Once in a Blue Moon 5K. 10K. Half Marathon by Califlow Runs
- Date Sun 31st May 2026
- Time 7:00AM PDT
- Location Long Beach, California
- Price $42.33 - $57.17
- Races 3 races
- Distances 5km, 10km, Half Marathon
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Event summary
Join the excitement at the Once in a Blue Moon Run on Sunday, May 31, 2026, in beautiful Long Beach, Los Angeles! This unique event features a 5K, 10K, and a Half Marathon, all set against the stunning backdrop of the California coast. What makes this race truly special is that it coincides with an actual Blue Moon, a rare occurrence that only happens once every 23 years.
Whether you’re chasing personal bests, creating unforgettable memories, or simply soaking in the vibrant atmosphere, this event promises high-energy vibes and breathtaking ocean views. Enjoy professionally chip-timed races, free race-day photos, and custom finisher medals for all participants. With a flat and fast course, water stations, and a lively finish-line celebration, the Once in a Blue Moon Run is not just about the miles; it’s about being part of a magical moment. Don’t miss your chance to say, "I was there!" as you run under the glow of the Blue Moon.
Whether you’re chasing personal bests, creating unforgettable memories, or simply soaking in the vibrant atmosphere, this event promises high-energy vibes and breathtaking ocean views. Enjoy professionally chip-timed races, free race-day photos, and custom finisher medals for all participants. With a flat and fast course, water stations, and a lively finish-line celebration, the Once in a Blue Moon Run is not just about the miles; it’s about being part of a magical moment. Don’t miss your chance to say, "I was there!" as you run under the glow of the Blue Moon.
Organiser's Description
ONCE IN A BLUE MOON RUN
5K 10K HALF MARATHON
SUNDAY, MAY 31, 2026 | LONG BEACH, CA
THIS RUN REALLY IS ONCE IN A BLUE MOON LITERALLY.
JOIN US ON THE MORNING OF THE ACTUAL BLUE MOON FOR A RARE AND MEMORABLE COASTAL RUN DESIGNED TO CELEBRATE MOVEMENT, TIMING, AND BEING PRESENT FOR MOMENTS THAT DONT COME AROUND OFTEN. WHETHER YOURE CHASING MILES, MEMORIES, OR JUST THE MAGIC OF A TRULY UNIQUE DAY, THIS IS ONE YOULL WANT TO SAY YOU WERE PART OF.
EXPECT OCEAN VIEWS, HIGH VIBES, AND THAT UNMISTAKABLE CALIFLOW ENERGY ALL UNDER THE GLOW OF A MOON THAT ONLY SHOWS UP EVERY FEW YEARS.
FUN BLUE MOON FACTS
A BLUE MOON HAPPENS WHEN THERE ARE TWO FULL MOONS IN ONE MONTH
IT OCCURS ONLY EVERY 23 YEARS, WHICH IS WHY WE SAY ONCE IN A BLUE MOON
THE MOON ISNT ACTUALLY BLUE BUT THE MOMENT IS STILL RARE AND SPECIAL
THIS IS ONE OF THOSE RUNS PEOPLE REMEMBER AND SAY: I WAS THERE FOR THAT.
RACE HIGHLIGHTS
PROFESSIONALLY CHIP-TIMED FOR ACCURATE RESULTS
FREE RACE-DAY PHOTOS & DOWNLOADABLE FINISH-LINE PICS
FINISHER MEDALS FOR ALL PARTICIPANTS
OVERALL & AGE GROUP AWARDS
FLAT, FAST, SCENIC BEACH COURSE
WATER STATIONS & RESTROOMS ALONG THE ROUTE
FINISH-LINE MUSIC, SNACKS, AND PHOTO MOMENTS TO CELEBRATE YOUR MILES
_ WHY CALIFLOW RUNS?_
AT CALIFLOW RUNS, WE BELIEVE RUNNING SHOULD BE INCLUSIVE, AFFORDABLE, AND FUN. WE HOST 50+ EVENTS EACH YEAR TO CREATE EXPERIENCES WHERE EVERYONE OF EVERY PACE AND BACKGROUND FEELS WELCOME.
OUR RACES ARE KNOWN FOR PROFESSIONAL EXECUTION, FREE PHOTOS, GREAT VIBES, AND A STRONG SENSE OF COMMUNITY WITHOUT THE BIG-RACE PRICE TAG. WHETHER YOURE RACING THE CLOCK OR SOAKING IN THE MOMENT, YOU BELONG HERE.
WHO CAN PARTICIPATE?
EVERYONE!
RUNNERS WALKERS STROLLERS ALL PACES WELCOME
COME AS YOU ARE. LEAVE WITH RARE MILES AND A GREAT STORY.
ALARM CLOCK BIB PICK-UP & START TIMES
LOCATION: 5100 E OCEAN BLVD, LONG BEACH, CA 90803 (GRANADA BEACH)
BIB PICK-UP:
6:15 AM 7:30 AM AT THE RACE READY ATHLETICS TENT
START TIMES:
HALF MARATHON: 7:00 AM
5K & 10K: 7:30 AM
PARKING INFO
STREET PARKING AVAILABLE (CHECK POSTED SIGNS FOR STREET SWEEPING).
