Enigma Formula 1
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Enigma Formula One : Caldecotte Lake, Milton Keynes (17–18 July 2027)
Enigma Formula One is a weekend of lap-based running events at Caldecotte Lake in Milton Keynes, held on 17 and 18 July 2027. The venue is listed as the Premier Inn on Lakeside Grove, Caldecotte, MK7 8HP, located about 150 yards off the A5 and roughly 3 miles from the M1; a windmill is noted as a local landmark.
Events run over repeated scenic laps of the lake. Distances offered:
- Marathon : 7½ laps of Caldecotte Lake; a 50k option is available.
- Half marathon : 3½ laps of Caldecotte Lake.
Route descriptions are provided at the event location. The races are held under the rules of the 100 Marathon Club. Race support includes a starter, timekeeper, race referee, a large pub car park, and water and toilets available every lap of the course. Participants are required to wear suitable clothing and footwear.
Time limits apply: marathons have a hard limit of 7:00 hours, with finishers beyond that recorded as DNF; half marathons have a 4:00 hour limit. All finishers receive a bespoke medal. The organiser’s cancellation policy does not permit refunds; entries may be deferred up to seven days before the event and must be used within 18 months. Entrants must be at least 18 years old and accept the event risks and liability conditions. Visit the organization's website for the most recent information.
