13 Valleys Ultra takes place on Fri, Sep 25, 2026 in Keswick, United Kingdom. The main route is 184.3 km.
- Date
- Fri, Sep 25, 2026
- Start
- Keswick 🇬🇧
- Distance
- 184.3 km
- Climbing
- 7,000 m
- Level
- Open to all
An epic endurance trail event linking the 13 unique valleys of the Lake District National Park across multiple distances up to an 184km ultra.
Official event pageWhat this race demands
The 13 Valleys Ultra demands sustained multi-day endurance across an extremely demanding mountain route of 184.3 km and 7000 meters of climbing in the Lake District.
Extreme Climbing Volume
Navigating 7000 meters of elevation gain over a 184.3 km ultra requires relentless uphill climbing and eccentric quad strength for the corresponding descents.
Ultra-Endurance Durability
Covering 184.3 km on trail demands exceptional physiological and structural durability to withstand continuous movement over many hours.
Technical Mountain Terrain
Traversing the 13 valleys of the Lake District requires technical trail running proficiency and focus under profound fatigue.
Given the multi-hour duration of this 184.3 km ultra, athletes should target an intake of 60 to 90 grams of carbohydrates per hour to maintain energy output.
Estimated finish times
Estimates by level, not promises. Your own number depends on your fitness on the day.
Your road to race day
Race day at 13 Valleys Ultra is 5 weeks away. This is how a coach divides that time. The first phase starts now.
01Peak2 weeks · Aug 22, 2026 – Sep 4, 2026
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
02Taper2 weeks · Sep 5, 2026 – Sep 18, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
03Race week1 week · Sep 19, 2026 – Sep 25, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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