Enigma Week At the Knees 2026
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Enigma Week At the Knees 2026
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About
Take part in this 7 day marathon challenge to see how far you can run. Taking place in two unique locations, with day 1-3 at Willen Lake and 4-7 at Caldecotte Lake, both routes will be exceptionally picturesque and flat. If 7 days is too much sign up for just one, the choices are endless.
Willen Lake - Day 1, Willen Lake - Day 2, Willen Lake - Day 3, and 5 more
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Mon, Mar 9, 2026
View logistics
Milton Keynes, United Kingdom
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Where and when
Location
Willen Lake, V10 Brickhill St, Milton Keynes MK15 0DS, UK
Start times
Monday, Mar 9, 2026
Willen Lake - Day 1: 9:30 AMWillen Lake - Day 2: 9:30 AMWillen Lake - Day 3: 9:30 AMCaldecotte Lake (Anti-Clockwise) - Day 4: 9:30 AMCaldecotte Lake - Day 5: 9:30 AMCaldecotte Lake - Day 6: 9:30 AMCaldecotte Lake - Day 7: 9:30 AM7 Marathons in 7 Days: 9:30 AM
Event summary
Here are the distances available for Enigma Week At the Knees 2026
Willen Lake - Day 1
26.2mi
£39.99
Willen Lake - Day 2
26.2mi
£39.99
Willen Lake - Day 3
26.2mi
£39.99
Caldecotte Lake (Anti-Clockwise) - Day 4
26.2mi
£39.99
Willen Lake - Day 1
26.2mi
£39.99
Willen Lake - Day 2
26.2mi
£39.99
Willen Lake - Day 3
26.2mi
£39.99
Caldecotte Lake (Anti-Clockwise) - Day 4
26.2mi
£39.99
Route information
Distance: Marathon Elevation: Flat Terrain: Paths
Runners will be taken on the lakefront paths around Caldecotte Lake or Willen Lake to complete a marathon. This lapped course is a mix of hard gravel, concrete, and a few yards of mud and grass, making it a great mixed-terrain run for new and experienced runners alike. Take in the fantastic scenery and see if you can earn a PB.
What's included
- Bespoke Finisher's Medal
- Aid stations
- Timekeeper
- Race referee
- Large pub car park
How to get there
Willen Lake, V10 Brickhill St, Milton Keynes MK15 0DS, UK
Get full directionsParking
- Willen Lake: There will be a Pay & Display car park available for entrants to use
- Caldecotte Lake: There is a large car park at the Hickory Smoklehouse which is located near the event site.
By Train
- Willen Lake: The closest train station to Willen Lake is Milton Keynes Central, from there you can take the number 8 bus to the lake.
- Caldecotte Lake: Bow Brickhill is the closest train station from the event site, which is just 2 miles from Bletchley and 4.5 miles from Milton Keynes Central. Bow Brickhill is serviced by the Bedford line which runs hourly, so please leave plenty of time to travel.
Hotels and Accommodation
Enigma Running has partnered with Let's Do This to bring you some of the best hotel rates close to the startline.
Find your roomEvent day logistics
Monday
09:30 Willen Lake Marathon - Day 1 starts
Tuesday
09:30 Willen Lake Marathon - Day 2 starts
Wednesday
09:30 Willen Lake Marathon - Day 3 starts
Thursday
09:30 Caldecotte Lake (Reverse Route) - Day 4 starts
Friday
09:30 Caldecotte Lake - Day 5 starts
Saturday
09:30 Caldecotte Lake (Reverse Route) - Day 6 starts
Sunday
09:30 Caldecotte Lake - Day 7 starts
*There will be a mandatory race briefing 10 minutes before the races which all entrants must attend.
Age Requirements
All entrants must be 18 and older to take part in the event.
Registration
Registration will open 30 minutes before each race starts.
Locations
- Day 1/2/3: Willen Lake
- Day 4/5/6/7: Caldecotte lake
Cut-Off Time
There is a strict cut-off time of 7:00 hours for all marathons, those who do not complete the marathon within this time will be recorded as DNF.
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