I can definitely be competitive. Once there is something I want to do I can literally go days just consuming myself entirely with that task. Basketball, poker, even board games like risk...these are things that I have spent a lot of time on. I think I do it to prove to myself that if I really wanted to be good at something...anything...I could do it. (Which isn't true) If I define "good" as "better than most" then I can be absolutely ruthless when it comes to achieving what I set out to.
The thing is..I don't define "good" as "better than others" a lot of the time..so to an outsider I definitely could see how I could come off as non-competitive..despite almost always working hard (just not on things people think matter..lol)