Enigma Quadzilla

Quadzilla is a multi-day running event organized by Enigma Running, taking place from February 5 to February 8, 2026, at Caldecotte Lake in Milton Keynes. Participants can choose to run individual marathons or the full four-day challenge, completing a total of 7½ scenic laps around the lake each day. The event features a hard time limit of 7 hours for each marathon, with unique medals awarded to all finishers.

The organization emphasizes safety and preparedness, requiring participants to be medically fit and aware of the risks involved. All events for this year are sold out. Visit the organization's website for the most recent information.