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| Season Summary | 78-76, Final Rank:4, GB: 9.0 | |
| Days in First | never | |
| Biggest Lead | never led | |
| Farthest Behind | 11.5 | last on Tuesday, Aug 11, for days on which they played |
| Most Games over .500 | 8 | last on Sunday, Aug 30 |
| Most Games under .500 | 6 | last on Friday, Aug 7 |
| Longest Winning Streak | 6 | Saturday, May 30 to Thursday, Jun 4 |
| Longest Losing Streak | 9 | Tuesday, Jul 21 to Wednesday, Jul 29 |
| Most Runs Allowed | 14 | Monday, May 11 |
| Most Runs Scored | 18 | Thursday, Aug 6 |
| Longest Game (innings) | 14 | Saturday, Aug 8 |
| Times Shutout by Opponent | 16 | |
| Times Opponent Shutout | 7 | |
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| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Thursday, Apr 9 | boxscore | PIT | @ | CIN | L | 1 | 4 | 0-1 | 8 | 1.0 | Purkey | Kline | 2:05 | 32,190 | - | ||
| 2 | 2 | Friday, Apr 10 | boxscore | PIT | MLN | L | 0 | 8 | 0-2 | 8 | 1.5 | Spahn | Friend | 2:16 | 33,317 | -- | |||
| 3 | 3 | Saturday, Apr 11 | boxscore | PIT | MLN | L | 3 | 4 | 0-3 | 8 | 2.5 | Burdette | Law | 11,800 | --- | ||||
| 4 | 4 | Tuesday, Apr 14 | boxscore | PIT | @ | CIN | L | 2 | 3 | 0-4 | 8 | 3.5 | Purkey | Witt | 2:14 | 7,631 | ---- | ||
| 5 | 5 | Wednesday, Apr 15 | boxscore | PIT | @ | CIN | L | 5 | 10 | 0-5 | 8 | 4.0 | Nuxhall | Friend | Mabe | 2:14 | 3,228 | ----- | |
| 6 | 6 | Friday, Apr 17 | boxscore | PIT | @ | MLN | T | 2 | 2 | 0-5 | 8 | 4.5 | 2:31 | 8,562 | ----- | ||||
| 7 | 7 | Saturday, Apr 18 | boxscore | PIT | @ | MLN | W | 11 | 5 | 1-5 | 7 | 3.5 | Law | Buhl | 2:37 | 15,703 | + | ||
| 8 | 8 | Wednesday, Apr 22 | boxscore | PIT | CIN | W | 9 | 8 | 2-5 | 7 | 4.0 | Face | Pena | 2:22 | 16,038 | ++ | |||
| 9 | 9 | Thursday, Apr 23 | boxscore | PIT | CIN | L | 2 | 5 | 2-6 | 7 | 4.0 | Lawrence | Witt | 2:32 | 18,819 | - | |||
| 10 | 10 | Friday, Apr 24 | boxscore | PIT | @ | PHI | W | 8 | 5 | 3-6 | 7 | 4.0 | Face | Schroll | 2:53 | 15,675 | + | ||
| 11 | 11 | Saturday, Apr 25 | boxscore | PIT | @ | PHI | W | 4 | 2 | 4-6 | 6 | 3.0 | Haddix | Morehead | 2:03 | 6,678 | ++ | ||
| 12 | 12 | Sunday, Apr 26 | boxscore | PIT | @ | PHI | W | 9 | 2 | 5-6 | 6 | 3.0 | Law | Cardwell | 2:14 | 0 | +++ | ||
| 13 | 13 | Sunday, Apr 26 | boxscore | PIT | @ | PHI | L | 5 | 10 | 5-7 | 6 | 3.0 | Meyer | Friend | 2:52 | 19,266 | - | ||
| 14 | 14 | Monday, Apr 27 | boxscore | PIT | LAD | L | 3 | 9 | 5-8 | 7 | 4.0 | Drysdale | Witt | 2:39 | 10,689 | -- | |||
| 15 | 15 | Wednesday, Apr 29 | boxscore | PIT | SFG | W | 3 | 2 | 6-8 | 7 | 3.0 | Kline | Antonelli | 2:02 | 19,799 | + | |||
