Big East Triathlon

Welcome to the Big East Triathlon 7th Anniversary! The event will take place on Sunday 21st May 2017 at Bradwell Marina in Bradwell Waterside, Essex, England. The triathlon runs alongside the Tour of the Dengie Cycle Sportive & Fun Ride.

Athletes swimming on Big East Triathlon triathlons

£66.50 - £121.50
Event Time:
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The Big East Triathlon is set in an ideal location for triathlon and is great preparation for Ironman, the season ahead, or anyone in search of a new challenge. There are two distances to choose from: Challenge Distance and Middle Distance.

The event consists of an Open Water Swim in the River Blackwater, Cycle around the quiet and scenic roads of the Dengie Peninsula and finishes with an inspirational lapped Run around the sea wall and marshes passing the historic St Peters Chapel. The Big East Triathlon has already established itself as a true classic!

Entries Open for 2017!


Race Info

Challenge Distance: 800m Swim / 43km Cycle / 10km

Run Middle Distance: 1.6km Swim / 82km Cycle / 20km

Zone 3 Swim (Challenge 800m / Middle 1.6km)

Deep water start in the tidal River Blackwater. The course is a unique experience in and among the moored boats and provides good viewing opportunities for spectators on the sea wall and run to transition. The triathlon starts at 8:00am. Middle Distance athletes complete 2 laps of the course and Challenge Distance athletes complete 1 lap. Water safety marshals will be present with motorised boats & canoes. Please note this is a tidal river and is a challenging swim, much more so than a typical open water or pool swim. Wetsuits are compulsary. Swim cut-off strictly 9:10am.

Cycle (Challenge 43km / Middle 82km)

The cycle course takes athletes away from Bradwell Waterside and onto the quiet scenic roads of the Dengie Peninsula. Here you will pass through small towns and villages with traditional weatherboard homes, negotiate the Burnham Bends and experience a fast and flat course over the marshes. Middle Distance athletes will complete 2 laps of the course and Challenge Distance athletes 1 lap.

Hi-Tec Run (Challenge 10km / Middle 20km)

The run is held over a truly fantastic course. Athletes will run out of Bradwell Waterside past the old airfield and RAF memorial before heading through Bradwell on Sea towards the coast. St Peters Chapel will become visible as you retrace the steps of religious pilgrims from as far back as 654AD. The course then follows the sea wall, popular with walkers, before passing the decommissioned nuclear power station and returning to Bradwell. Surface is a mixture of paved roads, trail and gravel track with some short narrow sections on the sea wall. Middle Distance athletes need to complete 2 laps and Challenge Distance athletes 1 lap if they are to make it to the finish line and the applause of the crowd. Please remember to always listen to marshals instructions... they have given up their time for your benefit!

Event Location: Bradwell Marina, Waterside, Bradwell-on-Sea, CM0 7RB