Ultra Great Britain® Race Series
Welcome to the Ultra Great Britain Race Series featuring a collection of supported 50 mile, 100km, 100 mile & 215 mile events across England, Scotland and Wales, all with live online GPS tracking through GB Race Tracker.
The title race of the series, Race Across Scotland®, will push runners to the absolute limits, over it’s 215 mile coast to coast route.
RACE ACROSS SCOTLAND® 215 MILE
All ultramarathons lead to the Race Across Scotland 215 mile along Scotland’s Great Trail, the Southern Upland Way! Single stage, coast to coast, continuous race with 12 GB Ultras checkpoints spanning the width of Scotland!
The 50 Mile Ultra Race Series
The 100 Mile Ultra Race Series
Our Other Timed Events
2025 / 2026 Race Calendar
Are you looking to fill your 2025 calendar with ultramarathon events or planning ahead for 2026?
Great, we've got plenty of options to keep you going!
Check out the GB Ultras Race Series and also our Slam and Grand Slam options too!
We've also got a series of training runs to help you get to know our race routes.
- Chester Ultra® 50 Mile - 15th March 2025 / 28th February 2026
- Chester Ultra® 100 Mile - 5th April 2025 / 18th April 2026
- Manchester to Liverpool Ultra 50 Mile - 18th April 2025 / 3rd April 2026
- Pennine Barrier Ultra® 50 Mile - 3rd May 2025 / 2nd May 2026
- Skye Trail Ultra 75 Mile - 24th May 2025 / 23rd May 2026
- Ultra Scotland® 50 Mile - 7th June 2025 / 6th June 2026
- Ultra Scotland® 100 Mile - 7th June 2025 / 6th June 2026
- Ultra Wales® 50 Mile - 21st June 2025 / 20th June 2026
- Hope Trail Festival 12/24/36 hour - 11th - 13th July 2025 / 10th - 12th July 2026
- Beacons Way Ultra 100 km - 26th July 2025 / 25th July 2026
- Beacons Way Ultra 100 Mile - 26th July 2025 / 25th July 2026
- Race Across Scotland® 215 Mile - 9th-13th August 2025 / 8th - 12th August 2026
- Yr Wyddfa Snowdon Ultra® 50 Mile - Saturday 6th September 2025 / 5th September 2026
- Yr Wyddfa Snowdon Ultra® 100 Mile - Saturday 6th September 2025 / 5th September 2026
- Glasgow to Edinburgh Ultra 57 Mile - 11th October 2025 / 10th October 2026
- Cheshire Ring Ultra 100 - 27th September 2025 / 26th September 2026
- Training Runs:
- Chester Ultra 50 & 100 Training Run - 8th February 2025 / 2026 TBC
- Pennine Barrier Training Run - 15th & 16th February 2025
- Beacons Way Training Run - 22nd & 23rd February 2025
- Ultra Scotland / Race Across Scotland Training Run - 1st & 2nd March 2025 AND 22nd / 23rd March 2025
- Ultra Wales Training Run - 17th & 18th May 2025
- Yr Wyddfa Snowdon Training Run - 31st May & 1st June 2025
- Glasgow to Edinburgh Training Run - 12th & 13th July 2025
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