October 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 October 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.


Saturday, October 2

Sat Oct 2 Barkcamp Race Trail Marathon Half Marathon 10K & 5K Belmont OH
Sat Oct 2 Bay Ridge Half Marathon New York NY
Sat Oct 2 Bellin Women's Half Marathon Green Bay WI
Sat Oct 2 Big Sur Trail Marathon Half Marathon & 5-Mile Big Sur CA
Sat Oct 2 Blair Regional YMCA Half Marathon 10K & 5K Hollidaysburg PA
Sat Oct 2 Buckeye Trail Blue Blaze Festival Shawnee OH
Sat Oct 2 Cary Greenways Tour Marathon Half Marathon 10K & 5K Cary NC
Sat Oct 2 Castle Rock Trail Festival Castle Rock CO
Sat Oct 2 City of Colleges Half Marathon 10K & 5K Conway AR
Sat Oct 2 Colbert Autumn Classic Half Marathon Colbert WA
Sat Oct 2 Colorado Springs Marathon Half Marathon & 5K Colorado Springs CO
Sat Oct 2 Deep Creek Trail Half Marathon Telluride CO
Sat Oct 2 Disco Run Half Marathon 10K & 5K Fort Worth TX
Sat Oct 2 Draper City Corner Canyon Half Marathon Draper UT
Sat Oct 2 Dugway Trail & Ultra Run Dugway UT
Sat Oct 2 Evansville Half Marathon Evansville IN
Sat Oct 2 Feed the Beast BCTC Summer Race Series Half Marathon Titusville NJ
Sat Oct 2 Fight the Fight Find the Cure Half Marathon 10K & 5K Clarksville TN
Sat Oct 2 Flagstaff Marathon Half Marathon & 10K Flagstaff AZ
Sat Oct 2 Forrest Gump Challenge Half Marathon & 5K Branson MO
Sat Oct 2 Frog Hill Half Marathon Waynesville MO
Sat Oct 2 Girdwood Marathon & Half Marathon Girdwood AK
Sat Oct 2 Glenwood Canyon Shuffle Half Marathon & 5K Glenwood Springs CO
Sat Oct 2 Hamptons Marathon Half Marathon & 5K Southampton NY
Sat Oct 2 Harvest Half Marathon Sioux Center IA
Sat Oct 2 High Bridge Half Marathon & 5K Farmville VA
Sat Oct 2 Indy Half Marathon & 5K Indianapolis IN
Sat Oct 2 Kennebunkport Trust Trail Fest Half Marathon Kennebunkport ME
Sat Oct 2 Leave a Legacy Races Half Marathon & 5K Garden City KS
Sat Oct 2 Leavenworth Oktoberfest Marathon & Half Marathon Leavenworth WA
Sat Oct 2 Legends Never Die Marathon & Half Marathon Ketchum ID
Sat Oct 2 Limestone Capital Half Marathon & 5K Bedford IN
Sat Oct 2 Lover's Leap of Faith Marathon Half Marathon 50K 18M 9M 10K 5K & 2M Kyburz CA
Sat Oct 2 Maple Leaf Walk Run Half Marathon 5-Mile & 5K La Crosse WI
Sat Oct 2 Mighty Niagara Half Marathon & 5K Lewiston NY
Sat Oct 2 New Hampshire Marathon Half Marathon & 10K Bristol NH
Sat Oct 2 New River Marathon Half Marathon & 4-Mile Fleetwood NC
Sat Oct 2 Norfolk Land Trust Half Marathon Norfolk CT
Sat Oct 2 Oktoberfest Half Marathon & 5K Brevard NC
Sat Oct 2 Oktoberfest Half Marathon 15K 10K & 5K Long Beach CA
Sat Oct 2 Potomac River Run Marathon & Half Marathon Washington DC
Sat Oct 2 Prairie State Half Marathon & 10K Long Grove IL
Sat Oct 2 The Race Half Marathon & 5K Atlanta GA
Sat Oct 2 Race 13.1 Raleigh Fall Half Marathon 10K & 5K Raleigh NC
Sat Oct 2 Run for Green Half Marathon 10K & 5K Davidson NC
Sat Oct 2 Run Richmond Half Marathon & 5K Richmond KY
Sat Oct 2 S'more Fun Trail Run Half Marathon 10K & 5K Baraboo WI
Sat Oct 2 Shawnee Marathon & Half Marathon Harrisburg IL
Sat Oct 2 Shawnee Trail Half Marathon & 10K West Portsmouth OH
Sat Oct 2 Sheshequin Path Half Marathon Sayre PA
Sat Oct 2 Sleeping Bear Marathon Half Marathon & 5K Empire MI
Sat Oct 2 Snack Town RunFest Half Marathon & 5K Hanover PA
Sat Oct 2 Thru the Leaves Half Marathon Rochester Hills MI
Sat Oct 2 True to the Brew Trail Half Marathon Spartanburg SC
Sat Oct 2 Twisted Crawdad Trail Series Chadron NE
Sat Oct 2 Wonderful Water Half Marathon & 5K Stevens Point WI
Sat Oct 2 Wurst Race Half Marathon & 5K Muenster TX

