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| Season Summary | 80-82, Final Rank:6, GB: 17.0 | |
| Days in First | never | |
| Biggest Lead | never led | |
| Farthest Behind | 21.5 | last on Sunday, Sep 1, for days on which they played |
| Most Games over .500 | 3 | last on Friday, Jul 5 |
| Most Games under .500 | 9 | last on Wednesday, Jun 12 |
| Longest Winning Streak | 9 | Thursday, Jun 13 to Thursday, Jun 20 |
| Longest Losing Streak | 10 | Saturday, Jul 6 to Monday, Jul 15 |
| Most Runs Allowed | 16 | Saturday, Aug 10 |
| Most Runs Scored | 19 | Wednesday, Aug 21 |
| Longest Game (innings) | 17 | Tuesday, May 21 |
| Times Shutout by Opponent | 22 | |
| Times Opponent Shutout | 19 | |
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| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Wednesday, Apr 10 | boxscore | PIT | @ | HOU | L | 4 | 5 | 0-1 | 6 | 1.0 | Dierker | Pizarro | 2:30 | 21,320 | - | ||
| 2 | 2 | Thursday, Apr 11 | boxscore | PIT | @ | SFG | W | 3 | 1 | 15 | 1-1 | 3 | 1.0 | Face | Linzy | Moose | 3:34 | 7,844 | + |
| 3 | 3 | Saturday, Apr 13 | boxscore | PIT | @ | SFG | W | 2 | 1 | 2-1 | 3 | 1.5 | McBean | Perry | 2:24 | 11,488 | ++ | ||
| 4 | 4 | Sunday, Apr 14 | boxscore | PIT | @ | LAD | W | 3 | 0 | 3-1 | 2 | 0.5 | Bunning | Osteen | 2:19 | 27,136 | +++ | ||
| 5 | 5 | Monday, Apr 15 | boxscore | PIT | @ | LAD | L | 2 | 3 | 3-2 | 3 | 1.5 | Singer | Veale | 2:09 | 16,214 | - | ||
| 6 | 6 | Wednesday, Apr 17 | boxscore | PIT | HOU | W | 13 | 4 | 4-2 | 3 | 0.5 | McBean | Lemaster | 3:09 | 30,779 | + | |||
| 7 | 7 | Friday, Apr 19 | boxscore | PIT | SFG | L | 2 | 5 | 4-3 | 4 | 1.0 | Marichal | Bunning | 2:22 | 24,224 | - | |||
| 8 | 8 | Saturday, Apr 20 | boxscore | PIT | SFG | L | 0 | 1 | 4-4 | 5 | 1.5 | Sadecki | Veale | 2:39 | 8,156 | -- | |||
| 9 | 9 | Sunday, Apr 21 | boxscore | PIT | SFG | W | 10 | 0 | 5-4 | 3 | 1.0 | McBean | McCormick | 2:43 | 17,337 | + | |||
| 10 | 10 | Monday, Apr 22 | boxscore | PIT | LAD | L | 3 | 5 | 5-5 | 5 | 1.5 | Brewer | Moose | Billingham | 2:38 | 7,963 | - | ||
| 11 | 11 | Wednesday, Apr 24 | boxscore | PIT | LAD | W | 4 | 3 | 6-5 | 3 | 2.0 | Bunning | Osteen | Face | 2:41 | 4,938 | + | ||
| 12 | 12 | Friday, Apr 26 | boxscore | PIT | @ | STL | L | 1 | 2 | 6-6 | 4 | 3.0 | Gibson | Veale | 2:04 | 39,866 | - | ||
| 13 | 13 | Saturday, Apr 27 | boxscore | PIT | @ | STL | L | 5 | 7 | 6-7 | 5 | 4.0 | Briles | McBean | Hoerner | 2:37 | 20,863 | -- | |
| 14 | 14 | Sunday, Apr 28 | boxscore | PIT | @ | STL | L | 2 | 4 | 6-8 | 7 | 5.0 | Carlton | Sisk | 2:15 | 20,562 | --- | ||
| 15 | 15 | Monday, Apr 29 | boxscore | PIT | CHC | W | 7 | 4 | 7-8 | 6 | 4.0 | Blass | Jenkins | Moose | 2:48 | 5,603 | + | ||
| 16 | 16 | Tuesday, Apr 30 | boxscore | PIT | CHC | W | 4 | 3 | 8-8 | 3 | 4.0 | Pizarro | Hartenstein | 2:47 | 3,710 | ++ | |||
