| Wednesday, February 13 |
| Former Pirate Hutch Campbell dies in New Bethlehem, PA at the age of 62. |
| Friday, April 5 |
| Former Pirate Wally Rehg dies in Burbank, CA at the age of 58. |
| Tuesday, April 16 |
| » Defeated Cardinals (0-1), 6-4 | Sportsman's Park III (1-0) | 1-0 | |
| » Starters: Fritz Ostermueller vs Johnny Beazley | First | -- |
| » Major-league debuts: Dick Sisler (Cardinals) Ralph Kiner (Pirates) |
| Wednesday, April 17 |
| » Lost to Cardinals (1-1), 6-0 | Sportsman's Park III (1-1) | 1-1 | |
| » Starters: Ken Gables vs Max Lanier | Second | 1 out |
| Thursday, April 18 |
| » Lost to Cardinals (2-1), 6-2 | Sportsman's Park III (1-2) | 1-2 | Lost 2 |
| » Starters: Ed Albosta vs Howie Pollet | Fourth | 2 out |
| Saturday, April 20 |
| » Defeated Reds (0-4), 2-1 | Forbes Field (1-0) | 2-2 | |
| » Starters: Bucky Walters vs Rip Sewell | Third | 1 out |
| Sunday, April 21 |
| » Lost to Reds (1-4), 8-2 | Forbes Field (1-1) | 2-3 | |
| » Starters: Ed Heusser vs Jim Hopper | Fourth | 2½ out |
| » Lost to Reds (2-4), 4-3 | Forbes Field (1-2) | 2-4 | Lost 2 |
| » Starters: Joe Beggs vs Jack Hallett | Fourth | 2½ out |
| Tuesday, April 23 |
| » Lost to Cubs (4-2), 3-1 | Forbes Field (1-3) | 2-5 | Lost 3 |
| » Starters: Claude Passeau vs Ed Albosta | Fourth | 4 out |
| Wednesday, April 24 |
| » Defeated Cubs (4-3), 4-3 | Forbes Field (2-3) | 3-5 | |
| » Starters: Hi Bithorn vs Rip Sewell | Fourth | 4 out |
| Thursday, April 25 |
| » Defeated Cardinals (7-2), 5-3 | Forbes Field (3-3) | 4-5 | Won 2 |
| » Starters: Harry Brecheen vs Ken Heintzelman | Fifth | 3½ out |
| Friday, April 26 |
| » Lost to Cardinals (8-2), 3-2 | Forbes Field (3-4) | 4-6 | |
| » Starters: Fred Martin vs Fritz Ostermueller | Fifth | 4½ out |
| Saturday, April 27 |
| » Lost to Reds (4-7), 5-2 | Crosley Field (0-1) | 4-7 | Lost 2 |
| » Starters: Nick Strincevich vs Joe Beggs | Fifth | 5 out |
| Sunday, April 28 |
| » Lost to Reds (5-7), 7-1 | Crosley Field (0-2) | 4-8 | Lost 3 |
| » Starters: Rip Sewell vs Ed Heusser | Sixth | 4½ out |
| Tuesday, April 30 |
| » Defeated Phillies (2-9), 4-1 | Forbes Field (4-4) | 5-8 | |
| » Starters: Tommy Hughes vs Ken Gables | Sixth | 4 out |
| Wednesday, May 1 |
| » Lost to Phillies (3-9), 8-0 | Forbes Field (4-5) | 5-9 | |
| » Starters: Ike Pearson vs Ed Albosta | Fifth | 4½ out |
| » Major-league debuts: Ed Bahr (Pirates) |
| Thursday, May 2 |
| » Defeated Phillies (3-10), 8-3 | Forbes Field (5-5) | 6-9 | |
| » Starters: Oscar Judd vs Fritz Ostermueller | Seventh | 4½ out |
| Friday, May 3 |
| » Defeated Braves (7-5), 3-2 | Forbes Field (6-5) | 7-9 | Won 2 |
| » Starters: Johnny Sain vs Ken Heintzelman | Fifth | 4 out |
| Sunday, May 5 |
| » Defeated Dodgers (10-5), 5-4 | Forbes Field (7-5) | 8-9 | Won 3 |
| » Starters: Vic Lombardi vs Rip Sewell | Third | 2 out |
| » Defeated Dodgers (10-6), 4-3 | Forbes Field (8-5) | 9-9 | Won 4 |
| » Starters: Hal Gregg vs Ken Gables | Third | 2 out |
| Wednesday, May 8 |
| » Lost to Giants (9-10), 1-0 | Forbes Field (8-6) | 9-10 | |
| » Starters: Dave Koslo vs Fritz Ostermueller | Fifth | 3½ out |
