About this race
Enigma Week At the Knees comprises seven marathons on seven consecutive days in Milton Keynes, using two lake venues. The initial three days are at Willen Lake near the Lakeside Bar & Grill, with the final four days relocating to Caldecotte Lake by the Premier Inn on Bletcham Way. All races commence at 09:30. Registration opens thirty minutes prior to the start, and a mandatory briefing occurs ten minutes before runners begin. Each marathon has a strict seven-hour time limit; participants exceeding this cutoff are recorded as DNFs.
The format suits runners who prefer repeat marathons and lap-based logistics over a single point-to-point city race. Route descriptions are provided at registration. Support includes a starter, timekeeper, race referee, and an aid station offering water and snacks each lap. Caldecotte Lake reverses direction after its first day, alternating between anti-clockwise and clockwise races. Each day features a unique medal, and participants completing all seven receive an additional finisher medal for the full 183.4 miles. The event adheres to 100 Marathon Club rules, indicating the typical participant: marathon collectors, multi-day event regulars, and runners assessing their endurance for a week of 26.2-mile runs.