On the weekend of December 20–21, 2025, trail runners will head to the Meerdaal Forest, a vast stretch of woodland near Leuven and Bierbeek, for the annual Meerdaalwoud Trail. The event spans several distances — 50 km, 34 km, 27 km, 18 km, 11 km, and mid-range options — giving everyone from seasoned ultrarunners to casual adventurers a course to conquer. Participants navigate winding single-tracks, forest climbs, and rolling dirt paths blanketed in winter mud, creating a true off-road experience. The event’s relaxed, community-driven spirit pairs with professional organization to deliver one of Belgium’s most beloved year-end trail gatherings. Whether you’re testing endurance or simply chasing the joy of running through ancient woods, the Meerdaalwoud Trail captures the essence of winter trail running.
Races
Race Date:
20 December, 2025
Taking place on Saturday, 20 December 2025, the 50 km ultra leads runners deep into the Meerdaalwoud Forest in Bierbeek, Belgium, with roughly 750 m of elevation gain. Organised by the Runners’ Lab Trailrun Series, it’s a demanding winter adventure designed for seasoned trail runners who crave endurance and solitude amid ancient woods.
Race Date:
20 December, 2025
The 34 km course takes place on Saturday, 20 December 2025, inviting runners to traverse forest trails and hidden tracks with an elevation gain of about 430 m. With its mix of challenge and beauty, it offers a strong mid-distance option under the same excellent organisation.
Race Date:
20 December, 2025
On Saturday, 20 December 2025, the 27 km route challenges runners with about 320 m of ascent over varied woodland terrain. Compact yet tough, it captures the spirit of trail running with crisp winter air, twisting paths, and the quiet rhythm of nature.
Race Date:
21 December, 2025
The 19 km course on Sunday, 21 December 2025 showcases the forest’s best single-tracks and wide woodland avenues, featuring 230 m of elevation gain. It’s a vibrant, atmospheric run — ideal for those wanting a solid effort without venturing into ultra distance.
Race Date:
20 December, 2025
Set for Saturday, 20 December 2025, the 18 km race takes participants on a rolling loop through Meerdaalwoud, combining runnable forest stretches with about 250 m of elevation gain. It offers the sweet spot between challenge and accessibility for those new to trail racing.
Race Date:
20 December, 2025
On Saturday, 20 December 2025, the 13 km race provides an inviting introduction to the trails of Bierbeek, with around 180 m of climb. Short, scenic, and full of character, it’s a festive December outing for runners of all abilities.
Race Date:
21 December, 2025
The 11 km loop, scheduled for Sunday, 21 December 2025, winds through the heart of Meerdaalwoud, offering 130 m of elevation gain amid crisp air and wintry forest stillness. Organised by Runners’ Lab Trailrun Series, it’s the perfect feel-good finale for the event weekend.
Weather based on historical averages.
FAQs
What is the Meerdaalwoud Trail 50km?
How long is the Meerdaalwoud Trail 50km?
Where does the Meerdaalwoud Trail 50km take place?
What is the elevation gain of the Meerdaalwoud Trail 50km?
How can I prepare for the Meerdaalwoud Trail 50km?
How do I choose the right training plan for the Meerdaalwoud Trail 50km?
Taking place on Saturday, 20 December 2025, the 50 km ultra leads runners deep into the Meerdaalwoud Forest in Bierbeek, Belgium, with roughly 750 m of elevation gain. Organised by the Runners’ Lab Trailrun Series, it’s a demanding winter adventure designed for seasoned trail runners who crave endurance and solitude amid ancient woods.
The Meerdaalwoud Trail 50km is 50km long.
The Meerdaalwoud Trail 50km takes place in Bierbeek, Belgium.
The Meerdaalwoud Trail 50km elevation gain is 750 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 Meerdaalwoud Trail 50km?
Taking place on Saturday, 20 December 2025, the 50 km ultra leads runners deep into the Meerdaalwoud Forest in Bierbeek, Belgium, with roughly 750 m of elevation gain. Organised by the Runners’ Lab Trailrun Series, it’s a demanding winter adventure designed for seasoned trail runners who crave endurance and solitude amid ancient woods.
How long is the Meerdaalwoud Trail 50km?
The Meerdaalwoud Trail 50km is 50km long.
Where does the Meerdaalwoud Trail 50km take place?
The Meerdaalwoud Trail 50km takes place in Bierbeek, Belgium.
What is the elevation gain of the Meerdaalwoud Trail 50km?
The Meerdaalwoud Trail 50km elevation gain is 750 metres, which Runna classifies as a Moderate race.
How can I prepare for the Meerdaalwoud Trail 50km?
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 Meerdaalwoud Trail 50km?
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 Meerdaalwoud Trail 34km?
How long is the Meerdaalwoud Trail 34km?
Where does the Meerdaalwoud Trail 34km take place?
What is the elevation gain of the Meerdaalwoud Trail 34km?
