Two Tunnels Races
Bath, United Kingdom • 16 Aug 2026
Two Tunnels Races in Bath, UK, organized by Relish The Great Outdoors, offer a unique set of events across a city-centre route that includes Bath’s Devonshire Tunnel (408m) and Combe Down Tunnel (1672m). Distances range from 500m Colourburst and 2km Colourburst to 5km (two waves), 10km (multiple waves), City Ticket Half Marathon (multiple waves), Marathon (multiple waves), as well as 50km Solo or Pair and a 5x10km Relay. The tunnels are lit and surfaced and form the longest underground section for any UK distance race, as part of a shared-use path through the city. Start and finish at Brickfields Park; a family-friendly atmosphere with fundraising for Sustrans (£1 per runner). Visit the organization's website for the most recent information.