Find 50k ultra runs in and around Hertfordshire - filter events by date, display on a map or use the advanced search to find your perfect race.
Take part in the 2023 Fireworks Festival of Running
Take part in the 2023 Fireworks Festival of Running. This is a 6hour PM event.
The “Lea Valley 50 km” is a fast 50 km from Welwyn Garden City to Hackney Wick in East London.