Michael Phelps
2007 World championships

At the 2007 World Aquatics Championships, Phelps won seven gold medals, tying the record for a global long-course championship held by Mark Spitz since the 1972 Summer Olympics, and broke five world records. Phelps first gold medal came in the 4×100-meter freestyle. Phelps swam the lead-off leg in 48.42 seconds and Neil Walker, Cullen Jones and Jason Lezak each expanded the lead to win in a Championship record of 3:12.72, just missing the world record of 3:12.46 set the previous year. His lead-off time was faster than the winning time in the individual 100-meter freestyle final later in the meet. Phelps set his first world record in the Championships in the 200-meter freestyle, his second race. Phelps won the gold ahead of Pieter van den Hoogenband and broke Ian Thorpe 's six-year-old world record with a time of 1:43.86. For his third race, the 200-meter butterfly, Phelps won the gold and bettered his own world record of 1:53.71 with a time of 1:52.09. For his fourth race, the 200-meter individual medley, Phelps set his third world record with a time of 1:54.98, bettering his own world-record time of 1:55.84 For his fifth race, the 4×200-meter freestyle relay, Phelps swam the lead-off leg in 1:45.36 as the American team of Ryan Lochte, Klete Keller, and Peter Vanderkaay went on to win the gold medal and beat the previous world record set by Australia in 2001 with a time 7:03.24. For his sixth race, the 100-meter butterfly, Phelps edged out Ian Crocker 50.77 to 50.82 to win his sixth gold medal. For his seventh event, the 400-meter individual medley, Phelps won the gold medal in a world-record time of 4:06.22, more than 3.5 seconds ahead of Ryan Lochte. By winning seven gold medals, Phelps broke the record of six set by Ian Thorpe at the 2001 World Championships. The 4×100-meter medley relay team received a disqualification for a false start during a changeover in the heats, ending Phelps's chance of eight gold medals.

Even though Phelps competed in the backstroke in international competition only once (at the 2006 Pan Pacific Championships), he was among the best backstroke swimmers in the world. This is illustrated by his personal best times set in 2007, four months after the World Championships. At the US Nationals in Indianapolis on August 1, 2007, Phelps swam a 1:54.65 in the 200-meter backstroke, which was the third fastest of all time in the event, 0.33 of a second off the world record of 1:54.32 held by Ryan Lochte. Two days later Phelps swam a time of 53.01 sec in the 100-meter backstroke, 0.03 of a second short of the world record of 52.98 held by Aaron Peirsol and the second-fastest performance of all time. In 2007 Phelps swam into the all-time top three performances in seven individual events, four of these being world records.
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