Breeding certainly counts!!
Just a few of the great race mares and broodmares who sired some of the top horses who WON the top races
Sylvia Hanover - Shyaway (dam of Western Hanover)
Antognoni S - Bouncing Bax (winner of over $400,000)
R Dutchess (DQ) - The Ice Duchess (1:51.1, $775,000)
Loua Dipa - Looks Good in a Romper (1:52.3H, $300,000+)
Emoticon Legacy - Emoticon Hanover (1:50.2, $1.8mm)
Apex- Mission Brief (1:50.2, $1.6mm; many still feel top female trotter EVER)
AND even though it was not a "feature race" on the card: Calico Jack Hanover - Charisma Hanover (1:49, $800,000)
So you can talk about the "gas" all you want, but you better be filling the tank of a Mercedes and not a Yugo.