Endurance Race Calendar May

May

31

Sgt David Hierholzer Memorial Day 50k

College Grove, Tennessee, United States

$30.00 - $50.00

Running

Ultra 35.4K 17.7K 6.4K

May

31

duckDNA Application Portal

Memphis, Tennessee, United States

Free

Running

Standard Sampling Program Hybrid Sampling Program HPAI Sampling Program Accepted: Standard Sampling +8

May

31

Because of the Brave 5K

Montevallo, Alabama, United States

$35.00

Running

5K

May

31

Freedom Splash 5k

Lawrenceburg, Tennessee, United States

$20.00 - $30.00

Running

5K 1.6K T-Shirt Only - NOT RACING

May

31

Runtastic Run OF Remembrance

American Fork, Utah, United States

$16.95 - $49.95

Running

10K 5K 1.6K

May

05

MRT 2026 5k

Statesville, North Carolina, United States

$8.00 - $16.00

Running

5K

May

11

Mighty Mountain Run - 5k 10K

Sophia, North Carolina, United States

$35.00 - $45.00

Trail running

5K 10K

May

13

GCXC Racing Pennsylvania Online Store

Wildwood, Pennsylvania, United States

Running

My heart is in the work t-shirt

May

15

Anonymous Running Challenge

Anywhere, United States

Free

Running

5K 10K

May

01

Support CoastBusters

Newport, Oregon, United States

Walking

Support CoastBusters

May

31

Dueces Wild Endurance Festival (Sunday)

Show Low, Arizona, United States

Triathlon

Sprint Age Group Sprint Relays Sprint Mixed Relays Sprint AquaBIke +1

May

31

El Taco Run

San Antonio, Texas, United States

Running

5K