| 17 | 17 | Wednesday, May 1 | boxscore | PIT | CHC | W | 4 | 0 | 9-8 | 3 | 4.0 | McBean | Nye | 2:27 | 5,449 | +++ | |||
| 18 | 18 | Thursday, May 2 | boxscore | PIT | CHC | L | 0 | 1 | 9-9 | 4 | 4.0 | Niekro | Bunning | 2:26 | 7,249 | - | |||
| 19 | 19 | Friday, May 3 | boxscore | PIT | @ | PHI | L | 2 | 3 | 9-10 | 6 | 4.0 | Farrell | Kline | 3:20 | 9,433 | -- | ||
| 20 | 20 | Saturday, May 4 | boxscore | PIT | @ | PHI | L | 2 | 3 | 9-11 | 7 | 5.0 | Hall | Face | 2:31 | 15,834 | --- | ||
| 21 | 21 | Sunday, May 5 | boxscore | PIT | @ | PHI | W | 5 | 2 | 10-11 | 5 | 4.0 | Wickersham | Jackson | Moose | 2:50 | 9,407 | + | |
| 22 | 22 | Monday, May 6 | boxscore | PIT | @ | ATL | W | 2 | 1 | 11-11 | 4 | 4.0 | Bunning | Jarvis | Kline | 2:33 | 9,131 | ++ | |
| 23 | 23 | Tuesday, May 7 | boxscore | PIT | @ | ATL | L | 1 | 2 | 11-12 | 6 | 4.0 | Upshaw | McBean | 2:23 | 6,610 | - | ||
| 24 | 24 | Wednesday, May 8 | boxscore | PIT | @ | ATL | W | 4 | 3 | 14 | 12-12 | 5 | 4.0 | Kline | Upshaw | Face | 3:32 | 7,035 | + |
| 25 | 25 | Thursday, May 9 | boxscore | PIT | @ | ATL | L | 2 | 4 | 12-13 | 6 | 4.5 | Reed | Moose | Britton | 2:31 | 5,704 | - | |
| 26 | 26 | Friday, May 10 | boxscore | PIT | PHI | W | 2 | 1 | 13-13 | 4 | 4.0 | Veale | Fryman | Face | 2:28 | 9,397 | + | ||
| 27 | 27 | Sunday, May 12 | boxscore | PIT | PHI | W | 2 | 1 | 14-13 | 2 | 3.5 | McBean | James | 1:55 | 12,203 | ++ | |||
| 28 | 28 | Monday, May 13 | boxscore | PIT | STL | L | 0 | 1 | 14-14 | 4 | 4.5 | Briles | Bunning | 2:23 | 10,082 | - | |||
| 29 | 29 | Wednesday, May 15 | boxscore | PIT | STL | L | 0 | 1 | 14-15 | 4 | 5.5 | Carlton | Blass | 2:08 | 9,461 | -- | |||
| 30 | 30 | Thursday, May 16 | boxscore | PIT | STL | W | 3 | 0 | 15-15 | 4 | 4.5 | Veale | Washburn | 2:16 | 9,595 | + | |||
| 31 | 31 | Friday, May 17 | boxscore | PIT | CIN | L | 2 | 3 | 15-16 | 4 | 4.5 | Maloney | McBean | Abernathy | 2:35 | 13,499 | - | ||
| 32 | 32 | Saturday, May 18 | boxscore | PIT | CIN | L | 3 | 8 | 15-17 | 8 | 4.5 | McCool | Bunning | 2:51 | 3,670 | -- | |||
| 33 | 33 | Sunday, May 19 | boxscore | PIT | CIN | L | 3 | 9 | 15-18 | 7 | 4.5 | Culver | Blass | Kelso | 2:26 | 9,458 | --- | ||
| 34 | 34 | Monday, May 20 | boxscore | PIT | @ | NYM | L | 1 | 2 | 15-19 | 7 | 5.5 | Koosman | Veale | 2:41 | 12,221 | ---- | ||
| 35 | 35 | Tuesday, May 21 | boxscore | PIT | @ | NYM | L | 3 | 4 | 17 | 15-20 | 9 | 5.5 | Taylor | Moose | 4:25 | 8,188 | ----- | |
| 36 | 36 | Wednesday, May 22 | boxscore | PIT | @ | CHC | W | 13 | 6 | 16-20 | 8 | 4.5 | Sisk | Niekro | Wickersham | 3:04 | 5,075 | + | |
| 37 | 37 | Friday, May 24 | boxscore | PIT | @ | CIN | W | 8 | 5 | 17-20 | 8 | 5.0 | Kline | Culver | 2:26 | 9,379 | ++ | ||
