Marshmallow Dash Half Marathon

JAN
18
2026
Start the year with a seaside run at Alamitos Beach in Long Beach on January 18. The Marshmallow Dash offers 5K, 10K, 10 mile and half marathon options, ocean views, aid stations, and a finisher medal for everyone.
Sun 18 Jan 2026
13 miles 10 miles 10 kilometers 5 kilometers

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The Marshmallow Dash : event overview

The Marshmallow Dash takes place on January 18, 2026, at Alamitos Beach in Long Beach, California (780 E Shoreline Dr.). The event includes the following distances:

  • 5K
  • 10K
  • 10-Miler
  • Half Marathon

Bib pick-up is available the day before at Sports Basement Long Beach (2100 N Bellflower Blvd) and at the registration area on race day. Parking in the lot is paid ($2 per hour) and street parking is free. The Passport app may be used to pay for parking for half marathon and 10-miler participants.

Course, support, and race rules

Courses use out-and-back loops: the 5K route serves the 5K (one lap) and 10K (two laps); a 5-mile route is used for the 10-miler (two laps); the half marathon runs the 5-mile route twice plus the 5K route once. The beach path is an open course; pedestrians should stay on the right side and cyclists on the left. A water station is located at Belmont Pier. The finish area has an aid station with water, Gatorade, gels, and fruit snacks. First aid kits are at each station and crew members have CPR training. Turns are marked with chalk, a runner turn sign, and flags. Runners must wear their race bib on the front of their shirt. Gear check is available at the registration tent; bring a personal bag. All finishers receive a medal; overall first place male and female in each distance receive first place medals. Early starters are not eligible for awards. Visit the organization's website for the most recent information.

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