The partnership with trainer Charlie Appleby is where Buick really shines. From 219 races together, they have combined for 68 wins — a win rate of 31%, or almost one in every three rides. In a sport where even the best jockey-trainer combinations rarely sustain that kind of return, it speaks to a rare working relationship built on trust and a shared understanding of how to get the best out of a horse.
Two things stand out beyond the raw numbers. First, his record in wet or muddy conditions is extraordinary: 15 wins from just 32 races, which works out at 47% — nearly one in every two. Most jockeys and horses struggle when the ground turns soft and heavy; Buick seems to relish it. Second, Kempton Park has become almost a private hunting ground. Fourteen winners from 29 races there — close to one in every two — suggests he reads that particular track unusually well. He was back in the winner's enclosure at Kempton as recently as 1 December 2025, a reminder that this is not a historical quirk but an ongoing pattern.
October 2025 brought a sharp reminder of his ability on the biggest stage, when he won two Class 1 races at Newbury on the same afternoon. Doubling up at that level on a single card is the kind of afternoon that gets talked about in yards for weeks. For a general audience, the simplest way to put it is this: 141 top-level wins in four years of riding, with no sign of slowing down. William Buick is not a rising talent to keep an eye on — he is already the finished article.
| Course | Races | Wins | Win rate |
|---|---|---|---|
| Newmarket | 106 | 30 | 28.3% |
| Newbury | 60 | 11 | 18.3% |
| meydan | 55 | 12 | 21.8% |
| Ascot | 53 | 9 | 17.0% |
| York | 39 | 9 | 23.1% |
| Goodwood | 38 | 2 | 5.3% |
| Sandown Park | 34 | 6 | 17.6% |
| Kempton Park | 29 | 14 | 48.3% |
| Haydock Park | 29 | 10 | 34.5% |
| Doncaster | 13 | 4 | 30.8% |
| Great Yarmouth | 12 | 5 | 41.7% |
| Epsom Downs | 7 | 2 | 28.6% |
| Nottingham | 6 | 1 | 16.7% |
| Salisbury | 5 | 2 | 40% |
| Chester | 5 | 0 | 0% |
| happy_valley | 4 | 1 | 25% |
| Leicester | 4 | 1 | 25% |
| Wolverhampton | 4 | 1 | 25% |
| The Curragh | 4 | 0 | 0% |
| Windsor | 3 | 0 | 0% |
| Newcastle | 2 | 2 | 100% |
| abu_dhabi | 2 | 1 | 50% |
| chelmsford | 2 | 1 | 50% |
| Southwell | 2 | 0 | 0% |
| Lingfield Park | 1 | 0 | 0% |
| Carlisle | 1 | 0 | 0% |