May 2023 Half Marathons

See all May 2023 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, May 1 – Friday, May 5


Fri May 5	Red Island Marathon & Half Marathon	Warwick RI

Saturday, May 6


Sat May 6	500 Festival Mini Marathon & 5k	Indianapolis IN
Sat May 6	Diamond Daze Half Marathon & 5K	Sallisaw OK
Sat May 6	Door County Half Marathon & Nicolet Bay 5k	Fish Creek WI
Sat May 6	Fargo Marathon Half Marathon & 10K	Fargo ND
Sat May 6	Hacienda Hills Run Half Marathon	San Jose CA
Sat May 6	IronHorse Marathon Half Marathon & 5K	Riceville IA
Sat May 6	Old Colony Marathon & Half Marathon	Westfield MA
Sat May 6	Race to End Domestic Violence Half Marathon & 5k	River Falls WI
Sat May 6	Run New Prague Half Marathon 10K 5K & Relay	New Prague MN
Sat May 6		Shelburne Half Marathon 10K & 5K	Shelburne VT
Sat May 6	Shipyard Maine Coast Half & 5k	Wells ME
Sat May 6	Strolling Jim Run 41.2M Marathon Half Marathon & 10k	Wartrace TN
Sat May 6	Unega Mountain Dog Marathon and Half Marathon	Bellevue ID
Sat May 6	Yosemite Half Marathon	Bass Lake CA

Sunday, May 7


Sun May 7	Avenue of the Giants Marathon Half Marathon & 10K	Weott CA
Sun May 7	Bay Bridge Half Marathon	Oakland CA
Sun May 7	Canton Hall of Fame Marathon & Half Marathon Weekend	Canton OH
Sun May 7	Chicagoland Spring Marathon & Half Marathon	Schaumburg IL
Sun May 7	Colorado Marathon Half Marathon 10K & 5K	Fort Collins CO
Sun May 7	Des Moines Women's Half Marathon	Des Moines IA
Sun May 7	Fast Half Marathon	Hamilton MA
Sun May 7	Flying Pig Marathon & Half Marathon	Cincinnati OH
Sun May 7	Frederick Running Festival Half Marathon 5K & Relay	Frederick MD
Sun May 7	Grayson Highlands Half Marathon	Grayson Highlands State Park VA
Sun May 7	Lincoln Marathon & Half Marathon	Lincoln NE
Sun May 7	Margarita Half Marathon	Portsmouth NH
Sun May 7	National Women's Half Marathon & 8K	Washington DC
Sun May 7	Nutmeg State Marathon & Half Marathon	Hartford CT
Sun May 7	NYC Spring Half Marathon	New York NY
Sun May 7	The OC Marathon & Half Marathon Weekend	Costa Mesa CA
Sun May 7	Pittsburgh Marathon & Half Marathon Weekend	Pittsburgh PA
Sun May 7	Providence Marathon Half Marathon & 5k	Providence RI
Sun May 7	Run for the Animals Half Marathon & 10K	Wachapreague VA
Sun May 7	Wildflower Trail Runs Marathon Half Marathon & 7M	Bastrop TX

Monday, May 8 – Friday, May 12


Fri May 12	Maple Leaf Marathon & Half Marathon	Fairlee VT
Fri May 12	Prairie Series – Day 1 Marathon Half Marathon 10k & 5k	Miami OK

Saturday, May 13


Sat May 13	Carbon Valley Half Marathon 5k & 1M	Firestone CO
Sat May 13	Cross Fit PC Half Marathon	Maryville TN
Sat May 13	Dino Half Marathon & 5M	Vernal UT
Sat May 13	Endure 12 Hour 24 Hour & Half Marathon	Divide CO
Sat May 13	Flower Moon 50M Marathon Half Marathon & 5k	Pawhuska OK
Sat May 13	Granite State Marathon & Half Marathon	Nashua NH
Sat May 13	Greenbrier Half Marathon 10k & 5k	White Sulphur Springs WV
Sat May 13	Grizzly Peak 50k Marathon 30k Half Marathon & 10k	Berkeley CA
Sat May 13	Happy Half & 5k	Ellicottville NY
Sat May 13	Ice Age Trail Run 50M 50k & Half Marathon	La Grange WI
Sat May 13	Jump Off Rock Half Marathon & 10K	Hendersonville NC
Sat May 13	Mountains to Mainstreet Half Marathon & 5k	Greenville SC
Sat May 13	New River Marathon Half Marathon & 5k	Todd NC
Sat May 13	Prairie Series – Day 2 Marathon Half Marathon 10k & 5k	St. Joseph MO
Sat May 13	Provo City Half Marathon & 5k	Provo UT
Sat May 13	Race4Warriors Marathon Half Marathon & 5K	Lewes DE
Sat May 13	Ram Party 50M Marathon & Half Marathon	Colorado Springs CO
Sat May 13	Running with the Cows Half Marathon & 5k	Bucyrus KS
Sat May 13	Runtastic Dino Half Marathon & 5M	Vernal UT
Sat May 13	Santa Barbara Wine Country Half Marathon	Solvang CA
Sat May 13	Texas Switchback Marathon Half Marathon 10K & 5K	Johnson City TX
Sat May 13	Thelma and Louise Marathon Half Marathon & 15k	Moab UT
Sat May 13	Trail Run at Sly Park	Pollock Pines CA
Sat May 13	Uff Da Run Half Marathon & 5K	Woodville WI

