Best Odds Guaranteed Explained: UK Bookies, BOG Times & Tips 2026

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What "Best Odds Guaranteed" actually means

Best Odds Guaranteed — usually shortened to BOG — is a horse racing concession that says: if you take a price on a horse and the Starting Price (SP) is bigger when the race goes off, the bookie pays you out at the bigger one. So if you back a 5/1 shot at 11am and it drifts to 8/1 by the off, your winning bet is settled at 8/1. You don't have to do anything. It's automatic on qualifying bets.

It sounds simple, and at heart it is. But the devil is in the detail — what counts as a qualifying bet, when BOG actually starts, whether it covers Irish racing, ante-post, evening meetings, the lot. Every bookmaker writes the rule slightly differently, and the differences are where the real value lives. We've been opening UK accounts and tracking BOG terms for years on viksaffiliates.com, and this guide is the cheat sheet we wish we'd had when we started.

One thing to clear up early: BOG is a horse-racing thing. Some firms have extended it to greyhounds, and a tiny handful flirt with BOG-style concessions on football or golf, but if a site advertises "best odds guaranteed bookmakers" without specifying the sport, assume it's racing. That's where the money is and that's where the competition between firms is fiercest.

Why BOG matters more than a sign-up bonus

Most punters get sucked in by the free-bet offer on the homepage. Fair enough — a £30 free bet is a £30 free bet. But if you bet on horses regularly, the value of Best Odds Guaranteed dwarfs any one-off welcome offer within a few months.

Here's the maths in rough terms. If you place 200 racing bets a year at an average stake of £10, and roughly a third of your winners drift from take-price to SP (which is a conservative estimate, especially on handicaps and Irish racing), BOG can add anywhere from £80 to £250 of extra return over a year. You don't see it on a single bet — it's a slow drip — but it compounds. Bookies with best odds guaranteed are quite literally paying you to take their early prices.

The flip side: a bookmaker without BOG is silently costing you. Every time you take an 11/2 about a horse that goes off 6/1, the firm pockets the difference. Over a season, that's the price of a weekend at Cheltenham. It's the single biggest "free" edge available to a recreational UK punter, and it costs nothing to claim — you just have to bet with the right firm.

The best BOG bookmakers in the UK for 2026

The BOG landscape has shifted in the last two years. A couple of big-name firms have quietly trimmed their concession — adding caps, narrowing the eligible race window, or restricting evening meetings. Others have stayed loyal to the punter. Below is how the main UK bookmakers with best odds guaranteed stack up as of May 2026, based on our own account testing and ongoing T&Cs monitoring.

Betfred sits at the top of our list because the concession is the most generous, the least faffy, and applies from first show — meaning even the 6am market openers count, not just bets placed after 8am. If you like to get on early when you spot a horse you fancy in the previews, that "from first show" window is genuinely valuable. You can open a Betfred account here and have BOG applied automatically to every qualifying bet.

Best Odds Guaranteed times — when does BOG actually start?

This is the bit most guides skim over and it matters a lot. "Best odds guaranteed times" is one of the most-Googled questions on this subject because the rules vary wildly between firms.

Three categories, broadly:

• From first show — BOG applies the moment the bookie prices up the race, often the night before for big meetings. This is the most punter-friendly. Betfred and a couple of independents still do this.
• From 8am on race day — the most common policy. Anything taken before 8am settles at the price you took only; SP improvements don't count. Most of the big firms use this.
• From 10am or later — a few firms have crept towards this. Avoid them if you're a regular morning-show backer.

Why does this matter? Because the early markets often produce the best drifts. A horse priced up the night before at 7/1 can be hammered into 9/2 in the morning rush and then drift back to 6/1 for the off. If you took 7/1 the night before with a "from first show" firm, you get 7/1 (or SP if bigger). With a "from 8am" firm, your earlier 7/1 wouldn't qualify for the BOG concession at all.

How to actually squeeze value out of BOG

Knowing BOG exists is one thing. Using it properly is another. A few habits that have made a measurable difference to our own returns:

Bet early, not late. The whole point of BOG is that you're protected against drifts. If you wait until five minutes before the off, the market's already done its work and the SP is unlikely to move much in your favour. Take the early price, accept the BOG safety net, and let the market do what it does.

