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The Final Build: A Candid Conversation with Conner Mantz 9 Weeks Before His American Record Attempt At The 2025 Chicago Marathon

What do you do after running 2:05 at the Boston Marathon? If you’re Conner Mantz, you get back to work.

The American half-marathon record holder (59:17 in Houston) and the fastest American ever on Boston’s storied marathon course (2:05:08) is locked in on Chicago this fall.

Earlier in 2024, Conner made his Olympic debut in Paris, where he delivered a gutsy, top-10 finish in brutal conditions—proving he belongs on the biggest stage in the sport.

Coached by Ed Eyestone and training at altitude in Provo, Utah, Conner is building toward another breakthrough. His summer block has been quietly…

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