2016 - 2017 USA Trail Half Marathon Calendar in May

Browse our Half Marathon Calendar for races organized in USA during the month of May bearing the tag Trail among 51 races.

Refine by

51 races

Bruneau Beast

Bruneau Beast Half Marathon
May 06, 2017 Race day in 7 months
USA / Mountain Region / Idaho / Bruneau
Half Marathon
Walk Trail Sand

Horseshoe Lake Trail Run

Horseshoe Lake Half Marathon
May 06, 2017 Race day in 7 months
USA / Pacific / California / Palo Alto
Half Marathon
Coastal Trail Runs Hilly Walk Trail

Greenwood Furnace Trail Challenge

May 07, 2017 Race day in 7 months
USA / Mid-Atlantic / Pennsylvania / Huntingdon
Half Marathon - 13.100 miles
Trail

Leoni Meadows Trail Series - Half Marathon, 5k, Kids Fun Run

Leoni Meadows Half Marathon Trail Race
May 07, 2017 Race day in 7 months
USA / Pacific / California / Grizz
Half Marathon
Hilly Fun Trail

China Camp Trail Run

China Camp Trail Run Half Marathon
May 13, 2017 Race day in 8 months
USA / Pacific / California / San Rafael
Half Marathon
Trail Inside Trail Racing

Cinderella Trail Run (May)

Half Marathon
May 13, 2017 Race day in 8 months
USA / Pacific / California / Joaquin Miller Park, Oakland
Half Marathon
Coastal Trail Runs Trail

Ice Age Trail 50

Ice Age Trail Half Marathon
May 13, 2017 Race day in 8 months
USA / East North Central / Wisconsin / La grange
Half Marathon
Trail

Mill Stone Half Marathon and 8K Trail Races

Mill Stone Half Marathon Trail Race
May 13, 2017 Race day in 8 months
USA / South Atlantic / South Carolina / Bruce Rush Pavilion, ASC Greenway
Half Marathon
Trail

Paiute Meadows Trail 50K

Trail Half Marathon
May 13, 2017 Race day in 8 months
USA / Pacific / California / Susanville
Half Marathon
Trail

Delaware Marathon, Relay & Half Marathon

Delaware Half Marathon
May 14, 2017 Race day in 8 months
USA / South Atlantic / Delaware / Wilmington
Half Marathon
Trail

The North Face Endurance Challenge New York

Half Marathon
May 14, 2017 Race day in 8 months
USA / Mid-Atlantic / New York / Bear Mountain State Park, Bear Mountain
Half Marathon
Hilly Trail The North Face Endurance Challenge

Jemez Mountain Trail Runs Half Marathon, 50K & 50-Mile Run

Jemez Mountain Trail Runs Half Marathon
May 20, 2017 Race day in 8 months
USA / Mountain Region / New Mexico / Los Alamos
Half Marathon
Hilly Trail

Chief Wetona Challenge Trail Run

Half Marathon
May 21, 2017 Race day in 8 months
USA / Mid-Atlantic / Pennsylvania / Troy
Half Marathon - 13.100 miles
Trail

Nitro Trail Half Marathon

Nitro Trail Half Marathon
May 27, 2017 Race day in 8 months
USA / Pacific / California / Pinole
Half Marathon
Brazen Racing Hilly Flat Trail

Paul Smiths Jenkins Mountain Scramble

Paul Smiths Jenkins Mountain Scramble Half Marathon
No race in 2016
USA / Mid-Atlantic / New York / Paul Smiths
Half Marathon
Hilly Trail Adirondack Trail Run Series