I would say 8 olympic golds at the Beijing Olympic Games is his biggest achievement to date. Answer: It would have to be almost winning the 4x100 meter frestyle relay in Beijing Olympic Games.
winning 8 gold medals at the Beijing olympic games.
He's the best in the world at several events but his best is the 200 meter Butterfly.
Michael Phelps Michael Phelps
Michael Phelps. he has the most Olympic metals
Michael Phelps DUHHH
Michael Phelps
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Michael Phelps is the athlete that has won the most Olympic medals in history to date. He is the youngest of three children. His father is Michael Fred Phelps and his mother is Deborah Sue Phelps. He has two sisters called Whitney and Hilary.
michael phelps
Butterfly
Michael Phelps.
Michael Phelps
Michael Phelps
Most People think of Michael Phelps as a great American swimmer in the 2008 Olympics.