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Ultra Marathons Found In May 2026
View all ↓Ultra Marathons In May 2026
Find A Race is the UK's most popular event listings site. Check out our list of May 2026 Ultra Marathons & Ultra Running Races below.
Popular & Featured
Race Calendar: Ultra Marathons In May 2026
🚀Boosted
Chiltern Hills 100K
Chesham, Buckinghamshire
Sat 09 May 26
£152.00
🚀Boosted
Rocky at 50 Run
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Sat 16 May 26
£18.00 - £35.00
🚀Boosted
PWR Endure Backyard Ultra Marathon
Bristol, Avon
Sat 23 May 26 - Sun 24 May 26
£54.00
🚀Boosted
Rocky at 50 Run - Wales
Dare Valley Country Park, Aberdare, CF44 7PS
Sat 30 May 26
£18.00 - £34.00
Dun Holm Challenge - Day 3
Durham Amateur Rowing Club, Green Ln, Old Elvet, Durham DH1 3JU
Sat 23 May 26
£18.00 - £29.00
The Grim Reaper - 10, 40, 70, 100-miles
Bourne, Lincolnshire
Sat 23 May 26 - Sun 24 May 26
£35.00 - £160.00
5.0
Phoenix Manchester Mind the Lap
Manchester, Lancashire
Sun 24 May 26
£27.00 - £40.00
Slow and Steady Wins The Race - Northampton
Northampton Active, Bedford Rd, Northampton NN4 7AA
Sun 24 May 26
£18.82 - £35.55
PHOENIX West Sussex - Butterfly Run
Haywards Heath, West Sussex
Sun 24 May 26
£22.00 - £39.95
Dun Holm Challenge - Day 4
Durham Amateur Rowing Club, Green Ln, Old Elvet, Durham DH1 3JU
Sun 24 May 26
£18.00 - £29.00
Spring Feisty Phoenix Day 2
Winchester, Hampshire
Sun 24 May 26
£33.95
Dun Holm Challenge - Day 5
Durham Amateur Rowing Club, Green Ln, Old Elvet, Durham DH1 3JU
Mon 25 May 26
£18.00 - £29.00
Midweek Medal Madness - Leon's Birthday Run!
The Last Hop, Unit 2, Thames Edge Court, Clarence Street, Staines, TW18 4SU
Fri 29 May 26
£18.00 - £27.00
Rocky at 50 Run - Wales
Dare Valley Country Park, Aberdare, CF44 7PS
Sat 30 May 26
£18.00 - £34.00
The Ridgeway Challenge (86 Miles)
Berkhamsted, Hertfordshire
Sat 30 May 26
£162.00
5.0
The Maverick Peak District X-Trail
Bakewell, Derbyshire
Sat 30 May 26
£92.84 - £173.40
Phoenix South Wales - Manta Ray Run
Treharris, Mid Glamorgan
Sat 30 May 26
£35.00
The Telford T50 Trail Run
The Unicorn Inn, Holly Road, Little Dawley, Telford TF4 3HZ
Sat 30 May 26
£71.32
Beat the Sunset 50km
Maidenhead, Berkshire
Sat 30 May 26
£65.00
The Ridgeway Chase 60K
Berkhamsted, Hertfordshire
Sat 30 May 26
£92.00
The Ultra Loop Track Challenge - 6, 12, 24 hours
Manchester, Lancashire
Sat 30 May 26 - Sun 31 May 26
£34.00 - £85.00
5.0
Circuit du Sore Legs (Track Event)
Wodson Park Sports Centre, Ware, Herts, SG12 0UQ
Sun 31 May 26
£29.00 - £38.00
Showing 41-58 of 58 results