Glass played high school volleyball for Leland High School in Michigan, where her mother Laurie Glass was also her coach and grandfather Larry Glass was her high school basketball coach. She was a four-time first team all-state, all-region dream team and all-conference, is the National and State High School record holder in season aces (296), career aces (937) and career kills (3,584) and during scholastic career attacked at a .440 clip while also contributing 1,816 digs and 680 blocks. She was named "Michigan Gatorade High School Player" Year and Miss Volleyball for the state of Michigan.
College
She played college women's volleyball at Penn State University. During her four years at Penn State, the Nittany Lions posted a stunning 142–5 record (.966), including a perfect 102-0 streak that spanned three seasons, captured the 2007, 2008 and 2009 NCAA titles, advanced to the 2006 Elite Eight and won four Big Ten Conference titles. She was the three-time All-American, first team All-Big Ten, and three-time First Team AVCA All-Mideast Region. Under her guidance, Glass directed the Penn State offense to a record setting and nation-leading .390 hitting percentage and the Nittany Lions bested their own record of .350 set in 2007. She finished her career in 13th place in hitting percentage with .336 and blocks with 448, fourth in assists with 5,800, and fifteen with 465 sets played.
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International
Glass won the gold medal at the 2014 World Championship when her national team defeated 3–1 to China.[3] She was also selected tournament's Best Setter.[4] Glass has played for the United States women's national volleyball team in Rio that won a bronze medal and was named Best Setter.
^Benedetti, Valeria (October 12, 2014). "Volley, Mondiale: Usa batte Cina 3-1". La Gazzetta dello sport (in Italian). Milan, Italy. Retrieved October 12, 2014.