
Texas Sun Showdown Half Marathon, Relay & 5k is a running race on June 13, 2027 in San Antonio, TX, with entry fees from $40 to $88.
From the Organizer
We invite you to join us for the 3rd AnnualTexas Sun Showdown Half Marathon, Relay & 5k
Three great options: Want a challenge? Run the Half Marathon. Want to get a team together to relay? Grab your friends, find your team shirts or costumes! You can also run the 5K solo. Participants receive a Texas finisher medal, an awesome Texas theme shirt and delicious Texas barbecue food post race.
TIME LIMIT FOR THE HALF MARATHON IS 4 HOURS.
Relay Info:
You will be prompted to join an existing Relay Team or create a new Relay Team during the registration process. Registration fee is a per person fee. All team members must register separately.
Relay Categories:
Schedule of Event
7:15AM HALF MARATHON AND 2-PERSON RELAY START
7:20AM 4-PERSON RELAY START
7:30AM 5K START
8:30AM 5K AWARDS
9:45AM RELAY 1/2 MARATHON AWARDS
10:00 AM HALF-MARATHON AWARDS
Race Routes: Half Marathon and 2-person relay (half marathoners will complete 2 loops) See Route Here
4-person relay route: See Route Here
The Virtual Texas Sun Showdown 5K and Half Marathon are races that you can run or walk from any location and route. You get to run your own race, at your own pace, and time it yourself.
Signup, download and print your race bib, complete the run and submit your results.
When you submit your time, you will also be able to download, print and/or share your Finisher's Certificate.
Complete your race and submit your results between: June 15, 2026 12:00am- June 30, 2026 11:59pm
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
92°
Typical Low
73°
Chance of Rain
24%
Based on US Climate Normals data from San Antonio Intl Ap, 5 mi from the venue.
Host City
Population
1,458,954
as of 2023
City Elevation
781 ft
Nearest Airport
SAT
San Antonio International Airport · 5 mi
Time Zone
Central 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 Texas Sun Showdown Half Marathon, Relay & 5k, put it on the calendar, and turn “someday” into a start date.
325
Days to train
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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.
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.
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.
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Plan your trip
Coming from out of town? There's more to San Antonio than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.
Plan your trip to San AntonioFrequently Asked Questions (FAQs)
Texas Sun Showdown Half Marathon, Relay & 5k
Jun 13, 2027