Biography
Jason Raymond Alexander (born March 1, 1993) is an American professional baseball pitcher for the Athletics of Major League Baseball (MLB). He has previously played in MLB for the Milwaukee Brewers.
Amateur career
Alexander went to high school at Cardinal Newman High School, in Santa Rosa, California, and attended college at California State University, Long Beach and Menlo College.
Professional career
Los Angeles Angels
Alexander signed with the Los Angeles Angels as an undrafted free agent on June 19, 2017. He finished his first pro campaign having appeared in 18 games split between the Orem Owlz, Arizona League Angels, and High-A Inland Empire 66ers. He pitched to a cumulative 2–1 record and 3.50 ERA with 37 strikeouts in 43.2 innings of work. In 2018, Alexander split the year between Inland Empire, the Double-A Mobile BayBears, and Triple-A Salt Lake Bees. In 24 total games (21 starts), he pitched to a 4–10 record and 4.41 ERA with 95 strikeouts in 116.1 innings of work.
In 2019, he played with Mobile and Salt Lake, accumulating a 4–8 record and 6.66 ERA with 96 strikeouts in 101.1 innings pitched spanning 23 games (15 starts). Alexander did not play in a game in 2020 due to the cancellation of the minor league season because of the COVID-19 pandemic. On June 5, 2020, Alexander was released by the Angels.
Miami Marlins
On April 21, 2021, Alexander signed a minor league contract with the Miami Marlins. He spent the majority of his season with Triple-A Jacksonville Jumbo Shrimp. With scoreless appearances in a game apiece for the Florida Complex League Marlins and Double-A Pensacola Blue Wahoos, Alexander pitched to a 1.84 ERA with 18 strikeouts in 5 games (4 starts) for Jacksonville. He elected free agency following the season on November 7.
Milwaukee Brewers
On November 19, 2021, Alexander signed a minor league contract with the Milwaukee Brewers organization. He was assigned to the Triple-A Nashville Sounds to begin the 2022 season.
Alexander was promoted to the Major Leagues on June 1, and made his debut later that day. He finished the major league season with 18 appearences, 11 of which were starts, and a 5.90 ERA. In 2022 in Triple-A he was 8–2 with a 2.84 ERA in 63.1 innings.
On February 18, 2023, Alexander was placed on the 60-day injured list with a strained right rotator cuff. He was activated on July 8 and optioned to Triple–A Nashville. On July 24, Alexander was removed from the 40-man roster and sent outright to Triple–A. In 19 minor league games (11 starts), he posted a 2–4 record and 6.14 ERA with 44 strikeouts across 63.0 innings of work. Alexander elected free agency following the season on November 6.
Boston Red Sox
On February 27, 2024, Alexander signed a minor league contract with the Boston Red Sox. In 29 games (27 starts) for the Triple–A Worcester Red Sox, he compiled a 7–6 record and 4.42 ERA with 129 strikeouts across 138+1⁄3 innings pitched. Alexander elected free agency following the season on November 4.
Athletics
On November 15, 2024, Alexander signed a minor league contract with the Athletics. On April 7, 2025, the Athletics selected Alexander's contract, adding him to their active roster.
Personal life
Alexander's older brother, Scott, is also a major league pitcher.