DateExpected
Early May 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Clew Bay Hotel, Westport, County Mayo
Westport Harbour, County Mayo
Countdown
May
The big one: 400 km out of Westport in a single loop, starting at 5am. You will ride through the night, so this is as much about lights and pacing as legs.
Key facts
01Unsupported unless agreed with the organiser beforehand
02Night riding needs a high-vis vest plus front and rear lights
03Cut-off: 22 hours solo men and teams, 25 hours solo women
Create a free training plan for the Wild Mayo Ultra 400 km
7-day free trial, no card required
The course
The route
Westport Harbour
Distance400km
StartElevation
0 kmDrag map to rotate386.6 km
Weather
Early-May, Westport Harbour
13°CTypical high
7°CTypical low
2°CColdest in 20 years
56%Days with rain
Highs around 13°C and lows around 7°C, but it has dropped to 2°C. Rain on 56% of days.
NASA POWER data, 2006-2025, the week either side of race day
2026 results
Who finishes, and how
#RiderTimeAvg speed
01Philip Culbert13:49:2028.9 km/h
02Michael Hall14:26:4927.7 km/h
03Ken Egan14:32:0127.5 km/h
9
Finishers
17:11:56
Median time
23.3 km/h
Median speed
Overall · 2026 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
OrganiserRaceface Events
Running since2021
Training
Training for the Wild Mayo Ultra 400 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 Wild Mayo Ultra 400 km plan targets
Typical sessions
400 km
Endurance and fatigue resistance over the full distance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long endurance rides building toward the full distance
Threshold and sweet-spot work for sustained power
Group rides for drafting and bunch-riding skills
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 Wild Mayo Ultra 400 km plan.
7-day free trial, no card required.
Other races at Wild Mayo Ultra
More events in May in Ireland
Waterville Trailrunning FestivalSat, 1 May 2027 · Kenmare Municipal District→Carrick MountainExpected Early May 2027 · Glenealy→MTC MizMal ®Fri, 7 May 2027 · County Donegal→Beara Way UltraExpected Mid May 2027 · County Cork→Beara Way ChallengeExpected Mid May 2027 · Start on Derrintaggert Road near the Old Bakery Restaurant→Beara Way LITEExpected Mid May 2027 · County Cork→
