Kelvin Kiptum destroys world marathon record in Chicago, running under 2:01

Kenya’s Kelvin Kiptum demolished the world marathon record Sunday in Chicago, becoming the first person to ever run under 2:01 in a record-eligible marathon. Here’s what you need to know:

Kiptum finished in 2:00:35. Eliud Kipchoge — who held the previous world record of 2:01:09 set in Berlin last year — ran 1:59:40 in a controlled race environment in 2019.
The 23-year-old Kiptum put his mark on the record-breaking performance with a 4:18 22nd-mile split, one of the fastest mile splits during a marathon in the event’s history, per LetsRun.
In the women’s race, Sifan…