Rummel starter Connor Cosse didn’t feel sharp in the bullpen before Tuesday’s District 9-5A opener against Brother Martin, but the senior was dominant on the mound.

The Meridian Junior College signee threw a complete game, three-hitter as the Raiders took a 3-1 win over Brother Martin at Kirsch-Rooney Stadium.

“To be honest in the bullpen, I didn’t feel that great,” he said. “But I just went out there and expected my defense to work behind me, and that’s what they did. That’s what we’ve been working on at practice. We’re the underdogs, so it’s great beating a top team in the state.”

Cosse threw 99 pitches. He struck out six, walked one and threw 13 first-pitch strikes.

The Raiders (11-5, 1-0) took advantage of two costly Crusaders errors to score three unearned runs.

The Raiders did most of their damage in the third. Zach Cook opened with a walk, advanced to second on a bunt and scored an error as Kyle Costanza’s grounder went through the second baseman’s legs with one out. Costanza scored on Chase Fourcade’s two-out single for a 2-0 lead.

“Two outs, two strikes, he had just chased a bad pitch, but he regrouped,” said Rummel coach Nick Monica, about Fourcade’s at-bat. “He saw seven pitches in that at-bat, and he came up big for us.”

Rummel added another unearned run in the fifth as Luke LaCoste opened the inning with a single. He advanced to second on a wild pitch, took third on a ball in the dirt and scored when Kevin Stretzinger’s throw sailed into left field.

Brother Martin (10-3, 0-1) broke through in the sixth as Brady Faust opened the inning with a single and scored on Mason Bonnaffons’ groundout to cut the lead to 3-1. The Crusaders had the tying run at the plate in the seventh, but a line drive double play ended the game.

“It’s big because it gives us a lot of confidence going forward,” Monica said. “This is a tough week because we play three teams that are picked ahead of us in district. It’s a good start to the week. We needed this, but I don’t think the 13 seniors that we have want to win just one district game, so there’s a lot of work left to do.”

LSU signee Blair Frederick took the loss, allowing three unearned runs on three hits in six innings. He struck out nine and walked three in 114 pitches. He also went 2-for-3.

Brother Martin coach Mark Wisniewski said his team’s errors were costly.

“We did something that was uncharacteristic of us to this point,” he said. “We’ve been pretty good defensively, but a couple of mistakes were the difference in the game. When you give a good team some breathing room, they take advantage. We just need to get back to work tomorrow and fix our mistakes.”