Blue Moon 5K. 10K. Half Marathon by Califlow Runs

Lace up for an extraordinary running experience at the Blue Moon 5K, 10K, and Half Marathon by Califlow Runs on Sunday, May 31, 2026, in beautiful Long Beach, California. This event is truly a "once in a blue moon" occasion, coinciding with an actual blue moon, making it a rare and memorable coastal run designed to celebrate movement and being present for unique moments. With distances of 3.1 miles, 6.2 miles, and 13.1 miles available, runners of all levels can find their stride.

The course itself promises a flat and scenic journey along Long Beach's inviting beachside pathways, parks, and riverways, offering abundant ocean views and a vibrant atmosphere. You'll navigate pedestrian-friendly paths, enjoying the picturesque Southern California coastline. Aid stations providing water and restrooms will be available along the route to keep you fueled and refreshed, ensuring a comfortable race experience. Typical race day conditions in late May boast pleasant highs around 74°F and lows around 60°F, with a minimal 1% chance of precipitation, creating ideal running weather.

Califlow Runs prides itself on fostering an inclusive, affordable, and fun environment, ensuring every participant feels welcome, regardless of pace or background. Expect professional chip-timing, free race-day photos, and a custom finisher medal awaiting you at the finish line. The celebration continues with music and snacks in the finish area, creating a festive atmosphere to commemorate your achievement. The race kicks off from the area of Granada Beach at 5100 E Ocean Blvd in Long Beach, with bib pickup available on race morning.