Phelps is another passionate American swimmer in the present world. He has showed his talent and skill to be accepted as a legend in the swimming history. He first appeared in the Sydney Olympic Games in 2000 at the age of 15, but he had to come back without any medal. However, in the 2004 Athens Olympic Games, he proved his talent and let the world realize that another great is coming. He ended the competition with 8 medals including 6 gold. He became the youngest world record holder in 2000 at the age of 15 years and 9 months while he broke the world record in 200 m Butterfly. He holds 4 world records now. His best events are Freestyle and Individual Medley. Phelps dominates in other swimming competitions like World Championship, Pan pacific Championship etc.