The Adder Dash

SEP
19
2026
Run a 13 km route through the rolling hills and woods of the South Downs near Lewes to support local wildlife and land conservation efforts.
Sat 19 Sep 2026
13 kilometers

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The Adder Dash

The Adder Dash is a running event taking place in the South Downs near Lewes. The route covers a distance of 13 km and transitions through a landscape of rolling hills, countryside, and wooded areas. The event is hosted at The Old Racecourse, a location that formerly served as a race track and currently features an on-site cafe and sauna.

The event serves as a fundraiser for local environmental causes. Proceeds from the race support South Downs Conservation and the Amphibian and Reptile Conservation Trust. These organizations work to protect the natural habitat of the region, which is home to various British flora and fauna, including the UK's only native venomous snake, the adder. The chalk grasslands and south-facing slopes of the Downs provide an important environment for this species.

Participants navigate the course with a focus on environmental responsibility, following a "leave no trace" policy. After registration, additional options are available for participants, including access to a finish-line sauna and event-specific merchandise. The event is supported by several local sponsors, including a physiotherapy clinic and local hospitality businesses. Visit the organization's website for the most recent information.

  • 13 km
13 km

Events nearby

Obstacle course weekend at Pippingford Park on 26–27 Sep 2026 with Sprint, Super, Beast, Ultra, Kids races and the British OCR Ultra Championship.
A 10 mile, traffic free trail run at Eridge Park on 27 September 2026 featuring steep climbs, muddy sections, route maps and finish-line cake and a pint.
A 5km handicap trail race in Firle on 27 September 2026 with a mostly trail course, a 50 person entry limit, prizes for the top three and village hall facilities.
A timed lap based run at Buchan Country Park in Crawley on 27 September 2026 with distances from 5 km up to ultra and flexible start options. Entry choices include a medal or a lower cost no medal option.
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