How can I prepare for the Meerdaalwoud Trail 34km?
How do I choose the right training plan for the Meerdaalwoud Trail 34km?
The 34 km course takes place on Saturday, 20 December 2025, inviting runners to traverse forest trails and hidden tracks with an elevation gain of about 430 m. With its mix of challenge and beauty, it offers a strong mid-distance option under the same excellent organisation.
The Meerdaalwoud Trail 34km is 34km long.
The Meerdaalwoud Trail 34km takes place in Bierbeek, Belgium.
The Meerdaalwoud Trail 34km elevation gain is 430 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 Meerdaalwoud Trail 34km?
The 34 km course takes place on Saturday, 20 December 2025, inviting runners to traverse forest trails and hidden tracks with an elevation gain of about 430 m. With its mix of challenge and beauty, it offers a strong mid-distance option under the same excellent organisation.
How long is the Meerdaalwoud Trail 34km?
The Meerdaalwoud Trail 34km is 34km long.
Where does the Meerdaalwoud Trail 34km take place?
The Meerdaalwoud Trail 34km takes place in Bierbeek, Belgium.
What is the elevation gain of the Meerdaalwoud Trail 34km?
The Meerdaalwoud Trail 34km elevation gain is 430 metres, which Runna classifies as a Moderate race.
How can I prepare for the Meerdaalwoud Trail 34km?
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 Meerdaalwoud Trail 34km?
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 Meerdaalwoud Trail 27km ?
How long is the Meerdaalwoud Trail 27km ?
Where does the Meerdaalwoud Trail 27km take place?
What is the elevation gain of the Meerdaalwoud Trail 27km ?
How can I prepare for the Meerdaalwoud Trail 27km ?
How do I choose the right training plan for the Meerdaalwoud Trail 27km ?
On Saturday, 20 December 2025, the 27 km route challenges runners with about 320 m of ascent over varied woodland terrain. Compact yet tough, it captures the spirit of trail running with crisp winter air, twisting paths, and the quiet rhythm of nature.
The Meerdaalwoud Trail 27km is 27km long.
The Meerdaalwoud Trail 27km takes place in Bierbeek, Belgium.
The Meerdaalwoud Trail 27km elevation gain is 320 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 Meerdaalwoud Trail 27km ?
On Saturday, 20 December 2025, the 27 km route challenges runners with about 320 m of ascent over varied woodland terrain. Compact yet tough, it captures the spirit of trail running with crisp winter air, twisting paths, and the quiet rhythm of nature.
How long is the Meerdaalwoud Trail 27km ?
The Meerdaalwoud Trail 27km is 27km long.
Where does the Meerdaalwoud Trail 27km take place?
The Meerdaalwoud Trail 27km takes place in Bierbeek, Belgium.
What is the elevation gain of the Meerdaalwoud Trail 27km ?
The Meerdaalwoud Trail 27km elevation gain is 320 metres, which Runna classifies as a Moderate race.
How can I prepare for the Meerdaalwoud Trail 27km ?
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 Meerdaalwoud Trail 27km ?
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 Meerdaalwoud Trail 19km?
How long is the Meerdaalwoud Trail 19km?
Where does the Meerdaalwoud Trail 19km take place?
What is the elevation gain of the Meerdaalwoud Trail 19km?
How can I prepare for the Meerdaalwoud Trail 19km?
How do I choose the right training plan for the Meerdaalwoud Trail 19km?
The 19 km course on Sunday, 21 December 2025 showcases the forest’s best single-tracks and wide woodland avenues, featuring 230 m of elevation gain. It’s a vibrant, atmospheric run — ideal for those wanting a solid effort without venturing into ultra distance.
The Meerdaalwoud Trail 19km is 19km long.
The Meerdaalwoud Trail 19km takes place in Bierbeek, Belgium.
The Meerdaalwoud Trail 19km elevation gain is 230 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 Meerdaalwoud Trail 19km?
The 19 km course on Sunday, 21 December 2025 showcases the forest’s best single-tracks and wide woodland avenues, featuring 230 m of elevation gain. It’s a vibrant, atmospheric run — ideal for those wanting a solid effort without venturing into ultra distance.
How long is the Meerdaalwoud Trail 19km?
The Meerdaalwoud Trail 19km is 19km long.
Where does the Meerdaalwoud Trail 19km take place?
The Meerdaalwoud Trail 19km takes place in Bierbeek, Belgium.
What is the elevation gain of the Meerdaalwoud Trail 19km?
The Meerdaalwoud Trail 19km elevation gain is 230 metres, which Runna classifies as a Moderate race.
How can I prepare for the Meerdaalwoud Trail 19km?
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 Meerdaalwoud Trail 19km?
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 Meerdaalwoud Trail 18km ?
How long is the Meerdaalwoud Trail 18km ?
Where does the Meerdaalwoud Trail 18km take place?
What is the elevation gain of the Meerdaalwoud Trail 18km ?
