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Endurance races calendar in August 2025 - 2026 in the United Kingdom
Speyside Way Ultra
Ballindalloch, United Kingdom
16 Aug, 2025 (Sat)
Trail running
35 mi, 100 km
ATW Oundle Triathlon
Oundle, United Kingdom
17 Aug, 2025 (Sun)
Aquabike
600 m
25 km
This event also offers:Triathlon
From
69 USD
The Beast 108 mile Lake District Sportive
Lancaster, United Kingdom
17 Aug, 2025 (Sun)
Cycling
108 mi
ATW Midweek Dorney Triathlon - August
Windsor SL4 6FJ, UK, United Kingdom
27 Aug, 2025 (Wed)
Aquabike
750 m
20 km
This event also offers:Triathlon
From
76 USD
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Ring o' Fire
Holyhead, United Kingdom
29 Aug, 2025 (Fri)
Trail running
35.7 mi, 135 mi
Mendip Marauder 50 Miler
Frome, United Kingdom
30 Aug, 2025 (Sat)
Trail running
30 mi, 50 mi
Punk Panther Takes the Hindmost
Swinsty & Fewston Reservoir Car Park, United Kingdom
30 Aug, 2025 (Sat)
Trail running
10 km
Roadford Lake Triathlon - Autumn
Broadwoodwidger, United Kingdom
31 Aug, 2025 (Sun)
Aquabike
1500 m
46 km
750 m
20 km
This event also offers:Triathlon, Aquathlon
From
55 USD
Bike Bath - Cotswolds
Tetbury, United Kingdom
31 Aug, 2025 (Sun)
Cycling
28 mi, 52 mi, 74 mi
Hardmoors 26.2 Roseberry Topping
Roseberry Topping, United Kingdom
31 Aug, 2025 (Sun)
Trail running
10 km, 21.097 km, 42.195 km
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