| Monday, February 8 |
| Future Pirate Bob Oliver is born in Shreveport, LA. |
| Wednesday, April 21 |
| » Defeated Cubs (0-1), 6-0 | Wrigley Field (1-0) | 1-0 | |
| » Starters: Rip Sewell vs Paul Derringer | First | -- |
| Thursday, April 22 |
| » Lost to Cubs (1-1), 4-3 | Wrigley Field (1-1) | 1-1 | |
| » Starters: Hank Gornicki vs Claude Passeau | Fourth | 1 out |
| » Major-league debuts: Xavier Rescigno (Pirates) |
| Former Pirate Kirby White dies in Hillsboro, OH at the age of 60. |
| Friday, April 23 |
| » Major-league debuts: Tom McBride and Roy Partee (Red Sox) |
| Saturday, April 24 |
| » Lost to Cubs (2-1), 6-3 | Wrigley Field (1-2) | 1-2 | Lost 2 |
| » Starters: Johnny Lanning vs Bill Lee | Fourth | 1½ out |
| » Major-league debuts: Tommy O'Brien (Pirates) |
| Sunday, April 25 |
| » Defeated Cubs (2-2), 6-2 | Wrigley Field (2-2) | 2-2 | |
| » Starters: Rip Sewell vs Lon Warneke | Third | ½ out |
| Future Pirate Bob Johnson is born in Aurora, IL. |
| Tuesday, April 27 |
| » Defeated Reds (2-3), 4-1 | Forbes Field (1-0) | 3-2 | Won 2 |
| » Starters: Ray Starr vs Bob Klinger | Second | ½ out |
| Wednesday, April 28 |
| » Lost to Reds (3-3), 3-1 | Forbes Field (1-1) | 3-3 | |
| » Starters: Elmer Riddle vs Wally Hebert | Third | 1½ out |
| Thursday, April 29 |
| » Lost to Reds (4-3), 6-1 | Forbes Field (1-2) | 3-4 | Lost 2 |
| » Starters: Johnny Vander Meer vs Hank Gornicki | Fourth | 2½ out |
| Saturday, May 1 |
| » Defeated Cubs (3-5), 6-3 | Forbes Field (2-2) | 4-4 | |
| » Starters: Claude Passeau vs Rip Sewell | Fourth | 3 out |
| Sunday, May 2 |
| » Defeated Cubs (3-6), 3-0 | Forbes Field (3-2) | 5-4 | Won 2 |
| » Starters: Hi Bithorn vs Wally Hebert | Second | 2 out |
| » Defeated Cubs (3-7), 1-0 | Forbes Field (4-2) | 6-4 | Won 3 |
| » Starters: Dick Barrett vs Bob Klinger | Second | 2 out |
| Monday, May 3 |
| » Lost to Reds (6-5), 7-5 | Crosley Field (0-1) | 6-5 | |
| » Starters: Max Butcher vs Johnny Vander Meer | Fourth | 3 out |
| Tuesday, May 4 |
| » Defeated Reds (6-6), 8-3 | Crosley Field (1-1) | 7-5 | |
| » Starters: Xavier Rescigno vs Ray Starr | Fourth | 2 out |
| Wednesday, May 5 |
| » Lost to Reds (7-6), 3-2 | Crosley Field (1-2) | 7-6 | |
| » Starters: Johnny Lanning vs Bucky Walters | Third | 3 out |
| Sunday, May 9 |
| » Lost to Cardinals (8-6), 8-1 | Forbes Field (4-3) | 7-7 | Lost 2 |
| » Starters: Mort Cooper vs Wally Hebert | Fourth | 3 out |
| » Tied Cardinals, 3-3 | Forbes Field (4-3) | 7-7 | |
| » Starters: Howie Pollet vs Bob Klinger | Fourth | 3 out |
| Thursday, May 13 |
| » Lost to Dodgers (13-6), 5-4 | Ebbets Field (0-1) | 7-8 | Lost 3 |
| » Starters: Rip Sewell vs Bobo Newsom | Fifth | 4 out |
| » Major-league debuts: Hal Peck (Dodgers) |
| Friday, May 14 |
| » Defeated Dodgers (13-7), 5-2 | Ebbets Field (1-1) | 8-8 | |
| » Starters: Hank Gornicki vs Freddie Fitzsimmons | Fourth | 3 out |
| Saturday, May 15 |
| » Lost to Giants (9-11), 2-1 | Polo Grounds V (0-1) | 8-9 | |
| » Starters: Xavier Rescigno vs Cliff Melton | Fifth | 4 out |
| Sunday, May 16 |
| » Lost to Giants (10-11), 3-1 | Polo Grounds V (0-2) | 8-10 | Lost 2 |
