UK Triathlon Racing: June and July 2026 Events Guide
June and July are the heart of the UK triathlon calendar. From one of Britain’s most iconic venues to the country’s biggest full-distance championships, there’s a race for every ability level over the next two months. Here’s your essential guide to UK triathlon events in June and July 2026.
June 2026
Blenheim Palace Triathlon — 6–7 June, Woodstock, Oxfordshire
The UK’s biggest triathlon, operated by Supertri at the stunning Blenheim Palace grounds. Distances from SuperSprint (400m/13.3km/2.9km) to Sprint (750m/19.8km/5.4km), plus relay and duathlon formats. Jonny Brownlee competing in the elite field. Entries: by.supertri.com
Royal Windsor Triathlon — 14 June, Windsor, Berkshire
A classic sprint and Olympic distance event set against the backdrop of Windsor Castle and the Thames. One of the most picturesque triathlon venues in the country. Popular with London-based athletes.
Middle Distance Triathlon Championship — 28 June, Northumbrian, North England
The 2026 Triathlon England Middle Distance Championship, hosted at The Northumbrian venue. A competitive open-water swim, challenging bike leg, and demanding run for athletes targeting the National Age Group title at the 70.3 format.
July 2026
Outlaw Holkham Weekend — 4 July, Wells-next-the-Sea, Norfolk
Set on the Norfolk coast, Outlaw Holkham is a full and middle distance event with a distinctive coastal atmosphere. The run course along Wells beach is one of UK triathlon’s most memorable experiences.
Sutton Park Triathlon — 11 July, Sutton Coldfield, Birmingham
A well-established Sprint and Standard distance event in the West Midlands, using the lake at Sutton Park. Good course for PB attempts on a flat, fast bike leg.
Ripon Triathlon — 11 July, Ripon, North Yorkshire
A popular community event in the Yorkshire countryside with sprint and standard distances. Well-organised and a favourite for athletes in the north of England.
Croyde Ocean Triathlon — 12 July, Croyde, Devon
One of the UK’s most distinctive races. An ocean swim (1.5km) in the Atlantic at Croyde Bay, a 38km road cycle across North Devon, and a 12km off-road run on the coastal path. Not one for beginners, but unforgettable for experienced athletes.
London T100 Triathlon — 25–26 July, Hyde Park, London
The T100 elite professional series comes to London, with age-group waves across the weekend. The Hyde Park course (1km swim / 40km bike / 10km run) provides a rare chance to race the same course as the world’s best long-course triathletes. Entries: t100triathlon.com/london
Outlaw Original — Long Distance Triathlon Championships — 26 July, Nottingham
The 2026 inaugural Long Distance Triathlon England Championships, hosted at the Outlaw Original event in Nottingham. Full iron-distance racing at one of the UK’s most respected full-distance events.
Planning Tips for the Summer Race Season
- Book accommodation early for popular events like Blenheim and the London T100 — nearby hotels sell out months in advance.
- Check transition opening and closing times in advance — some events have strict equipment drop deadlines the day before.
- Review the course guide for each event. UK open water temperatures in June and July are typically 15–19°C — wetsuit rules vary by race and category.
- Register for the race briefing and read the athlete guide in full. Blenheim and the T100 both have detailed rules packs covering drafting, transition, and equipment.
