Career
2018
Chepng'etich won the women's only road race at the 40th Istanbul Marathon, a World Athletics Label Road Race. She ran 2:18:35, with split times of 31:59 at 10 km, 48:15 at 15 km, 1:08:22 at the half marathon mark, and 1:37:42 at 30 km. Chepng'etich's performance was a course record, the best performance ever on Turkish soil, and, at the time, was the seventh fastest time in history. In running this time Chepng'etich became the 10th athlete in history to break the 2:19 barrier, and the 30th in history to break the 2:20 barrier.2019
At the 20th Dubai Marathon, Chepng'etich set a new course record of 2 hours, 17 minutes and 8 seconds. On 28 September, she won the world title in the2020–2021
On 4 October 2020, she finished third in the2022
On 13 March, Chepng'etich clocked the second fastest ever women's only marathon time to win the Nagoya Women's Marathon in Japan, a World Athletics Elite Platinum Label race. In a new course record, she ran a negative split 2:17:18 with a 69:03 first half and a 68:15 second half. At the time, this was the joint seventh-fastest time in history, which gave her an 87 second margin of victory. She won $250,000, the biggest official prize in professional running up to that point. On 9 October, Chepng'etich successfully defended her Chicago title at the 2022 Chicago Marathon with a time of 2:14:18, a personal best by almost three minutes, then the second-fastest time in history, and just 14 seconds outside of compatriot Brigid Kosgei's then-world record of 2:14:04. Chepng'etich ran most of the race well under world record pace as she went out very fast with her first 10 miles clocked at 49:49. She ran the first half in 65:44 before running the second half much slower in 68:34. The win made her the first woman in history to break the 2:18 barrier on three separate occasions.Chepng'etich's split times in the 2022 Chicago Marathon
2023–present: Marathon world record
On 13 October 2024, at the Chicago Marathon, Chepng'etich set a new world record in the marathon, with a time of 2:09:56, breaking Tigst Assefa's previous world record of 2:11:53 by almost two minutes. In setting this record, she became the first woman to run faster than 2:11 and 2:10 in the marathon. Chepng'etich stated she dedicated her world record to compatriot and men's world record holder Kelvin Kiptum, who died in February 2024. Chepng'etich's world record was partially met with criticism and accusations of doping. Robert Johnson of LetsRun.com directly asked Chepng'etich her thoughts on the criticisms. The Kenyan National Assembly considered Johnson's question "disrespectful". Her improvement has been attributed to the use of a Maurten carbohydrate mix and the Nike Alphafly 3 shoe.Achievements
Personal bests
International competitions
National championships
* Kenyan Athletics Championships ** 10,000 metres: 2022 * Kenyan Cross Country Championships ** Senior women's race: 2023References
External links
* {{DEFAULTSORT:Chepng'etich, Ruth Living people 1994 births Kenyan female long-distance runners Kenyan female marathon runners Kenyan female cross country runners People from Rift Valley Province World Athletics Championships winners World Athletics Championships athletes for Kenya Athletes (track and field) at the 2020 Summer Olympics Olympic athletes for Kenya Chicago Marathon female winners