The 2025 Lake of Bays Brewing Co. IRONMAN 70.3 Muskoka

July 6, 2025

Welcome to the Lake of Bays Brewing Co. Ironman 70.3 Muskoka, the first and only Ironman 70.3 event in Ontario.  

Athletes, you are racing in our backyard and like any good host, we believe you should be supported by a company brewing beer in that same backyard. Check out our line-up of great beer at: https://lakeofbaysbrewing.ca/

See you at the finish line in July. We are ready to greet you with a cold one to celebrate your accomplishment!

We will see you soon in Muskoka!

Exciting news in Cottage Country today as Sawdust City Brewing Co. merges with Lake of Bays Brewing Co. creating a new top 10 entity in the craft beer market!

ATHLETE GUIDE NOW AVAILABLE ON THE WEBSITE

Click Here

Check out your Race Number

Individual Athletes

Relay Teams

Click Here for your guide to Registration!

Unfortunately we are now past the deadline for partial refunds as per the withdrawal policy below. 

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Withdrawal requests must be received in writing via e-mail to muskoka70.3@ironman.com. A 50% registration refund will be issued up until March 6th, 2025. A 25% refund will be issued from March 7 to May 22nd, 2025.

Deferrals and Transfers are NOT permitted. Lake of Bays Brewing Co. IRONMAN 70.3 MUSKOKA IS NOT PART OF THE IRONMAN FLEX90 PROGRAM AND CANNOT OFFER TRANSFERS IN OR OUT OF IRONMAN 70.3 Muskoka.

If you have additional questions, please CONTACT US

VOLUNTEERS NEEDED!

A successful race is successful because of volunteers.....and a race like the Lake of Bays Brewing Co. IRONMAN 70.3 Muskoka requires 100's of them! There are volunteer positions for days leading up to the race and on race day itself. Please consider sharing this link with your family and friends that are coming to support you.

Volunteer Page Link

As a proud supporter of the Lake of Bays Brewing Co. IRONMAN 70.3 Muskoka, SUMARPO is offering all athletes an exclusive 20% discount on our entire collection of high-performance, eco-friendly wetsuits and tri gear. Use the code Muskoka20 at checkout to enjoy 20% off.

Worried about high import duties? Don’t be. We've got solutions to make sure your order arrives smoothly. VISIT US!

Perfect Sports is back as the Official Protein for Lake of Bays Brewing Co. IRONMAN 70.3 Muskoka in 2025. Athletes will enjoy a Diesel protein bar in their race kit or in the post-race food area.

See all their products here!

Jakroo is excited to announce that our new Elite Running Custom Apparel line is now available, with our industry-leading 2-week turnaround on your custom order!

 View at: https://jakroo.com/run/ca?lang=en&currency=cad"

THANKS TO OUR SPONSORS/PARTNERS

If you would like to be a sponsor and/or attend a race as an expo presenter, please contact Lisa Bentley (lisa.bentley@rogers.com)