Sunday, October 3

Sun Oct 3 Adirondack Marathon & Half Marathon Schroon Lake NY
Sun Oct 3 Bear Trail Half Marathon & 5K Bear DE
Sun Oct 3 BHM26.2 Marathon & Half Marathon Birmingham AL
Sun Oct 3 BRRC Grand Prix Series Half Marathon Sparks MD
Sun Oct 3 California Classic Half Marathon 10K & 5K Fresno CA
Sun Oct 3 Chestertown Challenge Half Marathon & 5K Chestertown MD
Sun Oct 3 Chris Jarvis Autumn River Run Marathon Half Marathon & 5K North Platte NE
Sun Oct 3 Cops vs COVID Run Half Marathon & 5K Modesto CA
Sun Oct 3 Covenant Health Knoxville Marathon & Half Marathon Knoxville TN
Sun Oct 3 Craft Beer Half Marathon & 5-Mile Charlotte NC
Sun Oct 3 Crawlin' Crab Half Marathon & 5K Hampton VA
Sun Oct 3 De Soto Half Marathon & 5K De Soto KS
Sun Oct 3 Fort Hill Brewery Half Marathon & 5K Easthampton MA
Sun Oct 3 Gorham Savings Bank Maine Marathon Half Marathon & Relay Portland ME
Sun Oct 3 Great Balloon Chase Half Marathon 10K & 5K Albuquerque NM
Sun Oct 3 Greenbrier River Trail Marathon & Half Marathon Cass WV
Sun Oct 3 Greenway Marathon & Half Marathon Nashville TN
Sun Oct 3 Healing Half Marathon 10K 5K & 20-Mile White Plains NY
Sun Oct 3 Heart of Cool Trail Run Half Marathon 10K & 5K Cool CA
Sun Oct 3 Hokie Half Marathon & 5K Blacksburg VA
Sun Oct 3 Jersey City Fall Half Marathon 10K & 5K Jersey City NJ
Sun Oct 3 Jersey Shore Half Marathon Fort Hancock NJ
Sun Oct 3 Kinzua Valley Half Marathon Westline PA
Sun Oct 3 Leaf Peepers Half Marathon & 5K Waterbury VT
Sun Oct 3 Lions Turtle Bay Run Three Bridges Half Marathon Redding CA
Sun Oct 3 Long View Marathon & Half Marathon Fort Collins CO
Sun Oct 3 Mo' Cowbell Marathon Half Marathon & Relay St. Charles MO
Sun Oct 3 Mud Mountain Dam Marathon Half Marathon 5K & Relay Enumclaw WA
Sun Oct 3 Napa Half Marathon & Quarter Marathon Napa CA
Sun Oct 3 Nebraska Marathon Half Marathon & 5K Omaha NE
Sun Oct 3 Oklahoma City Memorial Marathon & Half Marathon Oklahoma City OK
Sun Oct 3 Omaha Women's Half Marathon & 5K Omaha NE
Sun Oct 3 Palace City Kiwanis Half Marathon Mitchell SD
Sun Oct 3 Portland Marathon & Half Marathon Portland OR
Sun Oct 3 'Rad Dirt Fest Half Marathon & Ultras Trinidad CO
Sun Oct 3 Rails to Trails Marathon Half Marathon & 5K Norwalk WI
Sun Oct 3 Red Carpet Run Half Marathon 10K & 5K Cocoa Village FL
Sun Oct 3 Reno River Run Half Marathon 10K & 5K Reno NV
Sun Oct 3 Rim to Royal Gorge Half Marathon Cañon City CO
Sun Oct 3 Rivanna Greenbelt Marathon & Half Marathon Charlottesville VA
Sun Oct 3 Rock 'n' Roll San Jose Half Marathon & 10K San Jose CA
Sun Oct 3 Run Crazy Horse Marathon Half Marathon & Relay Crazy Horse SD
Sun Oct 3 Smuttynose Rockfest Half Marathon Hampton NH
Sun Oct 3 SoNo Half Marathon & 5K Norwalk CT
Sun Oct 3 Steel Rail Half Marathon & 8K Lanesborough MA
Sun Oct 3 Three Creeks Half Marathon 10K & 5K Groveport OH
Sun Oct 3 Treetown Tussle Half Marathon Ann Arbor MI
Sun Oct 3 Tuck Fest Trail Half Marathon Charlotte NC
Sun Oct 3 Twin Lights Half Marathon Gloucester MA
Sun Oct 3 Urban Cow Half Marathon Sacramento CA
Sun Oct 3 Whitefish Trail Legacy Run Half Marathon 10K & 5K Whitefish MT
Sun Oct 3 Wineglass Marathon & Half Marathon Corning NY

