

About the event
The Rat Race Castle to Castle 100 Mile, taking place from July 19-21, 2025, offers an unparalleled ultra-running experience that combines Scotland's rich history with its breathtaking natural beauty. Starting at one historic castle and finishing at another, the race covers 100 miles of challenging terrain, with 1,479 meters of elevation gain that will push even the most experienced runners to their limits. Hosted by Rat Race, the event is designed for those seeking a true adventure, with every mile offering a new challenge and a stunning view of the Scottish Highlands. Whether you're an ultra-running veteran or looking to conquer your first 100-mile race, this event promises an unforgettable journey through some of Scotland's most iconic landscapes.
Date:
Sat
Jul 19
2025
Location:
Distance:
Elevation profile:
Rolling
Website:
LinkElevation gain:
Number of participants:
Other distances for this race
Find the best training plan for your goals and the distance you’re planning to run:
Stories from Runnas
Take your running to the next level
From July 19-21, 2025, the Rat Race Castle to Castle 100 Mile challenges ultra-runners to embark on an epic journey across the Scottish Highlands, featuring a demanding 1,479 meters of elevation gain. Organized by Rat Race, this adventure tests endurance as participants traverse rugged landscapes, connecting two historic castles over a grueling 100-mile course.
If you are an official race organiser with any questions about this page, please get in touch: races@runna.com
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