The annual Tarmonbarry 3/4 Marathon, Half Marathon and 8km is on 4 October 2026 in County Roscommon.
Races start from Tarmonbarry village. Each race route is a one lap course, starting in the village, going out into the scenic quiet rural roads and finishing back in the village beside St. Barrys GAA clubhouse.
All events are AAI measured courses and are chip timed.