South Downs National..

Half Marathon Calendar near South Downs National Park 2025-2026

Name: London South East Spartan Weekend
Start: 2026-09-26
End: 2026-09-27
Location: Uckfield

Monthly updates for South Downs National Park

Get new running races (and updates) in your inbox every month.

Explore the top half marathons near South Downs National Park for 2025-2026! We've gathered 49 exciting races in the area. Check out our detailed list below to find your next local race.

September 2026

Sep

26-27

Sa - Su

London South East Spartan Weekend

Uckfield | 28 mi from South Downs National Park

Obstacle Run 5 km 10 km Half Marathon 50 km

October 2026

Oct

The Dark Downs

Lewes | 24 mi from South Downs National Park

Trail Run Half Marathon 50 km

Oct

Beat Box Hill 50k

Tadworth | 28 mi from South Downs National Park

Trail Run Half Marathon 31 km 50 km

Oct

Running GP at Goodwood Motor Circuit Races & Duathlons

Westerton | 10 mi from South Downs National Park

5 km 10 km ... Marathon 50 km

November 2026

Nov

South Downs Trail Run

Chichester | 12 mi from South Downs National Park

Trail Run 12 km 17 km Half Marathon

Nov

Gosport Half Marathon

Gosport | 26 mi from South Downs National Park

Half Marathon

Nov

Sussex Downs Trail Run

Plumpton | 21 mi from South Downs National Park

Trail Run 11 km 16 km Half Marathon

December 2026

Dec

Box Hill Vertical KM

Dorking | 22 mi from South Downs National Park

Trail Run 13 mi

Dec

Running GP at Goodwood Motor Circuit Races & Duathlons

Westerton | 10 mi from South Downs National Park

5 km 10 km ... Marathon 50 km