Mash + Dash Half Marathon

NOV
28
2026
A coastal out-and-back run at Alamitos Beach offering 5K, 10K, 10-mile and half marathon distances with water stations, medals and free race photos.
Sat 28 Nov 2026
13 miles 10 miles 10 kilometers 5 kilometers

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Mash + Dash

Mash + Dash is a coastal out-and-back running event at Alamitos Beach in Long Beach, California. The event offers multiple distances and uses marked routes on the beach path with the start and finish at the same location.

Distances offered:

  • 5K
  • 10K
  • 10 Miles
  • Half Marathon (13.1 Miles)

Course notes: the routes use a combination of a 5k loop and a 5-mile loop; the 5K is one lap, the 10K is two laps of the 5k route, the 10-mile is two laps of the 5-mile route, and the half marathon combines two laps of the 5-mile route plus one lap of the 5k route. The course runs entirely on the beach path, the course is not closed, and participants must stay on the right side of the pedestrian path.

On-course support includes two water stations and restrooms. Turns are marked with chalk, a runner-turn sign, and a flag. Parking is available in the lot at $2 per hour starting at 8am; street parking is free. Bibs should be worn on the front of the shirt for timing and photo tracking. Gear check is available at the registration tent; participants should bring their own bag.

All finishers receive a medal; overall first place male and female in each distance receive 1st place medals. Race results and photos are sent by email the day after the event and race photos are free. Visit the organization's website for the most recent information.

13 mi
Half Marathon
10 mi
10-Miler
10 km
10k
5 km
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