The 1st XV game with CIYMS was cancelled due to Covid-19. The game is recorded as a 0-0 draw.
The 2nd XV travelled across town to play Belfast Harlequins 2nds at Deramore, where they came second best in a 28-3 defeat.
The 3rd XV lost 22-18 in a thrilling McCambley Cup contest against Ballymoney 4s at Orangefield Park.
The game finished with Grosvenor pounding on the visitors goal line but Ballymoneys impresssive defence prevented a winning score.