The 2015 Oakland Athletics season was the 48th for the franchise in Oakland, as well as the 115th in club history.
Offseason On November 28, 2014, the Athletics traded Josh Donaldson to the Toronto Blue Jays for Brett Lawrie, Kendall Graveman, Sean Nolin, and Franklin Barreto.
Regular season
American League West
American League Wild Card
Record against opponents
Season summary
Game log
|- style="background:#bfb;" | 1 || April 6 || Rangers || 8–0 || Gray (1–0) || Gallardo (0–1) || — || 36,067 || 1–0 |- style="background:#fbb;" | 2 || April 7 || Rangers || 1–3 || Lewis (1–0) || Hahn (0–1) || Feliz (1) || 15,025 || 1–1 |- style="background:#bfb;" | 3 || April 8 || Rangers || 10–0 || Kazmir (1–0) || Detwiler (0–1) || — || 19,479 || 2–1 |- style="background:#fbb;" | 4 || April 9 || Rangers || 1–10 || Martinez (1–0) || Graveman (0–1) || — || 16,045 || 2–2 |- style="background:#bfb;" | 5 || April 10 || Mariners || 12–0 || Pomeranz (1–0) || Walker (0–1) || — || 30,114 || 3–2 |- style="background:#fbb;" | 6 || April 11 || Mariners || 4–5 (11) || Olson (1–0) || Abad (0–1) || Rodney (2) || 24,355 || 3–3 |- style="background:#fbb;" | 7 || April 12 || Mariners || 7–8 (10) || Rodney (1–0) || Clippard (0–1) || Medina (1) || 32,282 || 3–4 |- style="background:#bfb;" | 8 || April 13 || @ Astros || 8–1 || Kazmir (2–0) || Feldman (0–2) || — || 19,279 || 4–4 |- style="background:#bfb;" | 9 || April 14 || @ Astros || 4–0 || Graveman (1–1) || Peacock (0–1) || — || 18,395 || 5–4 |- style="background:#fbb;" | 10 || April 15 || @ Astros || 1–6 || McHugh (2–0) || Pomeranz (1–1) || – || 19,777 || 5–5 |- style="background:#fbb;" | 11 || April 17 || @ Royals || 4–6 || Davis (2–0) || Otero (0–1) || Holland (4) || 39,228 || 5–6 |- style="background:#bfb;" | 12 || April 18 || @ Royals || 5–0 || Hahn (1–1) || Ventura (2–1) || Chavez (1) || 33,151 || 6–6 |- style="background:#fbb;" | 13 || April 19 || @ Royals || 2–4 || Morales (1–0) || O'Flaherty (0–1) || Davis (2) || 36,755 || 6–7 |- style="background:#bfb;" | 14 || April 20 || @ Angels || 6–3 || Otero (1–1) || Shoemaker (2–1) || Clippard (1) || 35,228 || 7–7 |- style="background:#fbb;" | 15 || April 21 || @ Angels || 1–14 || Santiago (2–1) || Pomeranz (1–2) || — || 32,137 || 7–8 |- style="background:#bfb;" | 16 || April 22 || @ Angels || 9–2 || Gray (2–0) || Salas (0–1) || — || 30,034 || 8–8 |- style="background:#fbb;" | 17 || April 23 || @ Angels || 0–2 || Tropeano (1–0) || Chavez (0–1) || Street (5) || 24,304 || 8–9 |- style="background:#fbb;" | 18 || April 24 || Astros || 4–5 (11) || Gregerson (1–0) || O'Flaherty (0–2) || Qualls (2) || 18,205 || 8–10 |- style="background:#fbb;" | 19 || April 25 || Astros || 3–9 || Feldman (2–2) || Graveman (1–2) || — || 24,342 || 8–11 |- style="background:#fbb;" | 20 || April 26 || Astros || 6–7 || Sipp (2–0) || Clippard (0–2) || Gregerson (4) || 22,080 || 8–12 |- style="background:#bfb;" | 21 || April 28 || Angels || 6–2 || Gray (3–0) || Weaver (0–3) || — || 17,674 || 9–12 |- style="background:#fbb;" | 22 || April 29 || Angels || 3–6 || Morin (1–0) || Cook (0–1) || Street (8) || 16,212 || 9–13 |- style="background:#fbb;" | 23 || April 30 || Angels || 5–6 || Richards (2–1) || Chavez (0–2) || Street (9) || 19,534 || 9–14
