14th Annual Los Alamos Old Days Stampede 5K

5K run/walk Sunday September 28th 2025, 9:30am at Arthur Ferini Park on Bell St.

Come join us for our 5K run or walk through the scenic town of Los Alamos and also enjoy the towns annual Old Days celebration, with entertainment for the whole family. The run will finish just prior to the Old Days Parade, so come enjoy it all!!!
The run/walk is a fund raiser for the nonprofit sports club part of Cal Swoosh which uses the proceeds for under privilege kids to play sports.

Cost for the run/walk is $30 and includes a T-Shirt (While supplies last).

Donations are also encouraged 😉.

Pre-register or donate at Venmo- @calswoosh

On the day of the Run/Walk, from 8:00am-9:15am prior to the race, registration/donations for the Run/Walk will be held. 

The run/walk will start from Arthur Ferini Park on Bell St. Trophies to 1st overall male & female finishers. Medals to top 3 finishers in 7 divisions.
Hope to see all of you out there for a great run and to support an even greater cause.