Veteran hitter posted a .276 average and .804 OPS with Boston since 2022
SEATTLE – Seattle Mariners Executive Vice President & General Manager of Baseball Operations Justin Hollander announced today that the club has signed outfielder/first baseman Rob Refsnyder to a one-year Major League contract through the 2026 season.
“Rob has been one of the most productive hitters against left-handed pitching over the last four seasons and brings balance and impact to our lineup,” Hollander said. “We’re thrilled to welcome Rob and his family to the Mariners.”
With the signing, the Mariners’ 40-man roster is now full.
Refsnyder, 34, enters his 11th Major League season after spending the past four years with the Boston Red Sox. The right-handed hitter has also appeared with the New York Yankees (2015–17), Toronto Blue Jays (2017), Tampa Bay Rays (2018), Texas Rangers (2020), and Minnesota Twins (2021).
During his tenure in Boston, Refsnyder batted .276 (223-for-809) with 117 runs scored, 48 doubles, two triples, 27 home runs, 119 RBI, and 100 walks, producing an .804 OPS and 123 OPS+ over four seasons.
Since 2022, he has been one of MLB’s most effective hitters against left-handed pitching, posting a .312 average (133-for-426) with 28 doubles, 19 home runs, 77 RBI, and 64 walks. His .407 OBP, .516 SLG, and .924 OPS vs. lefties rank among the league’s best during that span (min. 400 plate appearances), including the third-highest OBP behind Aaron Judge and Paul Goldschmidt.
A standout at Laguna Hills High School (CA) and later the University of Arizona, Refsnyder was selected by the Yankees in the 5th round of the 2012 MLB Draft. He helped lead the Wildcats to the College World Series title in 2012 and was named the tournament’s Most Outstanding Player.
Born in Seoul, South Korea, Refsnyder becomes the fourth Korean-born player in Mariners history, joining Shin-Soo Choo (2005–06), Cha-Seung Baek (2007), and Dae-ho Lee (2016).
