Helena (31-12) scored in eight of a possible 10 innings, totaling 27 hits in the doubleheader.
Brayden Beatty enjoyed a pair of three-hit games, while Aaron Fuzesy followed a 2-for-4 Game 1 effort with four hits (two doubles) and three RBI.
Walker DesRosier scored all four times he reached base in Game 2 and catcher Connor Devine doubled and drove in a pair.
DesRosier and Bohden Bahnmiller combined to toss 6.1 innings of scoreless relief in Game 1.
Bahnmiller struck out six in his first outing since May 27. JR Huschka was lifted with an apparent injury after throwing just 11 pitches.
Walker DesRosier (#4, left) and Aaron Fuzesy (#3, right) - Gary Marshall
Walker DesRosier - Gary Marshall
#1 Bo Bahnmiller - Gary Marshall
Helena Senators second baseman Brayden Beatty enjoyed a pair of three-hit games. Gary Marshall