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Dirty 30 Gravel Grinder - 2025

April 19, 2025

Dirty 30 Gravel Grinder - 2025

27 North Bridge St, MI, USA · Raymond - Dirty 30 Gravel Grinder

6.99 mi16 mi29.87 mi50 mi50.25 mi100.02 mi

About this event

The Dirty 30 events will test even the most seasoned rider and has a course for the novice runner or cyclist. The courses are through serene and peaceful farmland, with miles of gravelicous ups, downs and flats that will take your breath away.The Dirty 30 race is part of the Michigan Gravel Race Series (MGRS) and designated as the Short Course.

Photos

Routes

Slick 6

6.99 mi · ↗ 395 ft · 75% gravel · $18 entry

6-Mile Ride
Do want to ride with your little one at 8:30 AM before the other races start at 10 AM?
Or are you newer to the sport and want to dip your toe into the waters of gravel adventure? 
You are in luck because the Slick 6 Bike starts at 8:30 AM. The Slick 6 Bike takes place on a lot of gravel roads and shares the same roads as the Sick 6 Run, plus some extra. The Slick 6 Bike starts at 8:30 AM in downtown Saranac and takes you slightly up to wooded forests and really hard packed gravel. You will hit a few hills on Ivan on your way back to town. It will be amazing!
Route details ↗

Slick 6 Bike

6.99 mi · ↗ 395 ft · 75% gravel · $18 entry

6-Mile Ride
Do want to ride with your little one at 8:30 AM before the other races start at 10 AM?
Or are you newer to the sport and want to dip your toe into the waters of gravel adventure? 
You are in luck because the Slick 6 Bike starts at 8:30 AM. The Slick 6 Bike takes place on a lot of gravel roads and shares the same roads as the Sick 6 Run, plus some extra. The Slick 6 Bike starts at 8:30 AM in downtown Saranac and takes you slightly up to wooded forests and really hard packed gravel. You will hit a few hills on Ivan on your way back to town. It will be amazing!
Route details ↗

Unclean 16

16 mi · ↗ 659 ft · 75% gravel · $40 entry

MGRS Mini
The Unclean 16 is a perfect course for all levels of riders. The first part of the course meanders east through open farmland with picturesque barns sure to bring great joy to every rider. As the course heads back west, the course becomes more wooded. Riders will cross a babbling brook before a slight increase in elevation brings you to the top of a road where you then head north, enjoying a downhill ride all the way back to Saranac to the finish.
Route details ↗

Unclean 16

16 mi · ↗ 659 ft · 75% gravel · $40 entry

MGRS Mini
The Unclean 16 is a perfect course for all levels of riders. The first part of the course meanders east through open farmland with picturesque barns sure to bring great joy to every rider. As the course heads back west, the course becomes more wooded. Riders will cross a babbling brook before a slight increase in elevation brings you to the top of a road where you then head north, enjoying a downhill ride all the way back to Saranac to the finish.
Route details ↗

Dirty 30 mile

29.87 mi · ↗ 1,507 ft · 75% gravel · $55 entry

Our most popular event by far, the Dirty 30 will test even the most seasoned rider. If Ivan the Terrible doesn't put the hurt on you, we need to come up with a more challenging hill!
The Dirty 30 follows the Unclean 16 course, through serene and peaceful farmland, with 14 miles of added gravelicous ups, downs and flats that will take your breath away.
The Dirty 30 is part of the Michigan Gravel Race Series (MGRS) and designated as the Short Course.
Route details ↗

Dirty 30

29.87 mi · ↗ 1,507 ft · 75% gravel · $55 entry

Dirty 30
MGRS Short
Our most popular event by far, the Dirty 30 will test even the most seasoned rider. If Ivan the Terrible doesn't put the hurt on you, we need to come up with a more challenging hill!
The Dirty 30 follows the Unclean 16 course, through serene and peaceful farmland, with 14 miles of added gravelicous ups, downs and flats that will take your breath away.
The Dirty 30 is part of the Michigan Gravel Race Series (MGRS) and designated as the Short Course.
Route details ↗

Filthy 50

50 mi · ↗ 2,319 ft · 75% gravel · $60 entry

Filthy 50
MGRS Long
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.
Route details ↗

Filthy 50

50.25 mi · ↗ 2,319 ft · 75% gravel · $60 entry

MGRS Long
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.
Route details ↗

Savage Century

100.02 mi · ↗ 4,074 ft · 90% gravel · $85 entry

MGRS Ultra
The Savage Century gravel course is simply amazing. Open farmland, pristine woods and secluded roads are just a few of the sights you will see on this 100-mile gravel adventure. Don’t get too comfortable in the saddle. Ivan will be there to give you a rude awakening as you near the finish line.
Matt Acker was pivotal in helping create the 130 mile course before it changed to 100 miles in 2025. Thank you for being so awesome and gracious Matt!
The Savage Century is a solo endeavor. No outside assistance providing fluid/food is allowed in the Savage Century. Other cyclists in the Savage Century can assist each other. If you break down or become injured during the Savage Century, please contact your rescue crew or contact the phone number listed on the back of your race plate so pick up arrangements can be made. Please notify us if you are dropping. It is very important for us to know if you drop so that we can account for everyone at the end of the day.
Savage Century registrants that complete this extremely challenging 100 mile course within 6.5 hours will be awarded the coveted Savage Century HATCHET or a custom Savage Century insulated cup!
All Savage Century racers get a T-shirt. Any Savage Century riders that finish before 5 PM also get a groovy Savage Century Finisher patch!
Route details ↗

Savage Century

100.02 mi · ↗ 4,074 ft · 75% gravel · $85 entry

Savage Century
MGRS Ultra
The Savage Century gravel course is simply amazing. Open farmland, pristine woods and secluded roads are just a few of the sights you will see on this 100-mile gravel adventure. Don’t get too comfortable in the saddle. Ivan will be there to give you a rude awakening as you near the finish line.
Matt Acker was pivotal in helping create the 130 mile course before it changed to 100 miles in 2025. Thank you for being so awesome and gracious Matt!
The Savage Century is a solo endeavor. No outside assistance providing fluid/food is allowed in the Savage Century. Other cyclists in the Savage Century can assist each other. If you break down or become injured during the Savage Century, please contact your rescue crew or contact the phone number listed on the back of your race plate so pick up arrangements can be made. Please notify us if you are dropping. It is very important for us to know if you drop so that we can account for everyone at the end of the day.
Savage Century registrants that complete this extremely challenging 100 mile course within 6.5 hours will be awarded the coveted Savage Century HATCHET or a custom Savage Century insulated cup!
All Savage Century racers get a T-shirt. Any Savage Century riders that finish before 5 PM also get a groovy Savage Century Finisher patch!
Route details ↗

Registration

Opens
November 20, 2024
Deadline
April 19, 2025
On-site registration
Yes

Volunteer info

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Event details are provided by the organizer. Gravel Calendar LLC is not responsible for their accuracy. Please participate at your own risk.

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