California MATHCOUNTS announced teams that finished in the top 40% and individuals who finished in the top 25%. Ridgecredit Middle School is the Southern California section winner and Redwood Middle School is the Northern California section winner. Kevin Yang, Tonny Ho, Jim Li and Rolland Wu will represent California to compete at the National MATHCOUNTS.

The Mathematical Association of America published the students who received perfect scores on the AMC 10 and AMC 12. Andrew Lee of Northwood High School in Irvine, Orange County and Vincent Le of San Diego Math Circle are among 59 American high school students who received perfect marks.