List of Seattle Mariners Opening Day starting pitchers

The 15 starters have a combined Opening Day record of 15 wins, 13 losses (15–13) and 13 no decisions.

Jamie Moyer has the most starts in Safeco Field, the Mariners' current home ballpark, and has an Opening Day record of 1–2.

Mark Langston has the worst winning percentage as the Opening Day starting pitcher with a record of 0–3, all of which were pitched on the road.

[3] The Mariners went on to play in the American League Division Series (ALDS) playoff games in 1995, 1997, 2000, and 2001.

Randy Johnson, Jeff Fassero, Jamie Moyer, and Freddy García were the Opening Day starting pitchers those years, and had a combined Opening Day record of 2–1.

Félix Hernández , the 2007 and 2009-2018 Opening Day starter
Jamie Moyer , the 2000 and 2004–2006 Opening Day starter
Randy Johnson , the 1992–1996 and 1998 Opening Day starter