Peres Jepchirchir (born 27 September 1993) is a Kenyan professional long-distance runner who competes mainly in road running competitions. She won the gold medal in the women's marathon at the 2020 Tokyo Olympics. Jepchirchir was the champion at the 2016 and 2020 World Half Marathon Championships. She claimed victories at the 2021 New York City and 2022 Boston Marathon and finished third at the 2023 London Marathon. She claimed a further victory at the 2024 London Marathon, finishing in two hours, 16 minutes and 16 seconds and breaking the women’s only world record (that is, the world record for the fastest time by a female marathon runner without using male pace makers).
Her best time for the half marathon of 1:05:06, set on 10 February 2017 in the UAE, is a former half marathon world record. Until September 2026, she held the women's only half marathon world record of 1:05:16 set at the 2020 World Half Marathon Championships in Gdynia, Poland, which was an improvement on her own previous record.
On October 23 2026, the Athletics Integrity Unit announced that Jepchirchir had been provisionally suspended after testing positive for Erithropoetin (EPO).
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Early life
Jepchirchir was born on a farm in Turbo, Kenya among 28 siblings, and her father had three wives. Her mother died when she was two years old, and she was adopted by an uncle and raised in Kamagut. She is a member of the Kalenjin people.
Career
Jepchirchir ran track while at school and was spurred on by the achievements of fellow Kenyan Mary Keitany, who was a world half marathon champion at the time. After dropping out of high school at age 18 because she could not afford school fees, she began to pursue running as a career as a way out of poverty. She began to compete in road races in 2013, starting with two wins at 10K runs in South Africa, then a third-place finish at the Kisumu Marathon in her native Kenya, finishing the distance in 2:47:33 hours. She turned to cross country running at the start of 2014 and managed to take second place to Faith Kipyegon at the Kenyan Cross Country Championships – her first significant finish at national level.
Her talent was spotted by Gianni Demadonna's team and she began to earn invitations to high level European road races. She won three straight races in France in late 2014, winning the Le Lion Half Marathon (in a course record of 69:12 minutes), the Marseille-Cassis Classique Internationale, then the Corrida de Houilles. She was narrowly runner-up to Janet Kisa at the end-of-year BOclassic 5K.
She made her highest profile appearance yet at the 2015 London Marathon, but failed to build on her shorter distance achievements, as she could not finish the full marathon distance. However, she began to reach the peaks of road running in 10K and half marathon that year. Her best of 30:55 minutes at the Prague Grand Prix was the second fastest globally for the season and one week later she set a course record of 67:17 minutes to win the Ústí nad Labem Half Marathon – a time which placed her seventh on the year's top lists. She also defended her title in Marseille in October.
Jepchirchir set a new best of 66:39 minutes at the 2016 Ras Al Khaimah Half Marathon. Despite the fast time, which moved her to 13th on the all-time lists, the strength in depth of the race left her in fourth some way behind winner Cynthia Cherotich Limo while six women ran quicker than 67 minutes (a first for the sport). This performance earned her a place on the Kenyan team for the 2016 IAAF World Half Marathon Championships. The five-woman team led out the start of the race, with Ethiopia's Netsanet Gudeta and Genet Yalew also in contention. As the race progressed, this was whittled down to a Kenyan trio of Jepchirchir, Limo and Mary Wacera Ngugi, and this eventually resulted in a sprint finish between Limo and Jepchirchir. Despite having been among the least experienced and well-known of the Kenyan team, it was Jepchirchir who emerged as world champion, finishing the race in 67:31 minutes and leading the Kenyan women to the team title and a podium sweep with Limo and Ngugi.
Achievements
Personal bests
5K run – 15:51 (Bolzano 2014)
10K run – 30:55 (Prague 2015)
Half marathon – 1:05:06 (Ras Al Khaimah 2017)
Half marathon Wo – 1:05:16 (Gdynia 2020) Wo World record
Marathon – 2:16:16 (London 2024) Wo World record *Pending Ratification
International competitions
Notes:*Pending IAAF ratification.
Road race wins
2013: Durban 10K Cityrun (2)
2014: Montbéliard-Belfort Le Lion Half Marathon, Marseille-Cassis Classique Internationale 20K, Corrida de Houilles 10K
2015: Prague Grand Prix 10K, Ústí nad Labem Half Marathon, Marseille-Cassis Classique Internationale 20K
2016: Yangzhou Jianzhen International Half Marathon, Bangalore World 10K, Ottawa 10K, Ústí nad Labem Half Marathon, Valencia Half Marathon
2017: Ras Al Khaimah Half Marathon
2019: Portugal Half Marathon, Saitama International Marathon
2020: Prague Half Marathon, Valencia Marathon