Not that it has anything to do with his ability to serve as our president, but yes he did. What's more, his image makers knew he would as witnessed by the fact that Albert Pujols was positioned in front of home plate to receive Obama's fireball
BTW - Pujols evidenced why he is arguably the best player in baseball by executing, out of position, a marvelous short hop catch that spared the President the ignominy of having his pitch roll to the backstop.
You have to watch the clip for about 15 seconds or so before Obama's athletic prowess are displayed.
Interestingly enough, this is not a clip from the FOX Sports broadcast which, instead, used a ridiculously inappropriate camera angle that just had to be intended to avoid a possible PR mess for Obama. Not complaining though. Any president deserves such respectful consideration. After all, they can't all have W's canon of an arm.