Sub Ultra Trail Run 2025 returns to Calgary’s iconic Nose Hill Park on September 21, 2025, inviting trail runners to experience its unique urban wilderness. Designed for accessibility and challenge, the event offers distances of 7 km, 17 km, and 34 km, plus a fun and fast 2 km kids’ run. As part of Calgary’s only dedicated sub-ultra trail series, the event emphasizes community, inclusivity, and joy in movement—ideal for newcomers to trail running and veterans alike. Participants enjoy a well-supported race environment, with chip timing, fully stocked aid stations, finisher medals, and a celebratory post-race breakfast. With its mix of grassland trails and panoramic city views, Nose Hill Park offers a welcoming and scenic course for every level of runner.
Races
34 km
17 km
7 km
Race Date:
21 September, 2025
This 34 km sub‑ultra distance offers an extended loop course in Nose Hill Park, suited to seasoned trail runners seeking speed and challenge on urban park terrain. Hosted by RNR Premier Events as part of the YYC Sub Ultra Trail Run, it takes place on Sunday, 21 September 2025, in Calgary, Alberta.
Weather based on historical averages.
FAQs
What is the Sub Ultra Trail Run 34km?
How long is the Sub Ultra Trail Run 34km?
Where does the Sub Ultra Trail Run 34km take place?
What is the elevation gain of the Sub Ultra Trail Run 34km?
How can I prepare for the Sub Ultra Trail Run 34km?
How do I choose the right training plan for the Sub Ultra Trail Run 34km?
This 34 km sub‑ultra distance offers an extended loop course in Nose Hill Park, suited to seasoned trail runners seeking speed and challenge on urban park terrain. Hosted by RNR Premier Events as part of the YYC Sub Ultra Trail Run, it takes place on Sunday, 21 September 2025, in Calgary, Alberta.
The Sub Ultra Trail Run 34km is 34km long.
The Sub Ultra Trail Run 34km takes place in Calgary, Alberta, Canada.
Runna classifies the Sub Ultra Trail Run 34km elevation profile as Moderate.
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 Sub Ultra Trail Run 34km?
This 34 km sub‑ultra distance offers an extended loop course in Nose Hill Park, suited to seasoned trail runners seeking speed and challenge on urban park terrain. Hosted by RNR Premier Events as part of the YYC Sub Ultra Trail Run, it takes place on Sunday, 21 September 2025, in Calgary, Alberta.
How long is the Sub Ultra Trail Run 34km?
The Sub Ultra Trail Run 34km is 34km long.
Where does the Sub Ultra Trail Run 34km take place?
The Sub Ultra Trail Run 34km takes place in Calgary, Alberta, Canada.
What is the elevation gain of the Sub Ultra Trail Run 34km?
Runna classifies the Sub Ultra Trail Run 34km elevation profile as Moderate.
How can I prepare for the Sub Ultra Trail Run 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 Sub Ultra Trail Run 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!
More
Sport:
Running
Tags:
Women Only
Nature
Kid friendly
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Sub Ultra Trail Run 2025 or Wild Rose Women's 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 Sub Ultra Trail Run 2025 website.
