The class of race Mercurius Power usually enters — Class 5, one of the lower tiers of British racing — is where horses go to find winnable opportunities. And yet, even here, the record is modest: just 1 win from 20 attempts at that level, a 5% conversion rate. That single win came at Southwell in August 2024, now 21 months ago, and nothing has followed since. The six most recent runs read 5-3-3-6-6-7, which is the shape of a horse finding the line just out of reach — close enough to suggest interest, not close enough to cause celebration.
Lewis Edmunds has taken the ride more than anyone else, partnering Mercurius Power in 18 of its 54 races and winning twice together, a win rate of around 1 in 9 — which is actually above the horse's overall average, suggesting some real familiarity has built between the two. The trainer is Jessica Macey, whose yard in Doncaster has sent out 13 winners already this season, a sign that the operation knows what it's doing even when this particular horse isn't delivering.
What keeps Mercurius Power interesting is sheer presence. Raced just one day ago and still active at 8, this is a horse with serious mileage on the clock and no obvious signs of slowing down enough to stop. It won for the first time at Sandown Park in July 2022, which feels like a different era now, and the career has settled into a rhythm of near-misses and quiet contributions since. No fireworks, no dramatic comeback story — just a horse that competes, places more often than it wins, and keeps Macey's team busy. Sometimes that's the most reliable thing a yard has.
| Course | Races | Results | Last visited | Win rate |
|---|---|---|---|---|
| Newcastle Galloping |
19 | 2 wins, 3 seconds, 5 thirds, 9 other | 13 Apr | 10.5% |
| Southwell Galloping |
12 | 1 win, 1 second, 2 thirds, 8 other | 13 Mar | 8.3% |
| Doncaster Galloping |
4 | 4 other | 15 Sep | 0% |
| Sandown Park Galloping |
3 | 1 win, 1 second, 1 other | 21 Aug | 33.3% |
| Wolverhampton Galloping |
3 | 3 other | 6 Sep | 0% |
| Thirsk Galloping |
2 | 2 other | 16 Aug | 0% |
| Newmarket Galloping |
2 | 2 other | 18 Aug | 0% |
| Beverley Undulating |
2 | 2 other | 30 Jul | 0% |
| Chester Tight |
1 | 1 other | 8 Jul | 0% |
| Epsom Downs Undulating |
1 | 1 other | 29 Aug | 0% |
| Kempton Park Galloping |
1 | 1 other | 8 Jun | 0% |
| Leicester Sharp |
1 | 1 other | 9 May | 0% |
| Pontefract Undulating |
1 | 1 other | 24 Apr | 0% |
| Brighton Undulating |
1 | 1 other | 17 May | 0% |
| Newbury Galloping |
1 | 1 second | 21 Jun | 0% |