DateExpected
Late April 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Beyond the Trees, Avondale Forest Park, Rathdrum, County Wicklow
Rathdrum, County Wicklow
Countdown
April
The 50 km cut of the Rathdrum loop day: a short starter lap, then 15 laps of 3.2 km. Light on climbing, a good first ultra.
Key facts
018-hour cut-off
02Waterproof and windproof jacket is mandatory
03Starts 10 minutes after the 100 km field
Create a free training plan for the ALTAR NUTRITION 50KM / 100KM / 100KM RELAY 50 km
7-day free trial, no card required
The course
One lap, on repeat
Rathdrum · one lap
Distance50km
Total climb780m
Start · finishOne lap · elevation
0 kmDrag map to rotate3.3 km
Weather
Late-April, Rathdrum
11°CTypical high
6°CTypical low
2°CColdest in 20 years
42%Days with rain
Highs around 11°C and lows around 6°C, but it has dropped to 2°C. Rain on 42% of days.
NASA POWER data, 2006-2025, the week either side of race day
2026 results
Who finishes, and how
#TeamLapsTime
01CATHERINE HARRIS164:14:31
02Bridin CUMMINS164:29:16
03Erinn SHANNON164:41:04
27
Women finishers
5:44:09
Median time
16 laps
Median laps
Women · 2026 results, as published by the organiser.
How many laps could you do?
Get a prediction based on your recent training
Organiser
Training
Training for the ALTAR NUTRITION 50KM / 100KM / 100KM RELAY 50 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 ALTAR NUTRITION 50KM / 100KM / 100KM RELAY 50 km plan targets
Typical sessions
50 km with 780 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 ALTAR NUTRITION 50KM / 100KM / 100KM RELAY 50 km plan.
7-day free trial, no card required.
Other races at ALTAR NUTRITION 50KM / 100KM / 100KM RELAY
More events in April in Ireland
Knockmealdown HalfExpected Early April 2027 · County Waterford→Knockmealdown Mountain UltraExpected Early April 2027 · Feddaun→ALTAR 50K & 100KExpected Late April 2027 · The Municipal District of Arklow→Dysart WoodsExpected Late April 2027 · County Laois→Gougane BarraExpected Late April 2027 · Béal Átha an Ghaorthaidh→SliabhriadhExpected Late April 2027 · County Limerick→
