On Sunday morning at the 2025 Chicago Marathon, Utah’s Conner Mantz became the fastest marathoner in U.S. history, clocking 2:04:43.
Mantz had set his sights on breaking the American record before this marathon build—and he delivered, finishing fourth overall. In doing so, he not only smashed his previous personal best of 2:07:47 but also lowered Cam Levins’s North American area record to under 2:05.
The American record Mantz broke had stood for 23 years, previously held by former marathoner Khalid Khannouchi, who ran 2:05:38 at the 2002 London Marathon. Khannouchi was on hand in Chicago to witness his record fall and to present the award to the top American finisher.
Jacob Kiplimo wins the Chicago Marathon in 2:02:23 to move to #7 all-time.
Conner Mantz finishes 4th in 2:04:43 to crush the 23-year-old American record…and is congratulated by previous record holder Khalid Khannouchi just past the finish line. pic.twitter.com/fDi0VahuQ5
— Jonathan Gault (@jgault13) October 12, 2025
Uganda’s Jacob Kiplimo wins men’s race
In only his second marathon, Uganda’s Jacob Kiplimo claimed victory in 2:02:23. The 24-year-old flirted with the world record of 2:00:35 through 35 km but faded slightly in the final stretch as warmer, sunny conditions made for a tougher second half.
Kiplimo, the half-marathon world record holder, made his marathon debut at the 2025 London Marathon earlier this year, where he ran a Ugandan national record of 2:03:37 to finish runner-up to Kenya’s Sebastian Sawe. On Sunday, he lowered that Ugandan record once again, holding off 2024 Chicago champion John Korir and marathon veteran Amos Kipruto to break the tape.
Korir dropped out shortly after the 30 km mark, while Kipruto finished second in 2:03:54. Kenyan compatriot Alex Masai rounded out the podium in third with 2:04:37.
Canada’s Linkletter cracks top 10 with a personal best
Calgary’s Rory Linkletter ran a personal best of 2:06:49 to finish ninth overall in the men’s field. Linkletter went out aggressively, passing halfway in 62:20 alongside his former collegiate teammate Mantz, before falling off the pace around 30 km.
Rory Linkletter finishes 9th overall in a shiny personal best time of 2:06:49 👏
His time puts him 2nd on the Canadian all-time list only behind the national record of 2:05:36.
📸: @alnbrookes pic.twitter.com/gBYdUt2gFc
— Canadian Running (@CanadianRunning) October 12, 2025
His 2:06:49 ranks as the second-fastest time in Canadian history and marks his third consecutive top-10 finish at a marathon.
For full results from the 2025 Bank of America Chicago Marathon, see here.
