May 2, 2018
| Date: 5/2/18 | ||||
| Location: Main Beach | ||||
| Position | Cabrillo | Foothill | Winner | Score |
| 1 | Mari Molina | Jami Maffei | (Cabrillo) | 21-10, 21-11 |
| Alex Bol | Fiona Green | |||
| 2 | Hayley Hall | Brooke Smith | (Cabrillo) | 21-14, 21-9 |
| Deirdre Wilson | Ivy Johnson | |||
| 3 | Paige Schieferstein | Hannah Fields | (Cabrillo) | 21-14, 21-15 |
| Kylie Kvam | Katie Wilcox | |||
| 4 | Kendra Lis | Meleina O'Rourke | (Cabrillo) | 21-11, 21-12 |
| Alena Fernandez | Iris Calderon | |||
| 5 | Jolie Samuelson | Amber Lao | (Cabrillo) | 21-9, 21-15 |
| Ellie Cary | Mel Baron | |||
| Date: 5/2/18 | ||||
| Location: Main Beach | ||||
| Position | West Valley | Foothill | Winner | Score |
| 1 | Mapuhola Sekona | Jami Maffei | (Foothill) | 21-17, 21-17 |
| Emma Blockhus | Fiona Green | |||
| 2 | Morgan Wright | Brooke Smith | (West Valley) | 21-16, 21-6 |
| Kaylin Henderson | Ivy Johnson | |||
| 3 | Kristen Hayes | Hannah Fields | (West Valley) | 21-15, 21-13 |
| Claire Danna | Katie Wilcox | |||
| 4 | Hunter Roberts | Meleina O'Rourke | (Foothill) | 21-14, 17-21, 15-13 |
| Katrina Hochmuth | Iris Calderon | |||
| 5 | Lizhya Shoomoonof | Amber Lao | (Foothill) | 17-21, 21-18, 15-8 |
| Liz McGrath | Mel Baron | |||
| Date: 5/2/18 | ||||
| Location: Main Beach | ||||
| Position | Cabrillo | West Valley | Winner | Score |
| 1 | Mari Molina | Mapuhola Sekona | (Cabrillo) | 21-13, 21-13 |
| Alex Bol | Emma Blockhus | |||
| 2 | Hayley Hall | Morgan Wright | (West Valley) | 21-19, 18-21, 15-10 |
| Deirdre Wilson | Kaylin Henderson | |||
| 3 | Paige Schieferstein | Kristen Hayes | (Cabrillo) | 21-10, 21-19 |
| Kylie Kvam | Claire Danna | |||
| 4 | Kendra Lis | Hunter Roberts | (Cabrillo) | 21-17, 21-14 |
| Alena Fernandez | Katrina Hochmuth | |||
| 5 | Jolie Samuelson | Lizhya Shoomoonof | (Cabrillo) | 22-20, 21-12 |
| Ellie Cary | Liz McGrath | |||