- Became the youngest swimming world-record holder ever at age 15.
- In 2003, set five world records in one international meet.
- Claimed eight medals (six gold, two bronze) in his Olympic debut, the 2004 Games in Athens.
- Started the Swim with the Stars Tour (with Ian Crocker and Lenny Krayzelburg) after the 2004 Olympics to promote the sport.
- Won eight gold medals at the 2008 Olympics in Beijing, breaking fellow swimmer Mark Spitz's record for most first-place finishes in a single Games.
- In 2008, established the Michael Phelps Foundation, a nonprofit organization that promotes swimming and helps kids build healthy lives through the sport.
- Captured four gold and two silver medals at the 2012 Olympics in London, breaking the all-time record with 22 total Olympic medals.
- Retired following the 2012 Games, but returned to competition in May 2014.
- Is a two-time Associated Press Athlete of the Year (2008, 2012).
- With his qualification for the 2015 Olympics in Rio, became the first American male swimmer to make five Olympics; chosen as the flag-bearer for the Opening Ceremonies.
- Won six golds at the 2016 Olympics in Rio and was part of a three-way tie for silver in the 100m butterfly, bringing his total medal count to 28, with 23 of them gold.
- Has a street named after him in Baltimore.
- Fred Phelps — Father
- Debbie Phelps — Mother
- Whitney — Sister
- Hilary — Sister
- Nicole Michele Johnson — Fiancée
- Megan Rossee — Ex-significant Other
- Boomer Robert Phelps — Son
- Attended University of Michigan, Ann Arbor, Michigan, United States
- Birth Name: Michael Fred Phelps II
- Birth Place: Baltimore, Maryland, United States
- Profession: Swimmer
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