Alamo City Electrathon

What is the ACE Race?

The mission of the Alamo City Electrathon (ACE) is to foster and encourage partnerships between educational institutions and industry partners. The ACE Invitational was created as an academic opportunity for student programs in high school and community colleges. Our vision is to generate excitement and awareness of vocational opportunities associated with Science, Technology, Engineering, and Math (STEM), by offering students in our region a real-world, hands-on learning experience like no other, we are bringing STEM home to the future workforce of America.

The ACE Invitational was started in 2017 with 6 high school teams participating. By 2019, ACE doubled in participation welcoming teams from across the region including Boerne, Lytle, Northside ISD, San Antonio College, and St. Phillip’s College. In 2021, SoTx was pleased to host ACE at the Alamodome with 20 registered teams from Texas and Louisiana.


Team Registration Information

Electrathon is a combination of the words Electric and Marathon. Electrathon is a one-hour endurance event for single-passenger electric-powered cars using no more than 73lb of lead-acid batteries.

The Alamo City Electrathon (ACE Race Invitational) is a National Sanctioned Electrathon Event with Electrathon America, one of twelve in the nation. This event is exclusive to students enrolled in academic institutions with a STEM/CTE curriculum. Teams are required to abide by the rules and regulations in the Electrathon America Handbook and ACE addendum.

Teams will go through a series of electrical, mechanical, driver, and dynamic inspections the Friday before race day. On race day teams will participate in two one-hour races, and the team with the most laps combined from the two races wins.  ACE Race will take place on April 21-22, 2023, at the Freeman Expo Hall.

Schools are required to register student participants per team. Teams must be composed of at least 10 students grades 9th-12th and an Academic Advisor. We encourage teams to establish their own “booster” fundraising bank accounts to avoid delays associated with government procurement spending processes.

A Letter to Team Advisors

Greetings ACE advisors,

I will be working with Forrest Hawthorn, Frances Trejo, Art Olson and the team from the South Texas Business Partnership to provide a safe, fair and successful ACE 2023.

The event will be held April 21 and 22 at the Freeman Coliseum. It will be an outdoor event using the parking lot. The exact size and layout of the course will be available next month.

Major changes will be the classes for the event. First year schools will have a rookie class. This class will be for kit cars built by new schools only.

There will be a 24 volt class, it will allow any changes to cars that meet Electrathon America rules.  It is hoped that this will inspire students to experiment.

The open class will allow cars with high voltage systems to take advantage of the performance improvement. Those cars will receive major scrutineering to make sure the vehicles and the teams meet the higher level of safety required for high voltage.

All Cars participating in the ACE will be required to have approved roll cages. This supersedes Electrathon America requirements. Drawing and pictures of the roll cage must be approved by ACE before scrutineering.

All teams must have current Electrathon America registration.


Robert Franz

2022/2023 Curriculum Timeline

Helpful Links/Resources

If your school is interested in being a part of this rewarding, hands-on program and is committed to the mission and vision of the ACE race, please fill out the intent to compete form and stay engaged through this website.

Corporate Sponsorship Information

The Alamo City Electrathon offers six levels of sponsorship (title, platinum, gold, silver, bronze, and friend). We welcome monetary and in-kind donations. The Alamo City Electrathon would like to thank you in advance for your support and enthusiasm for empowering students of the San Antonio area to pursue STEM experiences and careers.

Benefits of sponsorship at each of the six levels are outlined in the following Sponsors Guide (Click Here).

Click Here To Register for Corporate Sponsorship

Mail or Email Forms can be sent to: 
South Texas Business Partnership
3315 Sidney Brooks Drive, #200, San Antonio, TX 78235