|- style="background:#bfb;" | 24 || May 1 || @ Rangers || 7–5 || Otero (2–1) || Mendez (0–1) || Clippard (2) || 29,700 || 10–14 |- style="background:#fbb;" | 25 || May 2 || @ Rangers || 7–8 (10) || Kela (1–1) || Cook (0–2) || — || 32,207 || 10–15 |- style="background:#bfb;" | 26 || May 3 || @ Rangers || 7–1 || Gray (4–0) || Gallardo (2–4) || — || 36,006 || 11–15 |- style="background:#fbb;" | 27 || May 4 || @ Twins || 7–8 || Hughes (1–4) || Hahn (1–2) || Perkins (9) || 20,605 || 11–16 |- style="background:#bfb;" | 28 || May 5 || @ Twins || 2–1 || Chavez (1–2) || May (2–2) || Clippard (3) || 18,135 || 12–16 |- style="background:#fbb;" | 29 || May 6 || @ Twins || 0–13 || Gibson (3–2) || Kazmir (2–1) || — || 18,866 || 12–17 |- style="background:#fbb;" | 30 || May 7 || @ Twins || 5–6 || Nolasco (2–1) || Pomeranz (1–3) || Perkins (10) || 22,379 || 12–18 |- style="background:#fbb;" | 31 || May 8 || @ Mariners || 3–4 (11) || Smith (1–2) || Otero (2–2) || — || 25,187 || 12–19 |- style="background:#fbb;" | 32 || May 9 || @ Mariners || 2–7 || Happ (3–1) || Hahn (1–3) || — || 37,441 || 12–20 |- style="background:#fbb;" | 33 || May 10 || @ Mariners || 3–4 || Hernández (6–0) || Chavez (1–3) || Rodney (9) || 42,831 || 12–21 |- style="background:#fbb;" | 34 || May 11 || Red Sox || 4–5 (11) || Barnes (1–0) || Castro (0–1) || — || 19,743 || 12–22 |- style="background:#bfb;" | 35 || May 12 || Red Sox || 9–2 || Pomeranz (2–3) || Masterson (2–2) || — || 24,605 || 13–22 |- style="background:#fbb;" | 36 || May 13 || Red Sox || 0–2 || Miley (2–4) || Gray (4–1) || Uehara (7) || 22,389 || 13–23 |- style="background:#fbb;" | 37 || May 15 || White Sox || 6–7 || Carroll (1–1) || Abad (0–2) || Duke (1) || 21,464 || 13–24 |- style="background:#fbb;" | 38 || May 16 || White Sox || 3–4 || Danks (2–3) || Rodriguez (0–1) || Robertson (8) || 28,445 || 13–25 |- style="background:#fbb;" | 39 || May 17 || White Sox || 3–7 || Samardzija (3–2) || Kazmir (2–2) || — || 33,195 || 13–26 |- style="background:#bfb;" | 40 || May 18 || @ Astros || 2–1 || Mujica (2–1) || Thatcher (0–1) || Clippard (4) || 21,724 || 14–26 |- style="background:#fbb;" | 41 || May 19 || @ Astros || 4–6 || Hernández (2–3) || Gray (4–2) || Neshek (1) || 17,575 || 14–27 |- style="background:#fbb;" | 42 || May 20 || @ Astros || 1–6 || Keuchel (6–0) || Hahn (1–4) || — || 21,066 || 14–28 |- style="background:#fbb;" | 43 || May 21 || @ Rays || 0–3 || Colomé (3–1) || Chavez (1–4) || Boxberger (12) || 10,605 || 14–29 |- style="background:#fbb;" | 44 || May 22 || @ Rays || 2–5 || Archer (5–4) || Kazmir (2–3) || Boxberger (13) || 12,329 || 14–30 |- style="background:#bfb;" | 45 || May 23 || @ Rays || 5–0 || Graveman (2–2) || Karns (3–2) || — || 15,207 || 15–30 |- style="background:#bfb;" | 46 || May 24 || @ Rays || 7–2 || Gray (5–2) || Ramírez (2–2) || — || 15,692 || 16–30 |- style="background:#bfb;" | 47 || May 25 || Tigers || 4–0 || Hahn (2–4) || Greene (4–3) || — || 25,380 || 17–30 |- style="background:#fbb;" | 48 || May 26 || Tigers || 0–1 || Price (4–1) || Chavez (1–5) || Soria (14) || 22,758 || 17–31 |- style="background:#fbb;" | 49 || May 27 || Tigers || 2–3 || Ryan (1–0) || Otero (2–3) || Soria (15) || 20,387 || 17–32 |- style="background:#bfb;" | 50 || May 28 || Yankees || 5–4 || Scribner (1–0) || Sabathia (2–7) || Clippard (5) || 21,795 || 18–32 |- style="background:#bfb;" | 51 || May 29 || Yankees || 6–2 || Gray (6–2) || Capuano (0–3) || Clippard (6) || 23,540 || 19–32 |- style="background:#fbb;" | 52 || May 30 || Yankees || 3–5 || Shreve (2–1) || Hahn (2–5) || Miller (15) || 25,223 || 19–33 |- style="background:#bfb;" | 53 || May 31 || Yankees || 3–0 || Chavez (2–5) || Warren (3–4) || Clippard (7) || 25,457 || 20–33
|- style="background:#bfb;" | 54 || June 2 || @ Tigers || 5–3 || Graveman (3–2) || Simón (5–3) || Clippard (8) || 28,362 || 21–33 |- style="background:#bfb;" | 55 || June 3 || @ Tigers || 6–1 || Gray (7–2) || Sánchez (3–7) || — || 30,718 || 22–33 |- style="background:#bfb;" | 56 || June 4 || @ Tigers || 7–5 || Hahn (3–5) || Greene (4–5) || Clippard (9) || 37,411 || 23–33 |- style="background:#fbb;" | 57 || June 5 || @ Red Sox || 2–4 || Miley (5–5) || Kazmir (2–4) || Uehara (12) || 34,910 || 23–34 |- style="background:#fbb;" | 58 || June 6 || @ Red Sox || 2–4 || Kelly (2–4) || Chavez (2–6) || Uehara (13) || 36,713 || 23–35 |- style="background:#fbb;" | 59 || June 7 || @ Red Sox || 4–7 || Wright (3–2) || Clippard (0–3) || Layne (1) || 36,913 || 23–36 |- style="background:#fbb;" | 60 || June 9 || Rangers || 1–2 || Martinez (5–2) || Gray (7–3) || Tolleson (8) || 14,617 || 23–37 |- style="background:#bfb;" | 61 || June 10 || Rangers || 5–4 || Clippard (1–3) || Kela (4–3) || — || 14,290 || 24–37 |- style="background:#bfb;" | 62 || June 11 || Rangers || 7–0 || Kazmir (3–4) || Gonzalez (2–1) || — || 14,489 || 25–37 |- style="background:#fbb;" | 63 || June 12 || @ Angels || 4–5 || Alvarez (1–1) || Scribner (1–1) || Street (18) || 42,113 || 25–38 |- style="background:#fbb;" | 64 || June 13 || @ Angels || 0–1 || Wilson (4–5) || Graveman (3–3) || Street (19) || 43,540 || 25–39 |- style="background:#bfb;" | 65 || June 14 || @ Angels || 8–1 || Gray (8–3) || Shoemaker (4–5) || — || 35,143 || 26–39 |- style="background:#bfb;" | 66 || June 15 || @ Padres || 9–1 || Hahn (4–5) || Ross (3–7) || — || 30,018 || 27–39 |- style="background:#bfb;" | 67 || June 16 || @ Padres || 6–5 || Scribner (2–1) || Kimbrel (1–2) || Clippard (10) || 28,482 || 28–39 |- style="background:#bfb;" | 68 || June 17 || Padres || 16–2 || Chavez (3–6) || Despaigne (3–5) || — || 20,625 || 29–39 |- style="background:#fbb;" | 69 || June 18 || Padres || 1–3 || Kennedy (4–5) || Graveman (3–4) || Kimbrel (17) || 16,643 || 