The most decorated athlete in Olympic history, American swimmer Michael Phelps now has a record 25 career medals. Phelps was just 15 years old when he made his Olympic debut, at the 2000 Games in Sydney. Though he didn't medal in Australia, the young Phelps put the world on notice with a fifth-place finish in the 200-meter butterfly final.
Phelps would go on to win eight medals at the 2004 Athens Olympics, eight in Beijing in 2008 and six in London in 2012. He has three in Rio through Tuesday.
Athens 2004
Aug. 14
400-meter medley – GOLD – 4:08.26 (world record)
Aug. 15
4x100 freestyle – BRONZE – 3:14.62 (with Ian Crocker, Neil Walker, Jason Lezak)
Aug. 16
200 freestyle – BRONZE – 1:45.32
Aug. 17
200 butterfly – GOLD – 1:54.04 (Olympic record)
4x200 freestyle – GOLD – 7:07.33 (with Ryan Lochte, Peter Vanderkaay, Klete Keller)
Aug. 19
200 medley – GOLD – 1:57.14 (Olympic record)
Aug. 20
100 butterfly – GOLD – 51:25 (Olympic record)
Aug. 21
4x100 medley – GOLD – 3:30.68 (Phelps swam in heats, did not swim in final)
Beijing 2008
Aug. 10
400 medley – GOLD – 4:03.84 (world record)
Aug. 11
4x100 freestyle – GOLD – 3:08.24 (world record, with Garrett Weber-Gale, Cullen Jones, Jason Lezak)
Aug. 12
200 freestyle – GOLD – 1:42.96 (world record)
Aug. 13
200 butterfly – GOLD – 1:52.03 (world record)
4x200 freestyle – GOLD – 6:58.56 (world record, with Ryan Lochte, Rickey Berens, Peter Vanderkaay)
Aug. 15
200 medley – GOLD – 1:54.23 (world record)
Aug. 16
100 butterfly – GOLD – 50.58 (Olympic record)
Aug. 17
4x100 medley – GOLD – 3:29.34 (world record, with Aaron Peirsol, Brendan Hansen, Jason Lezak)
London 2012
July 29
4x100 freestyle – SILVER – 3:10.36 (with Nathan Adrian, Cullen Jones, Ryan Lochte)
July 31
200 butterfly – SILVER – 1:53.01
4x200 freestyle – GOLD – 6:59.70 (with Ryan Lochte, Conor Dwyer, Ricky Berens)
Aug. 2
200 medley – GOLD – 1:54.27
Aug. 3
100 butterfly – GOLD – 51.21
Aug. 4
4x100 medley – GOLD – 3:29.35 (with Matt Grevers, Brendan Hansen, Nathan Adrian)
Rio 2016
August 7
4x100 freestyle – GOLD – 3:09.92 (with Caeleb Dressel, Ryan Held, Nathan Adrian)
August 9
200 butterfly – GOLD – 1:53.36
4x200 freestyle – GOLD – 7:00.66 (with Conor Dwyer, Townley Haas, Ryan Lochte)