ATW Centurion 100km Triathlon Box End
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Event overview
The ATW Centurion 100KM Triathlon takes place on 24 May 2026 at Box End Lakes, Box End Rd, Bedford MK43 8RN. The organiser is Active Training World (ATW). Entry is open to people aged 18 and over on 31/12/2026. Free parking is available at Box End Lakes and camping is available at Box End Park. The event offers free event photos, a custom medal and finish-line snacks.
Distances
- Metric Centurion - 2.2 km swim, 81 km bike, 20 km off-road run
- Standard Triathlon - 1.5 km swim, 40 km bike, 10 km run
- Sprint Triathlon - 750 m swim, 26 km bike, 5 km run
- Centurion Aquabike - 2.2 km swim, 81 km bike
- Centurion Relay - same distances split between 2 or 3 individuals
Race format and logistics
The bike leg is non-draft legal. Time cut-offs are: swim cut-off 2 hrs 30, bike cut-off 6 hrs 30 (from race start), and final race cut-off 8 hrs 30 (from race start). Typical completion times published are swim under 1 hr 10, bike about 3 hrs, and run about 2 hrs 30. Wetsuit hire options are available through event partners. A Female category (female sex at birth) and an Open category are provided for competitors. Entry prices listed include Centurion Triathlon £119, Aquabike £99 and Centurion Relay £139. Visit the organization's website for the most recent information.
