Paul Stanton Sewald Bio
Paul Stanton Sewald is an American professional baseball pitcher who currently plays for the Arizona Diamondbacks of Major League Baseball. Born in Las Vegas, Nevada, Sewald has built a reliable career as a relief pitcher, serving as a closer for multiple organizations. He made his MLB debut with the New York Mets in 2017 and has since played for the Seattle Mariners, Arizona Diamondbacks, Cleveland Guardians, and Detroit Tigers before returning to Arizona in 2026. Sewald played college baseball for the San Diego Toreros and was drafted by the Mets in the tenth round of the 2012 MLB Draft.
Early Life and Background
Paul Stanton Sewald grew up in Las Vegas, Nevada, where he attended Bishop Gorman High School. During his senior year in 2008, Sewald emerged as a standout pitcher, compiling a 7–0 win–loss record with a 1.57 earned run average. His exceptional performance earned him All-State honors, signaling his potential as a future professional player. Despite his impressive high school career, Sewald went undrafted in the 2008 Major League Baseball Draft.
Following high school, Sewald enrolled at the University of San Diego, where he played college baseball for the San Diego Toreros. As a senior in 2012, he demonstrated his talent on the mound, posting an 8–4 record with a 3.09 earned run average across 15 games and 14 starts. Beyond his athletic pursuits, Sewald earned a bachelor’s degree in accounting from the university. His father, Mark Sewald, was a former college baseball pitcher who was drafted by the Boston Red Sox out of high school in 1979, giving Paul baseball lineage in his family. His parents worked as accountants.
Path to Professional Baseball
After going undrafted following high school, Sewald waited four years before hearing his name called in the 2012 MLB Draft. The New York Mets selected him in the tenth round with the 320th overall selection. The organization offered him a $1,000 signing bonus, a modest investment that would eventually yield a durable major league reliever. Sewald made his professional debut that same season with the Brooklyn Cyclones of the Low-A New York-Penn League, where he appeared in relief and posted a 1.88 earned run average over 28 and two-thirds innings.
His progression through the minor leagues continued steadily. In 2013 with the Savannah Sand Gnats, Sewald went 3–2 with a 1.77 earned run average in 35 relief appearances. He advanced to the High-A Florida State League with St. Lucie Mets in 2014 before earning a promotion to Double-A Binghamton, combining for a 5–1 record and 1.92 earned run average in 43 appearances. That offseason, he gained additional experience in the Arizona Fall League. In 2015, Sewald continued his strong minor league performance at Binghamton, going 3–0 with a 1.75 earned run average in 44 games. During that summer, he represented the United States national baseball team at the 2015 Pan American Games in Toronto, where he earned a silver medal.
Paul Stanton Sewald Career
New York Mets (2017–2020)
On April 8, 2017, the Mets promoted Sewald to the major leagues for the first time. He made his MLB debut that same day against the Miami Marlins at Citi Field, though he allowed two runs in a third of an inning. The team optioned him back to Triple-A Las Vegas on April 13 before recalling him again on May 1. Sewald spent the remainder of the 2017 season with New York, appearing in 57 relief games where he went 0–6 with a 4.55 earned run average and a 1.21 WHIP.
The following seasons brought challenges and eventual triumph. On May 26, 2019, the Mets designated Sewald for assignment, though they soon returned him to the active roster. Then on September 24, 2019, Sewald achieved his first MLB win in dramatic fashion during a walk-off victory against the Miami Marlins. This win ended his streak of 118 major-league appearances without a win, the second-longest such streak in MLB history. It also concluded his 14-game losing streak, marking the longest losing streak to start a career in National League history. In 2020, Sewald struggled significantly, posting a 13.50 earned run average over just six innings of work. On December 2, 2020, the Mets non-tendered him, making him a free agent.
