Date
Sun, 26 Sept 2027
Start
10:00
Venue
Keswick, Cumbria
Grange, Cumberland
Countdown
September
A friendly half marathon loop from Keswick with gentle climbing and eight hours to finish. Run it or walk it, either is welcome.
Key facts
01Walkers are welcome as well as runners
02Cut-off is 8 hours
03Minimum age 17
Create a free training plan for the Altra 13 Valleys Ultra 21 km
7-day free trial, no card required
The course
The route
Grange
Distance21km
Total climb439m
StartElevation
0 kmDrag map to rotate21.7 km
Weather
Late-September, Grange
14°CTypical high
10°CTypical low
4°CColdest in 20 years
57%Days with rain
Highs around 14°C and lows around 10°C, but it has dropped to 4°C. Rain on 57% of days.
NASA POWER data, 2006-2025, the week either side of race day
2026 results
Who finishes, and how
#RiderTimeAvg speed
01Holly Wootten01:32:0713.7 km/h
02Hannah Havelock-Allan01:43:0612.2 km/h
03Olivia Mulligan01:46:0211.9 km/h
443
Women finishers
2:57:44
Median time
7.1 km/h
Median speed
Women · 2026 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
Training
Training for the Altra 13 Valleys Ultra 21 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a Altra 13 Valleys Ultra 21 km plan targets
Typical sessions
21 km with 439 m of climbing
Time on feet and fatigue resistance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long runs that build time on your feet
Tempo and threshold sessions to hold race pace
Back-to-back weekend runs for fatigue resistance
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
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Get your Altra 13 Valleys Ultra 21 km plan.
7-day free trial, no card required.
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