The filly was the best racehorse of her age and sex in Europe in 1982 when she won two Group One races: the Prix Robert Papin in France and the Cheveley Park Stakes in England.
Ma Biche was a big, powerful,[1] bay or brown mare, with white socks on her hind legs foaled in Kentucky in January 1980.
Her sire Key to the Kingdom was a half brother to Fort Marcy and was a Grade Three winner, taking the Stymie Handicap at Aqueduct Racetrack in 1974.
At Évry Racecourse she moved up in class and distance to win the Listed Prix La Flèche over 1400 metres, defeating a field which included the subsequent Santa Anita Handicap winner Interco.
On her final appearance of the season, Ma Biche was sent to England to contest the Group One Cheveley Park stakes over six furlongs at Newmarket Racecourse in October.
[1] On her three-year-old debut in early April Ma Biche won the Prix Imprudence on soft ground at Maisons-Laffitte, easily beating Dancing Display at odds of 2/5.
Ma Biche was retrained in the early stages by Freddy Head before moving up to take the lead inside the final furlong and winning by one and a half lengths from Royal Heroine, Favoridge and Habibti.