The 2015 Seattle Mariners season was the 39th season in franchise history. The Mariners played their 16th full season (17th overall) at Safeco Field and finished the season with a record of 76–86.
The Mariners signed slugger Nelson Cruz in the offseason and expected to contend. However, the team fell under .500 for good in May. The team fired general manager Jack Zduriencik on August 28. During his seven-year tenure in Seattle, the Mariners had the fifth-worst record in baseball. After Jeff Kingston served as interim general manager, the team hired Jerry Dipoto on September 28. Manager Lloyd McClendon was fired in October.
The Mariners played 23 extra-inning games during the season, the most of any MLB team in 2015.
Offseason December 1, 2014: Nelson Cruz signed a four-year, $57 million contract. December 3: Traded Michael Saunders to the Toronto Blue Jays for J. A. Happ. December 30: Traded Brandon Maurer to the San Diego Padres for Seth Smith. January 15, 2015: Received Mike Kickham in a year with the Chicago Cubs for Lars Huijer. January 22: Shawn O'Malley signed a minor league contract. January 26: Endy Chávez and Franklin Gutiérrez signed minor league contracts. February 13: Rickie Weeks Jr. signed a one-year, $2 million contract. March 31: Traded Erasmo Ramírez to the Tampa Bay Rays for Mike Montgomery. April 2: Joe Beimel signed a minor league contract. The Mariners also acquiredTony Zych from the Cubs for $1.
Regular season Standings
American League West
American League Wild Card
Record against opponents
Season summary
On April 19, newly signed Nelson Cruz hit a walk-off single and two home runs against his former team, the Texas Rangers, as part of a five-run comeback. Cruz was named the American League (AL) Player of the Month in April. On May 27, Cruz hit a three-run home run into the stingray tank at Tropicana Field to sweep the Tampa Bay Rays and move the Mariners up to .500.
Rookie starting pitcher Mike Montgomery threw consecutive shutouts in June, besting the Kansas City Royals and San Diego Padres.
Cruz and Félix Hernández were named to the MLB All-Star Game.
The Mariners turned a triple play against the Toronto Blue Jays on July 26. Hisashi Iwakuma threw a no-hitter on August 12 against the Baltimore Orioles.
On August 28, general manager (GM) Jack Zduriencik was fired. Jeff Kingston was named interim GM, with Jerry Dipoto hired for the role a month later. Dipoto fired manager Lloyd McClendon after the season.
Cruz won his first Silver Slugger Award.
Game log
|- bgcolor="bbffbb" | 1 || April 6 || Angels || 4–1 || Hernández (1–0) || Weaver (0–1) || Rodney (1) || 45,909 || 1–0 |- bgcolor="ffbbbb" | 2 || April 7 || Angels || 0–2 || Wilson (1–0) || Paxton (0–1) || Street (1) || 26,545 || 1–1 |- bgcolor="ffbbbb" | 3 || April 8 || Angels || 3–5 || Shoemaker (1–0) || Iwakuma (0–1) || Street (2) || 25,495 || 1–2 |- bgcolor="ffbbbb" | 4 || April 10 || @ Athletics || 0–12 || Pomeranz (1–0) || Walker (0–1) || — || 