For international marathons, check out MarathonRoutes.com
Ireland's race directory

100mile races
across Ireland

2 100mile races listed

100mile races
2 races Map view
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Race County Profile Ascent Date Chart
Robin Hood 100 Nottinghamshire Hilly ↑ 1203m 12 Sep 2026 View ›
UK Ultra Winter on the Downs 100mile East Sussex Very Hilly ↑ 4140m 5 Dec 2026 View ›