Date
Sat, 27 Mar 2027
Start
10:00
Venue
27 North Bridge St, Saranac, MI 48881, United States
Saranac, Ionia County
Countdown
March
The Filthy 50 is 80 km of gravel on a single loop. A step up from the 48 km, with a much smaller field so you'll spend plenty of time riding on your own.
Create a free training plan for the Dirty 30 Gravel Grinder 80 km
7-day free trial, no card required
The course
The route
Saranac
Distance80km
StartElevation
0 kmDrag map to rotate79.4 km
Weather
Late-March, Saranac
9°CTypical high
-3°CTypical low
-14°CColdest in 20 years
37%Days with rain
Highs around 9°C and lows around -3°C, but it has dropped to -14°C. Rain on 37% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
OrganiserRaymond Passchier
Websitedirtythirtygravelgrinder.com
Instagram@dirty30gravel
Running since2018
Training
Training for the Dirty 30 Gravel Grinder 80 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 Dirty 30 Gravel Grinder 80 km plan targets
Typical sessions
80 km
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
Group rides for drafting and bunch-riding skills
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 Dirty 30 Gravel Grinder 80 km plan.
7-day free trial, no card required.
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