Date
Fri, 23 Oct 2026
Start
19:30
Venue
Glendalough Upper Lake Carpark, Glendalough, County Wicklow
The Municipal District of Wicklow, County Wicklow
Countdown
October
The short night option: a 4.2 km marked loop that heads up towards the summit of Derrybawn. Short, but 320 m of climbing makes it a proper hill outing. Walkers welcome.
Key facts
01Runners and walkers age 14 or older
02Level B mandatory kit required
03Running torch required
Create a free training plan for the Night Challenge 4: Glendalough 4 km
7-day free trial, no card required
The course
The route
The Municipal District of Wicklow
Distance4.2km
Total climb320m
StartElevation
0 kmDrag map to rotate4.2 km
Weather
Late-October, The Municipal District of Wicklow
13°CTypical high
9°CTypical low
2°CColdest in 20 years
62%Days with rain
Highs around 13°C and lows around 9°C, but it has dropped to 2°C. Rain on 62% of days.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
OrganiserIrish Mountain Running Association (IMRA)
Websiteimra.ie
Instagram@irishmountainrunning
Running since2024
Training
Training for the Night Challenge 4: Glendalough 4 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 Night Challenge 4: Glendalough 4 km plan targets
Typical sessions
4 km with 320 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
Entries open now
Get your Night Challenge 4: Glendalough 4 km plan.
7-day free trial, no card required.
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