December 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 December 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.

Wednesday, December 1 – Friday, December 3


Fri Dec 3	Tinajas Ultra & Trail Races	Bend TX

Saturday, December 4


Sat Dec 4	Alexa's Thunder Run Half Marathon & 10K	Newton NJ
Sat Dec 4	All-Out Fa La La Half Marathon 10K & 5K	Westminster CO
Sat Dec 4	Brazos Bend Marathon Half Marathon 100-Mile & 50-Mile	Needville TX
Sat Dec 4	Calero Trail Run	San Jose CA
Sat Dec 4	Candyland Christmas Half Marathon & 5K	Andalusia AL
Sat Dec 4	Cloudland Canyon Half Marathon & 50-Mile	Rising Fawn GA
Sat Dec 4	Crooked Creek Marathon Half Marathon 50-Mile & 100-Mile	Shepherdsville KY
Sat Dec 4	Death Valley Trail Marathon & Half Marathon	Death Valley NP CA
Sat Dec 4	Fayetteville Half Marathon 10K & 5K	Fayetteville AR
Sat Dec 4	Harmony Half Marathon	Monroe GA
Sat Dec 4	Holiday Half Marathon & 8K Run	Point Clear AL
Sat Dec 4	Holualoa Tucson Marathon Half Marathon & Relay	Tucson AZ
Sat Dec 4	Hope for the Holidays Half Marathon & 5K	Batesville AR
Sat Dec 4	Manhattanite Run Half Marathon	New York NY
Sat Dec 4	Millinocket Marathon & Half Marathon	Millinocket ME
Sat Dec 4	Naples Fall Classic Half Marathon & 5K	Naples FL
Sat Dec 4	OUC Orlando Half Marathon & 5K	Orlando FL
Sat Dec 4	Panama City Beach Marathon Half Marathon & 5K	Panama City Beach FL
Sat Dec 4	Peacock Gap Trail Run	San Rafael CA
Sat Dec 4	Pocahontas Half Marathon 10K & 5K	Chesterfield VA
Sat Dec 4	Race 13.1 Durham Half Marathon 10K & 5K	Durham NC
Sat Dec 4	Raleigh Holiday Half Marathon	Raleigh NC
Sat Dec 4	Redmond Reindeer Romp Half Marathon & 5-Mile	Redmond WA
Sat Dec 4	Rehoboth Beach Seashore Marathon & Half Marathon	Rehoboth Beach DE
Sat Dec 4	Run Laughlin Half Marathon 12K & 5K	Laughlin NV
Sat Dec 4	Run LoCo Marathon Half Marathon & 5K	Loudon TN
Sat Dec 4	St. Jude Memphis Marathon Half Marathon & 5K	Memphis TN
Sat Dec 4	Tinajas Ultra & Trail Races	Bend TX
Sat Dec 4	Wilmington Historic Half Marathon & 5K	Wilmington NC
Sat Dec 4	Winter Trail Fest Half Marathon & 5-Mile Eastside	Brighton MI
Sat Dec 4	YMCA Mistletoe Run Half Marathon & 5K	Winston-Salem NC

