Best Odds Guaranteed: Horse and greyhound racing
Racing odds can fluctuate a lot before the start of each race, particularly within UK & Irish racing in which there is a lot of action from punters.
You could back a horse at 4/1 at 10:30am on the day of the race, and then a few hours later when the race is set to begin, it is possible that it has drifted to 7/1 because money has come in for other horses in the race.
If your bet was placed on the high street, you would have just had to settle for the 4/1 if it won. But with the best odds guaranteed promotion, which is implemented on many online betting sites, you'd be paid out at 7/1.
On the other hand, if you backed it at 4/1 and its starting price was 2/1, you would of course keep the 4/1.
Best odds guaranteed means you don't lose out if your horse's odds get bigger.
There are many promotions on horse racing betting sites, but perhaps none more important than best odds guaranteed (often shortened to BOG).
If you plan to place bets on horse racing or greyhounds, make sure you are using a bookmaker with BOG.
Best Odds Guaranteed: Top 3

Bet365 Best Odds Guaranteed
100% up to £100 in bet credits
The top best odds guaranteed promotion among online betting sites is the one offered by Bet365, for two main reasons. Firstly, bets from the day before the race are eligible, meaning you can take an early price and still get BOG. Secondly, races in a wide range of countries are included, such as the US, France, South Africa, and more.

Paddy Power Best Odds Guaranteed
£20 Risk Free Bet
Plus a £5 Bet Builder free bet!
With the Paddy Power best odds guaranteed promotion, you can win up to £50,000 per day, which is one of the highest limits in respect of this type of offer. The deal is valid for UK & Irish racing and bets must be placed from 8am on the day of the race.