| 16 | 16 | Friday, May 1 | boxscore | PIT | STL | L | 6 | 7 | 6-9 | 7 | 3.5 | Mizell | Friend | Brosnan | 2:41 | 18,950 | - | ||
| 17 | 17 | Saturday, May 2 | boxscore | PIT | STL | W | 2 | 1 | 7-9 | 6 | 3.0 | Haddix | McDaniel | 2:15 | 10,758 | + | |||
| 18 | 18 | Sunday, May 3 | boxscore | PIT | STL | W | 4 | 3 | 10 | 8-9 | 6 | 3.0 | Face | Brosnan | 2:48 | 0 | ++ | ||
| 19 | 19 | Sunday, May 3 | boxscore | PIT | STL | L | 1 | 3 | 8-10 | 6 | 3.0 | Blaylock | Daniels | McDaniel | 1:26 | 26,080 | - | ||
| 20 | 20 | Monday, May 4 | boxscore | PIT | CHC | W | 2 | 1 | 9-10 | 5 | 2.5 | Kline | Anderson | Face | 14,421 | + | |||
| 21 | 21 | Tuesday, May 5 | boxscore | PIT | CHC | L | 3 | 6 | 9-11 | 7 | 3.0 | Hobbie | Friend | 2:39 | 17,429 | - | |||
| 22 | 22 | Wednesday, May 6 | boxscore | PIT | CHC | L | 0 | 3 | 9-12 | 7 | 4.0 | Hillman | Haddix | -- | |||||
| 23 | 23 | Thursday, May 7 | boxscore | PIT | PHI | W | 5 | 4 | 10 | 10-12 | 6 | 3.5 | Face | Owens | 2:24 | 10,358 | + | ||
| 24 | 24 | Friday, May 8 | boxscore | PIT | PHI | L | 1 | 8 | 10-13 | 7 | 3.5 | Conley | Witt | Farrell | 2:36 | 17,691 | - | ||
| 25 | 25 | Saturday, May 9 | boxscore | PIT | PHI | W | 9 | 1 | 11-13 | 6 | 3.5 | Kline | Gomez | 2:10 | 9,633 | + | |||
| 26 | 26 | Sunday, May 10 | boxscore | PIT | PHI | L | 3 | 6 | 11-14 | 6 | 3.5 | Roberts | Friend | Farrell | 0 | - | |||
| 27 | 27 | Sunday, May 10 | boxscore | PIT | PHI | W | 7 | 6 | 12-14 | 6 | 3.5 | Haddix | Hearn | Face | 2:25 | 23,549 | + | ||
| 28 | 28 | Monday, May 11 | boxscore | PIT | @ | SFG | L | 4 | 14 | 12-15 | 6 | 4.5 | Sanford | Daniels | 2:37 | 13,789 | - | ||
| 29 | 29 | Tuesday, May 12 | boxscore | PIT | @ | SFG | W | 6 | 5 | 12 | 13-15 | 6 | 4.0 | Daniels | Jones | 3:51 | 8,084 | + | |
| 30 | 30 | Wednesday, May 13 | boxscore | PIT | @ | LAD | W | 6 | 4 | 14-15 | 6 | 3.5 | Face | Drysdale | 2:43 | 16,718 | ++ | ||
| 31 | 31 | Thursday, May 14 | boxscore | PIT | @ | LAD | W | 7 | 6 | 15-15 | 5 | 3.5 | Face | Labine | 2:47 | 15,416 | +++ | ||
| 32 | 32 | Saturday, May 16 | boxscore | PIT | @ | CHC | L | 2 | 3 | 15-16 | 6 | 4.5 | Elston | Haddix | 2:25 | 10,496 | - | ||
| 33 | 33 | Sunday, May 17 | boxscore | PIT | @ | CHC | W | 5 | 4 | 16-16 | 6 | 5.0 | Law | Anderson | Face | 0 | + | ||
| 34 | 34 | Sunday, May 17 | boxscore | PIT | @ | CHC | L | 6 | 7 | 16-17 | 6 | 5.0 | Hobbie | Daniels | Henry | 2:19 | 32,017 | - | |
| 35 | 35 | Tuesday, May 19 | boxscore | PIT | @ | STL | L | 2 | 8 | 16-18 | 6 | 6.5 | Jackson | Kline | 2:21 | 8,470 | -- | ||
| 36 | 36 | Wednesday, May 20 | boxscore | PIT | @ | STL | L | 1 | 11 | 16-19 | 6 | 6.5 | Mizell | Friend | 2:31 | 8,555 | --- | ||
