John Korir broke free from the pack on Monday as the Boston Marathon climbed toward Heartbreak Hill, then kept pulling away to win in 2 hours, 1 minute, 52 seconds and smash the course record by 70 seconds.
Korir crossed the line with Alphonce Felix Simbu 55 seconds behind him and Benson Kipruto another three seconds back, a front-running finish that put his name beside his brother, Wesley Korir, as one of the only brothers to win the race.
The old mark of 2:03:02 had stood since Geoffrey Mutai set it in 2011, and Korir’s time now ranks among the sharpest performances ever on the course. He also opened a 40-second lead and peeked behind him as he passed through Kenmore Square with a mile to go, a small gesture that captured how far ahead he was of the field.
The race started in Hopkinton with frost on the ground and temperatures in the 30s, then warmed to 45 degrees at the gun, the coldest starting temperature since 2018. Clear skies and a slight tailwind had pointed to fast times from the start, and the men’s race delivered. Zouhair Talbi finished fifth in 2:03:45, the best time ever for a U.S. runner, while Sharon Lokedi led the women’s race through Mile 24.
Monday’s marathon also came with a few signs of how the event is changing. Organizers used a crowd scientist to help spread runners out on the narrow streets, and a new statue of Bobbi Gibb at the start became the first statue on the course honoring a woman.
The Boston Marathon, the world’s oldest and most prestigious annual marathon, has a way of turning weather into part of the race’s story. This year’s conditions were not the brutal kind Jack Fultz described from 1976, when he won in temperatures approaching 100 degrees, but they were still cold enough to make the opening miles feel sharp and brittle before the pace turned historic.
Korir’s win, and the record that came with it, gives Boston one more landmark performance to measure against the course standard that has defined the race for more than a decade. What comes next is whether anyone can come back and make Monday’s mark look ordinary.




