Eager Beaver Gravel / XCMarathon Weekend

Saturday Aug 13 2022 - Sunday Aug 14 2022

Mansfield Outdoor Centre

Register for Aug. 13 Gravel races here.

Register for Aug. 14 XCM races here.


Back and bigger than ever!

The Eager Beaver is back with more punch and more fun than ever before. Gravel Race, XCMarathon Mountain Bike Race and Stage Race — all in one fun weekend!

August 13 & 14, join us for a celebration of riding bikes without pavement this summer!


Saturday, August 13, is the legendary (and a little rowdy) Cannondale Eager Beaver Gravel Race – On. Gravel Series #3. Get ready for 100k or 40k of awesome ‘gravel’ riding.

After your ride join us for for some music/campfire/river swim at Mansfield Outdoor Centre (MOC) and get ready for Sunday!


The XCMarathon series is back again for 2022 with a classic rip through the trails of Dufferin Forest and some old and a lot of new trails at MOC. There are lots of ambitious build projects underway so join us for a great day of hammering the mountain bike specific trails.


  • Open
  • Open Women
  • Over 50 Open
  • Over 50 Women
  • Single Speed


Overall Champion of Everything!

Yes, we will have a overall weekend champions ranking. Just enter the Gravel and the XCMarathon races and you will be included in this classification.

Distances will be

  • Gravel 100/XCMarathon
  • Gravel 40/Half-Marathon


Course maps will be coming up fast! (A little later for the XCMarathon course as some of the trails are still being built!)


Very similar to last years course with a few changes since they have fixed the culvert on 3rd Line.

  • 40k ~ 400m climbing
  • 100k ~ 1900m climbing



The course will feature all the best trails in the Dufferin County Forest along with the great new/re-opened trails in MOC. Team VanGo have been busy beavers (see what we did there! 🙂 ) building new trails for us to enjoy. And we will use as all of them!!! There are not a lot of ‘real’ climbs but the course is always rolling and flowy with lots of great berms to hit and some killer flow.


The course will be around 60k for the XCMarathon and 30k for the Half-Marathon.
Map and further details coming soon.

Registration Details

Register for Aug. 13 Gravel races here.

Register for Aug. 14 XCM races here.

For both the Gravel and XCM races, the first 100 entries will get a cool hat included with registration!

Registration Wave 1: First 100 riders. Includes a cool hat!

Aug. 13 Gravel 40k : $60

Aug. 13 Gravel 100k : $80

Aug. 14 Half-Marathon : $55

Aug. 14 XCMarathon  : $65


Registration Wave 2: 100 riders. You can still buy the cool hat.

Aug. 13 Gravel 40k : $60

Aug. 13 Gravel 100k : $80

Aug. 14 Half-Marathon : $55

Aug. 14 XCMarathon : $65


Registration Wave 3: Next 150 riders. You can still buy the cool hat.

Aug. 13 Gravel 40k : $75

Aug. 13 Gravel 100k : $95

Aug. 14 Half-Marathon  : $65

Aug. 14 XCMarathon : $75



Road Rules

The Highway Traffic Act applies
Important reminder for everyone riding the Eager Beaver. 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 signage on course. Arrows warning of a turn, arrows telling you to turn, arrows telling you that you have made the right turn, arrows telling you to go straight…. Lots of arrows.
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 you head up, or use your GPS.


Odyssey Medical

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.


Insurance/License/OCA Membership:

Insurance for the event and sanctioning will be provided by the Ontario Cycling Association. All participants must be a member of the OCA or an affiliated UCI body. We will be offering, for a nominal cost,  one-day membership at registration for those who do not intend to get a membership this year.


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, you can even ride 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.



We will have a strict ‘No Whining’ policy. If it was all easy and downhill then it wouldn’t feel like you have 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’ page.


Cancellation/ Refunds

For 2022 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.




Click "Submit" to join our email list to get info and updates about our events. We even occasionally send out a newsletter. (And rest easy - we never sell or rent our subscriber lists.)