Kiptum sets world marathon record in Chicago in 2:00:35, breaking Kipchoge’s mark

Kelvin Kiptum set a world record in the Chicago Marathon on Sunday, finishing in 2 hours, 35 seconds to shatter fellow Kenyan Eliud Kipchoge's old mark by 34 seconds. Sifan Hassan of the Netherlands also took advantage of cool and cloudy weather that's considered ideal for a marathon to win the women's race in 2:13:44 — the second-fastest ever for a woman at the 26.2-mile distance. Kiptum won the London Marathon in the spring in 2:01:25 and shaved almost a minute off the world record set last year in Berlin by Kipchoge, a two-time Olympic champion and the most successful marathoner ever.