On 10 October 2026, Endurancelife Suffolk brings the Coastal Trail Series to the quiet seaside village of Dunwich, offering four distances: 10km, half marathon, marathon and a roughly 52km ultra. The routes weave through a protected landscape managed by conservation bodies, combining pine forest tracks, open heath and moorland, grassy paths, sea walls and short shingle or sand sections, with only minimal elevation gain. Despite being off-road, the courses are described as very flat and fast by Endurancelife standards, making them accessible for first-time trail runners while still giving longer-distance specialists a quick, scenic challenge. With big skies, long straight sections and views over marshes and the North Sea, it feels remote and peaceful without straying far from civilisation, and forms part of the broader Coastal Trail Series season leaderboard.
Races
The Suffolk 10K on 10 October 2026 starts and finishes in Dunwich, a 6.1-mile trail race with roughly 85 m of climbing organised by Endurancelife on a compact loop of the same forest and coastal tracks, offering an approachable entry into the Coastal Trail Series with big scenery and a friendly vibe.
The Suffolk Half Marathon is also held on Saturday 10 October 2026 in Dunwich, Suffolk, a ~13.5-mile course with about 160 m of ascent organised by Endurancelife, giving runners a fast, moderately technical blend of forest, moorland and coastal trail that’s ideal for chasing a trail PB.
The Suffolk Marathon runs on 10 October 2026 from Dunwich, a ~26.7-mile trail marathon with around 288 m of climbing organised by Endurancelife on the same peaceful coastal terrain of woodland tracks, open heath and shoreline paths that make this one of the series’ quickest marathon routes.
The Suffolk Ultra takes place on Saturday 10 October 2026, organised by Endurancelife Ltd from Dunwich, Suffolk, UK, covering about 32.7 miles with roughly 344 m of ascent on an extremely flat-by-series-standards loop through forest, moorland, grass and beach within a sensitive landscape managed by Natural England, the RSPB and the National Trust.
Weather based on historical averages.
FAQs
What is the Endurancelife Suffolk 10K?
How long is the Endurancelife Suffolk 10K?
Where does the Endurancelife Suffolk 10K take place?
What is the elevation gain of the Endurancelife Suffolk 10K?
How can I prepare for the Endurancelife Suffolk 10K?
How do I choose the right training plan for the Endurancelife Suffolk 10K?
The Suffolk 10K on 10 October 2026 starts and finishes in Dunwich, a 6.1-mile trail race with roughly 85 m of climbing organised by Endurancelife on a compact loop of the same forest and coastal tracks, offering an approachable entry into the Coastal Trail Series with big scenery and a friendly vibe.
The Endurancelife Suffolk 10K is 10km long.
The Endurancelife Suffolk 10K takes place in Dunwich, Saxmundham, UK.
The Endurancelife Suffolk 10K elevation gain is 85 metres, which Runna classifies as a Moderate race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Endurancelife Suffolk 10K?
The Suffolk 10K on 10 October 2026 starts and finishes in Dunwich, a 6.1-mile trail race with roughly 85 m of climbing organised by Endurancelife on a compact loop of the same forest and coastal tracks, offering an approachable entry into the Coastal Trail Series with big scenery and a friendly vibe.
How long is the Endurancelife Suffolk 10K?
The Endurancelife Suffolk 10K is 10km long.
Where does the Endurancelife Suffolk 10K take place?
The Endurancelife Suffolk 10K takes place in Dunwich, Saxmundham, UK.
What is the elevation gain of the Endurancelife Suffolk 10K?
The Endurancelife Suffolk 10K elevation gain is 85 metres, which Runna classifies as a Moderate race.
How can I prepare for the Endurancelife Suffolk 10K?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Endurancelife Suffolk 10K?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Endurancelife Suffolk Half Marathon?
How long is the Endurancelife Suffolk Half Marathon?
Where does the Endurancelife Suffolk Half Marathon take place?
What is the elevation gain of the Endurancelife Suffolk Half Marathon?
How can I prepare for the Endurancelife Suffolk Half Marathon?
How do I choose the right training plan for the Endurancelife Suffolk Half Marathon?
The Suffolk Half Marathon is also held on Saturday 10 October 2026 in Dunwich, Suffolk, a ~13.5-mile course with about 160 m of ascent organised by Endurancelife, giving runners a fast, moderately technical blend of forest, moorland and coastal trail that’s ideal for chasing a trail PB.
The Endurancelife Suffolk Half Marathon is 21km long.
The Endurancelife Suffolk Half Marathon takes place in Dunwich, Saxmundham, UK.
The Endurancelife Suffolk Half Marathon elevation gain is 160 metres, which Runna classifies as a Moderate race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Endurancelife Suffolk Half Marathon?