| 38 | 38 | Saturday, May 25 | boxscore | PIT | @ | CIN | W | 5 | 4 | 12 | 18-20 | 7 | 4.0 | Sisk | McCool | 3:55 | 12,153 | +++ | |
| 39 | 39 | Sunday, May 26 | boxscore | PIT | @ | CIN | T | 8 | 8 | 7 | 18-20 | 7 | 3.5 | 2:44 | 9,672 | +++ | |||
| 40 | 40 | Thursday, May 30 | boxscore | PIT | NYM | L | 3 | 6 | 18-21 | 9 | 5.0 | Koosman | Bunning | Koonce | 2:56 | 0 | - | ||
| 41 | 41 | Thursday, May 30 | boxscore | PIT | NYM | L | 4 | 5 | 18-22 | 9 | 5.0 | Selma | Veale | Jackson | 2:39 | 19,779 | -- | ||
| 42 | 42 | Friday, May 31 | boxscore | PIT | ATL | L | 2 | 5 | 18-23 | 10 | 5.0 | Niekro | McBean | 2:02 | 7,301 | --- | |||
| 43 | 43 | Sunday, Jun 2 | boxscore | PIT | ATL | W | 8 | 4 | 19-23 | 8 | 5.5 | Kline | Cloninger | 3:03 | 0 | + | |||
| 44 | 44 | Sunday, Jun 2 | boxscore | PIT | ATL | L | 5 | 10 | 19-24 | 8 | 5.5 | Jarvis | Moose | Niekro | 2:52 | 21,491 | - | ||
| 45 | 45 | Monday, Jun 3 | boxscore | PIT | @ | LAD | L | 0 | 2 | 19-25 | 8 | 6.5 | Osteen | Veale | 2:28 | 14,568 | -- | ||
| 46 | 46 | Tuesday, Jun 4 | boxscore | PIT | @ | LAD | L | 0 | 5 | 19-26 | 9 | 7.5 | Drysdale | Bunning | 2:20 | 30,422 | --- | ||
| 47 | 47 | Wednesday, Jun 5 | boxscore | PIT | @ | LAD | L | 1 | 2 | 10 | 19-27 | 9 | 8.5 | Singer | McBean | 2:30 | 14,660 | ---- | |
| 48 | 48 | Thursday, Jun 6 | boxscore | PIT | @ | LAD | L | 2 | 4 | 19-28 | 9 | 9.5 | Sutton | Sisk | 2:58 | 14,112 | ----- | ||
| 49 | 49 | Friday, Jun 7 | boxscore | PIT | @ | HOU | W | 5 | 0 | 20-28 | 9 | 8.5 | Blass | Giusti | 2:54 | 14,578 | + | ||
| 50 | 50 | Saturday, Jun 8 | boxscore | PIT | @ | HOU | L | 2 | 3 | 20-29 | 9 | 9.5 | Lemaster | Bunning | Buzhardt | 2:33 | 21,447 | - | |
| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak | |||
| 51 | 51 | Sunday, Jun 9 | boxscore | PIT | @ | HOU | W | 3 | 1 | 21-29 | 9 | 9.0 | Moose | Cuellar | Kline | 2:18 | 12,862 | + | |
| 52 | 52 | Monday, Jun 10 | boxscore | PIT | @ | SFG | L | 0 | 8 | 21-30 | 9 | 10.0 | Marichal | Veale | 2:35 | 4,356 | - | ||
| 53 | 53 | Tuesday, Jun 11 | boxscore | PIT | @ | SFG | W | 7 | 4 | 22-30 | 9 | 10.0 | Kline | Sadecki | Face | 2:59 | 7,807 | + | |
| 54 | 54 | Wednesday, Jun 12 | boxscore | PIT | @ | SFG | L | 2 | 4 | 22-31 | 9 | 10.0 | Bolin | Bunning | Linzy | 2:35 | 4,771 | - | |
| 55 | 55 | Thursday, Jun 13 | boxscore | PIT | @ | SFG | W | 8 | 7 | 23-31 | 9 | 10.0 | Sisk | Linzy | Face | 3:10 | 6,028 | + | |
| 56 | 56 | Friday, Jun 14 | boxscore | PIT | HOU | W | 3 | 0 | 24-31 | 9 | 9.0 | Moose | Lemaster | 1:59 | 8,603 | ++ | |||
| 57 | 57 | Saturday, Jun 15 | boxscore | PIT | HOU | W | 13 | 2 | 25-31 | 9 | 9.0 | Veale | Wilson | 2:51 | 5,005 | +++ | |||
| 58 | 58 | Sunday, Jun 16 | boxscore | PIT | HOU | W | 3 | 1 | 26-31 | 9 | 8.5 | Blass | Cuellar | Face | 2:19 | 0 | ++++ | ||
