The Ontario Derby is a Canadian Thoroughbred horse race run annually at the end of September/early October at Woodbine Racetrack in Toronto, Ontario. A Grade III stakes since 2006, it is open to three-year-old horses. Raced over a distance of 1⅛ miles (9 furlongs) on Polytrack synthetic dirt, the Ontario Derby offers a purse of $150,000.
Inaugurated in 1972 as the Colonel R. S. McLaughlin Handicap, the race was renamed the Ontario Derby for the 2003 running. Originally contested at 1³/ miles, it was changed to its current 1⅛ miles distance in 1992.
Read more about Ontario Derby: Records, Winners of The Ontario Derby