Race Start End City State
2026 Girls on the Run Spring 5K - Washington County May. 30, '26 May. 30, '26 Frederick MD REGISTER
Betterton SwimFest May. 30, '26 May. 30, '26 Betterton MD REGISTER
Sky View Falcon 5K/Mile Adventure Run May. 30, '26 May. 30, '26 Bend OR REGISTER
Go Gray in May 2026 May. 23, '26 May. 23, '26 Bowie MD REGISTER
16TH WALK/JOG FOR THE "WELL" OF IT 5K May. 24, '26 May. 24, '26 Ridgely MD REGISTER
Catch Me If You Can 5K May. 16, '26 May. 17, '26 Bel Air MD REGISTER
Mother's Day Tea May. 9, '26 May. 9, '26 Tigard OR  
Johnnycake Jolt Series! May. 6, '26 May. 27, '26 Windsor Mill MD REGISTER
Bikes & Beers Baltimore May. 30, '26 May. 30, '26 Halethorpe MD REGISTER
Be You 5K Run/Walk May. 16, '26 May. 16, '26 Glenn Dale MD REGISTER
Potomac Riverkeeper Network's Splash and Dash May. 16, '26 May. 16, '26 Oxon Hill MD REGISTER
ORRC Hagg Lake Run and Walk May. 2, '26 May. 2, '26 Gaston OR REGISTER
Run into summer 5K Race for Tides of Grace May. 30, '26 May. 30, '26 Stevensville MD REGISTER
Extra Energy Challenge – Move for Chromosomal Variation Awareness May. 1, '26 May. 31, '26 Rockville MD REGISTER
Inspire Life 5K May. 9, '26 May. 9, '26 Gaithersburg MD REGISTER
Hillsboro Hustle 5K - Hillsboro, OR - 2026 May. 23, '26 May. 23, '26 Hillsboro OR  
E2P Multisport Training Camp & Retreat May. 15, '26 May. 15, '26 Tilghman MD REGISTER
UFOFEST Kids Adventure Run May. 16, '26 May. 16, '26 McMinnville OR  
Mini Duathlon | Mini Duatlón: 9:00 AM (6-8 year olds) May. 30, '26 May. 30, '26 Tigard OR  
KeizerFEST 5k Run and 2 Mile Walk May. 17, '26 May. 17, '26 Salem OR REGISTER
Bark in the Park May. 17, '26 May. 17, '26 Eugene OR REGISTER
Johns Hopkins Nursing 5K Fun Run & 1 Mile Fun Walk 2026 May. 16, '26 May. 16, '26 Baltimore MD REGISTER
Twilight Series #1 - 2 Mile Track Run May. 28, '26 May. 28, '26 Hampstead MD REGISTER
Running with The Devils PJ5K Run & Walk May. 2, '26 May. 3, '26 Owings Mills MD REGISTER
Super Mom 5K/10K/Half Marathon - Eugene May. 9, '26 May. 9, '26 Eugene OR REGISTER
Maryland Freedom Swim May. 2, '26 May. 2, '26 Cambridge MD REGISTER
Mini Duathlon | Mini Duatlón 2026 May. 30, '26 May. 30, '26 Tigard OR  
A Time of Hope May. 30, '26 May. 30, '26 Prineville OR REGISTER
RIOT IN THE CITY May. 2, '26 May. 2, '26 Baltimore MD REGISTER
Run For The Kids 5K May. 2, '26 May. 2, '26 Saint Marys City MD REGISTER