| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | Styskal, Hailey | SR | El Molino | NT | |
| 2 | Hart, Alyssa | JR | Middletown High School | NT | |
| 3 | Shelton, Tess | FR | Casa Grande | 1:11.7h | |
| 4 | Parks, Emma | SO | El Molino | 1:06.98 | Bigcat 2018 |
| 5 | Cathcart, Madison | SO | Casa Grande | 1:10.0h | |
| 6 | Baker, Sabrina | SO | Sonoma Valley High School | 1:12.72 | |
| 7 | Schimansky, Colleen | SR | Middletown High School | NT | |
| 8 | Herrmann, Amy | SR | Middletown High School | NT |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | Winsemius, Chloe | FR | Casa Grande | 59.26 | Big Cat |
| 2 | Evans, Alayna | SR | Sacred Heart Cathedral | 57.30 | K-Bell, 3/10 |
| 3 | Serrano, Audrey | FR | El Molino | 56.94 | Bigcat 2018 |
| 4 | Contreras, Ethel | JR | Piner | 56.4h | Santa Rosa, 3-01-18 |
| 5 | Clark, Morgan | JR | Ukiah High School | 56.75 | |
| 6 | Gutierrez, Xochitl | SR | Ukiah High School | 57.00 | League Meet |
| 7 | Hernandez, Luisa | SO | Rancho Cotate | 58.23 | |
| 8 | Esquivel, Emma | SR | Healdsburg | 59.47 | SR Twilight 2017 |
| Lane | Athlete | Yr. | Team | Seed | Note |
|---|---|---|---|---|---|
| 1 | Stercl, Jessica | JR | Maria Carrillo | 55.00 | |
| 2 | Wild, Allison | JR | Rancho Cotate | 54.03 | |
| 3 | Campbell, Catherine | SR | Tamalpais | 52.33 | MCAL 5/13/17 |
| 4 | Tse, Maia | SO | Sacred Heart Cathedral | 50.27 | K-Bell, 3/10 |
| 5 | Williams, Anika | JR | Santa Rosa | 51.92 | Big Cat March 18 |
| 6 | Okowi, Stephanie | SO | Emery | 53.00 | |
| 7 | Naro, Katie | JR | Rancho Cotate | 54.12 | |
| 8 | Briceno, Kayla | JR | Casa Grande | 55.91 | Big Cat |