How to Build Greyhound Racing Betting Tips That Actually Mean Something

Updated October 2026

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A betting tip is a forecast dressed as advice, and a forecast is only as good as the information behind it. This page is not a list of dogs to back. It is a guide to how a serious greyhound tip is built from form, track conditions, the shape of the race, and the price on offer — and how a punter reads the bookmaker’s margin out of the odds before any of that work matters. The data is current as of 27 October 2026 and was checked against the Gambling Commission’s public register.

How a Bet Is Built From a Price

What “odds” actually are

Decimal odds turn a stake into a return. A £10 bet at odds of 3.00 returns £30, of which £20 is profit; a £10 bet at 1.50 returns £15, of which £5 is profit. Fractional odds express the profit only: 5/1 means £5 profit for every £1 staked, 9/10 means £9 profit for every £10 staked. The two forms convert by a simple rule (a/b → a ÷ b + 1), so 9/10 is 1.90 in decimals. Most UK-facing bookmakers let a punter switch between the two in the betslip.

The starting price (SP) is the odds on a dog when the race begins, taken from the on-course fixed-odds market. SP matters because Best Odds Guaranteed (BOG) — a feature on UK and Irish racing at several operators — pays the bigger of the price taken and the SP. If the bookie offers 4.00 and the dog drifts to 6.00 SP, the punter is paid at 6.00. If the price taken is bigger, the punter keeps it. BOG is not a free upgrade; it is a safety net against the price moving against the bet.

The margin baked into every market

A bookmaker does not offer “true” odds. The prices on the runners of a six-dog race sum to more than 100 per cent in implied probability terms, and the gap between that sum and 100 per cent is the overround — the bookmaker’s margin. Take an illustrative two-way market priced at 1.90 and 1.90 (9/10 each). The implied probabilities are 1 ÷ 1.90 = 52.63 per cent for each side, totalling 105.26 per cent. The 5.26 per cent above 100 per cent is what the bookmaker keeps, on average, of every pound staked on that market. The margin of a greyhound race depends on how many runners the book lists — more runners, more outcomes, and the operator must price each one — and on the competitiveness of the market for that meeting. A morning price on a televised opens at a tighter margin than an evening BAGS card on a quiet Tuesday; an in-play market at the second bend is wider still, because the bookmaker has less time to balance the book and more uncertainty about the live picture.

This is why “the odds” are the first thing a tip works against, not the last. A tipster who names a dog at 6.00 is making a claim: that the dog’s chance of winning is greater than 16.67 per cent (the implied probability). If the dog has won three of its last twenty races and is now stepping up in class, the claim is weak. If the dog has won six of ten at this track and the trap draw favours early leaders, the claim has something behind it. The price is the question, and the form is one of the answers.

What a value bet is — and why no tip is ever certain

A value bet is a price that is bigger than the true probability of the outcome. A dog with a 25 per cent chance of winning, priced at 5.00 (implied 20 per cent), is a value bet — the punter is being paid more than the chance justifies. A dog with a 25 per cent chance at 3.00 (implied 33.3 per cent) is not, regardless of how strongly the form-reader feels about it. The arithmetic is simple; the work is in estimating the true probability, which nobody can do with certainty. A greyhound race is six animals over a few seconds, and any one of them can clip a rival, miss the break, or find trouble at the first bend. Form is evidence of a base rate, not a forecast.

The punter’s edge, where one exists, comes from knowing more about the dogs than the market does. That might be a trainer’s record at a specific stadium, a greyhound’s section times at that distance, a kennelmate’s recent runs, or a trap draw that suits front-runners on a tight circuit. Where the punter has no edge — and most casual punters do not — there is no value, only price. Betting at random through a margin-laced market bleeds the stake over time, the same way a roulette wheel does.

Why the spread of prices matters

Reading one price tells a punter what one dog might win. Reading several prices on the same race tells a punter how the bookmaker sees the race. A field with a clear favourite at 2.00 and a tail of 10.0-plus runners is a different picture from a field priced 4.00, 4.50, 5.00, 6.00, 8.00, 12.00. The first is a two-horse race; the second is a wide-open handicap where any of six dogs could win. The shape of the market, not the headline price, decides whether a small-stake each-way or a saver on a long-shot makes sense.

