The Subaru Triathlon Series is Ontario’s leading triathlon and duathlon series. We are proud of our sponsors:

Subaru Canada is a proud sponsor of the Subaru Triathlon Series PowerBar is a proud sponsor of the Subaru Triathlon Series


You can now verify your race registration for all our Subaru Triathlon Series events. Simply click on the button to the right, fill out the fields and you'll automatically be able to see what races you are registered for.



To re-send yourself a REGISTRATION CONFIRMATION E-MAIL, Change your T-SHIRT SIZE OR Update your MEDICAL HISTORY/EMERGENCY CONTACT INFO please use this link.


Training Camps

Warm Weather Training Camps - Clermont Florida March 14-21, March 22-28 April 3-12. Experienced coaches for all levels, challenging hills, open water, 50 meter outdoor pool, quiet country roads, ac..

Novr21,2014 » Click to Read

Guelph Lake is now Host to the Infamous 5150!

Good News! The 5150 (Olympic Distance races) are back and it will be at Guelph Lake on June 20th 2015! We are gearing up for some new and fun stuff at this race. Be sure to mark the date on your ca..

Novr04,2014 » Click to Read

2015 Schedule Announced!

Read our latest newsletter for the up to the minute announcements! This is just the beginning. It is ..

Oct28,2014 » Click to Read

Subaru Ironman 70.3 Muskoka Registration Opens October 30th

Make sure you get yourself on that start line. The race date has been moved from September and is now Sunday, July 5th. This also fits in perfectly if you are already rregistered for the inaugural ..

Oct27,2014 » Click to Read SEE ALL NEWS


We've partnered with the Canadian Breast Cancer Foundation to bring Canada's first ever Iron Girl event! Join us at Nelles Beach Park in Grimsby, Ontario – just an hour away from Toronto and Buffalo – for a 500m shallow and safe swim – 20km flat and friendly bike – and a 5km spectator lined run course. It will be a picture perfect course starting in Lake Ontario, touring Niagara's farmland and finishing on the Waterfront Trail!

Click here to learn more

Ironman Muskoka 70.3