The Improve Every Day Half Marathon
The Improve Every Day Half Marathon is a running race on December 12, 2026 in San Diego, CA, with an entry fee of $45.
- Date
- December 12, 2026 (79 days to go)
- Price
- $45
- Sport
- Running
From the Organizer
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.
Whether you're running your first half 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.
Field is capped at 1,000 runners. Price goes up as spots fill:
Spots 1–250: $45
Spots 251–500: $55
Spots 501–750: $65
Spots 751–1,000: $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!
Events
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
66°
Typical Low
50°
Chance of Rain
18%
Based on US Climate Normals data from San Diego Lindbergh Fld, 2 mi from the venue.
About San Diego, CA
Population
1,385,061
as of 2023
City Elevation
352 ft
Nearest Airport
SAN
San Diego International Airport · 3 mi
Time Zone
Pacific Time
From Endurance Grid
A big city race. Expect multiple lodging options and plenty to do the day before.
Race Location
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at The Improve Every Day Half Marathon, put it on the calendar, and turn “someday” into a start date.
79
Days to train
- Race
- The Improve Every Day Half Marathon
- Date
- December 12, 2026
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About This Sport
Endurance Grid is here to help you understand the sport, decide if it’s the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
Running
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
More Running races near San Diego, CA
Frequently Asked Questions
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The Improve Every Day Half Marathon
Dec 12, 2026