Thomas More defeated Marian 52-13 in Big Rivers action to remain unbeaten in the conference.
Marian battled in the opening half and it was only 12-6 until late in the first half when Luca Mattassini scored to make it 17-6.
Thomas More got an early try from prop Hudson Montgomery and then another from Lorenzo Lelli. Marian replied with two penalty goals from flyhalf Tommaso Lorrenzetti.
At 17-6 Marian was in with a show but were hut hard by a try seconds into the second half with center Rafael O'Gorman scoring and converting his own try.
That made it 24-6 and Thomas More pulled away from there with O'Gorman, Manual Zubiri, Holway Casini, and Mattassini again going over.
O'Gorman ended up with with 20 points with two tries and five conversions.
Marian scored a try late in the game thanks to hooker Daniel Riecke, converted by Lorenzetti.