
Saturday, December 12, 2026 · 6:00 AM · San Diego, California
The Improve Every Day Half Marathon
Half Marathon in San Diego, CA · $25-$45 · ~1,000 runners
The Improve Every Day Half Marathon is built around one idea: every mile out there is proof of what you’re capable of. This December 12th in San Diego, we’re bringing that to life on a looped course where every lap shows you how far you’ve come.
Half marathon runners will complete just over 3 laps. Each time you come back around you’ll feel the crowd, feed off the energy, and find out what you’re truly capable of. The loop format means you’re never alone out there and the support never stops.
Not ready for 13.1? Run the 4 miler instead. It’s one full lap of the same course, a shorter way to be part of the day and see what you can do.
Whether you’re running your first half, lining up for your first race, or chasing a new PR, you’re out there with people who get it. People who showed up for themselves the same way you did.
Prices go up as we approach race day:
October 1-31: $45 November 1-14: $55 November 15-21: $65 November 22-29: $75
What's included:
- lùth finisher shirt
- Hydrations Stations on course
- Loop-style race
- Post-race hang out
Register now and see how much you are capable of improving!
- Time limit
- No time limit listed by the organizer
- Walkers
- Not mentioned — ask the organizer
- Terrain
- Not stated
- Certified
- Not stated
Pulled from the organizer's own race description — per the organizer, not independently verified.
Ready to sign up?
Similar races
Browse allSun, Dec 6, 2026 · 7:30 AM · Long Beach, California
Jingle Bell Jog – 5K, 10K, 10-Miler, Half Marathon
Sun, Dec 6, 2026 · 8:00 AM · Long Beach, California
Merry Miles- 5K, 10K, and Half Marathon by Califlow Runs
Source
Race details on this page come from RunSignup.
Race details can change and mistakes can be made. Always verify the race website for the most complete and accurate information. Report an error on this page.
Are you the race organizer? Request this listing be removed.
The Improve Every Day Half Marathon
Sat, Dec 12, 2026 · $25-$45


