Tristan Beck

Beck attended Corona High School in Corona, California and was on the varsity baseball team for 4 years. He played for the team as a pitcher and center fielder, and committed to attend Stanford University in order to play college baseball for the Stanford Cardinal. He pitched to a 7–1 win-loss record and a 0.65 earned run average (ERA) with 82 strikeouts and 18 walks in 65 innings pitched as a senior, ending his high school career with a 19–4 record and a 1.23 ERA.

Eligible for the 2015 MLB draft and projected to be selected in the first round by Baseball America, Beck decided that he would fulfill his commitment to attend Stanford, and informed teams that he would not sign. The Milwaukee Brewers selected him in the 34th round, and he did not sign. He played collegiate summer baseball for the PUF Capitalists of the California Collegiate League before he enrolled at Stanford. As a freshman in 2016, Beck started for the Cardinal on Opening Day, become the third freshman to do so after Mike Mussina and Cal Quantrill. Beck was named All-Pac-12 Conference and a Freshman All-American by Collegiate Baseball.

Beck suffered a stress fracture in his back in 2017, and missed the entire season. A draft-eligible sophomore, the New York Yankees selected Beck in the 29th round of the 2017 MLB draft. Beck opted to return to Stanford for his junior year.

Beck's mother and older sister are Stanford graduates. His younger brother, Brendan, also committed to play college baseball for the Cardinal.