Diamond Jim

The standout moment of his career so far came at Haydock Park on 30 December 2025, which remains his only win to date. What's worth noting is that at the level he typically competes — broadly mid-tier races in Britain — he's actually won 1 from 3, a 33% win rate. That's a genuinely strong return at that grade, meaning when he lines up in those races, he wins roughly 1 in every 3. The overall record looks more modest than it really is because he's been tested at tougher levels too, which is usually a sign the team believes there's more to come.

He's trained by Oliver Greenall and Josh Guerriero out of their yard in Oldcastle, Cheshire — a partnership that has been in fine form this season, having sent out 42 winners already. That kind of volume matters: horses from busy, successful yards tend to arrive at the track fit, well-prepared, and race-ready. Diamond Jim is currently active and racing, so whatever comes next, he heads into it on the back of a team that clearly knows how to get horses winning.