Caitriona Jennings sets 100-mile world record in Illinois

In 2019, Jennings finished third in 6:24:12 at the Comrades Marathon, an 87K race, and has been focused primarily on ultrarunning in the years since.

WORLD RECORD: Donegal Olympian Caitriona Jennings set a women’s 100-mile world record when taking victory at the Tunnel Hill 100 in Illinois over the weekend, the 45-year-old clocking 12:37:14 to carve over five minutes off the previous record set by Camille Herron in 2017.

Donegal Olympian Caitriona Jennings set a women’s 100-mile world record when taking victory at the Tunnel Hill 100 in Illinois over the weekend, the 45-year-old clocking 12:37:14 to carve over five minutes off the previous record set by Camille Herron in 2017.

Jennings was making her debut at the 100-mile distance, having made a major splash elsewhere in the ultrarunning scene in recent years, setting Irish records at 50K (3:16:33) and 100K (7:43:01) and recording several top-10 finishes at the famed Comrades Marathon in South Africa.