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.
October 2026
A 400m pool swim followed by a 5km flat tarmac run around Tonyrefail Park on 4 October 2026, with marshals, chip timing and accessible facilities.
Sprint triathlon and relay at Porthcawl Harbour with a 750 m swim, four lap bike and two lap coastal run; British Triathlon membership or race pass required.
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 city centre with a 750 m swim, 20 km bike (three laps) and 5 km run on a flat, largely closed and marshalled waterfront course.
June 2027
A middle distance triathlon at Parc Bryn Bach featuring a lake swim, a 60 mile bike through the Brecon moors and a three-lap 13.1 mile run; an aquabike option is available.
Monthly updates for Trelewis
Get new running races (and updates) in your inbox every month.
Pool based triathlon at Caldicot Leisure Centre on 26 June 2027 with an indoor swim, traffic free grass cycle circuit, multiple distances, relay and kids races.
July 2027
A coastal IRONMAN 70.3 in Swansea Bay with a swim from Prince of Wales Dock, a bike route toward the Gower Peninsula and a city and waterfront run.
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.
September 2027
Pool swim triathlon at Newport International Sports Village with sprint and Olympic distances, flat bike and run routes, and spectator seating.