| Thursday, May 9 |
| » Lost to Giants (10-10), 6-1 | Forbes Field (8-7) | 9-11 | Lost 2 |
| » Starters: Bill Voiselle vs Preacher Roe | Sixth | 4 out |
| Sunday, May 12 |
| » Lost to Cubs (11-10), 3-1 | Wrigley Field (0-1) | 9-12 | Lost 3 |
| » Starters: Ken Heintzelman vs Claude Passeau | Fifth | 5 out |
| Tuesday, May 14 |
| » Lost to Braves (13-10), 5-1 | Braves Field (0-1) | 9-13 | Lost 4 |
| » Starters: Ken Gables vs Lefty Wallace | Sixth | 5½ out |
| Friday, May 17 |
| » Lost to Dodgers (16-9), 16-6 | Ebbets Field (0-1) | 9-14 | Lost 5 |
| » Starters: Preacher Roe vs Ralph Branca | Seventh | 6 out |
| Sunday, May 19 |
| » Defeated Giants (11-16), 3-1 | Polo Grounds V (1-0) | 10-14 | |
| » Starters: Fritz Ostermueller vs Monte Kennedy | Seventh | 6½ out |
| » Lost to Giants (12-16), 5-1 | Polo Grounds V (1-1) | 10-15 | |
| » Starters: Ken Heintzelman vs Dave Koslo | Seventh | 6½ out |
| Wednesday, May 22 |
| » Lost to Phillies (8-19), 6-2 | Shibe Park (0-1) | 10-16 | Lost 2 |
| » Starters: Jack Hallett vs Schoolboy Rowe | Sixth | 7 out |
| Thursday, May 23 |
| » Defeated Phillies (8-20), 10-2 | Shibe Park (1-1) | 11-16 | |
| » Starters: Ed Bahr vs Tommy Hughes | Fifth | 7 out |
| Friday, May 24 |
| » Defeated Cubs (15-14), 6-3 | Forbes Field (9-7) | 12-16 | Won 2 |
| » Starters: Hank Borowy vs Preacher Roe | Sixth | 7 out |
| Sunday, May 26 |
| » Defeated Cubs (15-15), 8-2 | Forbes Field (10-7) | 13-16 | Won 3 |
| » Starters: Hi Bithorn vs Ken Heintzelman | Seventh | 8 out |
| Tuesday, May 28 |
| » Defeated Reds (15-15), 6-3 | Forbes Field (11-7) | 14-16 | Won 4 |
| » Starters: Ed Heusser vs Ed Bahr | Seventh | 7 out |
| Wednesday, May 29 |
| » Lost to Reds (16-15), 7-6 | Forbes Field (11-8) | 14-17 | |
| » Starters: Bucky Walters vs Al Gerheauser | Seventh | 8 out |
| Thursday, May 30 |
| » Defeated Cardinals (22-14), 9-3 | Forbes Field (12-8) | 15-17 | |
| » Starters: Ken Burkhart vs Fritz Ostermueller | Sixth | 8 out |
| » Lost to Cardinals (23-14), 12-11 | Forbes Field (12-9) | 15-18 | |
| » Starters: Red Barrett vs Preacher Roe | Sixth | 8 out |
| Sunday, June 2 |
| » Defeated Phillies (11-25), 5-1 | Forbes Field (13-9) | 16-18 | |
| » Starters: Tommy Hughes vs Rip Sewell | Seventh | 8½ out |
| » Lost to Phillies (12-25), 10-3 | Forbes Field (13-10) | 16-19 | |
| » Starters: Al Jurisich vs Ed Bahr | Seventh | 8½ out |
| Monday, June 3 |
| » Lost to Phillies (13-25), 8-4 | Forbes Field (13-11) | 16-20 | Lost 2 |
| » Starters: Charley Schanz vs Ed Albosta | Seventh | 9 out |
| Tuesday, June 4 |
| » Defeated Dodgers (27-14), 4-3 | Forbes Field (14-11) | 17-20 | |
| » Starters: Vic Lombardi vs Fritz Ostermueller | Seventh | 9 out |
| » Lost to Dodgers (28-14), 7-6 | Forbes Field (14-12) | 17-21 | |
| » Starters: Joe Hatten vs Ken Heintzelman | Seventh | 9 out |
| Wednesday, June 5 |
| » Lost to Dodgers (29-14), 5-3 | Forbes Field (14-13) | 17-22 | Lost 2 |
| » Starters: Kirby Higbe vs Preacher Roe | Seventh | 10 out |
| Thursday, June 6 |
| » Lost to Dodgers (30-14), 13-8 | Forbes Field (14-14) | 17-23 | Lost 3 |
