Once in a Blue Moon Half Marathon

MAY
31
2026
Run the Once in a Blue Moon on May 31, 2026 in Long Beach, CA, with 5K, 10K, and half marathon options along a flat, scenic coastal course. Chip timing, finisher medals, and postrace music and snacks promise a festive seaside finish.
Sun 31 May 2026
Half Marathon 10 kilometers 5 kilometers

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Event overview

The Once in a Blue Moon run by Califlow Runs is scheduled for May 31, 2026 in Long Beach, California. The event offers three distances:

  • 5K
  • 10K
  • Half Marathon

The race is described as a coastal beach event with a flat, scenic course along beachside pathways, parks, and riverways. The course uses open, pedestrian-friendly paths and may pass other local walkers and joggers.

Logistics and features

The event is chip-timed and provides free race-day and downloadable finish-line photos. All finishers receive a custom Once in a Blue Moon medal. Overall and age group awards are offered for each distance. Water stations and restrooms are available along the route. The finish area includes music, snacks, and photo opportunities. Bib pickup is available on race morning at the Race Ready Athletics tent. Parking options near the start/finish include street parking (check posted signs for street sweeping) and nearby paid beach lots at $2.00 per hour, payable by machine or the Passport Parking app. Entry prices listed for the event include fees and are set to increase after March 1, 2026. The listed race location is 5100 E Ocean Blvd, Long Beach, CA 90803 (Granada Beach). Visit the organization's website for the most recent information.

Half Marathon
Half Marathon
10 km
10k
5 km