Ultra races in United States — 2026 running calendar

LONG ISLAND MARATHON FESTIVAL

East Meadow, New York, United States

01 May, 2026 (Fri) – 31 May, 2026

Running

Ultra 36K 5K Marathon +10

The Great Virtual Race Across The States

Cincinnati, Ohio, United States

01 May, 2026 (Fri)

$125.00 - $135.00

Running

Ultra

Run With Your Perrijo 50 Mile Virtual Challenge

Livermore, California, United States

01 May, 2026 (Fri) – 31 May, 2026

Running

Ultra

Military Miles Challenge (May-June 2026)

Anywhere, United States

01 May, 2026 (Fri) – 30 Jun, 2026

$35.00 - $38.00

Running

Ultra

Saint Louis River to River

Saint Louis, Missouri, United States

01 May, 2026 (Fri) – 20 Sep, 2026

$15.00

Running

45.1K

Swim Hilton Head Island

Hilton Head Island, South Carolina, United States

01 May, 2026 (Fri) – 07 Sep, 2026

$75.00

Running

Ultra

U of U Health 50k in May 2026

Salt Lake City, Utah, United States

01 May, 2026 (Fri) – 30 May, 2026

Running

Ultra

G.R.A. 100 Mile CHALLENGE

Grayling, Michigan, United States

01 May, 2026 (Fri) – 31 Oct, 2026

Running

Ultra

Movin' 4 Missions

Milwaukee, Wisconsin, United States

01 May, 2026 (Fri) – 31 May, 2026

Running

Ultra

100 MILES IN MAY CHALLENGE

Anywhere, United States

01 May, 2026 (Fri) – 31 May, 2026

Running

Ultra

Move for Hope – Phoenix Rising - 1K • 5K • 10K • Half Marathon Virtual Races

Miami, Florida, United States

01 May, 2026 (Fri) – 31 May, 2027

$60.00

Running

1K 5K 10K Half-Marathon +4

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