March 2021 Half Marathons

NOTE: Many races have been cancelled, postponed, or switched to virtual-only due to the ongoing COVID-19 pandemic. We’re doing our best to update information as soon as possible, but check the race’s website for the latest details.

See all March 2021 half marathons across the USA below, or click Race Calendars above to see each state’s calendar. For each race, you’ll find course maps, elevation profiles, reviews and info on how to register.

Monday, March 1 – Friday, March 5


Fri Mar 5	Dust Bowl Series Marathon Half Marathon 10K & 5K – Day 1	Dalhart TX

Saturday, March 6


Sat Mar 6	Berry Half Marathon 10K & 5K	Rome GA
Sat Mar 6	Best Damn Race Orlando Half Marathon 10K & 5K	Orlando FL
Sat Mar 6	Creve Coeur St. Paddy's Half Marathon & 7K	Maryland Heights MO
Sat Mar 6	Crystal Coast Half Marathon 10K & 5K	Morehead City NC
Sat Mar 6	Dirty Hurty Half Marathon	Ivins UT
Sat Mar 6	Dust Bowl Series Marathon Half Marathon 10K & 5K – Day 2	Clayton NM
Sat Mar 6	Lake Sammamish Half Marathon	Sammamish WA
Sat Mar 6	Little Patuxent River Half Marathon	Columbia MD
Sat Mar 6	Long Play Trail Run Half Marathon 33.3M & 10K	Brooksville FL
Sat Mar 6	Lucky Leprechaun Half Marathon 10-Miler & 5K	Versailles KY
Sat Mar 6	Mesquite Canyon Trail Runs	Waddell AZ
Sat Mar 6	Rolling Hills Half Marathon 10K & 5K	Lorton VA
Sat Mar 6	Sand Hollow Marathon & Half Marathon	Hurricane UT
Sat Mar 6	The Woodlands Marathon Half Marathon 5K 2K & Relay	The Woodlands TX

Sunday, March 7


Sun Mar 7	305 Half Marathon & 5K	Miami Beach FL
Sun Mar 7	Alamo 13.1 Marathon & Half Marathon	San Antonio TX
Sun Mar 7	Dust Bowl Series Marathon Half Marathon 10K & 5K – Day 3	Guymon OK
Sun Mar 7	Hampton Half Marathon & 5K	Hampton Beach NH
Sun Mar 7	Little Rock Marathon Half Marathon & 10K	Little Rock AR
Sun Mar 7	Louisiana Marathon & Half Marathon	Baton Rouge LA
Sun Mar 7	That Dam Run Half Marathon 10K & 5K	Greenwood Village CO

Monday, March 8 – Friday, March 12


Mon Mar 8	Dust Bowl Series Marathon Half Marathon 10K & 5K – Day 4	Ulysses KS
Tue Mar 9	Dust Bowl Series Marathon Half Marathon 10K & 5K – Day 5	Lamar CO

Saturday, March 13


Sat Mar 13	Cactus Classic Trail Race Marathon Half Marathon & 10K	Manito IL
Sat Mar 13	Live Well Half Marathon 5K & 1-Mile	Greenville NC
Sat Mar 13	Montgomery Half Marathon & 5K	Montgomery AL
Sat Mar 13	Race for the Green Half Marathon & 5K	Seneca SC
Sat Mar 13	Six Tunnels to Hoover Dam Half Marathon 12K 5K & 1-Mile	Boulder City NV
Sat Mar 13	Skidaway Island Marathon & Half Marathon	Savannah GA
Sat Mar 13	Starkey Wilderness Stomp Half Marathon Quarter Marathon & 5K	New Port Richey FL
Sat Mar 13	Tucson Shamrock Half Marathon 10K & 5K	Tucson AZ

Sunday, March 14


Sun Mar 14	Arizona Distance Classic Half Marathon Quarter Marathon & 5K	Tucson AZ
Sun Mar 14	Bolingbrook St. Paddy's Half Marathon & 5K	Bolingbrook IL
Sun Mar 14	Celebrate Life Half Marathon & Relay	Rock Hill NY
Sun Mar 14	March Madness Half Marathon	Cary IL
Sun Mar 14	Pistol Creek Run Marathon & Half Marathon	Alcoa TN
Sun Mar 14	St. Patty's Half Marathon & 5K	Washington DC
Sun Mar 14	Zydeco Marathon & Half Marathon	Lafayette LA

