2015 - 2016 USA Trail Ultramarathon Calendar in December

Browse our Ultramarathon Calendar for races organized in USA during the month of December bearing the tag Trail among 38 races.

38 races

Calero Park Run

Calero Park 50K Run
  • 2015-12-05
  • USA | California | San Jose
  • Ultramarathon - 50 kilometers
  • Hilly Trail

Caloosahatchee Ultra

Caloosahatchee Ultra 50K
  • 2015-12-05
  • USA | Florida | Alva
  • Ultramarathon - 50 kilometers
  • Trail

Hitchcock Hundred

Hitchcock Hundred 100 Miler
  • 2015-12-05
  • USA | Iowa | Honey Creek
  • Ultramarathon - 100 miles
  • Trail

Hitchcock Hundred

Hitchcock Hundred 50 Miler
  • 2015-12-05
  • USA | Iowa | Honey Creek
  • Ultramarathon - 50 miles
  • Trail

Isle du Bois Trail Run

Isle du Bois 54 km Trail Run
  • 2015-12-05
  • USA | Texas | Pilot Point
  • Ultramarathon - 54 kilometers
  • Trail

McDowell Mountain Frenzy

McDowell Mountain Frenzy 50K
  • 2015-12-05
  • USA | Arizona | Fountain Hills
  • Ultramarathon - 50 kilometers
  • Trail Aravaipa Running

TARC Fells Trail Ultra

TARC Fells Trail Ultra 32M
  • 2015-12-05
  • USA | Massachusetts | Stoneham
  • Ultramarathon - 32 miles
  • Trail Tarc Trail Series

TARC Fells Trail Ultra

TARC Fells Trail Ultra 40M
  • 2015-12-05
  • USA | Massachusetts | Stoneham
  • Ultramarathon - 40 miles
  • Trail Tarc Trail Series

The North Face Endurance Challenge California

The North Face Endurance Challenge California 50K
  • 2015-12-05
  • USA | California | San Francisco
  • Ultramarathon - 50 kilometers
  • Trail The North Face Endurance Challenge

The North Face Endurance Challenge California

The North Face Endurance Challenge California 50 Mile
  • 2015-12-05
  • USA | California | San Francisco
  • Ultramarathon - 50 miles
  • Trail The North Face Endurance Challenge

The Guana River 50K Trail Run

  • 2015-12-06
  • USA | Florida | South Ponte Vedra
  • Ultramarathon - 50 kilometers
  • Trail Relay

Bulow Woods Trail Race and Ultra Marathon

50K Ultra Marathon
  • 2015-12-12
  • USA | Florida | Ormond Beach
  • Ultramarathon - 50 kilometers
  • Trail

Bigfoot 50K

Bigfoot 50K
  • 2015-12-12
  • USA | Ohio | Salt Fork State Park, Lore City
  • Ultramarathon - 50 kilometers
  • Trail Western Reserve Racing

Brazos Bend 100

Brazos Bend 100 Miler
  • 2015-12-12
  • USA | Texas | Needville
  • Ultramarathon - 100 miles
  • Fast Flat Fun Trail Relay

Brazos Bend 100

Brazos Bend 50 Miler
  • 2015-12-12
  • USA | Texas | Needville
  • Ultramarathon - 50 miles
  • Fast Flat Fun Trail