The Billings Royals swept the Helena Senators 6-4 and 5-2 in Class American Legion baseball at Dehler Park on Thursday.
The Royals play the Billings Scarlets on Friday at Dehler. The game will start at 7 p.m.
In the first game, the Royals made the most of their seven hits, with Joe Zimmer wiping out a 4-1 deficit with a fourth-inning grand slam.
Wyatt Summers doubled for the Royals, while Konner Wiechman supplied a triple.
Austin Vogel, who pitched the first four innings, got the win.
The Senators pounded out 14 hits, including two doubles by Tristan Shea.
Tanner Leenknecht had three RBIs and two hits, including a triple in the second game. The Royals had just six hits.
Baylee Slevira and Drew Atkieson also had RBIs for Billings.
Summers pitched all seven innings to earn the win.