Chicago Marathon Preview Show: Conner Mantz Record Attempt | Kiplimo & Korir Chase History

Live show before the 2025 Bank of America Chicago Marathon. Defending champ John Korir is the 1B to Sabastian Sawe's 1A in the world of marathoning right now. Can he win his third straight major in Chicago or will half marathon WR holder Jacob Kiplimo break through to win his first? What about Galen Rupp's chances