ATW Milton Keynes Triathlon

SEP
13
2026
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.
Sprint 750 m 20 km Sprint 750 m 20 5 km Olympic 1500 m 40 km Olympic 1500 m 40 10 km

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ATW Milton Keynes Triathlon

The ATW Milton Keynes Triathlon is a closed-road triathlon held at Willen Lake in Milton Keynes (Willen Lake, Brickhill St, MK15 0DS). The venue offers calm open-water swimming, wide traffic-free roads for cycling, and a flat lakeside run route. The course is clearly marked and supported by marshals; organisers provide finish-line snacks and a custom finisher medal.

Two main race distances are offered:

  • Sprint: 750 m swim, 20 km closed-road bike, 5 km run
  • Standard: 1500 m swim, 40 km closed-road bike, 10 km run

The event follows a non-drafting race format and offers a choice of mass-start or rolling swim starts. Additional race options include Sprint Aquabike, Standard Aquabike, and a Standard Distance Team Relay for teams that split disciplines.

The event notes a generous overall cutoff of 5 hours and lists a range of entry prices. The organiser is Active Training World. The location is described as accessible from nearby cities and set within the green parkland of Milton Keynes. Visit the organization's website for the most recent information.

10 km
Standard Distance Team Relay
Sprint Aquabike
Standard Distance Triathlon
Standard Aquabike
Sprint Triathlon
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