Grade: Senior
School: CVCHS
Sport: Track & Field

CONCORD, CA (May 28, 2025) — Current Diablo Athletic League champion and USA Track and Field honorable mention thrower Jeffress has an impressive work ethic and a kind presence off and on the track.

She joined Clayton Valley Charter’s track and field team in her freshman year with no prior throwing experience and, in just four years, has risen to the top. Prior to her throwing career, Jeffress competed in both swimming and volleyball for CVCHS, but a devastating injury took her out and pushed her to pursue throws full-time. She had been swimming since age four, so letting go was a tough decision. However, it paid off. She has thrown for Ugly varsity all four years and earned first team DAL and North Coast Section her sophomore and junior years.

Jeffress also competed at the USA Track and Field Junior Olympics in the hammer throw her junior year, moving up 13 places to finish ninth overall, which earned her USATF honorable mention. This year, she continues to achieve, and she just won DAL shot put and discus with more post-season meets to come.

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Her coach Katie Jackson reflects, “Thea is one of the most driven and coachable athletes I’ve ever worked with. She has this rare ability to absorb feedback and immediately apply it, often in the same rep. What sets her apart isn’t just her strength or technique, but her quiet leadership and how much she genuinely cares about her teammates. She has raised the standard in our program, and I know she will do the same at the next level.”

In addition to CVCHS, Jeffress competes for the Golden State Throwers, a club team out of Sacramento. Jeffress also works hard in the classroom, maintaining a 3.9 weighted GPA and holding memberships in the school’s Engineering and Design Academy, Women in STEM, Women in Engineering and Senior Women. She is also a member of the National Society of High School Scholars. Jeffress is excited to attend Fresno State University this fall to study business and continue her throwing at the D1 level.

The Pioneer congratulates Thea and thanks Athlete Spotlight sponsors Dr. Laura Lacey & Dr. Christopher Ruzicka who have been serving the Clayton and Concord area for over three decades at Family Vision Care Optometry.

Do you know a young athlete who should be recognized? Perhaps he or she has shown exceptional sportsmanship, remarkable improvement, or a great heart for the sport. Send your nomination for the Pioneer Athlete Spotlight today to sports@pioneerpublishers.com.

Corinne Jeandheur

Corinne Jeandheur is a senior at Clayton Valley Charter High School.  She runs on the CVCHS cross country team in the fall as well as competing on the track and field team in the spring.  She also plays the piano and bakes in her free time.  Jeandheur is a member of the CVCHS Engineering and Design Academy and concluded her sophomore year with a 4.33 GPA.  She is serving as co-president of the California Scholarship Federation at Clayton Valley Charter this school year and continuing her academic and community involvement in the National Honor Society. She is very pleased to be writing the monthly Athlete Spotlight for the Pioneer.