Chester Draw Bias: 5f, 6f, 7f and 1m, by Field Size and Going

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By The Guv'nor · Last updated October 2026

Yes, the Chester draw bias is real, but only over the shortest trips. In 5f and 6f races with eight or more runners from 2015 to 2026, the lowest-drawn third of the field won 110 of 231 races (47.6%), against 29.3% expected by chance. At 7f the edge fades, and from 1m2f up it has gone.

Look, everyone "knows" you want a low draw at Chester. I'm essentially a statistics/maths geek, so I checked how big the edge is, where it stops and whether the bookies price it in, using every Chester result from 2015 to 2026: 1,174 races and 10,070 runners. Other tracks are in my draw bias guide to every UK and Irish course.

Chester draw bias at every trip, 5f to 2m2f

Races with eight or more runners from 5f (about 1,000m) upwards, field split into thirds by draw. "Expected" is the share if the draw made no difference.

Over 5f 15y and 6f 17y the low third wins about one and a half times its fair share and the high third only about half of its share, well beyond chance (chi-square p under 0.01). The 5f 110y trip points the same way on just 25 races. At 7f 1y the low draws still do a bit better, but the evidence is weak (p = 0.09). By 7f 127y it's hard to tell from noise.

What about Chester over 1m?

Chester doesn't stage a 1m race. The nearest trip is 7f 127y (listed as 7f 122y in 2015 and 2016), just short of a mile, where the draw is close to neutral, and the next one up is 1m2f 70y, with no clear bias either.

Why the tight circuit favours low draws

Chester is a tight, left-handed track of about a mile and a furlong round, raced on the Roodee since 1539, and you can compare its shape with every other track in my guide to UK and Irish racecourses. With a very short home straight, a 5f or 6f race spends most of its distance turning left. The low-drawn horse can tuck in on the rail; the wide one covers extra ground round the bend or drops in behind and hopes for a gap. Over longer trips jockeys have time to sort out their positions, which fits the edge fading as the distance goes up.

The racecourse knows it too. In July 2026 Chester launched a BHA-approved trial paying winners of selected 5f races a bonus by stall: a stall 9 winner gets an extra 9%, a stall 10 winner 10%, up to stall 15. Racing director Patrick Chesters said "the draw in our sprint races is a topic which is regularly discussed at Chester". The first two trial races, 5f handicaps on 25 July 2026, were won from stalls 11 and 7, for what two races are worth.

Field size and soft ground: when the edge shrinks

The common line is that the low draw matters less in small fields and that soft ground can flip it. I tested both on the 5f and 6f races.

Field size: the edge is smaller below eight runners but doesn't vanish, and from eight up it barely changes (the 12+ row is only 37 races).

Going: I can't find the soft-ground flip in these sprints. On Soft or Heavy the low third won 21 of 41 (51.2%), as strong as on Good. It's a small sample, so no proof the flip never happens, but 12 seasons of results don't back it up. Going is the official description before any "in places" (my guide to the going explains the terms).

At 7f there's no going effect worth the name either. Over both 7f trips the low third won 42 of 120 races on Good (35.0%, against 30.0% expected) and 16 of 49 on Soft or Heavy (32.7%, against 29.2%). Neither is far from chance, so no soft-ground story there.

Is the low draw over-bet? Returns by stall

A bias is only worth money if the price doesn't already allow for it. "Draw 1" here means the lowest-drawn horse that actually ran. A/E is winners divided by the winners the SP implied, with the bookies' margin stripped out: above 1.00 the market underrated that draw, below 1.00 it was over-bet.

So the market does know. Draws 1 and 2 win the most and the SP shortens them to match. Draw 2 comes out best (A/E 1.23, about break-even), but on 75 winners the true figure could sit anywhere from about 0.95 to 1.5. Blindly backing draw 1 lost 55.1 points at SP over 12 seasons.

Betfair SP (BSP) for 2024 to 2026 (313 races where every runner matched a BSP): draw 1 at 5f-6f won 22 of 98 for +11.4% to level stakes, before commission. Take out the biggest winner (BSP 22.74) and it's a loss, so treat it as noise until it repeats.

