Musil added a goal in regulation for Red Deer (26-14-6), which has won six of seven, while Colton Bobyk and Presten Kopeck also found the back of the net.
Taylor Cooper scored twice for the Pats (26-15-4) with Adam Brooks adding the other.
Taz Burman stopped 26 shots for the win, while Daniel Wapple made 32 saves for Regina.
The Rebels were scoreless on 10 power-play chances while the Pats went 0 for 3.
WARRIORS 5 HURRICANES 0
MOOSE JAW, Sask. — Zach Sawchenko turned aside all 28 shots he faced as the Warriors blanked Lethbridge.
Jiri Smejkal had a three-point night for Moose Jaw (19-24-4), including two goals. Dustin Perillat, Jack Rodewald and Axel Blomqvist also scored.
Jayden Sittler kicked out 43 shots for the Hurricanes (10-27-6), who have lost four straight.
BLADES 3 ICE 2
SASKATOON — Wyatt Sloboshan scored at 19:49 of the third period as the Blades came back to beat Kootenay.
Josh Uhrich and Nolan Reid also had third-period goals for Saskatoon (12-29-3). The Blades have now won three straight.
Captain Sam Reinhart and River Beattie chipped in for the Ice (22-22-1).
WHEAT KINGS 5 BRONCOS 3
SWIFT CURRENT, Sask. — Braylon Shmyr struck twice as Brandon won its fourth straight by beating the Broncos.
Rihards Bukarts scored the winner for the Wheat Kings (33-9-4). Nolan Patrick and Duncan Campbell rounded out the attack.
Cavin Leth, Linden Penner and Jake DeBrusk had goals for Swift Current (21-20-5).
TIGERS 5 RAIDERS 4
PRINCE ALBERT, Sask. — Chad Butcher had the first of three-straight goals in the second period as Medicine Hat downed the Raiders.
Dryden Hunt and Chad Labelle also scored in the second for the Tigers (30-12-2). Cole Sanford and Trevor Cox supplied the rest of the offence.
Jesse Lees, Austin Glover, Jayden Hart and Metteo Gennaro found the back of the net for Prince Albert (19-25-1).
ROYALS 4 HITMEN 1
CALGARY — Austin Carroll scored two of Victoria's three third-period goals as it beat the Hitmen.
Jack Walker had the other goal in the third for the Royals (24-19-3). Joe Hicketts opened the scoring in the first on the power play. Victoria has now won four straight.
Ben Thomas responded on the man advantage for Calgary (23-17-5).
WINTERHAWKS 8 COUGARS 2
PRINCE GEORGE, B.C. — Oliver Bjorkstrand struck twice and added a pair of assists as Portland scored five goals in the third period to rout the Cougars.
Miles Koules, Brendan De Jong, Alex Schoenborn, Layne Viveiros, Skyler McKenzie and Keoni Texeira supplied the rest of the offence for the Winterhawks (25-19-3).
Brad Morrison and Jansen Harkins scored in the third for Prince George (20-24-2).
BLAZERS 1 GIANTS 0
KAMLOOPS, B.C. — Connor Ingram turned away all 36 shots he faced as the Blazers shut out Vancouver.
Matt Needham scored the game's lone goal in the second period for Kamloops (16-24-6).
Payton Lee made 26 saves in net for the Giants (19-23-2), who have lost three straight.
SILVERTIPS 6 THUNDERBIRDS 0
EVERETT, Wash. — Austin Lotz turned away all 31 shots he faced to lead the Silvertips to a shut-out win over Seattle.
Montreal Canadiens prospect Nikita Scherbak, Kohl Bauml, Dawson Leedahl and Carson Stadnyk scored in the third period for Everett (28-12-4). Jake Mykitiuk and Ivan Nikolishin had goals in the second period. The win was the fourth straight for the Silvertips.
Taran Kozun started in goal for the Thunderbirds (22-17-5), stopping 28-of-33 shots in 55:11. Danny Mumaugh went the rest of the way, making one save in 4:49.
AMERICANS 7 CHIEFS 0
KENNEWICK, Wash. — Lucas Nickles scored twice and added two assists while Evan Sarthou made 25 saves as Tri-City blanked Spokane.
Tyler Morrison, Jordan Topping, Beau McCue, Tyler Sandhu and Brandon Carlo also found the back of the net for the Americans (22-21-2).
Garret Hughson started in goal for the Chiefs (23-17-4), kicked out 20-of-25 shots in 44:55. Tyson Verhelst played 15:05 of relief, making two saves.