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Arizona (Parker Canyon Lake) Arizona Trail Race – Friday, April 3 (300, 750 miles)
Arizona (Prescott Prescott Monstercross - Saturday, April 4 (52, 71 miles)
Australia (Canberra) Monaro Cloudride 1000 - Saturday, April 4 (1000km)
North Carolina (Boomer) 6 Hours of Warrior Creek – Saturday, April 4 (6 hours)
Israel (Mt. Hermon) The Holyland MTB Challenge - Thursday, April 9 (1300k)
California (Frazier Park) Tour De Los Padres - Friday, April 10
Alabama (Sylacauga) Skyway Epic - Saturday, April 11 (60, 100 miles)
New Mexico (Ruidoso) 12 Hours in the Wild West - Saturday, April 11 (12 hours)
Michigan (Lowell) The Spring Lowell 50 (Gravel) - Saturday, April 11 (50 miles)
Virginia (Leesburg) Leesburg Bakers Doz. – Saturday, April 11 (13 hours)
California (San Diego) Belgian Waffle Ride (Road/Dirt) – Sunday, April 12 (200km)
Florida (Sunrise) Markham 100k - Sunday, April 12 (100km)
Arkansas (Caddo Valley) Iron Mountain MTB Marathon - Saturday, April 18 (42 miles)
North Carolina (Morrisville) Curse at the Crab - Saturday, April 18 (6 hours)
New Mexico (San Ysidro) San Ysidro Dirty Century - Saturday, April 18 (58, 73, 83, & 98 miles)
Utah (Hurricane) 6 Hours in Frog Hollow - Saturday, April 18 (6 hours)
Alabama (Talledaga) Shake n' Brake - Saturday, April 18 (25, 50, 100km)
Tennessee (Chattanooga) Soul Sucker at Raccoon Mountain - Saturday, April 11 (20, 50km)
Florida (Ocala) Hammer Head 100 - Sunday, April 19 (100 miles)
Virginia (Harrisonburg) Virginia's Rough Roubaix - Sunday, April 19 (114 miles)
Colorado (Fruita) Fruita Fat Tire Fest - Thursday, April 23 - Sunday, April 26 (Crit, Races, Demos)
Colorado (Castle Rock) Ridgeline Rampage – Saturday, April 25 (50 miles)
Arizona (Prescott) The Whiskey Off-Road – Friday, April 24- Sunday, April 26 (Pro Crit, 15, 25 and 50 miles)
Iowa (Grinnell) Trans Iowa v.10 – Saturday, April 25 - Sunday, April 26 (300+ miles)
Tennessee (Ducktown) Cohutta 100 - Saturday, April 25 (100 miles - NUE)
Tennessee (Ducktown) Big Frog 65 - Saturday, April 25 (65 miles)
Canada (Paris) Paris–Ancaster – Sunday, April 26 (70km)
Virginia (New Castle) Dragons Tale - April 26 (20, 37 miles)
Date To Be Determined
Pennsylvania (Shippensburg) Michaux Off-Road Weekend (Super D, Marathon)
Kansas (Gladstone) Bone Bender Mountain Bike Challenge (60k)
Michigan (Shelby Township) 6/12 Hours of Stony Creek – ( 6, 12 hours)
Colorado (Fruita) 18 Hours of Fruita – Friday, May 1 - Saturday, May 2 (18 hours)
Arkansas (Mountain View) Syllamo' Revenge – Saturday, May 2 (50 miles)
North Carolina (Pisgah National Forest) Pisgah MTB Adventure Race – Saturday, May 2 (Adventure Race)
Wales The Welsh Ride Thing – Saurday, May 2 - Monday, May 4 (Adventure Race)
Scotland (Blair Atholl) Cairngorms Loop – Saturday, May 2 (300 km)
British Columbia, Canada Ore Crusher – Saturday, May 9 (40km)
Arizona (Flagstaff) Aspen Asphyxiation - Saturday, May 9 (58 miles)
Colorado (Fruita) Desert RATS Classic – Saturday, May 9 (50, 100 km)
Colorado (Cortez) 12 Hours of Mesa Verde – Saturday, May 9 (12 hours)
