Here is a list of most of the bigger and better off-road events in the mountain states region.

Date Name Town State Category  
1/27/16 Fat Bike World Champs Crested Butte CO Fat Bike http://www.cbchamber.com/events/fat-bike/
2/6/16  Silverton White Out Silverton CO Fat bike endurance http://silvertonwhiteout.com/
2/13/16  Winter Park Fat Bike Series: Granby Ranch Granby CO Fat Bike http://winterparkfatbikeseries.com/race2.html
2/17/16  Full Moon Fat Bike Race Steamboat Springs CO Fat Bike http://skihaussteamboat.com/nordic-cross-country/pleasant-valley-race-ride-tour/
2/20/16  Tennessee Pass Night Jam Ski Cooper CO Fat Bike http://www.cloudcitywheelers.com/events-rides/
3/5/16  Mineral Belt Mayhem Leadville CO Fat Bike http://www.cloudcitywheelers.com/events-rides/
3/5/16 Red Rock Rampage St George UT XC
3/12/16  Winter Park Fat Bike Series: Rendezvous Rally Winter Park CO Fat Bike http://winterparkfatbikeseries.com/
3/12/16 True Grit Epic St George UT Endurance MTB
4/2/16  Winter Park Fat Bike Series: 50 Mile Winter Park CO Fat Bike http://www.winterparkfatbikeseries.com/
4/2/16 Cactus Hugger St George UT XC
4/23/16  Rumble at 18 Road Fruita CO USAC short track and XC http://www.madracingcolorado.com/rumble-at-18-road-2015/
4/23/16  East Side Epic Leadville CO Fat Bike http://www.cloudcitywheelers.com/events-rides/
4/23/16 Durango Gravel Grinder Durango CO Gravel Grinder https://coloradoes.wordpress.com/
4/30/16  RME Ridgeline Rampage Castle Rock CO Endurance & XC http://www.warriorscycling.com/
5/6/16  18 Hours of Fruita Fruita CO Endurance http://18hrsoffruita.com/
5/7/16  12 Hours of Mesa Verde Cortez CO Endurance http://www.12hoursofmesaverde.com/
5/7/16  Desert RATS Classic Fruita CO Endurance http://www.geminiadventures.com/cycling-events/drclassic/
5/14/16  RME Battle the Bear Lakewood CO Endurance & XC http://www.warriorscycling.com/
5/18/16 Ascent midweek series Colorado Springs CO XC http://www.sandcreeksports.com/
5/20/16 The Grand Junction Offroad Grand Junction CO Endurance http://www.epicrides.com/index.php?contentCat=9
5/25/16 CU Short Track series #1 Boulder CO Short Track http://cushorttrack.blogspot.com/
5/25/16 Vail Recreation District Midweek MTB series Vail CO XC www.vailrec.com/sports/mountain-bike-racing/mtb-race-series
5/28/16  Gunnison Half Growler Gunnison CO Endurance http://gunnisontrails.com/gunnison-trails-events/the-original-growler/
5/29/16  Iron Horse Bicycle Classic Durango CO XC http://www.ironhorsebicycleclassic.com/mbs-mountain-bike-race
5/29/16  Gunnison Original Growler Gunnison CO Endurance http://gunnisontrails.com/gunnison-trails-events/the-original-growler/
5/29/16 Gowdy Grinder Curt Gowdy State Park WY XC http://gowdygrinder.com/index.php
6/1/16 Ascent midweek series Colorado Springs CO XC http://www.sandcreeksports.com/
6/1/16 CU Short Track series #2 Boulder CO Short Track http://cushorttrack.blogspot.com/
6/4/16  ERock Sunrise Sunset Castle Rock CO Endurance http://erockrace.com/
6/4/16  RME PV Cycle Derby Elbert CO Endurance & XC http://www.warriorscycling.com/races/pv-cycle-derby/
