Jonah Koech

Jonah Koech Kipruto (born 12 December 1996) is a Kenyan-born middle-distance runner who represents the United States in international competitions. He specializes in the 800 meters and 1500 meters.

In the 800 meters, he qualified for the 2022 World Athletics Championships and 2022 NACAC Championships after finishing second at the 2022 USA Outdoor Track and Field Championships. In the 1500 meters, he won both the 2025 Rabat Diamond League and the 2025 USA Outdoor Track and Field Championships.

He competes for the Under Armour Mission Run team, based in Baltimore, Maryland. In 2015, as an 18-year-old freshman at the University of Texas at El Paso, Koech finished 11th at the 2015 NCAA Division I Cross Country Championships. In 2016, Koech finished 6th in the indoor mile and 6th in the outdoor 800m at the NCAA Division I Championships. He later transferred to Texas Tech in 2018, and became a U.S. citizen in 2019 after graduating and enlisting in the U.S. Army. On May 31, 2025, at the Kip Keino Classic in Nairobi, Koech improved his 800 meter personal best to 1:43.32.

On August 2, 2025, Koech won a national title over the 1500 meters at the 2025 USA Outdoor Track and Field Championships, finishing in a personal best time of 3:30.17, thus qualifying for the 2025 World Championships in Tokyo, Japan. Before the race, Koech stated that he was 75-percent healthy and was dealing with a hamstring issue.

On August 10, 2026 the United States Anti-Doping Agency announced that Koech had been suspended for 3 years when his biological passport showed atypical values consistent with blood doping. Koech admitted the violation. All his results after July 30, 2025 were disqualified, and his suspension was dated from July 17, 2026 through July 2029.

Achievements and titles

NCAA performances