Chicago Marathon 2025. An American Record

It was a day for chasing records at the Chicago Marathon. 0:00 intro 0:05 pre race 1:29 start 2:04 mile 1.5 2:47 mile 2.5 4:55 mile 7 5:27 mile 9 6:17 mile 13 8:08 mile 17 10:29 mile 19 11:28 mile 25 11:52 finish line John Korir called his shot back in April, the day after winning the Boston Marathon. Conner Mantz wanted to go after the American Record (he ran faster than the record previously but it was on a record-...