| Ryan Zeferjahn | |
| Team: | Los Angeles Angels |
| Number: | 56 |
| Position: | Pitcher |
| Birth Date: | 28 February 1998 |
| Birth Place: | Topeka, Kansas, U.S. |
| Bats: | Right |
| Throws: | Right |
| Debutleague: | MLB |
| Debutdate: | August 25 |
| Debutyear: | 2024 |
| Debutteam: | Los Angeles Angels |
| Statyear: | September 29, 2024 |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 0–0 |
| Stat2label: | Earned run average |
| Stat2value: | 2.12 |
| Stat3label: | Strikeouts |
| Stat3value: | 18 |
| Teams: |
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Ryan Joseph Zeferjahn (born February 28, 1998) is an American professional baseball pitcher for the Los Angeles Angels of Major League Baseball (MLB).
A native of Topeka, Kansas, Zeferjahn played college baseball at the University of Kansas.[1] In 2017, he played collegiate summer baseball with the Falmouth Commodores of the Cape Cod Baseball League.[2]
Zeferjahn was drafted by the Boston Red Sox in the third round, with the 107th overall selection, of the 2019 Major League Baseball draft.[3] [4] He made his professional debut with the Low–A Lowell Spinners, logging a 4.50 ERA in 12 starts. Zeferjahn did not play in a game in 2020 due to the cancellation of the minor league season because of the COVID-19 pandemic.[5]
Zeferjahn returned to action in 2021 with the rookie–level Florida Complex League Red Sox and Single–A Salem Red Sox. In 16 starts between the two affiliates, he compiled a 1–4 record and 5.98 ERA with 59 strikeouts across innings pitched.[6] Zeferjahn split the 2022 campaign between the High–A Greenville Drive and Double–A Portland Sea Dogs. In 34 appearances pitching mainly in relief, he accumulated a 5–4 record and 5.05 ERA with 80 strikeouts over innings pitched.[7]
Zeferjahn spent 2023 with Portland, also making two scoreless outings for Salem. In 34 appearances out of the bullpen for Portland, he recorded a 5.02 ERA with 68 strikeouts across 43 innings of work.[8] Zeferjahn began the 2024 season with Portland, and was promoted to the Triple–A Worcester Red Sox after seven scoreless appearances. In 18 games for Worcester, he registered a 5.47 ERA with 31 strikeouts and 4 saves over innings.[9]
On July 30, 2024, Zeferjahn, Matthew Lugo, Yeferson Vargas, and Niko Kavadas were traded to the Los Angeles Angels in exchange for Luis García.[10] In 5 games for the Triple–A Salt Lake Bees, he posted a 2.35 ERA with 8 strikeouts. On August 23, Zeferjahn was selected to the 40-man roster and promoted to the major leagues for the first time.[11]