Ireland
Triathlon Calendar Ireland 2026-2027
Monthly updates for Ireland
Get new running races (and updates) in your inbox every month.
Explore the best triathlons in Ireland for 2026-2027! Our updated list features 9 exciting races across the country. Find your next race in Ireland below and join the running community at these great events! Search for a location or view races near , , , , or .
October 2026
A coastal multisport challenge in Dunfanaghy with two race options and the new Lady Isabella trail on the grounds of Ards Friary, organised as a youth fundraiser.
November 2026
Experience the beauty of County Mayo with the Westport Sea 2 Summit adventure race featuring road running, cycling, and a hike up the iconic Croagh Patrick.
May 2027
Multisport weekend at Lough Cutra Castle in County Galway featuring triathlon, duathlon, aquabike, aquathlon, open-water swims and run races across multiple distances.
June 2027
TriAthy returns for its 19th edition on 5 June 2027 at Barrow Quay, Athy, offering multiple triathlon formats including the TA-100, Olympic, Sprint and Try races.
Two Connemara adventure races on 12/06/2027: a 68 km run-bike-kayak including Croagh Patrick summit and a 34 km run-bike route finishing in Westport.
Monthly updates for Ireland
Get new running races (and updates) in your inbox every month.
July 2027
Half distance triathlon in Waterville on July 10, 2027 featuring a one lap bike through Coomaciste, Sneem, Ballaghbeama and Ballaghisheen and a four lap coastal run.
A 65 km adventure combining a 1 km kayak on Lough Ennell, 41 km of cycling and a 10 km run over Croghan Hill with obstacles and a 770 ft climb.
A multi-sport weekend on 31 July and 1 August 2027 offering running, cycling and swimming events from 10 km runs to Olympic and half-Iron distances.
August 2027
A three-discipline endurance event featuring a swim in the Lakes of Killarney, a full Ring of Kerry cycle and a marathon through Killarney National Park.
