 Fridfinnson was the rover for the Winnipeg Falcons, the Canadian team in the 1920 Olympics, and scored the winning goal in the game which decided the gold medal, a game the Canadians won 12-1.Fridfinnson was born in 1898 to Icelandic immigrants Jón Friðfinnsson and Anna Sigríður Jónsdóttir.He died in Selkirk, Manitoba.