29–40 |- style="background:#fbb;" | 70 || June 19 || Angels || 7–12 || Salas (1–1) || Mujica (2–2) || — || 25,528 || 29–41 |- style="background:#bfb;" | 71 || June 20 || Angels || 4–1 || Hahn (5–5) || Weaver (4–8) || Clippard (11) || 26,471 || 30–41 |- style="background:#bfb;" | 72 || June 21 || Angels || 3–2 || Kazmir (4–4) || Richards (7–5) || Clippard (12) || 29,137 || 31–41 |- style="background:#bfb;" | 73 || June 23 || @ Rangers || 8–6 || Chavez (4–6) || Gonzalez (2–2) || Pomeranz (1) || 35,889 || 32–41 |- style="background:#bfb;" | 74 || June 24 || @ Rangers || 8–2 || Graveman (4–4) || Rodríguez (4–3) || — || 34,216 || 33–41 |- style="background:#bfb;" | 75 || June 25 || @ Rangers || 6–3 || Gray (9–3) || Kela (4–5) || Clippard (13) || 29,251 || 34–41 |- style="background:#fbb;" | 76 || June 26 || Royals || 2–5 || Vólquez (8–4) || Hahn (5–6) || Holland (15) || 27,365 || 34–42 |- style="background:#fbb;" | 77 || June 27 || Royals || 2–3 || Young (7–3) || Kazmir (4–5) || Holland (16) || 28,619 ||34–43 |- style="background:#fbb;" | 78 || June 28 || Royals || 3–5 || Guthrie (6–5) || Chavez (4–7) || Davis (9) || 22,477 || 34–44 |- style="background:#bfb;" | 79 || June 29 || Rockies || 7–1 || Graveman (5–4) || Hale (2–3) || — || 12,125 || 35–44 |- style="background:#fbb;" | 80 || June 30 || Rockies || 1–2 || de la Rosa (5–3) || Bassitt (0–1) || Hawkins (2) || 19,206 || 35–45
|- style="background:#bfb;" | 81 || July 1 || Rockies || 4–1 || Hahn (6–6) || Bettis (4–3) || Clippard (14) || 17,655 || 36–45 |- style="background:#bfb;" | 82 || July 2 || Mariners || 4–0 || Kazmir (5–5) || Elias (4–6) || — || 13,062 || 37–45 |- style="background:#fbb;" | 83 || July 3 || Mariners || 5–9 || Happ (4–5) || Chavez (4–8) || — || 35,067 || 37–46 |- style="background:#bfb;" | 84 || July 4 || Mariners || 2–0 || Graveman (6–4) || Hernández (10–5) || Clippard (15) || 18,915 || 38–46 |- style="background:#fbb;" | 85 || July 5 || Mariners || 1–2 || Montgomery (4–2) || Bassitt (0–2) || Rodney (16) || 22,163 || 38–47 |- style="background:#bfb;" | 86 || July 7 || @ Yankees || 4–3 || Pomeranz (3–3) || Betances (5–2) || Clippard (16) || 32,337 || 39–47 |- style="background:#fbb;" | 87 || July 8 || @ Yankees || 4–5 || Sabathia (4–8) || Scribner (2–2) || Miller (18) || 41,626 || 39–48 |- style="background:#fbb;" | 88 || July 9 || @ Yankees || 2–6 || Tanaka (5–3) || Chavez (4–9) || — || 40,084 || 39–49 |- style="background:#fbb;" | 89 || July 10 || @ Indians || 1–5 || Salazar (8–4) || Graveman (6–5) || Allen (19) || 28,539 || 39–50 |- style="background:#bfb;" | 90 || July 11 || @ Indians || 5–4 || O'Flaherty (1–2) || McAllister (2–3) || Clippard (17) || 28,733 || 40–50 |- style="background:#bfb;" | 91 || July 12 || @ Indians || 2–0 || Gray (10–3) || Kluber (4–10) || — || 20,611 || 41–50 |- style="background:#bbb;" | – || July 14 || 86th All-Star Game || colspan=6 | National League vs. American League (Great American Ball Park, Cincinnati) |- style="background:#fbb;"