I consider myself a C+ player. On 3 different occasions I have run 3 straight racks of 9 ball, and on several occasions, I have run 4-5 in a row playing the 7 ball ghost. However, if you watched my average game, you would never think that was the case. Part of being a lower level player is inconsistency, so it is not unlikely that a C level player can have some real ups and downs. Heck I have played friends that are D- players that have had 3-4 game series where they looked like a solid C, so people have to be willing to accept some fairly significant ups and down. That being said, I have spoken to league players who have told me that if I played for them, I wouldn't be allowed to win certain matches, and I wouldn't be allowed to run over a certain number of balls. So I am sure it goes both ways.