Monday, October 4 – Friday, October 8

Saturday, October 9

Sat Oct 9 Antelope Island Marathon Half Marathon 10K & 5K Syracuse UT
Sat Oct 9 Arches Half Marathon Moab UT
Sat Oct 9 Arkansas Marathon Bearcat Half Marathon 10K & 5K Booneville AR
Sat Oct 9 Auburn Half Marathon 12K & 5K Auburn CA
Sat Oct 9 Baltimore Running Festival Marathon Half Marathon 10K & 5K Baltimore MD
Sat Oct 9 Battle of Hillotes Half Marathon 10K & 5K Helotes TX
Sat Oct 9 Bemidji Blue Ox Marathon Half Marathon & 26K Bemidji MN
Sat Oct 9 Bethel Half Marathon & 5K Waynesville NC
Sat Oct 9 Black Bear Half Marathon Hendersonville NC
Sat Oct 9 Brazen Goonies Half Marathon 10K & 5K Vacaville CA
Sat Oct 9 Breckenridge Marathon Half Marathon & 10K Breckenridge CO
Sat Oct 9 Canyon Half Marathon Fort Payne AL
Sat Oct 9 Corkscrew Half Marathon Tyler TX
Sat Oct 9 Deep Hollow Trail Half Marathon & 5K Lynchburg VA
Sat Oct 9 Dimple Dell Half Marathon Sandy UT
Sat Oct 9 DNF (Do Not Fall) Trail Half Marathon & Quarter Marathon Indianapolis IN
Sat Oct 9 The Driftless Half Marathon Lansing IA
Sat Oct 9 Escalante Canyons Marathon Half Marathon & 5K Escalante UT
Sat Oct 9 Fidalgo Marathon Half Marathon & 5-Mile Anacortes WA
Sat Oct 9 Finger Lakes Half Marathon & 5K Seneca Falls NY
Sat Oct 9 Gandy Dancer Trail Marathon & Half Marathon Luck WI
Sat Oct 9 Georgetown Half Marathon Washington DC
Sat Oct 9 Grand Valley Half Marathon 10K & 5K Palisade CO
Sat Oct 9 Hartford Marathon Half Marathon & 5K Hartford CT
Sat Oct 9 Haunted Half Marathon Abilene TX
Sat Oct 9 HooDoo Half Marathon Fairbanks AK
Sat Oct 9 Hoosier Half Marathon & 5K Bloomington IN
Sat Oct 9 Hot Cider Hustle Lansing Half Marathon & 5K Lansing MI
Sat Oct 9 Kings Mountain Marathon & Half Marathon Clover SC
Sat Oct 9 Lake Padden Trail Half Marathon & 5K Bellingham WA
Sat Oct 9 Lake Placid Classic Half Marathon & 10K Lake Placid NY
Sat Oct 9 Lake Powell Half Marathon Page AZ
Sat Oct 9 Lake Shore Lap Half Marathon 10K & 5K Au Gres MI
Sat Oct 9 Lane Walker Foundation Race Half Marathon 10K & 5K Alma MI
Sat Oct 9 LewisGale Salem Half Marathon 8K & Kids Race Salem VA
Sat Oct 9 Little Apple Marathon Half Marathon 5K & Relay Manhattan KS
Sat Oct 9 Long Hunter Trail Marathon Half Marathon & 50K Hermitage TN
Sat Oct 9 Lowcountry Trail Half Marathon Johns Island SC
Sat Oct 9 McKinney Half Marathon & 5K McKinney TX
Sat Oct 9 Mo Marathon & Half Marathon Perrysville OH
Sat Oct 9 Mo' Bell Marathon Half Marathon 100M 100K 75M 50M 50K 10K & 5K Burns TX
Sat Oct 9 Murfreesboro Half Marathon Murfreesboro TN
Sat Oct 9 Punxsutawney Mahoning Shadow Shuffle Half Marathon 10K & 5K Punxsutawney PA
Sat Oct 9 Puyallup Valley Half Marathon & 10K Puyallup WA
Sat Oct 9 Race the Reserve Half Marathon 10K & 5K Coupeville WA
Sat Oct 9 Rancho Canada Del Oro Trail Challenge Morgan Hill CA
Sat Oct 9 Rockaway Half Marathon Rockaway Park NY
Sat Oct 9 Run Bentonville Half Marathon & 5K Bentonville AR
Sat Oct 9 Run Conch Republic Half Marathon & 10K Key West FL
Sat Oct 9 Run Holden Beach Half Marathon & 5K Supply NC
Sat Oct 9 Run the Mill Half Marathon & 10K Middletown OH
Sat Oct 9 Run the Rail Marathon & Half Marathon New Boston TX
Sat Oct 9 Run United Half Marathon & 5K Aiken SC
Sat Oct 9 Sauk Valley Apple Cider Run Half Marathon 10K & 5K Rock Falls IL
Sat Oct 9 Savannah Women's Half Marathon Savannah GA
Sat Oct 9 Scenic Byway Half Marathon Belle Plaine MN
Sat Oct 9 Sparta Half Marathon & 5K Sparta WI
Sat Oct 9 Strata Stride Half Marathon Amarillo TX
Sat Oct 9 Strouds Run Trail Half Marathon & 10K Athens OH
Sat Oct 9 Three Eagle Half Marathon & 5K Eagle River WI
Sat Oct 9 The Trailway Trail Marathon Half Marathon 10K & 5K Somerville TX
Sat Oct 9 Under the Oaks Half Marathon 10K & 5K Jekyll Island GA
Sat Oct 9 Warren YMCA SuperKwik Challenge Half Marathon Warren PA
Sat Oct 9 Whiskey Row Marathon Half Marathon 10K & 5K Prescott AZ
Sat Oct 9 WhistleStop Marathon & Half Marathon Ashland WI
Sat Oct 9 YMCA Sandbar Half Marathon & 5k Englewood FL
Sat Oct 9 Zachariah's Acres Fall Run Walk & Roll Half Marathon & 5K Oconomowoc WI
Sat Oct 9 Zombie Half Marathon Anchorage AK

