2014 - 2015 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 36 races.

36 races

Collegiate Peaks 25M Trail Run

  • North America | USA | Mountain Region | Colorado | Buena Vista
  • Half Marathon to Full Marathon - 25 miles
  • May 02, 2015
  • Trail

Greenland Trail 25k

  • North America | USA | Mountain Region | Colorado | Greenland
  • Half Marathon to Full Marathon - 25 kilometers
  • May 02, 2015 - 08:00
  • Trail

Cinderella Trail Run 30 km (May)

  • North America | USA | Pacific | California | Joaquin Miller Park, Oakland
  • Half Marathon to Full Marathon - 30 kilometers
  • May 09, 2015 - 08:00
  • Trail

Smith Rock Ascent 15 Mile

  • North America | USA | Pacific | Oregon | Smith Rock State Park, Terrebonne
  • Half Marathon to Full Marathon - 15 miles
  • May 09, 2015 - 09:00
  • Trail Northwest Mountain Trail Series Mountain

PEAK Ultra Marathon - 15 Miles

  • North America | USA | New England | Vermont | Pittsfield
  • Half Marathon to Full Marathon - 15 miles
  • May 16, 2015 - 11:30
  • Trail

Spring Superior Trail 25k

  • North America | USA | West North Central | Minnesota | Lutsen
  • Half Marathon to Full Marathon - 25 kilometers
  • May 16, 2015 - 09:00
  • Trail

Canyon Meadow 30 km Trail Run (May)

  • North America | USA | Pacific | California | Oakland
  • Half Marathon to Full Marathon - 30 kilometers
  • May 30, 2015 - 08:00
  • Hilly Costal Trail Runs Trail

Amasa 14.5 Miler

  • North America | USA | Utah | Moab
  • Half Marathon to Full Marathon - 14.5 miles
  • May 03, 2014
  • Trail Grass Roots Events

Armstrong Redwoods 30K

  • North America | USA | California | Guerneville
  • Half Marathon to Full Marathon - 30 kilometers
  • May 03, 2014 - 08:40
  • Hilly Trail

Joe English Trail Challenge

  • North America | USA | New Hampshire | Amherst
  • Half Marathon to Full Marathon - 25 kilometers
  • May 03, 2014
  • Charity Trail

Sinister Night 27K Trail Run

  • North America | USA | Mountain Region | Arizona | San Tan Mountain Regional Park, Queen Creek, AZ
  • Half Marathon to Full Marathon - 27 kilometers
  • May 03, 2014 - 19:30
  • Night Trail Aravaipa Running

Tchimbé du Piton

  • North America | Martinique | Camp de Balata
  • Half Marathon to Full Marathon - 30 kilometers
  • May 03, 2014 - 09:00
  • Trail Mountain

The North Face Dirty Feet Kal Park 50 - 25K

  • North America | Canada | British Columbia | Vernon
  • Half Marathon to Full Marathon - 25 kilometers
  • May 04, 2014 - 07:00
  • Trail North Face Dirty Feet Trail Series Mountain

Diablo 25K

  • North America | USA | Pacific | California | Clayton
  • Half Marathon to Full Marathon - 25 kilometers
  • May 10, 2014 - 08:30
  • Hilly Trail Pacific Trail Runs

Don't Fence Me in 30K Trail Run

  • North America | USA | Mountain Region | Montana | Helena
  • Half Marathon to Full Marathon - 30 kilometers
  • May 10, 2014 - 07:30
  • Trail La Sportiva Mountain Cup