| » Starters: Ralph Branca vs Rip Sewell | Seventh | 11 out |
| Friday, June 7 |
| » Defeated Giants (20-25), 10-5 | Forbes Field (15-14) | 18-23 | |
| » Starters: Bill Voiselle vs Ed Bahr | Seventh | 10 out |
| Saturday, June 8 |
| » Lost to Giants (21-25), 5-3 | Forbes Field (15-15) | 18-24 | |
| » Starters: Dave Koslo vs Nick Strincevich | Seventh | 10 out |
| Sunday, June 9 |
| » Defeated Giants (21-26), 2-1 | Forbes Field (16-15) | 19-24 | |
| » Starters: Monte Kennedy vs Fritz Ostermueller | Sixth | 8½ out |
| » Defeated Giants (21-27), 5-1 | Forbes Field (17-15) | 20-24 | Won 2 |
| » Starters: Bob Joyce vs Ken Heintzelman | Sixth | 8½ out |
| Monday, June 10 |
| » Lost to Braves (22-25), 10-5 | Forbes Field (17-16) | 20-25 | |
| » Starters: Ed Wright vs Preacher Roe | Sixth | 8½ out |
| Tuesday, June 11 |
| » Defeated Braves (22-26), 5-3 | Forbes Field (18-16) | 21-25 | |
| » Starters: Mort Cooper vs Rip Sewell | Sixth | 7½ out |
| Saturday, June 15 |
| » Lost to Phillies (19-28), 3-1 | Shibe Park (1-2) | 21-26 | |
| » Starters: Nick Strincevich vs Schoolboy Rowe | Sixth | 8½ out |
| Sunday, June 16 |
| » Lost to Phillies (20-28), 4-3 | Shibe Park (1-3) | 21-27 | Lost 2 |
| » Starters: Rip Sewell vs Ken Raffensberger | Sixth | 9 out |
| » Defeated Phillies (20-29), 10-1 | Shibe Park (2-3) | 22-27 | |
| » Starters: Fritz Ostermueller vs Charley Stanceu | Sixth | 9 out |
| Monday, June 17 |
| » Lost to Phillies (21-29), 7-3 | Shibe Park (2-4) | 22-28 | |
| » Starters: Ken Gables vs Charley Schanz | Sixth | 9½ out |
| Tuesday, June 18 |
| » Defeated Dodgers (33-21), 6-3 | Ebbets Field (1-1) | 23-28 | |
| » Starters: Ken Heintzelman vs Rex Barney | Sixth | 8½ out |
| Wednesday, June 19 |
| » Lost to Dodgers (34-21), 7-0 | Ebbets Field (1-2) | 23-29 | |
| » Starters: Preacher Roe vs Joe Hatten | Sixth | 9½ out |
| Thursday, June 20 |
| » Lost to Dodgers (35-21), 7-3 | Ebbets Field (1-3) | 23-30 | Lost 2 |
| » Starters: Nick Strincevich vs Kirby Higbe | Sixth | 10½ out |
| Friday, June 21 |
| » Lost to Braves (26-31), 3-2 | Braves Field (0-2) | 23-31 | Lost 3 |
| » Starters: Fritz Ostermueller vs Mort Cooper | Sixth | 11½ out |
| Saturday, June 22 |
| » Lost to Braves (27-31), 4-3 | Braves Field (0-3) | 23-32 | Lost 4 |
| » Starters: Rip Sewell vs Si Johnson | Seventh | 11½ out |
| Sunday, June 23 |
| » Lost to Braves (28-31), 4-3 | Braves Field (0-4) | 23-33 | Lost 5 |
| » Starters: Ken Heintzelman vs Bill Lee | Eighth | 13 out |
| » Lost to Braves (29-31), 4-0 | Braves Field (0-5) | 23-34 | Lost 6 |
| » Starters: Preacher Roe vs Johnny Sain | Eighth | 13 out |
| Tuesday, June 25 |
| » Defeated Giants (25-37), 3-0 | Polo Grounds V (2-1) | 24-34 | |
| » Starters: Nick Strincevich vs Hal Schumacher | Seventh | 12½ out |
| Wednesday, June 26 |
| » Lost to Giants (26-37), 4-0 | Polo Grounds V (2-2) | 24-35 | |
| » Starters: Ed Bahr vs Dave Koslo | Eighth | 13½ out |
| Thursday, June 27 |
| » Lost to Cubs (33-26), 6-5 | Forbes Field (18-17) | 24-36 | Lost 2 |
| » Starters: Johnny Schmitz vs Ken Heintzelman | Eighth | 14½ out |