PAID BEACH LOT PARKING IS $2.00 PER HOUR VIA PASSPORT APP OR ON-SITE MACHINE.
ARRIVE EARLY FOR BEST ACCESS NEAR THE START LINE.
AWARDS & MEDALS
ALL FINISHERS RECEIVE A CUSTOM ONCE IN A BLUE MOON MEDAL
OVERALL & AGE GROUP AWARDS IN EACH DISTANCE
IF ITS NOT CALIFLOW, ITS JUST AN AVERAGE RACE.
5K 10K HALF MARATHON
SUNDAY, MAY 31, 2026 | LONG BEACH, CA
THIS RUN REALLY IS ONCE IN A BLUE MOON LITERALLY.
JOIN US ON THE MORNING OF THE ACTUAL BLUE MOON FOR A RARE AND MEMORABLE COASTAL RUN DESIGNED TO CELEBRATE MOVEMENT, TIMING, AND BEING PRESENT FOR MOMENTS THAT DONT COME AROUND OFTEN. WHETHER YOURE CHASING MILES, MEMORIES, OR JUST THE MAGIC OF A TRULY UNIQUE DAY, THIS IS ONE YOULL WANT TO SAY YOU WERE PART OF.
EXPECT OCEAN VIEWS, HIGH VIBES, AND THAT UNMISTAKABLE CALIFLOW ENERGY ALL UNDER THE GLOW OF A MOON THAT ONLY SHOWS UP EVERY FEW YEARS.
FUN BLUE MOON FACTS
A BLUE MOON HAPPENS WHEN THERE ARE TWO FULL MOONS IN ONE MONTH
IT OCCURS ONLY EVERY 23 YEARS, WHICH IS WHY WE SAY ONCE IN A BLUE MOON
THE MOON ISNT ACTUALLY BLUE BUT THE MOMENT IS STILL RARE AND SPECIAL
THIS IS ONE OF THOSE RUNS PEOPLE REMEMBER AND SAY: I WAS THERE FOR THAT.
RACE HIGHLIGHTS
PROFESSIONALLY CHIP-TIMED FOR ACCURATE RESULTS
FREE RACE-DAY PHOTOS & DOWNLOADABLE FINISH-LINE PICS
FINISHER MEDALS FOR ALL PARTICIPANTS
OVERALL & AGE GROUP AWARDS
FLAT, FAST, SCENIC BEACH COURSE
WATER STATIONS & RESTROOMS ALONG THE ROUTE
FINISH-LINE MUSIC, SNACKS, AND PHOTO MOMENTS TO CELEBRATE YOUR MILES
_ WHY CALIFLOW RUNS?_
AT CALIFLOW RUNS, WE BELIEVE RUNNING SHOULD BE INCLUSIVE, AFFORDABLE, AND FUN. WE HOST 50+ EVENTS EACH YEAR TO CREATE EXPERIENCES WHERE EVERYONE OF EVERY PACE AND BACKGROUND FEELS WELCOME.
OUR RACES ARE KNOWN FOR PROFESSIONAL EXECUTION, FREE PHOTOS, GREAT VIBES, AND A STRONG SENSE OF COMMUNITY WITHOUT THE BIG-RACE PRICE TAG. WHETHER YOURE RACING THE CLOCK OR SOAKING IN THE MOMENT, YOU BELONG HERE.
WHO CAN PARTICIPATE?
EVERYONE!
RUNNERS WALKERS STROLLERS ALL PACES WELCOME
COME AS YOU ARE. LEAVE WITH RARE MILES AND A GREAT STORY.
ALARM CLOCK BIB PICK-UP & START TIMES
LOCATION: 5100 E OCEAN BLVD, LONG BEACH, CA 90803 (GRANADA BEACH)
BIB PICK-UP:
6:15 AM 7:30 AM AT THE RACE READY ATHLETICS TENT
START TIMES:
HALF MARATHON: 7:00 AM
5K & 10K: 7:30 AM
PARKING INFO
STREET PARKING AVAILABLE (CHECK POSTED SIGNS FOR STREET SWEEPING).
PAID BEACH LOT PARKING IS $2.00 PER HOUR VIA PASSPORT APP OR ON-SITE MACHINE.
ARRIVE EARLY FOR BEST ACCESS NEAR THE START LINE.
AWARDS & MEDALS
ALL FINISHERS RECEIVE A CUSTOM ONCE IN A BLUE MOON MEDAL
OVERALL & AGE GROUP AWARDS IN EACH DISTANCE
IF ITS NOT CALIFLOW, ITS JUST AN AVERAGE RACE.
Races
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Location
5400 E Ocean Blvd, Long Beach, 90803, CA, United States
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Once in a Blue Moon 5K. 10K. Half Marathon by Califlow Runs