North Carolina (Troutman) 6 Hours of Lake Norman – Saturday, May 9 (6 hours)
Wisconsin (Glenbeulah) Northern Kettles Endurance Challenge – Saturday, May 9 (Endurance)
Washington (Kitsap) Stottlemeyer 30/60 - Saturday, May 9 (30, 60 miles)
Colorado (Lakewood) Battle The Bear – Saturday, May 9th (20, 30, 50 miles)
Arkansas (Mountain View) Mountain View Epic - Saturday, May 16 (60, 100 miles)
Georgia (Watkinsville) Fort Yargo 6/3 Hour - Saturday, May 16 (3, 6 hours)
New Mexico (Gallup) Dawn 'til Dusk - Saturday, May 16 (12 hours)
Colorado (Salida) Dirty Double Fondo – Saturday, May 16 (200km)
Michigan (Arcadia) Arcadian Grit & Gravel – Saturday, May 16 (26 miles)
North Carolina (Pisgah National Forest) Pisgah 55.5K MTB Race - Saturday, May 16 (55.5km)
North Carolina (Pisgah National Forest) Pisgah 111K MTB Race - Saturday, May 16 (111km)
Oregon (Klamath Falls) Oregon Outback - Friday, May 22 (360 miles)
Wisconsin (Brown County) Stump Farm 100 - Saturday, May 23 (100 miles)
Colorado (Gunnison) The Half Growler – Saturday, May 23 (32 miles)
California (Weaverville) 6/12 Hours of Weaverville – Saturday, May 23 (6, 12 hours)
California (Graeagle) Lost & Found - Saturday, May 23 (104 miles)
Colorado (Gunnison) The Original Growler – Sunday, May 24 (64 miles)
Wisconsin (Laona) The Bear 100 - Saturday, May 23 (100 miles)
Scotland (Perthshire) Highland Trail Race – Saturday, May 23 (560 miles)
Pennsylvania (State College) Trans-Sylvania Epic 3 day - Sunday, May 24 - Tuesday, May 26 (3 stages)
Pennsylvania (State College) Trans-Sylvania Epic - Sunday, May
24 - Saturday, May 30 (7 day stage race)
Colorado (Grand Junction) Grand Junction Off-Road - Friday, May 29-Sunday, May 31 (Pro Crit, 15, 30, 40 miles)
Ohio (Loudonville) Mohican 100 – Saturday, May 30 (100 miles - NUE race)
Kansas (Emporia) Dirty Kanza 200 - Saturday, May 30 (200 miles)
Texas (Amarillo) 24 Hours in the Canyon - Saturday, May 30 - Sunday, May 31 (24 hours)
Colorado (Elbert) PV Derby - Saturday, May 30th (22, 44, 66 miles)
Colorado (Colorado Springs) The Great Bicycle Carnival for Kids on Bikes - Sunday, May 31 (Fun ride, 2 hour race)
Michigan (Kenton) Sturgeon 100 - Sunday, May 31 (62, 100 miles)
Date To Be Determined
Ontario, Canada Long Sock Classic - (35 & 70 km)
Maryland (Woodstock) Woodstock Wrecker - (XC & 4 hours)
Maryland (Flinstone) 9 Hours of Cranky Monkey – Date TBD (3 & 9 hours)
Michigan (Grayling) Hanson Hills 100 – (50 & 100 miles)
Poland (Czantoria) Beskidy MTB Trophy Thursday, June 4 - Sunday, June 7 (Stage Race)
CZECH Trans Czech-Slovakia – Friday, June 5 (1000 miles)
Wisconsin (Lake Geneva) 18 Hours of Alpine Valley – Saturday, June 6 (18 hours)
New Mexico (Los Alamos) Pajarito Burnout - Saturday, June 6 (26, 37, 62 miles)
Colorado (Castle Rock) Erock Sunrise to Sunset - Saturday, June 6 (11 hours)
Colorado (Salida) Salida Big Friggin Loop - Saturday, June 6 (89.3, 106.2 miles)
Idaho Knobby 9 to 5 - Saturday, June 6 (8 hours)
California (Temecula) 12 Hours of Temecula #2 - Saturday, June 6 (6, 12 hours)
