Riley Brogan added consecutive kills to help the Lady Tigers stay within 14-13, but they were unable to generate enough quality chances for DeMent once she rotated forward.
Khloe Dischbein provided a key kill, Allie Kelly tipped down the ensuing overpass, and Coleman scored for Central after Kelly pulled a partial block from the net.
Shalea Fischbeck then made her impact by alertly covering a loud DeMent block and stopping two AV attacks within the same exchange before Kimball terminated at 20-15.
Casey found Kimball twice more on quick sets for her fifth and sixth kills before game one concluded on a combination stuff by Marler and Kelly.
DeMent compiled 15 kills and eight blocks, and Smith provided 10 kills with eight digs in defeat. Arcadia Valley mounted a solid comeback with hopes of securing game two.
Central jumped ahead 10-5 following two crafty dink kills by Casey. The third point of the set saw Marler terminate a smooth transition after libero Jessica Husley fought off a vicious ball from DeMent near the sideline.
Smith tied the stanza at 15-15 with two aces after DeMent pounded two kills in a 6-0 run, but Kimball and Marler powered down three of the next four points in response.