100K ultra marathons in United Kingdom
21 races
Race to the King
Jun 21, 2025 (Sat)
Arundel, South East, United Kingdom
1 - 2.1
Cotswold Way Challenge
Jun 21-22, 2025 (Sat-Sun)
Bath, South West, United Kingdom
1.8 - 2.1
Race to the Stones
Jul 12-13, 2025 (Sat-Sun)
Marlborough, South West, United Kingdom
1 - 2
Lakeland Trails Ambleside 100K, 55K, 23K and 14K
Jul 12, 2025 (Sat)
Ambleside, North West, United Kingdom
Saint Cuthbert's Way Ultra
Jul 19, 2025 (Sat)
Melrose, Scotland, United Kingdom
Paddy Buckley Round
Jul 22, 2025 (Tue)
Capel Curig, Wales, United Kingdom
Stour Valley Path 100K Ultra Run
Aug 9, 2025 (Sat)
Newmarket, East of England, United Kingdom
1.1 - 2
Speyside Way Ultra
Aug 16, 2025 (Sat)
Ballindalloch, Scotland, United Kingdom
Leeds Country Way in a Day 100K
Sep 13, 2025 (Sat)
Calverley, Yorkshire, United Kingdom
Peak District Challenge
Sep 19-20, 2025 (Fri-Sat)
Hathersage, East Midlands, United Kingdom
1.1 - 2.7
Yorkshire 3 Peaks 70/100km Ultra
Sep 20, 2025 (Sat)
The Market House Hawes, Yorkshire, United Kingdom
1.2 - 1.5
Pilgrims' Ultra
Sep 20, 2025 (Sat)
Holy Island, North East, United Kingdom
Ranger Ultras High Peak 70/100km Ultra
Oct 18, 2025 (Sat)
Whaley Bridge, East Midlands, United Kingdom
Norm's Helium Loops
Mar 21, 2026 (Sat)
Devon, South West, United Kingdom
Northern Traverse
Mar 28-Apr 1, 2026 (Sat-Wed)
St Bees, North West, United Kingdom
1.3 - 3.3
£85 - £899
Canalathon Ultra
Mar 29, 2026 (Sun)
West Yorkshire, Yorkshire, United Kingdom
ATW Mallory Race Circuit 50K and 100K
May 2, 2026 (Sat)
Mallory Park Circuit, Church Road, Kirkby Mallory, Leicestershire, LE9 7QE, East Midlands, United Kingdom
London 100
May 9, 2026 (Sat)
Greater London, London, United Kingdom
Ultra-Trail Snowdonia
May 15-16, 2026 (Fri-Sat)
llanberis, Wales, United Kingdom
1.5 - 2.8
Wessex Ridgeway Relay
May 17, 2026 (Sun)
Tollard Royal, South West, United Kingdom
Devon Coast to Coast Ultra & Marathon
May 17, 2026 (Sun)
Lynmouth, South West, United Kingdom
Showing 1 - 21 of 21 events