All Weather Horse Racing Statistics: 13 Years Of UK Data

Thirteen years of UK all weather data, with sample sizes: how favourites are priced by course, class, going and field size, and what that means for your betting.

8 min read

All-weather racing has a reputation problem. It is often written off as the second-class cousin of turf: lower-grade animals, smaller fields, the floodlit graveyard shift on a Wednesday in February. The statistical picture is more interesting. UK all-weather racing is data-rich, with plenty of repeat runners, and its favourites have been priced close to fair.

That last point matters if you bet on it. This piece lays out, with sample sizes attached, what 13 years of UK all-weather data show, and is straight about which parts of the picture simply repeat the market’s own work back to you.

The short answer, before the working

What do all weather horse racing statistics show? In an earlier Race Advisor analysis of 320,395 UK all-weather runners across six tracks between July 2013 and March 2026, the favourite won 34.1% of races. Its A/E was 1.00. A/E is the ratio of actual winners to the number the starting prices implied, so 1.00 means the market priced those favourites about right. Course by course, class by class and going by going, the picture barely moves. The practical lesson is that blindly backing or laying the all-weather favourite does not hand you an easy gap. These all-weather figures measure how accurately the prices were set (A/E), not net return, so any angle you build on top of them still needs testing against the price.

What “All Weather Racing” Means In UK Statistics

UK all-weather racing runs at six tracks: Wolverhampton, Kempton, Lingfield, Newcastle, Chelmsford and Southwell. The surfaces are synthetic, mostly Polytrack and Tapeta, and some courses have changed surface over the years. They differ in feel, but for betting-market purposes they sit in one group. The going descriptions in the data are Standard, Standard To Slow and, very rarely, Standard To Fast.

Dundalk in Ireland also races on the all-weather, but it falls outside the UK figures here. Everything that follows excludes Dundalk and any Irish data. The point is the UK market, because that is where the racecards populate from, and that is the market a UK bettor is trading into.

The Headline Numbers: 320,000 Runners, A/E 1.00

Across 320,395 UK all-weather runners between July 2013 and March 2026, the overall win rate per runner was 10.2%. That fits an average field of nine or ten horses.

Restrict the sample to sole Betfair SP favourites (joint favourites excluded, to keep the comparison clean) and you get 32,552 races. Betfair SP is the Betfair Starting Price, the exchange’s closing price. Those favourites won 34.1% of the time, and the A/E for backing them blind was 1.00.

The last five years looked the same. For 2021 through early 2026 there were 139,973 runners, with a win rate of 10.4% and an A/E of 1.00. Sole favourites in that window won 34.2% across 14,424 races, with an A/E of 0.99.

These figures describe that stretch of racing and will not repeat to the decimal. They are best read as a picture of how the market has behaved, not a promise about next month.

How The Main Signals Compare

For a wider yardstick, here are verified figures across all of Great Britain and Ireland, all codes, from 1 July 2013 to 14 October 2026. They use Betfair SP, one point level stakes and 2% commission, with fallers and pulled-up horses counted as losers. This is a larger set than the all-weather sample above.

SignalRaces or runnersWin rateA/EReturn
Betfair SP favourite167,257 races34.4%1.00-1.4%
VDW Rank 1 (the runner our VDW rating system ranks top in a race)153,920 races21.6%0.99-3.8%
Race Predictor top horse (the runner our model rates highest in a race)167,314 runners25.5%1.010.0%

All three sit close to an A/E of 1.00. The win rates differ because they pick different horses: VDW Rank 1 is the favourite about 31% of the time, and the Race Predictor top horse about 41%. Even the favourite had a longest losing run of 28 races, and the other two had longer ones, so any of these needs a plan for long dry spells.

This is what the A/E ratio is for. It separates “the signal picks winners” from “the signal picks winners the market has underrated”. On the evidence here, the first is easy to find and the second is hard.

How The Six UK AW Tracks Compare (And Why The Answer Is “They Don’t”)

Bettors often look for a track-specific edge on the all-weather. Newcastle is the stiff track. Chelmsford rides fair. Wolverhampton is the bias circuit. There are races where draw, pace and surface combine into a track-shaped angle. In the earlier analysis, though, the pricing of favourites looked much the same at every course.

