Triathlon Races in United Kingdom 2026 13 events
Browse upcoming triathlon races in United Kingdom. Find dates, distances, and registration links.
Upcoming races
Triathlon
ATW Midweek Dorney Triathlon - August
◎ Dorney Lake, Court Lane, off Lake End Road, Windsor SL4 6FJ, United Kingdom▤ Aug 26, 2026
TriathlonIn 3 days
Wimbleball Lake Triathlon
◎ Wimbleball Lake, near Dulverton, Somerset, TA22 9NU, United Kingdom▤ Aug 30, 2026
TriathlonIn 9 days
THE ROC England triathlon
◎ Windermere, United Kingdom▤ Sep 5, 2026
TriathlonIn 10 days
IRONMAN 70.3 Swansea
◎ Swansea, United Kingdom▤ Sep 6-7, 2026
1.9 km / 90 km / 21.1 km
TriathlonIn 10 days
Brighton and Hove Triathlon
◎ Hove, United Kingdom▤ Sep 6, 2026
TriathlonIn 3 weeks
Dawlish Triathlon
◎ Dawlish Warren, United Kingdom▤ Sep 20, 2026
TriathlonIn 3 weeks
ATW St Neots Triathlon - Race 3
◎ Huntingdonshire, United Kingdom▤ Sep 20, 2026
TriathlonIn 4 weeks
ATW Dorney Triathlon - September
◎ Dorney Lake, Court Lane, off Lake End Road, Windsor SL4 6FJ, United Kingdom▤ Sep 26, 2026
TriathlonIn 4 weeks
ATW Grafham Triathlon
◎ Huntingdonshire, United Kingdom▤ Sep 26, 2026
TriathlonIn 5 weeks
THE ROC Scotland triathlon
◎ Kinross, United Kingdom▤ Oct 3, 2026
TriathlonIn 5 weeks
Torbay Triathlon Autumn
◎ Paignton, United Kingdom▤ Oct 4, 2026
TriathlonIn 9 months
ATW Centurion 100KM Triathlon Box End
◎ Box End Lakes,Box End Rd, Bedford MK43 8RN, United Kingdom▤ May 23, 2027
100 km
TriathlonIn 9 months
Monster Triathlon
◎ Windsor, United Kingdom▤ Jun 6, 2027