In addition to being a baseball star in high school, Zack also lettered in golf and volleyball.
In 2002, Zack became the third consecutive high school hurler drafted by the Royals. The two before him were Mike Stodolka in 2000 and Colt Griffin in 2001.
In 2004, Zack became the third youngest Royals starter ever, after Bret Saberhagen (20 years and eight days) and Mark Littell (20 years and almost six months).
Zack’s start against the Cleveland Indians in September of 0f 2008 made him the third youngest pitcher (24 years and 321 days) in Royals history to reach triple digits in career starts.
In 2009, Zack set a Royals record be working 43 innings without an earned run. He joined Fernando Valenzuela as the only pitchers since the early 1900s to go their first four starts of a season without allowing an earned run.
In 2009, Zack became the third pitcher in big-league history to win his first six starts while posting an ERA under 0.50. The others are Walter Johnson in 1913 and Fernando Valenzuela in 1981.
Zack and Emily Kuchar got engaged early in 2009. She is a former Dallas Cowboys cheerleader, a dancer and a model. She was Miss Daytona Beach USA 2008."
Emily was jealous of Zack when he appeared on the cover of Sports Illustrated in 2009. One of her goals is to model for the magazine’s swmisuit issue.