
From the Organizer
The SYTY Half Marathon is built around one idea: every day is an opportunity to be better than you were yesterday. This September in San Diego, we're bringing that to life on a 4.1-mile loop course where every lap is a chance to prove to yourself 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.
What's included:
Performance finisher shirt
Water stations on course
Electrolyte stations
4.1-mile loop style race
Early bird pricing is open now. Register today and take the first step toward your best race yet. Better yourself starts here.
Events
Weather
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
78°
Typical Low
67°
Chance of Rain
3%
Based on US Climate Normals data from San Diego Lindbergh Fld, 3 mi from the venue.
Host City
Population
1,385,061
as of 2023
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
Your Next Start Line
Every finish line starts with a single decision. Claim your spot at The Syty Marathon, put it on the calendar, and turn “someday” into a start date.
Coming Up
Root Beer and Braids
Less than a mile away
Sunset Escape Cruise
Less than a mile away
Great Navy Camp Out VOLUNTEER Opportunity
Less than a mile away
Seana's twenty5K Birthday Run
Less than a mile away
From Endurance Grid
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.
The half marathon is the distance where you find out what you're actually made of. Long enough to demand real preparation. Short enough that it doesn't consume your life to train for it. Most people who run their first half describe it as the race that changed their relationship with what they're capable of. Once you cross this finish line, the bar moves. That's not a warning — that's the point.
Race day energy varies by event size, but the finish line feeling is the same regardless. Big races keep the noise going the whole way. Smaller races give you stretches where it's just you and the miles — and that solitude becomes its own kind of fuel.
The half marathon rewards people who show up for the boring training miles.
How long to train: 10–14 weeks. If you're already running consistently, 10 weeks of structured buildup is enough. If you're building from a casual base, give yourself 14.
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
The Syty Marathon
Sep 12, 2026