| Friday, June 28 |
| » Lost to Cardinals (37-26), 5-1 | Forbes Field (18-18) | 24-37 | Lost 3 |
| » Starters: Howie Pollet vs Preacher Roe | Eighth | 15½ out |
| Sunday, June 30 |
| » Defeated Cardinals (37-27), 4-3 | Forbes Field (19-18) | 25-37 | |
| » Starters: Al Brazle vs Fritz Ostermueller | Eighth | 15½ out |
| » Defeated Cardinals (37-28), 1-0 | Forbes Field (20-18) | 26-37 | Won 2 |
| » Starters: Harry Brecheen vs Nick Strincevich | Eighth | 15½ out |
| Monday, July 1 |
| » Defeated Cubs (34-29), 1-0 | Wrigley Field (1-1) | 27-37 | Won 3 |
| » Starters: Rip Sewell vs Hank Wyse | Seventh | 15½ out |
| Tuesday, July 2 |
| » Defeated Cubs (34-30), 9-0 | Wrigley Field (2-1) | 28-37 | Won 4 |
| » Starters: Ken Heintzelman vs Bob Chipman | Seventh | 15½ out |
| Wednesday, July 3 |
| » Lost to Cubs (35-30), 4-3 | Wrigley Field (2-2) | 28-38 | |
| » Starters: Al Gerheauser vs Hank Borowy | Seventh | 16½ out |
| » Lost to Cubs (36-30), 2-1 | Wrigley Field (2-3) | 28-39 | Lost 2 |
| » Starters: Preacher Roe vs Paul Erickson | Seventh | 16½ out |
| Thursday, July 4 |
| » Defeated Reds (31-34), 6-1 | Crosley Field (1-2) | 29-39 | |
| » Starters: Nick Strincevich vs Ed Heusser | Seventh | 16½ out |
| » Lost to Reds (32-34), 4-3 | Crosley Field (1-3) | 29-40 | |
| » Starters: Johnny Lanning vs Ewell Blackwell | Seventh | 16½ out |
| Friday, July 5 |
| » Lost to Reds (33-34), 4-3 | Crosley Field (1-4) | 29-41 | Lost 2 |
| » Starters: Rip Sewell vs Bucky Walters | Eighth | 16½ out |
| Saturday, July 6 |
| » Lost to Cardinals (41-31), 12-4 | Sportsman's Park III (1-3) | 29-42 | Lost 3 |
| » Starters: Ken Gables vs Murry Dickson | Eighth | 17½ out |
| Sunday, July 7 |
| » Lost to Cardinals (42-31), 4-3 | Sportsman's Park III (1-4) | 29-43 | Lost 4 |
| » Starters: Fritz Ostermueller vs Ken Burkhart | Eighth | 18½ out |
| » Lost to Cardinals (43-31), 6-0 | Sportsman's Park III (1-5) | 29-44 | Lost 5 |
| » Starters: Ken Heintzelman vs Howie Pollet | Eighth | 18½ out |
| Thursday, July 11 |
| » Lost to Phillies (31-39), 4-1 | Forbes Field (20-19) | 29-45 | Lost 6 |
| » Starters: Schoolboy Rowe vs Nick Strincevich | Seventh | 18½ out |
| Friday, July 12 |
| » Defeated Phillies (31-40), 4-3 | Forbes Field (21-19) | 30-45 | |
| » Starters: Oscar Judd vs Ed Bahr | Eighth | 17½ out |
| Saturday, July 13 |
| » Defeated Phillies (31-41), 8-1 | Forbes Field (22-19) | 31-45 | Won 2 |
| » Starters: Charley Schanz vs Johnny Lanning | Eighth | 17½ out |
| Sunday, July 14 |
| » Lost to Braves (38-41), 4-1 | Forbes Field (22-20) | 31-46 | |
| » Starters: Warren Spahn vs Fritz Ostermueller | Eighth | 16½ out |
| » Defeated Braves (38-42), 5-2 | Forbes Field (23-20) | 32-46 | |
| » Starters: Ed Wright vs Rip Sewell | Eighth | 16½ out |
| Monday, July 15 |
| » Lost to Braves (39-42), 3-2 | Forbes Field (23-21) | 32-47 | |
| » Starters: Johnny Niggeling vs Ken Heintzelman | Eighth | 16½ out |
| Tuesday, July 16 |
| » Lost to Braves (40-42), 10-0 | Forbes Field (23-22) | 32-48 | Lost 2 |
| » Starters: Mort Cooper vs Ed Albosta | Eighth | 16½ out |
