There are many ways to answer your question. The truth is that everything depends on many aspects, the size of the tournament, the type of bets (micros, freerolls, low, medium), the speed (Turbo, Hyper, Normal, Slow), the type (Sit&Go, MTT).
It depends a lot on the player's experience, if he doesn't have any experience I don't think he will reach 1st place in a tournament, since sooner or later he will fall against another better player. Of course, not all levels are the same, since micro bets are not the same as low and medium bets. Each level has its difficulty.
If a player wants to be a winner, he must study many aspects of the game and it requires a lot of patience for at least 5 hours that a normal internet tournament lasts, because sometimes the big tournaments take up to two days with thousands of players and then it is really difficult. get to the top.
I think it's easier to win money in tournaments with few players.