Derek Pepin led Rockford with 26 points and Samuel Zilmer contributed 15 points and 8 rebounds.
Leaders for Perham were Micah Thompson (20 points, 6 rebounds) and Soren Anderson (19 points, 3 rebounds). Alex Ohm had a team high 3 assists and Chas Melvin added 6 points and 3 boards.
The Yellowjackets (8-5) will host Breckenridge on Tuesday at 4:30pm in a Heart O’ Lakes Conference contest.