Jeremy Bonderman allowed five runs in the first inning and the Rainiers could never recover, losing 5-3 to the Salt Lake Bees
Brad Miller had three hits as Jackson snapped a five-game losing streak.
High Desert picked up an 8-2 win.
Class A Clinton got a great outing from starter Dylan Unsworth and rolled to a win.
Digital Access for only $0.99
For the most comprehensive local coverage, subscribe today.