Search for October Half Marathons at https://www.halfmarathonsearch.com/half-marathons-october

Here is a "Quick View" list of Half Marathons in October:

Heart of the Cool Trail Run Half Marathon, 10k, 5k

Lions Turtle Bay Three Bridges Half Marathon

Urban Cow Half Marathon, Relay & 5k

Tiburon by the Bay Half Marathon & 5k H.O.T. Half Marathon & 1/4 Marathon SRVEF Run for Education Half Marathon & 5k Boulder Backroads Marathon, Half Marathon Bear Chase Trail Half Marathon & 10k Ridgefield Pamby Half Marathon Autumn Georgetown Half Marathon & 5k

Key Biscayne Half Marathon

Hero Half Marathon & 10k

Maine Marathon, Half Marathon & Relay Race through the Woods Trail 1/2 Marathon & 5.5 Miler

The Blue Steeele Stampede Trail 21k [half marathon] & 10k

Fall River Half Marathon & 5k

Harwich Cranberry Harvest Half Marathon

Falling Waters Trail Half Marathon, 10k, 5k Grand Country Half Marathon

Mo' Cowbell Half Marathon

Smuttynose Rockfest Marathon & Half Marathon The Traveler Beer Co. New England Half Marathon

Divas Half Marathon at Long Island

Wineglass Marathon, Half marathon, 5k Healing Half Marathon & 10k Queen City Women's Half Marathon & 5k

Northern Ohio Marathon, Half Marathon, 5k, 2mi Run and Ride Kings Island Half Marathon, Quarter Marathon & 1mile

Spirit of Survival Marathon, Half Marathon, 10k, 5k

OctoHalf 1/2 Marathon

Hannover YMCA Half Marathon

Leaf Peepers Half Marathon & 5k EX2 Hemlock Half Marathon & 10k Prince William Half Marathon Nevada Half Marathon (Tahoe Trifecta 1 of 3) Little River Canyon Half Marathon

Ruffner Mountain Crusher Ridge 21k (half), 42k, 63k

Zombie Half Marathon & Kids 2.5k

Bizz Johnson Express Half Marathon

Carnelian Bay Half Marathon (Tahoe Trifecta 2 of 3) Sonoma Ultra 50k & Half Marathon Raptor Ridge Half Marathon Beulah Challenge Trail Run & Walk Half Marathon, 10k, 5k

Durango Double Horse Gulch Hustle Trail Half Marathon Hoof it 4 Harlie Half Marathon & 5k

Southernmost Marathon & 1/2 Marathon Moraine Run for the Hills Half Marathon & 10k

Prairie State Marathon, Half Marathon Great River Road Run 1/2 Marathon Hero Run Half Marathon, 5k, 1mi Limestone Capital Half Marathon & 5k

Indianapolis Marathon and Half Marathon 12:1 Run 1/2 Marathon, 10k, 5k Rock Lake Perry Trail Runs Half Marathon, 50k, 5k Zooma Cape Cod Half Marathon & 10k Bruckelaufe Half Marathon

Lions of Michigan Eye Care, Do You? Half Marathon, 8k, 5k

The Lake Shore Lap Half Marathon, 10k, 5k

Big Woods Half Marathon, 10k, 5k Frog Hill 1/2 Marathon, 10k, 5k Lake Tahoe Flume Fall Classic 1/2 Marathon Joe English Twilight Challenge Marathon, Half Marathon etc.

Rock'n'Roll Brooklyn Half Marathon Lake Placid Classic Half Marathon & 10k The Bay Ridge Half Marathon Vintage Run Half Marathon, 5k and Wine Festival

Race 13.1 Raleigh Fall Half Marathon, 10k, 5k

Queen Bee Half Marathon Hollidaysburg YMCA Half Marathon, 10k, 5k Philadelphia Women's Half Marathon & 8k

Mahoning Shadow Shuffle Half Marathon, 10k, 5k Hartness Half Marathon & 5k

Southern Tennessee Plunge Marathon & Half Marathon Flat Rock Ranch Marathon & Half Marathon Clark Gardens I'm Only Half Crazy Half Marathon, 5k

Pink Series Park City Half Marathon & 5k

Operation61 End Demand Half Marathon, 10k, 5k The Trail Mix Half Marathon, 10k, 5k

Fall City Half Marathon & 10k

St. Edward Harvest Half Marathon & 10k Mainly Marathons Appalacian Series Full, Half, 5k (day 1)

Bellin Women's Half Marathon Race 13.1 Little Rock Half Marathon Rock'n'Roll San Jose 1/2 Marathon

Long Beach International Marathon, Half Marathon, 5k

Bizz Johnson Half Marathon, Marathon, 10k, 50k

City to the Sea Half Marathon, 5k & Kids Run

Run Wine Country Healdsburg Marathon & Half Marathon

Emerald Bay Half Marathon (Tahoe Trifecta 3 of 3) Kokanee Trail Runs 1/2 Marathon, 10k, 5k BBSC Boulder Rez Marathon, Half Marathon, 10k 5k

