Steve Johnson hasn't lost since March or something. Congratulations!
He lost to Dancevic in Indian Wells qualies 7-6 in 3rd. But has not lost a college match since November.
He could cause an upset if he gets a good US Open draw. Remember last year Klahn took Querrey to 5 and the year before that Britton actually gave Federer a decent showing, one set was 7-5 if I remember. Steve Johnson is better than either of those guys