Erriyon Knighton

Career Junior career Erriyon Knighton started participating in track and field in 2019 as a freshman at Hillsborough High School in Tampa, Florida. During his time there, he ran the second fastest time over 200 meters for an under-18 athlete in world history, clocking 20.33 seconds in the final at the 2020 USA Track & Field Junior Olympics in Satellite Beach, Florida. He also played for Hillsborough's football team as a wide receiver; rated a four-star recruit by 247Sports.com, he received scholarship offers from schools including Alabama, Auburn, Florida State, and Florida.

2021 At age 16 in January, Knighton signed a sponsorship deal with Adidas in his junior year of high school, forgoing his remaining two years of amateur competition at Hillsborough High.

On May 31, the 17-year-old set the world under-18 best in the boys' 200 meters in a time of 20.11 seconds, breaking Usain Bolt's best by two hundredths of a second. At the US Olympic Trials he would improve that time to 20.04 s in the first round on June 25, and then again to 19.88 s in the semi-finals the following day, breaking Bolt's world U20 record by five hundredths of a second. He then improved his own record to 19.84 seconds in the final on June 27, qualifying for the postponed 2020 Tokyo Summer Olympics.

At the Tokyo Games, Knighton became the youngest male to represent the United States in track and field since Jim Ryun in 1964. On August 3, he finished first in his 200-meter Olympic semi-final heat and qualified for an automatic spot in the final to be run the next day. In the final he finished in fourth with a time of 19.93 seconds. He achieved 19.69 s at the USA Outdoor T&F Championships in June. Knighton later on went on to place third in the event at the 2022 World Athletics Championships, in Eugene, USA, becoming the youngest ever individual sprint medalist in Championship history. He also became the youngest winner of a Diamond League race with his 200 m victory on September 2 in Brussels.

2023 On July 9, 2023, in Eugene during the USA Outdoor T&F Championships, he won his first senior national title by triumphing in the 200 meters with a time of 19.72 seconds.

At the 2023 World Athletics Championships in Budapest in August, Erriyon Knighton once again stood on a world podium by finishing second in the 200 m final with a time of 19.75 seconds. He was once again beaten by Noah Lyles, who won comfortably with a time of 19.52 seconds.

At the end of the season in September, he finished third in the 200 m final of the Diamond League in Eugene with a time of 19.97 seconds.

Erriyon closed his last season as a junior with 18 times under 20 seconds in the 200 meters, with his top 10 times occupying the 10 best U20 performances of all time in the 200 meters.

2024 He started his season with a 200m indoor race in Liévin, France, where he won in a time of 20.21 seconds.

On March 26, Knighton was provisionally suspended by the US Anti-Doping Agency (USADA) after testing positive for a metabolite of the anabolic steroid trenbolone. In June the USADA accepted Knighton's explanation that the source of the trenbolone was contaminated meat and ruled that he bore "no fault or negligence" for the positive test. He therefore received no sanction.

At the US Olympic trials, he placed third in the 200 m with a time of 19.77 seconds, qualifying for the 2024 Summer Olympics in Paris. During the Olympic Games, Knighton recorded times in the 200m of 19.99 in the heats and 20.09 in the semi-final. In the final, Knighton finished in fourth place with a time of 19.99 seconds.

In early August, after the Olympics ended, the Athletics Integrity Unit launched an appeal with the Court of Arbitration for Sport (CAS) against United States Anti-Doping Agency's decision regarding Knighton's positive drug test.

2025 He participated in 2025 USA Outdoor Track and Field Championships, placing fifth in the 200m, with a time of 19.97 seconds.

On September 12, 2025, CAS overturned the USADA decision that Knighton bore "no fault or negligence" for the positive test in 2024 and instead issued him with a four-year ban set to expire in July 2029. CAS accepted appeals from World Athletics and WADA that the evidence for contaminated meat "fell short of the required proof of source" and was "statistically impossible". His results from 26 March 2024 to 12 April 2024 disqualified retroactively.

Achievements Information from World Athletics profile unless otherwise noted.

Personal bests

International competitions

Circuit wins Diamond League 2022 (200 m): Brussels Memorial Van Damme 2023 (200 m): Golden Gala (Florence), Bislett Games World Athletics Continental Tour 2022 (200 m): Gyulai István Memorial 2023 (200 m): Irena Szewinska Memorial 2024 (200 m): Zagreb Hanžeković Memorial

National championships Year Competition Venue Position Event Time Wind (m/s) Notes 2021 U.S. Olympic Trials Eugene, Oregon 3rd 200 m 19.84 +0.3 2022 USATF Championships Eugene, Oregon 2nd 200 m 19.69 −0.3 2023 USATF Championships Eugene, Oregon 1st 200 m 19.72 −0.1 2024 U.S. Olympic Trials Eugene, Oregon 3rd 200 m 19.77 +0.5 2025 USATF Championships Eugene, Oregon 5th 200 m 19.97 +0.2

Awards World Athletics Awards Rising Star (Men): 2021, 2022