Chester Williams

The headline moment came on 27 December 2025 at Chepstow, where Williams won a Class 1 race — one of the top races in Britain. Landing a race at that level inside your first few months of training is the sort of thing that makes the rest of the industry sit up and take notice. It suggests Williams isn't just picking up easy wins at midweek meetings; he's preparing horses to compete when it genuinely matters.

A lot of his success has been built around one horse in particular. Haas Boy has won 4 of the 7 races the pair have tackled together, and that kind of record speaks to a real understanding between trainer and horse. When you see the same combination clicking at that rate, it usually means the trainer knows exactly how to get the best out of that animal — the right races, the right preparation, the right moment to run. Williams clearly has that feel with Haas Boy.

His go-to jockey is Harry Cobden, one of the most respected riders in jump racing, and that partnership has produced 4 winners from 14 rides together — roughly 1 in every 3 and a half races. That's a productive relationship by any measure, and it's the kind of alliance that tends to deepen over time as both parties learn what works. Williams has also found a reliable hunting ground at Wincanton, where he has sent out 3 winners from just 8 runners, and he is particularly sharp when conditions are wet or muddy — 7 of his 10 winners have come on softer ground, winning at a rate of 39%, or nearly 2 in every 5 races in those conditions.

For a trainer not yet a year into the job, this is a profile that reads like someone well into their stride. Whatever comes next, Chester Williams has already shown he belongs at the top table.