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GET UGLY THIS SUMMER.

DISCOVER GRAVEL AT THE COUNTRY’S MOST NEWBIE-FRIENDLY GRAVEL MULTISPORT EVENT!

GRASS LAKE, MICHIGAN – JULY 26, 2025

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What is Ugly Dog Gravel Triathlon?

Ugly Dog Gravel Tri started in 2018 as a swim – gravel bike – trail run event. Your race will start with a beautiful swim in Portage Lake. Then you’ll get ready for the bike leg, but leave the expensive tri bike and skinny tires home. Grab a road bike, fat tire, mountain bike, whatever is going to take you through the scenic gravel roads of Waterloo’s glacial park. Once you are back to transition, finish off your race with a wooded trail run.

Swim in Portage Lake

Bike on Gravel Roads

Run through Trails

The Original Gravel Triathlon 

The Original Gravel Triathlon 

The Original Gravel Triathlon 

The Original Gravel Triathlon 

The Original Gravel Triathlon