Nathan Ghar-jun Adrian is an American competitive swimmer and five-time Olympic gold medalist who formerly held the American record in the long course 50-meter freestyle event.
This article includes the world record progression for the 4×100 metres medley relay, and it shows the chronological history of world record times in that competitive swimming event. The 4×100 metres medley relay is a medley race in which each of four swimmers on a team swims a 100-metre leg of the relay, each swimming a different stroke, in the following sequence:
- Backstroke ;
- Breaststroke;
- Butterfly;
- Freestyle.
Michael Fred Phelps II is an American former competitive swimmer. He is the most successful and most decorated Olympian of all time with a total of 28 medals. Phelps also holds the all-time records for Olympic gold medals (23), Olympic gold medals in individual events (13), and Olympic medals in individual events (16). When Phelps won eight gold medals at the 2008 Beijing Games, he broke fellow American swimmer Mark Spitz's 1972 record of seven first-place finishes at any single Olympic Games. At the 2004 Summer Olympics in Athens, Phelps already tied the record of eight medals of any color at a single Games by winning six gold and two bronze medals. At the 2012 Summer Olympics in London, Phelps won four gold and two silver medals, and at the 2016 Summer Olympics in Rio de Janeiro, he won five gold medals and one silver. This made him the most successful athlete of the Games for the fourth Olympics in a row.
The men's 200 metre freestyle competition of the swimming events at the 1973 World Aquatics Championships took place on September 4.
The men's 100 metre breaststroke competition of the swimming events at the 1973 World Aquatics Championships took place on September 4.
The women's 100 metre breaststroke competition of the swimming events at the 1973 World Aquatics Championships took place on September 5.
The men's 400 metre individual medley competition of the swimming events at the 1973 World Aquatics Championships took place on September 5.
The men's 4 × 100 metre freestyle relay competition of the swimming events at the 1973 World Aquatics Championships took place on September 5.
The men's 400 metre freestyle competition of the swimming events at the 1973 World Aquatics Championships took place on September 6.
The men's 200 metre backstroke competition of the swimming events at the 1973 World Aquatics Championships took place on September 6.
The men's 200 metre breaststroke competition of the swimming events at the 1973 World Aquatics Championships took place on September 6.
The men's 200 metre butterfly competition of the swimming events at the 1973 World Aquatics Championships took place on September 6.
The men's 200 metre individual medley competition of the swimming events at the 1973 World Aquatics Championships took place on September 7.
The men's 4 × 200 metre freestyle relay competition of the swimming events at the 1973 World Aquatics Championships took place on September 7.
The women's 4 × 100 metre freestyle relay competition of the swimming events at the 1973 World Aquatics Championships took place on September 8.
The men's 100 metre butterfly competition of the swimming events at the 1973 World Aquatics Championships took place on September 8.
The men's 1500 metre freestyle competition of the swimming events at the 1973 World Aquatics Championships took place on September 8.
The men's 100 metre freestyle competition of the swimming events at the 1973 World Aquatics Championships took place on September 9.
The men's 4 × 100 metre medley relay competition of the swimming events at the 1973 World Aquatics Championships took place on September 9.
Caeleb Remel DresselOLY is an American professional swimmer who specializes in freestyle, butterfly, and individual medley events. He swims representing the Cali Condors as part of the International Swimming League. He won a record seven gold medals at the 2017 World Aquatics Championships in Budapest, nine medals, six of which were gold, at the 2018 World Swimming Championships in Hangzhou, and eight medals, including six gold, at the 2019 World Aquatics Championships in Gwangju. Dressel is a seven-time Olympic gold medalist and holds world records in the 100 meter butterfly, 50 meter freestyle, and 100 meter individual medley.