| Wednesday, July 17 |
| » Defeated Giants (36-46), 8-5 | Forbes Field (24-22) | 33-48 | |
| » Starters: Ken Trinkle vs Nick Strincevich | Eighth | 15½ out |
| Thursday, July 18 |
| » Defeated Giants (36-47), 7-3 | Forbes Field (25-22) | 34-48 | Won 2 |
| » Starters: Dave Koslo vs Ed Bahr | Eighth | 15 out |
| Saturday, July 20 |
| » Lost to Dodgers (51-34), 4-1 | Forbes Field (25-23) | 34-49 | |
| » Starters: Joe Hatten vs Ken Heintzelman | Seventh | 16 out |
| Sunday, July 21 |
| » Lost to Dodgers (52-34), 3-0 | Forbes Field (25-24) | 34-50 | Lost 2 |
| » Starters: Vic Lombardi vs Fritz Ostermueller | Seventh | 18 out |
| » Lost to Dodgers (53-34), 6-5 | Forbes Field (25-25) | 34-51 | Lost 3 |
| » Starters: Hank Behrman vs Rip Sewell | Seventh | 18 out |
| Wednesday, July 24 |
| » Lost to Phillies (36-47), 2-0 | Shibe Park (2-5) | 34-52 | Lost 4 |
| » Starters: Nick Strincevich vs Schoolboy Rowe | Eighth | 19 out |
| Thursday, July 25 |
| » Defeated Phillies (36-48), 2-1 | Shibe Park (3-5) | 35-52 | |
| » Starters: Johnny Lanning vs Oscar Judd | Eighth | 19½ out |
| » Lost to Phillies (37-48), 9-2 | Shibe Park (3-6) | 35-53 | |
| » Starters: Rip Sewell vs Blix Donnelly | Eighth | 19½ out |
| Friday, July 26 |
| » Defeated Dodgers (55-35), 5-0 | Ebbets Field (2-3) | 36-53 | |
| » Starters: Fritz Ostermueller vs Vic Lombardi | Eighth | 18½ out |
| Saturday, July 27 |
| » Lost to Dodgers (56-35), 4-3 | Ebbets Field (2-4) | 36-54 | |
| » Starters: Ken Heintzelman vs Hank Behrman | Eighth | 20½ out |
| » Lost to Dodgers (57-35), 4-3 | Ebbets Field (2-5) | 36-55 | Lost 2 |
| » Starters: Ed Albosta vs Kirby Higbe | Eighth | 20½ out |
| Sunday, July 28 |
| » Defeated Dodgers (57-36), 7-3 | Ebbets Field (3-5) | 37-55 | |
| » Starters: Nick Strincevich vs Rex Barney | Eighth | 19½ out |
| Wednesday, July 31 |
| » Lost to Braves (45-49), 2-1 | Braves Field (0-6) | 37-56 | |
| » Starters: Johnny Lanning vs Johnny Sain | Eighth | 20½ out |
| Friday, August 2 |
| » Defeated Giants (43-55), 6-0 | Polo Grounds V (3-2) | 38-56 | |
| » Starters: Fritz Ostermueller vs Dave Koslo | Eighth | 20½ out |
| » Lost to Giants (44-55), 3-2 | Polo Grounds V (3-3) | 38-57 | |
| » Starters: Ken Heintzelman vs Ken Trinkle | Eighth | 20½ out |
| Sunday, August 4 |
| » Lost to Giants (45-55), 4-0 | Polo Grounds V (3-4) | 38-58 | Lost 2 |
| » Starters: Nick Strincevich vs Mike Budnick | Eighth | 21½ out |
| » Lost to Giants (46-55), 10-1 | Polo Grounds V (3-5) | 38-59 | Lost 3 |
| » Starters: Johnny Lanning vs Monte Kennedy | Eighth | 21½ out |
| Wednesday, August 7 |
| » Lost to Cardinals (60-41), 8-1 | Forbes Field (25-26) | 38-60 | Lost 4 |
| » Starters: Harry Brecheen vs Fritz Ostermueller | Eighth | 22 out |
| Friday, August 9 |
| » Lost to Cubs (55-46), 9-3 | Forbes Field (25-27) | 38-61 | Lost 5 |
| » Starters: Paul Erickson vs Ken Heintzelman | Eighth | 23½ out |
| Saturday, August 10 |
| » Defeated Cubs (55-47), 3-2 | Forbes Field (26-27) | 39-61 | |
| » Starters: Johnny Schmitz vs Nick Strincevich | Eighth | 23½ out |
