The five-year-old has put together a solid career overall, winning 5 from 33 races — roughly 1 in every 6 — with a further 15 times finishing in the places. That means Merrimack has come home in the prize money in more than half of all its races, which is the mark of a consistent, reliable competitor. Its level — typically competing in Class 5, the bread-and-butter layer of British racing — suits it well, and it has banked 3 wins from 20 races at that level, a 15% win rate that shows it holds its own without dominating.
The partnership with jockey Marco Ghiani is worth noting. In 6 races together, they have won 2, a win rate of 33% — roughly 1 in every 3 rides. That is a strong number. When a horse wins a third of its races with one particular jockey, it suggests the two have found a rhythm, a way of working together that brings out the best in the horse.
Stuart Williams trains Merrimack out of Newmarket, the heartland of British flat racing. His yard has sent out 67 winners this season alone, which tells you this is an operation that knows what it is doing. The most recent win came at Chelmsford in January 2026, and recent form of 3-7-3-1-3-8 across the last six races shows a horse that has been competitive more often than not, even if the very latest run was a quiet day out. Merrimack raced just yesterday, so this is a horse that is very much in the thick of things — active, race-fit, and still hunting its next win.
| Course | Races | Results | Last visited | Win rate |
|---|---|---|---|---|
| chelmsford | 9 | 1 win, 3 seconds, 2 thirds, 3 other | 8 Jan | 11.1% |
| Kempton Park Galloping |
4 | 1 third, 3 other | 4 Mar | 0% |
| Brighton Undulating |
3 | 2 wins, 1 third | 7 Oct | 66.7% |
| Great Yarmouth Galloping |
3 | 1 win, 2 other | 17 Jul | 33.3% |
| Windsor Sharp |
3 | 1 win, 1 third, 1 other | 11 May | 33.3% |
| Goodwood Undulating |
2 | 2 other | 22 Aug | 0% |
| Lingfield Park Sharp |
2 | 2 other | 10 May | 0% |
| Nottingham Galloping |
1 | 1 other | 15 Jun | 0% |
| Epsom Downs Undulating |
1 | 1 third | 16 Aug | 0% |
| York Galloping |
1 | 1 other | 26 Jul | 0% |
| Newmarket Galloping |
1 | 1 second | 18 May | 0% |
| Newbury Galloping |
1 | 1 other | 3 Jul | 0% |
| Leicester Sharp |
1 | 1 other | 28 May | 0% |
| Sandown Park Galloping |
1 | 1 other | 17 Sep | 0% |