If you can name the league leaders in each of these categories, you're an MLB superfan

The All-Star Game may not come at the exact halfway point of the year, but it does a pretty swell job of helping make sense of the season.
Sometimes, you lose the handle on the crazy stories, the breakout stars and the league leaders amid the day-to-day action of 162 games. But then the All-Star break comes and you can catch up.
So, now it's time to either show off your knowledge or learn something new with this quiz on the first-half league leaders: