Stanmore
Triathlon Calendar near Stanmore 2026-2027
Monthly updates for Stanmore
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Stanmore for 2026-2027! We've gathered 35 exciting races in the area. Check out our detailed list below to find your next local race.
August 2026
Evening triathlon at Dorney Lake with sprint and super sprint races, aquabike and relays, chip timing, wetsuit hire and free parking.
Experience a triathlon at an iconic Olympic venue featuring a calm open water swim and a flat traffic free course. Choose from Super Sprint Standard Aquabike or relay options with chip timing and themed medals for all finishers.
Triathlon events at Dorney Lake with Super Sprint, Sprint and Standard distances plus aquabike and relay options at an Olympic venue.
September 2026
Multi-race aquathlon at Guildford Lido and Stoke Park with age groups from 8 to adult and distances from 50m swim/600m run up to 500m swim/5km run.
Monthly updates for Stanmore
Get new running races (and updates) in your inbox every month.
A relaxed community triathlon in South London with open water swim, stationary bike and dockside run where participants choose their own distances.
Small low entry triathlon at the Bridge Development in Dartford offering multiple multi lap race formats including a 1500m Stranded event and shorter GOTri and sprint races.
A community aquathlon at Letchworth Outdoor Pool combining a 400 m pool swim and a 5 km run with junior distances and relay options. Chip timed age group competition, inclusive entries and a 350 participant limit.
A multisport event at Dorney Lake, offering triathlon, duathlon, aquabike, aquathlon and open water swims with marked courses and chip timing.
Midweek Aquathlon at DA1 5PR: 650 m open water swim in the south lake followed by a three lap 5.7 km run, field limited to 40 for water safety.
Nettleden Duathlon on 12 September 2026 at Nettleden Lodge near Berkhamsted features a 6 km run, 24 km cycle and 6 km run with individual and relay options plus kids races and fundraising.
Pool swim, fast bike loops and a lapped park run at Woking Leisure Centre offering junior and adult triathlon and aquathlon races.
Tri Reigate at Buckland Park on 13 September 2026 offers sprint and standard triathlons around a lake and country lanes, supporting Macmillan Cancer Support.
Multisport event at Henley Showground on the River Thames offering triathlon, aquabike and open water swims on marked, marshalled courses.
A traffic free triathlon at Eton Dorney on 20 September 2026 offering super sprint, sprint and standard distances for individuals and three‑person teams, with chip timing, water safety cover and on‑site parking.
Multi-sport events at Willesden Sports Centre featuring a 400 m pool swim with 10 km bike and 5 km run options; entries for the September triathlon go via British Triathlon.
A women-only aquathlon at Shepperton Lake combining calm open-water swims with a flat run, offering beginner and step-up distances plus on-site facilities for participants and spectators.
Triathlon at Dorney Lake on 26 September 2026 offering Super Sprint, Sprint and Standard distances with aquabike and relay options on a mainly flat, chip timed course.
Triathlon at Dorney Lake in Windsor with Super Sprint, Sprint, Standard, aquabike and relay options on a flat, chip timed course; British Triathlon licence required.
Sprint and Super Sprint triathlons at Hampton Pool feature pool swims in a 26°C lido, road cycling and runs beside Hampton Court with safety measures for open roads.