Mathoura

As a daughter of Calyx out of an Iffraaj mare, Mathoura comes from a family built for speed with a hint of stamina underneath. Calyx was one of the most exciting two-year-olds in recent memory before injury curtailed his racing career, and he's beginning to make a real name for himself as a sire. Iffraaj, her mother's sire, similarly threw horses that could quicken and stay — so Mathoura has decent raw material on both sides of her pedigree.

Harrington has spoken warmly about her, describing her as a really nice filly who'll start over a mile and get further as the season progresses. That last part is worth noting — a trainer who says a horse will "get further" is essentially telling you this isn't a sprinter built for one sharp burst. She's expected to develop, to improve as the trips increase, which usually means there's more to come after the first run. Debut day, then, is less about winning and more about learning.