Two Tunnels Races

Event overview

The Two Tunnels Railway Races take place in Bath with start and finish at Brickfields Park (BA2 1LX). The races use the Two Tunnels shared use path under the city, including the Devonshire Tunnel (408 m) and Combe Down Tunnel (1,672 m). The event is scheduled on 22 February 2026, 7 June 2026 and 16 August 2026. The organiser supports Sustrans with a £1 contribution per runner; over £30,000 has been raised to date.

Distances and practical details

• 500 m Colourburst
• 2 km Colourburst
• 5 km
• 10 km Return Ticket and Hilly Ticket options
• Half marathon Return Ticket and Hilly Ticket options
• Marathon
• 50 km Solo and Pair
• 5 x 10 km Relay

Route surfaces vary by ticket type: Return Ticket routes are essentially 100% tarmac with a small grass section at start/finish; Hilly Ticket routes mix tarmac, woodland trail and stone paths; City Ticket routes use tarmac, canal towpath and river path. The 5 km, Return Ticket 10 km, Return Ticket half marathon, 50 km Solo/Pair and 5 x 10 km relay are officially measured and the events are UK Athletics affiliated; the marathon is not officially measured. Cut-offs apply for longer races: a 3 hour limit to start lap 2 of the marathon and an 8.5 hour cut-off for the 50 km. Facilities on site include toilets, coffee and food vans and a bag drop; there are no changing rooms. There is no on-site parking; Odd Down Park & Ride is the recommended car park and a shuttle bus serves the event. Bike racking is provided; buggy runners may use the 5 km, 10 km Return Ticket and Half Return Ticket routes. Medals (10 cm x 10 cm, two-sided) are awarded to finishers of the 5 km and longer distances. Visit the organization's website for the most recent information.