As I got it, he dropped 5 points in one phase, went clean in one and lost 6 in another yesterday. That puts him in the top of the pack but probably moves him out of the lead.
A squall line went through Perry yesterday during the matches that was bad enough to require them to shut down for some time. Whether he got caught by that I don't know. (And I'm sure that he'll never mention it if he did.)
His Vandenburg Aggregate of a perfect 800 - 38Xs is a new national record.