Markets a Greyhound Punter Uses

Win and each-way

A win bet pays out if the dog finishes first. An each-way bet is two bets of equal stake: one on the win, one on a place (usually the first two in a six-runner race, the first three in a race with eight or more runners, though the operator’s place terms vary by race). The stake doubles. A £10 each-way bet is £20 staked. If the dog wins, both parts pay. If the dog places, only the place part pays, usually at a fraction of the win price (1/4 or 1/5 of the odds is standard for greyhounds). Each-way is the market for a punter who thinks the dog has a fair chance of hitting the frame but the favourite looks too short to back for a win.

Forecast and tricast

A forecast names the first two finishers in order; a tricast names the first three. The payout is fixed-odds at the time of placing, not a parimutuel dividend. These markets are punter-unfriendly unless the punter has strong opinions on the shape of the race — a clear front-runner and a known closer, for instance, with the rest of the field a step behind. The margin on forecasts and tricasts is wider than on outright win markets, so the edge has to be substantial.

Ante-post

Ante-post is betting before the final declarations are made. The dog may not run. If the dog is declared a non-runner, the stake is usually refunded — though bookmaker rules differ on this and the punter should check before staking. Ante-post prices are bigger than the day-of-race price precisely because the runner is not guaranteed to line up. For major meetings (the English Greyhound Derby, the Irish Greyhound Derby, the Scottish Greyhound Derby) ante-post is a serious market with serious liquidity.

Spread betting on greyhounds

Financial spread betting is a separate product regulated by the Financial Conduct Authority, not the Gambling Commission. The punter does not bet on a dog to win or place; the punter bets on a number — the winning distance, the total number of lengths the favourite wins by, the winning time — and the spread is the range the book quotes. The payout depends on where the actual outcome sits in that range, and losses can exceed the original deposit. A £5-per-point stake on a spread of 2 lengths either side of a quote could lose many times £5 if the result goes badly. Spread betting is not an extension of fixed-odds betting; it is a different product with different maths and different risk.

Bet builders, accumulators, and specials

Bet builders and same-game multis combine several outcomes from the same race — dog to win, dog to finish in the top two, race to go to the trap-one dog — into one price. The odds on the legs multiply. So does the margin: each leg carries its own overround, and the combined margin is wider than the margin on a single selection. Accumulators (or “accas”) across several races carry the same compounding — a four-fold acca has the margin of all four races baked into its single price. Price boosts and acca insurance are marketing wrappers around the same underlying market; the boost raises the headline odds without removing the margin, and acca insurance refunds a losing stake as a free bet if one leg lets the punter down, not as cash.

Greyhound Racing in Great Britain

How the sport is run

Greyhound racing in Great Britain is regulated by the Greyhound Board of Great Britain (GBGB), which oversees 18 licensed stadia. The sport is centred on the classic circuits at Wimbledon, Belle Vue, Perry Barr, Shelbourne Park, and the regional tracks that run meetings several times a week. Theirs is a sport of six dogs over 400 to 700 metres, run on sand or grass, with a mechanically operated artificial lure running ahead of the field along the inside rail. Backing a dog is betting on a parimutuel pool on-course and against a bookmaker off-course. Both channels settle from the same on-course result; the SP is the on-course fixed-odds figure at the off.

Where the bookmaker’s price comes from

Bookmakers do not price races from scratch. The big firms hire former greyhound traders, take feed from the on-course bookmakers and from data providers such as the Racing Post, and combine those with their own models. A small regional firm has less data, less sophisticated modelling, and — usually — wider margins on the meeting. The punter reading two books on the same race will sometimes find a meaningful price difference on the same dog. That difference is the live edge, and BOG is what makes betting early with one firm — locking in the better price — and not losing when the SP drifts past it.

Trap draw, going, and the shape of the race

Trap draw matters more in greyhound racing than in most other betting sports. A bend race with the rail on the inside favours inside traps; a wide, galloping track with long straights neutralises the draw. The going (the surface condition) affects times: a wet sand track slows every dog, and greyhounds with section times suited to the conditions rise in the rankings. The shape of the race — front-runner versus stayer, strong finisher versus rail-hugger — decides whether the favourite is really the favourite. A punter who reads the form without reading the race is handicapping on paper.

Meetings the punter watches

The English Greyhound Derby, run at Towcester, is the centrepiece of the British calendar. The Irish Greyhound Derby at Shelbourne Park and the Scottish Greyhound Derby at Shawfield are the other two majors. Below them sit the Category One events — the BresBet Regency, the RPGTV Juvenile, the Greyhound of the Year stakes — which draw the top-grade fields. Below those are the open-race meetings at the 18 licensed stadia, run nightly and priced morning-of. The punter who follows one or two circuits and one or two trainers builds a sharper picture than one who scatters bets across the calendar.

