No. 46 -- Eric Heiden ESPN SportsCentury : Season 1 Episode 6

Eric Heiden was an American long track speed skater, road cyclist and track cyclist. He won an unprecedented five individual gold medals, and set four Olympic records and one world record at the 1980 Winter Olympic Games. Heiden was the most successful athlete at those Olympic Games, single-handedly winning more gold medals than all nations except for the Soviet Union and East Germany.