American Computer Science League

Yes. An ACSL advisor does not have to be a schoolteacher: any teacher, parent or other adult with some CS background can register a team, and afterschool or weekend programs may form teams too. Among Irvine's public high schools, only Portola High School currently fields an ACSL team (the list is above on this page); a student attending that school must compete with it, but students elsewhere can be registered on a separate team by a parent or outside instructor.

The fee is per team: $175 for Senior, Intermediate, Junior and Classroom teams and $125 for an Elementary team, with additional Elementary teams at $100 and further charges for extra teams in other divisions. Students invited to the Finals pay a separate per-student registration fee. Once a team is registered, an unlimited number of students may sit the regular-season contests.

Choose by ability, not just grade. Senior suits high schoolers with programming experience, typically AP CS students. Intermediate is for high schoolers with little or no programming background plus strong middle schoolers. Junior is restricted to grade 9 and below and aimed at students still learning to code. Classroom is open to all grades, has no programming, and fits AP CS Principles classes. Elementary is grades 3-6 and also has no programming. A middle schooler just starting to code usually fits Junior, while one with a stronger programming background can try Intermediate.

For Senior, Intermediate and Junior each contest has two parts: a 30-minute, 6-question short-answer test on announced topics such as number systems, Boolean algebra, recursion, graph theory, bit strings and regular expressions, plus one programming problem with a 72-hour window that may be solved in Python 3, Java or C++. Classroom is a 50-minute, 10-question short-answer test with no programming, and Elementary is 30 minutes and 6 questions on a single topic per contest.

Registration opens on September 1, 2026; the advisor signs in on the ACSL site, creates teams and adds students. The four regular-season contests then open in sequence: Contest 1 from October 19, 2026, Contest 2 from January 4, 2027, Contest 3 from February 1, 2027, and Contest 4 from March 1, 2027. Each stays open for several weeks, and the advisor schedules and proctors within that window.

Invitations go to individuals based on their cumulative score across the four regular-season contests, not on team standing. The published cutoffs are 28 points or more for Junior, Intermediate and Senior, 24 for Classroom and 14 for Elementary; qualifiers are invited to the online Finals in May. This means the first contest matters — points dropped early are hard to make up later.

They are not either-or; stack them. Upper-elementary and middle schoolers build fundamentals in ACSL's Elementary or Junior divisions, then in high school enter Senior while making USACO Silver or Gold the main target. AP Computer Science A at Irvine public high schools overlaps closely with ACSL's short-answer topics, which makes the transition smoother. ACSL's short-answer topics — recursion, bit manipulation, graph theory — are exactly the gaps that stall students at USACO Silver and Gold, and the two schedules largely avoid each other.

ACSL is a broad-participation, team-registered league, so simply taking part carries limited admissions weight. What is distinctive is individual recognition: the certificates for the top scorer in a division in each state or country, and qualifying for and winning awards at the Finals. For an Irvine student ACSL is best framed as foundation-building and continuity of interest, with USACO carrying the weight for UC applications.