Conner Mantz, fastest American marathoner, returns to racing in New York. Mantz, 2:04:43 Chicago runner, recovers from stress fractures. He races twice this year, focusing on New York. Mantz faces Kipruto, Talbi, and other elite runners.

Mantz, Utah native, trained with Ed Eyestone at BYU. He won NCAA cross-country titles, signed with Nike in 2021. Mantz set American half-marathon record in 2025. He aims for full recovery before New York. Read more culture coverage.

Mantz broke American marathon record in Chicago. He led halfway, finished fourth. Mantz suffered stress fractures, missed World Cross-Country. He returned at Falmouth, then World Half-Marathon. Mantz aims for full health in New York. Related: Valencia Half Marathon Elite Start List Announced.

This original Runner World brief is based on reporting from Marathon Handbook. Visit the source for its complete reporting, context and any later corrections.