6/4/16 Eagle Outside Festival Eagle CO Endurance http://eagleoutsidefestival.com/
6/8/16 CU Short Track series #3 Boulder CO Short Track http://cushorttrack.blogspot.com/
6/8/16 Vail Recreation District Midweek MTB series Vail CO XC www.vailrec.com/sports/mountain-bike-racing/mtb-race-series
6/11/16  Salida Big Friggin Loop Salida CO Endurance https://coloradoes.wordpress.com/swes-event-list/sbfl/
6/11/16  GoPro Mountain Games Vail CO XC http://www.mountaingames.com/event-detail/X_Country-Mountain-Bike.aspx
6/11/16 Salida Big Friggin Loop Salida CO Endurance MTB https://coloradoes.wordpress.com/
6/11/16 Winter Park Hill Climb Winter Park CO XC
6/11/16 Glendo Trails Festival Glendo WY XC http://wyoparks.state.wy.us/Site/GlendoTrailsFestival.aspx
6/15/16 Ascent midweek series Colorado Springs CO XC http://www.sandcreeksports.com/
6/15/16 CU Short Track series #4 Boulder CO Short Track http://cushorttrack.blogspot.com/
6/18/16  Bailey Hundo Bailey CO Endurance http://www.bailey100.com/
6/18/16  Beti Bike Bash Lakewood CO Endurance & XC http://www.betibikebash.com/
6/19/16  FIBArk Arkansas Hills Mountain Bike Race Salida CO XC http://salidarec.com/fibark/
6/22/16 CU Short Track series #5 Boulder CO Short Track http://cushorttrack.blogspot.com/
6/22/16 Vail Recreation District Midweek MTB series Vail CO XC www.vailrec.com/sports/mountain-bike-racing/mtb-race-series
6/25/16  Durango Dirty Century Durango CO Endurance https://coloradoes.wordpress.com/swes-event-list/durango-dirty-century-ddc/
6/25/16 Fat Tire 40 Crested Butte CO Endurance MTB http://cbbikeweek.com/schedule/wildcat-40/
6/25/16 Durango Dirty Century Durango CO Endurance MTB https://coloradoes.wordpress.com/
6/25/16 40 in the fort Fort Collins CO Endurance MTB
6/25/16 Winter Park Super Loop Winter Park CO XC epicsingletrack.com
6/26/16 Chile Challenge ProXCT Angel Fire NM Pro XC
6/29/16 Ascent midweek series Colorado Springs CO XC http://www.sandcreeksports.com/
6/29/16 CU Short Track series #6 Boulder CO Short Track http://cushorttrack.blogspot.com/
7/4/16  Firecracker 50 Breckenridge CO Endurance http://www.mavsports.com/events/?event-categories=firecracker-50
7/6/16 CU Short Track series #7 Boulder CO Short Track http://cushorttrack.blogspot.com/
7/6/16 Vail Recreation District Midweek MTB series Vail CO XC www.vailrec.com/sports/mountain-bike-racing/mtb-race-series
7/9/16  Leadville Silver Rush 50 Leadville CO Endurance http://www.leadvilleraceseries.com/mtb/silverrush50mtb/
7/9/16 Winter Park Race Rendezvous Winter Park CO XC epicsingletrack.com
7/9/16 Crusher in the Tushar Beaver UT Gravel Grinder http://tusharcrusher.com/course
7/13/16 Ascent midweek series Colorado Springs CO XC http://www.sandcreeksports.com/
7/13/16 CU Short Track series #8 Boulder CO Short Track http://cushorttrack.blogspot.com/
7/16/16  Breckenridge 100 Breckenridge CO Endurance http://www.warriorscycling.com/races/breckenridge-100/
7/18/16 Colorado Trail Classic Molas Pass CO Ultra Endurance MTB https://coloradoes.wordpress.com/
7/20/16 CU Short Track series #9 Boulder CO Short Track http://cushorttrack.blogspot.com/
