Find 100 mile ultra runs in and around Northern Ireland for 2024/2025 - search by date or place, display on a map or use the advanced search to find your perfect race.
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Ultra-Running at its best: Norn Iron Ultra 100 is a unique 108 mile Ultra run along Northern Irelands famous North Antrim coast, running from Ballintoy to the small village of Gortin in Omagh.