As a miler, Gunsynd won five out of six races he took part in, being beaten narrowly by Triton in the 1972 Epsom Handicap carrying a top-weight. He also won the prestigious 1972 Cox Plate. He was sent out 4:1 second favorite and top weight of 60.5 kg for the 1972 Melbourne Cup in which he ran third to Piping Lane.
Gunsynd was always a favorite with the crowds due to his beautiful grey appearance, and because of his tremendous will to win. His great record is 54 starts for 29 wins, 7 seconds, 8 thirds and A$280,455 in prizemoney. He was arguably the best grey galloper in Australian history.
Retired to Kia Ora Stud when his racing days were over, he was less than successful but did sire Ammo Girl, dam of champion racemare Emancipation.
Suffering from cancer, Gunsynd was humanely euthanized at age 16. A statue of the great horse has been erected in the main street of his 'hometown' Goondiwindi in his memory. In 2004, he was the only animal named to the Queensland Icons list.