| » Starters: Max Butcher vs Johnnie Wittig | Third | 5 out |
| » Defeated Giants (10-12), 2-1 | Polo Grounds V (1-2) | 9-10 | |
| » Starters: Bob Klinger vs Ken Trinkle | Third | 5 out |
| Tuesday, May 18 |
| » Lost to Braves (12-8), 4-0 | Braves Field (0-1) | 9-11 | |
| » Starters: Rip Sewell vs Al Javery | Sixth | 5½ out |
| Wednesday, May 19 |
| » Lost to Braves (13-8), 2-1 | Braves Field (0-2) | 9-12 | Lost 2 |
| » Starters: Xavier Rescigno vs Nate Andrews | Seventh | 6 out |
| » Lost to Braves (14-8), 5-3 | Braves Field (0-3) | 9-13 | Lost 3 |
| » Starters: Hank Gornicki vs George Jeffcoat | Seventh | 6 out |
| Saturday, May 22 |
| » Lost to Phillies (14-11), 10-0 | Shibe Park (0-1) | 9-14 | Lost 4 |
| » Starters: Bob Klinger vs Schoolboy Rowe | Seventh | 7½ out |
| Sunday, May 23 |
| » Defeated Phillies (14-12), 4-1 | Shibe Park (1-1) | 10-14 | |
| » Starters: Rip Sewell vs Johnny Podgajny | Sixth | 8½ out |
| » Lost to Phillies (15-12), 5-2 | Shibe Park (1-2) | 10-15 | |
| » Starters: Xavier Rescigno vs Jack Kraus | Sixth | 8½ out |
| Wednesday, May 26 |
| » Defeated Dodgers (21-10), 17-4 | Forbes Field (5-3) | 11-15 | |
| » Starters: Max Macon vs Wally Hebert | Sixth | 7½ out |
| Thursday, May 27 |
| » Defeated Dodgers (21-11), 9-5 | Forbes Field (6-3) | 12-15 | Won 2 |
| » Starters: Rube Melton vs Rip Sewell | Sixth | 6½ out |
| Friday, May 28 |
| » Lost to Dodgers (22-11), 6-2 | Forbes Field (6-4) | 12-16 | |
| » Starters: Ed Head vs Hank Gornicki | Seventh | 7½ out |
| Saturday, May 29 |
| » Defeated Phillies (15-16), 12-4 | Forbes Field (7-4) | 13-16 | |
| » Starters: Al Gerheauser vs Xavier Rescigno | Sixth | 6½ out |
| Sunday, May 30 |
| » Defeated Phillies (15-17), 4-3 | Forbes Field (8-4) | 14-16 | Won 2 |
| » Starters: Schoolboy Rowe vs Rip Sewell | Fourth | 6½ out |
| » Defeated Phillies (15-18), 2-1 | Forbes Field (9-4) | 15-16 | Won 3 |
| » Starters: Jack Kraus vs Wally Hebert | Fourth | 6½ out |
| Monday, May 31 |
| » Lost to Braves (16-14), 6-1 | Forbes Field (9-5) | 15-17 | |
| » Starters: Jim Tobin vs Bill Brandt | Fifth | 6½ out |
| » Defeated Braves (16-15), 4-0 | Forbes Field (10-5) | 16-17 | |
| » Starters: Manny Salvo vs Bob Klinger | Fifth | 6½ out |
| Tuesday, June 1 |
| » Defeated Braves (16-16), 5-4 | Forbes Field (11-5) | 17-17 | Won 2 |
| » Starters: Red Barrett vs Jack Hallett | Fourth | 5½ out |
| Wednesday, June 2 |
| » Defeated Braves (16-17), 3-2 | Forbes Field (12-5) | 18-17 | Won 3 |
| » Starters: Nate Andrews vs Wally Hebert | Fourth | 5½ out |
| Thursday, June 3 |
| » Defeated Giants (15-24), 9-6 | Forbes Field (13-5) | 19-17 | Won 4 |
| » Starters: Ken Trinkle vs Rip Sewell | Third | 4½ out |
| Friday, June 4 |
| » Defeated Giants (15-25), 9-8 | Forbes Field (14-5) | 20-17 | Won 5 |
| » Starters: Van Mungo vs Max Butcher | Third | 4½ out |
| Saturday, June 5 |
| » Lost to Giants (16-25), 5-1 | Forbes Field (14-6) | 20-18 | |
| » Starters: Carl Hubbell vs Xavier Rescigno | Third | 4½ out |
| Sunday, June 6 |
| » Defeated Giants (16-26), 18-1 | Forbes Field (15-6) | 21-18 | |
| » Starters: Cliff Melton vs Bob Klinger | Third | 3½ out |
