Conner Mantz became the fastest marathoner in the U.S., finishing fourth overall at the 2025 Chicago Marathon with a time of 2:04:43.
Canada's Rory Linkletter finished ninth overall with a new personal best of 2:06:49.
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.
Jacob Kiplimo won the Chicago Marathon in 2:02:23, moving to #7 all-time.
Author's summary: Conner Mantz sets new US marathon record.