McCollum stopped 17 shots as Toledo blanked the Trenton Devils 1-0 before 5,509 spectators at the Huntington Center.
Captain Randy Rowe put his team on top just 3:18 into the game. Rowe pounced on a big rebound and slammed it home for a 1-0 lead. Rowe's 18th of the season came just six seconds into a Walleye power play.
For the third straight game Toledo put plenty of pucks on net. Trenton goalie Jeff Lerg finished with 41 saves. But the one goal was enough for the Walleye to earn two all-important points.
Toledo (30-30-6) jumped over Gwinnett for ninth place in the Eastern Conference. The team also pulled within four points of Cincinnati for the eighth and final playoff spot.
The Walleye have six games remaining and three are against Cincinnati. The Walleye play the Cyclones on the road Friday and Saturday before the teams meet at the Huntington Center next Sunday.