The John C. Mabee Handicap is an American Thoroughbred horse race contested in early August at the Del Mar Racetrack in Del Mar, California. It is run on the turf for fillies and mares, age three or older, at a distance of one and one-eighth miles. Downgraded to a Grade II stakes in 2010, the John C. Mabee Handicap currently offers a purse of $200,000. Part of the Breeders' Cup Challenge series, the winner of the 2010 race automatically qualifies for the Breeders' Cup Filly & Mare Turf.