Kudla won. Williams won. Tim Smyczek won. Alex Kuznetsov won. Bobby Reynolds won. And I think that's all the Americans.
There are only three rounds in qualies. So whoever of the above wins their next match is in the main draw.
Williams plays Reynolds. The only time they've previously played was in the 2012 Australian Open Wild Card Tournament (basically, the australian open gives the USTA a wildcard (the US Open returns the favor), and so the USTA puts on a tournament to see who gets it). Williams won that match, but it was a tight three setter. some highlights with really shoddy camera work
Williams will be favored to win tomorrow, and I think he will win.
Kudla plays a dude from Belgium. Kudla will definitely win. Dude has been playing out of his mind lately.
I've never heard of the guys Smyczek and Kuznetsov are playing against, but I like their chances -- their scorelines indicate that they're both playing well.