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Running Calendar near Marlborough 2025-2026

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Explore the top running races near Marlborough for 2025-2026! We've gathered 72 exciting races in the area. Check out our detailed list below to find your next local race.

Half Marathons Marathons Trail Runs Triathlons
May 2026
May
9
Saturday

Collingbourne Races

Trail Run 10 km Half Marathon
May
9
Saturday

The Ridgeway 40

Trail Run 40 mi
May
16
Saturday

Compton Marathon & 16 Mile Challenge

Trail Run 16 mi 27 mi
May
16
Saturday

Semington Slog 10K

Trail Run 10 km
May
20
Wednesday

Cotswolds Lake 62 Evening Triathlon Series

Triathlon
May
23
Saturday

Vale Tridents Open Water Aquathlon

Aquathlon
May
23
Saturday

Cotswolds Lake 62 Spring Events

Triathlon
June 2026
Jun
7
Sunday

Two Tunnels Races

Trail Run 5 km 10 km Half Marathon
Jun
13-14
Sa - Su

Cotswold Way Ultra Challenge

Trail Run 10 km 25 km ... 75 km 100 km
Jun
14
Sunday

The Hampshire Hoppit

Trail Run 10 km Half Marathon Marathon
Jun
20
Saturday

Bowood House Triathlon

Triathlon
Jun
28
Sunday

SOX 10km & Half Marathon

10 km Half Marathon
July 2026
Jul
5
Sunday

The Drop - Bath

10 mi 15 mi
Jul
12
Sunday

Renegade 10km

10 km
August 2026
Aug
6-9
Th - Su

The MTC Thames Challenge

Trail Run 33 mi 47 mi 49 mi 57 mi
Aug
6
Thursday

The MTC Cotswold Ultra

Trail Run 57 mi
Aug
9
Sunday

Newbury Racecourse Half Marathon

5 km 10 km Half Marathon
Aug
9
Sunday

Ramsbury Gold 10k

Trail Run 10 km
Aug
16
Sunday

Two Tunnels Races

Trail Run 5 km 10 km ... Marathon 50 km
Aug
16
Sunday

South West Spartan

Obstacle Run 5 km 10 km Half Marathon
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