Cape Town - The Varsity Cup match between NMU Madibaz and Maties was called off on Monday night after a pitch invasion.
With Maties leading in 19-0 early in the second half, a number of spectators entered the field of play which led to the officials stopping play.
Maties were later declared the winners of the fixture with further play not possible.
The win sees the Stellenbosch side secure a home semi-final.
Earlier, Maties had scored three first half tries through Johan Momsen, Logan Boonzaaier and Munier Hartzenberg.
Chris Smit added two conversions.
15 Jordan Koekemoer, 14 Athenkosi Mayinje, 13 Siphumelele Msutwana, 12 Riaan Esterhuizen (captain) , 11 Lindelwe Zungu, 10 Henrique Olivier, 9 Dundre Maritz, 8 Robert Izaks, 7 Henry Brandon Brown, 6 Jason Reinecke, 5 Ruben Le Roux, 4 Wynand Grassmann, 3 Johan van Wyk, 2 Jean-Pierre Jamieson, 1 Nicolas Roebeck
Substitutes: 16 Thembekile Boltina, 17 Thembelihle Yase, 18 Dylan Barendse, 19 Siyamthanda Jwacu, 20 Nathan Gogela, 21 Luvo Claassen, 22 Liam Blake-Taylor, 23 Stephan Zeelie
15 Reinhardt Fortuin, 14 Munier Hartzenberg, 13 Michael Hazner, 12 Cornel Smit, 11 Edwil vd Merwe, 10 Chris Smith, 9 Logan Boonzaaier, 8 Daniel Maree, 7 Stephan Streicher, 6 Johan Van Niekerk, 5 Johan Momsen, 4 Ernst van Rhyn, 3 Neethling Fouche, 2 Wilmar Arnoldi, 1 Niel Oelofse
Substitutes: 16 Craig Corbett, 17 Ricky Nwagbara, 18 Mzo Buthelezi, 19 Brandon Valentyn, 20 Joa Swart, 21 Matthew Dahl, 22 Herman van Dyk, 23 Carlisle Nel