The Canadian Derby is a Canadian Thoroughbred horse race run annually at the Century Mile Racetrack and Casino in Leduc County, Alberta. A Grade III event held in August, it is open to three-year-old horses and is raced on dirt over a distance of one mile and a quarter (10 furlongs). In 1956, Polo Park Racetrack was closed and the race was moved to Northlands Park in Edmonton, Alberta. In 2019, the race moved to its present location at the Century Mile Racetrack and Casino south of Edmonton.