| 59 | 59 | Sunday, Jun 16 | boxscore | PIT | HOU | W | 11 | 2 | 27-31 | 9 | 8.5 | Sisk | Dierker | Kline | 2:45 | 8,448 | +++++ | ||
| 60 | 60 | Monday, Jun 17 | boxscore | PIT | HOU | W | 4 | 3 | 28-31 | 8 | 8.0 | McBean | Giusti | Face | 2:37 | 5,887 | ++++++ | ||
| 61 | 61 | Tuesday, Jun 18 | boxscore | PIT | LAD | W | 3 | 2 | 10 | 29-31 | 6 | 8.0 | Ellis | Aguirre | 2:50 | 13,721 | +++++++ | ||
| 62 | 62 | Wednesday, Jun 19 | boxscore | PIT | LAD | W | 2 | 1 | 30-31 | 6 | 8.0 | Veale | Singer | 2:26 | 10,799 | ++++++++ | |||
| 63 | 63 | Thursday, Jun 20 | boxscore | PIT | LAD | W | 7 | 3 | 31-31 | 6 | 8.5 | Blass | Sutton | 2:27 | 0 | +++++++++ | |||
| 64 | 64 | Thursday, Jun 20 | boxscore | PIT | LAD | L | 2 | 3 | 10 | 31-32 | 6 | 8.5 | Billingham | Face | Purdin | 2:58 | 19,838 | - | |
| 65 | 65 | Friday, Jun 21 | boxscore | PIT | SFG | L | 0 | 3 | 31-33 | 7 | 9.5 | Bolin | McBean | 2:03 | 16,222 | -- | |||
| 66 | 66 | Saturday, Jun 22 | boxscore | PIT | SFG | L | 3 | 10 | 31-34 | 7 | 10.5 | McCormick | Moose | 2:47 | 15,617 | --- | |||
| 67 | 67 | Sunday, Jun 23 | boxscore | PIT | SFG | L | 1 | 2 | 31-35 | 8 | 11.0 | Marichal | Bunning | 2:30 | 16,843 | ---- | |||
| 68 | 68 | Tuesday, Jun 25 | boxscore | PIT | @ | STL | W | 3 | 2 | 32-35 | 8 | 10.0 | Veale | Carlton | Walker | 2:35 | 26,927 | + | |
| 69 | 69 | Wednesday, Jun 26 | boxscore | PIT | @ | STL | L | 0 | 3 | 32-36 | 8 | 10.0 | Gibson | McBean | 1:53 | 0 | - | ||
| 70 | 70 | Wednesday, Jun 26 | boxscore | PIT | @ | STL | W | 3 | 1 | 33-36 | 8 | 10.0 | Blass | Jaster | Kline | 2:27 | 30,641 | + | |
| 71 | 71 | Friday, Jun 28 | boxscore | PIT | @ | PHI | W | 10 | 1 | 34-36 | 6 | 10.0 | Bunning | Fryman | 3:02 | 18,994 | ++ | ||
| 72 | 72 | Saturday, Jun 29 | boxscore | PIT | @ | PHI | W | 1 | 0 | 35-36 | 5 | 9.0 | Moose | Jackson | 2:04 | 17,052 | +++ | ||
| 73 | 73 | Sunday, Jun 30 | boxscore | PIT | @ | PHI | W | 5 | 2 | 36-36 | 5 | 8.0 | Veale | Farrell | 3:00 | 8,884 | ++++ | ||
| 74 | 74 | Tuesday, Jul 2 | boxscore | PIT | @ | NYM | W | 2 | 1 | 37-36 | 4 | 8.5 | McBean | Selma | Face | 2:38 | 27,350 | +++++ | |
| 75 | 75 | Wednesday, Jul 3 | boxscore | PIT | @ | NYM | W | 8 | 1 | 38-36 | 3 | 8.5 | Blass | Ryan | 2:52 | 14,909 | ++++++ | ||
| 76 | 76 | Thursday, Jul 4 | boxscore | PIT | @ | NYM | W | 3 | 2 | 39-36 | 4 | 9.0 | Kline | Koosman | 2:34 | 0 | +++++++ | ||
| 77 | 77 | Thursday, Jul 4 | boxscore | PIT | @ | NYM | L | 3 | 4 | 39-37 | 4 | 9.0 | Cardwell | Bunning | Taylor | 2:32 | 29,587 | - | |
| 78 | 78 | Friday, Jul 5 | boxscore | PIT | @ | CHC | W | 4 | 0 | 40-37 | 2 | 9.0 | Veale | Nye | 2:26 | 16,040 | + | ||
| 79 | 79 | Saturday, Jul 6 | boxscore | PIT | @ | CHC | L | 1 | 6 | 40-38 | 4 | 10.5 | Jenkins | Walker | 2:50 | 0 | - | ||
| 80 | 80 | Saturday, Jul 6 | boxscore | PIT | @ | CHC | L | 2 | 10 | 40-39 | 4 | 10.5 | Ross | Sisk | 2:38 | 30,794 | -- | ||