| 37 | 37 | Thursday, May 21 | boxscore | PIT | @ | STL | W | 7 | 2 | 17-19 | 6 | 6.0 | Haddix | McDaniel | 2:31 | 8,141 | + | ||
| 38 | 38 | Friday, May 22 | boxscore | PIT | CIN | W | 4 | 3 | 18-19 | 6 | 6.0 | Law | Jeffcoat | 2:15 | 27,675 | ++ | |||
| 39 | 39 | Saturday, May 23 | boxscore | PIT | CIN | W | 6 | 5 | 19-19 | 4 | 5.0 | Daniels | Pena | Blackburn | 2:42 | 13,119 | +++ | ||
| 40 | 40 | Sunday, May 24 | boxscore | PIT | CIN | W | 2 | 1 | 20-19 | 3 | 4.0 | Kline | Lawrence | 2:12 | 0 | ++++ | |||
| 41 | 41 | Sunday, May 24 | boxscore | PIT | CIN | W | 5 | 4 | 10 | 21-19 | 3 | 4.0 | Blackburn | Purkey | 3:00 | 32,273 | +++++ | ||
| 42 | 42 | Tuesday, May 26 | boxscore | PIT | @ | MLN | L | 0 | 1 | 13 | 21-20 | 3 | 4.5 | Burdette | Haddix | 2:54 | 19,194 | - | |
| 43 | 43 | Wednesday, May 27 | boxscore | PIT | @ | MLN | L | 3 | 4 | 21-21 | 4 | 5.5 | Spahn | Law | McMahon | 2:15 | 17,721 | -- | |
| 44 | 44 | Thursday, May 28 | boxscore | PIT | @ | MLN | W | 3 | 0 | 22-21 | 3 | 4.5 | Friend | Jay | 2:13 | 12,635 | + | ||
| 45 | 45 | Friday, May 29 | boxscore | PIT | @ | CIN | L | 5 | 8 | 22-22 | 4 | 5.5 | Mabe | Kline | Acker | 2:29 | 18,958 | - | |
| 46 | 46 | Saturday, May 30 | boxscore | PIT | @ | CIN | W | 3 | 1 | 23-22 | 3 | 5.5 | Daniels | O'Toole | Face | 2:17 | 8,613 | + | |
| 47 | 47 | Sunday, May 31 | boxscore | PIT | @ | CIN | W | 6 | 2 | 24-22 | 3 | 4.5 | Law | Purkey | 2:10 | 0 | ++ | ||
| 48 | 48 | Sunday, May 31 | boxscore | PIT | @ | CIN | W | 14 | 11 | 25-22 | 3 | 4.5 | Face | Mabe | 3:15 | 17,847 | +++ | ||
| 49 | 49 | Tuesday, Jun 2 | boxscore | PIT | STL | W | 3 | 0 | 26-22 | 3 | 4.0 | Haddix | Jackson | 2:17 | 28,644 | ++++ | |||
| 50 | 50 | Wednesday, Jun 3 | boxscore | PIT | STL | W | 5 | 3 | 27-22 | 3 | 4.0 | Friend | Mizell | Face | 2:16 | 16,857 | +++++ | ||
| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak | |||
| 51 | 51 | Thursday, Jun 4 | boxscore | PIT | STL | W | 9 | 3 | 28-22 | 3 | 3.0 | Kline | Broglio | 7,555 | ++++++ | ||||
| 52 | 52 | Friday, Jun 5 | boxscore | PIT | CHC | L | 5 | 10 | 28-23 | 3 | 3.0 | Hobbie | Law | Elston | 2:58 | 27,335 | - | ||
| 53 | 53 | Saturday, Jun 6 | boxscore | PIT | CHC | L | 2 | 8 | 28-24 | 3 | 3.0 | Drabowsky | Daniels | 2:10 | 12,953 | -- | |||
| 54 | 54 | Sunday, Jun 7 | boxscore | PIT | CHC | L | 2 | 4 | 28-25 | 4 | 4.5 | Buzhardt | Haddix | Henry | 2:23 | 0 | --- | ||
| 55 | 55 | Sunday, Jun 7 | boxscore | PIT | CHC | L | 0 | 1 | 28-26 | 4 | 4.5 | Singleton | Friend | Elston | 32,078 | ---- | |||
| 56 | 56 | Monday, Jun 8 | boxscore | PIT | SFG | W | 12 | 9 | 11 | 29-26 | 3 | 4.5 | Face | McCormick | 4:13 | 19,080 | + | ||
