Tim Mayza

Mayza played baseball, basketball, and soccer for Upper Perkiomen High School in Red Hill, Pennsylvania. As a sophomore, he threw a no-hitter. In his final high school season, Mayza pitched to a 5–3 win–loss record, 2.73 earned run average (ERA), and 53 strikeouts in 51 innings pitched. He signed a letter of intent to attend Millersville University of Pennsylvania in November 2009. In his final year with Millersville, Mayza posted an 11–3 record, 1.55 ERA, and 91 strikeouts in 98 ²⁄₃ innings.

Minor leagues

Mayza was drafted by the Toronto Blue Jays in the 12th round of the 2013 Major League Baseball draft. He received a $100,000 signing bonus and was assigned to the Rookie-level Gulf Coast League Blue Jays to begin his professional career. After three appearances in the Gulf Coast League, Mayza was promoted to the Rookie Advanced Bluefield Blue Jays of the Appalachian League. Mayza made 13 total appearances in 2013 and posted a 1–4 record, 7.76 ERA, and 27 strikeouts in 29 innings pitched. In 2014, he split time between Bluefield and the Short Season-A Vancouver Canadians. In 26 ²⁄₃ innings, Mayza worked to a 2–4 record, 6.75 ERA, and 20 strikeouts.

Mayza pitched the entire 2015 season with the Class-A Lansing Lugnuts. He made 26 appearances for the Lugnuts, and posted a 3–2 record, 3.07 ERA, and 62 strikeouts in 55 ²⁄₃ innings pitched. Mayza continued to progress through the Blue Jays organization, beginning the 2016 season with the Advanced-A Dunedin Blue Jays. In June, he earned a promotion to the Double-A New Hampshire Fisher Cats, where he finished the year. Mayza made a career-high 42 pitching appearances in 2016, and went 3–3 with a 2.25 ERA and 65 strikeouts in 64 total innings. On January 19, 2017, Mayza was invited to Major League spring training. He was assigned to Double-A New Hampshire to begin the 2017 season. After 29 appearances, Mayza was promoted to the Triple-A Buffalo Bisons. He made 11 relief appearances, posting a 0.93 ERA, before his first promotion to the Majors.

Toronto Blue Jays

On August 14, 2017, Mayza was called up by the Blue Jays. He made his major league debut on August 15, pitching a scoreless 9th inning in a 6–4 loss to the Tampa Bay Rays and recording his first major league strikeout against Peter Bourjos. Mayza was credited with his first major league win on September 12, when he pitched the bottom third of the 9th inning before the Blue Jays walked off the Baltimore Orioles 3–2.

Mayza is the eldest of four children born to Jerry and Marlene Mayza. His father played NCAA Division III basketball for Allentown College, and his sister Deanna plays basketball for the University of Hartford.