How can I prepare for the Meerdaalwoud Trail 18km ?
How do I choose the right training plan for the Meerdaalwoud Trail 18km ?
Set for Saturday, 20 December 2025, the 18 km race takes participants on a rolling loop through Meerdaalwoud, combining runnable forest stretches with about 250 m of elevation gain. It offers the sweet spot between challenge and accessibility for those new to trail racing.
The Meerdaalwoud Trail 18km is 18km long.
The Meerdaalwoud Trail 18km takes place in Bierbeek, Belgium.
The Meerdaalwoud Trail 18km elevation gain is 250 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 Meerdaalwoud Trail 18km ?
Set for Saturday, 20 December 2025, the 18 km race takes participants on a rolling loop through Meerdaalwoud, combining runnable forest stretches with about 250 m of elevation gain. It offers the sweet spot between challenge and accessibility for those new to trail racing.
How long is the Meerdaalwoud Trail 18km ?
The Meerdaalwoud Trail 18km is 18km long.
Where does the Meerdaalwoud Trail 18km take place?
The Meerdaalwoud Trail 18km takes place in Bierbeek, Belgium.
What is the elevation gain of the Meerdaalwoud Trail 18km ?
The Meerdaalwoud Trail 18km elevation gain is 250 metres, which Runna classifies as a Moderate race.
How can I prepare for the Meerdaalwoud Trail 18km ?
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 Meerdaalwoud Trail 18km ?
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 Meerdaalwoud Trail 13km?
How long is the Meerdaalwoud Trail 13km?
Where does the Meerdaalwoud Trail 13km take place?
What is the elevation gain of the Meerdaalwoud Trail 13km?
How can I prepare for the Meerdaalwoud Trail 13km?
How do I choose the right training plan for the Meerdaalwoud Trail 13km?
On Saturday, 20 December 2025, the 13 km race provides an inviting introduction to the trails of Bierbeek, with around 180 m of climb. Short, scenic, and full of character, it’s a festive December outing for runners of all abilities.
The Meerdaalwoud Trail 13km is 13km long.
The Meerdaalwoud Trail 13km takes place in Bierbeek, Belgium.
The Meerdaalwoud Trail 13km elevation gain is 180 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 Meerdaalwoud Trail 13km?
On Saturday, 20 December 2025, the 13 km race provides an inviting introduction to the trails of Bierbeek, with around 180 m of climb. Short, scenic, and full of character, it’s a festive December outing for runners of all abilities.
How long is the Meerdaalwoud Trail 13km?
The Meerdaalwoud Trail 13km is 13km long.
Where does the Meerdaalwoud Trail 13km take place?
The Meerdaalwoud Trail 13km takes place in Bierbeek, Belgium.
What is the elevation gain of the Meerdaalwoud Trail 13km?
The Meerdaalwoud Trail 13km elevation gain is 180 metres, which Runna classifies as a Moderate race.
How can I prepare for the Meerdaalwoud Trail 13km?
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 Meerdaalwoud Trail 13km?
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 Meerdaalwoud Trail 11km?
How long is the Meerdaalwoud Trail 11km?
Where does the Meerdaalwoud Trail 11km take place?
What is the elevation gain of the Meerdaalwoud Trail 11km?
How can I prepare for the Meerdaalwoud Trail 11km?
How do I choose the right training plan for the Meerdaalwoud Trail 11km?
The 11 km loop, scheduled for Sunday, 21 December 2025, winds through the heart of Meerdaalwoud, offering 130 m of elevation gain amid crisp air and wintry forest stillness. Organised by Runners’ Lab Trailrun Series, it’s the perfect feel-good finale for the event weekend.
The Meerdaalwoud Trail 11km is 11km long.
The Meerdaalwoud Trail 11km takes place in Bierbeek, Belgium.
The Meerdaalwoud Trail 11km elevation gain is 130 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 Meerdaalwoud Trail 11km?
The 11 km loop, scheduled for Sunday, 21 December 2025, winds through the heart of Meerdaalwoud, offering 130 m of elevation gain amid crisp air and wintry forest stillness. Organised by Runners’ Lab Trailrun Series, it’s the perfect feel-good finale for the event weekend.
How long is the Meerdaalwoud Trail 11km?
The Meerdaalwoud Trail 11km is 11km long.
Where does the Meerdaalwoud Trail 11km take place?
The Meerdaalwoud Trail 11km takes place in Bierbeek, Belgium.
What is the elevation gain of the Meerdaalwoud Trail 11km?
The Meerdaalwoud Trail 11km elevation gain is 130 metres, which Runna classifies as a Moderate race.
How can I prepare for the Meerdaalwoud Trail 11km?
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 Meerdaalwoud Trail 11km?
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!
More
Sport:
Running
Tags:
Major City
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Meerdaalwoud Trail or Trailrun.be. 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 Meerdaalwoud Trail website.
