Washington paced the Nittany Lions with a match-high 10 kills and five blocks in their second sweep of Indiana this season Wednesday night at Rec Hall.
The Nittany Lions finish the season 17-5 after losing to the undefeated Huskies in a close battle Sunday in Storrs, Conn.
The Nittany Lions punched their ticket to the NCAA quarterfinals, where they'll face No. 1 seed UConn for a trip to the Final Four.
For the second time this season, Russ Rose's Nittany Lions topped the Terrapins in straight sets Saturday night at Rec Hall.
The sophomore from Germany's first career hat trick helped the Nittany Lions advance to next Friday's second round of the NCAA tournament.
The Nittany Lions (24-1) bested Iowa in straight sets Wednesday night behind Simone Lee's double-double at Carver-Hawkeye Arena.