DateExpected
Mid September 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Connemara National Park, Letterfrack, County Galway
Letterfrack, County Galway
Countdown
September
The short and junior loop on Diamond Hill: under 3 km with a gentle 108 m of climbing, a friendly way into hill running.
Key facts
01Level B kit is mandatory: waterproof jacket, hat or buff, gloves, whistle
02Carry a charged mobile phone and a foil blanket, bivvy bag or equivalent
03Results are ranked by sex and age group
Create a free training plan for the Diamond Hill 3 km
7-day free trial, no card required
The course
The route
Letterfrack
Distance2.9km
Total climb108m
StartElevation
0 kmDrag map to rotate3.0 km
Weather
Mid-September, Letterfrack
16°CTypical high
12°CTypical low
8°CColdest in 20 years
60%Days with rain
Highs around 16°C and lows around 12°C, but it has dropped to 8°C. Rain on 60% 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 since2025
Training
Training for the Diamond Hill 3 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 Diamond Hill 3 km plan targets
Typical sessions
3 km with 108 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 Diamond Hill 3 km plan.
7-day free trial, no card required.
Other races at Diamond Hill
More events in September in Ireland
Kerry Way Ultra NiteFri, 3 Sept 2027 · Waterville→The Kerry Way Ultra RelayExpected Early September 2027 · Killarney→Kerry Way Ultra LiteSat, 4 Sept 2027 · Kenmare Municipal District→Crotty's LakeExpected Mid September 2027 · County Waterford→Slieve Bloom Way UltraExpected Mid September 2027 · Clonaslee→Tour de BearaExpected Mid September 2027 · Glengarriff→
