Players who played for the New York Mets and Seattle Mariners
86 players
86 players have played for both the New York Mets and the Seattle Mariners. Wally Backman spent the most seasons with the two: 9 with the New York Mets and 1 with the Seattle Mariners. On a roster now: Edwin Diaz, Luis Torrens, Paul Sewald, Matt Festa, and Yohan Ramirez. Every season since 1876 is on file.
| Player | Pos | NYM | SEA |
|---|---|---|---|
| Wally Backman | 3B | 1980–1988 · 9 seasons | 1993 · 1 season |
| Edwin Diaz | RP | 2019–2025 · 6 seasons | 2016–2018 · 3 seasons |
| Robinson Cano | 2B | 2019–2022 · 3 seasons | 2014–2018 · 5 seasons |
| John Olerud | 1B | 1997–1999 · 3 seasons | 2000–2004 · 5 seasons |
| Luis Torrens | C | 2024–2026 · 3 seasons | 2020–2023 · 4 seasons |
| Paul Sewald | RP | 2017–2020 · 4 seasons | 2021–2023 · 3 seasons |
| Taijuan Walker | SP | 2021–2022 · 2 seasons | 2013–2020 · 5 seasons |
| Rene Rivera | C | 2016–2020 · 4 seasons | 2004–2006 · 3 seasons |
| Jason Vargas | SP | 2007–2019 · 3 seasons | 2009–2012 · 4 seasons |
| Oliver Perez | RP | 2006–2010 · 5 seasons | 2012–2013 · 2 seasons |
| J.J. Putz | RP | 2009 · 1 season | 2003–2008 · 6 seasons |
| Mackey Sasser | C | 1988–1992 · 5 seasons | 1993–1994 · 2 seasons |
| Sam Haggerty | LF | 2019 · 1 season | 2020–2024 · 5 seasons |
| Chris Flexen | RP | 2017–2019 · 3 seasons | 2021–2023 · 3 seasons |
| Erasmo Ramirez | RP | 2020 · 1 season | 2012–2018 · 5 seasons |
| Endy Chavez | RF | 2006–2008 · 3 seasons | 2009–2014 · 3 seasons |
| Jeremy T Reed | LF | 2009 · 1 season | 2004–2008 · 5 seasons |
| Mike Cameron | CF | 2004–2005 · 2 seasons | 2000–2003 · 4 seasons |
| Steve Henderson | RF | 1977–1980 · 4 seasons | 1983–1984 · 2 seasons |
| Justin Turner | 1B | 2010–2013 · 4 seasons | 2024 · 1 season |
| Matt Festa | RP | 2024 · 1 season | 2018–2023 · 4 seasons |
| Erik Goeddel | RP | 2014–2017 · 4 seasons | 2018 · 1 season |
| Miguel Batista | SP | 2011–2012 · 2 seasons | 2007–2009 · 3 seasons |
| Rob Johnson | C | 2012 · 1 season | 2007–2010 · 4 seasons |
| Sean Green | RP | 2009–2010 · 2 seasons | 2006–2008 · 3 seasons |
| Ben Gamel | RF | 2024 · 1 season | 2016–2018 · 3 seasons |
| Yohan Ramirez | RP | 2024 · 1 season | 2020–2022 · 3 seasons |
| Tommy Milone | SP | 2017 · 1 season | 2019–2023 · 3 seasons |
| Eric Campbell | 1B | 2014–2016 · 3 seasons | 2021 · 1 season |
| Jay Bruce | LF | 2016–2018 · 3 seasons | 2019 · 1 season |
| Eric O'Flaherty | RP | 2015 · 1 season | 2006–2008 · 3 seasons |
| Jason Bay | LF | 2010–2012 · 3 seasons | 2013 · 1 season |
| R.A. Dickey | SP | 2010–2012 · 3 seasons | 2008 · 1 season |
| Chris Woodward | 1B | 2005–2006 · 2 seasons | 2009–2010 · 2 seasons |
| Aaron Sele | RP | 2007 · 1 season | 2000–2005 · 3 seasons |
| Carl Everett | DH | 1995–1997 · 3 seasons | 2006 · 1 season |
| Tim Leary | RP | 1981–1984 · 3 seasons | 1993 · 1 season |
| Brian Giles | SS | 1981–1983 · 3 seasons | 1990 · 1 season |
| Lenny Randle | DH | 1977–1978 · 2 seasons | 1981–1982 · 2 seasons |
| Leroy Stanton | — | 1970–1971 · 2 seasons | 1977–1978 · 2 seasons |
