Jamie Moe kept the Yakima Valley (15-15) off the board during his seven innings of work and the Walla Walla (14-19) beat the Yakima Valley, 1-0.
Moe struck out five and allowed two walks and four hits.
Kayla Reynolds was effective even in defeat, mowing down six the Walla Walla batters and allowing one run.
Reynolds (10-7) was the game's losing pitcher.