Each team failed to score in the opening period but the Rough Riders erupted for four goals in the second period.
Peter Murphy got the winners on the board with a tally from teammates A.J. Catalano and Richie Fortin on the power play. Just over two and a half minutes later, Bobby Petry scored on the power play from Pat Clegg and Chris Ericson. Petry tallied a shorthanded goal to make it 3-0 and Murphy finished the scoring in the period with an unassisted goal.
"We started out slow, but (goalie) Brian Gallagher kept us in the game until our skaters got going," said Kent Roosevelt head coach Bernie Hovie. "He came up big and that was probably his best game in two years."
The final two Rough Rider goals game off the sticks of Tom Boyle and Cody Ray.
Petry was named as the tournament's most valuable player.
Gallagher stopped 20 shots on goal in the shutout victory.
In Saturday's game, Murphy scored a pair of goals and added an assist to help Kent Roosevelt defeat host Rocky River 5-2.
Murphy's first goal came at 9:19 of the first period and tied the score at 1-1.
The Rough Riders trailed 2-1 after one period, but drew even on a goal by Richie Wiland from Petry.
Kent Roosevelt took the lead for good on a power play goal by Murphy, assisted by Fortin. Ericson closed out the second period for the Rough Riders by scoring off an assist from Kevin Smalley to make it 4-2.
Fortin, assisted by Murphy and J.R. Elam, added a Kent Roosevelt goal in the third period.
Brian Gallagher had 10 saves, while Roosevelt outshot the hosts 34-12.
Kent Roosevelt (3-0) returns to action Thursday when it hosts Hudson at Kent State Ice Arena.