In the match between "Rigas Futbola Skola" and "Grobinja", the advantage is clearly with "Rigas Futbola Skola". The team is showing high efficiency, leading in the Latvian championship and having the best results in head-to-head matches with "Grobinja". The recent victory of "Rigas Futbola Skola" in the Europa League qualification has added confidence to them, and their winning streak and stability in the game will make them favorites in the match against "Grobinja", which has less impressive form and results. Therefore, the prediction for a victory for "Rigas Futbola Skola" seems to be the most accurate.