| Sunday, August 11 |
| » Defeated Cubs (55-48), 10-9 | Forbes Field (27-27) | 40-61 | Won 2 |
| » Starters: Hank Wyse vs Rip Sewell | Eighth | 22 out |
| » Tied Cubs, 4-4 | Forbes Field (27-27) | 40-61 | |
| » Starters: Bob Chipman vs Fritz Ostermueller | Eighth | 22 out |
| Monday, August 12 |
| » Defeated Reds (48-56), 3-2 | Forbes Field (28-27) | 41-61 | Won 3 |
| » Starters: Ed Heusser vs Ed Bahr | Eighth | 22 out |
| Tuesday, August 13 |
| » Defeated Reds (48-57), 3-2 | Forbes Field (29-27) | 42-61 | Won 4 |
| » Starters: Harry Gumbert vs Johnny Lanning | Eighth | 21½ out |
| Wednesday, August 14 |
| » Defeated Reds (48-58), 3-2 | Forbes Field (30-27) | 43-61 | Won 5 |
| » Starters: Bob Malloy vs Nick Strincevich | Eighth | 22 out |
| Friday, August 16 |
| » Defeated Cardinals (65-43), 3-0 | Sportsman's Park III (2-5) | 44-61 | Won 6 |
| » Starters: Ken Heintzelman vs Murry Dickson | Eighth | 21½ out |
| Saturday, August 17 |
| » Lost to Cubs (58-52), 2-1 | Wrigley Field (2-4) | 44-62 | |
| » Starters: Ed Bahr vs Johnny Schmitz | Eighth | 22 out |
| Sunday, August 18 |
| » Lost to Cubs (59-52), 8-0 | Wrigley Field (2-5) | 44-63 | Lost 2 |
| » Starters: Jack Hallett vs Paul Erickson | Eighth | 23 out |
| Tuesday, August 20 |
| » Defeated Dodgers (70-44), 10-0 | Forbes Field (31-27) | 45-63 | |
| » Starters: Vic Lombardi vs Nick Strincevich | Eighth | 22 out |
| Wednesday, August 21 |
| » Lost to Dodgers (71-44), 8-2 | Forbes Field (31-28) | 45-64 | |
| » Starters: Joe Hatten vs Ken Heintzelman | Eighth | 23 out |
| Thursday, August 22 |
| » Lost to Giants (51-64), 1-0 | Forbes Field (31-29) | 45-65 | Lost 2 |
| » Starters: Monte Kennedy vs Rip Sewell | Seventh | 23 out |
| Friday, August 23 |
| » Defeated Giants (51-65), 7-3 | Forbes Field (32-29) | 46-65 | |
| » Starters: Ken Trinkle vs Ed Bahr | Seventh | 23 out |
| Saturday, August 24 |
| » Lost to Giants (52-65), 8-1 | Forbes Field (32-30) | 46-66 | |
| » Starters: Bill Voiselle vs Johnny Lanning | Seventh | 24 out |
| Sunday, August 25 |
| » Lost to Braves (58-57), 7-5 | Forbes Field (32-31) | 46-67 | Lost 2 |
| » Starters: Ed Wright vs Fritz Ostermueller | Seventh | 25 out |
| » Lost to Braves (59-57), 10-5 | Forbes Field (32-32) | 46-68 | Lost 3 |
| » Starters: Si Johnson vs Nick Strincevich | Seventh | 25 out |
| Monday, August 26 |
| » Defeated Braves (59-58), 3-2 | Forbes Field (33-32) | 47-68 | |
| » Starters: Johnny Niggeling vs Ken Heintzelman | Eighth | 25 out |
| Tuesday, August 27 |
| » Lost to Braves (60-58), 9-1 | Forbes Field (33-33) | 47-69 | |
| » Starters: Warren Spahn vs Fritz Ostermueller | Seventh | 25 out |
| Wednesday, August 28 |
| » Lost to Phillies (51-69), 4-1 | Forbes Field (33-34) | 47-70 | Lost 2 |
| » Starters: Oscar Judd vs Rip Sewell | Eighth | 26½ out |
| Thursday, August 29 |
| » Lost to Phillies (52-69), 5-2 | Forbes Field (33-35) | 47-71 | Lost 3 |
| » Starters: Ken Raffensberger vs Ed Bahr | Eighth | 27½ out |
| Saturday, August 31 |
| » Defeated Cardinals (78-48), 6-1 | Forbes Field (34-35) | 48-71 | |
