The Quadrathon Challenge
Inishowen, Ireland • 13-16 Aug 2026
Quadrathon Challenge : August 13–16, 2026
The Quadrathon Challenge is a four-day running event held in Inishowen, Donegal, Ireland. The organiser lists separate routes on each day and describes the overall course as a loop covering 105 miles. The event takes place along the Wild Atlantic Way and includes coastal and hill terrain.
Format and distances
Participants can choose to run or walk on one to four days. The event offers both full and half marathon options, with a different course each day.
- Full Marathon (WARRIOR)
- Half Marathon (QUEST)
- 105-mile total loop over four days
Entries open on August 28, 2025, and close on July 28, 2026.
Course and event features
Course descriptions mention scenic coastal views and sometimes hilly terrain. Organiser-listed event features include catering at the finish and finisher medals. The event page also notes options for entries, an entry list, and event terms, including a cancellation and refund policy. The organiser is Extreme North Events. Visit the organization's website for the most recent information.