Endurance Race Calendar May

100 MILES IN MAY CHALLENGE

Anywhere, United States

01 May, 2026 (Fri) – 31 May, 2026

Running

Ultra

Sacred Heart School Race for Education

Southaven, Mississippi, United States

01 May, 2026 (Fri)

Go Girl Run | Kansas City, KS

Overland Park, Kansas, United States

01 May, 2026 (Fri) – 16 May, 2026

Running

3.2K Half-Marathon 5K +3

Tahanto 3K Glow Run/Walk

Boylston, Massachusetts, United States

01 May, 2026 (Fri)

Running

3K

Endurance Fest Crown

Savannah, Georgia, United States

01 May, 2026 (Fri) – 04 Jul, 2026

$20.00 - $100.00

Running

1.6K 5K 10K Half-Marathon +3

Gray May 5k - Virtual

Newburgh, Indiana, United States

01 May, 2026 (Fri) – 16 May, 2026

Running

5K

21 miles in 21 days

San Antonio, Texas, United States

01 May, 2026 (Fri)

2026 Alton Hall Fun Run

Galloway, Ohio, United States

01 May, 2026 (Fri)

Running

3.2K

Cinco De Mayo Virtual 5K, 10K, 13.1M, & 26.2M (May 2026)

Anywhere, United States

01 May, 2026 (Fri) – 31 May, 2026

Running

5K 10K Half-Marathon Marathon

CWU ROTC Norwegian Foot March

Ellensburg, Washington, United States

01 May, 2026 (Fri) – 02 May, 2026

Running

30K

Dental Navigator & Scda First Annual Walk/Run 5k

Ann Arbor, Michigan, United States

01 May, 2026 (Fri) – 11 Jul, 2026

$25.00

Running

5K

Virtual Steps For Strong Minds 5K Run/Walk

Anywhere, United States

01 May, 2026 (Fri) – 31 May, 2026

Running

5K