100K ultra runs in UK in June 2025
Find 100k ultra runs near me in UK in June 2025 - search by date or place, display on a map or use the advanced search to find your perfect race.
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Click an event for full event details, location, route, sustainability, what's included and how to enter.
- Sun 1 - Sun 8 Jun
- £199
- Entries close soon
- Sun 1 - Sun 8 Jun
- £199
- Entries close soon
Lake District Ultra Challenge | Full 100km continuous
100km of trails, high passes, stunning scenery, Ambleside, the magnificent Lake Windermere, nature reserves, forests and over 2,500m of ascent. Fully supported all the way with a celebratory finale!
- Chip timing
- Enter online
- GPS tracking
- Mountainous
- Age 18 & over
- 100 km trail running + 2500 m ascent
- Sat 7 - Sun 8 Jun
- £199
- Entries close soon
- Sat 7 - Sun 8 Jun
- £199
- Entries close soon
Lake District Ultra Challenge | Full 100km over 2 days
100km of trails, high passes, stunning scenery, Ambleside, the magnificent Lake Windermere, nature reserves, forests and over 2,500m of ascent. Fully supported with a good night's sleep mid-way.
- Chip timing
- Enter online
- GPS tracking
- Mountainous
- Age 18 & over
- 100 km trail running + 2500 m ascent
- Sat 21 Jun
- £170-£180
- 4 charities
- Sat 21 Jun
- £170-£180
- 4 charities
Race to the King | 100K
Take on the full 100K Race to the King ultra marathon challenge in one go. Fully supported through day and night on a route combining castles and coastal scenery.
- Chip timing
- Enter online
- GPS tracking
- Undulating
- Age 18 & over
- 100 km trail running + 4619 ft ascent
- Sat 21 - Sun 22 Jun
- £199
- 16 charities
- Sat 21 - Sun 22 Jun
- £199
- 16 charities
Cotswold Way Ultra Challenge | Full 100km continuous
Head into the rolling green hills of the Cotswolds with leg-testing climbs and breathtaking views on your 100km mission, with stops every 12-13km and a halfway break in Wotton, you're fully supported.
- Chip timing
- Enter online
- GPS tracking
- Hilly
- Age 18 & over
- 100 km trail running + 2250 m ascent
- Sat 21 - Sun 22 Jun
- £199
- 16 charities
- Sat 21 - Sun 22 Jun
- £199
- 16 charities
Cotswold Way Ultra Challenge | Full 100km over 2 days
Head into the rolling green hills of the Cotswolds with leg-testing climbs and breathtaking views on your 100km mission in daylight only with the benefit of a mid-way break and good night's sleep.
- Chip timing
- Enter online
- GPS tracking
- Hilly
- Age 18 & over
- 100 km trail running + 2250 m ascent
- Sat 28 - Sun 29 Jun
- £199
- 16 charities
- Sat 28 - Sun 29 Jun
- £199
- 16 charities
Peak District Ultra Challenge | Full 100km continuous
Take on the full 100km in a figure-of-eight route through the north and south of the Peak District with stops every 12-13km and whatever support you need to get you to the finish line celebration!
- Chip timing
- Enter online
- GPS tracking
- Undulating
- Age 18 & over
- 100 km trail running + 2150 m ascent
- Sat 28 - Sun 29 Jun
- £199
- 16 charities
- Sat 28 - Sun 29 Jun
- £199
- 16 charities
Peak District Ultra Challenge | Full 100km over 2 days
Take on the full 100km in a figure-of-eight route through the north and south of the Peak District in daylight with a good night's rest and full support to get you to the finish line celebration!
- Chip timing
- Enter online
- Undulating
- Hilly
- Age 18 & over
- 100 km trail running + 2150 m ascent
- Sat 7 Jun
Ultra Scotland 50
- 56 miles trail running + 2447 m ascent