Jonathan Stiever is one of a few Cedarburg High School student-athletes to reach the professional ranks. A remarkable three-sport competitor, he earned nine Varsity letters in football, basketball, and baseball.

Stiever was a standout on the football field, excelling at defensive back, wide receiver, running back, and punter. He helped lead CHS to the WIAA playoffs all four years, including state quarterfinal appearances as a freshman and senior. He earned numerous honors, including First Team All-Conference, First Team and Honorable Mention All-State recognition, and the 2014 Milwaukee Journal Sentinel Player of the Year award. Stiever had a dominant senior season, recording over 700 yards receiving and 1,000 yards rushing. Stiever graduated as CHS’s all-time interceptions leader (14), receiving numerous offers to play NCAA Division 1 football.

Despite being an outstanding football player, Stiever earned most of his recognition as a baseball player. A four-year Varsity letter winner, he was a three-time First Team All-Conference selection, earning Second Team All-State honors as a sophomore and junior, and First Team All-State as a senior. Stiever was dominant on the mound, recording an 8-1 record with a 1.20 ERA as a junior, followed by a 7-1 record with a 1.90 ERA his senior year. 

Stiever continued his baseball career at Indiana University. Over three seasons at IU, Stiever finished with a career 3.56 ERA, recording 184 K’s over 217.2 innings. He had a 6.33 strikeout-to-walk ratio in his sophomore season, ranking first in the Big Ten Conference and 14th nationally. Stiever garnered First Team All-Big Ten Conference honors as a junior before declaring for the 2019 MLB Draft, where he was selected in the fifth round by the Chicago White Sox. Stiever pitched professionally for six years and made his major league debut on September 13, 2020, against the Detroit Tigers, where he pitched 3 ⅔ innings, allowing one run and striking out three. He was named MLB Pipeline’s White Sox Pitching Prospect of the Year in 2019. Stiever is the only Cedarburg graduate to ever appear in a major league baseball game.