| 57 | 57 | Tuesday, Jun 9 | boxscore | PIT | SFG | L | 2 | 6 | 29-27 | 5 | 4.5 | Antonelli | Law | 2:45 | 24,272 | - | |||
| 58 | 58 | Wednesday, Jun 10 | boxscore | PIT | SFG | L | 7 | 11 | 29-28 | 5 | 4.5 | Jones | Witt | Miller | 3:03 | 24,317 | -- | ||
| 59 | 59 | Thursday, Jun 11 | boxscore | PIT | SFG | W | 12 | 9 | 30-28 | 4 | 4.5 | Face | Miller | Law | 3:24 | 9,444 | + | ||
| 60 | 60 | Friday, Jun 12 | boxscore | PIT | LAD | L | 6 | 9 | 30-29 | 5 | 4.5 | McDevitt | Daniels | Erskine | 3:35 | 27,970 | - | ||
| 61 | 61 | Saturday, Jun 13 | boxscore | PIT | LAD | W | 5 | 3 | 31-29 | 4 | 4.5 | Kline | Fowler | 2:31 | 11,944 | + | |||
| 62 | 62 | Sunday, Jun 14 | boxscore | PIT | LAD | W | 6 | 3 | 32-29 | 3 | 3.0 | Face | Labine | 2:45 | 0 | ++ | |||
| 63 | 63 | Sunday, Jun 14 | boxscore | PIT | LAD | W | 5 | 2 | 33-29 | 3 | 3.0 | Law | Erskine | 30,082 | +++ | ||||
| 64 | 64 | Tuesday, Jun 16 | boxscore | PIT | @ | CHC | W | 5 | 2 | 34-29 | 3 | 2.5 | Friend | Hillman | Face | 2:12 | 10,391 | ++++ | |
| 65 | 65 | Wednesday, Jun 17 | boxscore | PIT | @ | CHC | L | 2 | 5 | 34-30 | 3 | 2.0 | Henry | Haddix | 2:25 | 10,230 | - | ||
| 66 | 66 | Thursday, Jun 18 | boxscore | PIT | @ | CHC | W | 4 | 2 | 13 | 35-30 | 3 | 2.0 | Face | Henry | 3:04 | 7,562 | + | |
| 67 | 67 | Friday, Jun 19 | boxscore | PIT | @ | STL | W | 6 | 0 | 36-30 | 3 | 1.5 | Law | Ricketts | 2:14 | 17,461 | ++ | ||
| 68 | 68 | Saturday, Jun 20 | boxscore | PIT | @ | STL | L | 2 | 5 | 36-31 | 3 | 2.0 | Mizell | Friend | McDaniel | 2:27 | 10,698 | - | |
| 69 | 69 | Sunday, Jun 21 | boxscore | PIT | @ | STL | L | 1 | 5 | 36-32 | 3 | 2.5 | Jackson | Haddix | McDaniel | 2:04 | 0 | -- | |
| 70 | 70 | Sunday, Jun 21 | boxscore | PIT | @ | STL | W | 10 | 8 | 37-32 | 3 | 2.5 | Daniels | Blaylock | Face | 3:05 | 23,731 | + | |
| 71 | 71 | Monday, Jun 22 | boxscore | PIT | @ | SFG | L | 1 | 4 | 37-33 | 3 | 3.0 | Fisher | Kline | Worthington | 2:15 | 11,002 | - | |
| 72 | 72 | Tuesday, Jun 23 | boxscore | PIT | @ | SFG | W | 5 | 1 | 38-33 | 3 | 3.0 | Law | Jones | 2:41 | 22,706 | + | ||
| 73 | 73 | Wednesday, Jun 24 | boxscore | PIT | @ | SFG | L | 3 | 4 | 38-34 | 4 | 4.0 | McCormick | Daniels | 2:43 | 12,643 | - | ||
| 74 | 74 | Thursday, Jun 25 | boxscore | PIT | @ | SFG | W | 3 | 1 | 12 | 39-34 | 4 | 3.0 | Face | Fisher | 2:55 | 11,487 | + | |
| 75 | 75 | Friday, Jun 26 | boxscore | PIT | @ | LAD | L | 5 | 6 | 39-35 | 4 | 4.0 | Podres | Kline | McDevitt | 2:17 | 22,719 | - | |
| 76 | 76 | Saturday, Jun 27 | boxscore | PIT | @ | LAD | L | 0 | 3 | 39-36 | 4 | 4.0 | Koufax | Law | 1:59 | 31,649 | -- | ||
