A closer look at the lasting mark left by Michael Phelps—a timeline of influence.
Michael Phelps is the most decorated Olympian of all time, holding a record 28 medals. He boasts the most Olympic gold medals (23), individual gold medals (13), and individual medals (16). He tied the record of eight medals at the 2004 Athens Games, winning six gold and two bronze. In 2008, he broke Mark Spitz's record by winning eight gold medals at a single Olympics. He continued his success in London 2012, winning four gold and two silver, and Rio 2016, with five gold and one silver, making him the most successful athlete for the fourth consecutive Olympics.
In 1912, Otto Farr set a record in the 100 backstroke, which stood until 1926.
In 1926, Otto Farr's backstroke record, set in 1912, was broken.
In 1932, Ralph Flanagan was the youngest male to make a U.S. Olympic swim team before Michael Phelps in 2000.
In 1972, Mark Spitz set a record for gold medals won in a single Olympic Games, a record Michael Phelps tied in 2008.
In 1980, Eric Heiden set a record for individual gold medals at a single Games, a record that Michael Phelps tied in 2008.
In 1992, Vitaly Scherbo equaled the record set by Eric Heiden in 1980 for individual gold medals at a single Games, tying the record for individual gold medals at a single Games, a record that Michael Phelps tied in 2008.
In 2001, Ian Thorpe set a record of six gold medals at the World Championships, a record that Michael Phelps broke in 2007.
In November 2004, Michael Phelps was arrested for driving under the influence of alcohol in Salisbury, Maryland, leading to probation and community service.
After the 2008 Olympics, Michael Phelps established the Michael Phelps Foundation using his $1 million Speedo bonus, focusing on growing the sport of swimming and promoting healthier lifestyles.
Following the 2008 Summer Olympics, Michael Phelps started the Michael Phelps Foundation, focusing on growing the sport of swimming and promoting healthier lifestyles.
In February 2009, a photograph of Michael Phelps using a bong went viral, resulting in the loss of Kellogg's as a sponsor and a three-month suspension by USA Swimming.
In 2010, the Michael Phelps Foundation, along with the Michael Phelps Swim School and KidsHealth.org, developed and piloted the "im" program for Boys & Girls Club members, teaching children the importance of being active and healthy.
After the 2012 Olympics, Michael Phelps contemplated suicide, revealing the depth of his struggles with depression.
Following the 2012 Summer Olympics in London, Michael Phelps stated his intention to work more with his Foundation after retiring from competition.
In 2012, Michael Phelps concluded the London Olympics by winning his 18th career gold medal and 22nd overall in the 4x100-meter medley relay. He was the most successful swimmer of the meet for the third consecutive Olympics. FINA honored Phelps for being the most decorated Olympian ever.
In September 2014, Michael Phelps was arrested for driving under the influence of alcohol and speeding in Baltimore, resulting in a six-month suspension from USA Swimming.
Due to his DUI arrest in 2014, Michael Phelps was suspended from competing in the 2015 World Aquatics Championships, affecting the United States' performance in the 4 × 100 m freestyle relay.
In January 2018, Michael Phelps publicly revealed that he has struggled with both ADHD and depression.