Wye Valley Tunnel Run 2026 (Marathon, Half Marathon, 10km & Colourburst)

Wye Valley Tunnel Run 2026 is a running event in Sedbury featuring colourburst runs, a 10km and half marathon, plus marathon options using the Greenway and Tidenham tunnel.

Wye Valley Tunnel Run 2026 is a distinctive event using the iconic Greenway and the 1.1k Tidenham tunnel. Participants can choose from family-friendly colourburst options as well as longer race distances, with wave-style timing to suit different paces.

Date: Sunday, 19 July 2026
Location: Beachley Rd, Sedbury, Chepstow NP16 7AA, UK

Start times (Sunday, 19 July 2026):

• 500m Colourburst: 9:00 AM
• 2km Colourburst: 9:10 AM
• Tintern Station Marathon: 10:00 AM
• Tintern Station Half Marathon: 10:00 AM
• Valley View Half Marathon: 10:20 AM
• Valley View 10km: 10:45 AM

Entry prices: £10 - £60

• 500m Colourburst: £10
• 2km Colourburst: £12
• 10km: £32
• Half Marathon: £46