Texas Sun Showdown Half Marathon, Relay & 5k
- Date
- June 14, 2026
- Distance
- 4-Person Half Marathon Relay · 2-Person Relay · Half Marathon & more
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:
- Open (All male, all female, or co-ed, any age)
- Masters (All male, all female, or co-ed, ages 40+)
- Super Masters (All male, all female, or co-ed, ages 50+)
- Mixed X (3 female, 1 male, any age)
- Mixed Y (3 males, 1 female, any age)
- Military
Packet Pickup Info:
Pre-Race Packet Pickup-
Friday June 12th 11-5PM IRUN Broadway
Race Day June 14th McAllister Park Pavilion #2 from 6-7:30 AM 13298 Buckhorn Rd, San Antonio, TX 78247
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
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
92°
Typical Low
72°
Chance of Rain
24%
Based on US Climate Normals data from San Antonio Incarnate Word, 2 mi from the venue.
Host City
About San Antonio, TX
Population
1,458,954
as of 2023
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
What Are You
Waiting For?
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.
6
Days to train
- Race
- Texas Sun Showdown Half Marathon, Relay & 5k
- Date
- June 14, 2026
Coming Up
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From Endurance Grid
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.
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.
Running
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)
- What is the Texas Sun Showdown Half Marathon, Relay & 5k?
- Texas Sun Showdown Half Marathon, Relay & 5k is a running race held in San Antonio, Texas on June 14, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Texas Sun Showdown Half Marathon, Relay & 5k?
- Sunday, June 14, 2026 in San Antonio, Texas at McAllister Park-Pavilion #2, San Antonio, TX. Check the event page for exact start times and wave schedules.
- How do I register for the Texas Sun Showdown Half Marathon, Relay & 5k?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Texas Sun Showdown Half Marathon, Relay & 5k
Jun 14, 2026