Just a friendly bit of advice, as someone who has compulsively followed the home team's scores for the past couple of years. You'll see a lot of numbers going up on the interwebs. Ignore them all.
It's a piece of advice that's equally as valid for your rookie. As far as he's concerned, his performance can be scored in binary: zero or one. If he gave it everything he had (assuming a son - I can't be gender neutral) - in rehearsal that day, in the show that night - the score was a one. If not, it's a zero.
The rest of the numbers will follow.