There are 5 upcoming ultra races in County Antrim listed. Next up: EAMS: Halloween Frightener 2026 (Sunday, 1 November 2026), Castle to Castle Ultra (Saturday, 20 March 2027), ACP 100k, NIURA 50k, 100k & Relay (Sunday, 21 March 2027).
Upcoming races only, soonest first. Confirm dates and entry details with the organiser.
Newtownabbey · Loughshore Park, Shore Road, Newtownabbey, BT37 0PY
Six-hour coastal running challenge from Loughshore Park towards Gideons Green. Marked 10km, half-marathon and marathon options, with longer distances possible. An early 07:00 start is available for marathon runners needing longer than six hours.
£34.29
See entry options & fees
Carrickfergus · Carrickfergus Castle
A 52.4-mile out-and-back ultra from Carrickfergus Castle to Belfast Castle and back, over Cavehill, Carnmoney Hill and Knockagh. Fourteen-hour cut-off. Route navigation uses the supplied GPX; there is no additional course signage.
£70
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Belfast · Victoria Park, 4 Kyle Street, Belfast, BT4 1LS
Ultra Running organised by NIURA (Northern Ireland Ultra Running Association) in Belfast. Minimum age: 18 or older. Online entry deadline: Saturday 20th February 2027. Published meeting-location reference: ///call.magma.moth.
£57.75–£78.75
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Belfast · Victoria Park, Belfast
One-mile park laps for a 24-hour solo or relay race and a 100-mile race, starting at noon. The Saturday marathon starts at 15:00; 50km and 100km races start at 18:00. The weekend continues into Sunday.
£59–£98
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Belfast · Big Fish, Belfast
Cross-border ultra starting at the Big Fish in Belfast and finishing in Dublin in the Republic of Ireland. The event has a thirty-hour cut-off, GPS tracking and required safety kit. Participants must be at least 18. Exact final distance and route are supplied by the organiser.
£150
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