Various shots of trainers breaking in yearling, first with bridle, then saddle and finally rider. Several shots of two year old horses running on training track, owners timing them, spring, some snow in evidence. CS of chronometer. Several MSs of three year old stallions running around in snow-covered yard, "Canadian Champ", "Queen's Own", "Censure", "Navy Page". Various shots of two year old horses running on training track, trainers timing them, summer. Various shots of two year old horses practicing at starting gate.