The top 30 participants in the open round of NACLO 2009
| ID | FNAME | LNAME | CONTEST SITE | CITY | STATE | NOTE |
| 1105 | Tian-Yi | Jiang | North Carolina School of Science and Math | Durham | NC | |
| 37 | Morris | Alper | Stanford University | Stanford | CA | |
| 638 | Kyumin | Lee | Brandeis
University | Waltham | MA | Best solution (tie), problem C |
| 487 | Panupong | Pasupat | Deerfield Academy | Deerfield | MA | |
| 770 | Guy | Tabachnick | New York University | New York | NY | Best solution (tie), problem E |
| 31 | Rebecca | Jacobs | USC/ISI | Marina del Rey | CA | |
| 473 | Jessica | Hwang | Hickman High School | Columbia | MO | |
| 1288 | Ben | Sklaroff | Stanford University | Stanford | CA | |
| 45 | Andrew | Peters | Minnesota State
University | Mankato | MN | Best solution (tie),
problem E |
| 354 | Alexander | McCabe | North Carolina School of Science and Math | Durham | NC | |
| 760 | Hyung min | Kim | Upper Dublin High School | Fort Washington | PA | |
| 1181 | Daniel | Koning | HS | Dallas | TX | |
| 512 | Maxim | Sigalov | University of
Illinois | Urbana-Champaign | IL | Grade 8 top participant! |
| 167 | Alan | Huang | Detroit Country Day School | Beverly Hills | MI | |
| 209 | Allen | Yuan | Detroit Country Day School | Beverly Hills | MI | |
| 1049 | Matthew | Klein | New York University | New York | NY | |
| 294 | Casey | Mihaloew | Thomas Jefferson High School for Science and Technology | Alexandria | VA | |
| 490 | Catherine | Chan-Tse | Brandeis University | Waltham | MA | |
| 1269 | Daniel | Li | Thomas Jefferson High School for Science and Technology | Alexandria | VA | |
| 668 | Andrew | Zhou | San Jose State University | San Jose | CA | |
| 1019 | Vikram | Nathan | San Jose State University | San Jose | CA | |
| 207 | Drew | Reisinger | Signature School | Evansville | IN | |
| 350 | Tom | Roberts | Arapahoe High School | Centennial | CO | |
| 984 | Pavel | Panchekha | Bergen County Academies | Hackensack | NJ | |
| 195 | Evan | Leibowitz | North Hollywood | North Hollywood | CA | |
| 34 | Hanzhi | Zhu | Brandeis University | Waltham | MA | |
| 40 | Anand | Natarajan | San Jose State
University | San Jose | CA | Best solution,
problem D |
| 246 | Andrew | Kahn | Bergen County Academies | Hackensack | NJ | |
| 306 | Jeffrey | Lim | Brandeis University | Waltham | MA | |
| 628 | Aparna | Ananthasubramaniam | International Academy | Bloomfield Hills | MI | |
Other prizes:
Problems A and B didn't have a best solution award
Best solution to problem C: Kyumin Lee
Best solution to problem C: Alexa Little
Best solution to problem D: Anand Natarajan, San Jose State University, San Jose, CA.
Best solution to problem E: Andrew Peters
Best solution to problem E: Harris Karsch
Best solution to problem E: Paul Handorff
Best solution to problem E: Guy Tabachnick
Best solution to problem F: Constantine Kifalu, Wayzata HS, Plymouth MN.
The top 5 eight graders or younger (all these have also qualified
for the second round:
Maxim Sigalov, University of Illinois, Urbana-Champaign, IL
Ravi Jagadeeshan, University of Illinois, Chicago, Chicago, IL
Eric Schneider, Princeton University, Princeton, NJ
Aaron Klein, Brandeis University, Waltham, MA
Emily Tang, University of Texas at Dallas, Dallas, TX