DateExpected
Mid September 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Clonaslee, County Laois
Clonaslee, County Laois
Countdown
September
A 72 km single loop of the Slieve Bloom Way, run out of Clonaslee. A proper day on the trails, but a small field and a 12-hour limit keep it within reach for a well-prepared ultra runner.
Key facts
01Level C mandatory kit is required
02Kinnitty checkpoint cut-off is 15:30
0312-hour finish limit, no qualifying race needed
Create a free training plan for the Slieve Bloom Way Ultra
7-day free trial, no card required
The course
The route
Clonaslee
Distance72km
Total climb2,000m
StartElevation
0 kmDrag map to rotate68.8 km
Weather
Mid-September, Clonaslee
17°CTypical high
9°CTypical low
4°CColdest in 20 years
52%Days with rain
Highs around 17°C and lows around 9°C, but it has dropped to 4°C. Rain on 52% of days.
NASA POWER data, 2006-2025, the week either side of race day
2025 results
Who finishes, and how
#RiderTimeAvg speed
01Anthony Cahill (1373)03:47:5219.0 km/h
02Brian Hourigan (893)04:52:0814.8 km/h
03Kieran O'Dwyer (988)06:29:5411.1 km/h
56
Finishers
9:11:25
Median time
7.8 km/h
Median speed
Overall · 2025 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
OrganiserIrish Mountain Running Association (IMRA)
Websiteimra.ie
Instagram@irishmountainrunning
Running since2023
Training
Training for the Slieve Bloom Way Ultra
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 Slieve Bloom Way Ultra plan targets
Typical sessions
72 km with 2,000 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
Hill reps and vert to prepare the climbs and descents
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 Slieve Bloom Way Ultra plan.
7-day free trial, no card required.
