Left wing Bill Sweatt scored both goals for Chicago, while right wing Darren Haydar and defensemen Brad Hunt and Zach Miskovic recorded assists.
Chicago (1-1-0-1) and Peoria (2-0-0-0) entered the third period deadlocked 2-2, but Rivermen left wing Jaden Schwartz scored a pair of unassisted tallies seven minutes apart to decide the outcome of the game.
Schwartz’s first goal of the night came at the 12:24 mark of the final frame when he forced a turnover in front of the Wolves net and one-timed a shot past Chicago netminder Matt Climie. Schwartz iced the game for Peoria with 28 seconds remaining when he picked the pocket of a Wolves defender and snuck a shot through Climie’s legs.
The Wolves opened scoring on the power play 6:14 into the first period when Sweatt held the puck in the far circle and snapped a shot over Rivermen goaltender Mike McKenna’s glove.
Peoria tied the score at one when right wing Cody Beach snuck a pass through the crease to Phil McRae, who tapped home a shot past Climie.
Sweatt’s second goal of the night gave the Wolves a 2-1 lead at 12:08 of the second period. His shot from the top of the slot deflected off a Rivermen defender and past McKenna.
McKenna (1-0-0) stopped 32 of 34 shots.
Peoria drew even when right wing Anthony Peluso tipped a shot past Climie at 18:33.
Climie (0-1-0) posted 31 shots in the loss.
The Wolves close out their preseason schedule with a game against the Milwaukee Admirals at 7 p.m. Saturday at the Milwaukee School of Engineering Kern Center.
Peoria 1 1 2 -- 4
Chicago 1 1 0 -- 2
First Period---1, Chicago, Sweatt 1 (Haydar, Hunt), 6:14 pp; 2, Peoria, McRae 1 (Beach), 15:05. Penalties---Ponich, Peoria (high-sticking), 5:29; Cundari, Peoria (slashing), 7:53; Miller, Chicago (hooking), 11:08.
Second Period---3, Chicago, Sweatt 2 (Miskovic), 12:08; 4, Peoria, Peluso 1 (Ponich), 18:33. Penalties---Connauton, Chicago (interference), 0:12.
Third Period---5, Peoria, Schwartz 1 (unassisted), 12:24; 6, Peoria, Schwartz 2 (unassisted), 19:32 pp. Penalties---Miskovic, Chicago (boarding), 5:53; Friesen, Chicago (tripping), 6:07; Cundari, Peoria (slashing), 8:25; Grachev, Peoria (roughing), 12:16; Archibald, Chicago (boarding), 12:16; Matheson, Chicago (tripping), 19:03.
Shots on goal---Peoria: 12-10-13—35; Chicago: 10-15-9-34. Power plays---Peoria: 1-4; Chicago: 1-3. Goalies---Peoria, McKenna (32-34); Chicago, Climie (31-35). A---N/A. Referee---Jarrod Ragusin. Linesmen---Peter Cichy and Aaron M. Mills.