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2,130 marathons found for Half marathon, United States. Keep the list broad first, then tighten the filters when a race looks realistic.
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Shelby Township, Michigan, United States
04OCT
42.2K
Oktoberfest Runs @ Stony Creek
Shelby Township, Michigan, United States
OCT
San Diego, California, United States
04OCT
21.1K
Pacific Beach Half Marathon & 5K
San Diego, California, United States
OCT
Mitchell, South Dakota, United States
04OCT
21.1K
Palace City Kiwanis Half Marathon, 10k, and 5k
Mitchell, South Dakota, United States
OCT
Modesto, California, United States
04OCT
21.1K
Peace Officer Memorial Run
Modesto, California, United States
OCT
Tyler, Texas, United States
04OCT
21.1K
Pink October
Tyler, Texas, United States
OCT
Chesterfield, Virginia, United States
04OCT
42.2K
Pocahontas Trail Festival
Chesterfield, Virginia, United States
OCT
04OCT
42.2K
Portland Marathon by OHSU
Portland, Oregon, United States
BQ Qualifier
Poulsbo, Washington, United States
04OCT
21.1K
Poulsbo Half Marathon & 10k
Poulsbo, Washington, United States
OCT
Redding, California, United States
04OCT
21.1K
Redding Breakfast Lions Turtle Bay Run 2026
Redding, California, United States
OCT
San Jose, California, United States
04OCT
21.1K
Rock 'n' Roll San Jose
San Jose, California, United States
Certified
Reno, Nevada, United States
04OCT
ULTRA
Rock Reno Half Marathon, Relay & 5K
Reno, Nevada, United States
OCT
Crazy Horse, South Dakota, United States
04OCT
42.2K
Run Crazy Horse
Crazy Horse, South Dakota, United States
OCT
Conshohocken, Pennsylvania, United States
04OCT
ULTRA
Shoes 'N Brews 26.2 KM "Metric Marathon"
Conshohocken, Pennsylvania, United States
OCT
Hampton, New Hampshire, United States
04OCT
21.1K
Smuttynose Rockfest Half Marathon & 5K
Hampton, New Hampshire, United States
Certified
Fayetteville, Arkansas, United States
04OCT
21.1K
Spooky Sprint - Fayetteville
Fayetteville, Arkansas, United States
OCT
Willard, Missouri, United States
04OCT
21.1K
Spooky Sprint - Springfield
Willard, Missouri, United States
OCT
Toledo, Ohio, United States
04OCT
21.1K
Spooky Sprint - Toledo
Toledo, Ohio, United States
OCT
Nebraska, United States
04OCT
ULTRA
Spooky Sprint Omaha
Nebraska, United States
OCT
Mcdonough, Georgia, United States
04OCT
42.2K
Taco Sloth 1M 5K 10K 13.1 26.2 - Now Only $18!
Mcdonough, Georgia, United States
OCT
Jersey City, New Jersey, United States
04OCT
21.1K
The JC Green Fall Half lMarathon, 10k, 5k -2026
Jersey City, New Jersey, United States
OCT
Jersey City, New Jersey, United States
04OCT
ULTRA
The JC Green Half, 10K, and 5K
Jersey City, New Jersey, United States
OCT
Coburn, Pennsylvania, United States
04OCT
42.2K
The Raven
Coburn, Pennsylvania, United States
OCT
Highlandville, Missouri, United States
04OCT
21.1K
Trailfest | Fleet Feet Springfield
Highlandville, Missouri, United States
OCT
Waterville, Maine, United States
04OCT
42.2K
Waterville Marathon - Full/Half/10K/5K - Running Festival
Waterville, Maine, United States
OCT
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