There is actually a very easy way to win all tournaments. When you start a tournament, you can choose how many teams are going to be controlled by playres and NPCs. Mark all of them as players and then simulate all of the games. I tried that this morning and got it in like 5 minutes :D (sorry for mistakes, I dont use english very often). The same you can do with custom tournament. So i guess this game can be completed in like half an hour.