| 77 | 77 | Sunday, Jun 28 | boxscore | PIT | @ | LAD | L | 4 | 9 | 39-37 | 4 | 5.0 | McDevitt | Friend | Drysdale | 2:42 | 27,785 | --- | |
| 78 | 78 | Tuesday, Jun 30 | boxscore | PIT | @ | PHI | W | 4 | 3 | 40-37 | 4 | 4.0 | Haddix | Roberts | Face | 2:22 | 11,149 | + | |
| 79 | 79 | Wednesday, Jul 1 | boxscore | PIT | @ | PHI | L | 0 | 1 | 40-38 | 4 | 4.5 | Conley | Kline | 2:09 | 7,897 | - | ||
| 80 | 80 | Thursday, Jul 2 | boxscore | PIT | MLN | W | 4 | 3 | 10 | 41-38 | 4 | 3.5 | Law | McMahon | 2:22 | 28,282 | + | ||
| 81 | 81 | Friday, Jul 3 | boxscore | PIT | MLN | L | 0 | 6 | 41-39 | 4 | 4.5 | Pizarro | Witt | 2:13 | 34,093 | - | |||
| 82 | 82 | Saturday, Jul 4 | boxscore | PIT | CIN | W | 4 | 3 | 42-39 | 4 | 4.0 | Friend | Nuxhall | 2:15 | 16,548 | + | |||
| 83 | 83 | Sunday, Jul 5 | boxscore | PIT | CIN | W | 7 | 5 | 43-39 | 4 | 3.0 | Haddix | Lawrence | Face | 2:29 | 0 | ++ | ||
| 84 | 84 | Sunday, Jul 5 | boxscore | PIT | CIN | W | 3 | 2 | 11 | 44-39 | 4 | 3.0 | Kline | Pena | 2:14 | 22,622 | +++ | ||
| 85 | 85 | Thursday, Jul 9 | boxscore | PIT | CHC | W | 4 | 3 | 10 | 45-39 | 4 | 3.0 | Face | Henry | 2:41 | 22,080 | ++++ | ||
| 86 | 86 | Friday, Jul 10 | boxscore | PIT | CHC | W | 7 | 6 | 11 | 46-39 | 4 | 3.0 | Daniels | Elston | 3:15 | 25,360 | +++++ | ||
| 87 | 87 | Saturday, Jul 11 | boxscore | PIT | CHC | L | 1 | 5 | 46-40 | 4 | 4.0 | Hillman | Kline | 2:29 | 15,110 | - | |||
| 88 | 88 | Sunday, Jul 12 | boxscore | PIT | STL | W | 6 | 5 | 10 | 47-40 | 4 | 3.5 | Face | McDaniel | 2:57 | 0 | + | ||
| 89 | 89 | Sunday, Jul 12 | boxscore | PIT | STL | L | 6 | 8 | 10 | 47-41 | 4 | 3.5 | McDaniel | Porterfield | 2:35 | 25,530 | - | ||
| 90 | 90 | Tuesday, Jul 14 | boxscore | PIT | LAD | W | 9 | 1 | 48-41 | 4 | 2.5 | Law | Podres | 2:40 | 30,199 | + | |||
| 91 | 91 | Wednesday, Jul 15 | boxscore | PIT | LAD | L | 0 | 3 | 48-42 | 4 | 3.0 | Drysdale | Friend | 2:12 | 28,268 | - | |||
| 92 | 92 | Friday, Jul 17 | boxscore | PIT | SFG | L | 1 | 4 | 48-43 | 4 | 4.0 | Jones | Kline | 2:51 | 33,220 | -- | |||
| 93 | 93 | Saturday, Jul 18 | boxscore | PIT | SFG | L | 3 | 4 | 48-44 | 4 | 5.0 | Fisher | Haddix | McCormick | 2:32 | 20,577 | --- | ||
| 94 | 94 | Sunday, Jul 19 | boxscore | PIT | SFG | W | 3 | 2 | 49-44 | 3 | 4.0 | Law | Miller | 2:37 | 27,992 | + | |||
| 95 | 95 | Tuesday, Jul 21 | boxscore | PIT | PHI | L | 2 | 4 | 49-45 | 3 | 3.5 | Roberts | Friend | 1:56 | 25,960 | - | |||
| 96 | 96 | Wednesday, Jul 22 | boxscore | PIT | PHI | L | 4 | 11 | 49-46 | 4 | 4.5 | Conley | Kline | 2:36 | 17,024 | -- | |||
| 97 | 97 | Friday, Jul 24 | boxscore | PIT | @ | MLN | L | 0 | 8 | 49-47 | 4 | 6.0 | Pizarro | Haddix | 2:11 | 27,708 | --- | ||