The Suffolk Half Marathon is also held on Saturday 10 October 2026 in Dunwich, Suffolk, a ~13.5-mile course with about 160 m of ascent organised by Endurancelife, giving runners a fast, moderately technical blend of forest, moorland and coastal trail that’s ideal for chasing a trail PB.
How long is the Endurancelife Suffolk Half Marathon?
The Endurancelife Suffolk Half Marathon is 21km long.
Where does the Endurancelife Suffolk Half Marathon take place?
The Endurancelife Suffolk Half Marathon takes place in Dunwich, Saxmundham, UK.
What is the elevation gain of the Endurancelife Suffolk Half Marathon?
The Endurancelife Suffolk Half Marathon elevation gain is 160 metres, which Runna classifies as a Moderate race.
How can I prepare for the Endurancelife Suffolk Half Marathon?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Endurancelife Suffolk Half Marathon?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Endurancelife Suffolk Marathon?
How long is the Endurancelife Suffolk Marathon?
Where does the Endurancelife Suffolk Marathon take place?
What is the elevation gain of the Endurancelife Suffolk Marathon?
How can I prepare for the Endurancelife Suffolk Marathon?
How do I choose the right training plan for the Endurancelife Suffolk Marathon?
The Suffolk Marathon runs on 10 October 2026 from Dunwich, a ~26.7-mile trail marathon with around 288 m of climbing organised by Endurancelife on the same peaceful coastal terrain of woodland tracks, open heath and shoreline paths that make this one of the series’ quickest marathon routes.
The Endurancelife Suffolk Marathon is 43km long.
The Endurancelife Suffolk Marathon takes place in Dunwich, Saxmundham, UK.
The Endurancelife Suffolk Marathon elevation gain is 288 metres, which Runna classifies as a Moderate race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Endurancelife Suffolk Marathon?
The Suffolk Marathon runs on 10 October 2026 from Dunwich, a ~26.7-mile trail marathon with around 288 m of climbing organised by Endurancelife on the same peaceful coastal terrain of woodland tracks, open heath and shoreline paths that make this one of the series’ quickest marathon routes.
How long is the Endurancelife Suffolk Marathon?
The Endurancelife Suffolk Marathon is 43km long.
Where does the Endurancelife Suffolk Marathon take place?
The Endurancelife Suffolk Marathon takes place in Dunwich, Saxmundham, UK.
What is the elevation gain of the Endurancelife Suffolk Marathon?
The Endurancelife Suffolk Marathon elevation gain is 288 metres, which Runna classifies as a Moderate race.
How can I prepare for the Endurancelife Suffolk Marathon?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Endurancelife Suffolk Marathon?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Endurancelife Suffolk Ultra?
How long is the Endurancelife Suffolk Ultra?
Where does the Endurancelife Suffolk Ultra take place?
What is the elevation gain of the Endurancelife Suffolk Ultra?
How can I prepare for the Endurancelife Suffolk Ultra?
How do I choose the right training plan for the Endurancelife Suffolk Ultra?
The Suffolk Ultra takes place on Saturday 10 October 2026, organised by Endurancelife Ltd from Dunwich, Suffolk, UK, covering about 32.7 miles with roughly 344 m of ascent on an extremely flat-by-series-standards loop through forest, moorland, grass and beach within a sensitive landscape managed by Natural England, the RSPB and the National Trust.
The Endurancelife Suffolk Ultra is 52km long.
The Endurancelife Suffolk Ultra takes place in Dunwich, Saxmundham, UK.
The Endurancelife Suffolk Ultra elevation gain is 344 metres, which Runna classifies as a Moderate race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Endurancelife Suffolk Ultra?
The Suffolk Ultra takes place on Saturday 10 October 2026, organised by Endurancelife Ltd from Dunwich, Suffolk, UK, covering about 32.7 miles with roughly 344 m of ascent on an extremely flat-by-series-standards loop through forest, moorland, grass and beach within a sensitive landscape managed by Natural England, the RSPB and the National Trust.
How long is the Endurancelife Suffolk Ultra?
The Endurancelife Suffolk Ultra is 52km long.
Where does the Endurancelife Suffolk Ultra take place?
The Endurancelife Suffolk Ultra takes place in Dunwich, Saxmundham, UK.
What is the elevation gain of the Endurancelife Suffolk Ultra?
The Endurancelife Suffolk Ultra elevation gain is 344 metres, which Runna classifies as a Moderate race.
How can I prepare for the Endurancelife Suffolk Ultra?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Endurancelife Suffolk Ultra?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Endurancelife Suffolk or Endurancelife. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Endurancelife Suffolk website.
