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Twelve Hour Events

Upcoming Events

Past Events

01/26/08: 12 Hours Of Temecula #1 (CA)
02/02/08: The Dirty Dozen™ 12 & 6 Hour (TX)
02/16/08: 12 Hours of Santos (FL)
08/16/08: Rapture In Misery 6/12 (MO)
05/31/08: Pat's Peak MTB Festival (NH)
11/01/08: 12 Hours Of Temecula #3 (CA)
06/14/08: 12 Hours Of Temecula #2 (CA)
05/02/08: Dirt Sweat & Gears (TN)
06/21/08: Cowbell Challenge (NC)
04/05/08: Baker's Dozen (SC)
04/19/08: Leesburg Bakers Dozen (VA)
06/21/08: 12 Hours of Cumberland Marathon #4 (BC)
05/24/08: 12 & 24 Hours of Boyne (MI)
06/13/08: Race to Sunset (ND)
05/24/08: 12 Hours of Weaverville (CA)
06/20/09: 8th Annual Cowbell Challenge (NC)
05/09/09: Dirt, Sweat, and Gears (TN)
11/08/08: 24 Hours of Fury (AZ)
01/24/09: 12 Hours Of Temecula #1 (CA)
09/12/09: 12 Hours of the Canal Loop (KY)
11/07/09: 12 & 24 Hours of Fury (AZ)
05/23/09: 12 Hours of Weaverville (CA)
02/07/09: The Dirty Dozen™ 12 & 6 Hour (TX)
08/22/09: 12 Hours of Humboldt (CA)
08/15/09: Rapture In Misery 6/12 (MO)
04/11/09: Dawn Til Dusk (NM)
05/09/09: 12 Hours Of Creek to Peak (WV)
07/18/09: 12 Hours At Night Mtb Ride (AZ)
09/05/09: 24 Hours of Seven Oaks (IA)
09/19/09: The 3rd Annual 12 Hours of Bradbury Mountain (ME)
09/19/09: 12/24 Hours of Mohican (OH)
10/10/09: Tree Shaker 12 & 6 Hour MTB Challenge (SC)
09/19/09: 12/24 Hours of Mohican (OH)
10/09/09: Helen Fat Tire Festival (GA)
11/14/09: 12 Hours of Temecula #2 (CA)
01/23/10: 12 Hours of Pain & Purpose (AZ)
10/24/09: 12 Hours of Pine Log (FL)
05/15/10: Dirt Sweat and Gears (TN)
11/21/09: Heather Rizzi's 12 Hour MTB / Run (NY)
01/23/10: 12 Hours Of Temecula #1 (CA)
11/13/10: 12 Hours Of Temecula #3 (CA)
04/17/10: Leesburg Bakers Dozen (VA)
05/08/10: 12 Hours Of Mesa Verde (CO)
01/02/10: 12 Hours of Oleta (FL)
02/20/10: 12 Hours of Santos (FL)
08/14/10: Rapture in Misery (MO)
05/01/10: 12 Hours of Lodi Farm (VA)
04/10/10: Dawn 'til Dusk (NM)
05/01/10: Dirty Spokes (GA)
09/04/10: 24 Hours of Leadville (CO)
06/19/10: 12 Hours at John Muir (WI)
05/08/10: Stump Farm 12 (WI)
07/03/10: Thunderdown in the Underdown (WI)
05/08/10: 12 Hours of Mesa Verde (CO)
05/22/10: 12 Hours of Tsali (NC)
05/22/10: 12 Hours of Northern Kettles (WI)
08/14/10: 12 Hours of Blue Mounds (WI)
09/04/10: Twelve Hours of Pitch Black Singletrack (WI)
10/02/10: Metro Challenge (WI)
05/29/10: Great Midwest Marathon and Endurance Festival (WI)
08/28/10: Tribble Mill Park 12/6 Hours (GA)
06/12/10: GA Intl Horse Park 12/6 Hour (GA)
06/26/10: 12 hours of Cranky Monkey (VA)
