The trainer behind it all is Dianne Sayer, based at Hackthorpe in Cumbria — practically on Cartmel's doorstep. That local knowledge matters. Sayer's yard has sent out 15 winners already this season, which is a healthy return, and she clearly knows exactly when and where to place Sean Og to maximum effect. The first win at Cartmel came on 28 June 2024, and the most recent was just five weeks ago, on 25 May 2026 — so this is a horse still in form and still performing at the track it knows best.
Henry Brooke is the jockey most associated with Sean Og, and the two have built a decent partnership. Brooke has ridden the horse 11 times and won twice together — a win rate of 18%, or roughly 1 in every 5 rides. That puts him comfortably ahead of the horse's overall career average of 13%, which works out to winning around 1 in every 8 races across the board.
The broader career picture — 5 wins and 15 places from 38 races, mostly at Class 4 level — suggests a horse that competes honestly without ever threatening the top tier. Class 4 is solidly mid-table in the racing world, and 2 wins from 17 races at that level (12%) is perfectly respectable without being spectacular. But that's the point: Sean Og isn't a headline horse. It's a consistent, well-placed competitor with one genuine superpower. Recent form reads 4-1-4-7-6-2 — a fourth-place finish last time out, raced just yesterday, sandwiched around a win and a second in the previous five runs. The sharpness is still there. If you see Sean Og declared for Cartmel, take notice.
| Course | Races | Results | Last visited | Win rate |
|---|---|---|---|---|
| Cartmel Tight |
11 | 4 wins, 1 second, 3 thirds, 3 other | 28 Jun | 36.4% |
| Carlisle Undulating |
4 | 4 other | 22 Mar | 0% |
| Hexham Undulating |
3 | 1 second, 2 other | 11 Oct | 0% |
| Sedgefield Sharp |
3 | 1 second, 2 other | 20 Oct | 0% |
| Cork Galloping |
3 | 3 other | 20 Nov | 0% |
| Perth Galloping |
2 | 1 second, 1 other | 25 Sep | 0% |
| Kelso Undulating |
2 | 1 second, 1 other | 18 Sep | 0% |
| Sligo Sharp |
2 | 1 second, 1 third | 9 Jul | 0% |
| Catterick Bridge Sharp |
1 | 1 win | 25 Feb | 100% |
| Downpatrick Undulating |
1 | 1 other | 19 May | 0% |
| Tipperary Galloping |
1 | 1 other | 4 May | 0% |
| Listowel Sharp |
1 | 1 other | 19 Sep | 0% |
| Musselburgh Sharp |
1 | 1 other | 18 Feb | 0% |
| Clonmel Sharp |
1 | 1 other | 8 Dec | 0% |
| Punchestown Galloping |
1 | 1 other | 29 Nov | 0% |
| Haydock Park Galloping |
1 | 1 other | 20 Mar | 0% |