| » Defeated Giants (16-27), 7-0 | Forbes Field (16-6) | 22-18 | Won 2 |
| » Starters: Johnnie Wittig vs Jack Hallett | Third | 3½ out |
| Monday, June 7 |
| » Lost to Dodgers (29-17), 4-1 | Forbes Field (16-7) | 22-19 | |
| » Starters: Freddie Fitzsimmons vs Wally Hebert | Third | 4 out |
| Wednesday, June 9 |
| » Lost to Cardinals (26-14), 4-3 | Sportsman's Park III (0-1) | 22-20 | Lost 2 |
| » Starters: Rip Sewell vs Mort Cooper | Fourth | 5 out |
| Thursday, June 10 |
| » Lost to Cardinals (27-14), 5-0 | Sportsman's Park III (0-2) | 22-21 | Lost 3 |
| » Starters: Hank Gornicki vs Max Lanier | Fourth | 6 out |
| Saturday, June 12 |
| » Lost to Cardinals (28-14), 1-0 | Sportsman's Park III (0-3) | 22-22 | Lost 4 |
| » Starters: Jack Hallett vs Howie Pollet | Fourth | 7 out |
| Sunday, June 13 |
| » Defeated Cardinals (28-15), 10-3 | Sportsman's Park III (1-3) | 23-22 | |
| » Starters: Wally Hebert vs Harry Brecheen | Fourth | 6 out |
| » Tied Cardinals, 4-4 | Sportsman's Park III (1-3) | 23-22 | |
| » Starters: Bob Klinger vs Howie Krist | Fourth | 6 out |
| Tuesday, June 15 |
| » Defeated Cubs (16-31), 4-2 | Forbes Field (17-7) | 24-22 | Won 2 |
| » Starters: Ray Prim vs Rip Sewell | Third | 6½ out |
| Wednesday, June 16 |
| » Defeated Cubs (16-32), 5-2 | Forbes Field (18-7) | 25-22 | Won 3 |
| » Starters: Hi Bithorn vs Hank Gornicki | Third | 5½ out |
| Thursday, June 17 |
| » Lost to Cubs (17-32), 3-2 | Forbes Field (18-8) | 25-23 | |
| » Starters: Paul Derringer vs Wally Hebert | Fourth | 5½ out |
| Friday, June 18 |
| » Lost to Reds (27-22), 1-0 | Forbes Field (18-9) | 25-24 | Lost 2 |
| » Starters: Ray Starr vs Max Butcher | Fifth | 5½ out |
| Saturday, June 19 |
| » Defeated Reds (27-23), 4-3 | Forbes Field (19-9) | 26-24 | |
| » Starters: Bucky Walters vs Bob Klinger | Fourth | 5½ out |
| Sunday, June 20 |
| » Defeated Reds (27-24), 5-4 | Forbes Field (20-9) | 27-24 | Won 2 |
| » Starters: Johnny Vander Meer vs Rip Sewell | Third | 4½ out |
| » Defeated Reds (27-25), 4-2 | Forbes Field (21-9) | 28-24 | Won 3 |
| » Starters: Ed Heusser vs Jack Hallett | Third | 4½ out |
| Tuesday, June 22 |
| » Lost to Cubs (20-34), 1-0 | Wrigley Field (2-3) | 28-25 | |
| » Starters: Johnny Podgajny vs Paul Derringer | Third | 5½ out |
| Wednesday, June 23 |
| » Lost to Cubs (21-34), 4-1 | Wrigley Field (2-4) | 28-26 | Lost 2 |
| » Starters: Wally Hebert vs Claude Passeau | Third | 5 out |
| » Defeated Cubs (21-35), 7-5 | Wrigley Field (3-4) | 29-26 | |
| » Starters: Bob Klinger vs Lon Warneke | Third | 5 out |
| Thursday, June 24 |
| » Defeated Cubs (21-36), 2-1 | Wrigley Field (4-4) | 30-26 | Won 2 |
| » Starters: Rip Sewell vs Bill Lee | Third | 5 out |
| Friday, June 25 |
| Future Pirate John Gelnar is born in Granite, OK. |
| Saturday, June 26 |
| » Defeated Reds (28-28), 9-0 | Crosley Field (2-2) | 31-26 | Won 3 |
| » Starters: Max Butcher vs Johnny Vander Meer | Third | 3½ out |
| Future Pirate Bill Robinson is born in McKeesport, PA. |
| Sunday, June 27 |
| » Lost to Reds (29-28), 6-3 | Crosley Field (2-3) | 31-27 | |
| » Starters: Johnny Podgajny vs Elmer Riddle | Third | 5½ out |
