Michael Phelps
Sarah Sjostrom
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 Sarah Sjostrom at #11.
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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 Sarah Sjostrom
The finest sprint and butterfly swimmer Europe has produced and a model of longevity. Sjostrom won the 100m butterfly at Rio 2016 in a world-record 55.48 that still stands, then reinvented herself as a freestyle sprinter, winning both the 50m and 100m freestyle at the Paris 2024 Olympics after an elbow injury that nearly ended her career. She has claimed three Olympic golds and around seven medals overall, together with roughly eight world-championship titles and world records in the 50m butterfly and 50m freestyle. First reaching a major final as a teenager in 2008 and still winning golds sixteen years later, Sjostrom's blend of explosive speed and career durability across two distinct specialties is almost unique in the sport.