Guys what adamdunn said is really possible. I've played this game for like 5 years now, and some times ago i used to play in incredible 5 and couldn't lose a match. Unfortunately i don't play as much as I did and that's also due to the fact that in incredible i don't have any pleasure when i play. This is just too fast, always the same kind of points, and the IA does some unrealistic points
like, you think you go for a winner, the IA does an amazing race (when he is playing with players like Karlovic it's kinda weird), and shoots a winner on the line at 150Km/h.
So lately i was playing in Master 10 (Elite control), I played an AO with Federer which I won easily (my toughest match was against Djokovic in the 1/2 7-5 6-2 6-3)
Then I start a career with a created player (still in Master 10), I played and won every future and challenger that i've played, I got on the ATP tournaments and things got more serious but still i managed to have some victory against top 10 players like Djoko or Federer. I was playing Monte Carlo, I won against Federer (3-6 6-3 6-1) Youzhny (6-2 6-3) then i had to play the semis against Del Potro: quite an unbelievable match, i was down 4-6 2-5, he was serving for the match and i started playing amazingly on his serve games and in the end i won 4-6 7-5 6-3 (with the formofday it was """incredible 0.6""" (formofday was +0.06)). But like i said with this difficulty, even if i manage to win i don't really enjoy the game. For exemple in this match, Del potro hit something like 115 forehand (i played a lot in his backhand haha) and he did 35 winners with his forehand, and only 10 faults with his backhand ... Anyway, then i read your topic and thought "hey maybe i should try in pro 10 to see what it's like !", so i played my final against Verdasco in Pro 10 and won 6-4 3-6 6-4. It was tougher than i thought even if i didn't play as i do when i play in master or incredible. But I actually enjoyed this game ! i could try to do some shots that i can't do in master because it's going too fast :'D But i think that when i'll play against players between 50 and 200 (in the ranking) that'll just be 6-0 6-0 :/
I just think that you have to adapt the difficulty acording to your player to make it realistic :p My actual players isn't real good so that's why i'm having some difficult matchs but i'll probably changed back to master when he'll be better :p
by adamdunn » 28 Nov 2013, 00:02 You can tell, by the fact he brags about his every achievement in the Game, without mentioning his playing difficulty
Of course it's on Professional, but what the heck, sometimes it's fun to just dominate. 
....
It's a good thing you've upped your levels because you are too good for the Pro Levels and you need a better Challenge... 
) and ended up number one in the world. Then I decided to quit again and switch to online game on regular bases.