What makes Mullen particularly interesting right now is his recent form. Over the last two weeks he has won 2 from 11 rides — an 18% hit rate compared to his season average of 8%. That is more than double his usual return, and it suggests a jockey in real rhythm, getting the best out of horses at a crucial point in the season.
His most important professional relationship is with trainer Iain Jardine, and the numbers tell a quietly impressive story: 14 wins from 192 races together, winning about 1 in every 14 rides. That volume of shared experience — nearly 200 races — means the two have developed a genuine working understanding, the kind that only comes from time spent in the saddle together.
The partnership that really catches the eye, though, is with Yorkshire Glory. Six wins from just 12 races together is a remarkable record — that is 1 in every 2, and it suggests an almost instinctive connection between horse and rider. When a jockey wins half his races on a particular horse, something is clearly clicking.
Mullen also has specific strengths worth noting. On wet or muddy ground he wins roughly 1 in every 7 races — well above his overall average — which marks him out as a jockey who handles tricky conditions rather than just tolerating them. At Chester, one of Britain's most technical tracks with its tight turns and unforgiving layout, he has won 3 from 15 races. Chester sorts out jockeys quickly, and those who thrive there tend to be the ones with real tactical intelligence. After four years and nearly 200 winners, Mullen is clearly one of those.
| Course | Races | Wins | Win rate |
|---|---|---|---|
| Newcastle | 123 | 11 | 8.9% |
| Musselburgh | 57 | 5 | 8.8% |
| Hamilton Park | 52 | 9 | 17.3% |
| Ayr | 42 | 1 | 2.4% |
| Carlisle | 22 | 1 | 4.5% |
| Southwell | 20 | 3 | 15% |
| York | 18 | 0 | 0% |
| Chester | 15 | 3 | 20% |
| Ripon | 15 | 0 | 0% |
| Wolverhampton | 14 | 1 | 7.1% |
| Redcar | 13 | 2 | 15.4% |
| Catterick Bridge | 13 | 0 | 0% |
| Pontefract | 12 | 1 | 8.3% |
| Haydock Park | 12 | 0 | 0% |
| Thirsk | 11 | 1 | 9.1% |
| Beverley | 7 | 0 | 0% |
| Doncaster | 6 | 0 | 0% |
| Lingfield Park | 5 | 0 | 0% |
| Wetherby | 3 | 0 | 0% |
| Windsor | 3 | 0 | 0% |
| Leicester | 1 | 0 | 0% |
| Goodwood | 1 | 0 | 0% |