Dive into the ATW Box End Triathlon on Sunday, May 24, 2026, held at the picturesque Box End Lake in Bedford. As one of the largest multisport events in the UK, this race offers a challenge for every ambition, from beginner to seasoned athlete.
Choose your distance from three core options: the Sprint (750m swim, 26km bike, 5km run), the Standard (1500m swim, 40km bike, 10km run), or the epic Centurion (2250m swim, 80km bike, 20km run), which mirrors the 100k format ideal for Half Ironman training.
The venue features pristine water quality and a scenic, multi-lap run course perfect for spectator support. All races are non-draft legal, ensuring fair competition. You can also opt for the Aquabike (swim/bike only) or compete in a Relay team. Make it a weekend getaway with available on-site camping, and know that your effort supports a great cause, with fundraising opportunities for Alzheimers Research UK. Secure your early bird entry now for this highly-rated event!
Races Offered
Sprint Distance Aquabike
May 24, 2026
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Distance —
750 km 24 km
terrain
Type —
Multisports
timer
07:00
Sprint Distance Triathlon
May 24, 2026
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Distance —
26 km 10 km
terrain
Type —
Multisports
timer
07:00
Standard Distance Aquabike
May 24, 2026
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Distance —
40K
terrain
Type —
Multisports
timer
07:00
Standard Distance Triathlon
May 24, 2026
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Distance —
40 km 10 km
terrain
Type —
Multisports
timer
07:00
Weather History
These values represent the 3-year monthly averages for May in Bedford.
thermostatTemperature
8.9° / 17.6°
wb_sunnyFeels like
6.1° / 14.5°
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Avg sunshine hours
10h 8m
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Avg rainfall
1.7 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
13.3 km/h (Gentle breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (4.2)
humidity_mid
Humidity
74.5%
wb_twilight
Sunrise
05:06
nightlight
Sunset
20:50
About Bedford
Learn more about the host city, Bedford.
Bedford is the county town and the transport, social, cultural and administrative centre of the shire-county of Bedfordshire in the East of England.
