Dark Side Thunder

The real story is Kempton Park. Dark Side Thunder has won three of five races at that track, a win rate of 60 percent, which suggests the horse either loves the course layout, the surface, or simply suits the type of races run there. That kind of specialization is valuable and worth watching for. Equally striking is the horse's affinity for soft, muddy ground: it has won four of eight races on wet conditions, a 50 percent win rate that stands out sharply against its overall record. This is the sort of pattern that makes a horse useful — it tells you exactly when to expect a better performance.

Jessica Macey's yard at Doncaster has sent out 13 winners this season, and Dark Side Thunder remains active in her string. The partnership with jockey Lewis Edmunds has been the most productive: Edmunds has ridden the horse to eight wins from 35 races together, a 23 percent win rate that significantly outpaces the horse's overall form. This suggests Edmunds understands how to get the best from Dark Side Thunder. However, the horse has not won in its last six races and last tasted success at Chelmsford on 4 December 2025 — a ten-month drought that hints at a decline in form or changing circumstances. At seven years old, Dark Side Thunder is approaching the age where consistent improvement becomes less likely, though horses can surprise.