North Carolina (Grove) Six Hours of Balsam Grove - Saturday, June 6 (6 hours)
New Jersey (Hewitt) Bear Scat 50 – Sunday, June 7 (50 miles)
Virginia (McGaheysville) Massanutten Hoo-Ha! Sunday, June 7
New York (Wilmington) Wilmington Whiteface 100k (Leadville Qualifier) - Sunday, June 7 (100k)
Virginia (Bedford) MTN Junkies Fat 5 Enduro Friday June 12 - Sunday June 14 (Crit, Endurance, XC)
Wisconsin (Langlade) The Humble 44 - Saturday June 13 (44 miles)
North Carolina (Morrisville) 6 Hours of Lake Crabtree - Saturday June 13 (6 hours)
New York (Byron) Black Fly Challenge - Saturday, June 13 (40.5 miles)
West Virginia (Bruceton Mills) Big Bear 2 x 12 Saturday, June 13 (12 hour 2 person relay)
Arizona (Grand Canyon) Grand Canyon Fat Tire Festival - Friday, June 19 - Sunday, June 21 (58 & 100 miles, tour)
California (Tahoe City) Lake Tahoe Mountain Bike Race - Saturday, June 20 (24 miles,4 hour, 8 hour)
Colorado (Bailey) The Bailey Hundo – Saturday, June 20 (100 miles - NUE)
Michigan (Wellston) The Lumberjack 100 – Saturday, June 20 (100 miles - NUE)
New Mexico (Gallup) 24 Hours in the Enchanted Forest - Saturday, June 20 - Sunday, June 21 (24 hours)
Canada (Squamish) Test of Metal – Saturday, June 20 (67k)
New Mexico (Albuquerque) Mad Cow 180 (Road/Gravel) - Saturday, June 20 (180 miles)
Wisconsin (Hatfield) Wild Ride Buzzard Buster Endurance Challenge Saturday, June 20 (2, 5, 10 hours)
Wisconsin (Cable) Chequamegon 100 - Saturday, June 20 (62, 100miles)
Georgia (Conyers) 12 Hours of Zombie Apocalypse - Saturday, June 20 (12 hours)
Indiana (Versailles) Tri-State 6 #1 - Sunday, June 21 (6 hour)
Alaska (Hope) Kenai Peninsula 250 – Friday, June 26-Monday, June 29 (265 miles)
Italy (Dolomites) XCM World Championship – Saturday, June 25 (85k)
UK (Isle of Man) Longest Day, Longest Ride – Saturday, June
27 & Sunday, June 28 (24 hours)
Utah (Cedar City) Dirt Fondo - Saturday, June 27 (25k, 60k, 100k)
Minnesota (Lutsen) Lutsen 99'er - Saturday, June 27 (19, 29, and 99 miles)
New York (Warsawing) Wildcat 100 – Saturday, June 27 (50, 100 miles)
Georgia (Acworth) 6/3 Hour Bike Race – Saturday, June 27 (6, 6 hours)
Canada (Vancouver) B.C. Bike Race – Saturday, June 27 – Saturday, July 4
New Mexico Santa Fe Big Friggin Loop – Saturday, June 27 (53, 60, 68 miles)
West Virginia (Morgantown) Hilly Billy Roubaix (UltraCX) – Saturday, June 27 (70 miles)
Colorado (Crested Butte) Crested Butte Fat Tire 40 - Saturday, June 27 (40 miles)
Colorado (Durango) Durango Dirty Century - Saturday, June 27 (100 miles)
Colorado (Fort Collins) 40 in the Fort - Saturday, June 27 (40 miles)
New York (Warwarsing) Wildcat 100 - Saturday, June 27 (50k, 100k, 100 mile)
Ohio (Lakeville) The Funk 100/200 - Saturday, June 27 (100k and 200k)
Virginia (Damascus) Iron Mountain 100k - Sunday, June 28 (100k)
Date To Be Determined
Michigan 8 Hours of Cannonsburg
CAN/US Tour Divide North/South Options (2745 miles)
Pennsylvania (State College) Stoopid 50 (50 miles) Event returns in 2016
Maryland (Germantown) 12 Hours of Cranky Monkey (3 & 12 hours)