May Half Marathons

Race Calendar
May Half Marathons

Below is a complete list of May Half Marathons. Easily sort by race date, member ratings or alphabetically to find an event that’s right for you. Plus, read finisher reviews to gain valuable insights you won’t find anywhere else!

Showing 1 - 50 of 411 results.

Apple Blossom Wine & Hard Cider Challenge

Delaplane, VA | May 1, 2021

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Armstrong Redwoods Trail Run

Guerneville, CA | May 1, 2021

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Cincinnati Flying Pig Marathon

Cincinnati, OH | May 1–2, 2021

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Collegiate Peaks Trail Runs

Buena Vista, CO | May 1, 2021

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Dallas Marathon

Dallas, TX | May 1–2, 2021

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Desert RATS Fruita Trail Half Marathon (fka Rabbit Valley Half)

Fruita, CO | May 1, 2021

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Endurancelife Coastal Trail Series Pembrokeshire

Haverfordwest, United Kingdom | May 1, 2021

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Frederick Running Festival

Frederick, MD | May 1–2, 2021

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Grayson Highlands 50 Mile, 50K & Half Marathon

Mouth of Wilson, VA | May 1–2, 2021

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Ha Giang Marathon

Dong Van, Vietnam | May 1, 2020 (2021 TBD)

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Ironhorse Races

Riceville, IA | May 1, 2021

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Kangaroo Island Marathon

Flinders Chase, Australia | May 1, 2021

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Lost Lake Ultras

Bellingham, WA | May 1, 2021

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MCRRC Riley’s Rumble Half Marathon & 8K

Boyds, MD | May 1, 2021

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Mississauga Marathon

Mississauga, Canada | May 1–2, 2021

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Muddy River Marathon

Cape Girardeau, MO | May 1, 2021

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Northeast Kingdom Marathon

Island Pond, VT | May 1, 2021

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OC Marathon & Half Marathon

Newport Beach, CA | May 1–2, 2021

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Pittsburgh Marathon

Pittsburgh, PA | May 1–2, 2021

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Plym Trail Spring Marathon & Half Marathon

Clearbrook, United Kingdom | May 1–2, 2021

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Pro Football Hall of Fame Marathon

Canton, OH | May 1–2, 2021

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Provo City Half Marathon

Provo, UT | May 1, 2021

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RC2 Community Runs

Ripon, WI | May 1, 2021

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Sierra Vista, AZ | May 1, 2021

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Run Holden Beach (BAM! Race Series)

Holden Beach, NC | May 1, 2021

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Safari Half Marathon

Wellington, South Africa | May 1, 2020 (2021 TBD)

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Spartan Race Montana

Bigfork, MT | May 1–2, 2021

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Wartrace, TN | May 1, 2021

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Sycamore Canyon Trail Races

Poway, CA | May 1, 2021

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Tails & Trails Half Marathon

Tallahassee, FL | May 1, 2021

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Trail Nut Trail Races

Bedford, VA | May 1, 2021

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Triple Dare Runs Deja Vu

Las Vegas, NV | May 1, 2021

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Twin Lights Half Marathon

Gloucester, MA | May 1, 2021

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USA Beach Running Championships

Cocoa Beach, FL | May 1, 2021

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Viking Dash Trail Run St. Louis

Troy, MO | May 1, 2021

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Wally Hayward Marathon

Centurion, South Africa | May 1, 2020 (2021 TBD)

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Whiskey Row Marathon

Prescott, AZ | May 1, 2021

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Willow 10 & 20 Miler

Hudson, WI | May 1, 2021

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Wisconsin Marathon

Kenosha, WI | May 1, 2021

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Amarillo Marathon

Amarillo, TX | May 2, 2020 (CANCELED, 2021 TBD)

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Avenue of the Giants Marathon & Half Marathon

Weott, CA | May 2, 2021

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Bay Bridge Half Marathon

Oakland, CA | May 2, 2021

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Belfast City Half Marathon

Belfast, Northern Ireland | May 2, 2021

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BMO Vancouver Marathon

Vancouver, Canada | May 2, 2021

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Cal Tri Events Lake Monticello

Charlottesville, VA | May 2, 2021

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Cambridge Boundary Run

Cambridge, United Kingdom | May 2, 2021

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Cinco de Mayo Half and 10K

Snoqualmie, WA | May 2, 2020 (CANCELED, 2021 TBD)

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Cinco de Mayo Half Marathon, 10K & 5K

Portland, OR | May 2, 2020 (CANCELED, 2021 TBD)

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Colorado Marathon

Fort Collins, CO | May 2, 2021

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Des Moines Women’s Half Marathon, 5K & Team Relay

Des Moines, IA | May 2–3, 2020 (CANCELED, 2021 TBD)

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