Bletchley
Triathlon Calendar near Bletchley 2026-2027
Monthly updates for Bletchley
Get new running races (and updates) in your inbox every month.
Explore the top triathlons near Bletchley for 2026-2027! We've gathered 19 exciting races in the area. Check out our detailed list below to find your next local race.
August 2026
Bedford Triathlon in Bedford offers Olympic and Sprint categories, a local TT-style bike route with a Hill Foot climb, and a riverside two-lap run.
Two triathlon races at Queenford Water Park in Oxfordshire, including a June sprint and an August Olympic distance with chip timing and race photos.
September 2026
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.
Nettleden Duathlon at Nettleden Lodge near Berkhamsted combines a 6 km run, a 24 km cycle and another 6 km run. It accepts individual entrants and relay teams, includes free kids races, and raises funds for charities.
A pool based sprint triathlon in Daventry with a 400 m swim, 20 km cycle and 5 km run plus individual and relay options and a club team competition.
A closed-road triathlon at Willen Lake offering Sprint and Standard distances, plus aquabike and relay options. The event features calm open water, a traffic-free bike course and a flat lakeside run.
Riverside triathlon in St Neots on 20 September 2026 offering sprint to middle distances, open water swim, camping, wetsuit hire and relay options.
Multi-distance triathlon at Emberton Country Park on 2 August 2026, with Middle, Standard and Sprint races plus aquabike, aquathlon and bike-run options.
Timed solo swimrun at Grafham Water with repeated 2.5 km laps, two swims and shrinking time limits until the last person remains.
October 2026
Duathlons and 5km and 10km trail runs in Salcey Forest on 25 October 2026 with fully off road routes and live chip timing.
April 2027
Sprint triathlon in Roade with a pool swim, a 20 km bike through Northamptonshire countryside and a flat 5 km run finishing on the school field.
May 2027
Four person team relay triathlon at Box End Lakes featuring a 350 m swim, 7.7 km bike and 1 km run per athlete. Teams can enter in Olympic mixed, female or open categories and single entries may be allocated to teams on race day.
A 100 km triathlon at Box End Lakes on 23 May 2027 with a 2.2 km swim, 81 km non draft bike and a 20 km off road run. Aquabike and team relay options are available, with camping and free parking on site.
Triathlon at Box End Lakes on 23 May 2027 offering Sprint, Standard and Centurion distances. Options include aquabike, two to three person relays, non-draft multi-lap courses and on-site camping.
June 2027
Two-day triathlon at Blenheim Palace with Sprint and SuperSprint races, lake swim, closed road bike, parkland run, finish line festival and team programme.
July 2027
A five-distance triathlon at Hitchin Outdoor Pool with pool swims, closed roads cycling and a flat run finishing at Butts Close.
Teams of three each complete a 750m swim, 23km bike and 5km run in relay format at Box End Park with categories and prizes for top teams.
September 2027
Triathlon at Box End Lakes on 19 September 2027 offering Sprint, Standard and Middle Distance races plus aquabike and relay options in clear open water.