The Breeders' Stakes is a Grade I stakes race for Thoroughbred race horses first run in 1889. Since 1959 it has been the third race in the Canadian Triple Crown for three-year-olds. Held annually in August at Woodbine Racetrack in Toronto, Ontario, the Breeders' Stakes follows the June running of the Queen's Plate and the July Prince of Wales Stakes.
At a distance of one-and-a-half miles, the Breeders' Stakes is the longest of the three triple Crown races and unlike the first two that are run on a dirt racetrack, the Breeders' Stakes is raced on turf.
In 2004, Catherine Day Phillips became the first woman trainer to win the Breeders' Stakes.