CSBC Championships - 4A/6A Semi Finals
Saturday, November 10, 2018 - Irvine HS - Hosted by Woodbridge HS
| Group Name | Class | Perform | Band Gate Time | Pit Gate Time |
| Coachella Valley High School | 4A | 10:00 AM | 9:52 AM | 9:45 AM |
| Santa Fe High School | 4A | 10:15 AM | 10:07 AM | 10:00 AM |
| Serrano High School | 4A | 10:30 AM | 10:22 AM | 10:15 AM |
| Grand Terrace High School | 4A | 10:45 AM | 10:37 AM | 10:30 AM |
| Citrus Valley High School | 4A | 11:00 AM | 10:52 AM | 10:45 AM |
| Redlands High School | 4A | 11:15 AM | 11:07 AM | 11:00 AM |
| Brea Olinda High School | 4A | 11:30 AM | 11:22 AM | 11:15 AM |
| BREAK | 11:45 AM | |||
| Costa Mesa High School | 4A | 12:00 PM | 11:52 AM | 11:45 AM |
| Western High School | 4A | 12:15 PM | 12:07 PM | 12:00 PM |
| Oak Hills High School | 4A | 12:30 PM | 12:22 PM | 12:15 PM |
| Fontana High School | 4A | 12:45 PM | 12:37 PM | 12:30 PM |
| Bell Gardens High School | 4A | 1:00 PM | 12:52 PM | 12:45 PM |
| Huntington Beach High School | 4A | 1:15 PM | 1:07 PM | 1:00 PM |
| Herbert Hoover High School | 4A | 1:30 PM | 1:22 PM | 1:15 PM |
| AWARDS - 4A | 2:00 PM | |||
| Kaiser High School | 6A | 5:30 PM | 5:22 PM | 5:15 PM |
| Troy High School | 6A | 5:45 PM | 5:37 PM | 5:30 PM |
| Schurr High School | 6A | 6:00 PM | 5:52 PM | 5:45 PM |
| California High School | 6A | 6:15 PM | 6:07 PM | 6:00 PM |
| Redondo Union High School | 6A | 6:30 PM | 6:22 PM | 6:15 PM |
| BREAK | 6:45 PM | |||
| Walnut High School | 6A | 7:00 PM | 6:52 PM | 6:45 PM |
| Cathedral City High School | 6A | 7:15 PM | 7:07 PM | 7:00 PM |
| South Torrance High School | 6A | 7:30 PM | 7:22 PM | 7:15 PM |
| Mayfair High School | 6A | 7:45 PM | 7:37 PM | 7:30 PM |
| Woodbridge High School | 6A | 8:00 PM | 7:52 PM | 7:45 PM |
| AWARDS - 6A | 8:30 PM | |||