The 2013 Seattle Mariners season was the 37th season in franchise history. The Mariners played their 14th full season (15th overall) at Safeco Field. They finished with a record of 71–91 and fourth place in the American League West.

Standings

American League West

American League Wild Card

Record against opponents

Game log Legend Mariners win Mariners loss PostponementBoldMariners team member

|- style="text-align:center; background:#bfb;" | 1 || April 1 || @ Athletics || 2–0 || Hernández (1–0) || Anderson (0–1) || Wilhelmsen (1) || 36,067 || 1–0 || |- style="text-align:center; background:#bfb;" | 2 || April 2 || @ Athletics || 7–1 || Iwakuma (1–0) || Parker (0–1) || — || 15,315 || 2–0 || |- style="text-align:center; background:#fbb;" | 3 || April 3 || @ Athletics || 2–6 || Milone (1–0) || Saunders (0–1) || — || 15,162 || 2–1 || |- style="text-align:center; background:#fbb;" | 4 || April 4 || @ Athletics || 2–8 || Griffin (1–0) || Maurer (0–1) || — || 12,134 || 2–2 || |- style="text-align:center; background:#bfb" | 5 || April 5 || @ White Sox || 8–7 (10) || Loe (1–0) || Jones (0–1) || Wilhelmsen (2) || 15,312 || 3–2 || |- style="text-align:center; background:#fbb" | 6 || April 6 || @ White Sox || 3–4 || Veal (1–0) || Hernández (1–1) || Reed (3) || 22,461 || 3–3 || |- style="text-align:center; background:#fbb" | 7 || April 7 || @ White Sox || 3–4 (10) || Reed (1–0) || Loe (1–1) || — || 18,708 || 3–4 || |- style="text-align:center; background:#bfb" | 8 || April 8 || Astros || 3–0 || Saunders (1–1) || Humber (0–2) || Wilhelmsen (3) || 42,589 || 4–4 || |- style="text-align:center; background:#fbb" | 9 || April 9 || Astros || 9–16 || Clemens (1–0) || Maurer (0–2) || — || 10,745 || 4–5 || |- style="text-align:center; background:#fbb" | 10 || April 10 || Astros || 3–8 || Peacock (1–1) || Beavan (0–1) || — || 10,493 || 4–6 || |- style="text-align:center; background:#fbb" | 11 || April 11 || Rangers || 3–4 || Ortiz (1–0) || Hernández (1–2) || Nathan (3) || 22,917 || 4–7 || |- style="text-align:center; background:#bfb" | 12 || April 12 || Rangers || 3–1 || Iwakuma (2–0) || Darvish (2–1) || Wilhelmsen (4) || 15,029 || 5–7 || |- style="text-align:center; background:#fbb" | 13 || April 13 || Rangers || 1–3 || Ortiz (2–0) || Capps (0–1) || Nathan (4) || 23,461 || 5–8 || |- style="text-align:center; background:#bfb" | 14 || April 14 || Rangers || 4–3 || Maurer (1–2) || Tepesch (1–1) || Wilhelmsen (5) || 16,981 || 6–8 || |- style="text-align:center; background:#fbb" | 15 || April 16 || Tigers || 2–6 || Fister (3–0) || Harang (0–1) || — || 12,379 || 6–9 || |- style="text-align:center; background:#fbb" | 16 || April 17 || Tigers || 1–2 (14) || Smyly (1–0) || Furbush (0–1) || Benoit (1) || 14,981 || 6–10 || |- style="text-align:center; background:#bfb" | 17 || April 18 || Tigers || 2–0 || Capps (1–1) || Verlander (2–2) || Wilhelmsen (6) || 15,742 || 7–10 || |- style="text-align:center; background:#fbb" | 18 || April 19 || @ Rangers || 0–7 || Darvish (3–1) || Saunders (1–2) || — || 36,273 || 7–11 || |- style="text-align:center; background:#fbb" | 19 || April 20 || @ Rangers || 0–5 || Lowe (1–0) || Maurer (1–3) || — || 43,025 || 7–12 || |- style="text-align:center; background:#fbb" | 20 || April 21 || @ Rangers || 3–11 || Grimm (1–0) || Harang (0–2) || Kirkman (1) || 44,599 || 7–13 || |- style="text-align:center; background:#bfb" | 21 || April 22 || @ Astros || 7–1 || Hernández (2–2) || Peacock (1–2) || — || 23,201 || 8–13 || |- style="text-align:center; background:#fbb" | 22 || April 23 || @ Astros || 2–3 || Norris (3–2) || Iwakuma (2–1) || Veras (2) || 13,929 || 8–14 || |- style="text-align:center; background:#fbb" | 23 || April 24 || @ Astros || 3–10 || Harrell (2–2) || Saunders (1–3) || — || 11,686 || 8–15 || |- style="text-align:center; background:#bfb" | 24 || April 25 || Angels || 6–0 || Maurer (2–3) || Richards (1–1) || — || 13,000 || 9–15 || |- style="text-align:center; background:#fbb" | 25 || April 26 || Angels || 3–6 || Wilson (2–0) || Harang (0–3) || Frieri (3) || 31,543 || 9–16 || |- style="text-align:center; background:#bfb" | 26 || April 27 || Angels || 3–2 || Hernández (3–2) || Blanton (0–4) || Wilhelmsen (7) || 31,901 || 10–16 || |- style="text-align:center; background:#bfb" | 27 || April 28 || Angels || 2–1 || Capps (2–1) || Vargas (0–3) || Wilhelmsen (8) || 20,638 || 11–16 || |- style="text-align:center; background:#bfb" | 28 || April 29 || Orioles || 6–2 || Saunders (2–3) || Britton (0–1) || — || 9,818 || 12–16 || |- style="text-align:center; background:#fbb" | 29 || April 30 || Orioles || 2–7 || Hammel (4–1) || Maurer (2–4) || — || 13,629 || 12–17 ||

