A third sophomore, Brooke Heck also posted a double-double for Spring Valley with 19 points and 11 rebounds.
Rebounding proved key for the Timberwolves. Spring Valley shot just 32-of-80 from the floor, but collected 49 rebounds to create plenty of second- and third-chance scoring opportunities.
Miller said the rebounding advantage is a product of both physical talent and mental awareness.
"We're athletic and we got girls who can jump," he said, "but we definitely work on positioning."
Spring Valley led 42-26 at halftime behind solid rebounding and unselfish play. The Timberwolves continued to increase their advantage in the second half in the eventual winner.
Despite the wide margin, Toler said he was pleased by his team's hustle.
"I know it was a 30-point loss, but our effort - we played hard all the way through," he said.
In the defeat, senior guard Haeley Moore contributed a solid individual performance. Moore finished with a game-high 21 points, shooting 13-of-17 from the free-throw line.
"She gives everything she's got every ballgame," Toler said of Moore. "I think she's finally starting to understand her role of playing like a leader."
Behind Moore, Winfield's Morgan Eggleton also posted a nice showing with 16 points, including four made 3-point baskets.
Since starting the season 0-2, Spring Valley has won 16 in a row.
Winfield visits Nitro 7:30 p.m. Saturday. Spring Valley returns to action to play host to Logan 7:30 p.m. Wednesday.