Athlete
Michael Phelps
American swimmer, most decorated Olympian (23 gold medals)
All evidence
1 record, newest first. Strength changes with age and weight class, so check the date and context before you compare.
2016
- Squat300 lb × 3
“is a savage in the weight room right now, and is squatting more than 300 pounds three times.”
Strength coach Keenan Robinson to Yahoo's Pat Forde, reported by Swimming World 13 Jan 2016, before the Rio Olympics. 'More than 300' means 300 is a floor.