100mi events in Wales
Find 100mi events in Wales. Compare 3 upcoming events by date and location. Open a race guide for the course, recorded editions and official entry information where available.
Events to explore include Black Beacon Mountain Races, Ultra X Wales and Beacons Way Ultra 100 Mile.
Narrow your search to Monmouthshire and Powys.
Compare running races by distance, date and surface, from shorter road events to trail races and ultras.
3 listed events · 3 with upcoming dates
Upcoming 100mi events
3 matching events, earliest date first. Entry availability is shown separately.
Black Beacon Mountain Races
WALHay-on-Wye / Pontneddfechan, Powys
Four mountain trail distances in the Bannau Brycheiniog area.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
Ultra X Wales
WALAbergavenny, Monmouthshire
Ultra X Wales in Abergavenny.
Date listed · latest organiser confirmation not yet checked.
Beacons Way Ultra 100 Mile
WALAbergavenny, Monmouthshire
Beacons Way Ultra 100 Mile in Abergavenny.
Date listed · latest organiser confirmation not yet checked.
Race archive
Past races and previous editions
Looking back at a race? Browse the guides below for recorded editions. This section also includes events awaiting a new date and cancelled editions. Previous editions of races in the upcoming calendar are available through their race guides above.
No separate archived race guides are listed for this selection yet.
View full race archive (0) →Browse counties and areas
Choosing a race in Wales
The unfiltered upcoming calendar includes events in Abergavenny (2), Hay-on-Wye / Pontneddfechan (1). Use the town filter to compare locations, then check the race guide for the start venue and organiser’s travel information.
Questions about 100mi events in Wales
What should I check before a running event in Wales?
Choose your distance, then check the route, elevation, cut-off time and entry conditions in the organiser’s race guide.
Which 100mi events are coming up in Wales?
Black Beacon Mountain Races is listed for 30 October 2026 (status to be confirmed). Ultra X Wales is listed for 23 July 2027. Beacons Way Ultra 100 Mile is listed for 24 July 2027. Check the race guide and organiser’s latest information before making plans.
Where can I find race entry details for Wales?
Follow the link from the race guide to the organiser or entry provider, where one is available. Check the entry deadline, eligibility and current availability there. A listed race date does not necessarily mean entries are still open.
Why has a race moved out of the upcoming calendar?
Once its listed dates have passed, a race moves to the past-editions view unless another upcoming edition is recorded. Cancelled events also leave the upcoming list. The race guide stays available, and the event returns when a new date is added.