Sunday, October 10

Sun Oct 10 Belmar Bridge Half Marathon Franklin PA
Sun Oct 10 Block Island Half Marathon Block Island RI
Sun Oct 10 Boulderthon Marathon & Half Marathon Boulder CO
Sun Oct 10 Brooklynite Half Marathon & 10K New York NY
Sun Oct 10 Ceasar Creek Trail Half Marathon & 10K Waynesville OH
Sun Oct 10 Charlottesville Fall Classic Half Marathon & 10K Charlottesville VA
Sun Oct 10 Cranky Crab Half Marathon 10K & 5K Seekonk MA
Sun Oct 10 Dayton River Corridor Half Marathon & 5K Dayton OH
Sun Oct 10 Donot Stop Half Marathon 10K & 5K – Oklahoma City Edmond OK
Sun Oct 10 Fall Foliage Half Marathon & 5K Rhinebeck NY
Sun Oct 10 Girlfriends Run for a Cure Half Marathon Vancouver WA
Sun Oct 10 GRIT Running Festival for Mental Health Awareness East Longmeadow MA
Sun Oct 10 Heavenly Half Marathon Auberry CA
Sun Oct 10 Hot Cider Hustle Erie Half Marathon & 5K Erie PA
Sun Oct 10 Hot Cider Hustle Omaha Half Marathon & 5K Omaha NE
Sun Oct 10 Humboldt Redwoods Half Marathon & 5K Weott CA
Sun Oct 10 Just a Short Run Half Marathon 30K 8.1-Mile & 5K Allison Park PA
Sun Oct 10 Long Beach Marathon & Half Marathon Long Beach CA
Sun Oct 10 Main Street of Hunterdon Half Marathon 5K & Relay Clinton NJ
Sun Oct 10 Midlands Half Marathon Wedgefield SC
Sun Oct 10 Mo Half Marathon Perrysville OH
Sun Oct 10 Mo' Bell Half Marathon 10K & 5K Burns TX
Sun Oct 10 Mohawk Hudson River Marathon & Half Marathon Albany NY
Sun Oct 10 Morgantown Marathon Half Marathon & 8K Morgantown WV
Sun Oct 10 Nantucket Half Marathon Nantucket MA
Sun Oct 10 New England Harvest Half Marathon Swansea MA
Sun Oct 10 Newport Marathon & Half Marathon Newport RI
Sun Oct 10 Northshore Half Marathon & 10-Mile Mandeville LA
Sun Oct 10 Paine to Pain Trail Half Marathon New Rochelle NY
Sun Oct 10 Pensacola Half Marathon & 5K Pensacola FL
Sun Oct 10 Prairie Fire Fall Marathon Half Marathon & 5K Wichita KS
Sun Oct 10 Rock Hall Half Marathon 10K & 5K Cleveland OH
Sun Oct 10 Rock the River: Palisades Half Marathon Fort Lee NJ
Sun Oct 10 SBC Trailfest Half Marathon 10K & 5K Highlandville MO
Sun Oct 10 Spokane Marathon Half Marathon 10K & Relay Spokane WA
Sun Oct 10 Springfield Marathon Half Marathon & Quarter Marathon Springfield IL
Sun Oct 10 Sun City Half Marathon & 5K Yakima WA
Sun Oct 10 Towpath Marathon Half Marathon & 10K Valley View OH
Sun Oct 10 West Virginia Trilogy Half Marathon & 5K Circleville WV
Sun Oct 10 Whiskeydaddle Races Marathon Half Marathon & Relay Peoria IL
Sun Oct 10 Windsor Marathon Half Marathon & Heavy 10K Windsor CO


Monday, October 11 – Friday, October 15

Saturday, October 16

Sat Oct 16 Appalachian Series Marathon Half Marathon 10K & 5K – Day 1 Bluefield WV
Sat Oct 16 Aspen Valley Marathon Half Marathon & 5K Aspen CO
Sat Oct 16 Buffalo Creek Half Marathon Cabot PA
Sat Oct 16 Buffalo Stampede Half Marathon & 5K Bryan TX
Sat Oct 16 Cedro Peak Half Marathon 50K & 10K Tijeras NM
Sat Oct 16 Colfax Marathon Half Marathon 10-Mile & Relay Denver CO
Sat Oct 16 Country Sole Half Marathon 10K & 5K Chicago IL
Sat Oct 16 Danville Half Marathon Danville VA
Sat Oct 16 Energy City Half Marathon 10K & 5K Midland TX
Sat Oct 16 F*L*A*T*S Trail Half Marathon Kirksville MO
Sat Oct 16 Flatlander Half Marathon & 5K Great Bend KS
Sat Oct 16 Freedom's Run Marathon Half Marathon 10K & 5K Shepherdstown WV
Sat Oct 16 Game On! Run Hutchinson Island Half Marathon & 10K Fort Pierce FL
Sat Oct 16 Gear Western Country Half Marathon & 5K Long Lake MN
Sat Oct 16 Hayden Lake Marathon Half Marathon & Quarter Marathon Hayden ID
Sat Oct 16 Hazleton Town and Trail Half Marathon 10K & 5K Hazleton PA
Sat Oct 16 Hoosier Trail Half Marathon & 10K Bedford IN
Sat Oct 16 Hot Cider Hustle Twin Cities Half Marathon & 5K Bloomington MN
Sat Oct 16 Huntsville Half Marathon Quarter Marathon & 5K Huntsville TX
Sat Oct 16 Jack and Jill's Downhill Marathon & Half Marathon Boise ID
Sat Oct 16 Jacksonville USO Armed Forces Half Marathon & 5K Jacksonville FL
Sat Oct 16 John Wayne Grit Series – Lone Pine Half Marathon & 10K Lone Pine CA
Sat Oct 16 Kansas City Marathon Half Marathon 10K & 5K Kansas City MO
Sat Oct 16 KY History Half Marathon 10K & 5K Frankfort KY
Sat Oct 16 Lewis-Clark Half Marathon & 5K Clarkston WA
Sat Oct 16 Mancos Cowboy Half Marathon & 5K Mancos CO
Sat Oct 16 Mankato Marathon Half Marathon 10K & 5K Mankato MN
Sat Oct 16 National Sweetest Day Half Marathon 10K & 5K Nashotah WI
Sat Oct 16 NYCRUNS Prospect Park Marathon Half Marathon & 50k New York NY
Sat Oct 16 Oahe YMCA Half Marathon Pierre SD
Sat Oct 16 Octoberfest Half Marathon 10K & 5K Peru NY
Sat Oct 16 Oktoberfest Trail Run Festival Marathon Half Marathon 50K 10K & 5K Farmersville TX
Sat Oct 16 Paris Mountain Half Marathon Greenville SC
Sat Oct 16 Philadelphia Trail Marathon & Half Marathon Philadelphia PA
Sat Oct 16 Poulsbo Half Marathon & 10K Poulsbo WA
Sat Oct 16 Providence Rogue Run Marathon Half Marathon & 10K Medford OR
Sat Oct 16 Pumpkin Harvest Half Marathon Bethel ME
Sat Oct 16 Pumpkinpalooza Trail Marathon Half Marathon 10K & 5K College Station TX
Sat Oct 16 Purdue Boilermaker Half Marathon & 5K West Lafayette IN
Sat Oct 16 Racin' for a Cure Half Marathon 10K & 5K Fairfax Station VA
Sat Oct 16 Run the Valley Half Marathon & 8K Badin NC
Sat Oct 16 Ryther Marathon to Hope Half Marathon 10K & 5K Seattle WA
Sat Oct 16 Spacerock Trail Race Half Marathon 10K & 5K Agua Dulce CA
Sat Oct 16 Tackle the Trail Marathon & Half Marathon Putnam CT
Sat Oct 16 Trapp Lodge Mountain Marathon & Half Marathon Stowe VT
Sat Oct 16 Twilight Red Rock Half Marathon 10K & 5K Las Vegas NV
Sat Oct 16 Upper Cumberland Haunted Half Marathon Cookeville TN
Sat Oct 16 Urban Bourbon Half Marathon Louisville KY

