competitor

Calvin has always been a bit on the competitive side. 

(he's the purple guy)

So, I probably shouldn't have been too surprised when I asked how his first orchestra rehearsal went to hear it in these terms:

"Well, I beat my stand partner two times and he beat me two times.  So it was a tie.  I talked to the coach after though, and told her I really like the songs she picked out."

 If only I knew where he gets this need to turn everything into a competition...