| K-12 | K-8 | K-5 | K-3 | K-1 | |
| 2023 | |||||
| 2019 | |||||
| 2018 | Liam Hereford | Connor Zhang | Andrew Zhang | Arjun Nalladimma | Vijay Kannan |
| 2017 | Brian Wright Ruchira Udara Sumanasekera Ryan Zou | Liam Hereford | Robert Hymes | Vallabh Ramesh | Eli Dropic |
| 2016 | Josiah Hereford Matthew McDonald | Tamm Omar | Connor Zhang | Andrew Zhang | Caleb Marshall |
| 2015 | Taylor Bagley | Vindu Dinal Godage Garrett Wright | Connor Zhang | Oliver Noth | Caleb Marshall |
| 2014 | Taylor Bagley | Spencer Kriss | Tamm Omar | Jasper Meadows Arman Dashti | Abdul Shaik |
| 2013 | Gilman Bagga | Spencer Kriss | Sean Patrick Harris | Max Roberts Noah Evan Katz Akhil Venkat Rokkam Iman Dashti Ayush Kumar Jasper Meadows | Mikhail Kovalev |
| 2012 | Taylor Bagley | Stevan Kriss | Grace Bagga | Sean Harris | Tommy Kolb |
| 2011 | Alex Hamilton | Gilman Bagga Taylor Bagley Matthew McDonald Stevan Criss Carson Crovo | Spencer Criss Ian Schaeffer | Brian She | Max Roberts |
| 2010 | Alex Hamilton | Andrew Lipman | Alex Koby Brian Wright Matthew McDonald Carlos Labianca | Garrett Wright Dylan Lipman | Tamm Omar |
| 2009 | Nicholas Burnett | Taylor Bagley Andrew Lipman | Gilman Bagga | Spencer Kriss | David Perchick |
| 2008 | Atanas Golev Alex Hamilton Sanny Omar Joshua Osbourn Erik Patchell | Tim Tootle | Stevan Kriss | Spencer Kriss | Dawson Lipman |
| 2007 | Todd Whitehouse Erik Patchell | Shray Kapoor | Andrew Lipman | Gilman Bagga Stevan Kriss Taylor Bagley Justin Stevens David Hendren | Spencer Kris |
| 2006 | Erik Patchell | Dima Ivanyuk Will Bryant Atanas Golev | Vivek Raj Aravind SubramanianJohn Marcsik | Alice Li | Spencer Kriss |
| 2005 | Davis Whaley | Todd Whitehouse | Sumeer Brar | Jonah Donze Bobby Buse II | Camden Penn |
| K-12 | K-9 | K-6 | K-3 | |
| 2004 | Davis Whaley Robert Walker John Ruhl Tyler Klein | Erik Patchell | Alex Hamilton Michael Robb Dima Ivanyuk Phil Jeon Will Bryant Darren Hou David Wang | John Marcsik Alice Li Joshua Finke |
| 2003 | Oleksandr Lozitskiy Ryan Velez | Blake McCuiston | Allan Tao | Michael Worthington Darren Hou Zack UhlenhuthAaron Berg |
| 2002 | Ryan Velez | Garrett Wilburn | Joel Lowery Chess Volp | Sanny Omar David Roach Michael Robb |
| 2001 | Sergey Shchukin | Davis Whaley | Joel Lowery | Knox Anderson |
| 2000 | Sergey Shchukin | Charley Seelbach | Gary Smith Blake McCuiston | Jordan Furtkamp Doug Deptola |
| 1999 | Gabriel Popkin Sergey Shchukin | Justin Cooper Wes Mattingly Charley Seelbach Jeremy Stapezynski | Gary Smith Garret Wilburn | Adam Laetsch Chess Volp |
| 1998 | John Glauber Satish Goud Kenny Jensen Gabriel Popkin | Justin Cooper Yohan Herman Wes Mattingly Jeremy Stapezynski Evan Wright | Timothy Kast | Blake McCuiston Chess Volp |
| 1997 | Ehrin Dorsey | Sergey Shchukin | Danielle Chilton Timothy Kast | Nathabn Crafton Gary Smith |
| 1996 | Ehrin Dorsey Jamie Myrick | Sergey Shchukin | Elliot Fleming G. Bowen Simpson | Blake McCuiston Michael Poindexter |
| 1995 | John Foster Joshua Price | Joseph Bell Adam Goldstein Satish Goud Sergey Shchukin | Elliot Fleming | Alex Goodpaster Timothy Kast |
| 1994 | Aaron Wenger | Joshua Price | Satish Goud Mark Wagner | David Breeding Sean Clemson Michael Stanley |
| 1993 | Aaron Wenger | Gabriel Popkin | Joseph Bell Satish Goud | Sean Clemson |
| 1992 | Aaron Wenger | Chris Caskey Joshua Price | Gerran Cook Mark Stockton | Boris Kaidanov Payam Mohseni |
| 1991 | Brad Skaggs | Aaron Wenger | Joshua Mitchell Joshua Price | Stephen Jones |
| 1990 | Charles Campbell | Aaron Wenger | Joshua Price | Stephen Breeding |
| 1989 | ||||
| 1988 | Scot Morison | Charles Campbell Peter Johnson | Haggai Elitzur | Martin Christenson |
| 1987 | James Viele Scot Morison | Sanjah Khiani Tony McMannus Johnathan Hernandez Brad Skaggs Edison Garrick | Daryl Lee Martin David Chu Matt Johnson | Rebecca Brown |
| 1986 | John Coghill | |||
| 1985 | Larry Foushee | |||
| 1984 | Matthew Nelson | |||
| 1983 | Chris Behr | |||
| 1982 | Matthew Nelson | |||
| 1981 | Mike Wilson | |||
| 1980 | Donald Tobias |