Sunday, October 17

Sun Oct 17 Appalachian Series Marathon Half Marathon 10K & 5K – Day 2 Bluefield VA
Sun Oct 17 Around Cape Ann Half Marathon Gloucester MA
Sun Oct 17 Atlantic City Marathon & Half Marathon Atlantic City NJ
Sun Oct 17 Baystate Marathon & Half Marathon Lowell MA
Sun Oct 17 BCS Oktoberfest Half Marathon & 10K College Station TX
Sun Oct 17 Best Damn Race Half Marathon Safety Harbor FL
Sun Oct 17 Bull City Race Fest Half Marathon & 5-Mile Durham NC
Sun Oct 17 Columbus Marathon & Half Marathon Columbus OH
Sun Oct 17 Crowell Hilaka Trail Run Half Marathon & 10K Richfield OH
Sun Oct 17 Des Plaines River Trail Marathon Half Marathon & 50-Mile Lincolnshire IL
Sun Oct 17 Detroit Free Press Marathon Half Marathons & 5K Detroit MI
Sun Oct 17 Duke City Half Marathon Albuquerque NM
Sun Oct 17 Fall Classic Trail Half Marathon & Color Run 5K Charleston WV
Sun Oct 17 Folsom Blues Breakout Half Marathon 5K & Relay Folsom CA
Sun Oct 17 GO! St. Louis Halloween Half Marathon St. Louis MO
Sun Oct 17 Grand Rapids Marathon Half Marathon & Relay Grand Rapids MI
Sun Oct 17 Great New York State Marathon & Half Marathon Syracuse NY
Sun Oct 17 Green Mountain Marathon & Half Marathon South Hero VT
Sun Oct 17 Happy Valley Half Marathon Northampton MA
Sun Oct 17 Heart and Sole Half Marathon & 5K – Babcock Ranch Punta Gorda FL
Sun Oct 17 Hot Cider Hustle Green Bay Half Marathon & 5K Green Bay WI
Sun Oct 17 IMT Des Moines Marathon Half Marathon & 5K Des Moines IA
Sun Oct 17 Mount Desert Island Marathon Half Marathon & Relay Bar Harbor ME
Sun Oct 17 Myrtle Beach Mini Marathon Myrtle Beach SC
Sun Oct 17 Naperville Half Marathon Naperville IL
Sun Oct 17 Never Say Never Half Marathon Tieton WA
Sun Oct 17 New England Half Marathon Concord NH
Sun Oct 17 Pamby Ridgefield Half Marathon Ridgefield CT
Sun Oct 17 Reading Hospital Road Run Half Marathon 5K & 1-Mile Reading PA
Sun Oct 17 Run Rocklin Half Marathon 12K & 5K Rocklin CA
Sun Oct 17 Running of the Elk Half Marathon 10K & 5K Elk Grove CA
Sun Oct 17 Seven Bridges Marathon Four Bridges Half Marathon & 5K Chattanooga TN
Sun Oct 17 Snohomish River Run Marathon & Half Marathon Snohomish WA
Sun Oct 17 St. Luke's Half Marathon & 5K Allentown PA
Sun Oct 17 Stub Stewart Trail Challenge Half Marathon & Quarter Marathon Buxton OR
Sun Oct 17 Tucson Wicked Half Marathon 10K & 5K Tucson AZ
Sun Oct 17 Wade Mountain Marathon Half Marathon & 10K Huntsville AL
Sun Oct 17 Western Maryland Rail Trail Marathon & Half Marathon Hancock MD
Sun Oct 17 Wicked Triple Fun Run Half Marathon Fort Walton Beach FL
Sun Oct 17 Wild Duluth Harder 'n Heck Half Marathon & Terribly Tough 10K Duluth MN
Sun Oct 17 Zionsville Half Marathon & 5K Zionsville IN

