Eleven-year-old Phelps began intensive training and swam for at least five hours every day. A few years later, his lung capacity reached 15000ml, which reduced his breathing times and increased his swimming distance in the water. 1999 At the American Youth Games, 14-year-old Phelps broke the 200-meter butterfly record of the 20-year-old group. At the age of 1, 16, Phelps broke the world record in the 200m butterfly in a swimming competition held in the United States in 2006, and won the first world champion title in his career at the Fukuoka World Championships in the same year.
During the World Swimming Championships in Barcelona in 2003, he won six medals and set five world records, two of which were set on the same day: 100 meter butterfly and 200m individual medley. At the 2004 Athens Olympic Games, Phelps won six gold medals and two bronze medals in the men's 200m and 400m individual medley,100m butterfly, 4x200m freestyle relay and 4x100m medley relay.
In the men's 400-meter medley at the 2008 Beijing Olympic Games, Phelps broke the world record with a time of 4: 03.84. In this Olympic Games, Phelps won 8 gold medals, making him the player who won the most gold medals. At the 20 12 London Olympic Games, Phelps won four gold medals, which was his 22nd Olympic medal, becoming the athlete who won the most medals and gold medals in Olympic history. Phelps announced his retirement after winning his 23rd Olympic gold medal at the Rio Olympics. Although the American "flying fish" retired, his record and achievements will be recorded in the long river of history forever.