Trelewis
Triathlon Calendar near Trelewis 2026-2027
Monthly updates for Trelewis
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Trelewis for 2026-2027! We've gathered 10 exciting races in the area. Check out our detailed list below to find your next local race.
September 2026
Two day triathlon in the Brecon Beacons with a 2 mile seated SUP, 47 mile bike, 13 mile Pen y Fan hike and charity fundraising, limited to 30 places.
October 2026
A 400 m pool swim followed by a 5 km run on flat tarmac around Tonyrefail Park, held in October at Tonyrefail Leisure Centre.
Experience an end of season sprint triathlon in Porthcawl featuring a harbour swim, a multi lap town cycle, and a flat coastal run along the Bristol Channel.
March 2027
A duathlon at Margam Country Park combining trail runs around the castle and lake with rolling road bike courses featuring short climbs and fast flat sections.
May 2027
Sprint triathlon in Swansea waterfront with a 750 m dock swim, a flat 20 km closed-road bike over three laps, and a 5 km run; entry from £84.99.
Monthly updates for Trelewis
Get new running races (and updates) in your inbox every month.
June 2027
Middle distance triathlon at Parc Bryn Bach with a 1.2 mile lake swim, 60 mile bike and 13.1 mile three-lap run, plus Aquabike and relay options.
Pool based triathlon at Caldicot Leisure Centre with multiple distances, a traffic free grass cycle circuit, relay teams and a kids fun event.
July 2027
Race in Swansea Bay featuring a swim from Prince of Wales Dock, a flat coastal bike route onto the Gower Peninsula, and a run through Swansea city and waterfront.
A short swimrun at Clevedon Marine Lake combining about 6 km of running with 1 km of swimming, offered as full or half distances with individual and team entries.
A Clevedon sprint triathlon with a 750 m lake swim, a fast undulating bike loop and a 5 km seafront and trail run finishing at Salthouse Fields.