J.P. Feyereisen Bio
Jonathon Paul Feyereisen (born February 7, 1993) is an American professional baseball pitcher who is currently a free agent. Over the course of his career, he has pitched in Major League Baseball for the Milwaukee Brewers, Tampa Bay Rays, Los Angeles Dodgers, and Arizona Diamondbacks. A right-handed reliever, Feyereisen made his MLB debut in 2020 and has been active in professional baseball since being drafted in 2014 by the Cleveland Indians.
Known professionally as J.P. Feyereisen, he has built a career as a versatile bullpen arm, spending time in middle relief and late-inning situations across multiple organizations. His path through the minors and majors has included trades, injuries, and comebacks, with stints in the Cleveland, New York Yankees, Milwaukee, Tampa Bay, Los Angeles, and Arizona systems. He continues to be regarded as a dependable strike-thrower at the Triple-A level.
Early Life and Background
Jonathon Paul Feyereisen was born on February 7, 1993, and grew up in the United States, where he developed a passion for baseball at a young age. He attended River Falls High School in River Falls, Wisconsin, where he played on the school’s baseball team and began drawing attention for his arm strength and competitive drive. His high school years laid the foundation for the disciplined work ethic that would later define his approach on the mound.
After graduating from River Falls High School, Feyereisen continued his baseball career at the University of Wisconsin at Stevens Point. During his time with the Pointer baseball program, he continued to refine his pitching mechanics and built the durability required for a long professional career. He also gained valuable summer experience playing collegiate baseball with the Wisconsin Rapids Rafters, a developmental league team that helped him adjust to the rigors of a long season.
Path to Baseball
Feyereisen’s path to professional baseball began in earnest when the Cleveland Indians selected him in the 16th round of the 2014 Major League Baseball draft. He signed with the Indians and was assigned to the Mahoning Valley Scrappers, where he made an immediate impression by pitching 17 scoreless innings and striking out 24 batters in his first professional season. That strong start established him as a relief pitcher to watch within Cleveland’s farm system.
In 2015, he moved up the ladder, playing for both the Lake County Captains and the Lynchburg Hillcats, where he posted a combined 1–1 record with 12 saves and a 2.08 earned run average in 47 and two-thirds innings, striking out 56 batters between the two teams. He began the 2016 season with the Akron RubberDucks, continuing his steady climb through the Indians’ minor league affiliates. On July 31, 2016, his career took a dramatic turn when Cleveland traded him, along with Clint Frazier, Justus Sheffield, and Ben Heller, to the New York Yankees in exchange for Andrew Miller.
J.P. Feyereisen Career
Early Career (2014–2016)
After joining the Yankees organization mid-2016, Feyereisen was assigned to the Trenton Thunder, where he finished that season. Across both Akron and Trenton in 2016, he pitched to a 7–3 record, recorded five saves, posted a 1.70 ERA, and maintained a 1.10 WHIP while striking out 78 batters in 58 and one-third innings. Those numbers marked him as one of the most effective relief prospects in the Yankees’ system.
New York Yankees System (2017–2019)
Feyereisen spent the 2017 season split between Trenton and the Scranton/Wilkes-Barre RailRiders, posting a combined 2–3 record with four saves and a 3.27 ERA in 63 and one-third innings. In 2018, he remained with Scranton/Wilkes-Barre, going 6–6 with one save and a 3.45 ERA across 60 innings. He returned to the RailRiders for the 2019 season, where he had his most dominant stretch, going 10–2 with seven saves, a 2.49 ERA, and 94 strikeouts in 61 innings.
On September 2, 2019, the Yankees traded Feyereisen to the Milwaukee Brewers in exchange for Brenny Escanio and international signing bonus pool money. He was later selected for the United States national baseball team for the 2019 WBSC Premier 12 tournament and was added to the Brewers’ 40-man roster that fall.
Milwaukee Brewers (2020–2021)
Feyereisen made the 2020 opening day roster for the Brewers and made his major league debut on July 24, 2020, against the Chicago Cubs. In that debut inning, he struck out former MVP Kris Bryant before giving up a solo home run to Anthony Rizzo. He appeared in six games that shortened season, posting a 5.79 ERA. In 2021, he appeared in 21 games for Milwaukee, going 0–2 with a 3.26 ERA and a 1.09 WHIP before being traded.