| 98 | 98 | Saturday, Jul 25 | boxscore | PIT | @ | MLN | L | 0 | 3 | 49-48 | 4 | 6.0 | Burdette | Law | 1:59 | 25,295 | ---- | ||
| 99 | 99 | Sunday, Jul 26 | boxscore | PIT | @ | MLN | L | 0 | 4 | 49-49 | 5 | 6.5 | Spahn | Friend | 2:05 | 0 | ----- | ||
| 100 | 100 | Sunday, Jul 26 | boxscore | PIT | @ | MLN | L | 1 | 2 | 49-50 | 5 | 6.5 | Buhl | Witt | McMahon | 2:31 | 39,420 | ------ | |
| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak | |||
| 101 | 101 | Monday, Jul 27 | boxscore | PIT | @ | MLN | L | 2 | 5 | 49-51 | 5 | 7.0 | Jay | Kline | 2:13 | 15,817 | ------- | ||
| 102 | 102 | Tuesday, Jul 28 | boxscore | PIT | @ | LAD | L | 4 | 9 | 49-52 | 5 | 7.0 | Williams | Blackburn | 3:08 | 23,493 | -------- | ||
| 103 | 103 | Wednesday, Jul 29 | boxscore | PIT | @ | LAD | L | 0 | 2 | 49-53 | 5 | 7.5 | Craig | Law | 2:09 | 24,324 | --------- | ||
| 104 | 104 | Thursday, Jul 30 | boxscore | PIT | @ | LAD | W | 5 | 4 | 12 | 50-53 | 5 | 7.0 | Daniels | Williams | Gross | 3:21 | 24,221 | + |
| 105 | 105 | Friday, Jul 31 | boxscore | PIT | @ | SFG | L | 3 | 4 | 50-54 | 5 | 8.0 | Sanford | Haddix | 2:28 | 22,371 | - | ||
| 106 | 106 | Saturday, Aug 1 | boxscore | PIT | @ | SFG | L | 5 | 9 | 50-55 | 5 | 9.0 | Byerly | Daniels | Miller | 2:50 | 21,567 | -- | |
| 107 | 107 | Sunday, Aug 2 | boxscore | PIT | @ | SFG | L | 3 | 5 | 50-56 | 5 | 10.0 | Antonelli | Porterfield | 2:21 | 22,653 | --- | ||
| 108 | 108 | Tuesday, Aug 4 | boxscore | PIT | @ | STL | W | 7 | 3 | 51-56 | 5 | 9.0 | Law | Gibson | 2:36 | 10,971 | + | ||
| 109 | 109 | Wednesday, Aug 5 | boxscore | PIT | @ | STL | L | 0 | 3 | 51-57 | 5 | 10.0 | Broglio | Friend | 2:16 | 8,079 | - | ||
| 110 | 110 | Thursday, Aug 6 | boxscore | PIT | @ | STL | W | 18 | 2 | 52-57 | 5 | 10.0 | Haddix | Jackson | 3:02 | 8,503 | + | ||
| 111 | 111 | Friday, Aug 7 | boxscore | PIT | @ | CHC | L | 0 | 4 | 52-58 | 5 | 11.0 | Drabowsky | Kline | 2:01 | 7,434 | - | ||
| 112 | 112 | Saturday, Aug 8 | boxscore | PIT | @ | CHC | W | 4 | 3 | 14 | 53-58 | 6 | 10.0 | Gross | Donnelly | 4:19 | 5,693 | + | |
| 113 | 113 | Sunday, Aug 9 | boxscore | PIT | @ | CHC | W | 5 | 3 | 10 | 54-58 | 4 | 10.0 | Face | Elston | 2:38 | 19,138 | ++ | |
| 114 | 114 | Tuesday, Aug 11 | boxscore | PIT | @ | PHI | L | 4 | 6 | 54-59 | 5 | 11.5 | Cardwell | Friend | Farrell | 2:21 | 12,127 | - | |
| 115 | 115 | Wednesday, Aug 12 | boxscore | PIT | @ | PHI | W | 6 | 2 | 55-59 | 5 | 11.0 | Haddix | Roberts | 2:23 | 11,163 | + | ||
| 116 | 116 | Friday, Aug 14 | boxscore | PIT | MLN | W | 2 | 1 | 56-59 | 5 | 9.5 | Law | Jay | 1:55 | 26,873 | ++ | |||
