Odds on Love — Maysie Greig

Vina was sure Tony Letheridge loved her, and since she thought it was only her wealth that kept him from proposing, she talked him into agreeing to marry her if her horse, Sawdust, outran Tony's own entry, Jupiter, in the English Derby. Vina had not realized how completely Tony had fallen in love with Tania, a girl as red-headed, poor, and proud as himself.