The 10 Greyhound Bookmakers, Side by Side

The ten operators below all hold a Gambling Commission remote licence for Great Britain, listed against their licensee on the Commission’s public register. Several are large established firms; others are independent or specialist operators whose greyhound market is the centre of the offering. The table reads licence first, bookmaker second; the right-hand column captures what each operator’s own terms say about the racing product, which is where the practical difference lives.

Every brand in the table takes part in GAMSTOP and operates under the Commission’s safer-gambling and affordability rules; the offering shapes differ, not the regulatory floor. A punter comparing two of them should look at three things in order: the price on the race in front of them, the BOG and place-term rules that apply to it, and whether the brand carries the live greyhound streams or form tools that suit the way they bet. The licences are not interchangeable, but they are a level playing field beneath the marketing.

Greyhound Racing Outside Great Britain

The New Zealand ban

Greyhound racing in New Zealand was ended by the Racing Industry (Closure of Greyhound Racing Industry) Amendment Act 2026, passed on 2 April 2026, with the phase-out set for 1 August 2026. The political ground for the ban was laid on 10 December 2024, when Winston Peters announced that greyhound racing in New Zealand would be banned and phased out by 2026. Until the closure Greyhound Racing New Zealand organised seven affiliated clubs: Auckland, Waikato, Whanganui, Palmerston North, Canterbury, Otago and Southland. New Zealand bookmakers had offered a local racing market on those meetings; that market is no longer operating.

Other jurisdictions

Australian greyhound racing continues across most states, with the industry governed by state-based regulators and greyhound racing specifically permitted in New South Wales, Victoria, Queensland, South Australia, Western Australia, Tasmania and the Northern Territory. Irish greyhound racing runs under the Irish Greyhound Board, with Shelbourne Park, Clonmel, Limerick, Galway, Thurles and Cork among the major tracks. Bookmakers licensed for Great Britain offer markets on those meetings alongside the domestic fixtures — ante-post on the Irish Greyhound Derby, daily win markets on Australian meetings from the night before. The legal framework a punter is betting under is the British one, regardless of where the race is run.

Legality of Greyhound Betting in Great Britain

The licensing test

A bookmaker serving customers in Great Britain needs a Gambling Commission licence, wherever the operator itself is based. Since the Gambling (Licensing and Advertising) Act 2014 — which amended sections 33 and 36 of the Gambling Act 2005 — a Curaçao, Maltese or Gibraltar licence is not a substitute. The Commission’s public register is the whole test: any brand whose name, trading name, domain or licence number does not appear there is not licensed for the British market. The register lists licence holders, not trading brands; one licensee can run several brands, so seeing one brand on the register is not a recommendation of the group.

There is no state monopoly on remote betting in Great Britain and no cap on the number of licences. The Commission’s licences fall into several categories — remote general betting standard (real events), remote general betting standard (virtual events), remote general betting limited, remote pool betting and remote betting intermediary (the exchange category). Greyhound markets sit inside the general betting standard categories. Pool betting on greyhound racing is a separate licence, and the duty on it is set separately; the figures below cover fixed-odds general betting, which is the bulk of what online bookmakers sell.

What may be bet on

There is no statutory list of permitted bets or markets. An operator holds a licence for a category and offers markets under its own rules and the Licence Conditions and Codes of Practice (LCCP). In-play betting is offered by GB bookmakers and the controls on it are the operator’s licence conditions and customer-protection duties. Esports are treated like any other event for licensing purposes; virtual events are a separate licence category. Politics, TV shows and novelty markets are offered by GB bookmakers and no statutory prohibition was found. There is no statutory cap on stakes; the bookmaker sets a maximum, and may restrict individual customers.

Identity, age and the verification rule

The minimum age for betting in Great Britain is 18. Name, address and date of birth are verified before a customer can deposit or gamble, including with a free bet or bonus. The rule has been in force since 7 May 2019; it is the reason a GB-licensed site asks for documents at the first deposit rather than the first withdrawal. Anonymous play is not available at a licensed site.

Safer Gambling Tools and the Rules Behind Them

GAMSTOP and self-exclusion

GAMSTOP is the national multi-operator online self-exclusion scheme, and a mandatory licence condition for online operators since 31 March 2020. A punter can self-exclude for six months, one year, five years, or five years with auto-renewal; after the minimum period the exclusion stays in place for a further seven years unless the punter asks GAMSTOP to remove it. GAMSTOP covers online sites and apps; betting shops run a separate self-exclusion arrangement. Excluding is free and takes effect across every GB-licensed online operator on the same day.

