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.
131events found
5
Sat, Sep 5, 2026
Barmouth, GB • Run - Run 53km
4.7(46)
12
Sat, Sep 12, 2026
Hope Valley, GB • Run - Run 110km
25
Fri, Sep 25, 2026 + more
Keswick, GB • Run 2km - Run 180km
17
Sat, Oct 17, 2026
Corfe Castle, GB • Run 6km - Run 100km
5
Sat, Jun 5, 2027
Reading, GB • Run 24 hours - Run 24 hours
3
Sat, Jul 3, 2027
Wetherby, GB • Run 24 hours - Run 24 hours
10
Sat, Jul 10, 2027
Oxfordshire, GB • Run 50km - Run 100km
14
Wed, Apr 14, 2027
Chepstow, GB • Run 200mi
19
Sat, Jun 19, 2027
West Dean, GB • Run 30km - Run 100km
12
Sat, Sep 12, 2026
Wareham, GB • Run - Run 53km
4.8(31)
5
Sat, Sep 5, 2026
Studland, GB • Run 30mi
6
Sun, Sep 6, 2026
Brandon, GB • Run 5km - Run 27mi
18
Fri, Sep 18, 2026
Hathersage, GB • Run 25km - Run 100mi
5.0
20
Sun, Sep 20, 2026
Houghton le Spring, GB • Run 5km - Run 7 hours
26
Sat, Sep 26, 2026
Northampton, GB • Run 5km - Run 7 hours
27
Sun, Sep 27, 2026
Billingford, GB • Run 5km - Run 27mi
2
Fri, Oct 2, 2026
Loggans, GB • Run 26.2mi - Run 78.6mi
3
Sat, Oct 3, 2026
St Ives, GB • Run 40mi
3
Sat, Oct 3, 2026
Ashley Heath, GB • Run 50km
4.9(10)
3
Sat, Oct 3, 2026
Horndean, GB • Run 5km - Run 51km
3
Sat, Oct 3, 2026
Guildford, GB • Run 30mi
4.7
3
Sat, Oct 3, 2026
London, GB • Run 25km - Run 50km
4.7(166)
11
Sun, Oct 11, 2026 + 4 more
Chichester, GB • Run - Run 50km
4.5(26)
11
Sun, Oct 11, 2026
Bath, GB • Run 2km - Run 50km
5.0
18
Sun, Oct 18, 2026
Ely, GB • Run 10km - Run 8 hours and 30 minutes
7
Sat, Nov 7, 2026
Aldershot, GB • Hike 36km - Run 76km
7
Sat, Nov 7, 2026
Brighton, GB • Run 27mi
14
Sat, Nov 14, 2026
West Bridgford, GB • Run 5km - Run 7 hours
13
Sun, Dec 13, 2026
Brandon, GB • Run 5km - Run 27mi
19
Sat, Dec 19, 2026
Bury Saint Edmunds, GB • Run 5km - Run 6 hours
30
Wed, Dec 30, 2026
Walton-on-Thames, GB • Run 5km - Run 7 hours
1
Fri, Jan 1, 2027
Staines-upon-Thames, GB • Run 5km - Run 7 hours
23
Sat, Jan 23, 2027
King's Lynn, GB • Run 5km - Run 50km
21
Sun, Feb 21, 2027
Brandon, GB • Run 5km - Run 27mi
5
Fri, Mar 5, 2027
London, GB • Hike 22mi - Run 44mi
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 50mi
4.8(166)
26
Fri, Mar 26, 2027
Bury Saint Edmunds, GB • Run 6 hours - Run 6 hours
27
Sat, Mar 27, 2027
Portland, GB • Run 40mi - Run 40mi
5.0
8
Sat, May 8, 2027
Abergavenny, GB • Run 100km - Run 100mi
16
Sun, May 16, 2027
Brandon, GB • Run 5km - Run 50km
22
Sat, May 22, 2027
Grimsthorpe, GB • Run 10mi - Run 100mi
4.9(105)
29
Sat, May 29, 2027
Buntingford, GB • Run - Run 24 hours
4
Sun, Jul 4, 2027
Peterborough, GB • Run 5km - Run 50km
10
Sat, Jul 10, 2027
Gwynedd, GB • Run 10km - Run 57km
29
Sun, Aug 29, 2027
Chepstow, GB • Run 12mi - Run 35mi
30
Sun, Aug 30, 2026
Old Elvet, GB • Run 5km - Run 6 hours and 32 minutes
