Chicago, Illinois — October 2025
Jacob Kiplimo of Uganda delivered a performance for the ages at the 2025 Bank of America Chicago Marathon, claiming victory in 2:02:23, a personal best by more than a minute and the seventh-fastest marathon time ever recorded.
The 24-year-old controlled the race from the halfway mark, pulling away from a deep field under ideal, cool conditions. His time cemented his place among the all-time greats and marked a defining moment in his transition from world half marathon champion to full marathon powerhouse.
Kiplimo crossed the halfway point in 1:01:00 alongside Kenya’s Amos Kipruto and Alex Masai, before decisively breaking away near the 20-mile mark. His smooth stride and consistent pacing carried him alone through the final miles to a dominant finish in Grant Park.
Amos Kipruto, 33, of Kenya, finished second in 2:03:54, while 27-year-old Alex Masai, also from Kenya, placed third in 2:04:37. The pair maintained strong pace throughout but were unable to match Kiplimo’s closing surge.
American runner Conner Mantz, 28, placed fourth in 2:04:43, breaking Khalid Khannouchi’s American record of 2:05:38, which had stood since 2002. Mantz’s result was one of the day’s standout performances, confirming his rise among the world’s elite.
Defending champion John Korir of Kenya withdrew from the race near the 20-mile mark, unable to continue after early signs of fatigue.
For Uganda, Kiplimo’s win represents a milestone in national running history. Already the world record holder in the half marathon (57:31, set in 2021), Kiplimo’s marathon breakthrough signals the emergence of another East African force capable of challenging Kenya and Ethiopia’s long-standing dominance.
“I felt strong and comfortable — like the rhythm was right from the start,” Kiplimo said after the race. “This was the perfect day, the perfect race.”
The Chicago course once again proved its reputation as one of the fastest in the world. In recent years, it has hosted landmark runs including Kelvin Kiptum’s 2:00:35 world record in 2023 and Brigid Kosgei’s 2:14:04 women’s world record in 2019.
Kiplimo’s 2:02:23 now joins that legacy — a time that underscores both his potential and his poise. It’s a statement of intent from an athlete who continues to redefine what’s possible on the road.