| Jorge Polanco | DH | 2026 · 1 season | 2024–2025 · 2 seasons |
| Jesse Winker | LF | 2024–2025 · 2 seasons | 2022 · 1 season |
| Ryne Stanek | RP | 2024–2025 · 2 seasons | 2024 · 1 season |
| Travis Jankowski | CF | 2022–2025 · 2 seasons | 2022 · 1 season |
| Abraham Almonte | OF | 2023 · 1 season | 2013–2014 · 2 seasons |
| Austin Jackson | CF | 2018 · 1 season | 2014–2015 · 2 seasons |
| Chris Young | SP | 2011–2012 · 2 seasons | 2014 · 1 season |
| David Aardsma | RP | 2013 · 1 season | 2009–2010 · 2 seasons |
| Scott Atchison | RP | 2013 · 1 season | 2004–2005 · 2 seasons |
| Garrett Olson | SP | 2012 · 1 season | 2009–2010 · 2 seasons |
| Roberto Petagine | 1B | 1996–1997 · 2 seasons | 2006 · 1 season |
| Josias Manzanillo | RP | 1994–1999 · 2 seasons | 1997 · 1 season |
| Mike Maddux | RP | 1993–1994 · 2 seasons | 1997 · 1 season |
| Kevin Mitchell | DH | 1984–1986 · 2 seasons | 1992 · 1 season |
| John Christensen | RF | 1984–1985 · 2 seasons | 1987 · 1 season |
| Tommy Moore | P | 1972–1973 · 2 seasons | 1977 · 1 season |
| Carl Edwards Jr. | RP | 2026 · 1 season | 2020 · 1 season |
| Luke Weaver | RP | 2026 · 1 season | 2023 · 1 season |
| Jose Castillo | RP | 2025 · 1 season | 2025 · 1 season |
| Vinny Nittoli | RP | 2023 · 1 season | 2021 · 1 season |
| Cameron Maybin | LF | 2021 · 1 season | 2018 · 1 season |
| Hector Santiago | RP | 2019 · 1 season | 2021 · 1 season |
| Anthony Swarzak | RP | 2018 · 1 season | 2019 · 1 season |
| Keon Broxton | CF | 2019 · 1 season | 2019 · 1 season |
| Norichika Aoki | RF | 2017 · 1 season | 2016 · 1 season |
| Justin Ruggiano | RF | 2016 · 1 season | 2015 · 1 season |
| John Buck | C | 2013 · 1 season | 2014 · 1 season |
| Aaron Harang | SP | 2013 · 1 season | 2013 · 1 season |
| Aaron Laffey | SP | 2013 · 1 season | 2011 · 1 season |
| Henry Blanco | C | 2010 · 1 season | 2013 · 1 season |
| Kelly Shoppach | C | 2012 · 1 season | 2013 · 1 season |
| Ronny Cedeno | SS | 2012 · 1 season | 2009 · 1 season |
| Wilson Valdez | SS | 2009 · 1 season | 2005 · 1 season |
| Miguel Cairo | 1B | 2005 · 1 season | 2008 · 1 season |
| Rick White | RP | 2001 · 1 season | 2007 · 1 season |
| James Baldwin | RP | 2004 · 1 season | 2002 · 1 season |
| Rey Sanchez | 2B | 2003 · 1 season | 2003 · 1 season |
| Desi Relaford | SS | 2001 · 1 season | 2002 · 1 season |
| Brett Hinchliffe | SP | 2001 · 1 season | 1999 · 1 season |
| Mike Hampton | SP | 2000 · 1 season | 1993 · 1 season |
| David Segui | DH | 1994 · 1 season | 1998 · 1 season |
| Gary Thurman | CF | 1997 · 1 season | 1995 · 1 season |
| Eric Gunderson | RP | 1994 · 1 season | 1992 · 1 season |
| Fernando Vina | 2B | 1994 · 1 season | 1993 · 1 season |
| Ross Jones | SS | 1984 · 1 season | 1986 · 1 season |
| Bobby Valentine | — | 1978 · 1 season | 1979 · 1 season |
Regular season, under every name each club has played as. A season split by a trade counts for both clubs where the game logs reach it (NBA from 1993-94, NFL 1994, NHL 1996, MLB 2001). Longest stay with the two first.