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| Black Mountain Middle School | B | 5 | | SDSO | Poway Unified | CA |
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| Carmel Valley Middle School | B | 3 | | SDSO | San Dieguito Union High School District | CA |
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| Design39 Campus | B | 2 | 2 | SDSO | Poway Unified School District | CA | |
| Gardner Middle School | B | 2 | | SoCal Joint Regional | Temecula Valley Unified School District | CA | |
| Jeffrey Trail Middle School | B | 4 | | Orange County Regional | Irvine Unified School District | CA | |
| Kennedy Middle School | B | 6 | | Santa Clara County Regional Science Olympiad | Cupertino Union School District | CA |
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| Kraemer Middle School | B | 4 | 4 | Orange County Regional | Placentia Yorba Linda Unified | CA |
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| Marshall Middle School | B | 8 | | SDSO | San Diego Unified School District | CA | |
| Oak Valley Middle School | B | 8 | | SDSO | Poway Unified School District | CA |
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| Pacific Trails Middle School | B | 6 | 6 | SDSO | San Dieguito Union High School District | CA |
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| Rancho San Joaquin Middle School | B | 2 | 2 | Orange | Irvine Unified | CA | |
| Sierra Vista Middle School | B | 5 | | Orange County | IUSD | CA |
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| Vail Ranch Middle School | B | 2 | | | Temecula Valley Unified School District | CA | |