The Arizona Diamondbacks' 2015 season was the franchise's 18th season in Major League Baseball and their 18th season at Chase Field.
Offseason
November 4: Signed Walter Ibarra to a minor league contract. November 6: Signed Matt Pagnozzi to a minor league contract. Week of November 13: Signed 3 players to a minor league contract and received Jeremy Hellickson from the Tampa Bay Rays for Andrew Velazquez and Justin Williams. Week of November 20: Signed 8 players to a minor league contract, promoted 5 from the minors, sent 2 to the minors, and sent Charles Brewer and Mike Bolsinger to the Cleveland Indians and the Los Angeles Dodgers, respectively, for cash. December 1: Signed J. C. Ramirez to a minor league contract. December 5: Sent Didi Gregorius to the New York Yankees and received Domingo Leyba and Robbie Ray from the Detroit Tigers in a three-team deal. December 8: Signed Yasmany Tomas and sent Zeke Spruill to the minors. December 9: Received Jeferson Mejia and Zack Godley from the Chicago Cubs for Miguel Montero. December 11: Drafted Oscar Hernández. Week of December 12: Signed 4 players to a minor league contract and conducted the following trades: Sent Eury De La Rosa to the Oakland Athletics for cash. Received Myles Smith, Rubby De La Rosa, Allen Webster, and Raymel Flores to the Boston Red Sox for Zeke Spruill and Wade Miley. December 23: Signed Scott Kalamar to a minor league contract. December 28: Signed Jordan Pacheco to a minor league contract. Month of January 2015: Signed 8 players to a minor league contract. February 2: Signed Gerald Laird to a minor league contract. February 10: Signed 3 players to a minor league contract.
Regular season
Season standings
National League West
National League Wild Card
Record vs. opponents
Season summary
Game log
|- bgcolor="ffbbbb" | 1 || April 6 || Giants || 4–5 || Bumgarner (1–0) || Collmenter (0–1) || Casilla (1) || 49,043 || 0–1 |- bgcolor="ccffcc" | 2 || April 7 || Giants || 7–6 || De La Rosa (1–0) || Vogelsong (0–1) || Reed (1) || 22,626 || 1–1 |- bgcolor="ffbbbb" | 3 || April 8 || Giants || 2–5 || Heston (1–0) || Hellickson (0–1) || Casilla (2) || 21,642 || 1–2 |- bgcolor="ccffcc" | 4 || April 10 || Dodgers || 4–3 (10) || Pérez (1–0) || Howell (0–1) || — || 27,404 || 2–2 |- bgcolor="ccffcc" | 5 || April 11 || Dodgers || 6–0 || Bradley (1–0) || Kershaw (0–1) || — || 37,636 || 3–2 |- bgcolor="ffbbbb" | 6 || April 12 || Dodgers || 4–7 || Greinke (1–0) || Collmenter (0–2) || Peralta (2) || 29,678 || 3–3 |- bgcolor="ccffcc" | 7 || April 13 || @ Padres || 8–4 || De La Rosa (2–0) || Cashner (0–2) || — || 19,538 || 4–3 |- bgcolor="ffbbbb" | 8 || April 14 || @ Padres || 1–5 || Despaigne (1–0) || Hellickson (0–2) || — || 20,102 || 4–4 |- bgcolor="ffbbbb" | 9 || April 15 || @ Padres || 2–3 || Benoit (3–0) || Delgado (0–1) || Kimbrel (3) || 23,104 || 4–5 |- bgcolor="ccffcc" | 10 || April 16 || @ Giants || 7–6 (12) || Delgado (1–1) || Romo (0–1) || — || 41,545 || 5–5 |- bgcolor="ccffcc" | 11 || April 