DateExpected
Late August 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Mansfield Outdoor Centre, Mulmur, Ontario, Canada
Mulmur, Dufferin County
Countdown
August
The full Eager Beaver: two laps of the same 32 km loop, 64 km in all. Climbing is modest at about 364 m a lap, so it's more about steady pacing than big hills.
Key facts
01Any trail-worthy, safe mountain bike is allowed; gravel and fat bikes have also been ridden
02Manual wave start, grouped by distance
03Results are split by sex, age group and bike type
Create a free training plan for the Eager Beaver Marathon 64 km
7-day free trial, no card required
The course
One lap, on repeat
Mulmur · one lap
Distance64km
Total climb364m
Start · finishOne lap · elevation
0 kmDrag map to rotate28.6 km
Weather
Late-August, Mulmur
26°CTypical high
14°CTypical low
5°CColdest in 20 years
39%Days with rain
Highs around 26°C and lows around 14°C, but it has dropped to 5°C. Rain on 39% of days.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
Training
Training for the Eager Beaver Marathon 64 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a Eager Beaver Marathon 64 km plan targets
Typical sessions
64 km with 364 m of climbing
Endurance and fatigue resistance over the full distance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long endurance rides building toward the full distance
Threshold and sweet-spot work for sustained power
Terrain and skills practice specific to the course
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your Eager Beaver Marathon 64 km plan.
7-day free trial, no card required.
More events in August in Canada
Bluewater International GranfondoExpected Early August 2027 · Bright's Grove→Glengarry Games Gravel RunExpected Early August 2027 · Maxville→Big Red Gravel RunExpected Early August 2027 · Grenville-sur-la-Rouge→Grand River Gravel RideExpected Early August 2027 · Centre Wellington→Iron Legs 50 MilerSat, 7 Aug 2027 · Alberta→Iron Legs Mountain RacesSat, 7 Aug 2027 · Alberta→
