If you love long distances and you love mountain bikes, consider a ‘Dirty 100’  They are not nearly as common as regular centuries and usually a bit more intense.  Here is a list of the ones I have found.  If you know of any others put the events in the comments and I will add them to the post.

Not sure the best way to order thes so I will just break them out by month.  

The dates are for 2018, so if you are reading this in the future, the dates may shift by a few days.  (Hi from the Past)







 True Grit Epic — March 10, St George UT, 600 people max.


 Cohutta 100 – April 28, Ducktown, TN, 275 people max  http://www.roostracingllc.com/description/ 




Mohican Mountain Bike 100, June 2nd  Loudonville, OH  700 riders max.  http://ombc.net/mtb-100/mtb-100-2 

Lumberjack 100 – June 16  Wellston, MI 425 riders max.  http://lumberjack100.com/ 

Bailey Hundo – June 16,  Bailey, CO 200 riders max  http://baileyhundo.org/ 



Breckenridge 100 – July 14th   Breckenridge CO 750 riders max

High Cascades 100 July 21 Bend, OR 350 riders max  https://www.highcascades100.com/ 

Wilderness 101 – July 28th, State College, PA 400 riders max

Butte 100 – July 28th Butte Montana, (250 riders max I think)



Cascade Creampuff 100  Early August,   Eugene, Oregon   http://www.cascadecreampuff.com/ 

Leadville 100 MTB, Leadville CO

Pierre’s Hole 100 August 4 Alta, WY  (450 riders max)

Crotched Mountain 100 August 18 Bennington, NH (650 riders max)  (I think the Hampshire 100 turned into this)

Hampshire 100  



Volcano 100 September 1 Liberia, Costa Rica (1200 riders max)

Shenandoah 100 September 2 Harrisonburg, VA (650 riders max)

Barnburner 100  September 8  Part of the leadville race series  http://www.barnburnermtb.com/ 

Marji Gesick 100 September 22 Ishpheming, MI (700riders max)

Big Bear Grizzly 100 September 29 Big Bear Lake, CA (500 riders max)










Other Races in the past (may or may not be active)

Patapsco 100

Hampshire 100  looks like 2016 was the last year  http://www.hampshire100.com/

Oak Ass 100 Pelham Alabama, Think this series is over

Fools Gold 100 Dahlonegha, GA Think this turned into a 60 mile race


This is a 12 hour ride but coold be cool 12 hours of Tsali  it is in Bryson City North Carolina




Other Resources and Races

There are many other types of events besides 100 mile rides here is a good calendar that covers many of these