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Register for Subaru Triathlon Series Races

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 Merrell 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.


Guelph 2 Update

Site change for Guelph 2 - please read more by clicking here.

Aug29,2014 » Click to Read

Registration For Guelph 2

Just a friendly reminder that Guelph 2 On Line Registration will be closing Thursday at 10 am so we can get ready for Saturday's Races. Try a Tri is close to capacity so may ev..

Aug25,2014 » Click to Read

Guelph Lake 2

Gearing up for Fantastic and Very Popular Guelph Lake 2! The water levels are looking great this year thanks to all the rain this summer and snow last winter! Be sure to join us next weekend! It..

Aug20,2014 » Click to Read

NEW! Ontario Gets a FULL IRONMAN in 2015!

There is no triathlon town more worthy of an IRONMAN than Huntsville, Ontario! We couldn't be more thrilled to make the official announcement. It has been a long time coming! You will notice that t..

July23,2014 » 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