The Cousin Jack is a trail running event organized by Bys Vyken Events, taking place annually in Cornwall, UK. The race series offers two main distances: the Classic Jack, an 18-mile race from St Just to St Ives, and the more demanding Ultra Jack, a 35-mile out-and-back course that tests participants' endurance with significant elevation changes and tough terrain. The event is known for its scenic yet challenging routes, which include muddy fields, rocky headlands, and steep coastal paths. The Cousin Jack attracts both seasoned ultra-runners and adventurous participants looking to experience Cornwall's wild and beautiful landscapes while pushing their physical limits.
Races
35 Mile
29km
Race Date:
08 March, 2025
The Ultra Jack is a 35-mile out-and-back trail race beginning and ending in St Ives, featuring over 7,000 feet of elevation gain. This event, hosted by Bys Vyken Events, tests runners’ endurance and determination on some of Cornwall’s most rugged and spectacular coastal trails.
Race Date:
08 March, 2025
The Classic Jack is an 18-mile trail race that takes runners along the South West Coast Path from St Just to St Ives. Organized by Bys Vyken Events, this race is known for its stunning coastal views and the technical challenges of Cornwall’s rugged terrain.
Weather based on historical averages.
FAQs
What is the Cousin Jack?
How long is the Cousin Jack?
Where does the Cousin Jack take place?
What is the elevation gain of the Cousin Jack?
How can I prepare for the Cousin Jack?
How do I choose the right training plan for the Cousin Jack?
The Ultra Jack is a 35-mile out-and-back trail race beginning and ending in St Ives, featuring over 7,000 feet of elevation gain. This event, hosted by Bys Vyken Events, tests runners’ endurance and determination on some of Cornwall’s most rugged and spectacular coastal trails.
The Cousin Jack is 56km long.
The Cousin Jack takes place in St Just, England, UK.
The Cousin Jack elevation gain is 2134 meters, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalized 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 personalized 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 Cousin Jack?
The Ultra Jack is a 35-mile out-and-back trail race beginning and ending in St Ives, featuring over 7,000 feet of elevation gain. This event, hosted by Bys Vyken Events, tests runners’ endurance and determination on some of Cornwall’s most rugged and spectacular coastal trails.
How long is the Cousin Jack?
The Cousin Jack is 56km long.
Where does the Cousin Jack take place?
The Cousin Jack takes place in St Just, England, UK.
What is the elevation gain of the Cousin Jack?
The Cousin Jack elevation gain is 2134 meters, which Runna classifies as a Hilly race.
How can I prepare for the Cousin Jack?
The best way to train for the next race is to use a personalized 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 Cousin Jack?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized 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 Cousin Jack?
How long is the Cousin Jack?
Where does the Cousin Jack take place?
What is the elevation gain of the Cousin Jack?
How can I prepare for the Cousin Jack?
How do I choose the right training plan for the Cousin Jack?
The Classic Jack is an 18-mile trail race that takes runners along the South West Coast Path from St Just to St Ives. Organized by Bys Vyken Events, this race is known for its stunning coastal views and the technical challenges of Cornwall’s rugged terrain.
The Cousin Jack is 29km long.
The Cousin Jack takes place in St Just, England, UK.
Runna classifies the Cousin Jack elevation profile as Hilly.
The best way to train for the next race is to use a personalized 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 personalized 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 Cousin Jack?
The Classic Jack is an 18-mile trail race that takes runners along the South West Coast Path from St Just to St Ives. Organized by Bys Vyken Events, this race is known for its stunning coastal views and the technical challenges of Cornwall’s rugged terrain.
How long is the Cousin Jack?
The Cousin Jack is 29km long.
Where does the Cousin Jack take place?
The Cousin Jack takes place in St Just, England, UK.
What is the elevation gain of the Cousin Jack?
Runna classifies the Cousin Jack elevation profile as Hilly.
How can I prepare for the Cousin Jack?
The best way to train for the next race is to use a personalized 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 Cousin Jack?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized 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!
More
Sport:
Running
Tags:
Nature
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Cousin Jack or Bys Vyken Events. 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 Cousin Jack website.