Vulnerability and affordability

A financial vulnerability check (LCCP condition 3.4.4, in force since 30 August 2024) applies to licensed remote betting when a customer’s deposits minus withdrawals exceed £150 in a rolling 30 days, in force since 28 February 2025. The check is a public-record check — bankruptcy, county court judgments and the like — not an income check and not a credit reference check. Financial risk assessments — the “affordability checks” of the press — were announced in a staged plan (Commission article of 7 July 2026) with no start date yet. There is no state-set deposit or loss ceiling: limits are the customer’s choice, set inside the safer-gambling page. Operators must offer a gross deposit limit on a fixed time frame under RTS 12; the first changes have applied since 31 October 2025, a second phase was postponed to 30 September 2026, and whether it is live is not established.

Where to get help

GamCare runs the National Gambling Helpline. GambleAware funds treatment and research. NHS gambling clinics offer free treatment in several regions. Gamblers Anonymous runs peer-support meetings across the country. Several operators — Unibet included — link directly to those services from the safer-gambling page, alongside their own deposit limits and product blocks. The links are a guide, not a recommendation, and a punter worried about their betting should use them regardless of the bookmaker they bet with.

Bonus Terms Worth Reading

What an offer usually costs

A welcome offer at a GB-licensed bookmaker is typically a free bet or a bonus — not cash. A £40 free-bet bundle on a £20 qualifying bet at minimum odds 2.0, the form several firms use, requires the punter to stake £20 of their own money first; the free bets arrive after settlement and expire within seven days. They are not withdrawable as cash; they can only be staked again, and a winning free bet pays the profit only (a £10 free bet at 4.00 returns £30 of profit, not £40 of return — the £10 stake is not returned). Wagering requirements on bonuses are capped at 10x since 19 January 2026: a £10 bonus at 50x was £500 of turnover before the cap; under the cap no bonus can ask for more than £100 of qualifying bets. Mixed-product promotions — an offer that requires gambling on two or more product types, like “bet on football to get free spins” — are banned outright under the same rules.

What an offer does not do

An offer does not change the underlying margin. A price-boosted selection still has a margin baked in; the boost is a marketing wrapper around the same market, not a free upgrade on the overround. An acca-insurance refund is paid as a free bet, not cash — so a punter who lands five of six legs and loses one is given another chance to bet, not their stake back. A “risk-free” first bet, where one exists, refunds the stake as a free bet on a losing first selection: the punter has not had a free entry; they have had a second go, with the same house rules as before. None of this makes the offer worthless; it makes the offer worth what its terms say it is, not what the headline implies.

BOG and offers together

Best Odds Guaranteed sits apart from the offer structure. It is a feature of the racing product, paid on the win and each-way parts of qualifying bets, and applies to UK and Irish racing on several operators — BetGoodwin across all UK and Irish horse and greyhound, Fafabet from 9am on race days for horse racing win and each-way. BOG pays the bigger of the price taken and the SP; if the dog shortens, the punter keeps the bigger price taken; if the dog drifts past it, the punter is paid at SP. BOG is a feature a punter who bets early on a greyhound should look for specifically, because early prices on the morning of a meeting tend to be tighter than the SP and BOG gives the punter the SP if it turns out to be the better number.

Mobile and App Betting on Greyhounds

What a greyhound app needs to do

A greyhound punter using an app needs four things: a fast betslip with single-tap stake adjustment, a race-card view that lists trap number, recent form and trainer, live odds with one-tap BOG where available, and a cash-out button that does not bury the live picture under a confirmation prompt. The bulk of GB-licensed bookmakers offer all four on the major races. Specialist and independent brands vary more. Betfred’s app carries Bet Builder, Sub Switch, Racing Post data and Extra Places; 888sport’s app carries Cash Out, Bet Builder, racing streams, BetFinder form tools and a live bet feed. Smaller books — Star Sports, Fitzwilliam Sports, BetGoodwin — concentrate on the racing product itself and let the rest of the app be quieter.

Phone betting and the specialist route

Phone betting is not dead at the independent end. Fitzwilliam Sports runs phone and live chat with the office open 09:00 to 21:00, Monday to Sunday, with messenger replies typically within 90 seconds; the model is older-style personal service, and for the punter who bets by calling rather than tapping, it is the right one. Star Sports runs the same independent-bookmaker shape with virtual sports, casino and live casino alongside the sportsbook. These firms are not the right fit for a punter who wants a one-app multi-product experience, but they suit a punter who wants a phone number to call when a market moves.