| » Lost to Reds (30-28), 5-1 | Crosley Field (2-4) | 31-28 | Lost 2 |
| » Starters: Hank Gornicki vs Ray Starr | Third | 5½ out |
| Monday, June 28 |
| » Defeated Reds (30-29), 7-1 | Forbes Field (22-9) | 32-28 | |
| » Starters: Bucky Walters vs Rip Sewell | Third | 5 out |
| Wednesday, June 30 |
| » Tied Phillies, 3-3 | Shibe Park (1-2) | 32-28 | |
| » Starters: Max Butcher vs Si Johnson | Third | 6 out |
| Thursday, July 1 |
| » Lost to Phillies (30-30), 6-1 | Shibe Park (1-3) | 32-29 | |
| » Starters: Johnny Podgajny vs Schoolboy Rowe | Third | 5 out |
| » Defeated Phillies (30-31), 2-1 | Shibe Park (2-3) | 33-29 | |
| » Starters: Bob Klinger vs Al Gerheauser | Third | 5 out |
| Friday, July 2 |
| » Defeated Phillies (30-32), 2-1 | Shibe Park (3-3) | 34-29 | Won 2 |
| » Starters: Rip Sewell vs Jack Kraus | Third | 5 out |
| Saturday, July 3 |
| » Defeated Braves (28-35), 10-1 | Braves Field (1-3) | 35-29 | Won 3 |
| » Starters: Johnny Gee vs Al Javery | Third | 5 out |
| Sunday, July 4 |
| » Lost to Braves (29-35), 3-1 | Braves Field (1-4) | 35-30 | |
| » Starters: Wally Hebert vs Red Barrett | Third | 7 out |
| » Lost to Braves (30-35), 13-0 | Braves Field (1-5) | 35-31 | Lost 2 |
| » Starters: Hank Gornicki vs Jim Tobin | Third | 7 out |
| Monday, July 5 |
| » Defeated Giants (27-42), 8-4 | Polo Grounds V (2-2) | 36-31 | |
| » Starters: Max Butcher vs Cliff Melton | Third | 7 out |
| » Lost to Giants (28-42), 9-0 | Polo Grounds V (2-3) | 36-32 | |
| » Starters: Bob Klinger vs Ken Chase | Third | 7 out |
| Thursday, July 8 |
| » Defeated Dodgers (44-33), 8-2 | Ebbets Field (2-1) | 37-32 | |
| » Starters: Rip Sewell vs Freddie Fitzsimmons | Third | 7 out |
| Friday, July 9 |
| » Lost to Dodgers (45-33), 8-7 | Ebbets Field (2-2) | 37-33 | |
| » Starters: Wally Hebert vs Bobo Newsom | Third | 8 out |
| Saturday, July 10 |
| » Lost to Dodgers (46-33), 23-6 | Ebbets Field (2-3) | 37-34 | Lost 2 |
| » Starters: Johnny Podgajny vs Curt Davis | Third | 9 out |
| Sunday, July 11 |
| » Defeated Dodgers (46-34), 3-2 | Ebbets Field (3-3) | 38-34 | |
| » Starters: Max Butcher vs Kirby Higbe | Third | 10 out |
| » Lost to Dodgers (47-34), 5-4 | Ebbets Field (3-4) | 38-35 | |
| » Starters: Hank Gornicki vs Rube Melton | Third | 10 out |
| Thursday, July 15 |
| » Defeated Cardinals (47-25), 4-3 | Forbes Field (23-9) | 39-35 | |
| » Starters: Max Lanier vs Bob Klinger | Third | 9 out |
| Friday, July 16 |
| » Defeated Cardinals (47-26), 9-5 | Forbes Field (24-9) | 40-35 | Won 2 |
| » Starters: Howie Krist vs Rip Sewell | Third | 8 out |
| Saturday, July 17 |
| » Defeated Cardinals (47-27), 7-3 | Forbes Field (25-9) | 41-35 | Won 3 |
| » Starters: Harry Brecheen vs Max Butcher | Third | 6 out |
| » Defeated Cardinals (47-28), 3-2 | Forbes Field (26-9) | 42-35 | Won 4 |
| » Starters: Harry Gumbert vs Wally Hebert | Third | 6 out |
| Sunday, July 18 |
| » Game at Forbes Field interrupted in the 8th inning with the score of Cardinals 6, Pirates 5. Completed on September 01. |
| » Game at Forbes Field interrupted in the 8th inning with the score of Cardinals 6, Pirates 5. Completed on September 01. |
