Racing the Sun


Racing the Sun registration is now OPEN! Email for more information!


Racing the Sun (RTS) ©2021 is an exciting science, technology, engineering, and mathematics (STEM) program that challenges high school students to design, build, and race solar-powered go-karts. It is open to all Arizona high schools.

Working with teachers and mentors, students spend nine months preparing for Race Day. Along the way, they apply physics, engineering, and energy. They solve real-world problems, using mathematical, analytical, and critical thinking skills. Students are exposed to working in teams and collaborating on ideas. They are challenged to translate their ideas into a working prototype, and along the way, they build leadership skills



Want an overview? Check out this Handy Fact Sheet

Official Rule Book: Competition Rules 2019-2020 FINAL

Ready to Participate? Email

Want to volunteer on Test Day or Race Day? Email


Is your team registered? You will need to fill out these forms and upload them under your RTS profile:



Racing the Sun School Commitment 2020-21


Presentations from 2019 Workshops Day:

Using Your Solar Panel

Automotive Geometry

Gear Ratios

Safety Course – Musselman Honda

Solar Energy 101

User Friendly Fundraising

Electrical Foundations 101_2019

Under Construction, keep an eye here. When ready, if you are already registered as a site user, please login to join a Racing the Sun team for this year. Otherwise, please register as a new user so you can join.
Login   Register as New User


To support the success of this program, Donate Now


Every Child. Thinking Critically. Solving Problems.