Conquer the West: The Wild Mayo Ultra Awaits
Saturday May 9th, 2026
Get ready to take on Ireland’s wildest endurance challenge through the rugged beauty of County Mayo. From windswept coastlines to remote mountain passes, the Wild Mayo Ultra promises a test of stamina, spirit, and scenery like no other.
Rider Check-In – Clew Bay Hotel, Westport
Early Check-In:
Friday, May 8th at 7:00 PM
Saturday Check-In:
- 400k Riders: 4:30–4:45 AM
- 300K Riders: 6.30 – 6.45AM
- 200k Riders: 8:00–8:30 AM
- 100k Riders: 10.00- 10.30am
Routes and Start Times – All Rides Roll Out from Clew Bay Hotel
400k: May 9th – 5:00 AM
Entry now: https://eventmaster.ie/event/LdewSp3H76
Route notes:
The Wild Mayo Ultra 400k is a full lap of Mayo’s raw edges.
From the Atlantic coastline it sweeps inland to brush the borders of Galway, Roscommon and Sligo, stitching together lonely roads, exposed bogland and rolling backcountry.
The closing stretch dives into the wildest part of Mayo, Achill has it all, remote, rugged and relentless terrain, this is where the real test begins when the legs are already empty.
300k: 7:00 AM
Entry now: https://eventmaster.ie/event/LdewSp3H76
The Wild Mayo 300k is a half-lap of the county that still packs a punch.
With Minaun out of the equation, we’ve threaded in a series of shorter climbs — sharp, exposed and just as epic. Expect rolling backroads, coastal views, quiet boglands and that familiar Mayo sting in the legs long before the finish.
200k: 9:00 AM
Entry now: https://eventmaster.ie/event/LdewSp3H76
The Wild Mayo Ultra 200k is where many riders begin their ultra journey.
It’s long enough to demand respect, but accessible enough to be achievable with the right preparation. For triathletes, it’s a perfect endurance hit-out in the build toward Ironman. For those coming from the sportive scene, it’s a step beyond the usual format — longer, wilder and a proper test of pacing, fuelling and headspace.
It’s not just another 200k spin. It’s the bridge into something bigger.
100k: 11.00AM
Entry now: https://eventmaster.ie/event/LdewSp3H76
The Wild Mayo Ultra 100k is the gateway distance.
Built for those hovering on the edge of ultra, it gives leisure riders and hardened road racers alike a chance to test themselves without committing to the longer hauls. It’s long enough to demand focus, short enough to keep the fear in check.
And for the testers out there — it’s the only time trial of this distance in Ireland. Fast, honest and nowhere to hide.
Choose your distance. Embrace the challenge. The Wild Mayo Ultra is more than a race—it’s an unforgettable journey through Ireland’s untamed west.
Rules for 2026 events:
Participant Brief and start times for the 2026 will be emailed before event.
FAQ
What categories are included in the Wild Mayo 100, 200, 300 & 400 Ultra cycling challenge?
Wild Mayo 100k:
- Male & Female Solo Unsupported
Wild Mayo 200k:
- Male & Female Solo Unsupported
- 2-person (can be mixed sex teams)
Wild Mayo 300k:
- Male Solo unsupported
- Female Solo unsupported
- 2-4 person (can be mixed sex teams) All ride the course together
Wild Mayo 400 Ultra:
- Male & Female Unsupported
- Relay 4 person
- 2-4 person (can be mixed sex teams) All ride the course together
Wild Mayo Ultra groups
- A group can consist of 2 and up to 4 riders
- A group can ride any of the distances (except 100k)
- The time of the last rider across the finish line is considered the teams finishing time.
- Its forbidden to receive outside help while part of an Ultra group ride
Solos, pairs ,teams and groups will all carry a GPS tracker to ensure accuracy and fair play. There will be Prizes in each category above providing there are 5 or more in that category.
Start and Finish details.
Both races will start and finish in Westport.
The Mayo Ultra 400: Start on Saturday at 5am, in the following order: Solo’s , Pairs, Teams and groups will all Start at 3min intervals.
The Mayo Ultra 300: start 7am, Solo riders will depart at 3 min intervals, followed by the 2 person teams followed by Club/ buddy groups
The 200k : start 9am more or more or less directly after the 300k participants.
The 100k : start 11am with the aim of catching the participants of the longer distances (Remember to give them a cheer)
We want most riders finishing around the same time 16.00 to 20.30 hopefully in daylight hours, this will add to the finishers experience as there will be more supporters around to clap you home and complement your great achievement.
