Micah Co emerged as October's best over her elder sister Misha.
A student of Center of International Education, Micah posted a total of 1,628 pinfalls to claim the top post.
Micah started well, slowed down a bit in games 4 and 5 but was able to recover in the remaining games of the eight-game series.
Misha came out second after toppling 1,565 pins.
Celi Adolfo settled third with 1,563 pinfalls.
The fourth to sixth placers were Alexis Sy with 1,516 pinfalls, Rocci Damole with 1,392 and Xyrra Cabusas with 1,272 pinfalls.