Sunday, December 5


Sun Dec 5	Crooked Creek Marathon & Half Marathon	Shepherdsville KY
Sun Dec 5	Dirty South Trail Half Marathon & 10K	Knoxville TN
Sun Dec 5	Elves on Trails Half Marathon & 5K	San Juan Capistrano CA
Sun Dec 5	EOD Warrior Holiday Dash Marathon Half Marathon & 7K	Washington DC
Sun Dec 5	Fredericksburg Blue & Gray Half Marathon & 5K	Fredericksburg VA
Sun Dec 5	Frosty Half Marathon	Raynham MA
Sun Dec 5	Happy Holidays Half MerryThon & 5K	Gloucester MA
Sun Dec 5	Mortgage Network Road Races Half Marathon & 5K	Hardeeville SC
Sun Dec 5	Nittany Valley Half Marathon	State College PA
Sun Dec 5	NYC Holiday Half Marathon 10K & 5K	Brooklyn NY
Sun Dec 5	Oak Ridge to Kingston Express Marathon & Half Marathon	Oak Ridge TN
Sun Dec 5	Phoenix Run Run Rudolph Half Marathon Quarter Marathon & 5K	Peoria AZ
Sun Dec 5	Reindeer Run Half Marathon & 5K	Fernandina Beach FL
Sun Dec 5	Rivanna Greenbelt Marathon & Half Marathon	Charlottesville VA
Sun Dec 5	Rock 'n' Roll San Antonio Marathon & Half Marathon	San Antonio TX
Sun Dec 5	Rock Canyon Half Marathon	Pueblo CO
Sun Dec 5	Run for Tomorrow Half Marathon 10K 5K & Relay	Weston FL
Sun Dec 5	RunnersWorld Tulsa Half and Half Marathon	Tulsa OK
Sun Dec 5	Sandy Claus Marathon Half Marathon & 10K	Ponte Verda FL
Sun Dec 5	Tinajas Ultra & Trail Races	Bend TX
Sun Dec 5	Topo Trail Marathon Half Marathon & Quarter Marathon	Bethel OH

Monday, December 6 – Friday, December 10


Fri Dec 10	Mosaic Trail Run Marathon Half Marathon 50K 15K 10K & 5K	Liberty Hill TX

Saturday, December 11


Sat Dec 11	Baker's Dozen Half Marathon	Hurricane UT
Sat Dec 11	Bulow Woods Trail Half Marathon 50K & 4.25-Mile	Ormond Beach FL
Sat Dec 11	Cajun Country Half Marathon 10K & 5K	Lafayette LA
Sat Dec 11	Christmas in Kentucky Half Marathon & 4-Miler	Harrodsburg KY
Sat Dec 11	Fort Desoto Half Marathon & 5K	St. Petersburg FL
Sat Dec 11	Hark the Herald Angels Half Marathon & 10K	Tiburon CA
Sat Dec 11	Helen Holiday Trail Half Marathon & 10K	Helen GA
Sat Dec 11	Hitchcock Experience Half Marathon 100M 100K & 50M	Honey Creek IA
Sat Dec 11	Holiday Half Marathon	Brooklyn NY
Sat Dec 11	Hoover Dam Marathon Half Marathon 10K & 5K	Boulder City NV
Sat Dec 11	Huntersville Half Marathon & Holiday 5K	Huntersville NC
Sat Dec 11	Kiawah Island Golf Resort Marathon & Half Marathon	Kiawah Island SC
Sat Dec 11	La Jolla Half Marathon & 5K	La Jolla CA
Sat Dec 11	Mosaic Trail Run Marathon Half Marathon 50K 15K 10K & 5K	Liberty Hill TX
Sat Dec 11	NYCRUNS Big Apple Half Marathon	New York NY
Sat Dec 11	Pigeon Forge Half Marathon & 5K	Pigeon Forge TN
Sat Dec 11	Pigtails Run Marathon Half Marathon & 50K	Maple Valley WA
Sat Dec 11	Red Nose Romp Half Marathon & 5K	Indianapolis IN
Sat Dec 11	Runfield Half Marathon	Buda TX
Sat Dec 11	Santa Hustle Arizona Half Marathon & 5K	Glendale AZ
Sat Dec 11	Spicewood Vineyards Half Marathon 10K & 5K	Spicewood TX
Sat Dec 11	Viking Dash Trail Run Half Marathon 10K & 5K – Chicago	Crystal Lake IL
Sat Dec 11	Warrior Creek Half Marathon	Boomer NC

