Greyhound Favourite Win Percentage: What 40,000 Races Reveal

Favourites Win a Third of Greyhound Races — but Lose You Money

There is a number that every greyhound bettor hears eventually: favourites win about a third of the time. It sounds reassuring until you do the arithmetic. Across 18 GBGB-licensed stadiums in 2021, an analysis of 41,321 graded races found that favourites won 13,748 of them — a strike rate of 33.27%. One in three. Consistent, reliable, and completely unprofitable at the prices typically offered.

The problem is not the win rate; it is the odds. A 33% winner at even money (1/1) would produce a small profit. But greyhound favourites rarely go off at even money. More commonly, they are priced between 6/4 and 5/2, which implies winning probabilities of 40% and 28.5% respectively. At 5/2, a 33% strike rate produces a level-stakes profit. At 6/4, the same strike rate produces a loss. The average favourite price across a full season tends to fall in the range where the overround — that 25% margin the bookmaker builds into a six-dog market — absorbs most of the value, leaving the backer with breakeven results at best.

This is why “always back the favourite” is not a strategy. It is a description of market pricing, and the market prices favourites to return roughly what you put in, minus the bookmaker’s margin.

Win Rates by Market Rank: Favourite Through to Outsider

The 33% average for favourites is only the beginning of the story. Every position in the market hierarchy has its own characteristic win rate, and the pattern is consistent enough to build tactical decisions around.

Second favourites win approximately 16-18% of greyhound races. Third favourites sit around 14-15%. Fourth favourites drop to roughly 10-12%. The fifth and sixth dogs in the market — the outsiders — manage 5-6% each. These figures come from empirical analysis of Betfair SP data and track-level statistics, and they have remained remarkably stable over the years I have been tracking them.

What stands out is the cliff between favourite and second favourite. The market favourite wins nearly twice as often as the second choice. In horse racing, where field sizes are larger and the form book is more complex, the gap between first and second in the market is usually narrower. The six-runner greyhound field concentrates the market’s assessment more sharply, meaning the favourite tends to be a more decisive indicator of perceived ability.

For bettors, these percentages set the baseline for any strategy. If you are backing second favourites, you need to identify which second favourites are worth the price, because 82-84% of the time, they will lose. If you are backing outsiders, your strike rate will be below 10%, which means your selections need to return multiples of their odds to justify the losing runs. The market rank is not destiny — it is a starting point for calculating whether the offered price exceeds the true probability.

How Favourite Success Varies From Track to Track

The 33% national average hides dramatic venue-level differences that I only discovered when I stopped treating “greyhound racing” as a single market and started treating each track as its own ecosystem.

Across the data I have reviewed, the winning favourite rate in graded races ranges from 31.60% at the lower end (Kinsley being one of the lowest-performing venues for market leaders) to 42% at the higher end. In open races, the variation is even more extreme — Central Park has recorded favourite win rates as high as 52%, while Yarmouth sits closer to 36%.

What drives this variation? Several factors. Tracks with tighter bends and shorter run-up distances produce more interference at the first turn, which introduces randomness that works against favourites. Tracks with long straights and wide bends allow the better dog to assert its superiority without getting impeded. The quality of the grading at a particular venue also matters — if the grading is precise and the dogs in each race are closely matched, upsets are more frequent. If the grading is looser and genuine class disparities exist within a single race, the favourite is more likely to justify its market position.

For practical betting, this means that a blanket strategy applied identically across all tracks is leaving value on the table. At a high-favourite track, laying the favourite is harder because it wins more often; but backing the favourite at fair odds is more viable. At a low-favourite track, opposing the market leader is statistically more justifiable, and value is more likely to exist further down the market.

Why a 33% Win Rate Does Not Mean 33% Profit

This is where the entire “back the favourite” discussion falls apart, and it is worth being explicit about the mathematics because the misconception persists.

A 33% strike rate generates profit only if the average return on winners exceeds three times the stake. At odds of 2/1 (3.0 decimal), a 33% winner returns exactly breakeven before bookmaker margin: for every three bets at one unit, you win once and collect three units, equalling your outlay. At anything below 2/1, the same strike rate produces a loss. At anything above 2/1, it produces a profit.

The bookmaker’s overround on a typical six-dog race is approximately 125%, which means the sum of implied probabilities across the field totals 125% rather than the true 100%. That excess 25% is the bookmaker’s built-in edge. It manifests as slightly shorter odds on every runner, including the favourite. If the favourite’s true probability is 33%, the bookmaker might price it at 7/4 (implied 36.4%) rather than 2/1 (implied 33.3%). That small compression — from 2/1 to 7/4 — is enough to turn a breakeven proposition into a losing one over hundreds of bets.

I have run my own level-stakes records on favourite backing across two tracks over a 12-month period. The result was a loss of approximately 8% of turnover — consistent with the theoretical expectation given average favourite prices and the bookmaker margin. The strike rate was close to 34%, which is actually above the national average. The problem was never the winners; it was the prices.

This does not mean favourites are always bad bets. It means that backing a favourite is only justified when the price exceeds your assessed probability — the same value betting principle that applies to every other selection. A favourite at 3/1 that you assess as having a 40% chance of winning is a strong value bet. The same dog at evens is a value destroyer. The market rank tells you nothing about value; only the relationship between price and probability matters.