Every child. Thinking critically. Solving problems.


Racing the Sun

Racing the Sun (RTS) is a hands-on, innovative engineering program that challenges high school students to design, build, and race electric and solar-powered go-karts. Racing the Sun is a college preparatory program available to any Arizona high school.   

Working with teachers, mentors and industry professional advisors, students spend nine months preparing for Race Day. Along the way, they apply the principles of physics, engineering, and energy. Through collaborative efforts with school sites and educators, race teams solve real-world problems, using mathematical, analytical, and critical thinking skills. Students work in teams and are challenged to translate their ideas into a working prototype and build leadership excellence skills.

Please contact Rose Prendergast, Racing the Sun Specialist, at with any questions or for more information.

Racing the Sun 2023-2024 Season

View details about the process, projects, registration. Important dates coming soon for the 2023-2024 Season of Racing the Sun. Learn more

Race Day

Racing the Sun culminates in a Race Day at Musselman Honda Circuit, where high school teams from across Arizona race the solar-powered go-karts they engineered and built.

Test Day: April 6, 2024

Time: 9am-3pm

Location: Musselman Honda Circuit at 11800 S Harrison Rd, Tucson, AZ 85747

Race Day: April 27, 2024

Students and Participants: 9am-12pm

General Public: 12-3pm

Location: Musselman Honda Circuit at 11800 S Harrison Rd, Tucson, AZ 85747