50K ultra runs in UK
Find 50k ultra runs near me in UK for 2025/2026 - search by date or place, display on a map or use the advanced search to find your perfect race.
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- Sun 17 May 2026
- £75-£80
- Sun 17 May 2026
- £75-£80
Keswick Mountain Festival | adidas TERREX 50K Trail Ultra Marathon
The ultra is graded ‘very hard’ and one to get into your ultra running calendar if you’re looking for UTMB index runs where you can bag points. Includes Full Weekend Festival Ticket in the price!
- Newcomers
- Music
- Chip timing
- Mountainous
- Event village
- Age 18 & over
- 50 km trail running + 1995 m ascent
- Sat 23 May 2026
- £33-£38
- Sat 23 May 2026
- £33-£38
Farmmageddon | Ultra Marathon
Can you survive Farmmageddon? Run an ultra over a fantastic 5.3K loop through the lovely grounds of Hyde Hall Farm as part of the Farmmageddon endurance weekend.
- Enter online
- Undulating
- Traffic free
- Age 18 & over
- 32 miles trail running + 164 ft ascent
- Sat 6 Jun 2026
- £53.50
- Sat 6 Jun 2026
- £53.50
The Llangollen 50K
A truly beautiful area of North Wales! The route uses two way-marked 15-mile linear routes either side of the river, to create a spectacular, challenging excursion in and above the valley.
- Newcomers
- Enter online
- Event village
- Rural
- Age 21 & over
- 50 km trail running + 5435 ft ascent
- Sat 20 Jun 2026
- £70
- Sat 20 Jun 2026
- £70
Race to the King | Castle 50K
The ideal ‘next step’ on your ultra journey! Following an undulating course along the South Downs Way, the route passes by Arundel Castle before returning to West Dean via the Monarch's Way.
- Chip timing
- Enter online
- GPS tracking
- Hilly
- Age 18 & over
- 50 km trail running + 1043 m ascent
- Sat 20 Jun 2026
- £70
- Sat 20 Jun 2026
- £70
Race to the King | Coastal 50K
Flat and runnable without skimping on scenery, it offers spectacular views around Chichester Harbour, through the ancient fishing village of Bosham before gently climbing back onto the South Downs.
- Chip timing
- Enter online
- GPS tracking
- Undulating
- Age 18 & over
- 50 km trail running + 461 m ascent
- Sat 19 Jul
Humanity Direct Chiltern Challenge | Ultra
- 50 km road running + 870.69 m ascent
- Sat 16 Aug
Foxton Hound Ultras | 50K
- 50 km trail running + 510 m ascent
- Sat 4 Oct
London South East Spartan Trifecta Weekend | Ultra 50K - Saturday
- 50 km multi terrain running
- Sat 4 Oct
Run to the Sea Bournemouth
- 50 km multi terrain running + 299 m ascent
- Sat 11 Oct
Bennachie Ultra Marathon & Trail | Ultra Marathon
- 31 miles trail running + 5000 ft ascent
- Sat 1 Nov
Chiltern Ridge Winter 50K
- 50 km trail running + 800 m ascent