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 21 exciting races in the area. Check out our detailed list below to find your next local race.
September 2026
Pool start sprint triathlon at Northampton High School with swim, a one lap bike through Salcey Forest and an out and back run; formats include super sprint, aquabike and relays.
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 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.
Sprint triathlon in Daventry with a 400 m pool swim, 20 km cycle and 5 km run; individual and relay entries plus a club team competition.
Closed-road triathlon at Willen Lake with sprint and standard distances, open-water swims, traffic-free bike laps and a flat lakeside run in Milton Keynes.
Monthly updates for Bletchley
Get new running races (and updates) in your inbox every month.
Riverside triathlon in St Neots on 20 September 2026 offering sprint to middle distances, open water swim, camping, wetsuit hire and relay options.
Triathlon event at Emberton Country Park on 20 September 2026 offering middle, standard and sprint distances plus relay and aquabike options with trophies and a 5% booking fee.
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
Multisport event at Salcey Forest featuring Sprint and Standard duathlons plus 5 km and 10 km trail runs on fully off road forest routes.
April 2027
Pool swim, a rolling 20 km bike through Northamptonshire villages and a flat 5 km out-and-back run finishing at Elizabeth Woodville School.
May 2027
Team triathlon relay at Box End Lakes with 350 m swim, 7.7 km bike and 1 km run per athlete, offering team and single entry options and on site camping.
A 100 km triathlon at Box End Lakes on 23 May 2027 featuring a 2.2 km swim, 81 km bike and 20 km offroad run with aquabike and relay options.
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.
Marlow Triathlon on 30 May 2027 at Higginson Park features open water River Thames swims, cycling through the Chilterns and riverside runs, with medals and chip timing.
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
Five-distance triathlon at Hitchin Outdoor Pool and Butts Close, from children's Nano races to the Olympic distance, with timing, t-shirt and finisher medal included.
Triathlon at Higginson Park, Marlow on 11 July 2027 offering Middle, Olympic and Sprint distances with a Thames swim and chip timed results.
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.
August 2027
Triathlon and multisport festival in St Neots on 7 August 2027 with distances from sprint to full, a 12 hour run, relay options and family festival features.
Two triathlon races in Bedford town centre with river swims, country bike routes and multi-lap riverside runs across Olympic and Sprint distances.