And Casey coach Randy Salyers said his team's play in the paint, where Casey outrebounded Boyle 37-35, factored heavily in the win.
"The thing I was probably most pleased with was that we were making contact, pushing for position on the boards," Salyers said.
Casey built a double-digit lead in the second quarter and maintained it through much of the second half, as Boyle never got closer than seven points after halftime.
It was a step back for a Boyle team that has made progress in recent weeks, and it was a grave disappointment to Boyle coach Judie Mason.
"I didn't think we played hard tonight," Boyle coach Judie Mason said. "It's the first time I can honestly say my team wasn't working hard. But that'll change.
"I'm going to show them the real coach Mason. I told the girls, 'I've tried to be nice, but my twin is gone now, and the real coach Mason is coming now.' Things are going to be different, and it's going to start as soon as we get back to Boyle County."
Boyle committed 23 turnovers in the face of Casey's pressure defense, which Salyers said was a key to Casey's strong start.
"In the first half, I thought our press kind of bothered them," he said.
Casey gave up only one basket in the first five minutes as it built an 11-4 lead. Boyle clawed back within four points midway through the second quarter before three straight layups by Beth Patterson gave Casey a 25-15 lead.
Patterson, who led Casey with 24 points and seven rebounds, scored six points in an 8-2 run at the start of the second half that gave Casey its largest lead at 33-20.
Casey played its first full game without its top ball-handler, guard Tabitha Yaden, who suffered a knee injury against Lincoln. So its high turnover total (24) didn't come as a surprise to Salyers, especially given the nature of Boyle's defense.
"They do a good job as far as trying to deny the passing lanes," Salyers said. "They don't give you anything easy."
Casey shot 44.2 percent (19-for-43) from the field but hit only nine of 23 free throws.
"Even though Boyle County comes at you, I thought we did a pretty good job, shooting 44 percent from the field," Salyers said. "But I don't know what to do about the free throws."
Boyle shot 28.3 percent (13-for-46) from the field and went 4-for-22 from 3-point range and 8-for-15 at the free-throw line.
Mason said a lack of leadership played a big role in preventing a Boyle rally.
"I don't have any senior leadership," she said. "The older girls have gotten complacent with losing. That's what we're battling right now.
"I don't have a leader. Not one single person is willing to take this team on her shoulders. Until we find that, we're not going to be successful."
Casey is turning to some of its best players from the past to motivate its current players. Emily Luttrell was the first in a series of guest assistants Salyers has invited to sit on the bench, and Debbie Miller, the program's all-time leading scorer, will fill the same role in Saturday's game against Danville.
BOYLE (4-9) - Ashley Chalk 2, Tiffany Webb 3, Stephanie Elks 2, Allie Hafley 6, Cierra Leffew 1, Kate Edmiston 2, Amber Mills 11, Cassie Anderson 8, Michelle Yates 3.
CASEY (6-7) - Beth Patterson 24, Lindsey Hoskins 12, Tara Weddle 4, Lindsay Wilson 3, Meagan Murphy 7.