|- style="text-align:center; background:#bfb" | 30 || May 1 || Orioles || 8–3 || Harang (1–3) || Chen (2–3) || — || 12,936 || 13–17 || |- style="text-align:center; background:#bfb" | 31 || May 3 || @ Blue Jays || 4–0 || Hernández (4–2) || Romero (0–1) || — || 23,779 || 14–17 || |- style="text-align:center; background:#bfb" | 32 || May 4 || @ Blue Jays || 8–1 || Iwakuma (3–1) || Dickey (2–5) || — || 35,754 || 15–17 || |- style="text-align:center; background:#fbb" | 33 || May 5 || @ Blue Jays || 2–10 || Morrow (1–2) || Saunders (2–4) || — || 22,937 || 15–18 || |- style="text-align:center; background:#fbb" | 34 || May 7 || @ Pirates || 1–4 || Gómez (2–0) || Harang (1–4) || Grilli (13) || 12,973 || 15–19 || |- style="text-align:center; background:#bfb" | 35 || May 8 || @ Pirates || 2–1 || Hernández (5–2) || Burnett (3–3) || Wilhelmsen (9) || 18,877 || 16–19 || |- style="text-align:center; background:#bfb" | 36 || May 10 || Athletics || 6–3 || Iwakuma (4–1) || Straily (1–1) || Wilhelmsen (10) || 25,509 || 17–19 || |- style="text-align:center; background:#fbb" | 37 || May 11 || Athletics || 3–4 || Parker (2–5) || Maurer (2–5) || Balfour (6) || 30,089 || 17–20 || |- style="text-align:center; background:#bfb" | 38 || May 12 || Athletics || 6–1 || Saunders (3–4) || Milone (3–5) || — || 27,599 || 18–20 || |- style="text-align:center; background:#fbb" | 39 || May 14 || @ Yankees || 3–4 || Kelley (2–0) || Furbush (0–2) || Rivera (16) || 41,267 || 18–21 || |- style="text-align:center; background:#bfb" | 40 || May 15 || @ Yankees || 12–2 || Iwakuma (5–1) || Hughes (0–2) || — || 41,267 || 19–21 || |- style="text-align:center; background:#bfb" | 41 || May 16 || @ Yankees || 3–2 || Pérez (1–0) || Pettitte (4–3) || Wilhelmsen (11) || 35,392 || 20–21 || |- style="text-align:center; background:#fbb" | 42 || May 17 || @ Indians || 3–6 (10) || Pestano (1–0) || Leutge (0–1) || — || 34,282 || 20–22 || |- style="text-align:center; background:#fbb" | 43 || May 18 || @ Indians || 4–5 || Perez (2–0) || Pérez (1–1) || — || 17,574 || 20–23 || |- style="text-align:center; background:#fbb" | 44 || May 19 || @ Indians || 0–6 || Masterson (7–2) || Hernández (5–3) || — || 19,744 || 20–24 || |- style="text-align:center; background:#fbb" | 45 || May 20 || @ Indians || 8–10 (10) || Smith (2–0) || Furbush (0–3) || — || 19,390 || 20–25 || |- style="text-align:center; background:#fbb" | 46 || May 21 || @ Angels || 0–12 || Williams (3–1) || Harang (1–5) || — || 34,095 || 20–26 || |- style="text-align:center; background:#fbb" | 47 || May 22 || @ Angels || 1–7 || Wilson (4–3) || Maurer (2–6) || — || 33,313 || 20–27 || |- style="text-align:center; background:#fbb" | 48 || May 24 || Rangers || 5–9 || Grimm (4–3) || Saunders (3–5) || Nathan (15) || 22,053 || 20–28 || |- style="text-align:center; background:#fbb" | 49 || May 25 || Rangers || 2–5 || Holland (4–2) || Hernández (5–4) || Nathan (16) || 35,022 || 20–29 || |- style="text-align:center; background:#bfb" | 50 || May 26 || Rangers || 4–3 (13) || Medina (1–0) || Kirkman (0–1) || — || 23,154 || 21–29 || |- style="text-align:center; background:#bfb" | 51 || May 27 || Padres || 9–0 || Harang (2–5) || Richard (0–5) || — || 18,942 || 22–29 || |- style="text-align:center; background:#fbb" | 52 || May 28 || Padres || 1–6 || Vólquez (4–5) || Maurer (2–7) || — || 11,911 || 22–30 || |- style="text-align:center; background:#fbb" | 53 || May 29 || @ Padres || 2–3 (10) || Gregerson (3–2) || Medina (1–1) || — || 19,882 || 22–31 || |- style="text-align:center; background:#bfb" | 54 || May 30 || @ Padres || 7–1 || Hernández (6–2) || Cashner (4–3) || — || 18,809 || 23–31 || |- style="text-align:center; background:#bfb" | 55 || May 31 || @ Twins || 3–0 || Iwakuma (6-1) || Pelfrey (3-6) || Wilhelmsen (12) || 31,430 || 24-31 ||

