
Long Beach, United States of America · Sunday 13 September 2026
😵💫 SEASONAL CONFUSION RUN 5K • 10K • Half Marathon 📅 Sunday, September 13 📍 5100 E Ocean Blvd, Granada Beach | Long Beach, CA Sweater or bikini? Iced coffee or pumpkin spice? It’s California — we’re officially in a state of seasonal confusion. The Seasonal Confusion Run celebrates that weird in-between moment when summer won’t let go, fall is pretending to arrive, and the weather absolutely refuses to cooperate. Come run the coast in whatever makes sense to you — hoodie, tank top, or beachwear encouraged. 🏁 Race Day Schedule • Half Marathon: 7:00 AM • 5K & 10K: 7:30 AM Same-Day Registration & Bib Pickup: Opens at 6:00 AM 🌊 Why You’ll Love It Flat, fast, scenic beach path course Beginner- and walker-friendly Strollers welcome Dogs on leash welcome 🐾 Professional chip timing Free race-day photos Overall & age group awards Finish line festival vibes 🍔 Post-Race Perk Run first, refuel after. Take your bib just steps from the finish line to Monty’s Dog Beach Café and receive 20% off food when you present your race bib. 💛 Why CaliFlow Runs Life doesn’t wait for perfect conditions — and neither do we. CaliFlow Runs creates inclusive, feel-good races where everyone belongs. Whether you’re racing hard, walking it out, running with your pup, or just here for the vibes, this is a space to move, breathe, laugh, and enjoy the moment. It may not be fall yet. It may not be summer anymore. But it is a great day to run.
Adjusted Time
1:40:47
Time difference: -4.2 minutes compared to a flat, road, temperate course.
Seasonal Confusion 5K. 10K. Half Marathon by Califlow Runs is a half marathon held in Long Beach, United States of America, scheduled for Sunday 13 September 2026. The course is run on road surface with 0m of total elevation gain, reaching a maximum altitude of 0m above sea level. For registration and full race details, visit the official Seasonal Confusion 5K. 10K. Half Marathon by Califlow Runs website.
This is a very flat course with only 0m of total elevation gain across the full distance. The course ranges from 0m to 0m above sea level — a 0m elevation range that makes it one of the flatter races available. Runners targeting a personal best will appreciate the minimal climbing.
Seasonal Confusion 5K. 10K. Half Marathon by Califlow Runs is run on road surfaces, which provide the fastest and most predictable conditions for marathon running. Road courses allow for consistent pacing and are typically the best choice for runners targeting a personal best time.
Our difficulty rating for Seasonal Confusion 5K. 10K. Half Marathon by Califlow Runs is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based half marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.
Looking for an easier marathon or a tougher challenge? You can also compare Seasonal Confusion 5K. 10K. Half Marathon by Califlow Runs against other half marathons to find the right race for your goals.
Kailua, United States of America
San Diego, United States of America
Irving, United States of America
Long Beach, United States of America
Charlottesville, United States of America
Wilmington, United States of America