Louisville Trail Half Marathon & 10k

XTERRA Marathon of Trail Races Marathon, Half, 5k Blue Mountain Beach Half Marathon & 10k Octoberfest Half Marathon, 10k, 5k

City of the Trees Marathon & Half Marathon PNC Bank Peoria Marathon, Half Marathon, 5k

Prairie Fire Fall Marathon, Half Marathon, 5k

Old Orchard Beach Half Marathon & 5k

Boston Athletic Association "BAA" Half Marathon

Portland St. Patrick Fall Festival Half Marathon & 5k Great 38 Race Weekend 13.1mi, 8mi, 5mi Canine Classic Half Marathon, 5 mile, 2 mile The New Jersey Shore Half Marathon 2017 Registration

Shades of Death Half Marathon Half Marathon 2016 Registration Paine to Pain Trail Half Marathon

Mohawk Hudson River Marathon & Half Marathon

The Empire State Marathon, Half Marathon & Relay NYRR Staten Island Half Marathon

Dayton River Corridor Classic Half Marathon & 5k

Towpath Marathon, Half Marathon Portland Marathon, Half Marathon

Dream, Live, Prosper Half Marathon

Run Crazy Horse 26.2mi, 13.1mi Peroni Crawlin Crab Half Marathon & 5k Mainly Marathons Appalachian Series 26.2mi, 13.1mi, 5k (Day 2)

Charlottesville Fall Classic Half Marathon, 10k

Hokie Half Marathon & 5k (This site is hacked, don't click on their site)

Poulsbo Marathon, Half Marathon (no live website)

Spokane Marathon, Half Marathon, Relay, 5 miler

Sun City Half Marathon, 5k Mainly Marathons Appalachian Series Full, Half, 5k (day 3) Mainly Marathons Appalachian Series Full, Half, 5k (day 4) Mainly Marathons Appalachian Series Full, Half, 5k (day 5) Mainly Marathons Appalachian Series Full, Half, 5k (day 6) Huntsman World Series Games Half Marathon & 5k Mainly Marathons Appalacian Sereis Full, Half, 5k (day 7) Run the Rock Marathon, Half Marathon, 10k, 5k Grand Canyon Half Marathon 2017 Arkansas Marathon, Half Marathon, 10k Sierra Trail Half Marathon

Tarantula Run Half Marathon, 10k, 5k Griffith Park Half Marathon Eversource Hartford Marathon & Half Marathon Mainly Marathons Appalacian Sereis Full, Half, 5k (day 8) Jacksonville Marine Corps 1/2 Marathon & Freedom 5k The Soda Screamer Half Marathon, 10k, 5k, 1mi

DPR Trail Races Marathon, Half Marathon, 50mi Evansville Half Marathon Knobstone Trail Mini 13.1, 10k, 5k Purdue Boilermaker Half Marathon & 5k Pumpkin Harvest Fest Half Marathon

Deerfield Park Trail Half Marathon, 10k, 5k Sandhill Crane All Trail Half Marathon, 10k, 5k

Gear Western Country Half Marathon & 5k Night Light Half Marathon, 10k, 5k & Relay Bemidji Blue Ox Marathon, Half Marathon & 5k Scenic Byway Half Marathon Night Life Half Marathon (evening event) Bear Creek Run Half Marathon and Team Relay Bethel Half Marathon & 5k

The Cannonball Marathon Half Marathon & 5k Warren County YMCA SuperKwik Challenge Half Marathon & 5k Harvest Running Festival 21k Half Marathon & Relay Walk for Life Famously Hot Pink Half Marathon, 5k, 10k Lowcountry Trail Half Marathon & 5k Murfreesboro Half Marathon BCS Buffalo Stampede Half Marathon & 5k The Showdown Half Marathon & 5k Texas Wine Series at Llano Estacado Winery 1/2 Marathon, 10k, 5k Antelope Island Half Marathon & Layton Marathon The Haunted Half Salt Lake

LewisGale Salem Half Marathon & 8k Ft. Steilacoom 5k, 10k, Half Marathon, Marathn, 50k

Lake Padden Trail Classic Half Marathon Three Eagle Half Marathon & 5k

Whistlestop Marathon & Half Marathon Fayetteville Firefighter's Hero Half Marathon SPACEROCK Trail Run Half Marathon, 10k, 5k

Humboldt Redwoods Marathon & Half Marathon

Merco Credit Union Half Marathon & 5k Pasadena Trail Half Marathon

Rock'n'Roll Denver 1/2 Marathon & Relay Mainly Marathons Appalachian Series Full, Half, 5k (day 9) Maui Marathon & Half Marathon

Springfield Marathon & Half Marathon

IMT Des Moines Marathon, Half Marathon, Relay, 5k

Iron Horse Half Marathon

Gulf Coast Half Marathon North Shore