2015 - 2016 North America Trail Half Marathon to Full Marathon Calendar in May

Browse our Calendar for races longer than a half marathon but shorter than a full marathon organized in North America during the month of May bearing the tag Trail among 43 races.

43 races

Greenland Trail 50k

Greenland Trail 25k
  • 2016-05-01
  • USA | Colorado | Greenland
  • Half Marathon to Full Marathon - 25 kilometers
  • Trail

PEAK Ultra Marathon

15 Miles
  • 2016-05-21
  • USA | Vermont | Pittsfield
  • Half Marathon to Full Marathon - 15 miles
  • Trail

Grand Canyon Ultras

Grand Canyon 25K
  • 2016-05-21
  • USA | Arizona | Dry Park Meadows
  • Half Marathon to Full Marathon - 25 kilometers
  • Trail Ultra Adventures Mountain

Sun Mountain

Sun Mountain 25K
  • 2016-05-21
  • USA | Washington | Winthrop
  • Half Marathon to Full Marathon - 25 kilometers
  • Trail Rainshadow Running

Blackfoot Ultra

Blackfoot 25 Km Baby Ultra
  • 2016-05-28
  • Canada | Alberta | Edmonton
  • Half Marathon to Full Marathon - 25 kilometers
  • Walk Trail

Pineland Farms Trail Running Festival

Pineland Farms 25K Trail
  • 2016-05-29
  • USA | Maine | New Gloucester
  • Half Marathon to Full Marathon - 25 kilometers
  • Hilly Trail

Santa Barbara Trail Run

Santa Barbara 25K Trail Run
  • 2014-05-31
  • USA | California | Santa Barbara
  • Half Marathon to Full Marathon - 25 kilometers
  • Trail

Amasa

Amasa 14.5 Miler
  • 2015-05-02
  • USA | Utah | Moab
  • Half Marathon to Full Marathon - 14.5 miles
  • Trail Grass Roots Events

Armstrong Redwoods

Armstrong Redwoods 30K
  • 2015-05-02
  • USA | California | Guerneville
  • Half Marathon to Full Marathon - 30 kilometers
  • Hilly Trail

Collegiate Peaks Trail Run

Collegiate Peaks 25M Trail Run
  • 2015-05-02
  • USA | Colorado | Buena Vista
  • Half Marathon to Full Marathon - 25 miles
  • Trail

Sinister Night Trail Runs

Sinister Night 27K Trail Run
  • 2015-05-02
  • USA | Arizona | San Tan Mountain Regional Park, Queen Creek, AZ
  • Half Marathon to Full Marathon - 27 kilometers
  • Night Trail Aravaipa Running

Tchimbé Raid

Tchimbé du Piton
  • 2015-05-02
  • Martinique | | Camp de Balata
  • Half Marathon to Full Marathon - 30 kilometers
  • Trail Mountain

Ride the Wind 100M/50M/25M

25K
  • 2015-05-03
  • USA | Nevada | Las Vegas
  • Half Marathon to Full Marathon - 25 kilometers
  • Trail Elemental Running and Training

Ride the Wind 100M/50M/25M

25M
  • 2015-05-03
  • USA | Nevada | Las Vegas
  • Half Marathon to Full Marathon - 25 miles
  • Trail Elemental Running and Training

Joe English Trail Challenge

  • 2015-05-03
  • USA | New Hampshire | Amherst
  • Half Marathon to Full Marathon - 25 kilometers
  • Charity Trail