Stewart connected on six of his eight attempts from three-point range on Saturday.
This will be the Nittany Lions' 31st straight appearance in the NCAA Tournament, the second-longest streak in NCAA soccer.
The Nittany Lions' ranked streak stays intact despite reaching 10 losses last week.
Gress earned her first All-Tournament team selection with an eight-save performance against UCLA.
The Nittany Lions fall behind Minnesota-Duluth and Denver in the latest USCHO poll.
Men’s basketball defeated Fairfield, and the Lady Lions topped Bucknell and Cincinnati to start the season.