Endurance Race Calendar May

May

14

Stamford Boys & Girls Club Corporate 5K at Mill River Park

Stamford, Connecticut, United States

Running

5K

May

14

Quadruple Crown Relays Presented by South Jersey RunningCo. and Nike

Westmont, New Jersey, United States

Running

Quadruple Crown 4x400m Relay

May

14

DFW Spring Series Race 4

Fort Worth, Texas, United States

Mountain biking

21.9K 16.4K 10.9K 5.5K +6

May

14

SpringCreek Elementary Run

Piqua, Ohio, United States

Running

Springcreek Primary 3rd Grade Heat 1 Springcreek Primary 3rd Grade Heat 2 Springcreek Primary 2nd Grade Heat 1 Springcreek Primary 2nd Grade Heat 2 +8

May

14

AABB Foundation World Blood Donor Day Virtual Walk/Run

Anywhere, United States

Running

5K 1.6K

May

14

Wlxc Season (August-Oct)

Toledo, Ohio, United States

Running

WLXC 2026 Season Kind-2nd Girls - Week 1 Kind-2nd Boys - Week 1 3rd & 4th Girls - Week 1 +24

May

14

2026 River Rat Run (3K)

Frankfort, Kentucky, United States

Running

2.9K

May

14

Pengelly Double and Single Dips

Missoula, Montana, United States

Running Trail running

Half-Marathon 10K

May

14

Wheeler Mission-Bloomington Gala Volunteers

Bloomington, Indiana, United States

Running

DO NOT USE

May

14

Branksome Hall 5k

Toronto, Ontario, Canada

Running

1.6K

May

14

The Great Ambassador Virtual Run Presented by Alter Ego Running

Jacksonville, Florida, United States

Running

The Great Ambassador Virtual Run - NO RACE GEAR PACKAGE The Great Ambassador Virtual Run - YES INCLUDE RACE GEAR PACKAGE ($150 VALUE)

May

14

RRRR Annual Club Picnic

Shreveport, Louisiana, United States

Running

5K