Michael Phelps
Dawn Fraser
Stat by stat
Bars are scaled to the leader in this list.
The verdict
Michael Phelps leads 4 of 4 categories. Our all-time ranking places Michael Phelps at #1 and Dawn Fraser at #5.
The case for Michael Phelps
The most decorated Olympian in history across all sports. Phelps won 28 Olympic medals, 23 of them gold, over five Games from Sydney 2000 to Rio 2016, including a still-unmatched eight golds at Beijing 2008 that broke Mark Spitz's 1972 record of seven. He set 39 world records and claimed 26 world-championship titles. His range was staggering: Olympic gold in the 100m and 200m butterfly, the 200m and 400m individual medley, the 200m freestyle and a stack of relays. Coached by Bob Bowman, Phelps combined a huge wingspan, relentless training volume and famous racing nerve, touching out Milorad Cavic by 0.01 seconds in Beijing. No swimmer has matched his blend of longevity, versatility and championship hardware, and none is close on career gold medals.
The case for Dawn Fraser
The pioneering queen of sprint freestyle and one of the toughest competitors in the sport's history. Fraser became the first swimmer, male or female, to win the same event at three consecutive Olympics, taking the 100m freestyle at Melbourne 1956, Rome 1960 and Tokyo 1964. In 1962 she became the first woman to break 60 seconds for the 100m freestyle, and she set 27 individual world records across her career. She won eight Olympic medals (four gold, four silver) in an amateur era before the World Championships existed. Fierce and unruly, she was controversially banned for ten years after a flag-stealing prank in Tokyo, cutting short a career that might otherwise have yielded even more. Her three-in-a-row remains a landmark of durability.