Do we just name one thing we are good at and then wait for someone else to post before saying another thing we consider ourselves good at? Or can we post a few at a time?
I'll start with just one for now:
Golf. I've played since I was really little and so I've gotten really good at it. It was always a "hobby" for me, but I've still played at high competitive levels. When I was in High School, I was a starter on the varsity golf team when we made it to the State finals. I've also played golf for "Team USA" in an international tournament with a singles format resembling the Ryder Cup as team players are "paired" against players from another team and score "points" based on tasks.
In the tournament I played in: a point was awarded for having the better "stroke play score" over 18 holes. A second point may be awarded for "match play score" over the Front 9 and a third point may be awarded for "match play score" over the Back 9. That event, I was the only golfer on any team to score 3 of 3 points (Go Team USA!) 
I don't play golf as much anymore, since I am usually working or attending college/university. I've also been a golf ranger and Head Rules Official for about 7 years or so now.
I also love running and cross country. Speaking of, I like food.