The Rs ran out winners against De La Salle at Stradbroke Park, beating the Blue and Golds by 25 points.
Harry Willems turned it on for the Red 'n' Blacks, while Gus Lachal proved a winner up forward again.
The win sees the Xavs remain in second spot, a game and a half clear of the third-placed team St Bernard's. Next week, a clash with top team Old Scotch at Camberwell.
Old Xaverians 4.4-28 6.6-42 8.8-56 10.10-70
De La Salle 1.0-6 4.1-25 6.4-40 6.9-45
Goal Kickers: G. Lachal 2, J. Kentish 2, N. Harries 2, C. Niall, S. Stevenson, H. O''Farrell, J. Cowell
Best Players: H. Willems, C. Connors, C. Niall, A. Sheedy, E. Ralph