| Tuesday, July 20 |
| » Defeated Phillies (35-45), 1-0 | Forbes Field (27-9) | 43-35 | Won 5 |
| » Starters: Dick Barrett vs Rip Sewell | Third | 5½ out |
| Wednesday, July 21 |
| » Defeated Phillies (35-46), 10-2 | Forbes Field (28-9) | 44-35 | Won 6 |
| » Starters: Dick Conger vs Bob Klinger | Third | 6 out |
| Thursday, July 22 |
| » Lost to Phillies (36-46), 3-0 | Forbes Field (28-10) | 44-36 | |
| » Starters: Schoolboy Rowe vs Max Butcher | Third | 7½ out |
| » Lost to Phillies (37-46), 9-6 | Forbes Field (28-11) | 44-37 | Lost 2 |
| » Starters: Jack Kraus vs Wally Hebert | Third | 7½ out |
| Friday, July 23 |
| » Defeated Phillies (37-47), 3-2 | Forbes Field (29-11) | 45-37 | |
| » Starters: Al Gerheauser vs Bill Brandt | Third | 7½ out |
| Saturday, July 24 |
| » Defeated Dodgers (50-38), 6-1 | Forbes Field (30-11) | 46-37 | Won 2 |
| » Starters: Rube Melton vs Rip Sewell | Third | 7½ out |
| Sunday, July 25 |
| » Defeated Dodgers (50-39), 7-1 | Forbes Field (31-11) | 47-37 | Won 3 |
| » Starters: Kirby Higbe vs Wally Hebert | Second | 7½ out |
| » Defeated Dodgers (50-40), 7-1 | Forbes Field (32-11) | 48-37 | Won 4 |
| » Starters: Ed Head vs Bob Klinger | Second | 7½ out |
| Monday, July 26 |
| » Lost to Dodgers (51-40), 10-6 | Forbes Field (32-12) | 48-38 | |
| » Starters: Curt Davis vs Max Butcher | Third | 8½ out |
| Tuesday, July 27 |
| » Defeated Giants (34-55), 8-5 | Forbes Field (33-12) | 49-38 | |
| » Starters: Ken Chase vs Johnny Gee | Second | 9 out |
| Wednesday, July 28 |
| » Defeated Giants (34-56), 8-3 | Forbes Field (34-12) | 50-38 | Won 2 |
| » Starters: Carl Hubbell vs Rip Sewell | Second | 8 out |
| Friday, July 30 |
| » Lost to Giants (35-56), 13-7 | Forbes Field (34-13) | 50-39 | |
| » Starters: Cliff Melton vs Bob Klinger | Second | 8 out |
| Saturday, July 31 |
| » Lost to Braves (38-49), 6-5 | Forbes Field (34-14) | 50-40 | Lost 2 |
| » Starters: Al Javery vs Wally Hebert | Second | 9 out |
| Sunday, August 1 |
| » Lost to Braves (39-49), 6-3 | Forbes Field (34-15) | 50-41 | Lost 3 |
| » Starters: Jim Tobin vs Johnny Gee | Second | 10 out |
| » Defeated Braves (39-50), 7-1 | Forbes Field (35-15) | 51-41 | |
| » Starters: Dave Odom vs Rip Sewell | Second | 10 out |
| Monday, August 2 |
| » Defeated Braves (39-51), 5-4 | Forbes Field (36-15) | 52-41 | Won 2 |
| » Starters: Manny Salvo vs Bob Klinger | Second | 9½ out |
| Tuesday, August 3 |
| » Lost to Braves (40-51), 6-1 | Forbes Field (36-16) | 52-42 | |
| » Starters: Nate Andrews vs Xavier Rescigno | Second | 10½ out |
| Wednesday, August 4 |
| » Defeated Phillies (43-55), 6-2 | Forbes Field (37-16) | 53-42 | |
| » Starters: Schoolboy Rowe vs Max Butcher | Second | 10 out |
| Thursday, August 5 |
| Future Pirate Nellie Briles is born in Dorris, CA. |
| Friday, August 6 |
| » Lost to Cardinals (63-31), 8-3 | Sportsman's Park III (1-4) | 53-43 | |
| » Starters: Rip Sewell vs Max Lanier | Second | 11 out |
| Saturday, August 7 |
| » Defeated Cardinals (63-32), 4-1 | Sportsman's Park III (2-4) | 54-43 | |
| » Starters: Wally Hebert vs Red Munger | Second | 10 out |