Monday, October 18 – Friday, October 22

Saturday, October 23

Sat Oct 23 Amelia B. Wilson LBL Run Half Marathon & 10K Grand Rivers KY
Sat Oct 23 California Gold Rush Trail Run Half Marathon 15K 10K & 5K Coloma CA
Sat Oct 23 Cannonball Run Marathon & Half Marathon Greensboro NC
Sat Oct 23 Carrabba's Classic Half Marathon 5K & Relay San Antonio TX
Sat Oct 23 CATHalf Marathon Pounding Creek Marathon & Trail 10K Charlottesville VA
Sat Oct 23 Chippewa Creek Challenge Half Marathon Brecksville OH
Sat Oct 23 Citizens Run Against Cancer Half Marathon & 5K Victoria TX
Sat Oct 23 Cleveland Half Marathon Cleveland TN
Sat Oct 23 The Colony Half Marathon The Colony TX
Sat Oct 23 Cossatot River Trail Run Half Marathon Wickes AR
Sat Oct 23 Creep 'n' Crawl Half Marathon & 5K Little Rock AR
Sat Oct 23 Dark and Dirty Night Race Half Marathon & 10K Griffin GA
Sat Oct 23 Death Valley Half Marathon & 10K Death Valley CA
Sat Oct 23 Diablo Summit Stomp Half Marathon 30K 10K & 5K Walnut Creek CA
Sat Oct 23 End of the Road Half Marathon & 4-Mile Waterfall PA
Sat Oct 23 EVL Halloween Half Marathon Ellicottville NY
Sat Oct 23 Famously Hot Pink Half Marathon & 5K Columbia SC
Sat Oct 23 Great Turtle Trail Run Half Marathon & 5.7-Mile Mackinac Island MI
Sat Oct 23 Heroes Run Half Marathon & 5K Bossier City LA
Sat Oct 23 High Country Half Marathon Boone NC
Sat Oct 23 Hot Cider Hustle Half Marathon & 5K – Rochester Rochester MN
Sat Oct 23 Hot Cider Hustle Half Marathon & 5K – Shorewood Milwaukee WI
Sat Oct 23 Joe English Twilight Challenge Marathon Half Marathon & 6-Hour Ultra Amherst NH
Sat Oct 23 Kansas Rails-to-Trails Extravaganza Ottawa KS
Sat Oct 23 Kentucky General Butler Trail Half Marathon & 10K Carrollton KY
Sat Oct 23 KQR Run for Good Half Marathon 10K & 5K Roscoe IL
Sat Oct 23 Lighthouse Loop Half Marathon & 5K Port Orange FL
Sat Oct 23 Marathon 2 Marathon Marathon Half Marathon 10K & 5K Marathon TX
Sat Oct 23 Miles & Margaritas Trail Run Half Marathon 10K & 5K Fort Worth TX
Sat Oct 23 Monkey Bar Marathon & Half Marathon Maineville OH
Sat Oct 23 Monte Vino Races at 12 Ridges Vineyard Vesuvius VA
Sat Oct 23 Napa Wine Country Marathon Half Marathon & 10K Calistoga CA
Sat Oct 23 NYCRUNS Narrows Half Marathon New York NY
Sat Oct 23 Oregon Trail Run of Nebraska Marathon & Half Marathon Hebron NE
Sat Oct 23 Pinkathon Challenge for Breast Cancer San Francisco CA
Sat Oct 23 Pocahontas Trail Festival Marathon Half Marathon 10K & Relay Chesterfield VA
Sat Oct 23 Porters HOWLoween Half Marathon 10K & 5K Draper UT
Sat Oct 23 Priebe Strong 1062 Half Marathon 10K & 5K Republic MO
Sat Oct 23 Publix Half Marathon & 5K Venice FL
Sat Oct 23 River Valley Run Trail Half Marathon Manchester MD
Sat Oct 23 Rootrock Trail Run Half Marathon 10K & 5K Chapel Hill NC
Sat Oct 23 Run Ocean Isle Beach Half Marathon 5K & 1-Mile Ocean Isle Beach NC
Sat Oct 23 Run to the Center of the World Half Marathon 10K & 5K New Troy MI
Sat Oct 23 Salt Lake City Haunted Half & 5K Salt Lake City UT
Sat Oct 23 Salty Half Marathon Seattle WA
Sat Oct 23 Santa Barbara Wine Country Half Marathon Solvang CA
Sat Oct 23 Sly Fox Half Madness 10K & 5K St. Charles IL
Sat Oct 23 Tecumseh Trail Challenge Marathon Half Marathon 50K & Quarter Marathon Bloomington IN
Sat Oct 23 Tilden Trail Half Marathon & 10K Orinda CA
Sat Oct 23 Trail Marathon Half Marathon 50k & 5-Mile Pinckney MI
Sat Oct 23 Yippee-Ki-Yay Half Marathon 50K & 5-Mile Council Bluffs IA