Focus on handicaps and big fields. Drifts are most common in big-field handicaps where money comes for the fancied runners and leaves the 12/1 shots to drift to 16/1 or 20/1. That's where BOG silently turns winners into bigger winners.

Have at least two BOG accounts. Different firms have slightly different early prices. If you can pick the bigger of two prices and still have BOG protection, you're banking value twice. Betfred plus one other is a sensible minimum.

Check Irish racing coverage. Not every firm extends BOG to Irish meetings, and Irish racing is where some of the juiciest drifts happen. Always confirm in the T&Cs. Betfred covers Irish racing in full, which is one reason we keep recommending it.

If you're new to racing and want to broaden your strategy reading, we've covered niche markets in our guide to betting on table tennis and core casino strategy in our piece on the best tactics for roulette — both worth a read on a quiet evening between meetings.

BOG and the big festivals — Cheltenham, Aintree, Royal Ascot

Big-festival weeks are where BOG earns its keep. Antepost prices on Grand National fancies, Cheltenham handicap hurdle outsiders, Royal Ascot two-year-olds — these are the markets that move the most and where the gap between take-price and SP can be enormous.

A word of warning, though: ante-post bets (bets placed days or weeks in advance) generally do NOT qualify for BOG. The concession is almost always limited to bets placed on the day of the race, or in some cases the night before. If you back a horse at 25/1 for the Grand National in March and it goes off at 16/1 in April, you don't get the bigger price — you took 25/1 and that's what you keep. Which in that case is fine, because you got the bigger one. But if it drifts the other way to 33/1, ante-post bets don't benefit either. BOG is a race-day product.

For festivals specifically, opening accounts with two or three of the best odds guaranteed bookies a week or so in advance gives you the most flexibility to shop prices on the morning of each race. Betfred tends to be aggressive on festival pricing and the BOG concession applies as standard.

Common mistakes that kill BOG value

Things we see punters do that throw the concession away:

• Using "request a bet" or bet builder markets. Almost never BOG-eligible. The concession applies to standard win and each-way singles and multiples.
• Using free bets or bonus money. BOG usually only kicks in on cash stakes. Check the T&Cs — most firms exclude free-bet stakes from the concession.
• Backing at "industry SP" markets. If you took SP from the start, there's no take-price to compare against. BOG is for fixed-odds bets where you took a specific price.
• Cash-out. The moment you cash out, you've crystallised the bet at the cash-out value. BOG no longer applies.
• Forgetting evening meetings. Some firms exclude certain twilight or evening cards. Always check before you back.

FAQ

Do I have to opt in to Best Odds Guaranteed?

No, at all the major UK bookies with best odds guaranteed it's applied automatically to qualifying bets. You don't tick a box or claim it — if your horse goes off bigger than the price you took, the extra is paid as cash to your balance after the race is settled. Betfred is a good example — zero faff.

Does William Hill still offer Best Odds Guaranteed?

Yes, William Hill best odds guaranteed is still active on UK and Irish horse racing, applied from 8am on race day on qualifying fixed-odds singles. Terms have been tightened slightly over the years — always check the latest version on their site before you bet.

Does BOG apply to each-way bets?

Generally yes — both the win and place portions of an each-way bet usually qualify, paid at SP if SP is bigger than your take-price. Some firms restrict this on specific handicap rules, so check the small print.

Is BOG the same as a price boost?

No. A price boost is a one-off enhanced price the bookie offers, often for a specific horse or market. BOG is a standing concession that applies to every qualifying bet, every day. Boosts and BOG can sometimes stack, but more often than not boosted prices come with their own terms that override BOG.

Which bookie is best for Irish racing BOG?

Betfred and bet365 are both strong on Irish racing — Betfred runs BOG on all Irish races as standard, which is genuinely useful given how often Irish handicap markets drift. You can sign up to Betfred if Irish flat and jumps form a big part of your portfolio.

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