Bainbridge defeated Seattle Prep 3-1 to clinch the third seed in the Metro Mountain division.
Bainbridge (4-3-3) will host Chief Sealth in a Metro playoff match Thursday.
Halee Baker gave the Spartans the early lead with a goal in the 37th minute. In the second half, Melissa Hoshizaki added another score before Seattle Prep’s Emily Eckman put the Panthers on the board in the 55th minute.
Bainbridge’s Bryton Wildsmith scored in the 75th minute for the 3-1 lead.