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Sulphur Springs Trail Races
Non Profit Event for Runners by Runners

GO CUPLESS - no cups at aid stations



Participants Guide 
(updated 2018-05-23)

Sulphur Course Map |  Sulphur Course Directions

Fun Runs / Unofficial Practice Runs
We are suggesting unsupported fun runs on the course (20k loop) on Sunday 8am
You might want to bring any refreshments you require and a copy of the course map.
February 4   |   March 4   |    April 1   |   May 6

Same Pricing as 2017

Check it out...


Registration fees

100 Mile Trail Race Closed

    1. Registration closed

50 Mile Trail Race Closed

    1. Registration closed

50 K Trail Race Closed

    1. Registration closed

100 Mile Relay Closed

team of 8

    1. Registration closed

25 K Trail Race Closed

    1. Registration closed

10 K Trail Race Closed

    1. Registration closed

General FAQs

All Races


  • 50% before Feb 1
  • 25% before Mar 1
  • 0% from Mar 1 onwards (the money will have already been spent)


  • none

Transfers and Distance Changes

  • $15 charge before April 15
  • $20 charge before May 7 ** extended **
  • No transfers/changes from May 7 onwards
  • Change to shorter distance – no refund of difference in registration fees
  • Change to longer distance – pay difference in registration fees

Other Notes

  1. NO PETS (service dogs excepted) are allowed in any event or in the start/finish area.
  2. NO STROLLERS are allowed in any event or in the start/finish area.
  3. Every reasonable attempt to accommodate dietary restrictions will be made but can not be guaranteed. It is each runners responsibility to inform the race directors of any restrictions in advance of the race by email -
  4. All runners are expected to have reviewed the course map and directions and latest version of the participant guide and make themselves familiar with these documents
  5. Race and medical officials have the right to withdraw any runner at anytime if deemed necessary (no refund will be issued)

100 Mile Team Registration

When you select the 100 mile relay option please note that you need to register your full team at once.

Process for registering a relay team:
  1. enter your name and details
    1. Have this ready for all team members before you register - first and last name, email address, phone number, full address, sex, food restrictions, emergency contact
  2. choose a team name
  3. choose the option to register someone else
  4. choose "existing team"  and select your team name
  5. repeat for all members of the relay team
  6. go to payment page to complete your registration
  7. NOTE - all relay members MUST sign a waiver before race bibs will be handed over

Race Videos

Here are some links to videos on YouTube that may help you visualize the course and how some runners experience race day



FAB: Fit Active Beautiful!

Help support FAB programs in low income areas of Hamilton

2 running programs for girls from grade 6-12 helps give the participants the skills they need to set and achieve goals.

Help empower the women of tomorrow and donate to FAB now.

You can find out more about the FAB programs at


More that $100,000 from the proceeds of our Sulphur Springs races have been donated to help support the Dundas Valley Conservation Area.

Take a look around you as you run to see the legacy you are leaving behind thanks to your participation in this race.

Race directors Andrea Lynn Sloan and Tim Nelson present the 2017 Sulphur donation cheque to the Hamilton Conservation Authority.  Over $100,000 has been donated to date.



Interested in sponsoring Canada's largest and oldest trail ultra?  

Contact Tim and Andrea at

Event Schedule

  • May 25 3:00 PM EDT - RACE WEEKEND STARTS - site and course setup

  • May 27 2:00 PM EDT - RACE WEEKEND ENDS - site and course cleaned up and empty

Contact Information

Event Location

Morgan Firestone Arena, Ancaster, Hamilton, ON, Canada

Click here to view map