edit - I watched it again more closely. Looks like he threw down the second ball and the middle shot was either a practice swing or he missed it altogether and it wasn't counted (which I think is fair given he was wearing a thick space suit in low gravity swinging one handed with a fishbowl on his head).

edit 2 - Just seeing child post. Guess I gotta watch it again :)

edit 3 - Yep, child post is correct. It's sort of weird how confusing this short video is. The second ball kind of appears out of nowhere, as if he was doing a practice swing and dropping the ball at the same time.