| 81 | 81 | Sunday, Jul 7 | boxscore | PIT | @ | CHC | L | 4 | 5 | 40-40 | 5 | 12.0 | Regan | Veale | 2:36 | 0 | --- | ||
| 82 | 82 | Sunday, Jul 7 | boxscore | PIT | @ | CHC | L | 3 | 4 | 40-41 | 5 | 12.0 | Regan | Face | 2:33 | 32,447 | ---- | ||
| 83 | 83 | Thursday, Jul 11 | boxscore | PIT | PHI | L | 0 | 5 | 40-42 | 6 | 13.0 | Jackson | Veale | 2:22 | 0 | ----- | |||
| 84 | 84 | Thursday, Jul 11 | boxscore | PIT | PHI | L | 1 | 4 | 40-43 | 6 | 13.0 | Short | Moose | Boozer | 2:51 | 15,371 | ------ | ||
| 85 | 85 | Friday, Jul 12 | boxscore | PIT | PHI | L | 2 | 3 | 40-44 | 7 | 14.0 | James | Bunning | Boozer | 2:20 | 9,206 | ------- | ||
| 86 | 86 | Saturday, Jul 13 | boxscore | PIT | PHI | L | 2 | 3 | 16 | 40-45 | 7 | 15.0 | Short | Ellis | 4:44 | 6,869 | -------- | ||
| 87 | 87 | Sunday, Jul 14 | boxscore | PIT | CHC | L | 2 | 6 | 40-46 | 7 | 16.0 | Niekro | McBean | 2:34 | 19,335 | --------- | |||
| 88 | 88 | Monday, Jul 15 | boxscore | PIT | CHC | L | 1 | 2 | 10 | 40-47 | 7 | 17.0 | Jenkins | Walker | 2:38 | 6,648 | ---------- | ||
| 89 | 89 | Tuesday, Jul 16 | boxscore | PIT | NYM | W | 3 | 2 | 41-47 | 7 | 17.0 | Kline | Selma | 2:37 | 6,123 | + | |||
| 90 | 90 | Wednesday, Jul 17 | boxscore | PIT | NYM | W | 8 | 2 | 42-47 | 7 | 17.0 | Blass | Koosman | 2:44 | 0 | ++ | |||
| 91 | 91 | Wednesday, Jul 17 | boxscore | PIT | NYM | L | 4 | 5 | 42-48 | 7 | 17.0 | Koonce | Walker | Taylor | 2:54 | 8,974 | - | ||
| 92 | 92 | Thursday, Jul 18 | boxscore | PIT | NYM | L | 0 | 3 | 42-49 | 7 | 17.0 | Seaver | McBean | 2:33 | 6,234 | -- | |||
| 93 | 93 | Friday, Jul 19 | boxscore | PIT | @ | ATL | W | 2 | 0 | 43-49 | 7 | 16.0 | Moose | Reed | 2:17 | 17,286 | + | ||
| 94 | 94 | Saturday, Jul 20 | boxscore | PIT | @ | ATL | W | 2 | 1 | 44-49 | 7 | 16.0 | Veale | Niekro | 2:15 | 20,771 | ++ | ||
| 95 | 95 | Sunday, Jul 21 | boxscore | PIT | @ | ATL | W | 6 | 0 | 45-49 | 7 | 15.5 | Blass | Pappas | 2:35 | 25,109 | +++ | ||
| 96 | 96 | Tuesday, Jul 23 | boxscore | PIT | CIN | L | 6 | 7 | 12 | 45-50 | 7 | 17.0 | Arrigo | Face | Lee | 3:41 | 8,739 | - | |
| 97 | 97 | Thursday, Jul 25 | boxscore | PIT | CIN | L | 0 | 2 | 45-51 | 7 | 18.5 | Culver | Veale | Carroll | 2:48 | 5,797 | -- | ||
| 98 | 98 | Friday, Jul 26 | boxscore | PIT | STL | L | 1 | 9 | 45-52 | 7 | 18.5 | Briles | Blass | 2:26 | 0 | --- | |||
| 99 | 99 | Friday, Jul 26 | boxscore | PIT | STL | W | 5 | 4 | 10 | 46-52 | 7 | 18.5 | Kline | Granger | 2:43 | 23,515 | + | ||
| 100 | 100 | Saturday, Jul 27 | boxscore | PIT | STL | L | 0 | 4 | 46-53 | 8 | 19.5 | Carlton | Moose | 2:10 | 12,147 | - | |||
| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak | |||
| 101 | 101 | Sunday, Jul 28 | boxscore | PIT | STL | W | 7 | 1 | 47-53 | 7 | 18.5 | McBean | Jaster | 2:14 | 14,926 | + | |||
