Filthy 50

The Filthy 50 was added in 2019 and it is becoming quite the popular course due to it's remoteness and grittyness.  When we first explored the 20 mile branch, dogs weren't sure how to react to cyclists (some still don't react).  The smell of manure really, really close brought back memories of my time in the Alps.  The course will also take you through a tunnel underneath Interstate 96.  There are some very talented artists that decorated the tunnel, so be sure to check this bonus feature out!  So in short, this course will probably take you to places your GPS won't go to voluntarily.  It's worth every minute of it though!  After you hop back onto the 30 mile route, Ivan the Terrible will be waiting to see what you are made of!

The Filthy 50 is part of the Michigan Gravel Race Series (MGRS) and designated as the Long Course. 


What You Score With Your Registration!

-Customized plate with chip timing by Epic Timing
-First 800 Dirty 30 Gravel registrants get a custom skull cap to keep your noggin warm!
-Swag bag
-Well marked course with volunteers and police at pre-determined intersections
-2,319 feet of elevation gain
-3 aid stations
-Top 10 overall get very nice medals and prizes.  Top 3 in each category get a medal.
-Categories are 17 and under, 18-29, 30-39, 40-49, 50-59, 60-69, 70+, Mountain Bike, Fat Bike, Single Speed, Athena, Clydesdale, Tandem and Unicycle.
-Team Competition.  Minimum of 4 registrants.  Top 4 times to be totaled.  The lowest total team time wins the Team Competition.  Everyone on the team gets a custom Dirty 30 Cup (not just the top 4). 

Pricing, Deadlines and Start Time

-Early bird price is $57
-$5 increases on January 17, February 21 and March 20.  $10 more on April 12
-Tshirt purchase deadline is March 13
-Start time is 10:00 AM

Strava Link To Download GPX/TPX File

You must be logged into Strava to download files
50 Mile Strava File
© 2023 Dirty 30 Gravel Grinder. All Rights Reserved. Designed By Synergy Marketing Solutions.