21 miles in 21 days
About this race
Join the Challenge!
"21 for 21"
Walk/Run 21 miles, in honor of the twenty-one lives robbed.
This May marks four years since our loved ones were murdered in their classrooms at Robb Elementary in Uvalde, TX, robbing the world of their light and their impact. Starting May 1st, we will be honoring the 21 by running/walking 21 miles in 21 days.
Every step we take honors the 19 children and two educators who were full of life and dreams. We run to remember: Alexandria "Lexi" Aniyah Rubio, Alithia Haven Ramirez, Amerie Jo Garza, Annabell Guadalupe Rodriguez, Eliahna "Ellie" Amyah Garcia, Eliahna Cruz Torres, Eva Mireles, Irma Linda Garcia, Jacklyn "Jackie" Jaylen Cazares, Jailah Nicole Silguero, Jayce Carmelo Luevanos, Jose Manuel Flores Jr., Layla Marie Salazar, Makenna Lee Elrod Seiler, Maite Yuleana Rodriguez, Maranda Gail Mathis, Nevaeh Alyssa Bravo, Rojelio Fernandez Torres, Tess Marie Mata, Uziyah "Uzi" Sergio Garcia, Xavier James Lopez
Please join us in honoring these 21 lives.
Remember: Take a moment today to honor the joy these 21 individuals brought to the world.
Pick your distance
Running
21 miles in 21 days Challenge
Typical race-day weather
Based on 6 years of historical conditions on this event's race dates in San Antonio.
Course
Route map and elevation profile
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
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🏃 Plan Your Next Race in San Antonio
Find upcoming events by distance:
- San Antonio 5K Races 177 races
- 10K Run Events in San Antonio 80 races
- San Antonio Half Marathons 56 races
- San Antonio Running Calendar 2026 211 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 225 San Antonio events
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