Swansea Half Marathon

About the race

The Mizuno Swansea Half Marathon on 21 March 2027 is a coastal half marathon that runs from the city out along Swansea Bay towards the seaside village of Mumbles. The event uses a largely flat course with a stated elevation gain of 36 metres and features around five miles of coastline views. The route passes several local landmarks including Swansea Arena, Brangwyn Hall, Swansea Castle and Swansea Museum. The race starts and finishes on Oystermouth Road (SA1 1SN) and is held on fully closed roads.

The event is UKA licensed and AIMS certified, and organisers provide pacers across a range of finish times. Facilities and race services include Brecon Carreg water stations approximately every three miles and at the finish, toilets and female-only toilets on course, urinals at the race village, a bag drop at the LC (Museum Green doors), and medical cover at the start, finish and along the route. Postal race packs are sent about 1 to 2 weeks before the race; race pack collection is available Thursday to Saturday before the event and there is no race day collection. Entry details include no on-the-day registration, general entries closing at midnight on 31 January 2027 unless capacity is reached, and transfer and deferral options via the Njuko participant dashboard. Virtual entries are available, require participants to be 17 or over, accept treadmill runs and multiple runs submitted as one image collage, and require evidence by 31 December 2026. Visit the organization's website for the most recent information.

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