Cowman Triathlon
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Event overview
The Cowman Triathlon takes place on 2 August 2026 at Emberton Country Park, Milton Keynes (Olney Road, Emberton, Olney MK46 5FJ). The event includes triathlon, aquabike, aquathlon and bike-run options across multiple race lengths. The organiser provides fully marked routes, marshal and medical support on course, chip timing, live online results and professional photography. Race packs must be collected during registration at Race HQ on the day before or the morning of the event. Parking is available inside Emberton Country Park; athletes receive free park entry while other visitors pay on arrival. Overnight camping at the park is available.
Distances and entry rules
- Cowman (Middle) - 1.9K swim / 92K bike / 21.1K run
- Cowman Aquabike - 1.9K swim / 92K bike
- Cowman Bike/Run - 92K bike / 21.1K run
- Calfman (Standard) - 1.5K swim / 40K bike / 10K run
- Calfman Aquabike - 1.5K swim / 40K bike
- Calfman Bike/Run - 40K bike / 10K run
- Stampede (Sprint) - 750m swim / 20K bike / 5K run
- Stampede Aquabike - 750m swim / 20K bike
- Stampede Aquathlon - 750m swim / 5K run
- Stampede Bike/Run - 20K bike / 5K run
Entry notes: Cowman distances require age 18+, Calfman 17+, Stampede 15+ (parental consent required for 15 year olds). Relay entries are available for some distances. All participants must hold British Triathlon membership or purchase a single-use race pass; each non-member on a relay team must have their own pass. Visit the organization's website for the most recent information.
