Returning for its second iteration in 2025, Backyard Ås invites participants to test both physical endurance and mental grit by completing a 6.7 km loop each hour, with only those able to finish within 60 minutes staying in the race. Set against the scenic backdrop of Ås, Norway—just south of Oslo—the event is supported by the well-appointed Eika Sports Center, which provides indoor accommodations, showers, refreshments, and race logistics. Runners continue until only one remains, celebrating resilience and strategic pacing in this unique “last one standing” format. The event emphasizes community and challenge, mirroring the growing global fascination with backyard ultra races. Registration opens early, so those seeking to embrace the ultimate endurance test are encouraged to sign up soon.
Race
7 km
Race Date:
20 September, 2025
The Backyard Ås Ultra 2025 is a last-person-standing ultra challenge where participants must run a 6.706 km loop every hour on the hour, continuing until only one runner remains. Held on 20–21 September 2025 at Eika Sports Center in Ås, this community-driven event is organized by the Backyard Ås Committee, offering a forested, runnable trail course just 30 minutes south of Oslo, complete with indoor facilities and a relaxed ultra atmosphere.
Weather based on historical averages.
FAQs
What is the Backyard Ås Ultra?
How long is the Backyard Ås Ultra?
Where does the Backyard Ås Ultra take place?
What is the elevation gain of the Backyard Ås Ultra?
How can I prepare for the Backyard Ås Ultra?
How do I choose the right training plan for the Backyard Ås Ultra?
The Backyard Ås Ultra 2025 is a last-person-standing ultra challenge where participants must run a 6.706 km loop every hour on the hour, continuing until only one runner remains. Held on 20–21 September 2025 at Eika Sports Center in Ås, this community-driven event is organized by the Backyard Ås Committee, offering a forested, runnable trail course just 30 minutes south of Oslo, complete with indoor facilities and a relaxed ultra atmosphere.
The Backyard Ås Ultra is 6km long.
The Backyard Ås Ultra takes place in Ås, Akershus, Norway.
The Backyard Ås Ultra elevation gain is 84 meters, which Runna classifies as a Moderate 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 Backyard Ås Ultra?
The Backyard Ås Ultra 2025 is a last-person-standing ultra challenge where participants must run a 6.706 km loop every hour on the hour, continuing until only one runner remains. Held on 20–21 September 2025 at Eika Sports Center in Ås, this community-driven event is organized by the Backyard Ås Committee, offering a forested, runnable trail course just 30 minutes south of Oslo, complete with indoor facilities and a relaxed ultra atmosphere.
How long is the Backyard Ås Ultra?
The Backyard Ås Ultra is 6km long.
Where does the Backyard Ås Ultra take place?
The Backyard Ås Ultra takes place in Ås, Akershus, Norway.
What is the elevation gain of the Backyard Ås Ultra?
The Backyard Ås Ultra elevation gain is 84 meters, which Runna classifies as a Moderate race.
How can I prepare for the Backyard Ås Ultra?
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 Backyard Ås Ultra?
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 Backyard Ås 2025 or Backyard Ås. 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 Backyard Ås 2025 website.