| Sunday, August 8 |
| » Lost to Cardinals (64-32), 8-6 | Sportsman's Park III (2-5) | 54-44 | |
| » Starters: Johnny Gee vs Mort Cooper | Second | 12 out |
| » Lost to Cardinals (65-32), 5-2 | Sportsman's Park III (2-6) | 54-45 | Lost 2 |
| » Starters: Bob Klinger vs Harry Brecheen | Second | 12 out |
| Wednesday, August 11 |
| » Lost to Phillies (48-56), 2-1 | Shibe Park (3-4) | 54-46 | Lost 3 |
| » Starters: Rip Sewell vs Schoolboy Rowe | Second | 12½ out |
| » Lost to Phillies (49-56), 2-0 | Shibe Park (3-5) | 54-47 | Lost 4 |
| » Starters: Hank Gornicki vs Dick Barrett | Second | 12½ out |
| Thursday, August 12 |
| » Lost to Phillies (50-56), 4-3 | Shibe Park (3-6) | 54-48 | Lost 5 |
| » Starters: Xavier Rescigno vs Dick Conger | Second | 13½ out |
| Saturday, August 14 |
| » Defeated Phillies (50-57), 8-2 | Shibe Park (4-6) | 55-48 | |
| » Starters: Bob Klinger vs Jack Kraus | Second | 12½ out |
| » Defeated Phillies (50-58), 2-1 | Shibe Park (5-6) | 56-48 | Won 2 |
| » Starters: Max Butcher vs Al Gerheauser | Second | 12½ out |
| Former Pirate Joe Kelley dies in Baltimore, MD at the age of 72. |
| Sunday, August 15 |
| » Lost to Braves (48-52), 5-1 | Braves Field (1-6) | 56-49 | |
| » Starters: Wally Hebert vs Jim Tobin | Third | 12½ out |
| » Defeated Braves (48-53), 11-1 | Braves Field (2-6) | 57-49 | |
| » Starters: Rip Sewell vs Red Barrett | Third | 12½ out |
| Monday, August 16 |
| » Defeated Braves (48-54), 5-1 | Braves Field (3-6) | 58-49 | Won 2 |
| » Starters: Johnny Gee vs Al Javery | Third | 11½ out |
| Former Pirate Beals Becker dies in Huntington Park, CA at the age of 58. |
| Tuesday, August 17 |
| » Defeated Braves (48-55), 8-0 | Braves Field (4-6) | 59-49 | Won 3 |
| » Starters: Hank Gornicki vs Nate Andrews | Second | 11 out |
| » Defeated Braves (48-56), 4-3 | Braves Field (5-6) | 60-49 | Won 4 |
| » Starters: Xavier Rescigno vs Danny MacFayden | Second | 11 out |
| Wednesday, August 18 |
| » Defeated Giants (39-70), 7-6 | Polo Grounds V (3-3) | 61-49 | Won 5 |
| » Starters: Bob Klinger vs Cliff Melton | Second | 11 out |
| » Lost to Giants (40-70), 3-2 | Polo Grounds V (3-4) | 61-50 | |
| » Starters: Max Butcher vs Carl Hubbell | Second | 11 out |
| Thursday, August 19 |
| » Defeated Giants (40-71), 8-1 | Polo Grounds V (4-4) | 62-50 | |
| » Starters: Wally Hebert vs Rube Fischer | Second | 10 out |
| Friday, August 20 |
| » Lost to Giants (41-71), 3-2 | Polo Grounds V (4-5) | 62-51 | |
| » Starters: Rip Sewell vs Ken Chase | Third | 11½ out |
| » Lost to Giants (42-71), 7-4 | Polo Grounds V (4-6) | 62-52 | Lost 2 |
| » Starters: Johnny Gee vs Cliff Melton | Third | 11½ out |
| Saturday, August 21 |
| » Defeated Giants (42-72), 4-3 | Polo Grounds V (5-6) | 63-52 | |
| » Starters: Xavier Rescigno vs Harry Feldman | Second | 10½ out |
| Sunday, August 22 |
| » Lost to Dodgers (58-57), 6-1 | Ebbets Field (3-5) | 63-53 | |
| » Starters: Hank Gornicki vs Ed Head | Third | 12½ out |
| » Lost to Dodgers (59-57), 8-6 | Ebbets Field (3-6) | 63-54 | Lost 2 |
| » Starters: Johnny Gee vs Rex Barney | Third | 12½ out |
| Tuesday, August 24 |