Tampa Bay Rays (2021–2022)
On May 21, 2021, the Brewers traded Feyereisen and Drew Rasmussen to the Tampa Bay Rays in exchange for Willy Adames and Trevor Richards. He made 34 appearances for the Rays that season, recording a 4–2 record and a 2.45 ERA. In 2022, he was dominant early, allowing just one unearned run in 24 and one-third innings and limiting opposing hitters to an .086 batting average before a shoulder injury in June ended his season. After the year, he underwent surgery to repair the labrum and rotator cuff in his right shoulder, and on December 13, 2022, he was designated for assignment by the Rays.
Los Angeles Dodgers (2022–2024)
On December 14, 2022, Tampa Bay traded Feyereisen to the Los Angeles Dodgers in exchange for minor league pitcher Jeff Belge. He spent all of 2023 rehabilitating from shoulder surgery and did not appear in a major league game. After the season, he agreed to a $770,000 contract with the Dodgers for 2024 in his first time in salary arbitration. He made his Dodgers debut on March 21, 2024, pitching one inning against the San Diego Padres in South Korea, before being optioned to the Triple-A Oklahoma City Baseball Club the next day. In 10 games for the Dodgers, he posted an 8.18 ERA with nine strikeouts across 11 innings, and on July 3 he was removed from the 40-man roster and sent outright to Oklahoma City. In 33 minor league games in 2024, he went 2–6 with a 5.48 ERA in 42 and two-thirds innings. Feyereisen elected free agency on October 10, 2024.
Arizona Diamondbacks (2025)
On March 15, 2025, Feyereisen signed a minor league contract with the Arizona Diamondbacks. He opened the year with the Triple-A Reno Aces, posting a 0.96 ERA in his first seven appearances. On April 19, the Diamondbacks selected his contract and added him to the active roster. In two appearances for Arizona, he logged an 0–1 record and a 9.00 ERA with two strikeouts over two innings before being designated for assignment on April 27.
Los Angeles Dodgers Second Stint (2025)
On May 1, 2025, the Dodgers claimed Feyereisen off waivers. He appeared in two games for Los Angeles, allowing three earned runs on eight hits and a walk in two innings. He also pitched 2 and two-thirds innings for the Triple-A Oklahoma City Comets, allowing two runs on six hits. On May 25, the Dodgers designated him for assignment, and he became a free agent two days later after rejecting an outright assignment to the minors.
J.P. Feyereisen Career Wins
Through the 2025 season, J.P. Feyereisen has posted an 8–7 win–loss record with a 3.27 career earned run average and 98 strikeouts in Major League Baseball. The bulk of his victories came during his time in the New York Yankees minor league system and his 2021 season with the Tampa Bay Rays, where he posted a 4–2 record and a 2.45 ERA in 34 appearances.
Major League Highlights
Feyereisen’s first major league win came during the 2021 season split between the Brewers and Rays, with the bulk of his success occurring in Tampa Bay. His most recent major league appearances came during his 2025 stints with the Arizona Diamondbacks and the Los Angeles Dodgers, though he did not record a decision in those brief call-ups.
J.P. Feyereisen Family
Personal Life
Public details about J.P. Feyereisen’s personal and family life are limited. He is known to have grown up in the River Falls, Wisconsin area and attended the University of Wisconsin at Stevens Point before beginning his professional baseball career.
2025 Season Performance
The 2025 season has been a turbulent year for J.P. Feyereisen. After signing a minor league deal with the Arizona Diamondbacks in March, he impressed at Triple-A Reno with a 0.96 ERA in his first seven appearances before earning a call-up to the big league roster in April. In two appearances for Arizona, however, he struggled to a 9.00 ERA and was designated for assignment on April 27.
Claimed off waivers by the Los Angeles Dodgers on May 1, Feyereisen made two more major league appearances but allowed three earned runs in two innings, leading to another designation for assignment on May 25. He became a free agent two days later after rejecting an outright assignment, leaving him once again in search of his next opportunity on the mound.
Despite the major league struggles, Feyereisen continued to show effectiveness in Triple-A, including a 0.96 ERA in his early Reno outings and steady work for the Oklahoma City Comets. His combination of upper-90s velocity and strike-throwing ability keeps him firmly on the radar for organizations in need of bullpen depth as the 2025 season continues.