| 117 | 117 | Saturday, Aug 15 | boxscore | PIT | MLN | W | 10 | 8 | 57-59 | 4 | 9.5 | Kline | Burdette | Green | 2:47 | 34,478 | +++ | ||
| 118 | 118 | Sunday, Aug 16 | boxscore | PIT | MLN | W | 2 | 1 | 58-59 | 5 | 9.0 | Friend | Pizarro | Porterfield | 2:11 | 0 | ++++ | ||
| 119 | 119 | Sunday, Aug 16 | boxscore | PIT | MLN | L | 2 | 5 | 58-60 | 5 | 9.0 | Spahn | Daniels | 2:43 | 24,518 | - | |||
| 120 | 120 | Monday, Aug 17 | boxscore | PIT | CHC | W | 7 | 6 | 59-60 | 4 | 9.0 | Green | Henry | 2:31 | 12,815 | + | |||
| 121 | 121 | Wednesday, Aug 19 | boxscore | PIT | STL | W | 4 | 2 | 60-60 | 4 | 7.5 | Law | Gibson | 2:10 | 19,075 | ++ | |||
| 122 | 122 | Thursday, Aug 20 | boxscore | PIT | STL | W | 3 | 1 | 61-60 | 4 | 7.5 | Friend | Broglio | 8,059 | +++ | ||||
| 123 | 123 | Friday, Aug 21 | boxscore | PIT | LAD | L | 5 | 6 | 61-61 | 4 | 9.0 | Podres | Kline | Koufax | 2:46 | 24,678 | - | ||
| 124 | 124 | Saturday, Aug 22 | boxscore | PIT | LAD | W | 2 | 0 | 62-61 | 4 | 9.0 | Daniels | Craig | Gross | 2:35 | 10,260 | + | ||
| 125 | 125 | Sunday, Aug 23 | boxscore | PIT | LAD | W | 9 | 2 | 63-61 | 4 | 8.0 | Haddix | Drysdale | 2:27 | 0 | ++ | |||
| 126 | 126 | Sunday, Aug 23 | boxscore | PIT | LAD | W | 4 | 3 | 10 | 64-61 | 4 | 8.0 | Face | Drysdale | 3:08 | 25,173 | +++ | ||
| 127 | 127 | Monday, Aug 24 | boxscore | PIT | SFG | W | 6 | 0 | 65-61 | 4 | 7.0 | Friend | Jones | 2:47 | 23,617 | ++++ | |||
| 128 | 128 | Tuesday, Aug 25 | boxscore | PIT | SFG | L | 5 | 12 | 65-62 | 4 | 8.0 | Antonelli | Kline | 2:57 | 29,927 | - | |||
| 129 | 129 | Wednesday, Aug 26 | boxscore | PIT | SFG | W | 5 | 4 | 10 | 66-62 | 4 | 7.0 | Kline | Miller | 3:11 | 20,244 | + | ||
| 130 | 130 | Friday, Aug 28 | boxscore | PIT | PHI | W | 9 | 0 | 67-62 | 4 | 6.0 | Law | Keegan | 2:26 | 20,926 | ++ | |||
| 131 | 131 | Saturday, Aug 29 | boxscore | PIT | PHI | W | 11 | 1 | 68-62 | 4 | 5.5 | Friend | Roberts | 2:30 | 9,714 | +++ | |||
| 132 | 132 | Sunday, Aug 30 | boxscore | PIT | PHI | W | 2 | 1 | 69-62 | 4 | 4.0 | Haddix | Robinson | 2:21 | 0 | ++++ | |||
| 133 | 133 | Sunday, Aug 30 | boxscore | PIT | PHI | W | 7 | 6 | 10 | 70-62 | 4 | 4.0 | Face | Farrell | 2:42 | 20,015 | +++++ | ||
| 134 | 134 | Wednesday, Sep 2 | boxscore | PIT | @ | CIN | L | 3 | 6 | 70-63 | 4 | 5.0 | O'Toole | Law | 2:01 | 0 | - | ||
| 135 | 135 | Wednesday, Sep 2 | boxscore | PIT | @ | CIN | L | 1 | 2 | 70-64 | 4 | 5.0 | Newcombe | Friend | 2:09 | 13,014 | -- | ||
| 136 | 136 | Friday, Sep 4 | boxscore | PIT | @ | PHI | L | 0 | 3 | 70-65 | 4 | 5.5 | Owens | Haddix | 2:24 | 13,136 | --- | ||
