The Hertfordshire 100

Race facts

• The course covers 161 km.
• It takes place on a Sunday, August 30, 2026 — summer in this part of the world.
• The closest comparable road cycling event is August Bank Holiday Randonax Rides in Greater London, 23 km away, on August 24, 2026.
• 12 of the 12 most similar events take place in the same month.