05/22/10: 12 & 6 Hours of Weaverville (CA)
07/17/10: 12 Hours At Night Mountain Bike Endurance Race (AZ)
02/06/10: The Dirty Dozen™ 12 & 6 Hour (TX)
09/18/10: 12/24 Hours of Mohican (OH)
10/02/10: 12 Hours of Stank (TN)
06/20/10: 12 hours of Capital View (KY)
05/15/10: 6 & 12 Hours of Stony Creek (MI)
05/29/10: 12 & 24 Hours of Boyne (MI)
07/17/10: 6 & 12 Hours of Ithaca (MI)
08/14/10: 6 & 12 Hours of Pando (MI)
09/04/10: 6 & 12 Hours of Drummond Island (MI)
09/18/10: 12 & 24 Hours of Hanson Hills (MI)
10/09/10: 6 & 12 Hours of Addison Oaks (MI)
06/12/10: 12 Hours Of Temecula #2 (CA)
07/17/10: 12 Hours At 909 (NY)
09/18/10: 12 Hours of Dauset (GA)
09/18/10: 12 hrs Behind the Prison (CO)
09/18/10: 12 Hours of Bradbury Mountain (ME)
08/27/10: Lunacy on the Lake (TX)
08/28/10: Chain Buster Productions 12/6 (GA)
06/12/10: Chain Buster Productions 12/6 (GA)
09/11/10: 12 Hours of Snowmass (CO)
08/21/10: Ole Bull Midnight Madness (PA)
07/10/10: Pats Peak MTB Festival (NH)
09/25/10: Terra Firma Adventure Race (TX)
06/12/10: Big Bear “2 X 12” (WV)
09/11/10: Sac River 6/12 Goodtime MTB Race (MO)
11/06/10: 12 & 24 Hours of Fury (AZ)
11/27/10: 6 & 12 Hours of Bootleg Canyon (NV)
10/09/10: Tree Shaker 12 & 6 Hour MTB Challenge (SC)
10/23/10: 12 Hours of Pine Log (FL)
10/09/10: Chain Buster 12/6 Hour (NC)
05/14/11: Dirt, Sweat and Gears (TN)
02/05/11: Dirty Dozen Mountain Bike Race (TX)
07/16/11: 12 Hours At Night (AZ)
04/09/11: Leesburg Bakers Dozen (VA)
06/11/11: Pats Peak MTB Festival (NH)
04/09/11: Dawn 'til Dusk (NM)
03/05/11: Eco Lonestar Adventure Race (TX)
11/05/11: 12 & 24 Hours of Fury (AZ)
05/14/11: 12 Hours in the Wild West (NM)
05/07/11: 12 Hours of Mesa Verde (CO)
09/24/11: 12 Hours of the Canal Loop (KY)
09/24/11: 12 Hours of Capitol Forest (WA)
05/21/11: 12 Hours and 6 Hours of Weaverville (CA)
07/30/11: 12 Hours of Millstone (VT)
09/24/11: 12 & 6 Hours of Capitol Punishment (WA)
09/10/11: 12 Hours of Snowmass (CO)
07/23/11: 12/6 Hours of Humboldt (CA)
10/15/11: Red Bull Final Descent - 12 hour Downhill Mtn Bike Enduro - Angel Fire Bike Park, NM (NM)
02/02/12: Dirty Dozen Mountain Bike Race (TX)
04/14/12: Dawn 'til Dusk (NM)
05/12/12: 12 Hours in the Wild West (NM)
03/10/12: Eco Lonestar Adventure Race (TX)
06/23/12: 12 & 6 Hours of Capitol Punishment (WA)
05/19/12: 6/12 Hours of Weaverville (CA)
07/28/12: 6/12 Hours of Humboldt (CA)
11/23/13: Reveille Peak 100 (TX)
08/10/13: 6/12 Hours of Humboldt (CA)
02/15/14: 12 Hours / 6 Hours of Santos (FL)

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