Marathon races in United States — 2026 running calendar

May

08

Grizzly Peak Trail Run

Berkeley, California, United States

Free - $90.00

Trail running Running

10K Half-Marathon 30K Marathon +3

May

08

P.a.c.e. Races for Youth Athletic Scholarships

Smiths Grove, Kentucky, United States

$50.00 - $75.00

Running

Marathon Half-Marathon

May

08

Lake Wobegon Trail Marathon

Saint Cloud, Minnesota, United States

$80.00

Running

Marathon

May

10

3 Days at the Fair

Augusta, New Jersey, United States

$150.00 - $625.00

Running

144 Hour 72 Hour 48 Hour 24 Hour +12

May

14

New River Marathon, Half Marathon & 5K

Todd, North Carolina, United States

$28.00 - $113.00

Running

5K Marathon Half-Marathon +1

May

15

Capital City Marathon

Olympia, Washington, United States

Free - $75.00

Running

1.9K Marathon Half-Marathon 8K

May

15

Pechanga Trail Run

Spicewood, Texas, United States

$10.00 - $130.00

Running Trail running

Ultra Marathon Half-Marathon 10K +2

May

15

Med City Marathon, presented by ActivePT

Rochester, Minnesota, United States

Free - $175.00

Running

5K 1.9K Health and Wellness Booth Local Arts Booth +9

May

15

Ymca Famous Idaho Potato Marathon & Fun Runs

Boise, Idaho, United States

$35.00 - $90.00

Running

Marathon Half-Marathon 10K 5K

May

16

Epic Marathon and Running Festival

Green Bay, Wisconsin, United States

$15.00 - $275.00

Running

Marathon Half-Marathon 5K 0.2K +2

May

16

Windermere Marathon

Spokane, Washington, United States

Free - $100.00

Running

Marathon Half-Marathon 10K 5K +4

May

22

Conquer The Canal

Delaware City, Delaware, United States

$35.00 - $125.00

Running

Marathon Half-Marathon 10K 5K