| » Starters: Murry Dickson vs Nick Strincevich | Eighth | 26½ out |
| Sunday, September 1 |
| » Lost to Cardinals (79-48), 7-6 | Forbes Field (34-36) | 48-72 | |
| » Starters: Red Munger vs Ken Heintzelman | Eighth | 26½ out |
| » Defeated Cardinals (79-49), 2-1 | Forbes Field (35-36) | 49-72 | |
| » Starters: Harry Brecheen vs Fritz Ostermueller | Eighth | 26½ out |
| Monday, September 2 |
| » Defeated Cubs (70-56), 4-1 | Forbes Field (36-36) | 50-72 | Won 2 |
| » Starters: Paul Erickson vs Ed Bahr | Eighth | 27½ out |
| » Lost to Cubs (71-56), 7-3 | Forbes Field (36-37) | 50-73 | |
| » Starters: Russ Bauers vs Rip Sewell | Eighth | 27½ out |
| Tuesday, September 3 |
| » Lost to Cubs (72-56), 2-0 | Forbes Field (36-38) | 50-74 | Lost 2 |
| » Starters: Bob Chipman vs Jack Hallett | Eighth | 28 out |
| Wednesday, September 4 |
| » Lost to Reds (57-73), 6-0 | Crosley Field (1-5) | 50-75 | Lost 3 |
| » Starters: Nick Strincevich vs Bucky Walters | Eighth | 29 out |
| Thursday, September 5 |
| » Defeated Reds (57-74), 2-1 | Crosley Field (2-5) | 51-75 | |
| » Starters: Johnny Lanning vs Johnny Vander Meer | Eighth | 29 out |
| Friday, September 6 |
| » Lost to Cardinals (84-49), 7-6 | Sportsman's Park III (2-6) | 51-76 | |
| » Starters: Ken Heintzelman vs Johnny Beazley | Eighth | 30 out |
| Saturday, September 7 |
| » Defeated Cardinals (84-50), 9-2 | Sportsman's Park III (3-6) | 52-76 | |
| » Starters: Fritz Ostermueller vs Howie Pollet | Eighth | 29 out |
| Sunday, September 8 |
| » Lost to Cardinals (85-50), 5-4 | Sportsman's Park III (3-7) | 52-77 | |
| » Starters: Jack Hallett vs Red Munger | Eighth | 31 out |
| » Lost to Cardinals (86-50), 12-2 | Sportsman's Park III (3-8) | 52-78 | Lost 2 |
| » Starters: Nick Strincevich vs Al Brazle | Eighth | 31 out |
| Monday, September 9 |
| » Major-league debuts: Sheldon Jones (Giants) |
| Tuesday, September 10 |
| » Defeated Giants (56-81), 7-4 | Polo Grounds V (4-5) | 53-78 | |
| » Starters: Rip Sewell vs Ken Trinkle | Eighth | 31 out |
| » Major-league debuts: Marv Grissom (Giants) |
| Wednesday, September 11 |
| » Defeated Giants (56-82), 7-6 | Polo Grounds V (5-5) | 54-78 | Won 2 |
| » Starters: Ken Heintzelman vs Dave Koslo | Seventh | 29½ out |
| » Defeated Giants (56-83), 7-5 | Polo Grounds V (6-5) | 55-78 | Won 3 |
| » Starters: Ken Gables vs Bill Voiselle | Seventh | 29½ out |
| Thursday, September 12 |
| » Defeated Braves (70-65), 1-0 | Braves Field (1-6) | 56-78 | Won 4 |
| » Starters: Jack Hallett vs Si Johnson | Seventh | 30 out |
| » Lost to Braves (71-65), 2-1 | Braves Field (1-7) | 56-79 | |
| » Starters: Nick Strincevich vs Ed Wright | Seventh | 30 out |
| Friday, September 13 |
| » Defeated Braves (71-66), 4-2 | Braves Field (2-7) | 57-79 | |
| » Starters: Fritz Ostermueller vs Mort Cooper | Seventh | 28½ out |
| » Defeated Braves (71-67), 10-1 | Braves Field (3-7) | 58-79 | Won 2 |
| » Starters: Ed Bahr vs Bill Lee | Seventh | 28½ out |
| Saturday, September 14 |
| » Lost to Braves (72-67), 9-3 | Braves Field (3-8) | 58-80 | |
| » Starters: Al Gerheauser vs Johnny Sain | Seventh | 28½ out |
