Race Start End City State
Armed Forces Day: America's Kids Run + Run the Rock 5K/10K May. 16, '26 May. 16, '26 Rock Island IL REGISTER
Faith over Fear 5K May. 16, '26 May. 16, '26 Vevay IN REGISTER
Tulip Trot 5k May. 2, '26 May. 2, '26 Mecklenburg NY REGISTER
NOCC Team Teal Run and Walk May. 9, '26 May. 9, '26 Portsmouth NH REGISTER
Hospital Heroes Against Hunger 5K May. 16, '26 May. 16, '26 Canton OH REGISTER
Jodie Schmahl-Olson Memorial 5K (Run/Walk) May. 30, '26 May. 30, '26 Two Harbors MN REGISTER
KC Run For The Cup 5K May. 30, '26 May. 30, '26 Kansas City MO REGISTER
Boise River Marathon May. 2, '26 May. 2, '26 Eagle ID REGISTER
Indian Ladder Farms Spiked Apple 5k May. 16, '26 May. 16, '26 Altamont NY REGISTER
Feline Fundraiser 5k May. 2, '26 May. 2, '26 Midlothian VA REGISTER
FitzGerald Elementary 8th Annual Fitzy 5k Fun Run/Walk May. 28, '26 May. 28, '26 Waltham MA REGISTER
Cardio for Cosmo Memorial 5K/1Mile May. 16, '26 May. 16, '26 Burlington NJ REGISTER
ORRRC 200K NO WAY! 300K GRAND SLAM! May. 16, '26 Nov. 6, '26 Dayton OH REGISTER
Berryman 50 Mile and Marathon Trail Races May. 16, '26 May. 16, '26 Berryman MO REGISTER
August Hill Wine Run 5k May. 9, '26 May. 9, '26 Utica IL REGISTER
MAY THE FOURTH BE WITH YOU 4K & WOOKIEE 1K May. 4, '26 May. 4, '26 Perrysburg OH REGISTER
Waubonsee Foundation Trail Run May. 30, '26 May. 30, '26 Sugar Grove IL REGISTER
One Body. One Race. One Finish Line 5k May. 30, '26 May. 30, '26 Benton LA REGISTER
Go Spring! May. 9, '26 May. 9, '26 Saint Paul MN REGISTER
Charles Warren Stanley '67 Memorial 5K May. 17, '26 May. 17, '26 Philadelphia PA REGISTER
Running Into Action 5k May. 2, '26 May. 2, '26 Meyersdale PA REGISTER
Run the Runway 5K - Cape May Airport May. 9, '26 May. 9, '26 Rio Grande NJ REGISTER
Cinco de Mayo CincoK May. 5, '26 May. 5, '26 Keller TX REGISTER
2026 CKF UNBOUND Gravel May. 30, '26 May. 31, '26 Emporia KS REGISTER
The Homestretch 5K May. 30, '26 May. 30, '26 Seattle WA REGISTER
Canine On the Creek May. 17, '26 May. 17, '26 Dumont CO REGISTER
Triangle Run Smart Spring 2026 Kids Race May. 17, '26 May. 17, '26 Cary NC REGISTER
Run 4 Kidtopia 5K/10K (formerly Dan Robinson Memorial Run) May. 2, '26 May. 2, '26 Grant AL REGISTER
Hometown Half Marathon & 5k/10k - Fayetteville May. 31, '26 May. 31, '26 Fayetteville AR REGISTER
Mint Springs Trail 5K++ May. 9, '26 May. 9, '26 Crozet VA REGISTER