Endurance Life Suffolk 50K Ultramarathon

Endurance Life Suffolk 50K Ultra Marathon

Experience the sweeping beauty of the East Anglian coastline. Brought to you by the highly acclaimed Endurancelife team, the Suffolk 50K is a spectacularly fast, incredibly scenic and highly runnable ultramarathon set within a designated Area of Outstanding Natural Beauty (AONB).

Part of the legendary Coastal Trail Series, this event offers a stark contrast to the mountainous, heavily elevated ultras of the North and West. Do not let the lack of massive hills deceive you, though; what this course lacks in vertical climbing, it more than makes up for with challenging underfoot conditions and a blistering pace. Whether you are hunting for a 50K personal best or stepping up to the ultra distance for the very first time, the Suffolk coast provides a brilliant testing ground.

Course

Operating out of the historic and atmospheric coastal village of Dunwich, the route showcases the absolute best of the Suffolk Coast & Heaths AONB.

• The Terrain: You will experience a deeply varied, multi-terrain challenge. The route weaves through the ancient woodlands of Dunwich Forest, crosses stunning purple heathlands, and navigates the world-famous RSPB Minsmere nature reserve.
• The Coastal Challenge: The true test of the Suffolk 50K comes when you hit the beach. You will be required to run on stretches of loose sand and energy-sapping shingle. Managing your leg fatigue on these coastal sections is the key to maintaining a strong overall pace.
• The Elevation: This is one of the flattest ultramarathons in the UK. With minimal elevation gain across the entire 50km distance, it is a course designed for pure running. However, the continuous, unrelenting flat running means your legs are rarely given a break from the repetitive motion, requiring an excellent pacing strategy.

The entire 50K route is fully waymarked. While carrying a map or GPX file is a mandatory safety requirement, the exceptional event signage allows you to switch your brain off, enjoy the sea breeze and focus entirely on your running.

Why Run the Endurancelife Suffolk 50K?

If you are intimidated by the severe cut-off times and massive climbs of mountain ultras, this is the perfect gateway into the world of ultramarathons. It offers an incredibly accessible, highly supported environment where you can confidently tackle the 50km distance. Conversely, for elite and experienced runners, the flat profile presents a rare opportunity to run a blisteringly fast ultra and smash your 50K PB. It is a wild, beautiful, and exceptionally well-organised day out on the East Coast. For full details, please visit the official race website.