| » Major-league debuts: Junior Walsh (Pirates) |
| Sunday, September 15 |
| » Lost to Phillies (63-80), 6-5 | Shibe Park (3-7) | 58-81 | Lost 2 |
| » Starters: Johnny Lanning vs Blix Donnelly | Seventh | 30 out |
| Monday, September 16 |
| » Lost to Phillies (64-80), 2-0 | Shibe Park (3-8) | 58-82 | Lost 3 |
| » Starters: Jack Hallett vs Ken Raffensberger | Seventh | 30½ out |
| Wednesday, September 18 |
| » Defeated Dodgers (88-55), 3-2 | Ebbets Field (4-5) | 59-82 | |
| » Starters: Fritz Ostermueller vs Kirby Higbe | Seventh | 30½ out |
| » Lost to Dodgers (89-55), 3-0 | Ebbets Field (4-6) | 59-83 | |
| » Starters: Ken Heintzelman vs Ralph Branca | Seventh | 30½ out |
| Thursday, September 19 |
| » Lost to Dodgers (90-55), 7-0 | Ebbets Field (4-7) | 59-84 | Lost 2 |
| » Starters: Nick Strincevich vs Hal Gregg | Seventh | 31½ out |
| Saturday, September 21 |
| » Defeated Reds (61-85), 2-1 | Forbes Field (37-38) | 60-84 | |
| » Starters: Johnny Hetki vs Jack Hallett | Seventh | 31½ out |
| Sunday, September 22 |
| » Lost to Reds (62-85), 4-2 | Forbes Field (37-39) | 60-85 | |
| » Starters: Joe Beggs vs Lee Howard | Seventh | 32 out |
| » Lost to Reds (63-85), 6-5 | Forbes Field (37-40) | 60-86 | Lost 2 |
| » Starters: Ewell Blackwell vs Junior Walsh | Seventh | 32 out |
| Tuesday, September 24 |
| » Lost to Cubs (79-68), 13-3 | Wrigley Field (2-6) | 60-87 | Lost 3 |
| » Starters: Fritz Ostermueller vs Paul Erickson | Seventh | 33 out |
| » Defeated Cubs (79-69), 13-0 | Wrigley Field (3-6) | 61-87 | |
| » Starters: Rip Sewell vs Doyle Lade | Seventh | 33 out |
| Wednesday, September 25 |
| » Defeated Cubs (79-70), 6-5 | Wrigley Field (4-6) | 62-87 | Won 2 |
| » Starters: Nick Strincevich vs Russ Meyer | Sixth | 32 out |
| Thursday, September 26 |
| » Lost to Cubs (80-70), 5-3 | Wrigley Field (4-7) | 62-88 | |
| » Starters: Jack Hallett vs Emil Kush | Seventh | 32½ out |
| Friday, September 27 |
| » Lost to Reds (65-86), 8-0 | Crosley Field (2-6) | 62-89 | Lost 2 |
| » Starters: Ed Bahr vs Joe Beggs | Sixth | 32½ out |
| Saturday, September 28 |
| » Defeated Reds (65-87), 10-3 | Crosley Field (3-6) | 63-89 | |
| » Manager: Spud Davis |
| » Starters: Junior Walsh vs Ewell Blackwell | Sixth | 32½ out |
| Sunday, September 29 |
| » Lost to Reds (66-87), 1-0 | Crosley Field (3-7) | 63-90 | |
| » Starters: Lee Howard vs Johnny Vander Meer | Sixth | 33 out |
| » Lost to Reds (67-87), 3-2 | Crosley Field (3-8) | 63-91 | Lost 2 |
| » Starters: Al Tate vs Al Libke | Sixth | 33 out |
| Wednesday, October 2 |
| Future Pirate Bob Robertson is born in Frostburg, MD. |
| Sunday, October 6 |
| Future Pirate Gene Clines is born in San Pablo, CA. |
| Thursday, October 10 |
| Future Pirate Gene Tenace is born in Russellton, PA. |
| Monday, October 14 |
| Future Pirate Al Oliver is born in Portsmouth, OH. |
| Sunday, December 15 |
| Future Pirate Art Howe is born in Pittsburgh, PA. |
| Saturday, December 21 |
| Former Pirate Bill Evans dies in Burlington, NC at the age of 53. |
Game information provided by Retrosheet (www.retrosheet.org) |