| » Defeated Dodgers (59-58), 9-6 | Ebbets Field (4-6) | 64-54 | |
| » Starters: Rip Sewell vs Curt Davis | Third | 13 out |
| Wednesday, August 25 |
| » Lost to Dodgers (60-58), 6-4 | Ebbets Field (4-7) | 64-55 | |
| » Starters: Max Butcher vs Whit Wyatt | Third | 14 out |
| Thursday, August 26 |
| » Lost to Cubs (57-61), 3-2 | Forbes Field (37-17) | 64-56 | Lost 2 |
| » Starters: Paul Derringer vs Wally Hebert | Third | 14½ out |
| Friday, August 27 |
| » Lost to Cubs (58-61), 3-2 | Forbes Field (37-18) | 64-57 | Lost 3 |
| » Starters: Claude Passeau vs Bob Klinger | Third | 14½ out |
| Saturday, August 28 |
| » Defeated Cubs (58-62), 5-4 | Forbes Field (38-18) | 65-57 | |
| » Starters: Hank Wyse vs Johnny Podgajny | Third | 13½ out |
| Sunday, August 29 |
| » Lost to Cubs (59-62), 11-2 | Forbes Field (38-19) | 65-58 | |
| » Starters: Hi Bithorn vs Rip Sewell | Third | 13½ out |
| » Defeated Cubs (59-63), 3-1 | Forbes Field (39-19) | 66-58 | |
| » Starters: Ed Hanyzewski vs Hank Gornicki | Third | 13½ out |
| Monday, August 30 |
| » Defeated Cardinals (77-43), 4-3 | Forbes Field (40-19) | 67-58 | Won 2 |
| » Starters: Al Brazle vs Max Butcher | Third | 13½ out |
| » Lost to Cardinals (78-43), 8-3 | Forbes Field (40-20) | 67-59 | |
| » Starters: Harry Brecheen vs Wally Hebert | Third | 13½ out |
| Tuesday, August 31 |
| » Lost to Cardinals (79-43), 4-2 | Forbes Field (40-21) | 67-60 | Lost 2 |
| » Starters: Max Lanier vs Bob Klinger | Third | 14½ out |
| Wednesday, September 1 |
| » Lost to Cardinals (80-43), 8-6 | Forbes Field (40-22) | 67-61 | Lost 3 |
| » Starters: Mort Cooper vs Johnny Gee | Fourth | 17½ out |
| » Lost to Cardinals (81-43), 7-4 | Forbes Field (40-23) | 67-62 | Lost 4 |
| » Starters: Mort Cooper vs Hank Gornicki | Fourth | 17½ out |
| » Lost to Cardinals (82-43), 6-5 | Forbes Field (40-24) | 67-63 | Lost 5 |
| » Starters: Murry Dickson vs Xavier Rescigno | Fourth | 17½ out |
| Thursday, September 2 |
| Future Pirate Luke Walker is born in DeKalb, TX. |
| Friday, September 3 |
| » Defeated Cubs (61-65), 5-1 | Wrigley Field (5-4) | 68-63 | |
| » Starters: Rip Sewell vs Ed Hanyzewski | Fourth | 17½ out |
| Saturday, September 4 |
| » Defeated Cubs (61-66), 7-4 | Wrigley Field (6-4) | 69-63 | Won 2 |
| » Starters: Hank Gornicki vs Paul Derringer | Fourth | 17½ out |
| Sunday, September 5 |
| » Defeated Cubs (61-67), 5-4 | Wrigley Field (7-4) | 70-63 | Won 3 |
| » Starters: Bob Klinger vs Claude Passeau | Fourth | 17 out |
| Monday, September 6 |
| » Lost to Cardinals (86-44), 3-2 | Sportsman's Park III (2-7) | 70-64 | |
| » Starters: Max Butcher vs Al Brazle | Fourth | 19 out |
| » Lost to Cardinals (87-44), 6-2 | Sportsman's Park III (2-8) | 70-65 | Lost 2 |
| » Starters: Wally Hebert vs Harry Brecheen | Fourth | 19 out |
| Wednesday, September 8 |
| » Lost to Cardinals (88-44), 5-1 | Sportsman's Park III (2-9) | 70-66 | Lost 3 |
| » Starters: Rip Sewell vs Red Munger | Fourth | 20 out |
| Friday, September 10 |
| » Defeated Reds (72-59), 9-6 | Crosley Field (3-4) | 71-66 | |
| » Starters: Hank Gornicki vs Clyde Shoun | Fourth | 20½ out |
| » Lost to Reds (73-59), 1-0 | Crosley Field (3-5) | 71-67 | |
