Chicago Marathon Race Forecast

Chicago, IL • October 11, 2026

Conner Mantz Breaks 23-Year-Old American Record at 2025 Chicago Marathon

/Mantz ran 4:45 mile pace to break Khalid Khannouchi’s 2002 record by 55 seconds.

News

October 12, 2025

Conner Mantz Obliterates the 23-Year-Old American Record at the Chicago MarathonMantz ran 4:45 mile pace to break Khalid Khannouchi’s 2002 record by 55 seconds. https://www.runnersworld.com/news/a69001851/conner-mantz-american-record-chicago-marathon-2025/

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