| 137 | 137 | Saturday, Sep 5 | boxscore | PIT | @ | PHI | W | 7 | 6 | 71-65 | 4 | 5.5 | Porterfield | Farrell | Daniels | 2:44 | 5,993 | + | |
| 138 | 138 | Sunday, Sep 6 | boxscore | PIT | @ | PHI | L | 1 | 2 | 71-66 | 4 | 5.5 | Roberts | Law | 1:44 | 9,684 | - | ||
| 139 | 139 | Monday, Sep 7 | boxscore | PIT | @ | MLN | L | 1 | 5 | 71-67 | 4 | 7.0 | Burdette | Friend | 2:16 | 0 | -- | ||
| 140 | 140 | Monday, Sep 7 | boxscore | PIT | @ | MLN | L | 1 | 4 | 71-68 | 4 | 7.0 | Buhl | Daniels | 2:25 | 26,910 | --- | ||
| 141 | 141 | Wednesday, Sep 9 | boxscore | PIT | @ | SFG | L | 2 | 7 | 71-69 | 4 | 8.0 | Sanford | Haddix | Miller | 2:28 | 22,768 | ---- | |
| 142 | 142 | Thursday, Sep 10 | boxscore | PIT | @ | SFG | W | 5 | 3 | 72-69 | 4 | 7.0 | Law | Antonelli | 2:40 | 14,130 | + | ||
| 143 | 143 | Friday, Sep 11 | boxscore | PIT | @ | LAD | L | 4 | 5 | 72-70 | 4 | 7.5 | Churn | Face | 2:34 | 0 | - | ||
| 144 | 144 | Friday, Sep 11 | boxscore | PIT | @ | LAD | L | 0 | 4 | 72-71 | 4 | 7.5 | Sherry | Green | 2:30 | 48,526 | -- | ||
| 145 | 145 | Sunday, Sep 13 | boxscore | PIT | @ | LAD | W | 4 | 3 | 73-71 | 4 | 8.0 | Kline | Churn | 2:17 | 20,176 | + | ||
| 146 | 146 | Wednesday, Sep 16 | boxscore | PIT | @ | CHC | W | 3 | 2 | 74-71 | 4 | 7.5 | Law | Anderson | 2:01 | 0 | ++ | ||
| 147 | 147 | Wednesday, Sep 16 | boxscore | PIT | @ | CHC | L | 2 | 4 | 74-72 | 4 | 7.5 | Elston | Friend | 2:08 | 1,366 | - | ||
| 148 | 148 | Thursday, Sep 17 | boxscore | PIT | @ | STL | W | 7 | 0 | 75-72 | 4 | 7.5 | Haddix | Jackson | 4,970 | + | |||
| 149 | 149 | Saturday, Sep 19 | boxscore | PIT | CIN | W | 4 | 3 | 12 | 76-72 | 4 | 6.0 | Face | Lawrence | 2:30 | 8,406 | ++ | ||
| 150 | 150 | Sunday, Sep 20 | boxscore | PIT | CIN | W | 10 | 1 | 77-72 | 4 | 6.0 | Law | Brosnan | 2:12 | 21,068 | +++ | |||
| Rk | Gm# | Date | Tm | Opp | R | RA | Inn | W-L | Rank | GB | Win | Loss | Save | Time | Attendance | Streak | |||
| 151 | 151 | Monday, Sep 21 | boxscore | PIT | MLN | L | 6 | 8 | 77-73 | 4 | 6.5 | Spahn | Friend | McMahon | 2:55 | 17,205 | - | ||
| 152 | 152 | Tuesday, Sep 22 | boxscore | PIT | MLN | L | 3 | 5 | 77-74 | 4 | 7.5 | Pizarro | Haddix | McMahon | 1:58 | 17,658 | -- | ||
| 153 | 153 | Wednesday, Sep 23 | boxscore | PIT | MLN | W | 5 | 4 | 78-74 | 4 | 6.5 | Kline | Jay | Face | 2:20 | 20,502 | + | ||
| 154 | 154 | Saturday, Sep 26 | boxscore | PIT | @ | CIN | L | 6 | 7 | 78-75 | 4 | 7.0 | Purkey | Gross | 2:19 | 4,703 | - | ||
| 155 | 155 | Sunday, Sep 27 | boxscore | PIT | @ | CIN | L | 7 | 9 | 78-76 | 4 | 8.0 | Nuxhall | Green | Purkey | 2:25 | 15,522 | -- | |
| 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.