Mash + Dash Half Marathon
Always double-check with the organizer's website! This page may contain affiliate links.
Event
The Mash + Dash takes place on November 29, 2025 at Claremont Beach in Long Beach, CA. The event offers these distances:
- 5K
- 10K
- 10-Miler
- Half marathon
The start and finish are at 5400 E Ocean Ave, Long Beach, CA 90803. Early bib pick-up is available the day before at Sports Basement Long Beach.
Course and logistics
All races use out-and-back routes on the beach path. The 5K route is one lap for the 5K and two laps for the 10K. The 5-mile route is two laps for the 10-miler. The half marathon uses the 5-mile route twice plus the 5K route once. The course stays on the pedestrian side of the beach path and is not closed to the public.
On-course support includes two water stations and restrooms. Turns are marked with chalk, "runner turn" signs, and flags. Participants must wear their race bib on the front of their shirt. A staffed gear check is available at the registration tent (bring your own bag). Overall first-place medals are awarded to the top male and female in each distance. Race results and photos are emailed the day after the event; race photos are free. Parking in the lot is paid; street parking is free. Visit the organization's website for the most recent information.