In the last twelve months alone he has posted 44 winners from 494 rides, which works out at roughly 1 in every 11 — about 9%. That might not sound spectacular on paper, but sustaining that across nearly 500 rides in a single season is no small feat. Consistency at that volume is its own kind of skill, and it tells you this is a jockey who is keeping plenty of trainers happy enough to keep putting him back up.
His most important professional relationship is with trainer Iain Jardine, and the numbers back up just how central that partnership has become. Mullen has ridden 187 times for Jardine and come away with 17 winners — again around 1 in every 11, which matches his overall average almost exactly. What that alignment suggests is that Jardine knows how to place horses to suit Mullen's strengths, and Mullen knows the yard's horses well enough to get the best out of them. Seventeen winners from one trainer is a serious chunk of a jockey's working life.
Dig into the conditions and one detail stands out: on wet or muddy ground, Mullen wins roughly 1 in every 7 races — 14%, or 1 from 7 — noticeably better than his overall average. It's a small sample, but it hints at a jockey who may ride with more confidence and patience when the ground gets testing and the race slows down to suit a more tactical style.
Southwell is his most productive individual track, with 5 winners from 28 rides. That is a course built around an all-weather surface that rewards rhythm and timing rather than raw pace, and Mullen's record there suggests it suits his approach well. For his partnership with Free Pic — 1 win from 4 races together — the story is still being written, but it's a combination worth watching as that tally grows.
| Course | Races | Wins | Win rate |
|---|---|---|---|
| Newcastle | 132 | 13 | 9.8% |
| Musselburgh | 58 | 5 | 8.6% |
| Hamilton Park | 47 | 7 | 14.9% |
| Ayr | 41 | 2 | 4.9% |
| Southwell | 28 | 5 | 17.9% |
| Ripon | 26 | 1 | 3.8% |
| York | 22 | 0 | 0% |
| Carlisle | 21 | 3 | 14.3% |
| Thirsk | 19 | 1 | 5.3% |
| Catterick Bridge | 17 | 0 | 0% |
| Redcar | 15 | 1 | 6.7% |
| Haydock Park | 13 | 1 | 7.7% |
| Chester | 12 | 2 | 16.7% |
| Pontefract | 12 | 2 | 16.7% |
| Wolverhampton | 11 | 1 | 9.1% |
| Beverley | 4 | 0 | 0% |
| Doncaster | 4 | 0 | 0% |
| Wetherby | 4 | 0 | 0% |
| Windsor | 3 | 0 | 0% |
| Lingfield Park | 3 | 0 | 0% |
| Goodwood | 1 | 0 | 0% |
| Nottingham | 1 | 0 | 0% |