888sport Best Odds Guaranteed
Bet £10 get £30 in Free bets
+ £10 casino bonus
888sport have a standard best odds guaranteed offer, with bets on the day of the race in UK or Ireland counting towards the promotion. There are a variety of other racing and sport deals on the site, including perhaps the best welcome offer on the market.
How best odds guaranteed works
Best odds guaranteed can cause some confusion at first because while the bookmaker is offering you the best odds out of either the fixed odds or the starting price, they are not necessarily giving you the top prices on the market.
Remember, even if a bookie is offering BOG, you might still find better odds on another online betting site. You should still shop around for the best fixed odds before locking in your wagers.
The 'guarantee' that you are being offered is that if you take a horse at a price a few hours before the race and its odds are greater at the start of the race, you will be paid at the bigger price if it wins.
A horse or greyhound's starting price is the final price offered before a race starts.
You can make the most of best odds guaranteed betting promotions every day, including during the Cheltenham Festival or Grand National.
All best odds guaranteed betting offers should apply to both win and each way wagers.
Let's say there is a horse racing card at Uttoexeter which begins in a few hours. You look at the races and pick out a horse you want to back.
The time is currently 10:30am, and the race starts at 1:50pm. You spot that the race is eligible for 'BOG', and you place a £10 bet on a horse called Killer Clown at 8/1.
Scenario 1: The starting price for Killer Clown drifts to 12/1 and it wins. Thanks to best odds guaranteed, you qualify for those 12/1 odds and win £120 plus your stake.
Scenario 2: The starting price for Killer Clown is cut to 6/1 and it wins. Because you backed it at 8/1, you win £80 plus your stake.
Scenario 3: Killer Clown doesn't win, and regardless of whether the starting price was bigger or shorter than the one you took, your bet is a loser.
Best odds guaranteed key terms
Compared with other betting promotions, there perhaps isn't much difference between one best odds guaranteed promotions and the next. They all mean the same thing, but there are some terms in the small print of each BOG offer that can make some more suitable for you than others.
- Eligible races
Usually, the bare minimum in terms of eligibility is all UK & Irish horse racing. Some bookies may also include all domestic greyhound racing, and in rare cases, international racing may also be a part of the betting offer.
- Time of day
Each betting site should specify what time your bet has to be placed from in order for it to qualify for best odds guaranteed. Of course, the earlier in the day the better, so that you can take the often valuable morning prices and be eligible for BOG. 8am onwards can be considered a good time, whereas 10am is less favourable. Bet365 allow you to place your bets the day before.
- Multiples
If you like to place accas and other multiples, you want to use a betting site that offers best odds guaranteed on these types of wagers, which isn't always the case. Some might offer BOG on doubles and trebles but not Lucky 15's and other similar multiples, so be sure to check beforehand.
- Maximum winnings
This is only really relevant to high stakes players, but winnings from best odds guaranteed promotions are capped per bettor on a daily basis.
Which betting sites offer BOG?
As best odds guaranteed promotions are only applied to horse and greyhound racing, you are most likely to find these kinds of offers on betting sites that specialise in those sports.
However, other bookmakers also offer best odds guaranteed promotions, so be sure to check new betting sites as many of them consider BOG an important deal to provide.
Online betting sites often have a 'Promotions' page where you can see the deals currently offered, or you can check the page for the sport you are interested in. Be sure to read all applicable terms and conditions carefully before placing any bets.
Best Odds Guaranteed Promotions
- Bet365 - Place your bets the day before
- Paddy Power - Win up to £50k daily
- 888sport - One of many racing offers
- Betfred - Available from 8am
- BetVictor - Includes greyhounds
- Unibet - Single & multiple bets
- GentingBet - Max increase £2k per race
- Betway - All UK & Irish horse races
BOG betting sites
100% up to £100 in bet credits
Open Account Offer. Up to £100 in Bet Credits for new customers at bet365. Min deposit £5. Bet Credits available for use upon settlement of bets to value of qualifying deposit. Min odds, bet and payment method exclusions apply. Returns exclude Bet Credits stake. Time limits and T&Cs apply.
£20 Risk Free Bet
Plus a £5 Bet Builder free bet!New customers only. Place your FIRST bet on any Sportsbook market and if it loses we will refund your stake in CASH. Max refund is £20. Only deposits made using Cards or Apple Pay will qualify. £5 Bet Builder free bet will be available to claim from the promotions hub after the qualifying bet has been settled & will be valid for 7 days. T&Cs apply.
Bet £10 get £30 in Free bets
+ £10 casino bonusNew customers only • Min deposit £10 • A qualifying bet is a ‘real money’ stake of at least £10 • Min odds 1/2 (1.5) • Free Bets credited upon qualifying bet settlement and expires after 7 days • Free Bet stakes not included in returns • Deposit balance is available for withdrawal at any time • Withdrawal restrictions & Full T&C’s apply
Bet £10 get £30 in Free bets
+ 60 Free Spins!New UK & NI customers only. promo code ‘SPORTS60’. Deposit & place first sports bet of £10+ in one bet transaction, at odds of Evens (2.0) +. settled within 60 days. First bet must be on Sports. £30 in Free Bets credited within 48 hours of bet settlement, 7-day expiry. Payment restrictions apply. SMS validation may be required. Max 60 Free Spins on Justice League Comics. 7-day expiry.Full T&Cs apply.
Bet £5 get £30
18+ New Customers only. Deposit, opt in and place a £5 qualifying bet at odds of 2.00 or greater within 7 days of opening a new account; excludes cashed out bets. Receive 2x £10 Free Sports Bets, valid on set events only at odds 2.00 or greater, expires in 7 days. Plus a £10 Game Show Bonus, selected games, wager 40x to withdraw a max of £250. PayPal and Card Payments only. Geographical Restrictions and T&Cs Apply. Please Gamble Responsibly.
£40 Money Back
+ £10 casino bonusNew customers only. 18+, BeGambleAware.org. Min deposit £10. Money back as bonus. Wagering requirements: Sportsbook 3x at min. odds of 1.40 (2/5), Casino 25x. Only one bonus can be used at a time, Sportsbook bonus must be wagered before using the Casino, unless the bonus has been forfeited. Bonus will expire after 7 days of opt-in.
Up to £25 Free Bet
If your first settled bet doesn't winNew Customers only. First settled bet £/€10 (£10 E/W+) - £/€25 (£/€25 E/W+) at odds 2.0+ qualifies. If first settled bet loses, free bet credited within 24 hours of bet settlement, use within 7 days, Stake not returned. See Full T&Cs.
£10 Free Bet
New UK customers only. £10 Min Deposit. 100% matched free bet on your first deposit of £10. 1 x wagering at odds of 1.75+ to unlock Free Bets. Debit Card & Paypal deposits only. This offer is valid for 7 days from your new account being registered. Full Terms apply. 18+. BeGambleAware.org. Bet The Responsible Way.