Conner Mantz Ends a 10-Month Layoff at the Falmouth Road Race

Conner Mantz, the fastest marathoner in American history, races for the first time in 10 months on Sunday, making his debut at the seven-mile Falmouth Road Race after a sacral stress fracture kept him out of the Boston Marathon in April.

Mantz has not competed since running 2:04:43 at Chicago in October, a run that took Khalid Khannouchi’s American record off the books after 23 years. The pain arrived three to four weeks later. “I had some hip pain, some back pain, and it ended up being a sacral stress fracture,” he told COROS in a July 30 interview. “I took longer than I’ve ever taken off.” He went back to running, put together a promising block, and the pain returned. He withdrew from Boston the week of the race.

Falmouth is a step toward a larger target. Mantz has said his next major goal is the World Half Marathon Championships in Copenhagen, and he told COROS he is looking forward to racing men who have broken 59 minutes for the distance. “How much faster can I run than Houston?” he said. His own best there, 59:17 in January 2025, is the American record.

He arrives with a short-road record that fits the course. He broke the Beach to Beacon 10K course record in 27:26 last August, and on Labor Day he ran 56:16 for 20K at New Haven, an American record, while winning the national title.

An American win at Falmouth would end a long wait. The race’s own year-by-year records list Leonard Korir in 2019 as the last American man to take the title. The race has doubled its bonus for American finishers this year, paying $1,000 to $5,000 to the top five Americans in each open division on top of the standard purse.

The opposition is deep. Amon Kemboi defends after running 31:12 last year, the second-fastest time in race history. Wesley Kiptoo, the 2023 champion, shares the course record at 31:08 with Gilbert Okari. Zouhair Talbi, fourth here last year, ran 2:03:45 for fifth at Boston, the fastest marathon by an American on that course. Habtom Samuel won the Beach to Beacon 10K on Aug. 1 in his first road race, and Ben Flanagan, a three-time champion, is back after raising $24,264 for charity by starting last in 2025.

The field has moved since it was announced. The Aug. 7 announcement named 18 elite men. The race’s own athlete roster now lists 11. Hillary Bor, Shadrack Kipchirchir, Frank Lara and Matt Richtman are among the announced entrants who no longer appear on it, while Graydon Morris and Peter Lynch appear on the roster but were not in the announcement. On the women’s side, Pamela Kosgei, who beat Elise Cranny by two seconds at Beach to Beacon, was added after the announcement. Toni Reavis first reported her entry.

Three of last year’s leading finishers appear on neither list. Melknat Wudu won the women’s race in 36:03, Daniel Romanchuk won the men’s wheelchair race in 21:35 for his sixth title, and Patrick Kiprop was second in the men’s race in 31:17.

The wheelchair division starts at 7:40 a.m. Eastern, the elite women at 7:50 a.m. and the elite men at 8 a.m., over seven miles from Woods Hole to Falmouth Heights.