Browsers and tablets

GB-licensed bookmakers run their site in mobile browsers as well as apps. The punter who does not want to install another app is not excluded from the market — they lose the speed of an installed app’s betslip and the one-tap live login, but the prices and the markets are the same. Some operators (Midnite, Kalooki Sportsbook) lead with a mobile site rather than an app. The punter’s choice between an app and a browser is a speed-versus-storage trade-off, not a features-versus-features one.

Live Betting and Cash Out on Greyhounds

In-play markets

GB-licensed bookmakers offer in-play betting on greyhound meetings, with markets updating during the race. The picture in-play is limited: the race is six dogs over a few seconds, and the in-play markets are mostly winner and tricast at shorter intervals, plus the occasional match-race market on a graded event. The margin on in-play greyhound markets is wider than on the morning price, because the bookmaker has less time to balance the book and more uncertainty about the live picture. A punter who bets in-play on greyhounds is paying for the immediacy in margin.

Cash out

Cash out settles a bet before the race runs — at a price the bookmaker quotes, not at SP. The price reflects the bookmaker’s view of the bet’s current value: a dog three lengths clear at the second bend in a live picture, with a £10 win bet at 5.00, might be offered at £38 to cash out (the lock of roughly the bet). The bookmaker takes a cut of the value for offering the cash out, and the spread between the true value and the cash-out price is the cost of the certainty. A punter who uses cash out on a regular basis is paying a recurring fee for the right to lock in a profit before the result is known. The 888sport app exposes Cash Out alongside its racing streams, and that combination — live picture plus cash out button — is the typical layout on the bigger books.

Live streaming

Live streaming of greyhound meetings is offered by several operators on UK and Irish meetings. The streams usually require a small stake on the race or a positive account balance to unlock, and the picture is several seconds behind the live betting feed so the bookmaker is not betting against its own price. Streams change what a punter can do in-play: a punter who can see the break, the first-bend positioning and the run to the line has more information than one betting off a written feed, and a wider margin is partly the cost of that information.

Building a Greyhound Tip From the Form

What form is and what it is not

Form is the dog’s recent record — typically the last six to ten races — read at the same track and grade where the dog is running next. Form is not a forecast. A dog that has won three of its last six at Henlow over 460 metres is showing a 50 per cent strike-rate at that trip and that track; the next race may be at a different trip, a different grade, a different going. Form is a base rate, and the punter’s job is to decide whether the conditions of the next race match the conditions under which the form was built. A step up in grade, a switch from an inside to an outside trap, a wetter surface, a longer trip — each one adjusts the estimate.

What statistics add to form

Section times — the time to the first bend, the time at various stages of the race — let a punter see how a dog actually runs, not just where it finishes. A greyhound with a fast early section but a weak finish is a leader who gets caught; a greyhound with a slow break but a strong finish is a closer who needs a clean run. Trainer and kennel statistics add another layer: certain kennels outperform at certain tracks, and certain trainers prepare dogs for specific distances. None of this is decisive on its own. Read together — form, section times, trap draw, trainer record at the track — the picture sharpens. The price on the race is the test of whether the picture is worth acting on.

Why the punter’s edge is small

Even a sharp punter is working against a margin, and a margin is a tax on every bet. The punter who beats the market over a season does so by a small percentage — a couple of points of edge at most, in most accounts of profitable betting. Most punters do not beat the market. Most punters lose slowly, and the bookmaker’s edge is the difference between a losing and a profitable year. A punter who treats greyhound betting as entertainment rather than income is closer to the realistic picture than one who treats it as a side hustle.

Bankroll and staking discipline

The single rule that separates a disciplined punter from an undisciplined one is stake size. A common rule is to stake no more than 1 to 2 per cent of the bank on a single selection, and to keep a written record of every bet. The bank is the dedicated amount of money the punter has set aside for betting, not the household budget. A punter whose bank is £500 should be staking £5 to £10 a race, not £50; a losing streak will come, and a bank that cannot absorb a ten-race losing streak is too small to be betting with. Chasing losses — increasing the stake to recover earlier losses — is the behaviour that empties a bank fastest.

