Sara Hall ran the second-fastest marathon ever by an American woman, clocking an unofficial 2:20:32 at The Marathon Project in Chandler, Ariz., on Sunday morning.
Hall, 37, chased Deena Kastor‘s 14-year-old American record of 2:19:36, running with four male pacers for most of the 26.2 miles on a 4.3-mile loop. Kenyan Brigid Kosgei holds the world record of 2:14:04, set in 2019.
Anesthesiology student Martin Hehir won the men’s race in an unofficial 2:08:59.
Full results are here. NBCSN airs coverage of The Marathon Project on Sunday night from 8-9:30 ET.