Ultramarathons, or ultras, are any running races beyond the standard marathon distance of 26.2 miles (or 42.2k). The most common ultra distances are 50k, 100k, 50 miles, or 100 miles, but each event is unique in terms of distance and terrain. The International Association of Athletics Federation recognises world records at ultramarathon events that have a distance of 100km. There are even 24hr ultramarathons, where the distance is unlimited, or multiday ultras, where the distance can extend beyond 1000km. There are a couple of city-based ultramarathons, but most ultras make the most of the UK's stunning scenery and countryside. A lot of these events go off-road and require trail-running over difficult terrain with steep climbs or along rugged coastlines. The Race to the Stones is one of the UK's best and most popular ultra marathons, taking in 100km of the historic Ridgeway. Or there is the famous Dragon's Back Race, which takes place over 5 days, taking runners from North to South Wales and requiring ascents adding up to twice the elevation of Mount Everest.
133events found
24
Fri, Sep 24, 2027
Keswick, GB • Run 2 km - Run 180 km
17
Sat, Oct 17, 2026
Corfe Castle, GB • Run 6 km - Run 100 km
11
Sun, Oct 11, 2026 + 4 more
Chichester, GB • Run - Run 50 km
4.5(26)
5
Sat, Jun 5, 2027
Reading, GB • Run 24 hours - Run 24 hours
10
Sat, Oct 10, 2026
Tadworth, GB • Run - Run 50 km
10
Sat, Jul 10, 2027
Oxfordshire, GB • Run 50 km - Run 100 km
18
Sun, Oct 18, 2026
Ely, GB • Run 10 km - Run 8 hours and 30 minutes
19
Sat, Jun 19, 2027
West Dean, GB • Run 30 km - Run 100 km
3
Sat, Jul 3, 2027
Wetherby, GB • Run 24 hours - Run 24 hours
10
Sat, Jul 10, 2027
Gwynedd, GB • Run 10 km - Run 55 km
7
Sat, Nov 7, 2026
Aldershot, GB • Hike 36 km - Run 76 km
7
Sat, Nov 7, 2026
Brighton, GB • Run 27 mi
14
Sat, Nov 14, 2026
West Bridgford, GB • Run 5 km - Run 7 hours
13
Sun, Dec 13, 2026
Brandon, GB • Run 5 km - Run 27 mi
19
Sat, Dec 19, 2026
Bury Saint Edmunds, GB • Run 5 km - Run 6 hours
30
Wed, Dec 30, 2026
Walton-on-Thames, GB • Run 5 km - Run 7 hours
1
Fri, Jan 1, 2027
Staines-upon-Thames, GB • Run 5 km - Run 7 hours
23
Sat, Jan 23, 2027
King's Lynn, GB • Run 5 km - Run 50 km
21
Sun, Feb 21, 2027
Brandon, GB • Run 5 km - Run 27 mi
5
Fri, Mar 5, 2027
London, GB • Hike 22 mi - Run 44 mi
13
Sat, Mar 13, 2027 + more
John o' Groats, GB • Run 860 mi
20
Sat, Mar 20, 2027
Manchester, GB • Run 8 hours - Run 16 hours
4.8(92)
20
Sat, Mar 20, 2027
Welwyn Garden City, GB • Run - Run 50 mi
4.8(166)
26
Fri, Mar 26, 2027
Bury Saint Edmunds, GB • Run 6 hours - Run 6 hours