Where systems fit in

A “system” in greyhound betting is a set of rules for selecting dogs — back trap one at certain tracks, back dogs with a fast early section, lay favourites in maidens. The rules narrow the field of bets but do not eliminate the variance. A punter following a system should track results over hundreds of bets before concluding the system works; a winning week is not evidence, and a losing week is not refutation. The honest description of any betting system is that it is a structured way of choosing bets, not a way of winning them.

What a Welcome Offer Typically Costs to Clear

The arithmetic below is illustrative, using the standard structure of a GB-licensed welcome offer. The qualifying bet and the free bet are the two halves of the same transaction; the punter’s stake is on the first, the free bet is the second. Suppose a bookmaker offers £40 in free bets on a £20 qualifying bet at minimum odds 2.0. The punter places £20 at 2.0 — a return of £40 if the selection wins — and receives four £10 free bets on settlement.

Each £10 free bet at odds 3.00 returns £30 of profit (the £10 stake is not returned). At a market margin of 5%, the free bet is worth, on average, £10 × (3.00 − 1) ÷ 3.00 × 0.95 = £6.33 over the four legs, or roughly £25 in total across the bundle. The punter’s net position is the £20 stake against a £25 expected value from the free bets — a small positive, before the margin on the qualifying bet itself is taken into account. The qualifying bet carries the same 5% market margin, which on a £20 stake at 2.0 costs roughly £1.00 in expected terms. Net expected value: about £24 across the welcome bundle, before any losing run on the free bets cuts into it.

A punter clearing several welcome offers in a row — opening accounts, placing the qualifying bets, working through the free bets, withdrawing — is doing what the matched-betting literature describes as a value form, not a tipster’s edge. The work is in the offer terms, not in the form book. The £150 vulnerability check and the verification-before-deposit rules have made that path harder than it was a few years ago: a new account with a new bookmaker now means a fresh identity check and, if the punter’s 30-day deposit net exceeds £150 across several accounts, a public-record check that flags County Court Judgments and bankruptcies. The offer is still there; the cost of running several in a year is higher than the marketing suggests.

Frequently Asked Questions

How do you bet on greyhound racing?

Choose a dog in a race, pick a market (win, each-way, forecast are the main ones), set a stake, and place the bet before the race starts. Settle from the result: a win bet pays out if the dog finishes first; an each-way bet pays out if the dog wins or places; a forecast pays out if the first two finishers are named in the correct order. Best Odds Guaranteed, where offered, pays the bigger of the price taken and the starting price if the dog drifts.

How do you bet on greyhound dogs?

The same mechanics as horse racing: pick a market, set a stake, place the bet. The differences are the trap draw (one to six) and the trip (400 to 700 metres is the typical range), both of which matter more than they do in flat racing. Reading the race card for trap number, recent form and trainer record is the part that separates a thought-out bet from a name-in-the-frame one.

Can you actually win at greyhound betting?

Some punters do, over long periods, by finding prices that are bigger than the underlying chance. Most punters do not. The bookmaker’s margin — the gap between the implied probabilities of all runners and 100 per cent — is a tax on every bet, and over hundreds of bets the tax wins unless the punter is sharper than the market. Greyhound racing is betting, not income, and the honest expectation is that the bank shrinks slowly rather than grows.

What is a value bet and why is no tip ever certain?

A value bet is a price that is bigger than the true probability of the outcome. A dog with a 25 per cent chance of winning, priced at 5.00 (implied 20 per cent), is a value bet; the punter is being paid more than the chance justifies. No tip is certain because greyhound racing is six animals over a few seconds, and any one of them can clip a rival, miss the break or find trouble at the first bend. Form is evidence of a base rate, not a forecast.

What is the bookmaker’s margin and how can it be seen in the odds?

The margin is the gap between the sum of the implied probabilities of all runners in a market and 100 per cent. In an illustrative two-way market priced at 1.90 and 1.90 (9/10 each), the implied probabilities are 52.63 per cent on each side, totalling 105.26 per cent; the 5.26 per cent above 100 per cent is what the bookmaker keeps, on average, of every pound staked. The wider the field, the more outcomes the bookmaker must price, and the wider the margin tends to be.

How is the return on a bet worked out from the stake and the odds?

For a win bet, return = stake × odds. A £10 bet at odds of 3.00 returns £30, of which £20 is profit. For a combination bet — an accumulator, a bet builder — the odds of the legs multiply into one price, and the return is the stake multiplied by that combined price. The starting price (SP) is the on-course fixed-odds figure at the off, and Best Odds Guaranteed ensures the better price is paid if the dog drifts.

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