The Tacoma (39-7) and the Pierce (28-13) both threatened with rallies, but it was the Tacoma that eventually took advantage of them in a 4-2 win at David Story Field.
Chris Kerwood pitched six innings and allowed two earned runs, five hits and no walks while striking out two.
Despite the loss, the Pierce's Cole Uvila dominated the Tacoma's batters, giving up two runs and striking out 10.
Patrick Bernard improved to 6-1 on the year by picking up the win for the Tacoma. He struck out one, walked three and surrendered one hit.
Matt Fish (2-3) took the loss for the Pierce. He lasted just one inning, walked one, struck out one, and allowed two runs.