Highest Odds Bookmakers 2026 — Where to Get Best Value
The best odds bookmaker for you depends on what you bet on. No single bookmaker leads across every market — Bet365 is sharper on in-play football, Unibet beats them on Bundesliga pre-match, William Hill is best on UK horse racing with BOG, and Pinnacle (where available) has the lowest margin of all. The key metric is the overround — the sum of all implied probabilities in a market.
Understanding the Overround
If a bookmaker offers evens (2.00) on both sides of a coin flip, the overround is 100% — zero margin. In practice, bookmakers offer around 1.91 on both sides of a 50/50 bet — an overround of ~104.7%. The lower the overround, the better the odds for bettors.
Add up (1 ÷ odds) for every outcome. Result above 1.00 = bookmaker margin. Example: football 1X2 with odds 2.10 / 3.40 / 3.50 = 47.6% + 29.4% + 28.6% = 105.6% overround (5.6% bookmaker margin).
Average Overround by Bookmaker and Market
| Bookmaker | PL Football 1X2 | Tennis 2-way | Horse Racing Win |
|---|---|---|---|
| Bet365 | ~104.5% | ~103.8% | ~115% |
| Unibet | ~104.8% | ~104.5% | ~116% |
| William Hill | ~105.2% | ~105.0% | BOG applies |
| Betway | ~105.5% | ~105.2% | ~116% |
| 1xBet | ~103.5% | ~103.2% | Limited |
Overrounds are averages based on sampled markets. Individual match odds vary. BOG at William Hill effectively reduces the overround on racing to near-zero for early-price bettors.
The Practical Answer
For football: Bet365 and 1xBet are consistently the best. Use both — Bet365 as primary, 1xBet when their odds are higher on a specific market.
For tennis: 1xBet edges the field on average overround. Bet365 is close and more convenient for most UK bettors.
For horse racing: William Hill with BOG is unbeatable. You're guaranteed the SP if it beats your early price — effectively reducing the margin to near-zero on winning bets where you took an early price.
Best Odds Bookmakers — Recommended Accounts
365