Portsmouth Coastal Waterside Marathon

Portsmouth Coastal Waterside Marathon

Sunday, 20 December 2026

Portsmouth, Southsea, UK

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The Portsmouth Coastal Waterside Marathon event on 20 December 2026 includes a full Marathon, Half Marathon and 12km distance.

The Marathon is a flat, multi-terrain course on an out and back route starting and finishing along the Southsea seafront. The route winds along the shores of Langstone Harbour, where the muddy yet magical landscape creates a unique coastal backdrop.

New in 2026, the '12km of Christmas' is designed for runners who want something fun, achievable, and festive — without committing to the half or full marathon.

The event includes plenty of festive spirit, fully loaded aid stations and beautiful coastal views.

Organiser

Believe & Achieve Events

Distances/Events

12K
Half Marathon
Marathon

Location map

The event is based from the Pyramid Centre, Clarence Esplanade.

Please note: the map location may be approximate. Refer to the event website for start lines and course maps.

Disclaimer

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This listing was last manually checked on 30 December 2025.

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