Orange County Chapter

For schools in the following ZIP codes:

90630, 90720, 92600-99, 92700-99, 92800-79, 92881-99

2027 Competition

Date and Location

February 6, 2027
8 a.m. to 3 p.m.

California Baptist University (Van Dyne Gym)
8432 Magnolia Ave.
Riverside, CA 92504

Coordinators

The Orange County Chapter Competition is coordinated by:

Michael Cowan, P.E.
562-618-0032
mdcowan@aol.com

Ken Discenza, PE, DM CSPE
619-540-7462
sitedesign@sda-pe.com

2026 Competition

Results

Date and Location

Saturday, January 31, 2026
8 a.m.

UC Irvine

More details coming soon!

Additional Contacts

If you have questions about the California MATHCOUNTS program in your area, please send a detailed email to CSPEEF Executive Director Heather Caya, at admin@cspeef.org.

If your question requires immediate assistance, please contact the National MATHCOUNTS Office at 703-684-2828 or info@mathcounts.org.

MATHCOUNTS of California is sponsored by:

Edison International

NSPE-California

2025 Competition

Date and Location

Saturday, February 15, 2025
8 a.m.

UC Irvine

2024 Competition

Advancing Students

For the Orange County Chapter in 2024, members of the top five teams and the top five finishers NOT on an advancing team advance to the Southern California State Competition.

Team/
Ind.		 Student School
Coach
Team 1 Alvin Chen Rancho San Joaquin Middle School
Sarah Armstrong
Team 1 Terry Huang Rancho San Joaquin Middle School
Sarah Armstrong
Team 1 Ethan Mak Rancho San Joaquin Middle School
Sarah Armstrong
Team 1 Anish Varada Rancho San Joaquin Middle School
Sarah Armstrong
Team 2 Eric Ke Tarbut V’Torah Day School
Calvin Pham
Team 2 Zion Qu Tarbut V’Torah Day School
Calvin Pham
Team 2 Raymond Shi Tarbut V’Torah Day School
Calvin Pham
Team 2 Summer Zhang Tarbut V’Torah Day School
Calvin Pham
Team 3 Rohit Dutta Ladera Ranch Middle School
Tricia Humphreys
Team 3 Claire Huang Ladera Ranch Middle School
Tricia Humphreys
Team 3 Andrew Lin Ladera Ranch Middle School
Tricia Humphreys
Team 3 Jim Xiao Ladera Ranch Middle School
Tricia Humphreys
Team 4 Kevin Li Sierra Vista Middle School
Heather Trueman
Team 4 Michael Wang Sierra Vista Middle School
Heather Trueman
Team 4 Lucas Wei Sierra Vista Middle School
Heather Trueman
Team 4 Hansong Zhu Sierra Vista Middle School
Heather Trueman
Team 5 Zehao (Victor) Li Jeffrey Trail Middle School
Brian Tran
Team 5 Ryan Lu Jeffrey Trail Middle School
Brian Tran
Team 5 Dean Perez Jeffrey Trail Middle School
Brian Tran
Team 5 Ella Wang Jeffrey Trail Middle School
Brian Tran
Ind. Max Sachelarie-Sandhu Non-school Competitor
Ind. Neil Iyer Santiago Hills Elementary School
Ind. Donald Cao Rancho San Joaquin Middle School
Sarah Armstrong
Ind. Jiayou Carl Lin Rancho San Joaquin Middle School
Sarah Armstrong
Ind. Albert Zhang Rancho San Joaquin Middle School
Sarah Armstrong

2023 Competition

Advancing Students

For the Orange County Chapter, members of the top four teams and the top six finishers NOT on an advancing team will advance to the Southern California State Competition.

Team/
Ind.		 Student School
Coach
1 Timothy Chen Rancho San Joaquin Middle School
Sarah Armstrong
1 Michael Jian Rancho San Joaquin Middle School
1 Alex Kong Rancho San Joaquin Middle School
1 Edward Zhang Rancho San Joaquin Middle School
2 Zion Qu Tarbut V’Torah Day School
Rick Thompson
2 Xander Shah Tarbut V’Torah Day School
2 Jason Zhang Tarbut V’Torah Day School
2 Summer Zhang Tarbut V’Torah Day School
3 Michael Ahn Jeffrey Trail Middle School
Staci Birchler
3 Ryan Lu Jeffrey Trail Middle School
3 Natalie Song Jeffrey Trail Middle School
3 Allen Tang Jeffrey Trail Middle School
4 Hanyu Huang Sierra Vista Middle School
Heather Trueman
4 Brooke Li Sierra Vista Middle School
4 Virat Varada Sierra Vista Middle School
4 Bowen Wu Sierra Vista Middle School
Ind. Max Sachelarie-Sandhu Non-School Competitor
Ind. Joseph Baek Non-School Competitor
Ind. Kevin Li Sierra Vista Middle School
Heather Trueman
Ind. Aiden Shin Oxford Academy
Zongwen Feng
Ind. Eugene Dai Turtle Rock Elementary School
Zhaoxia Yu
Ind. Brandon Shen Turtle Rock Elementary School

Recent Donations

Donations

2026

$1,500 — Department of Defense STEM Grant

2025

$50 — Venu Vollala

How to Donate

MATHCOUNTS of California relies on local donations to run chapter competitions. Please help us grow the appreciation of math and problem solving among California middle school students. For a donation to benefit the entire state, click here.

To donate by check, please make the check out to:

MATHCOUNTS of California
1104 Corporate Way
Sacramento, CA 95831

Please put the competition name in the memo line.

A receipt will be sent to the address on the check.