World’s Deepest Marathon

Take on an extraordinary challenge: to run the deepest marathon ever run

Date Saturday 25th October, 2025
Distance Marathon
LocationBoliden Garpenberg
Town/CityGarpenberg, Sweden
WebsiteVisit website
Run For CharityGoFundMe Start Fundraising On GoFundMe

View all races for Oct 2025

This will be a true test of mental and physical resilience. Running a marathon is tough, but doing it 1,120 metres below sea level, in total silence and darkness, will push participants to their limits. This is about more than breaking records - it’s about proving what’s possible when we dare to push beyond our perceived boundaries and into the unknown.

My Next Race

Looking for your next big challenge? Find your next race by location, distance, race type or date.

Race Location
Race Distance
Race Type
Select a Date

View all runABC Midlands races

top