
Caitriona Jennings set a new women’s 100-mile world record at the 2025 Tunnel Hill 100 Mile with a time of 12 hours 37 minutes and 4 seconds.
She eclipsed the previous record of 12:42:40, which was set by Camille Herron at the same event in 2017.
The Letterkenny AC Athlete set the current Irish 50k record in February 2025 at the Donadea 50k when she ran 3:16:33. The event served as the Irish 50k National Championships. She also holds the Irish 100k national record with a time of 7:43:01, set in 2021. In 2022, she won the International Association of Ultrarunners (IAU) 50k European Championships.