Belfast
Trail Running Calendar near Belfast 2026-2027
Explore the top trail runs near Belfast for 2026-2027! We've gathered 20 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
September 2026
A 10 km mixed terrain race at Clandeboye Estate near Bangor Co Down with a short trail to Helens Tower, finishers medals, refreshments and prizes.
October 2026
Marathon and Half Marathon on 4 October 2026 following the way-marked Newcastle Way through Tollymore, Castlewellan and Murlough to Newcastle beach.
Three mountain skyraces in the Mournes on 10 October 2026, from 20 to 50 km with substantial ascent and time cut-offs.
Nighttime trail and endurance races at Montalto Estate in October 2026, offering 3/6/12 hour challenges plus 5 km and 10 km loop races.
Challenge yourself against nature at the final Bog Run in Castlewellan Forest Park, a muddiest 5k course featuring forest paths, mud pits, and fun obstacles for all ages.
Nav Challenge 4 in the Mourne Mountains is a navigational event in County Dublin on 18 Oct 2026 with an unmarked route, no GPS allowed, and Level B kit required.
November 2026
Trail races and ultras through Tollymore Forest Park and the Mourne Mountains, featuring 10 km charity events, half, marathon, and ultra distances with ITRA points.
Cross country at Six Mile Water Park Ballyclare on 14 November 2026 with junior and senior races up to five miles; chip timed and part of the NI Athletics XC league.
December 2026
Mixed tarmac and forest 5K and 10K runs in Tollymore Forest Park with chip timing, a medal and posted race packs.
January 2027
A technical 10 kilometre trail race through Glenariff Forest Park featuring scenic views, waterfalls and a prize pot in excess of £1,000.
February 2027
A lakeside 5K and 10K in Castlewellan Forest Park with chip timing, medals, posted race packs and series prizes.
March 2027
March 2027 trail event between Carrickfergus Castle and Belfast Castle offering a 52.4 mile ultra or a marathon over Cavehill Carnmoney and Knockagh.
April 2027
A 26.2-mile point to point mountain marathon across the Mournes, summiting Slieve Donard and finishing in Donard Park, Newcastle.
June 2027
Belfast 24 is a weekend community endurance festival in Victoria Park with multiple distances on a 1 mile loop, chip timing, participant kit and awards.
Trail races on the Mourne Way run in the opposite direction in 2027, with Ultra, Marathon and half marathon routes centered on Newcastle and Fofanny Car Park.
July 2027
A summer running festival at Hillsborough Castle and Gardens on 25 July 2027 offering 10K and half marathon routes, charity support, medals and chip timing.