100K ultra runs in Oxfordshire
Find 100k ultra runs near me in Oxfordshire for 2025/2026 - filter by date or location, display on a map or use the advanced search to find your perfect race.
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- Sat 11 Jul 2026
- £180
- 7 charities
- Sat 11 Jul 2026
- £180
- 7 charities
Race to the Stones | 100K Non-stop
Explore the Ridgeway, Britain’s oldest road, along a remarkably isolated and unspoilt corner of Southern England with sweeping chalk downs, ancient forests and the Avebury Standing Stones.
- Chip timing
- Enter online
- GPS tracking
- Undulating
- Age 18 & over
- 100 km trail running + 3704 ft ascent
- Sat 11 Jul 2026
- £255
- 4 charities
- Sat 11 Jul 2026
- £255
- 4 charities
Race to the Stones | 100K Over Two Days
Explore the Ridgeway, Britain’s oldest road, along a remarkably isolated and unspoilt corner of Southern England with sweeping chalk downs, ancient forests and the Avebury Standing Stones.
- Chip timing
- Enter online
- GPS tracking
- Undulating
- Age 18 & over
- 100 km trail running + 3704 ft ascent
- Sat 11 Jul 2026
- £165
- Sat 11 Jul 2026
- £165
Race to the Stones | 100K Two Days no camping
Explore the Ridgeway, Britain’s oldest road, along a remarkably isolated and unspoilt corner of Southern England with sweeping chalk downs, ancient forests and the Avebury Standing Stones.
- Chip timing
- Enter online
- GPS tracking
- Undulating
- Age 18 & over
- 100 km trail running + 3704 ft ascent