The more interesting finding is at 7f, where the rail draw looks over-bet: draw 1 won 40 of 352 races over the two 7f trips (11.4%, A/E 0.76 at SP), losing 162.3 points, and 9 of 93 in the BSP years (A/E 0.63). On 40 winners that's borderline rather than proven, and the BSP line rests on 9 winners, but both point the same way: the 7f rail gets backed like a sprint. More on pricing in my guide to value betting.

Chester May Festival notes

The 2027 Boodles May Festival runs from Wednesday 5 to Friday 7 May 2027, according to the racecourse and the BHA's 2027 fixture list. Trials Day has the Cheshire Oaks and the Chester Vase, the Vase being a recognised trial for the Derby (my Epsom Derby preview covers that side). Friday is Chester Cup day. Chester has 15 fixtures in the 2027 list, the last on 18 September.

The May sprints follow the course pattern, only more so. At the May meeting from 2015 to 2026 (none in 2020), the high third won just 5 of 45 races at 5f-6f with eight or more runners (11.1%, against 36.5% expected); the low and middle thirds won 20 each. May fields averaged 9.3 runners, against 8.6 across all Chester races.

Chester Cup draw bias: the last 11 runnings

The Chester Cup is run over 2m2f 140y, more than two laps of the track. Here's where the last 11 winners were drawn. There was no race in 2020.

Winners came from stalls 1 to 16, five of them from 10 or wider. By thirds the low third provided 4 winners, the middle 5 and the high 2; the first four home split 17, 18 and 9. On 11 races that's a lean against the wide draw at most. "Runners" counts horses that ran, so a stall can exceed it after non-runners.

Where the Chester draw fits in my betting

If I am honest, the low draw at Chester is one of the most talked-about edges in racing. It's real in the sprints, but everybody knows about it, and the numbers above say the bookies know about it too. I'm interested in profit month to month, not in how often I'm right, and backing short-priced horses because they're drawn 1 is exactly the sort of thing that gives you a nice win rate and an empty bank.

So I treat the draw as one input into the price, not as a reason to bet. What the numbers do suggest is looking at it the other way round: a horse that ran well from a wide draw last time, or one the market has knocked for a draw that matters less than people think, like a wide draw over 7f. That's the kind of outsider or each-way price I like, because even when they only place we can make more profit than an odds-on shot winning.

The rest is the same as anywhere. Stakes are in points (1pt might be £5 on a £100 bank), a big May field is no reason to go all in on a feeling, and if I'm unsure about one I skip it.

The data behind this page

Every Chester race from 2015 to 2026 from Sporting Life's result pages: 1,174 races and 10,070 runners, non-runners removed (2020 racing only from August). Draw is a horse's rank among the runners, so if stall 1 is a non-runner, stall 2 is "draw 1"; thirds split each field by that rank. 7f 2y/1y and 7f 122y/127y are each grouped as one trip. Prices are bookmaker SP, except the BSP lines (Betfair's published BSP files, 2024 to 2026, before commission). With twenty-odd splits tested, expect the odd fluke at the margins.

Members also get my Draw Biases In Flat Racing special, which looks at draw biases across the Flat.

Chester draw bias FAQs

What is the best draw at Chester?

Over 5f and 6f, draws 1 and 2 have won most often (19.7% and 21.1% of 355 races, 2015-2026, against about 12% for an average runner), but they're priced to match. Over 7f the rail has been over-bet, and from 1m2f up the draw makes no clear difference.

Does the draw matter in the Chester Cup?

Not much. The last 11 winners were drawn from 1 to 16, two from stall 1 and five from 10 or wider.

Does soft ground change the Chester draw bias?

Not on this data. The low third won 21 of 41 5f-6f races on Soft or Heavy (51.2%), as strong as on Good, and there's no clear going effect at 7f either. They're small samples, so keep an eye on it.

More in this guide

• UK and Irish racecourses by shape, direction and draw
• Draw bias at every UK and Irish Flat course
• York draw bias over 5f, 6f and 7f
• Ascot draw bias and the Royal Ascot handicaps
• Curragh draw bias: sprint track vs round course
• How to read horse racing form