| 102 | 102 | Monday, Jul 29 | boxscore | PIT | ATL | W | 3 | 2 | 48-53 | 6 | 18.5 | Veale | Reed | 1:57 | 7,357 | ++ | |||
| 103 | 103 | Tuesday, Jul 30 | boxscore | PIT | ATL | W | 8 | 5 | 49-53 | 6 | 18.0 | Blass | Johnson | Sisk | 2:24 | 0 | +++ | ||
| 104 | 104 | Tuesday, Jul 30 | boxscore | PIT | ATL | W | 5 | 4 | 10 | 50-53 | 6 | 18.0 | Kline | Niekro | 2:46 | 11,624 | ++++ | ||
| 105 | 105 | Wednesday, Jul 31 | boxscore | PIT | @ | CIN | L | 2 | 8 | 50-54 | 6 | 18.5 | Arrigo | Moose | 2:10 | 0 | - | ||
| 106 | 106 | Wednesday, Jul 31 | boxscore | PIT | @ | CIN | W | 10 | 1 | 51-54 | 6 | 18.5 | Ellis | Ritchie | Face | 2:45 | 14,780 | + | |
| 107 | 107 | Thursday, Aug 1 | boxscore | PIT | @ | CIN | W | 6 | 1 | 52-54 | 6 | 18.5 | Sisk | Maloney | Face | 2:23 | 10,926 | ++ | |
| 108 | 108 | Friday, Aug 2 | boxscore | PIT | @ | SFG | W | 3 | 1 | 53-54 | 6 | 17.5 | McBean | Perry | 2:06 | 6,423 | +++ | ||
| 109 | 109 | Saturday, Aug 3 | boxscore | PIT | @ | SFG | L | 0 | 7 | 53-55 | 6 | 17.5 | Sadecki | Veale | 2:15 | 9,251 | - | ||
| 110 | 110 | Sunday, Aug 4 | boxscore | PIT | @ | SFG | L | 0 | 2 | 53-56 | 6 | 17.5 | Bolin | Bunning | 2:09 | 18,151 | -- | ||
| 111 | 111 | Monday, Aug 5 | boxscore | PIT | @ | LAD | L | 0 | 1 | 10 | 53-57 | 6 | 18.5 | Brewer | Blass | 2:35 | 17,851 | --- | |
| 112 | 112 | Tuesday, Aug 6 | boxscore | PIT | @ | LAD | W | 4 | 1 | 54-57 | 6 | 17.5 | Moose | Drysdale | Kline | 2:36 | 15,732 | + | |
| 113 | 113 | Wednesday, Aug 7 | boxscore | PIT | @ | LAD | L | 2 | 6 | 54-58 | 6 | 18.5 | Sutton | McBean | 2:25 | 13,848 | - | ||
| 114 | 114 | Thursday, Aug 8 | boxscore | PIT | @ | HOU | W | 4 | 3 | 55-58 | 6 | 18.5 | Kline | Cuellar | Face | 2:29 | 14,851 | + | |
| 115 | 115 | Friday, Aug 9 | boxscore | PIT | @ | HOU | L | 1 | 2 | 55-59 | 6 | 19.5 | Shea | Ellis | 2:30 | 15,270 | - | ||
| 116 | 116 | Saturday, Aug 10 | boxscore | PIT | @ | HOU | L | 3 | 16 | 55-60 | 6 | 20.0 | Coombs | Blass | 2:53 | 12,814 | -- | ||
| 117 | 117 | Saturday, Aug 10 | boxscore | PIT | @ | HOU | W | 7 | 4 | 56-60 | 6 | 20.0 | Kline | House | 2:37 | 25,814 | + | ||
| 118 | 118 | Sunday, Aug 11 | boxscore | PIT | @ | HOU | L | 1 | 5 | 56-61 | 6 | 20.0 | Dierker | Sisk | Giusti | 2:08 | 16,892 | - | |
| 119 | 119 | Tuesday, Aug 13 | boxscore | PIT | SFG | L | 0 | 3 | 56-62 | 6 | 19.5 | Marichal | Veale | 2:25 | 9,135 | -- | |||
| 120 | 120 | Wednesday, Aug 14 | boxscore | PIT | SFG | L | 1 | 2 | 10 | 56-63 | 6 | 20.5 | Perry | Kline | 2:30 | 6,926 | --- | ||
| 121 | 121 | Thursday, Aug 15 | boxscore | PIT | SFG | W | 2 | 0 | 57-63 | 6 | 20.5 | Blass | Bolin | 2:08 | 6,859 | + | |||
| 122 | 122 | Friday, Aug 16 | boxscore | PIT | LAD | L | 4 | 8 | 57-64 | 6 | 20.5 | Drysdale | McBean | Billingham | 2:49 | 8,221 | - | ||