  • Wolverhampton: 81,380 runners, win rate 10.3%, favourite A/E 1.01 across 8,287 favourites
  • Kempton: 63,174 runners, win rate 9.5%, favourite A/E 1.00 across 5,927 favourites
  • Lingfield: 51,445 runners, win rate 10.9%, favourite A/E 1.01 across 5,545 favourites
  • Newcastle: 43,775 runners, win rate 10.0%, favourite A/E 0.98 across 4,324 favourites
  • Chelmsford: 40,707 runners, win rate 10.6%, favourite A/E 0.97 across 4,291 favourites
  • Southwell: 39,914 runners, win rate 10.5%, favourite A/E 0.98 across 4,178 favourites

Every course priced its favourites within 0.03 of an A/E of 1.00. The highest was 1.01 at Wolverhampton and Lingfield, the lowest 0.97 at Chelmsford, and a gap that small is what you would expect from ordinary variation. If you are looking for a course-shaped angle, it is more likely to sit in race conditions such as draw, pace and distance suitability than in track-level favourite pricing.

Days Since Last Run: What The Strike Rates Show

Here is how the same runners split by days since their last outing. These are win rates and counts only.

Days since last runRunnersWin rate
0 to 721,72613.6%
8 to 1461,11510.5%
15 to 28106,72410.4%
29 to 6062,47810.0%
61 to 9013,3739.2%
91 to 36532,8589.8%

The strike rate dips a little for the longer breaks, as you would expect, and the quick back-out-again group is the highest. A win rate on its own says nothing about price, so it cannot tell you whether any group is worth backing. What it does give you is a sense of how much to trust each group as a starting point.

Horses returning from a break are hard to read. The form figures are stale, and the connections may be running for fitness rather than the win. That is a good reason to look at the price carefully, and a poor reason to back or oppose a group blindly. If the idea interests you, it is something to test over a season of your own selections.

Class, Going And Field Size

The class breakdown on UK all-weather handicaps reads as flat as the course breakdown. Every grade priced at an A/E of 1.00 in the earlier analysis:

  • Class 2 handicap: 9,457 runners
  • Class 3 handicap: 12,608 runners
  • Class 4 handicap: 36,438 runners
  • Class 5 handicap: 60,637 runners
  • Class 6 handicap: 112,885 runners
  • Class 7 handicap: 3,404 runners

Class 6 is the most-run grade on the all-weather, with nearly half of all UK all-weather handicap runners, and it priced no differently from the higher grades above it.

Going was similarly flat. Standard accounted for 253,035 of the runners and priced at an A/E of 1.00. Standard To Slow accounted for another 66,377 and also priced at 1.00. Favourites on Standard To Slow had an A/E of 1.00 across 6,358, against 0.99 on plain Standard.

By field size, sole favourites in fields of 8 to 10 runners had an A/E of 1.02 across 12,876 races, against 0.98 in small fields of 5 to 7 and 0.98 in fields of 11 or more. None of those bands sits far from fair.

The picture for official ratings is the same. The top-rated horse on official rating won 13.8% of UK all-weather handicaps across 36,404 runners with an A/E of 0.99. The official rating is a useful guide to ability, but the top rated horse was priced about right.

How To Use AW Statistics In A Betting Process

Here is what to take from the figures.

First, be wary of a track-by-track all-weather angle on favourites. The six courses priced their favourites close to fair, so a course’s favourite record on its own is a thin basis for a bet.

Second, use rankings to build a shortlist rather than as a reason to bet. A strong ranking tells you a horse is likely to run well, but the figures above show that does not make it good value. The bet needs a reason on top, such as a price that looks bigger than the horse’s real chance.

Third, treat any broad filter you like, such as horses returning from a break, as an idea to test over a season of your own selections, recording losers as carefully as winners.

Fourth, accept that on the all-weather a single signal on its own is unlikely to be enough. The more promising work is narrowing down by things like distance suitability, pace or trainer form, and testing each step against the price. The all-weather racing system guide goes through that process.

If you want somewhere to start, open today’s race cards and pick out the day’s all-weather races to build a shortlist, then note the prices so you can check your ideas against them over time.