Sulphur Springs Trail Race

Saturday May 24th

50K, 50 Miles, 100K, 100 Miles

+ 100 Mile Team Relays!

 

Sunday May 25th

10K and 20K Races


Course Details: The Sulphur Springs Trail Race is a 20K loop course, and offers trail runners of all skills a little something to enjoy - with a mixture of groomed trail to moderately challenging single track, with rolling easy hills and steep climbs and descents.  All nestled in the beautiful setting of the Niagara Escarpment where natural springs and streams babble in the background, and if you are lucky enough, deer bounding alongside: truly a runner’s paradise.


Lost in the Woods since 1992, this Trail system has been the site of this Burlington Runners Club Race for more than 30 years; making it the oldest running Ultra Marathon in Canada. Come and see what the hype is all about!


2025 is once again an Athletics Ontario Sanctioned Event

Western States Endurance Run - Qualifying Race
Athletics Ontario sanctioned race
Sulphur Springs Trail Race sample image

Sulphur Springs is one of the best days of running you will ever experience. The race weaves its way on a 20K loop through the beautiful trails of the Dundas Valley Conservation Area in the City of Hamilton, Ontario (formerly the Town of Ancaster). 

The race offers events for everyone from the casual weekend warrior to the hard-core racer to the corporate team looking for a group challenge.  10K, 20K, 50K, 50M, 100K, 100M + Relays!

We will work to ensure that your race day experience is as wonderful as possible, however, we make NO claims as to how clean you will be by the time you reach the finish line.

Sulphur Springs Trail Race guided training runs

Guided Training Runs

At each of the Arc'teryx Guided Training Runs, you will have the opportunity to try-out their latest trail running shoes, including the Arc'teryx SYLVAN. Watch for more details on these training runs, including a link to register before the run - this serves as our participation waiver, as well as your entrance into the raffle for FREE Arc'teryx Gear to be held at each run!

Get Registered Before the run. 

Get there early. (7:15 is advised)

Get your demo Arc'teryx Trail shoes on. 

 Get your 10K or 20K Loop in!

Trail conditions and weather conditions will dictate if these planned training runs can go ahead. Please follow the Sulphur Springs Trail Race on Facebook and Instagram to see if we make any last minute changes to these proposed dates:

Saturday March 22nd - 8 am Run Start (10K & 20K Loops)

Saturday April 5th - 8 am Run Start (10K & 20K Loops)

Saturday April 19th - 8 am Run Start (10K & 20K Loops)

Sunday May 4th - 8 am Run Start (10K & 20K Loops) 

2024 Race Recap

2023 Race Recap

(With special thanks to Nick Lobos) 

RECENT UPDATES:

BIG NEWS: SSTR is now a WSER qualifying race... only one in Ontario!

Sulphur Springs Trail Race Directors - Russell Thacker, Mauro Campanelli and Steve Connor

Russell Thacker, Mauro Campanelli and Steve Connor

Returning as your Race Directors for the 2025 Sulphur Springs Trail Race are the trio from Straw Dog Racing:

 Russell Thacker   Mauro Campanelli   Steve Connor

We are proud to partner with Burlington Runners Club to provide you with an entertaining, challenging, and safe race weekend 

Please help us to thank our sponsors by providing support for them throughout the year.

Email us below if you have any questions about race day, and follow us on our socials to track race updates, training run schedules, and all other race related news.

See you on the trails!

 sulphursprings@burlingtonrunners.com