Seattle Mariners Breakthrough (2021–2023)
On January 7, 2021, Sewald signed a minor league contract with the Seattle Mariners organization. He began the season with Triple-A Tacoma Rainiers, initially struggling before finding his form approximately a week into the season. He recorded 10 strikeouts in four and one-third innings during one notable stretch. On May 13, 2021, the Mariners selected him to the active roster, and he earned the win in his debut appearance while striking out four batters.
Sewald experienced a breakout season in 2021, transforming into what commentators described as a force and the biggest surprise star of Seattle’s bullpen. His improved pitch usage and command elevated his performance dramatically. He finished the season with a 10–3 record, a 3.06 earned run average, and 104 strikeouts across 62 games and 64 and two-thirds innings. The following year, Sewald continued thriving with the Mariners, compiling a 5–4 record, a 2.67 earned run average, and 20 saves in 64 innings. During a May 2022 game against his former team at Citi Field, Sewald escaped a high-pressure situation and worked a clean inning against the top of the Mets lineup in an eventual 2–1 victory. He later acknowledged that the Mets had given up on him and expressed satisfaction at proving their assessment wrong.
Arizona Diamondbacks and Mid-Career Moves (2023–2025)
On July 31, 2023, the Mariners traded Sewald to the Arizona Diamondbacks in exchange for Ryan Bliss, Dominic Canzone, and Josh Rojas. In 20 regular season appearances for Arizona, he recorded a 3.57 earned run average with 20 strikeouts and converted 13 of 15 save opportunities across 17 and two-thirds innings. Sewald served as Arizona’s primary closer throughout their postseason run to the 2023 World Series, recording eight consecutive scoreless playoff appearances. In Game 1 of the World Series against the Texas Rangers, he surrendered a two-run home run to Corey Seager in the ninth inning, blowing his first save opportunity of the postseason as the Diamondbacks lost in extra innings. He returned in Game 5, allowing four runs in a non-save situation as Arizona dropped the game and the series.
The 2024 season began with Sewald missing time due to an oblique strain. Upon returning, he performed exceptionally, converting 11 consecutive save opportunities while posting a 0.54 earned run average. However, after multiple blown saves and an inflated 4.23 earned run average, manager Torey Lovullo removed him from the closer role on August 2, 2024. On January 22, 2025, Sewald signed a one-year, $7 million contract with the Cleveland Guardians, including a mutual option for 2026. He appeared in 18 games for Cleveland, posting a 1–1 record with a 4.70 earned run average, 18 strikeouts, and two saves across 15 and one-third innings. On July 15, 2025, the Guardians placed him on the injured list due to a right shoulder strain.
Detroit Tigers and Return to Arizona (2025–Present)
On July 31, 2025, the Detroit Tigers acquired Sewald in a trade for a player to be named later or cash considerations. He remained on the injured list until September 18, 2025, when he was activated for his Tigers debut. In four appearances for Detroit, Sewald recorded a 4.15 earned run average with two strikeouts across four and one-third innings. The Tigers declined his 2026 option on November 6, making him a free agent. On February 14, 2026, Sewald signed a one-year, $1.5 million contract to return to the Arizona Diamondbacks, beginning his second stint with the organization.
Driving Style and Strengths
Sewald has established himself as a durable relief option capable of handling high-leverage situations. His ability to miss bats, evident in his career strikeout totals, has enabled him to serve effectively as a closer for multiple franchises. His adaptability proved crucial during his breakout campaign with Seattle, where improved pitch selection transformed him from a situational arm into a dominant force. Throughout his career, Sewald has demonstrated the mental toughness required to bounce back from difficult outings, including his historic winless streak early in his career.
Notable Events and Milestones
Sewald’s career includes several memorable moments that highlight his resilience. His first MLB win on September 24, 2019, ended one of the longest winless streaks to begin a career in baseball history. The 2023 postseason with Arizona showcased his ability to perform under pressure, recording eight consecutive scoreless appearances as the team reached the World Series. With 105 career saves across his MLB tenure and over 500 career strikeouts, Sewald has built a reputation as a reliable late-inning option who can be counted on in crucial moments.
