All UK half marathons

Half Marathons / Northern Ireland

Norn Iron 100 Half Marathon

Ballintoy, County Antrim · Northern Ireland

Organised by We Run Wild NI

Norn Iron 100 Half Marathon is an individual half-marathon event in Ballintoy.

Upcoming edition

29 May 2027

Surface: Trail
Published distance
Half marathon

Entry status: open

Fixed-distance half marathon

Start: Ballintoy

Start · approximate race area. Approximate race area. Check the organiser’s website for the exact start and race-day directions.

Location evidence

Current organiser half-marathon entry explicitly starts in Ballintoy and finishes at Portballintrae. Use village representative point. Do not infer that this half shares the 100-mile quarry start.

Location checked 2026-09-14.

Official organiser-designated trail half marathon; published distance retained without implying road certification.

Current 2027 official entry confirms 29 May and Ballintoy start to Portballintrae. 2026 race ran opposite direction on exceptional date; old start not reused.

Sources checked 14 September 2026. Entry availability can change.

Official sources

Map precision: approximate event venue/locality. Current organiser half-marathon entry explicitly starts in Ballintoy and finishes at Portballintrae. Use village representative point. Do not infer that this half shares the 100-mile quarry start.

Organiser event page (opens in a new tab)