Chepngetich, already winner of the race last year, took the lead from the start and was able to hope throughout the race to break the world record before slowing down in the last kilometers and finishing in 2 hours, 14 minutes and 18 seconds. , just 14 seconds from the record also set in Chicago in 2019 by another Kenyan, Brigid Kosgei.
"I'm happy because I won the race and defended my title," Chepngetich said after his victory.
"I wanted to break the world record but I missed it a few seconds. But I want to have it, it was close and I will come back next year to sparkle."
American Emily Sisson came second in setting a new national record of 2:18:29, 43 seconds better than the previous one held by Keira D'Amato since the Houston Marathon in January.
Another Kenyan, Vivian Kiplagat finished 3rd in 2:20:52.
On the men's side, 2021 Boston Marathon winner Benson Kipruto secured victory late in the race to finish in 2:04:24, beating Ethiopian Seifu Tura by 25 seconds, Kenyan John Korir finishing 3rd in 2:05:01.
"I'm very happy with my victory today for two reasons. First, I win and second, it's my personal best," said Kipruto.
"It's a flat course and it's a beautiful city. They like to race and they encourage us throughout, that motivates us".
Kenyan Benson Kipruto wins the 44th Chicago Marathon (United States) on October 9, 2022. KAMIL KRZACZYNSKI AFP
More than 40,000 runners took part in this 44th edition.
© 2022 AFP