Saturday, March 20


Sat Mar 20	Alsea Falls Spring Fling Half Marathon 10K & 5K	Alsea Falls OR
Sat Mar 20	Alton Half Marathon & 5K	Alton IL
Sat Mar 20	Asheville Half Marathon at Biltmore Estate	Asheville NC
Sat Mar 20	Blood Sweat & Beers Marathon Half Marathon 50K 30K 10K 5K & 2M	Boulder City NV
Sat Mar 20	Boulder Crest Half Marathon 10K & 5K	Springfield VA
Sat Mar 20	Brooklyn Spring Half Marathon	Brooklyn NY
Sat Mar 20	Canyonlands Half Marathon & 5-Miler	Moab UT
Sat Mar 20	Chambersburg Half Marathon	Chambersburg PA
Sat Mar 20	Dash Point State Park Trail Half Marathon & 10K	Federal Way WA
Sat Mar 20	Equinox Half Marathon 10K & 5K	Wentworth NC
Sat Mar 20	Grasslands Trail Run Marathon Half Marathon & 50-Mile	Decatur TX
Sat Mar 20	Labor of Love Marathon Half Marathon 50M 50K 10K & 5K	Lovell Canyon NV
Sat Mar 20	Longview Half Marathon	Longview TX
Sat Mar 20	Lucky 13 Half Marathon 10K & 5K	West Jordan UT
Sat Mar 20	Napa Valley Trail Marathon Half Marathon & 10K	Calistoga CA
Sat Mar 20	Our Lady of the Lake Children's Hospital Amazing Half Marathon & 5K	Baton Rouge LA
Sat Mar 20	On the Run Half Marathon	Old Orchard Beach ME
Sat Mar 20	San Felipe Shootout Half Marathon 10K & 5K	San Felipe TX
Sat Mar 20	Seabrook Lucky Trail Marathon 3/4 Marathon Half Marathon & Relay	Seabrook TX
Sat Mar 20	Special 13 & 26 Mile Trail Run	Safe Harbor PA
Sat Mar 20	Valley to the Sea Half Marathon 10K & 5K	Wailuku HI
Sat Mar 20	Wanderlust Half Marathon 10K & 5K	Fredericksburg TX

Sunday, March 21


Sun Mar 21	All-Out Spring Fever Half Marathon 10K & 5K	Golden CO
Sun Mar 21	Asheville Marathon & Half Marathon at Biltmore Estate	Asheville NC
Sun Mar 21	Mill Creek Distance Classic Half Marathon & 5K	Youngstown OH
Sun Mar 21	Napa Valley Women's Half Marathon & 5K	Napa CA
Sun Mar 21	Pearland Half Marathon & 10K	Pearland TX
Sun Mar 21	San Diego Half Marathon 5K & Relay	San Diego CA
Sun Mar 21	Seabrook Lucky Trail Marathon 3/4 Marathon Half Marathon & Relay	Seabrook TX
Sun Mar 21	Shamrock Marathon Half Marathon & 8K	Virginia Beach VA
Sun Mar 21	Spring Equinox Half Marathon	Fort Collins CO
Sun Mar 21	Tesoro Viejo Spring Classic Half Marathon 10K & 5K	Madera CA

Saturday, March 27


Sat Mar 27	A Pot of Gold Shared Half Marathon & 5K	Oskaloosa IA
Sat Mar 27	Bridge and Dam Half Marathon & 10K	Lake Ozark MO
Sat Mar 27	Emerald Isle Marathon Half Marathon & 5K	Emerald Isle NC
Sat Mar 27	Garden Spot Village Half Marathon & 10K	New Holland PA
Sat Mar 27	Great Race of Agoura Hills Half Marathon 10K & 5K	Agoura Hills CA
Sat Mar 27	Havasu Half Marathon	Lake Havasu City AZ
Sat Mar 27	Honeywagon Runs Half Marathon & 4-Mile	Everson WA
Sat Mar 27	Irving Marathon Half Marathon 10K & 5K	Irving TX
Sat Mar 27	Lake Minneola Half Marathon 10K & 5K	Clermont FL
Sat Mar 27	Liberty Hospital Half Marathon & 5K	Liberty MO
Sat Mar 27	Neuse River Bridge Run Half Marathon 10K & 5K	New Bern NC
Sat Mar 27	NJ Ultra Trail Festival	Hardwick NJ
Sat Mar 27	Paradise Coast Half Marathon & 5K	Naples FL
Sat Mar 27	Publix Savannah Women's Half Marathon	Savannah GA
Sat Mar 27	Run Sunset Beach Half Marathon & 5K	Sunset Beach NC
Sat Mar 27	Savin Rock Marathon & Half Marathon	West Haven CT
Sat Mar 27	Shamrock Half Marathon & Relay	Manchester NH
Sat Mar 27	Southwest 100M 50M Marathon Half Marathon 10K & 5K	Fort Davis TX
Sat Mar 27	Trail Trashed Half Marathon	Henderson NV
Sat Mar 27	Two Rivers Marathon Half Marathon 10K & 5K	Lackawaxen PA
Sat Mar 27	Yakima River Canyon Marathon & Half Marathon	Selah WA

Sunday, March 28


Sun Mar 28	Cary Greenways Half Marathon 10K & 5K	Cary NC
Sun Mar 28	Duke City Half Marathon	Albuquerque NM
Sun Mar 28	Everett Half Marathon & 10K	Everett WA
Sun Mar 28	Love Run Half Marathon	Philadelphia PA
Sun Mar 28	Two Rivers Marathon Half Marathon 10K & 5K	Lackawaxen PA