That Newmarket record deserves a closer look. On consecutive days in October 2025 — the 10th and the 11th — Soumillon won a top-level race at the same track. Back-to-back Class 1 victories at one of Britain's most prestigious courses is the kind of form that gets people talking. It is not a coincidence; it is a jockey in the kind of rhythm that makes trainers reach for the phone.
His current season tells a clear story of improvement. Last year he was winning roughly 1 in every 17 races. This year that figure has risen to 1 in every 10 — 8 winners from 79 rides — which represents a significant step forward. The raw numbers are modest, but the quality is what stands out: those 8 wins this season are all at the top level.
The partnership with trainer A P O'Brien is where Soumillon has done his best work. Six wins from 31 rides together works out to roughly 1 in every 5, or about 19% — nearly double his overall season average. When a rider clicks with one of the most powerful yards in the sport at that kind of rate, it usually means something more than luck. O'Brien's horses demand precision and patience, and Soumillon is clearly delivering both.
There are also some useful patterns worth noting. On slightly soft ground — when the weather has taken the edge off a fast track without making it a real slog — he wins 2 from 9 races, around 1 in 4. And at Leopardstown, he has won 3 from just 7 rides, which is a remarkable return at a track that regularly hosts the best horses in training. Some jockeys simply read certain courses better than others, and Leopardstown appears to suit Soumillon's style very well. Four years in, the trajectory is pointing sharply upward.
| Course | Races | Wins | Win rate |
|---|---|---|---|
| Ascot | 11 | 1 | 9.1% |
| chantilly | 9 | 1 | 11.1% |
| Goodwood | 9 | 0 | 0% |
| sha_tin | 9 | 0 | 0% |
| Leopardstown | 7 | 3 | 42.9% |
| The Curragh | 7 | 0 | 0% |
| Newmarket | 6 | 2 | 33.3% |
| Doncaster | 6 | 0 | 0% |
| saint-cloud | 3 | 0 | 0% |
| meydan | 3 | 0 | 0% |
| Newbury | 2 | 0 | 0% |
| Sandown Park | 2 | 0 | 0% |
| Haydock Park | 2 | 0 | 0% |
| Epsom Downs | 2 | 0 | 0% |
| abu_dhabi | 1 | 1 | 100% |