Pierre Brunet had a long competitive career, representing France from 1924-33, while skating both in singles and pairs. He skated pairs with Andrée Brunet-Joly and later married her. Together they won 10 consecutive French crowns in pairs skating (1924-33). In addition to their two Olympic pairs gold medals (1928, 1932), they were World Champions in 1926, 1928, 1930, and 1932, and runners-up in 1925. In 1932, the Brunets completed a Triple Crown by also winning the European Championships. Brunet was also the top French singles skater of his era, winning the French national title in 1924-25 and 1927-31. He competed at both the 1924 and 1928 Winter Olympics in singles, finishing 8th and 7th, respectively, and also placed 9th individually at the 1931 World Championships.
After their competitive careers ended, the couple settled in the United States where they skated in ice shows and coached skating, with Carol Heiss and Scott Hamilton among their pupils. The Brunets had a child, Jean-Pierre, one of the very few skaters to ever defeat Dick Button, but he died in a car accident when only 19-years-old.