Ireland
Triathlon Calendar Ireland 2026-2027
Monthly updates for Ireland
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Explore the best triathlons in Ireland for 2026-2027! Our updated list features 13 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 .
August 2026
Breffni Challenge 2026 in Cavan on 1 August features running and cycling distances from 5 km to 100 km, redesigned shirts and medals, live music and charity fundraising.
Celtic Warrior on 1st and 2nd August 2026 is a multi-discipline weekend in Ireland offering runs, triathlons, duathlons and marathon options.
Experience a mix of trail running, cycling, and kayaking in Cloone, County Leitrim. This multi discipline event offers an adventure duathlon and obstacle based adventure races for both adults and junior participants.
Two distance triathlon on 15 August 2026 in Westport Co Mayo with Olympic and Super Sprint routes around Croagh Patrick Clew Bay and the Westport Greenway.
A half iron distance triathlon around Kenmare featuring a 1900 m swim, an 83 km bike over two category one climbs and a 21 km run that finishes in Kenmare town. The route passes Healy Pass, Caha pass and a short mountain tunnel.
Experience a long distance triathlon featuring a swim in the Lakes of Killarney, a cycle along the Ring of Kerry, and a marathon through Killarney National Park. This eco-friendly event offers both individual and relay entry options.
September 2026
Garda Triathlon 2026 on 2 September at Garda College in Templemore features a 500 m swim, a 15 mile cycle and a 3.5 mile run. Entries are open to individuals and three person relay teams with online registration only.
Sprint and Try A Tri races at Coosan Point, Athlone on 5 September 2026, with swims of 250m and 750m plus an 18km cycle.
Standard distance triathlon at Rosslare Beach with a sea swim supported by kayaks and boats, an open road bike course with safety zones, and a two loop run.
May 2027
Multisport weekend at Lough Cutra Castle in County Galway offering triathlon, duathlon, aquabike, aquathlon, swim and run events across a range of distances. The event includes open water swims, a festival village and on site camping.
June 2027
TriAthy 2027 is a triathlon in Athy, Co. Kildare on 5 June 2027 offering four race options, including the TA 100 with a 2 km swim, 80 km cycle and 18 km run.
A 68 km multi discipline adventure race in Connemara combining running, cycling and kayaking through Croagh Patrick, Killary Fjord and Westport on 12 June 2027.
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.
