Half-Marathon races in United States — 2026 running calendar

May

17

Hometown Half Marathon & 5k/10k - Springfield

Springfield, Missouri, United States

Running

1.6K 5K 10K Half-Marathon +1

May

17

Mystic Half Marathon & 10K

Mystic, Connecticut, United States

Running

Half-Marathon 10K

May

17

Running through the Decades Half Marathon - Oklahoma City

Oklahoma City, Oklahoma, United States

Running

1.6K 5K 10.5K Half-Marathon +2

May

17

5th Annual Trail Days 5K, Half Marathon, and Run Happy Kids K

Damascus, Virginia, United States

Running

Half-Marathon 5K 1K

May

17

Girls on the Run Rockies Colfax SoleMates 2026

Denver, Colorado, United States

Running

Marathon Half-Marathon

May

17

Armed Services Marathon, Half Marathon & 5K

Grand Haven, Michigan, United States

Running

Marathon Half-Marathon 10K 5K

May

17

CR Half: Volunteer Registration

Cambridge, Massachusetts, United States

Running

Half-Marathon

May

17

Reflection Run

Washougal, Washington, United States

Running

Half-Marathon 10K 5K +2

May

17

Hometown Half Marathon & 5k/10k - Louisville

Louisville, Kentucky, United States

Running

1.6K 5K 10K Half-Marathon +1

May

16

Luau 5K, 10K, & 13.1M at Everett, WA (20)

Everett, Washington, United States

Running

5K 10K Half-Marathon

May

16

Harpers Ferry Half Marathon & 5K

Harpers Ferry, West Virginia, United States

Running

Half-Marathon 5K

May

16

Luau 5K, 10K, & 13.1M at Williamsburg, VA (20)

Williamsburg, Virginia, United States

Running

5K 10K Half-Marathon