On Friday night, the Silverwolves absorbed the late run from Roy and were able to come away with a 60-48 victory.
"We kind of did break down a little bit, but we were able to stop them," Bostic said. "We had a lot of motivation."
After opening a 21-point lead late in the third, the Silverwolves (6-0) allowed Roy to climb back into the game when the Royals (4-3) finally were able to find an offensive flow.
Jordynn Barrera, who finished with a game-high 26 points, and Kaitlyn Hurley, who added 15, sparked a 10-2 Royals run to open the fourth quarter.
But the Silverwolves were able to keep pace with the Roy from there, never letting their cushion drop to fewer than eight points.
"We're really well meshed," said Bostic, who finished with 13 points.
"Everybody relies on each other, and everybody trusts each other. I don't know we're just a really good team this year."
Unlike in previous games, the Silverwolves were able to start fast. They scored 23 points in the first quarter to open a 14-point lead, which they padded the second and third quarters.
"I think we just started off hard," Bostic said.
"Our offense was just there today. It was actually, like, our first good start. We haven't been starting off very good, so I was happy about that. We moved the ball good."
Whitney Saunders scored 14 points to lead the Silverwolves, though she got into early foul trouble.
"Me and Whitney are good on offense, I feel like," Bostic said.
"The rest of the team is really good on defense, and defense makes good offense."