Sunday, December 12


Sun Dec 12	BCS Marathon & Half Marathon	College Station TX
Sun Dec 12	Dallas Marathon Half Marathon & Relay	Dallas TX
Sun Dec 12	Decker Challenge Half Marathon	Austin TX
Sun Dec 12	down2earth Cross Country Run Half Marathon 10K & 5K	Hialeah FL
Sun Dec 12	First Watch Locomotive Half Marathon & 5K	Kennesaw GA
Sun Dec 12	Florida Holiday Halfathon & 10K	Madeira Beach FL
Sun Dec 12	Holiday Half Marathon 10-Mile 10K & 5K	Portland OR
Sun Dec 12	Holiday Running Festival Half Marathon	San Dimas CA
Sun Dec 12	Islamorada Half Marathon & 10K	Islamorada FL
Sun Dec 12	Jacksonville Marathon Half Marathon & 5K	Jacksonville FL
Sun Dec 12	Margaritaville Hollywood Resort Half Marathon	Hollywood FL
Sun Dec 12	Mississippi Gulf Coast Marathon & Half Marathon	Gulfport MS
Sun Dec 12	Napa to Sonoma Wine Country Half Marathon	Sonoma CA
Sun Dec 12	Palm Beaches Marathon Half Marathon & 5K	West Palm Beach FL
Sun Dec 12	Rose Hill Roundup Trail Run	Whitewright TX
Sun Dec 12	Runner's Den Scottsdale Half Marathon & 5K	Scottsdale AZ
Sun Dec 12	Santa Hustle Roseville Half Marathon & 5K	Roseville CA
Sun Dec 12	Santa Hustle Smokies Half Marathon & 5K	Sevierville TN
Sun Dec 12	Santa to the Sea Half Marathon Quarter Marathon 5K & Relay	Oxnard CA
Sun Dec 12	ZombieRunner Quarry Lakes Run Marathon Half Marathon 30K 10K & 5K	Fremont CA

Saturday, December 18


Sat Dec 18	Estrella Mountain Trail Fest Half Marathon 10K & 5K	Goodyear AZ
Sat Dec 18	Irving Frost Half Marathon 10K & 5K	Irving TX
Sat Dec 18	Out with the Old Half Marathon 10K & 5K	Las Vegas NV
Sat Dec 18	Rockin Santa Half Marathon & Sunshine Santa 5K	Knoxville TN
Sat Dec 18	Run for the Ranch Marathon Half Marathon & Relay	Springfield MO
Sat Dec 18	San Diego Holiday Half Marathon	La Jolla CA
Sat Dec 18	Santa's Run Fest Half Marathon 10K & 5K	Winter Haven FL
Sat Dec 18	The Stars at Night Half Marathon	San Antonio TX
Sat Dec 18	Texas Double Marathon & Half Marathon – Day 1	Dallas TX
Sat Dec 18	Tucson Run Run Rudolph Half Marathon Quarter Marathon & 5K	Tucson AZ
Sat Dec 18	Winter Half Marathon Classic	Grenada Lake MS
Sat Dec 18	Woodside Ramble Trail Half Marathon 35K 50K & 10K	Woodside CA
Sat Dec 18	Yukon Do It Winter Edition Marathon Half Marathon 10K 5K & Relay	Port Orchard WA

Sunday, December 19


Sun Dec 19	Fort Lauderdale 13.1 Half Marathon & 10K	Fort Lauderdale FL
Sun Dec 19	Holly Jolly Half Marathon 10K & 5K	Camarillo CA
Sun Dec 19	Jeff Galloway 13.1 Half Marathon	Atlanta GA
Sun Dec 19	The Longest Night Marathon & Half Marathon	Greenville SC
Sun Dec 19	Mount Dora Half Marathon & 5K	Mount Dora FL
Sun Dec 19	Santa Hustle Cedar Point Half Marathon & 5K	Sandusky OH
Sun Dec 19	Santa Hustle Galveston Half Marathon & 5K	Galveston TX
Sun Dec 19	Sarasota West Coast Half Marathon & 5K	Sarasota FL
Sun Dec 19	Texas Double Marathon & Half Marathon – Day 2	Dallas TX
Sun Dec 19	Trail Hog Half Marathon 10K & 5K	Venice FL

Sunday, December 26


Sun Dec 26	Dunedin Half Marathon 10K & 5K	Dunedin FL

Monday, December 27 – Friday, December 31


Fri Dec 31	New Years Double Marathon Half Marathon & 5K	Allen TX