| 123 | 123 | Saturday, Aug 17 | boxscore | PIT | LAD | W | 3 | 0 | 58-64 | 6 | 19.5 | Moose | Kekich | Kline | 2:21 | 8,181 | + | ||
| 124 | 124 | Sunday, Aug 18 | boxscore | PIT | LAD | W | 5 | 1 | 59-64 | 6 | 19.5 | Veale | Sutton | 2:32 | 17,423 | ++ | |||
| 125 | 125 | Monday, Aug 19 | boxscore | PIT | @ | CIN | L | 3 | 8 | 59-65 | 6 | 20.5 | Arrigo | Bunning | 2:45 | 6,659 | - | ||
| 126 | 126 | Tuesday, Aug 20 | boxscore | PIT | @ | CIN | W | 8 | 3 | 60-65 | 6 | 19.5 | Ellis | Ritchie | Kline | 2:54 | 8,103 | + | |
| 127 | 127 | Wednesday, Aug 21 | boxscore | PIT | @ | CIN | W | 19 | 1 | 61-65 | 6 | 19.5 | Blass | Maloney | Face | 2:51 | 8,155 | ++ | |
| 128 | 128 | Thursday, Aug 22 | boxscore | PIT | @ | CIN | L | 5 | 7 | 61-66 | 6 | 19.5 | Abernathy | Sisk | 2:51 | 7,195 | - | ||
| 129 | 129 | Friday, Aug 23 | boxscore | PIT | @ | STL | L | 2 | 3 | 11 | 61-67 | 6 | 20.5 | Hoerner | Kline | 3:00 | 34,845 | -- | |
| 130 | 130 | Saturday, Aug 24 | boxscore | PIT | @ | STL | W | 6 | 4 | 62-67 | 6 | 19.5 | Face | Gibson | 2:35 | 31,019 | + | ||
| 131 | 131 | Sunday, Aug 25 | boxscore | PIT | @ | STL | L | 2 | 4 | 62-68 | 6 | 20.5 | Briles | Ellis | Hoerner | 2:03 | 26,756 | - | |
| 132 | 132 | Monday, Aug 26 | boxscore | PIT | @ | ATL | W | 4 | 0 | 63-68 | 6 | 19.5 | Blass | Pappas | 2:06 | 7,491 | + | ||
| 133 | 133 | Tuesday, Aug 27 | boxscore | PIT | @ | ATL | W | 4 | 3 | 11 | 64-68 | 5 | 18.5 | Kline | Britton | Face | 2:54 | 6,633 | ++ |
| 134 | 134 | Wednesday, Aug 28 | boxscore | PIT | STL | L | 0 | 8 | 64-69 | 6 | 19.5 | Gibson | Veale | 2:20 | 11,197 | - | |||
| 135 | 135 | Thursday, Aug 29 | boxscore | PIT | STL | L | 0 | 5 | 64-70 | 6 | 20.5 | Washburn | Moose | 2:43 | 7,681 | -- | |||
| 136 | 136 | Friday, Aug 30 | boxscore | PIT | ATL | L | 0 | 2 | 64-71 | 6 | 20.5 | Pappas | Ellis | 2:10 | 5,896 | --- | |||
| 137 | 137 | Saturday, Aug 31 | boxscore | PIT | ATL | W | 8 | 0 | 65-71 | 6 | 20.5 | Blass | Reed | 2:20 | 4,671 | + | |||
| 138 | 138 | Sunday, Sep 1 | boxscore | PIT | ATL | L | 7 | 8 | 11 | 65-72 | 6 | 21.5 | Raymond | Kline | Britton | 3:07 | 5,650 | - | |
| 139 | 139 | Monday, Sep 2 | boxscore | PIT | HOU | W | 6 | 1 | 66-72 | 6 | 21.0 | Veale | Cuellar | 2:15 | 0 | + | |||
| 140 | 140 | Monday, Sep 2 | boxscore | PIT | HOU | W | 4 | 3 | 10 | 67-72 | 6 | 21.0 | Dal Canton | Ray | 2:52 | 6,225 | ++ | ||
| 141 | 141 | Tuesday, Sep 3 | boxscore | PIT | HOU | W | 3 | 2 | 68-72 | 6 | 21.0 | Ellis | Dierker | Walker | 2:10 | 3,003 | +++ | ||
| 142 | 142 | Friday, Sep 6 | boxscore | PIT | NYM | W | 2 | 1 | 69-72 | 6 | 19.0 | Blass | McAndrew | 2:13 | 4,082 | ++++ | |||
| 143 | 143 | Saturday, Sep 7 | boxscore | PIT | NYM | L | 3 | 4 | 69-73 | 6 | 19.0 | Koosman | Bunning | Taylor | 2:43 | 4,002 | - | ||
