Two Tunnels Races

AUG
16
2026
Experience Bath's Two Tunnels run along restored railway paths, choosing distances from 500 m Colourburst to marathon and ultras. Organised by Relish The Great Outdoors with Sustrans support, this popular community event is sold out.
Sun 16 Aug 2026
50 kilometers Marathon Half Marathon 10 kilometers 5 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

Event overview

Two Tunnels - August 2026 is a running event in Bath on Sunday 16 August 2026. The event is organised by Relish The Great Outdoors and starts and finishes at Brickfields Park, The Hollow, Twerton, Bath, BA2 1LX. Tickets for the event are currently sold out.

The organiser supports Sustrans by contributing £1 per runner. Fundraising options are offered and, where applicable, participants receive a running vest and other items. Over £30,000 has been raised to date for Sustrans.

Route and tunnels

The course follows the converted Somerset & Dorset Railway shared use path through two parallel tunnels beneath Bath. The Devonshire Tunnel is 408 m long and the Combe Down Tunnel is 1672 m long. Both tunnels are described as well lit and well surfaced. The tunnels were reopened to public use in 2013 after restoration work led by the Two Tunnels Group and Sustrans.

Distances

  • 500 m Colourburst
  • 2 km Colourburst
  • 5 km
  • 10 km (return)
  • Half marathon (three different routes)
  • Marathon
  • 50 km solo and 50 km pair
  • 5 x 10 km relay

Entries are organised into multiple wave starts for several distances. Visit the organization's website for the most recent information.

50 km
5 X 10km Relay
50 km
50km Pair
50 km
50km Solo
Marathon
Marathon Wave 4
Marathon
Marathon Wave 3
Marathon
Marathon Wave 2
Marathon
Marathon Wave 1
Half Marathon
City Ticket Half Marathon Wave 1
Half Marathon
City Ticket Half Marathon Wave 2
Half Marathon
City Ticket Half Marathon Wave 3
Half Marathon
City Ticket Half Marathon Wave 4
Half Marathon
City Ticket Half Marathon Wave 5
Half Marathon
City Ticket Half Marathon Wave 6
10 km
Return Ticket 10km Wave 1
10 km
Return Ticket 10km Wave 2
10 km
Return Ticket 10km Wave 3
10 km
Return Ticket 10km Wave 4
10 km
Return Ticket 10km Wave 5
10 km
Return Ticket 10km Wave 6
10 km
Return Ticket 10km Wave 7
5 km
5km Wave 1
5 km
5km Wave 2
Colourburst 2km
Colourburst 500m