One thing about week-old, 30-points wins is they tend to breed confidence.

Glacier’s boys again made pretty short work of Missoula Big Sky Thursday, defeating the Eagles 54-31 to make the semifinals of the Western AA Divisional at Flathead High School.

Cohen Kastelitz scored 19 points to lead the Wolfpack (13-6) into Friday’s nightcap against Helena (14-5), which swamped Missoula Sentinel 73-45 Thursday.

The Bengals and Wolfpack split their regular-season meetings, each winning on the other team’s floor.

Glacier 54, Big Sky 31

Last Thursday the Wolfpack beat the Eagles 68-38 at home, riding transition threes.

This was more about Kastelitz wheeling around inside: He did hit a 3-pointer, but the rest of his makes were inside the key.

“They were definitely playing us more back this game, not rebounding as hard,” Kastelitz said. “But we were running the ball still, really well.”

The Pack were 3 of 16 from the arc, but 50 percent from inside it. Kastelitz’ steal and coast-to-coast drive was one early highlight; Ty Olsen converted a steal of his own for a 17-3 Glacier lead after one quarter.

When Jeff Lillard scored off a scramble under the Glacier basket, the Wolfpack led 33-13 just before halftime.

Olsen had 14 points. Noah Dowler filled up the stat sheet with 15 rebounds and three blocks, to go with six points. Glacier ruled the boards 37-26, and held Big Sky to its season low in points.

“He’s been doing it all season — he’s just a dog on the boards,” said Kastelitz, who had seven boards of his own. “It’s the part of the game that he impacts us the most. That’s his identity.”

“It did turn into a little different style of game, a little more half-court game than last week,” Glacier coach Mark Harkins said. “They were really conscious of taking away our wings in transition. But I thought we did a great job — Cohen did a great job of getting the ball inside and scoring — of attacking the rim.

“And I was especially proud of our defense. I thought our defense was very, very good.”

Big Sky (8-11) and Sentinel (3-16) will play a loser-out game Friday at 2 p.m.

Big Sky 3 10 9 9 - 31

Glacier 17 16 9 12 - 54

MISSOULA BIG SKY — Josiah Cuaresma 4-8 1-2 11, Owen McGuinn 1-4 0-2 2, Aidan Beard 3-6 1-2 7, Isaiah Reed 0-7 0-0 0, Tory Williams 1-3 0-0 2, Lucas Thorne 0-3 0-0 0, Michael Hawk 0-2 0-0 0, Colter Ramos 2-5 0-0 5, Carson Towe 1-4 0-0 3, Isaac Wohl 0-0 0-2 0, McGil Sabado 0-0 1-2 1, Drew Paxton 0-0 0-0 0. Totals 12-42 3-10 31.

GLACIER — Cohen Kastelitz 9-13 0-0 19, Kaidrian Buls 1-6 0-0 2, Noah Dowler 3-6 0-0 6, Adam Nikunen 2-4 0-0 5, Ty Olsen 6-15 1-2 14, Tyler McDonald 1-1 0-0 2, Xavier Stout 1-4 0-0 2, Jeff Lillard 1-3 0-0 2, Carson Gulick 0-1 0-0 0, Wyatt Cox 1-4 0-0 2, Travys Agan 0-4 0-0 0, Ben Winters 0-0 0-0 0. Totals 25-61 1-2 54.

3-point goals — Big Sky 4-15 (Cuaresma 2-3, Ramos 1-1, Towe 1-3), Glacier 3-16 (Kastelitz 1-1, Nikunen 1-3, Olsen 1-4). Rebounds — Big Sky 26 (Cauresma 5, McGuinn 5), Glacier 37 (Dowler 15, Kastelitz 7). Fouls — Big Sky 2, Glacier 10. Blocks — Big Sky 2 (Cauresma, Wohl), Glacier 3 (Dowler 3). Steals — Big Sky 4 (Reed 2, McGuinn 2), Glacier 9 (Kastelitz 4). Turnovers — Big sky 17, Glacier 9.

Helena 73, Sentinel 45

Jaxan Lieberg scored a game-high 24 points and the Helena Bengals rolled to a 40-18 halftime en route to the win.

Lieberg was 4-for-9 on 3-pointers and the Bengals hit eight times for the arc as a squad.

Sentinel had nine points from Riley Allen; the Spartans shot just 23 percent.

Sentinel 12 6 19 8 - 45

Helena 20 20 20 13 - 73

MISSOULA SENTINEL — Brady Rupert 2-5 0-0 6, Trevor Rausch 2-10 3-5 8, Eli Iverson 1-1 0-2 2, Riley Allen 2-10 5-5 9, Patrick Sale 2-4 1-1 5, Blake Taft 0-4 3-4 3, Evan Richardson 1-5 1-2 3, Randall Parker 0-3 2-2 2, Vincent Lincoln 0-1 1-2 3, Holter Schweyen 1-2 0-0 2, Jackson Krueger 0-0 0-0 0, Kade McDonough 0-2 3-3 3. Totals 11-47 19-26 45.

HELENA — Colter Petre 2-6 3-5 7, Cael Murgel 1-2 5-8 7, Jaxan Lieberg 9-15 2-2 24, Tevin Wetzel 1-4 4-4 7, Dylan Christman 2-4 3-5 7, Cayton Delsigne 0-1 5-6 5, Dylan Mosnells 1-2 0-0 2, Manu Melo 2-5 0-0 5, Sam Ark 2-2 1-4 7, Joey Seliskar 1-1 0-0 2, Kyler Larson 21-44 23-34 73.

3-point goals — Sentinel 4-21 (Rupert 2-5, Rausch 1-4, Richardson 1-5), Helena 8-25 (Lieberg 4-9, Ark 2-2, Melo 1-4, Wetzel 1-4). Rebounds — Sentinel 23 (Sale 4, Helena 36 (Ark 78). Fouls — Sentinel 25, Helena 21. Fouled out — Sale, Mosness. Technical fouls — McDonough, Mosness. Blocks — Sentinel 1 (Parker), Helena 6 (Murgel 2, Christman 2). Steals — Sentinel 7 (Rausch 3), Helena 3 (3 with 1). Turnovers — Sentinel 17, Helena 13.