Sunday, October 24

Sun Oct 24 Alpharetta Women's Half Marathon Alpharetta GA
Sun Oct 24 Ann Arbor Marathon Half Marathon 10K 5K & Relay Ann Arbor MI
Sun Oct 24 AthHalf Half Marathon Athens GA
Sun Oct 24 Boise Marathon Half Marathon 10K & 5K Boise ID
Sun Oct 24 Bridge-to-Bridge Half Marathon & 5K Ashtabula OH
Sun Oct 24 Chandler #AZ48 Half Marathon & 5K Chandler AZ
Sun Oct 24 Cleveland Marathon & Half Marathon Cleveland OH
Sun Oct 24 Colorado Marathon Half Marathon 10K & 5K Fort Collins CO
Sun Oct 24 Columbia River Gorge Marathon & Half Marathon Hood River OR
Sun Oct 24 Dallas Spartan Trail Half Marathon 50K & 10K Dallas TX
Sun Oct 24 Dam Site Run Half Marathon Hudson IL
Sun Oct 24 End of the Road Marathon & Half Marathon Waterfall PA
Sun Oct 24 Fast Half Marathon South Hamilton MA
Sun Oct 24 GFNY Florida Marathon & Half Marathon Sebring FL
Sun Oct 24 Good Life Halfsy Lincoln NE
Sun Oct 24 Haunted Half Austin 5K & Kids' Run Pflugerville TX
Sun Oct 24 Haunted Hustle Half Marathon Middleton WI
Sun Oct 24 Heritage Trail Run Half Marathon & 50K Adrian MI
Sun Oct 24 Hot Cider Hustle Cedar Rapids Half Marathon & 5K Cedar Rapids IA
Sun Oct 24 John Bryan Trail Half Marathon 10K & 5K Yellow Springs OH
Sun Oct 24 Las Vegas Women's Half Marathon Henderson NV
Sun Oct 24 Loco Marathon & Half Marathon Newmarket NH
Sun Oct 24 Mission Inn Run Half Marathon 10K & 5K Riverside CA
Sun Oct 24 Newburyport Half Marathon & Relay Newburyport MA
Sun Oct 24 Ocean State Rhode Race Marathon Half Marathon & 5K Narragansett RI
Sun Oct 24 Pocono Half Marathon & Fall Running Spectacular Greentown PA
Sun Oct 24 Reservoir Run Half Marathon & 5K Weston CT
Sun Oct 24 Rock 'n' Roll San Diego Marathon & Half Marathon San Diego CA
Sun Oct 24 Run for the Schools Half Marathon 10K & 5K Iowa City IA
Sun Oct 24 Sandhill Crane All Trail Half Marathon 10K & 5K Vandalia MI
Sun Oct 24 Sri Chinmoy Half Marathon Congers NY
Sun Oct 24 Suffolk County Marathon Half Marathon 10K & 5K Babylon NY
Sun Oct 24 Those Damned Hills Half Marathon 10K & 5K Lorton VA
Sun Oct 24 TMC Get Moving Tucson Half Marathon 5K & 1-Mile Tucson AZ
Sun Oct 24 Wallis Sands Half Marathon Rye NH
Sun Oct 24 Westy Half & 5K Westminster CO
Sun Oct 24 Youngstown Marathon Half Marathon & 5K Youngstown OH
Sun Oct 24 ZOOMA Amelia Island Half Marathon Amelia Island FL

