[W]e now have confirmation in the form of an e-mail from the Guinness people.
"The most basketballs dunked in a single jump was three by JaVale McGee (USA) during the Sprite Slam Dunk Contest at the 2011 NBA All-Star Game at the Staples Center in Los Angeles, California, USA, on 19 February 2011. McGee jumped with two basketballs in his possession before dunking each and receiving a third basketball to dunk via alley-oop from teammate John Wall (USA)." [...]
JaVale has since tweeted a pic of his certificate, which we suppose makes it official. At least it looks official, what with the foil stamp and all. [...]
We reached out to the Guinness people to find out who solicited the record and the response was "JaVale did directly, or his manager did". Maybe JaVale was a little more bitter about losing the contest than we thought. It's like his triple-double all over again.
Decent compensation for finishing as the runner up in the dunk contest, though it's pretty funny that he actually sought it out. Anyway, so we can enjoy it one more time:
