Emma Grace Hurley achieved the fastest marathon debut by an American woman, finishing seventh at the Chicago Marathon with a time of 2:20:47. This surpasses Fiona O’Keeffe’s previous record set in February 2024.

Hurley, who had never raced beyond 25K, improved the record by 1:23. Her performance also marked the fastest marathon by an American woman since the Paris Olympics. Only Sara Hall has a faster personal best among American women. Read more racing coverage.

Hurley’s debut included a strong first half, running each 5K between 16:24 and 16:39. Despite a slower second half, she maintained her pace, finishing with a time of 1:10:57. This achievement positions her for future marathons, including the 2028 Olympic Marathon Trials. Related: Brigid Kosgei Targets Aggressive Split at Chicago Marathon.

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