Monday, October 25 – Friday, October 29

Saturday, October 30

Sat Oct 30 Bear Creek Run Half Marathon Columbia MO
Sat Oct 30 Boston Mini Marathon & 5K Boston GA
Sat Oct 30 Cape Cod Marathon Half Marathon & Relay Falmouth MA
Sat Oct 30 Castle to River Run Half Marathon & 5K Garrison NY
Sat Oct 30 Chessie Trail Marathon Half Marathon & 5K Lexington VA
Sat Oct 30 City Island Haunted House Half Marathon & 5K Harrisburg PA
Sat Oct 30 Day of the Dead Series Marathon Half Marathon 50K 10K & 5K – Day 3 Las Cruces NM
Sat Oct 30 Door County Half Marathon & 5K Fish Creek WI
Sat Oct 30 Emerald Isle Marathon Half Marathon & 5K Emerald Isle NC
Sat Oct 30 Fall Into Winter Half Marathon & 10K Granville OH
Sat Oct 30 Franconia Notch Half Marathon Franconia NH
Sat Oct 30 Galena River Fall Half Marathon & 8K Galena IL
Sat Oct 30 Halloween Run Michigan Cheap Half Marathon 10K & 5K – Saranac Saranac MI
Sat Oct 30 Hallowrock Half Marathon 10K & 5K Las Vegas NV
Sat Oct 30 Happy Girls Run Sisters Half Marathon & 5K Sisters OR
Sat Oct 30 Harvest Half Marathon & 5K Brentwood TN
Sat Oct 30 Haunted Half Marathon & 5K – Provo Provo UT
Sat Oct 30 Haunted Half Marathon 10K & 5K Hurricane WV
Sat Oct 30 Haunted Hilly Half Marathon Terrible 10K & Frightening 5K Bristol IN
Sat Oct 30 Haunted Hustle Half Marathon 10K & 5K Artesia NM
Sat Oct 30 Heart and Sole Half Marathon 10K & 5K Wooster OH
Sat Oct 30 Hero Half Marathon & Relay Fayetteville AR
Sat Oct 30 Hiawatha Trail Races Marathon Half Marathon & Quarter Marathon Newbury Park CA
Sat Oct 30 Hill Country Halloween Half Marathon Cedar Park TX
Sat Oct 30 Hueston Woods Half Marathon & 10K College Corner OH
Sat Oct 30 Innsbrook Half Marathon Innsbrook MO
Sat Oct 30 Kingdom Challenge Half Marathon & 5K Lyndonville VT
Sat Oct 30 Kooky Not Spooky Half Marathon 10K & 5K Chattanooga TN
Sat Oct 30 Lake Tahoe Marathon: Carnelian Bay Half Marathon South Lake Tahoe CA
Sat Oct 30 Miami Beach Halloween Half Marathon Miami Beach FL
Sat Oct 30 Michigan Monster Dash Half Marathon 10K & 5K Milford MI
Sat Oct 30 Oakland Hills Trail Run Half Marathon 35K & 10K Oakland CA
Sat Oct 30 Queens NYC Halloween Half Marathon 10K & 5K New York NY
Sat Oct 30 Riverview Ramble Half Marathon 10K & 5K Mount Carmel IL
Sat Oct 30 Run for the Nurses Half Marathon & 5K Tifton GA
Sat Oct 30 Run the Bluegrass Fall Royale Half Marathon & 10K Lexington KY
Sat Oct 30 Run the Rails Half Marathon 10K & 5K Union City TN
Sat Oct 30 Savin Rock Marathon & Half Marathon West Haven CT
Sat Oct 30 Schaeffer Half Marathon & 10K Trail Run Germantown MD
Sat Oct 30 Semper Fi Half Marathon & 5K Washington DC
Sat Oct 30 Silver Comet Marathon & Half Marathon Mableton GA
Sat Oct 30 Spinx Run Fest Marathon Half Marathon 10K & 5K Greenville SC
Sat Oct 30 Spooky Sprint Half Marathon 10K & 5K Lees Summit MO
Sat Oct 30 Stephensville Lions Spooktacular Half Marathon 10K & 5K Stephensville TX
Sat Oct 30 Stinson Beach Marathon Half Marathon & 7-Mile Stinson Beach CA
Sat Oct 30 Triple Lakes Trail Half Marathon 40K & 40-Mile Greensboro NC
Sat Oct 30 UCP Life Without Limits Half Marathon & 5K Florence AL
Sat Oct 30 Viking Dash Trail Run – Hell Gregory MI

Sunday, October 31

Sun Oct 31 All-Out Kooky-Spooky Half Marathon 10K & 5K Golden CO
Sun Oct 31 Arlington Marathon Half Marathon 10K & 5K Arlington TX
Sun Oct 31 Atlanta Halloween Half Marathon & 5K Atlanta GA
Sun Oct 31 Big Easy Halloween Half Marathon & 5K New Orleans LA
Sun Oct 31 Colt State Park Half Marathon Bristol RI
Sun Oct 31 Day of the Dead Series Marathon Half Marathon 50K 10K & 5K – Day 4 Las Cruces NM
Sun Oct 31 Dothan Running Festival Half Marathon Dothan AL
Sun Oct 31 Down2Earth Cross Country Half Marathon 10K & 5K Hialeah FL
Sun Oct 31 Duneland Half Marathon & 5K Chesterton IN
Sun Oct 31 Fayetteville Spartan Trail US Championship Half Marathon 50K & 10K Fayetteville AR
Sun Oct 31 Florida Halloween Halfathon 10K & 5K St. Petersburg FL
Sun Oct 31 Flying Pig Marathon & Half Marathon Cincinnati OH
Sun Oct 31 Hairy Gorilla Half Marathon & Squirrelly 6-Miler Voorheesville NY
Sun Oct 31 Halloween Half Marathon & Relay Morristown NJ
Sun Oct 31 Halloween Hustle Half Marathon 10K & 5K Coeur d'Alene ID
Sun Oct 31 Halloween Run Michigan Cheap Half Marathon 10K & 5K – Midland Midland MI
Sun Oct 31 Halloween Hustle Half Marathon & 5K Marietta PA
Sun Oct 31 Haunted Forest Marathon Half Marathon & 5K Canton OH
Sun Oct 31 Haunted Half Marathon – Kyle Canyon Las Vegas NV
Sun Oct 31 Houston Half Marathon & 10K Houston TX
Sun Oct 31 Lake Tahoe Marathon: Emerald Bay Half Marathon South Lake Tahoe CA
Sun Oct 31 Marin County Half Marathon 10K & 5K San Rafael CA
Sun Oct 31 Mayor's Marathon Half Marathon & 5K Lubbock TX
Sun Oct 31 Moosehorn Ghost Run Half Marathon Baileyville ME
Sun Oct 31 Northern Ohio Marathon & Half Marathon Mentor OH
Sun Oct 31 Phoenix Wicked Half Marathon 10K & 5K Peoria AZ
Sun Oct 31 Queen Bee Half Marathon Cincinnati OH
Sun Oct 31 RDC Marathon & Half Marathon Durham NC
Sun Oct 31 Redding Road Race Half Marathon & 7-Mile Redding CT
Sun Oct 31 Scary Run Half Marathon 10K & 5K Washougal WA
Sun Oct 31 Seacoast Half Marathon Portsmouth NH
Sun Oct 31 Treasure Coast Halloween Half Marathon Stuart FL
Sun Oct 31 Virginia Spartan Trail Half Marathon 50K & 10K Arrington VA
Sun Oct 31 ZombieRunner Halloween Marathon Half Marathon 10K & 5K San Jose CA