Rick, ZW you can evaluate individual. We get that on occasion. Mostly though we have straight grades. Some coaches grade on 60 flat and rarley deviate in either direction. Others straight 100 and down grade rarley. Some 100 and then kill your score on one mishap. Point being it is not very consitently used on their side but if you understand the grader and how they grade typically you can get a good feel for their percaption of how you did. Some, if they are mad, grade you horribly even though if you watch film you do fine. Typically I tell guys if your scores trend low across many coaches you need to look hard at everything you do.
The single best way to evaluate yourself is film. Watch it. Then get buddies to watch it as well and offer advice and input. If you are watching film, making adjustments to your game, and self evaluating, the rest takes care of itself.