Paul Stanton Sewald Career Wins
Across his MLB career through June 29, 2026, Paul Stanton Sewald has compiled a win–loss record of 23–30 with a 4.14 earned run average, 503 strikeouts, and 105 saves. His journey from an undrafted high school prospect to a dependable major league reliever spans multiple organizations and includes memorable playoff performances.
Major League Baseball Highlights
Sewald’s most productive MLB season came in 2021 with Seattle, where he went 10–3 with a 3.06 earned run average and 104 strikeouts in 62 appearances. He followed that with an equally impressive 2022 campaign, recording five wins, 20 saves, and a 2.67 earned run average. His time with Arizona in 2023 and 2024 demonstrated his value as a closer, converting 24 total saves while helping the Diamondbacks reach the postseason. His international success includes a silver medal with Team USA at the 2015 Pan American Games.
Minor League and Amateur Achievements
Before reaching the majors, Sewald built an impressive minor league record. His 2014 season between Single-A and Double-A saw him go 5–1 with a 1.92 earned run average in 43 relief appearances. In 2015, he posted a 3–0 record with a 1.75 earned run average in 44 games for Binghamton while earning his Pan American Games silver medal. His collegiate career at San Diego concluded with an 8–4 senior season, and his high school career featured a perfect 7–0 record with All-State honors in Nevada.
| Competition Level | Wins | Losses | Saves | Strikeouts |
|---|---|---|---|---|
| MLB (Career through 2026) | 23 | 30 | 105 | 503 |
| 2021 MLB Season | 10 | 3 | 0 | 104 |
| 2022 MLB Season | 5 | 4 | 20 | — |
Paul Stanton Sewald Family
Family Background and Baseball Lineage
Paul Stanton Sewald comes from a baseball family with strong athletic connections. His father, Mark Sewald, was a college baseball pitcher who was drafted by the Boston Red Sox out of high school in 1979. This family legacy provided Paul with early exposure to the sport and valuable mentorship throughout his development. Both of his parents worked as accountants, offering a stable foundation as Paul pursued his baseball ambitions.
Sewald has a younger brother, Johnny Sewald, who followed a baseball path of his own. Johnny, an outfielder, was selected in the 14th round of the 2015 MLB Draft by the Houston Astros out of Arizona State University. The brothers share the sport professionally, though Johnny’s career has developed in a different direction as a position player rather than a pitcher.
Personal Life
Sewald met his wife, Molly, while he was pitching in the Arizona Fall League. At that time, Molly was attending Arizona State University. The couple married and built their life together as Paul continued his baseball career across multiple cities. Their first child, a daughter, was born in August 2021. The Sewald family has navigated the demands of professional baseball together, supporting Paul through his various team assignments and career milestones.
2025 Season Performance
The 2025 season presented Paul Stanton Sewald with significant challenges and transitions. After signing a one-year, $7 million contract with the Cleveland Guardians in January, Sewald appeared in 18 games before the midseason trade deadline. He posted a 1–1 record with an 4.70 earned run average, recording 18 strikeouts and converting two save opportunities across 15 and one-third innings pitched. His tenure with Cleveland ended abruptly on July 15 when the Guardians placed him on the injured list due to a right shoulder strain.
The Tigers acquired Sewald from Cleveland on July 31, 2025, sending a player to be named later or cash considerations to the Guardians. His recovery from the shoulder injury delayed his Tigers debut until September 18, 2025. In his brief time with Detroit, Sewald appeared in four games, allowing one earned run on four hits with two strikeouts across four and one-third innings. The Tigers declined his 2026 option following the season, making him a free agent.
Despite the injury setbacks and roster changes, Sewald demonstrated resilience by returning to pitch at the major league level after his shoulder strain. His ability to recover and secure a contract with Arizona in February 2026 indicated his continued determination to contribute at the highest level of baseball. The 2025 campaign served as a test of his durability, but his performance history and track record as a reliable closer kept teams interested in his services.