The Sulphur Springs Trail Race is one of Canada's most popular and longest-running ultramarathon events, held in the scenic Dundas Valley Conservation Area in Ontario. Known for its rolling hills, forested trails, and well-maintained paths, the race challenges runners with a mix of elevation changes and technical terrain. The event offers a variety of distances, including 10K, 25K, 50K, 50-mile, 100K, and 100-mile races, making it accessible to both novice and experienced trail runners. As part of the Ontario Ultra Series, it attracts a competitive field while maintaining a friendly and welcoming atmosphere. With its natural beauty and well-organized support stations, Sulphur Springs is a favorite among trail and ultra-running enthusiasts.
Race
The 2026 Sulphur Springs Trail Race 100K is a challenging ultra-distance event held in the scenic Dundas Valley Conservation Area in Ancaster, Ontario. Covering a 100 km course arranged in a 20 km loop with over 500 meters of elevation gain per loop, runners experience rolling hills, technical trails, and beautiful forested landscapes. This event not only tests endurance and trail skills but also serves as a qualifier for the Western States Endurance Run, offering entry opportunities for finishers within designated time limits. With its combination of rugged terrain, significant elevation, and stunning scenery, the Sulphur Springs Trail Race 100K provides a rewarding and memorable trail running experience for ultra runners.
Weather based on historical averages.
FAQs
What is the Sulphur Springs Trail Race 100km?
How long is the Sulphur Springs Trail Race 100km?
Where does the Sulphur Springs Trail Race 100km take place?
What is the elevation gain of the Sulphur Springs Trail Race 100km?
How can I prepare for the Sulphur Springs Trail Race 100km?
How do I choose the right training plan for the Sulphur Springs Trail Race 100km?
The 2026 Sulphur Springs Trail Race 100K is a challenging ultra-distance event held in the scenic Dundas Valley Conservation Area in Ancaster, Ontario. Covering a 100 km course arranged in a 20 km loop with over 500 meters of elevation gain per loop, runners experience rolling hills, technical trails, and beautiful forested landscapes. This event not only tests endurance and trail skills but also serves as a qualifier for the Western States Endurance Run, offering entry opportunities for finishers within designated time limits. With its combination of rugged terrain, significant elevation, and stunning scenery, the Sulphur Springs Trail Race 100K provides a rewarding and memorable trail running experience for ultra runners.
The Sulphur Springs Trail Race 100km is 100km long.
The Sulphur Springs Trail Race 100km takes place in Hamilton, Ontario, Canada.
Runna classifies the Sulphur Springs Trail Race 100km elevation profile as Hilly.
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 Sulphur Springs Trail Race 100km?
The 2026 Sulphur Springs Trail Race 100K is a challenging ultra-distance event held in the scenic Dundas Valley Conservation Area in Ancaster, Ontario. Covering a 100 km course arranged in a 20 km loop with over 500 meters of elevation gain per loop, runners experience rolling hills, technical trails, and beautiful forested landscapes. This event not only tests endurance and trail skills but also serves as a qualifier for the Western States Endurance Run, offering entry opportunities for finishers within designated time limits. With its combination of rugged terrain, significant elevation, and stunning scenery, the Sulphur Springs Trail Race 100K provides a rewarding and memorable trail running experience for ultra runners.
How long is the Sulphur Springs Trail Race 100km?
The Sulphur Springs Trail Race 100km is 100km long.
Where does the Sulphur Springs Trail Race 100km take place?
The Sulphur Springs Trail Race 100km takes place in Hamilton, Ontario, Canada.
What is the elevation gain of the Sulphur Springs Trail Race 100km?
Runna classifies the Sulphur Springs Trail Race 100km elevation profile as Hilly.
How can I prepare for the Sulphur Springs Trail Race 100km?
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 Sulphur Springs Trail Race 100km?
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!
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This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Sulphur Springs Trail Race or Burlington Runners Club. 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 Sulphur Springs Trail Race website.