Cowman Triathlon Series | 2026
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Sun, 2nd Aug 26 TBC
Olney
Bucketlist
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Race Information
A triathlon festival in Milton Keynes with full, half, sprint & multi‑sport challenges.
1000 Participants
Challenging
Location
Emberton Country Park
(52.14185, -0.7056918999999999)
(52.14185, -0.7056918999999999)
About Cowman Triathlon Series | 2026
2nd Aug 26 - Olney
A multisport festival offering Middle 1.9km swim, 90km bike, 21.1km run, Standard ‘Calfman’ 1.5km/40km/10km, and Sprint ‘Stampede’ 750m (0.75km)/20km/5km) triathlons, plus Aquabike, Aquathlon, and Bike‑Run challenges with relay options. All feature scenic lake swims, rural bike loops, and mixed-terrain runs at Emberton Country Park.
Stampede Aquathlon
TBC
Swimrun - 5.75 km
750m (0.75km) swim | 5km run.
Sun, 2nd Aug 26 £63
£63
Coming Soon!
Stampede Aquabike
TBC
Aquabike - 20.75 km
750m (0.75km) swim | 20 km bike.
Sun, 2nd Aug 26 £63
£63
Coming Soon!
Stampede Bike/Run
TBC
Triathlon - 25 km
20km bike | 5km run.
Sun, 2nd Aug 26 £63
£63
Coming Soon!
Stampede Triathlon
TBC
Triathlon - 25.75 km
750m (0.75km) swim | 20km bike | 5km run.
Sun, 2nd Aug 26 £73.50
£73.50
Coming Soon!
Calfman Aquabike
TBC
Aquabike - 41.5 km
1.5 km swim | 40 km bike.
Sun, 2nd Aug 26 £73.50
£73.50
Coming Soon!
Calfman Bike/Run
TBC
Triathlon - 50 km
40km bike | 10km run.
Sun, 2nd Aug 26 £73.50
£73.50
Coming Soon!
Calfman Triathlon
TBC
Triathlon - 51.5 km
1.5km swim | 40km bike | 10km run.
Sun, 2nd Aug 26 £84
£84
Coming Soon!
Cowman Aquabike
TBC
Aquabike - 91.9 km
1.9km swim | 90km bike.
Sun, 2nd Aug 26 £94.50
£94.50
Coming Soon!
Cowman Bike/Run
TBC
Triathlon - 111.1 km
90km bike | 21.1km run
Sun, 2nd Aug 26 £94.50
£94.50
Coming Soon!
Cowman Triathlon
TBC
Triathlon - 113 km
1.9km swim | 90km bike | 21.1km run.
Sun, 2nd Aug 26 £136.50
£136.50
Coming Soon!
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Hydration Stations
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