Sunday, May 14


Sun May 14	Brooklyn Mother's Day Half 10k & 5k	Brooklyn NY
Sun May 14	Great Allegheny Ohiopyle Marathon Race Festival	Ohiopyle PA
Sun May 14	Mother's Day Half Marathon & 5k	Kirkland WA
Sun May 14	Mother's Day Run for the Roses Half Marathon 10k & 5k	Coplay PA
Sun May 14	Pacific Coast Running Festival Half Marathon 10k 5k & 1M	Long Beach WA
Sun May 14	Pine Tree Marathon & Half Marathon	Portland ME
Sun May 14	Prairie Series – Day 3 Marathon Half Marathon 10k & 5k	Hiawatha KS
Sun May 14	Run This Mother Half Marathon & 5K	San Antonio TX
Sun May 14	Vermont Sun Half Marathon 10k & 5k	Lake Dunmore VT

Monday, May 15 – Friday, May 19


Mon May 15	Prairie Series – Day 4 Marathon Half Marathon 10k & 5k	South Sioux City NE
Tue May 16	Prairie Series – Day 5 Marathon Half Marathon 10k & 5k	Sioux City IA
Wed May 17	Prairie Series – Day 6 Marathon Half Marathon 10k & 5k	Baltic SD
Thu May 18	Prairie Series – Day 7 Marathon Half Marathon 10k & 5k	Breckenridge MN
Fri May 19	Prairie Series – Day 8 Marathon Half Marathon 10k & 5k	Wahpeton ND

Saturday, May 20


Sat May 20	Clear Creek Half Marathon	Sevier UT
Sat May 20	Dances With Dirt – Gnaw Bone	Nashville IN
Sat May 20	Fiesta De Mayo Half 10k & 5k	Irving TX
Sat May 20	Front Porch Days Half Marathon 10k 5k 3k & 1k	Kyle TX
Sat May 20	La Jolla Half Marathon & 5k	Del Mar CA
Sat May 20	Madeline Island Marathon & Half Marathon	La Pointe WI
Sat May 20	Martha's Vineyard Marathon Half Marathon & Relay	Oak Bluffs MA
Sat May 20	New Boston Half Marathon	New Boston MA
Sat May 20	Ogden Marathon Half Marathon & 5K	Ogden UT
Sat May 20	RunTheBluegrass Half Marathon 7M 3.7M & 1M	Lexington KY
Sat May 20	San Juan Island Half	Friday Harbor WA
Sat May 20	Soaring Eagle Trail Run Half Marathon 10k & 5k	Sammamish WA
Sat May 20	St. Michaels Running Festival Half Marathon 10k & 5k	Saint Michaels MD
Sat May 20	The Black Fly Half Marathon & 5k	Westmore VT
Sat May 20	Valkyrie Trail Race Marathon Half Marathon 50K & 4-Mile	Colorado Springs CO
Sat May 20	Whitefish Marathon & Half Marathon	Whitefish MT

Sunday, May 21


Sun May 21	Armed Services Marathon Half Marathon & 5k	Grand Haven MI
Sun May 21	Chicago Spring Half Marathon & 10K	Chicago IL
Sun May 21	Cleveland Marathon Half Marathon & 10K	Cleveland OH
Sun May 21	Deer Grove Trail Half Marathon and 10k	Palatine IL
Sun May 21	Denver Colfax Marathon Half Marathon 10M & Relay	Denver CO
Sun May 21	Greater Kansas City Women's Half Marathon & 5k	Lee's Summit MO
Sun May 21	Mountains 2 Beach Marathon Half Marathon & 5k	Ventura CA
Sun May 21	NOCO Half Marathon & 10k	Loveland CO
Sun May 21	Reflection Run Half Marathon 10K & 5K	Washougal WA
Sun May 21	Run on the River Half Marathon 10k & 5k	Astoria OR
Sun May 21	Surfer's Path Half Marathon	Santa Cruz CA

Saturday, May 27


Sat May 27	Armed Forces Half Marathon	Concord CA
Sat May 27	Cassadaga Lake Running Festival Marathon Half Marathon 10k 5k & 1M	Cassadaga NY
Sat May 27	Cedarburg Half Marathon & 5k	Cedarburg WI
Sat May 27	Eastern Oregon Half Marathon 10k & 5k	Spray OR
Sat May 27	Medina Half Marathon & 5K	Medina OH
Sat May 27	Ogden Newspapers Wellness Weekend Half Marathon 5k & 1M	Wheeling WV
Sat May 27	Placerville Path Memorial Day Run Half Marathon 15k 10k & 5k	Placerville CA
Sat May 27	Prince of Wales Island Marathon Half Marathon & Relay	Craig AK
Sat May 27	Stillwater Half Marathon 10k & 5k	Stillwater MN
Sat May 27	Stumptown Trail Runs Half Marathon	Portland OR
Sat May 27	Top of Michigan Festival of Races Half Marathon 10k & 5k	Petoskey MI

Sunday, May 28


Sun May 28	Badass Texas Half Marathon 10k & 5k	Waco TX
Sun May 28	Boston's Run to Remember Half Marathon & 5M	Boston MA
Sun May 28	Buffalo Marathon & Half Marathon	Buffalo NY
Sun May 28	Coeur d'Alene Marathon Half Marathon 10k & 5k	Coeur d'Alene ID
Sun May 28	Hibiscus Half Marathon 15K & 5-Miler	Honolulu HI
Sun May 28	Memorial Day Run Half Marathon 10k & 5k	Lyons WI
Sun May 28	Spirit Trail Run Marathon Half Marathon & 8k	Buena Vista CO

Monday, May 29 – Wednesday, May 31


Mon May 29	Laguna Hills Memorial Day Half Marathon 10k & 5k	Laguna Hills CA
Mon May 29	Quad Cities Running Festival Half Marathon 7M & 5k	Bettendorf IA
Wed May 31	Independence Series – Day 1 Marathon & Half Marathon	Bear DE