As a former sportsman who needed to take part in more than one competition, I know all the tricks and subtleties that others affect the victory. It is fairly possible to calculate it. My buddies and I, who also know about sport, often bet that we will win, seeing another match on TV. Most frequently we were correct, but sometimes luck wasn't on our side. Naturally, you will need to know some strategies, however not without fortune or opportunity, so constantly.