|- style="text-align:center; background:#fbb" | 56 || June 1 || @ Twins || 4–5 || Thielbar (1–0) || Wilhelmsen (0–1) || — || 33,417 || 24–32 || |- style="text-align:center; background:#fbb" | 57 || June 2 || @ Twins || 0–10 || Diamond (4–4) || Bonderman (0–1) || — || 34,876 || 24–33 || |- style="text-align:center; background:#bfb" | 58 || June 3 || White Sox || 4–2 || Saunders (4–5) || Danks (0–2) || Wilhelmsen (13) || 13,491 || 25–33 || |- style="text-align:center; background:#bfb" | 59 || June 4 || White Sox || 7–4 || Hernández (7–4) || Peavy (6–4) || Wilhelmsen (14) || 16,294 || 26–33 || |- style="text-align:center; background:#fbb" | 60 || June 5 || White Sox || 5–7 (16) || Reed (2–0) || Noesí (0–1) || — || 20,139 || 26–34 || |- style="text-align:center; background:#fbb" | 61 || June 6 || Yankees || 1–6 || Hughes (3–4) || Harang (2–6) || — || 18,776 || 26–35 || |- style="text-align:center; background:#bfb" | 62 || June 7 || Yankees || 4–1 || Bonderman (1–1) || Kuroda (6–5) || Wilhelmsen (15) || 26,248 || 27–35 || |- style="text-align:center; background:#fbb" | 63 || June 8 || Yankees || 1-3 || Pettitte (5-3) || Saunders (4-6) || Rivera (22) || 38,252 || 27-36 || |- style="text-align:center; background:#fbb" | 64 || June 9 || Yankees || 1-2 || Robertson (4-1) || Medina (1-2) || Rivera (23) || 43,389 || 27-37 || |- style="text-align:center; background:#bfb" | 65 || June 10 || Astros || 3-2 || Iwakuma (7-1) || Keuchel (3-3) || Wilhelmsen (16) || 12,811 || 28-37 || |- style="text-align:center; background:#bfb" | 66 || June 11 || Astros || 4-0 || Harang (3-6) || Norris (5-6) || – || 10,266 || 28-38 || |- style="text-align:center; background:#fbb" | 67 || June 12 || Astros || 1-6 || Clemens (4-2) || Wilhelmsen (0-2) || – || 13,823 || 29-38 || |- style="text-align:center; background:#bfb" | 68 || June 14 || @ Athletics || 3-2 || Saunders (5-6) || Milone (6-6) || Pérez (1) || 31,448 || 30-38 || |- style="text-align:center; background:#bfb" | 69 || June 15 || @ Athletics || 4-0 || Hernández (8-4) || Griffin (5-6) || – || 24,378 || 31-38 || |- style="text-align:center; background:#fbb" | 70 || June 16 || @ Athletics || 2-10 || Colón (9-2) || Iwakuma (7-2) || – || 36,067 || 31-39 || |- style="text-align:center; background:#fbb" | 71 || June 17 || @ Angels || 3-11 || Vargas (6-4) || Harang (3-7) || – || 30,258 || 31-40 || |- style="text-align:center; background:#bfb" | 72 || June 18 || @ Angels || 3-2 (10) || Furbush (1-3) || Richards (2-4) || Medina (1) || 33,040 || 32-40 || |- style="text-align:center; background:#fbb" | 73 || June 19 || @ Angels || 0-1 || Wilson (6-5) || Saunders (5-7) || Frieri (16) || 35,401 || 32-41 || |- style="text-align:center; background:#fbb" | 74 || June 20 || @ Angels || 9-10 || Downs (1-2) || Capps (2-2) || Frieri (17) || 37,711 || 32-42 || |- style="text-align:center; background:#fbb" | 75 || June 21 || Athletics || 3-6 || Colón (10-2) || Iwakuma (7-3) || Balfour (18) || 23,086 || 32-43 || |- style="text-align:center; background:#bfb" | 76 || June 22 || Athletics || 7-5 || Medina (2-2) || Cook (1-1) || – || 20,704 || 33-43 || |- style="text-align:center; background:#bfb" | 77 || June 23 || Athletics || 6-3 (10) || Pérez (2-1) || Balfour (0-1) || – || 22,813 || 34-43 || |- style="text-align:center; background:#fbb" | 78 || June 25 || Pirates || 4-9 || Locke (7-1) || Saunders (5-8) || – || 21,074 || 34-44 || |- style="text-align:center; background:#fbb" | 79 || June 26 || Pirates || 2-4 || Mazzaro (4-2) || Furbush (1-4) || Melancon (2) || 21,265 || 34-45 ||