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Gravel bike riding

Eager Beaver Weekend:
Cannondale ON Gravel 3

Sunday, August 27, 2023 - Mansfield Ski Club

The Eager Beaver is back with more punch and more fun. Gravel Race, XCMarathon Race, and Stage Race. Plus beer, camping, and live music... All in one unforgettable weekend!


August 26-27, join us for a celebration of riding bikes sans pavement!


Sunday, August 27, is the legendary (and a little rowdy) Cannondale Eager Beaver Gravel Race. 

Featuring an 100k and 40k epic lap with lots of variety to keep you on your toes.

Gravel bike riding


Friday evening
Mansfield Outdoor Centre

Set up your tent at Mansfield Outdoor Centre and get a good night's sleep!

Reserve your campsite or cabin by email at

Mansfield Outdoor Centre


Registration is open for EB XCMarathon


Sprint starts


Marathon starts


Half Marathon starts


Podium for Half Marathon


Podium for Marathon


Live music



Mansfield Ski Club


Registration is open for EB Gravel


100k starts


40k starts


BBQ at Mansfield Ski Club


Podium starts

Post-Race/Ride Weekend Activities

​Stay the weekend with us!

  • Live music on Saturday night

  • Swim in the creek

  • Camp at Mansfield Outdoor Centre 

Registration Information

The first 100 entries will get a cool hat included with registration!


Registration Wave 1: First 100 riders.

Includes a cool hat!

100k : $90   40k : $60


Registration Wave 2: 100 riders.

(You can still buy a cool hat)

100k : $90   40k : $60


Registration Wave 3: Next 150 riders.

(You can still buy the cool hat)

100k : $100    40k : $70

What do you get?

  • Skratch Lab Nutrition on course

  • Drop bags brought to the aid station 2 for you. (Don’t drop things that are valuable! The bins will be coming back after the last rider goes past!)

  • Finisher pint glass

  • A killer course with a lot of different types of "gravel"

  • Professional first aid by Odyssey Medical

  • "Over-marked" course so you can enjoy the day without worrying about getting lost

  • Inclusive and encouraging vibe

  • GPS track to follow so you are super confident

  • Wicked draw prizes!

  • Aid station on course

  • Team Colin DJ/announcer services


Highway Traffic Act

The Highway Traffic Act applies. The roads are not closed. You are expected to follow all traffic laws.


If you are caught breaking them you will be disqualified. There is a lot of climbing and rough surface and challenging roads. You will not win or lose the race by running a stop sign, so don’t!


There will be lots of signs on course. Our arrows are orange UCI-shaped arrows on a white background. We also have an X for when you miss a turn.


These are used at our discretion and are not at every turn, so keep your head up, or use your GPS.

First Aid

Odyssey Medical will be on site to take care of any first aid issues. If you or a rider near you is injured during the race call Odyssey Medical (on number plate) or report to one of the Aid Stations.

What bike can I ride?

Anything you want as long as it is safe!


Since Cannondale is our title sponsor, let’s say this course would be great on a Topstone. It would be super fast on a Super Six EVO SE. And it would be a butter-smooth, yet fast ride on a Topstone Lefty. Make sense?


Or you can be like Team Colin and ride 33mm tires no matter what and have a great time. You can ride a mountain bike, or even a fat bike! As long as you have fun.

Substance Projects' Weather Guarantee

Weather is always challenging and can completely change a race. So we developed the Substance Projects 100% Weather Guarantee: We guarantee that 100% of the course will have weather.


If any section doesn’t have weather we will refund you that percentage of your entry fee upon proof there was no weather.

Whining Policy

We have a strict "No Whining" policy. If it was all easy and downhill then it wouldn’t feel like you accomplished anything!

Inclusive Race

These are races for everyone! In the spirit of equity and inclusion we celebrate difference and especially encourage those who have historically been excluded from sport.


See our Inclusion Statement on our About Us page.

Cancellation / Refunds

For 2023 there will be NO REFUNDS for those who can’t make it on race day or for cancellation of the event for any reason.


If the event cannot proceed, registrants will have their entry carried over to the re-scheduled date or have credit for another Substance Projects Event.

Registration Form

XCMarathon + Gravel

Want to do the XCMarathon + Gravel? 


Want to do just Gravel? Use this form below.


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