| 144 | 144 | Sunday, Sep 8 | boxscore | PIT | NYM | W | 3 | 0 | 70-73 | 6 | 19.0 | Veale | Seaver | 2:02 | 5,424 | + | |||
| 145 | 145 | Monday, Sep 9 | boxscore | PIT | PHI | L | 7 | 8 | 15 | 70-74 | 6 | 19.0 | Short | Dal Canton | 4:29 | 2,664 | - | ||
| 146 | 146 | Wednesday, Sep 11 | boxscore | PIT | PHI | L | 6 | 8 | 12 | 70-75 | 6 | 19.0 | Wagner | McBean | Farrell | 3:42 | 0 | -- | |
| 147 | 147 | Wednesday, Sep 11 | boxscore | PIT | PHI | W | 6 | 4 | 71-75 | 6 | 19.0 | Blass | Wise | Walker | 2:50 | 2,789 | + | ||
| 148 | 148 | Friday, Sep 13 | boxscore | PIT | @ | NYM | L | 0 | 2 | 71-76 | 6 | 19.0 | Koosman | Moose | 2:08 | 17,245 | - | ||
| 149 | 149 | Saturday, Sep 14 | boxscore | PIT | @ | NYM | W | 6 | 0 | 72-76 | 6 | 19.0 | Veale | Seaver | 2:30 | 15,676 | + | ||
| 150 | 150 | Sunday, Sep 15 | boxscore | PIT | @ | NYM | W | 3 | 0 | 73-76 | 6 | 19.0 | Blass | Cardwell | 2:22 | 33,838 | ++ | ||
| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak | |||
| 151 | 151 | Monday, Sep 16 | boxscore | PIT | @ | PHI | W | 6 | 1 | 74-76 | 6 | 18.5 | Ellis | Wise | 2:42 | 2,087 | +++ | ||
| 152 | 152 | Tuesday, Sep 17 | boxscore | PIT | @ | PHI | W | 4 | 2 | 75-76 | 6 | 17.5 | Moose | Short | Dal Canton | 2:42 | 2,576 | ++++ | |
| 153 | 153 | Wednesday, Sep 18 | boxscore | PIT | @ | PHI | L | 1 | 2 | 75-77 | 6 | 18.5 | Johnson | Veale | Wagner | 1:58 | 2,463 | - | |
| 154 | 154 | Friday, Sep 20 | boxscore | PIT | CHC | W | 5 | 0 | 76-77 | 6 | 17.0 | Blass | Jenkins | 2:19 | 4,478 | + | |||
| 155 | 155 | Saturday, Sep 21 | boxscore | PIT | CHC | W | 5 | 1 | 77-77 | 6 | 16.0 | Ellis | Niekro | 2:27 | 3,429 | ++ | |||
| 156 | 156 | Sunday, Sep 22 | boxscore | PIT | CHC | W | 5 | 1 | 78-77 | 4 | 15.0 | Moose | Holtzman | Dal Canton | 2:49 | 27,405 | +++ | ||
| 157 | 157 | Monday, Sep 23 | boxscore | PIT | CIN | L | 6 | 9 | 78-78 | 4 | 15.0 | Kelso | Kline | Carroll | 3:09 | 0 | - | ||
| 158 | 158 | Monday, Sep 23 | boxscore | PIT | CIN | W | 2 | 1 | 10 | 79-78 | 4 | 15.0 | Kline | Kelso | 2:55 | 4,232 | + | ||
| 159 | 159 | Tuesday, Sep 24 | boxscore | PIT | CIN | W | 2 | 0 | 80-78 | 4 | 14.0 | Blass | Nolan | 2:24 | 4,044 | ++ | |||
| 160 | 160 | Wednesday, Sep 25 | boxscore | PIT | CIN | L | 0 | 3 | 80-79 | 5 | 15.0 | Maloney | Ellis | 2:20 | 4,577 | - | |||
| 161 | 161 | Friday, Sep 27 | boxscore | PIT | @ | CHC | L | 1 | 4 | 80-80 | 5 | 16.0 | Holtzman | Moose | Regan | 2:02 | 2,384 | -- | |
| 162 | 162 | Saturday, Sep 28 | boxscore | PIT | @ | CHC | L | 3 | 4 | 80-81 | 5 | 16.0 | Jenkins | Blass | 2:26 | 10,940 | --- | ||
| 163 | 163 | Sunday, Sep 29 | boxscore | PIT | @ | CHC | L | 4 | 5 | 80-82 | 6 | 17.0 | Regan | Moose | 2:39 | 16,860 | ---- | ||
| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak |
Rank and Games Behind are at the end of all games played on that date.