30,114 || 1–3 |- bgcolor="bbffbb" | 5 || April 11 || @ Athletics || 5–4 (11) || Olson (1–0) || Abad (0–1) || Rodney (2) || 24,355 || 2–3 |- bgcolor="bbffbb" | 6 || April 12 || @ Athletics || 8–7 (10) || Rodney (1–0) || Clippard (0–1) || Medina (1) || 32,282 || 3–3 |- bgcolor="ffbbbb" | 7 || April 13 || @ Dodgers || 5–6 (10) || Garcia (1–0) || Leone (0–1) || — || 42,202 || 3–4 |- bgcolor="ffbbbb" | 8 || April 14 || @ Dodgers || 5–6 || Garcia (2–0) || Rodney (1–1) || — || 43,115 || 3–5 |- bgcolor="ffbbbb" | 9 || April 15 || @ Dodgers || 2–5 || Anderson (1–0) || Walker (0–2) || — || 51,287 || 3–6 |- bgcolor="ffbbbb" | 10 || April 17 || Rangers || 1–3 || Gallardo (2–1) || Happ (0–1) || Feliz (2) || 36,606 || 3–7 |- bgcolor="bbffbb" | 11 || April 18 || Rangers || 3–1 || Hernández (2–0) || Lewis (1–1) || Rodney (3) || 43,017 || 4–7 |- bgcolor="bbffbb" | 12 || April 19 || Rangers || 11–10 || Medina (1–0) || Feliz (0–1) || — || 31,601 || 5–7 |- bgcolor="ffbbbb" | 13 || April 20 || Astros || 5–7 || Sipp (1–0) || Farquhar (0–1) || Gregerson (3) || 15,129 || 5–8 |- bgcolor="ffbbbb" | 14 || April 21 || Astros || 3–6 || McHugh (3–0) || Furbush (0–1) || Qualls (1) || 13,949 || 5–9 |- bgcolor="bbffbb" | 15 || April 22 || Astros || 3–2 || Happ (1–1) || Hernández (0–2) || Rodney (4)|| 14,756 || 6–9 |- bgcolor="bbffbb" | 16 || April 24 || Twins || 2–0 || Hernández (3–0) || Hughes (0–4) || — || 25,215 || 7–9 |- bgcolor="ffbbbb" | 17 || April 25 || Twins || 5–8 || Stauffer (1–0) || Paxton (0–2) || Perkins (4) || 33,566 || 7–10 |- bgcolor="ffbbbb" | 18 || April 26 || Twins || 2–4 (11) || Fien (1–1) || Olson (1–1) || Perkins (5) || 35,242 || 7–11 |- bgcolor="bbffbb" | 19 || April 27 || @ Rangers || 3–1 || Walker (1–2) || Gallardo (2–3) || Rodney (5) || 19,748 || 8–11 |- bgcolor="bbffbb" | 20 || April 28 || @ Rangers || 2–1 || Happ (2–1) || Detwiler (0–3) || Rodney (6) || 23,714 || 9–11 |- bgcolor="bbffbb" | 21 || April 29 || @ Rangers || 5–2 || Hernández (4–0) || Rodríguez (0–1) || Rodney (7) || 26,037 || 10–11 |- bgcolor="ffbbbb" | 22 || April 30 || @ Astros || 2–3 (10) || Gregerson (2–0) || Leone (0–2) || — || 19,108 || 10–12
|- bgcolor="ffbbbb" | 23 || May 1 || @ Astros || 3–4 || Fields (1–0) || Elias (0–1) || Gregerson (5) || 21,834 || 10–13 |- bgcolor="ffbbbb" | 24 || May 2 || @ Astros || 4–11 || McHugh (4–0) || Walker (1–3) || — || 24,435 || 10–14 |- bgcolor="ffbbbb" | 25 || May 3 || @ Astros || 6–7 || Neshek (2–0) || Smith (0–1) || Gregerson (6) || 25,283 || 10–15 |- bgcolor="bbffbb" | 26 || May 4 || @ Angels || 3–2 || Hernández (5–0) || Shoemaker (2–2) || Rodney (8) || 25,024 || 11–15 |- bgcolor="ffbbbb" | 27 || May 5 || @ Angels || 4–5 || Street (1–0) || Leone (0–3) || — || 33,394 || 11–16 |- bgcolor="ffbbbb" | 28 || May 6 || @ Angels || 3–4 || Street (2–0) || Smith (0–2) || — || 25,160 || 11–17 |- bgcolor="bbffbb" | 29 || May 8 || Athletics || 4–3 (11) || Smith (1–2) || Otero (2–2) || — || 25,187 || 12–17 |- bgcolor="bbffbb" | 30 || May 9 || Athletics || 7–2 || Happ (3–1) || Hahn (1–3) || — || 37,441 || 13–17 |- bgcolor="bbffbb" | 31 || May 10 || Athletics || 4–3 || Hernández (6–0) || Chavez (1–3) || Rodney (9) || 42,831 || 14–17 |- bgcolor="bbffbb" | 32 || May 12 || Padres || 11–4 || Paxton (1–2) || Kennedy (2–2) || — || 16,148 || 15–17 |- bgcolor="ffbbbb" | 33 || May 13 || Padres || 2–4 || Shields (5–0) || Walker (1–4) || Kimbrel (10) || 14,547 || 15–18 |- bgcolor="ffbbbb" | 34 || May 14 || Red Sox || 1–2 || Barnes (2–0) || Rodney (1–2) || Uehara (8) || 20,172 || 15–19 |- bgcolor="bbffbb" | 35 || May 15 || Red Sox || 2–1 || Wilhelmsen (1–0) || Layne (0–1) || — || 39,477 || 16–19 |- bgcolor="ffbbbb" | 36 || May 16 || Red Sox || 2–4 || Porcello (4–2) || Hernández (6–1) || Uehara (9) || 45,055 || 16–20 |- bgcolor="bbffbb" | 37 || May 17 || Red Sox || 5–0 || Paxton (2–2) || Wright (1–1) || — || 39.936 || 17–20 |- bgcolor="ffbbbb" | 38 || May 19 || @ Orioles || 4–9 || González (5–2) || Farquhar (0–2) || — || 19,494 || 17–21 |- bgcolor="bbffbb" | 39 || May 20 || @ Orioles || 4–2 || Elias (1–1) || Chen (1–3) || Rodney (10) || 21,710 || 18–21 |- bgcolor="ffbbbb" | 40 || May 21 || @ Orioles || 4–5 || Hunter (2–1) || Farquhar (0–3) || Britton (9) || 33,085 || 18–22 |- bgcolor="bbffbb" | 41 || May 22 || @ Blue Jays || 4–3 || Hernández (7–1) || Estrada (1–3) || Rodney (11) || 21,195 || 19–22 |- bgcolor="bbffbb" | 42 || May 23 || @ Blue Jays || 3–2 || Paxton (3–2) || Buehrle (5–4) || Rodney (12) || 33,086 || 20–22 |- bgcolor="ffbbbb" | 43 || May 24 || @ Blue Jays || 2–8 || Sanchez (4–4) || Walker (1–5) || — || 37,929 || 20–23 |- bgcolor="bbffbb" | 44 || May 25 || @ Rays || 4–1 || Elias (2–1) || Odorizzi (3–5) || Rodney (13) || 10,401 || 21–23 |- bgcolor="bbffbb" | 45 || May 26 || @ Rays || 7–6 (10) || Rodney (2–2) || Boxberger (2–2) || Beimel (1) || 9,628 || 22–23 |- bgcolor="bbffbb" | 46 || May 27 || @ Rays || 3–0 || Hernández (8–1) || Boxberger (2–3) || — || 10,365 || 23–23 |- bgcolor="ffbbbb" | 47 || May 28 || Indians || 3–5 || Kluber (3–5) || Paxton (3–3) || Allen (10) || 19,449 || 23–24 |- bgcolor="bbffbb" | 48 || May 29 || Indians || 2–1 || Walker (2–5) || Bauer (4–2) || Rodney (14) || 32,454 || 24–24 |- bgcolor="ffbbbb" | 49 || May 30 || Indians || 3–4 || Marcum (2–0) || Elias (2–2) || Allen (11) || 32,287 || 24–25 |- bgcolor="ffbbbb" | 50 || May 31 || Indians || 3–6 (12) || McAllister (1-2) || Leone (0-4) || Adams (1) || 32,112 || 24–26
|- bgcolor="ffbbbb" | 51 || June 1 || Yankees || 2–7 || Pineda (7–2) || Hernández (8–2) || — || 26,082 || 24–27 |- bgcolor="ffbbbb" | 52 || June 2 || Yankees || 3–5 (11) || Wilson (2–0) || Wilhelmsen (1–1) || Miller (16) || 27,442 || 24–28 |- bgcolor="ffbbbb" | 53 || June 3 || Yankees || 1–3 || Tanaka (3–1) || Walker (2–6) || Miller (17) || 32,701 || 24–29 |- bgcolor="ffbbbb" | 54 || June 4 || Rays || 1–2 || Ramírez (4–2) || Elías (2–3) || Jepsen (2) || 16,096 || 24–30 |- bgcolor="ffbbbb" | 55 || June 5 || Rays || 0–1 || Bellatti (2–0) || Rodney (2–3) || Jepsen (3) || 20,695 || 24–31 |- bgcolor="bbffbb" | 56 || June 6 || Rays || 2–1 || Hernández (9–2) || Geltz (1–2) || Smith (1) || 31,106 || 25–31 |- bgcolor="ffbbbb" | 57 || June 7 || Rays || 1–3 || Archer (7–4) || Montgomery (0–1) || Jepsen (4) || 27,906 || 25–32 |- bgcolor="bbffbb" | 58 || June 9 || @ Indians || 3–2 || Elias (3–3) || Kluber (3–7) || Smith (2) || 11,425 || 26–32 |- bgcolor="bbffbb" | 59 || June 10 || @ Indians || 9–3 || Walker (3–6) || Bauer (5–3) || — || 12,305 || 27–32 |- bgcolor="ffbbbb" | 60 || June 11 || @ Indians || 0–6 || Marcum (3–1) || Happ (3–2) || — || 15,316 || 27–33 |- bgcolor="ffbbbb" | 61 || June 12 || @ Astros || 0–10 || Oberholtzer (1–1) || Hernández (9–3) || — || 32,173 || 27–34 |- bgcolor="bbffbb" | 62 || June 13 || @ Astros || 8–1 || Montgomery (1–1) || McHugh (6–3) || — || 36,762 || 28–34 |- bgcolor="ffbbbb" | 63 || June 14 || @ Astros || 0–13 || McCullers (3–1) || Elias (3–4) || — || 29,153 || 28–35 |- bgcolor="bbffbb" | 64 || June 15 || @ Giants || 5–1 || Walker (4–6) || Hudson (4–6) || — || 42,099 || 29–35 |- bgcolor="ffbbbb" | 65 || June 16 || @ Giants || 2–6 || Lincecum (7–3) || Happ (3–3) || — || 41,267 || 29–36 |- bgcolor="bbffbb" | 66 || June 17 || Giants || 2–0 || Hernández (10–3) || Bumgarner (7–4) || Smith (3) || 34,844 || 30–36 |- bgcolor="ffbbbb" | 67 || June 18 || Giants || 0–7 || Vogelsong (5–5) || Montgomery (1–2) || — || 34,354 || 30–37 |- bgcolor="bbffbb" | 68 || June 19 || Astros || 5–2 || Elias (4–4) || McCullers (3–2) || Smith (4) || 40,914 || 31–37 |- bgcolor="bbffbb" | 69 || June 20 || Astros || 6–3 || Walker (5–6) || Keuchel (8–3) || Smith (5) || 26,770 || 32–37 |- bgcolor="ffbbbb" | 70 || June 21 || Astros || 2–6 || Harris (4–0) || Happ (3–4) || — || 40,905 || 32–38 |- bgcolor="ffbbbb" | 71 || June 22 || Royals || 1–4 || Blanton (2–0) || Hernández (10–4) || Holland (14) || 23,588 || 32–39 |- bgcolor="bbffbb" | 72 || June 23 || Royals || 7–0 || Montgomery (2–2) || Guthrie (5–5) || — || 17,460 || 33–39 |- bgcolor="ffbbbb" | 73 || June 24 || Royals || 2–8 || Madson (1–1) || Elias (4–5) || — || 23,392 || 33–40 |- bgcolor="bbffbb" | 74 || June 26 || @ Angels || 3–1 || Walker (6–6) || Shoemaker (4–6) || Rodney (15) || 41,137 || 34–40 |- bgcolor="ffbbbb" | 75 || June 27 || @ Angels || 2–4 || Richards (8–5) || Happ (3–5) || Street (21) || 40,514 || 34–41 |- bgcolor="ffbbbb" | 76 || June 28 || @ Angels || 2–3 (10) || Gott (1–0) || Wilhelmsen (1–2) || — || 38,387 || 34–42 |- bgcolor="bbffbb" | 77 || June 30 || @ Padres || 5–0 || Montgomery (3–2) || Kennedy (4–7) || — || 30,368 || 35–42
|- bgcolor="bbffbb" | 78 || July 1 || @ Padres || 7–0 || Walker (7–6) || Shields (7–3) || — || 30,251 || 36–42 |- bgcolor="ffbbbb" | 79 || July 2 || @ Athletics || 0–4 || Kazmir (5–5) || Elias (4–6) || — || 13,062 || 36–43 |- bgcolor="bbffbb" | 80 || July 3 || @ Athletics || 9–5 || Happ (4–5) || Chavez (4–8) || — || 35,067 || 37–43 |- bgcolor="ffbbbb"