17 || @ Giants || 9–0 || Collmenter (1–2) || Peavy (0–2) || — || 41,550 || 6–5 |- bgcolor="ffbbbb" | 12 || April 18 || @ Giants || 1–4 || Heston (2–1) || De La Rosa (2–1) || Casilla (4) || 41,756 || 6–6 |- bgcolor="ccffcc" | 13 || April 19 || @ Giants || 5–1 || Hellickson (1–2) || Hudson (0–2) || — || 41,528 || 7–6 |- bgcolor="ffbbbb" | 14 || April 21 || Rangers || 1–7 || Tolleson (1–0) || Hudson (0–1) || — || 18,345 || 7–7 |- bgcolor="ccffcc" | 15 || April 22 || Rangers || 8–5 || Bradley (2–0) || Gallardo (2–2) || — || 17,886 || 8–7 |- bgcolor="ffbbbb" | 16 || April 24 || Pirates || 1–4 || Cole (3–0) || Collmenter (1–3) || Melancon (4) || 24,427 || 8–8 |- bgcolor="ffbbbb" | 17 || April 25 || Pirates || 1–2 || Watson (1–1) || Reed (0–1) || Melancon (5) || 38,859 || 8–9 |- bgcolor="ffbbbb" | 18 || April 26 || Pirates || 0–8 || Liriano (1–1) || Hellickson (1–3) || — || 32,353 || 8–10 |- bgcolor="ffbbbb" | 19 || April 27 || Rockies || 4–5 || Matzek (2–0) || Anderson (0–1) || Axford (3) || 17,444 || 8–11 |- bgcolor="ccffcc" | 20 || April 28 || Rockies || 12–5 || Chafin (1–0) || Kendrick (1–3) || — || 18,792 || 9–11 |- bgcolor="ccffcc" | 21 || April 29 || Rockies || 9–1 || Collmenter (2–3) || Lyles (2–2) || — || 19,633 || 10–11
|- bgcolor="ffbbbb" | 22 || May 1 || @ Dodgers || 0–8 || Frías (2–0) || De La Rosa (2–2) || — || 50,164 || 10–12 |- bgcolor="ffbbbb" | 23 || May 2 || @ Dodgers || 4–6 || Nicasio (1–1) || Marshall (0–1) || Hatcher (2) || 43,617 || 10–13 |- bgcolor="ffbbbb" | 24 || May 3 || @ Dodgers || 0–1 (13) || Howell (1–1) || Marshall (0–2) || — || 48,136 || 10–14 |- bgcolor="bbbbbb" style="text-align:center; | — || May 4 || @ Rockies || colspan="6" | Postponed (rain) (Makeup date Sept 1) |- bgcolor="bbbbbb" style="text-align:center; | — || May 5 || @ Rockies || colspan="6" | Postponed (rain) (Rescheduled as a doubleheader on May 6) |- bgcolor="ccffcc" | 25 || May 6 || @ Rockies || 13–7 || Collmenter (3–3) || Matzek (2–1) || — || not given || 11–14 |- bgcolor="ccffcc" | 26 || May 6 || @ Rockies || 5–1 || Ray (1–0) || Lyles (2–3) || — || 22,621 || 12–14 |- bgcolor="ccffcc" | 27 || May 7 || Padres || 11–0 || De La Rosa (3–2) || Despaigne (2–1) || — || 16,929 || 13–14 |- bgcolor="ffbbbb" | 28 || May 8 || Padres || 5–6 || Shields (4–0) || Burgos (0–1) || Kimbrel (9) || 28,677 || 13–15 |- bgcolor="ffbbbb" | 29 || May 9 || Padres || 4–6 (12) || Quackenbush (1–0) || Delgado (1–2) || — || 27,340 || 13–16 |- bgcolor="ccffcc" | 30 || May 10 || Padres || 2–1 || Ramírez (1–0) || Cashner (1–6) || Reed (2) || 24,881 || 14–16 |- bgcolor="ffbbbb" | 31 || May 11 || Nationals || 1–11 || Scherzer (3–3) || Collmenter (3–4) || — || 16,406 || 14–17 |- bgcolor="ccffcc" | 32 || May 12 || Nationals || 14–6 || De La Rosa (4–2) || Strasburg (2–4) || — || 19,053 || 15–17 |- bgcolor="ffbbbb" | 33 || May 13 || Nationals || 6–9 || Barrett (3–0) || Reed (0–2) || Storen (10) || 19,026 || 15–18 |- bgcolor="ffbbbb" | 34 || May 15 || @ Phillies || 3–4 || Araújo (1–0) || Pérez (1–1) || García (1) || 21,383 || 15–19 |- bgcolor="ffbbbb" | 35 || May 16 || @ Phillies || 5–7 || Williams (3–3) || Bradley (2–1) || Papelbon (9) || 33,649 || 15–20 |- bgcolor="ffbbbb" | 36 || May 17 || @ Phillies || 0–6 || O'Sullivan (1–2) || Collmenter (3–5) || — || 22,123 || 15–21 |- bgcolor="ccffcc" | 37 || May 18 || @ Marlins || 3–2 (13) || Reed (1–2) || Cishek (1–4) || Burgos (1) || 17,526 || 16–21 |- bgcolor="ccffcc" | 38 || May 19 || @ Marlins || 4–2 || Hudson (1–1) || Dunn (0–3) || Burgos (2) || 16,034 || 17–21 |- bgcolor="ccffcc" | 39 || May 20 || @ Marlins || 6–1 || Anderson (1–1) || Phelps (2–1) || — || 17,158 || 18–21 |- bgcolor="ccffcc" | 40 || May 21 || @ Marlins || 7–6 || Chafin (2–0) || Dyson (2–1) || Ziegler (1) || 20,692 || 19–21 |- bgcolor="ccffcc" | 41 || May 22 || Cubs || 5–4 (13) || Delgado (2–2) || Rosscup (1–1) || — || 34,498 || 20–21 |- bgcolor="ffbbbb" | 42 || May 23 || Cubs || 6–9 || Motte (2–1) || Burgos (0–2) || Strop (1) || 30,502 || 20–22 |- bgcolor="ccffcc" | 43 || May 24 || Cubs || 4–3 || Hellickson (2–3) || Hammel (3–2) || Ziegler (2) || 39,660 || 21–22 |- bgcolor="ffbbbb" | 44 || May 25 || @ Cardinals || 2–3 || Rosenthal (1–0) || Ramírez (1–1) || — || 42,853 || 21–23 |- bgcolor="ffbbbb" | 45 || May 26 || @ Cardinals || 4–6 || García (1–1) || Bradley (2–2) || Maness (3) || 41,107 || 21–24 |- bgcolor="ffbbbb" | 46 || May 27 || @ Cardinals || 3–4 || Maness (1–0) || Ziegler (0–1) || — || 43,715 || 21–25 |- bgcolor="ccffcc" | 47 || May 29 || @ Brewers || 7–5 || Reed (2–2) || Broxton (1–2) || Ziegler (3) || 34,276 || 22–25 |- bgcolor="ccffcc" | 48 || May 30 || @ Brewers || 7–3 || Hellickson (3–3) || Lohse (3–6) || Delgado (1) || 39,552 || 23–25 |- bgcolor="ffbbbb" | 49 || May 31 || @ Brewers || 7–6 (17) || Garza (3–7) || Nuño (0–1) || — || 32,460 || 23–26
|- bgcolor="ffbbbb" | 50 || June 1 || Braves || 1–8 || Wood (4–2) || Bradley (2–3) || — || 18,258 || 23–27 |- bgcolor="ccffcc" | 51 || June 2 || Braves || 7–6 || Chafin (3–0) || Cunniff (2–1) || Ziegler (4) || 17,101 || 24–27 |- bgcolor="ccffcc" | 52 || June 3 || Braves || 9–8 || Chafin (4–0) || Johnson (1–3) || Ziegler (5) || 17,717 || 25–27 |- bgcolor="ffbbbb" | 53 || June 4 || Mets || 2–6 || Harvey (6–3) || Leone (0–5) || Familia (16) || 18,954 || 25–28 |- bgcolor="ccffcc" | 54 || June 5 || Mets || 7–2 || Hellickson (4–3) || Niese (3–6) || — || 24,332 || 26–28 |- bgcolor="ccffcc" | 55 || June 6 || Mets || 2–1 || Delgado (3–2) || Colón (8–4) || Ziegler (6) || 30,265 || 27–28 |- bgcolor="ffbbbb" | 56 || June 7 || Mets || 3–6 || deGrom (7–4) || Collmenter (3–6) || Familia (17) || 31,575 || 27–29 |- bgcolor="ffbbbb" | 57 || June 8 || @ Dodgers || 3–9 || Bolsinger (4–1) || De La Rosa (4–3) || — || 42,167 || 27–30 |- bgcolor="ffbbbb" | 58 || June 9 || @ Dodgers || 1–3 || Liberatore (2–1) || Ray (1–1) || Jansen (7) || 37,738 || 27–31 |- bgcolor="ffbbbb" | 59 || June 10 || @ Dodgers || 6–7 || Jansen (1–0) || Hudson (1–2) || — || 47,174 || 27–32 |- bgcolor="ccffcc" | 60 || June 12 || @ Giants || 1–0 || Anderson (2–1) || Bumgarner (7–3) || Ziegler (7) || 41,952 || 28–32 |- bgcolor="ccffcc" | 61 || June 13 || @ Giants || 4–2 || Webster (1–0) || Vogelsong (4–5) || Ziegler (8) || 42,006 || 29–32 |- bgcolor="ccffcc" | 62 || June 14 || @ Giants || 4–0 || De La Rosa (5–3) || Heston (6–5) || Hudson (1) || 41,310 || 30–32 |- bgcolor="ccffcc" | 63 || June 15 || @ Angels || 7–3 || Ray (2–1) || Weaver (4–7) || Reed (3) || 35,193 || 31–32 |- bgcolor="ffbbbb" | 64 || June 16 || @ Angels || 1–4 || Richards (7–4) || Hellickson (4–4) || Street (20) || 40,099 || 31–33 |- bgcolor="ccffcc" | 65 || June 17 || Angels || 3–2 || Anderson (3–1) || Santiago (4–4) || Ziegler (9) || 28,481 || 32–33 |- bgcolor="ffbbbb" | 66 || June 18 || Angels || 1–7 || Wilson (5–5) || Webster (1–1) || — || 28,942 || 32–34 |- bgcolor="ccffcc" | 67 || June 19 || Padres || 4–2 || De La Rosa (6–3) || Shields (7–1) || Ziegler (10) || 27,394 ||33–34 |- bgcolor="ffbbbb" | 68 || June 20 || Padres || 1–8 || Ross (4–7) || Ray (2–2) || — || 33,649 || 33–35 |- bgcolor="ccffcc" | 69 || June 21 || Padres || 7–2 || Hellickson (5–4) || Cashner (2–9) || Chafin (1) || 35,590 || 34–35 |- bgcolor="ffbbbb" | 70 || June 23 || @ Rockies || 5–10 || Kendrick (3–9) || Anderson (3–2) || — || 30,079 || 34–36 |- bgcolor="ccffcc" | 71 || June 24 || @ Rockies || 8–7 || Hudson (2–2) || Axford (1–1) || Ziegler (11) || 30,367 || 35–36 |- bgcolor="ffbbbb" | 72 || June 25 || @ Rockies || 4–6 || Miller (1–0) || Hudson (2–3) || Axford (13) || 30,568 || 35–37 |- bgcolor="ffbbbb" | 73 || June 26 || @ Padres || 2–4 || Ross (5–7) || Ray (2–3) || Kimbrel (19) || 30,317 || 35–38 |- bgcolor="ffbbbb" | 74 || June 27 || @ Padres || 2–7 || Cashner (3–9) || Hellickson (5–5) || — || 40,717 || 35–39 |- bgcolor="ccffcc" | 75 || June 28 || @ Padres || 6–4 || Anderson (4–2) || Despaigne (3–6) || Ziegler (12) || 32,223 || 36–39 |- bgcolor="ccffcc" | 76 || June 29 || Dodgers || 10–6 || Burgos (1–2) || Báez (1–1) || — || 24,215 || 37–39 |- bgcolor="ffbbbb" | 77 || June 30 || Dodgers || 4–6 (10) || Peralta (2–1) || Hernandez (0–1) || Jansen (12) || 22,404 || 37–40
|- bgcolor="ffbbbb" | 78 || July 1 || Dodgers || 3–4 || Anderson (5–4) || Ray (2–4) || Jansen (13) || 20,277 || 37–41 |- bgcolor="ccffcc" | 79 || July 2 || Rockies || 8–1 || Hellickson (6–5) || Rusin (3–3) || — || 16,861 || 38–41 |- bgcolor="ccffcc" | 80 || July 3 || Rockies || 4–3 (10) || Chafin (5–0) || Flande (0–1) || — || 22,449 || 39–41 |- bgcolor="ccffcc" | 81 || July 4 || Rockies || 7–3 || Corbin (1–0) || Hale (2–4) || — || 42,113 || 40–41 |- bgcolor="ffbbbb" | 82 || July 5 || Rockies || 4–6 || de la Rosa (6–3) || De La Rosa (6–4) || Axford (14) || 22,996 || 40–42 |- bgcolor="ccffcc" | 83 || July 7 || @ Rangers || 4–2 || Ray (3–4) || Gallardo (7–7) || Ziegler (13) || 30,995 || 41–42 |- bgcolor="ccffcc" | 84 || July 8 || @ Rangers || 7–4 || Delgado (4–2) || Harrison (0–1) || Ziegler (14) || 27,390 || 42–42 |- bgcolor="ffbbbb"