Individual start times will be listed on the website after May 5th.
When does registration close?
May 5th 2026 Race numbers are limited so this might close earlier.
What are the time allowances for the Wild Mayo Ultra and Furnace?
The Mayo Ultra 200 cut off is 12 hours for solo male and 15 hours for solo female.
The Mayo Ultra 300 cut off is 16 hours for solo male and 20 hours for solo female.
Cut off time for 2-person team is 20 hours.
The Wild Mayo 400 cut off is 22 hours for solo male and 25 hours for solo female.
Cut off time for 2 -4 person teams is 22 hours.
What kind of a support crew do I need?
All distances in the Wild Mayo Ultra must go unsupported. (Unless discussed with event organiser)
What does Solo unsupported mean ?
Solo unsupported in ultra cycling means you ride the entire event alone and without outside help.
No team car.
No friends handing up bottles.
No pre-arranged support.
You navigate the route yourself, carry your own gear, fix your own mechanicals, and source your own food, water and sleep from publicly available places. If something goes wrong, you deal with it.
The event organisers do provide a service station (Drop bags/spares) generally about half way around the route plus we have marshal checkers and crew to help in case of a bad breakdown all around the routes.
What are night hours?
Night hours are designated from 7:00 to 20:00pm. A rider cannot proceed along the route independently for any distance during night hours without high Viz vest and front and back lights. There are no exceptions. Penalties will be instantly applied by course marshals without prior warning.
How do I follow the route?
We will send all entrants the route GPS file a few days before the event so they can study it, it can also be download onto any GPS device. You will also receive a detailed route book as part of your race package.
AMENDMENTS MAY BE MADE TO THE PROVISIONAL ROUTES UP TO AND INCLUDING MAY 5 th. ALL ROUTE FILES POST MIDNIGHT, MAY 5th WILL BE CONSIDERED FINAL UNLESS NOTIFIED BY RACE MANAGEMENT.
What is data network coverage like on the route?
There are short sections throughout the course that have no data or cell phone coverage. We have endeavoured to place timing stations in areas where there is sufficient coverage.
In those sections with poor coverage please expect GPS tracker uploads, and therefore race information, to be temporarily slower.
What is scrutiny and rider-crew sign-on?
400,300, 200 and 100 participants from 18:30 to 20:30 Friday On Saturday morning we have limited check in time for 400 and 300k participants.
On Saturday Morning, riders must present themselves at least 30minutes before their start time to allow bike be checked and tracker collection.
Bike and vehicle scrutiny
Will take place Friday between 18:30 and 20:30. It will run on a first come first served basis. Generally each scrutiny will take 15 minutes. If equipment does not pass scrutiny, additional time may be allotted allowing the rider/team to make satisfactory adjustments.
When does the rider briefings take place?
The briefing will takes place on line on Tuesday May 5th at 20:00, a member of the organisation can brief anyone who missed the virtual meeting at the Clewbay Hotel Westport on Friday or Saturday. It is mandatory for solo riders (or 1 rider from a team) to attend. It is the responsibility of each team to ensure that information is shared amongst all team members. We will endeavour to make this meeting as efficient as possible so you can plan for an early evening.
It is also a chance to be introduced to your fellow riders and crews during the official sign-on.
What happens if one of our RELAY team members drops out of the event?
You will get an official time as long as one member of the team finishes the full distance.
Is there a minimum distance that each team member must ride in the Relay category ?
No. Riding strategy is at team discretion.
How does the group/ team category work ?
All of the team must finish together if possible, regardless if its a 2-4 person group, the time will be taken of the last person across the line. (Best to stay together for the entire distance)
What /Where are the timing stations?
The position of all cyclists will be monitored through live tracking. The arrival time at all time stations will be ranked, riders and supporters have live access to the data via link. (This link will be posted the day before) interesting data to look over post event for the participant.
We have endeavoured to ensure that there is adequate GPS (and cell phone) coverage at each timing station for efficient data upload. Please be aware that while each timing station has cell phone coverage it may not extend past that point. THIS IS NOT A REQUIREMENT FOR SOLO OR GROUP UNSUPPORTED PARTICIPANTS
Will the event be marshalled?
On junctions etc NO, but we will have checkers out on route to make sure the rules are been abided.
There will be teams of travelling marshal’s en-route. It is your responsibility to make sure all crew members read the rule-book. Rules will be enforced strictly and time penalties will apply.
There is a strict no drafting policy in all SOLO categories.