| » Starters: Max Butcher vs Bucky Walters | Fourth | 20½ out |
| Saturday, September 11 |
| » Defeated Reds (73-60), 11-1 | Crosley Field (4-5) | 72-67 | |
| » Starters: Bob Klinger vs Johnny Vander Meer | Fourth | 20½ out |
| Former Pirate Kid Durbin dies in Kirkwood, MO at the age of 58. |
| Sunday, September 12 |
| » Lost to Reds (74-60), 1-0 | Crosley Field (4-6) | 72-68 | |
| » Starters: Rip Sewell vs Elmer Riddle | Fourth | 20½ out |
| » Defeated Reds (74-61), 7-0 | Crosley Field (5-6) | 73-68 | |
| » Starters: Xavier Rescigno vs Ray Starr | Fourth | 20½ out |
| Friday, September 17 |
| » Defeated Reds (74-62), 1-0 | Forbes Field (41-24) | 74-68 | Won 2 |
| » Starters: Bucky Walters vs Max Butcher | Fourth | 21 out |
| Sunday, September 19 |
| » Defeated Reds (74-63), 10-3 | Forbes Field (42-24) | 75-68 | Won 3 |
| » Starters: Elmer Riddle vs Rip Sewell | Fourth | 20 out |
| » Defeated Reds (74-64), 2-1 | Forbes Field (43-24) | 76-68 | Won 4 |
| » Starters: Johnny Vander Meer vs Xavier Rescigno | Fourth | 20 out |
| Wednesday, September 22 |
| » Lost to Braves (64-75), 5-3 | Forbes Field (43-25) | 76-69 | |
| » Starters: Nate Andrews vs Hank Gornicki | Fourth | 21 out |
| Thursday, September 23 |
| » Lost to Braves (65-75), 2-1 | Forbes Field (43-26) | 76-70 | Lost 2 |
| » Starters: Jim Tobin vs Johnny Gee | Fourth | 21 out |
| Friday, September 24 |
| » Major-league debuts: John Ostrowski (Cubs) |
| Saturday, September 25 |
| » Defeated Giants (54-90), 7-2 | Forbes Field (44-26) | 77-70 | |
| » Starters: Ken Chase vs Max Butcher | Fourth | 21½ out |
| Sunday, September 26 |
| » Defeated Giants (54-91), 5-0 | Forbes Field (45-26) | 78-70 | Won 2 |
| » Starters: Cliff Melton vs Bob Klinger | Fourth | 21½ out |
| » Lost to Giants (55-91), 4-3 | Forbes Field (45-27) | 78-71 | |
| » Starters: Bill Voiselle vs Xavier Rescigno | Fourth | 21½ out |
| Tuesday, September 28 |
| » Defeated Dodgers (78-69), 5-2 | Forbes Field (46-27) | 79-71 | |
| » Starters: Rex Barney vs Wally Hebert | Third | 21 out |
| » Defeated Dodgers (78-70), 4-2 | Forbes Field (47-27) | 80-71 | Won 2 |
| » Starters: Curt Davis vs Bill Brandt | Third | 21 out |
| Wednesday, September 29 |
| » Lost to Dodgers (79-70), 14-7 | Forbes Field (47-28) | 80-72 | |
| » Starters: Whit Wyatt vs Max Butcher | Fourth | 22 out |
| Sunday, October 3 |
| » Lost to Phillies (63-90), 3-1 | Forbes Field (47-29) | 80-73 | Lost 2 |
| » Starters: Dick Barrett vs Johnny Gee | Fourth | 25 out |
| » Lost to Phillies (64-90), 11-3 | Forbes Field (47-30) | 80-74 | Lost 3 |
| » Starters: Rogers McKee vs Cookie Cuccurullo | Fourth | 25 out |
| » Major-league debuts: Cookie Cuccurullo and Tony Ordenana (Pirates) |
| Saturday, October 23 |
| Former Pirate Heinie Peitz dies in Cincinnati, OH at the age of 73. |
| Thursday, November 18 |
| Future Pirate Jim Shellenback is born in Riverside, CA. |
| Tuesday, December 14 |
| Future Pirate Jerry May is born in Staunton, VA. |
| Thursday, December 23 |
| Future Pirate Dave May is born in New Castle, DE. |
Game information provided by Retrosheet (www.retrosheet.org) |