| Quarterfinals |  | | 1 | Catherine Cai | Portland, OR |  |  | | 2 | Bye | |  | | 3 | Hannah Hellberg | Philomath, OR |  |  | | 4 | Ashton Johnson | Corvallis, OR |  | | 5 | Monica Down | Corvallis, OR |  |  | | 6 | Bye | |  | | 7 | Bye | |  |  | | 8 | Caroline Garvey | Portland, OR |  | | | Semifinals |  | | C. Cai |  |  | | | | A. Johnson |  | | 6-1; 6-0 | | M. Down |  |  | | | | C. Garvey |  | | | | | Finals |  | | C. Cai |  |  | | 6-0; 6-0 | | C. Cai |  | | 7-5; 6-0 | | C. Garvey |  | | 6-0; 6-3 | |