7/20/16 Vail Recreation District Midweek MTB series Vail CO XC www.vailrec.com/sports/mountain-bike-racing/mtb-race-series
7/23/16  Telluride 100 Telluride CO Endurance http://telluride100.com/
7/26/16 Pain in the Aspen Aspen CO Gravel Grinder https://coloradoes.wordpress.com/
7/26/16 Colorado Trail Race (CTR) Denver CO Ultra Endurance MTB https://coloradoes.wordpress.com/
7/27/16 Ascent midweek series Colorado Springs CO XC http://www.sandcreeksports.com/
7/27/16 CU Short Track series #10 Boulder CO Short Track http://cushorttrack.blogspot.com/
7/29/16 Leadville Stage Race Leadville CO Stage Race http://www.leadvilleraceseries.com/mtb/leadville-stage-race/
7/30/16  RME Copper Crush Copper Mountain CO Endurance & XC http://www.warriorscycling.com/
7/30/16 Winter Park Colorado Epic XC Winter Park CO XC epicsingletrack.com
8/3/16 CU Short Track series #11 Boulder CO Short Track http://cushorttrack.blogspot.com/
8/3/16 Vail Recreation District Midweek MTB series Vail CO XC www.vailrec.com/sports/mountain-bike-racing/mtb-race-series
8/6/16  Laramie Enduro 111k Laramie WY Endurance http://laramieenduro.org/
8/6/16 Power of Four Aspen CO Endurance http://www.gosnowmass.com/event/power-four-mountain-bike-race/
8/9/16 Breck Epic Breckenridge CO Stage Race http://breckepic.com/
8/10/16 CU Short Track series #12 Boulder CO Short Track http://cushorttrack.blogspot.com/
8/13/16  Leadville Trail 100 Leadville CO Endurance http://www.leadvilleraceseries.com/mtb/leadvilletrail100mtb/
8/13/16  Steamboat Stinger Steamboat Springs CO Endurance http://www.honeystinger.com/steamboatstinger.html
8/13/16 Winter Park Epic Point to Point Winter Park CO XC epicsingletrack.com
8/17/16 Vail Recreation District Midweek MTB series Vail CO XC www.vailrec.com/sports/mountain-bike-racing/mtb-race-series
8/20/16  The Mountain’s Revenge Montezuma CO Endurance https://coloradoes.wordpress.com/swes-event-list/the-mountains-revenge/
8/27/16  San Juan Crucible 90/150 Cortez CO Endurance http://ridemontezuma.weebly.com/san-juan-crucible-90150.html
8/27/16 Winter Park King of the Rockies Winter Park CO XC epicsingletrack.com
8/28/16 Gold Rush Rally Boulder/Lyons CO Gravel http://goldrushbikerally.com/
9/3/16  Ring the Peak Manitou Springs CO Endurance http://ringthepeak.com/
9/3/16 Velorution Venture Mancos CO Gravel Grinder https://coloradoes.wordpress.com/
9/3/16 Park City Point to Point Park City UT Endurance MTB http://www.thepcpp.com/
9/4/16 The Fall Classic Breckenridge CO XC
9/9/16 Outlier Bike Vail CO XC http://www.outlier.bike/
9/10/16  Vapor Trail 125 Salida CO Endurance http://www.vaportrail125.com/
9/17/16  Banana Belt Mountain Bike Race Salida CO XC http://salidabikefest.com/banana-belt-mountain-bike-race/
9/18/16  Bearlodge Mountain Classic Sundance WY XC http://www.scgmba.org/
9/24/16  Cougar Slayer Blackhawk CO Endurance https://thecougarslayer.wordpress.com/
9/24/16  Rico 50/100 Rico CO Endurance https://coloradoes.wordpress.com/swes-event-list/rico-run/
10/1/16  Dolores 100/50 Dolores CO Endurance https://coloradoes.wordpress.com/dolores-100/
10/1/16  12 Hours of Peaceful Valley Elbert CO Endurance http://www.warriorscycling.com/