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15Nov2026
Conwy Half Marathon
Race the Welsh coast beneath Conwy Castle and Snowdonia
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21Mar2027
Swansea Half Marathon
Fast flat coastal route from the city out to the Welsh sea
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4Apr2027
Brighton Marathon
Big-city seaside marathon along the Brighton front
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4Apr2027
Falmouth Half Marathon
Scenic coastal loop around Pendennis Headland with stunning bay views
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24Apr2027
Blackpool Festival of Running
Coastal Blackpool streets host this multi-distance seaside festival
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24Apr2027
Pembrokeshire Coastal Ultra
Rugged Pembrokeshire coastline from 10K to full ultra
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4Jul2027
Wales Marathon
The only fully closed road marathon in Wales, finishing in Tenby
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12Sep2027
Great North Run
The world's biggest half marathon, Tyne to sea
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Oct2027
Hastings Seafront 10K
Runs the length of Hastings' seafront promenade
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Oct2027
The Isle of Wight Marathon
Runs the Isle of Wight's Solent coastline
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Oct2027
Weston Super Half
Along Weston-super-Mare's Victorian seafront
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Oct2027
Bournemouth Half Marathon
Seaside half marathon past Bournemouth and Boscombe piers
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Oct2027
Maverick Jurassic Coast Trail Run
A coastal trail race with steep climbs along the Jurassic Coast
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17Oct2027
Great South Run
A 10-mile coastal classic with salty air and sea views
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7Nov2027
Anglesey Trail Half Marathon & 10K
Woodland trails past Llanddwyn Island toward Snowdonia views
More collections in the UK
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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This list is edited by RunCalendar and updated as the calendar moves. Last updated 5 November 2026.