Kelvin Kiptum Cheruiyot was a Kenyan long-distance runner who held the marathon world record between 2023 and 2026. As of 2026, he still held two of the six fastest times running marathons in history, and was ranked first among the world's men's marathon runners at the time of his death. Kelvin Kiptum (Kenya) set the men's marathon world record of 2:00:35 in Chicago Marathon on October 8, 2023. It stood 2.5 years, until Sabastian Sawe's 1:59:30 on April 26, 2026. Wiki link