Nick Hefferle scored three goals, including two in the first period, to lead Roxbury to a 6-3 victory over Vernon at Skylands Arena in Stockholm.
Hefferle has six goals in his first two games with back-to-back hat tricks.
Joe Carey and Chase McGowan each had a goal apiece for Roxbury (2-0), which led 4-1 after the first period.
Ryan Callahan stopped 21 shots in the win.
TJ Santaita scored three goals, including two in the third period, and Ayden Steinbach added another to pace Vernon (0-2).