| Wednesday, January 25 |
| Former Pirate Abner Dalrymple dies in Warren, IL at the age of 82. |
| Saturday, February 18 |
| Future Pirate Bob Miller is born in St. Louis, MO. |
| Monday, March 13 |
| Future Pirate Al Luplow is born in Saginaw, MI. |
| Monday, April 17 |
| » Defeated Reds (0-1), 7-5 | Crosley Field (1-0) | 1-0 | |
| » Starters: Cy Blanton vs Johnny Vander Meer | First | -- |
| Tuesday, April 18 |
| » Lost to Cardinals (1-0), 3-2 | Forbes Field (0-1) | 1-1 | |
| » Starters: Bob Weiland vs Bob Klinger | Third | ½ out |
| » Major-league debuts: Joe Orengo (Cardinals) |
| Saturday, April 22 |
| » Lost to Reds (1-1), 4-2 | Crosley Field (1-1) | 1-2 | Lost 2 |
| » Starters: Cy Blanton vs Paul Derringer | Fifth | 1½ out |
| Sunday, April 23 |
| » Lost to Reds (2-1), 7-2 | Crosley Field (1-2) | 1-3 | Lost 3 |
| » Starters: Bob Klinger vs Bucky Walters | Fourth | 1½ out |
| Monday, April 24 |
| » Lost to Cubs (3-1), 6-2 | Wrigley Field (0-1) | 1-4 | Lost 4 |
| » Starters: Jim Tobin vs Earl Whitehill | Seventh | 2½ out |
| Tuesday, April 25 |
| » Lost to Cubs (4-1), 5-3 | Wrigley Field (0-2) | 1-5 | Lost 5 |
| » Starters: Rip Sewell vs Bill Lee | Eighth | 3½ out |
| Wednesday, April 26 |
| » Lost to Cubs (5-1), 3-1 | Wrigley Field (0-3) | 1-6 | Lost 6 |
| » Starters: Cy Blanton vs Gene Lillard | Eighth | 4½ out |
| Thursday, April 27 |
| » Lost to Cardinals (4-3), 6-5 | Sportsman's Park III (0-1) | 1-7 | Lost 7 |
| » Starters: Bob Klinger vs Tom Sunkel | Seventh | 4½ out |
| » Major-league debuts: Buster Adams and Herman Franks (Cardinals) |
| Saturday, April 29 |
| » Lost to Reds (6-2), 5-3 | Forbes Field (0-2) | 1-8 | Lost 8 |
| » Starters: Bucky Walters vs Jim Tobin | Eighth | 5½ out |
| Monday, May 1 |
| » Defeated Reds (6-3), 2-1 | Forbes Field (1-2) | 2-8 | |
| » Starters: Whitey Moore vs Rip Sewell | Seventh | 5½ out |
| Tuesday, May 2 |
| » Defeated Dodgers (5-5), 3-2 | Ebbets Field (1-0) | 3-8 | Won 2 |
| » Starters: Bob Klinger vs Freddie Fitzsimmons | Seventh | 4½ out |
| Thursday, May 4 |
| » Defeated Phillies (6-7), 6-4 | Shibe Park (1-0) | 4-8 | Won 3 |
| » Starters: Jim Tobin vs Max Butcher | Fourth | 4 out |
| Friday, May 5 |
| » Defeated Phillies (6-8), 10-7 | Shibe Park (2-0) | 5-8 | Won 4 |
| » Starters: Rip Sewell vs Al Hollingsworth | Fourth | 3 out |
| Saturday, May 6 |
| » Lost to Phillies (7-8), 1-0 | Shibe Park (2-1) | 5-9 | |
| » Starters: Joe Bowman vs Claude Passeau | Fifth | 3½ out |
| Sunday, May 7 |
| » Defeated Braves (8-7), 9-2 | Braves Field (1-0) | 6-9 | |
| » Starters: Bob Klinger vs Bill Posedel | Seventh | 3½ out |
| Monday, May 8 |
| » Defeated Braves (8-8), 3-2 | Braves Field (2-0) | 7-9 | Won 2 |
| » Starters: Jim Tobin vs Danny MacFayden | Fifth | 2½ out |
| Wednesday, May 10 |
| » Defeated Giants (8-11), 5-0 | Polo Grounds V (1-0) | 8-9 | Won 3 |
| » Starters: Rip Sewell vs Harry Gumbert | Fourth | 2 out |
| Thursday, May 11 |
| » Lost to Giants (9-11), 4-1 | Polo Grounds V (1-1) | 8-10 | |
| » Starters: Joe Bowman vs Cliff Melton | Sixth | 2½ out |
| Saturday, May 13 |
| » Lost to Cubs (11-10), 6-2 | Forbes Field (1-3) | 8-11 | Lost 2 |
| » Starters: Bill Lee vs Bob Klinger | Seventh | 3 out |
| Sunday, May 14 |
| » Defeated Cubs (11-11), 5-2 | Forbes Field (2-3) | 9-11 | |
| » Starters: Gene Lillard vs Jim Tobin | Seventh | 3 out |
| Monday, May 15 |
| » Lost to Cubs (12-11), 6-2 | Forbes Field (2-4) | 9-12 | |
| » Starters: Larry French vs Rip Sewell | Seventh | 3½ out |
| Tuesday, May 16 |
| » Defeated Phillies (9-13), 8-5 | Forbes Field (3-4) | 10-12 | |
| » Starters: Claude Passeau vs Joe Bowman | Fifth | 3½ out |
| Wednesday, May 17 |
| » Lost to Phillies (10-13), 7-3 | Forbes Field (3-5) | 10-13 | |
| » Starters: Hugh Mulcahy vs Bob Klinger | Seventh | 3½ out |
| Thursday, May 18 |
| » Defeated Phillies (10-14), 5-4 | Forbes Field (4-5) | 11-13 | |
| » Starters: Al Hollingsworth vs Jim Tobin | Sixth | 3½ out |
| Friday, May 19 |
| » Lost to Braves (13-12), 5-2 | Forbes Field (4-6) | 11-14 | |
| » Starters: Lou Fette vs Rip Sewell | Seventh | 4 out |
| Saturday, May 20 |
| » Defeated Braves (13-13), 12-6 | Forbes Field (5-6) | 12-14 | |
| » Starters: Joe Sullivan vs Joe Bowman | Fifth | 4 out |
| Sunday, May 21 |
| » Defeated Giants (12-16), 4-1 | Forbes Field (6-6) | 13-14 | Won 2 |
| » Starters: Carl Hubbell vs Bob Klinger | Fourth | 4 out |
| Monday, May 22 |
| » Lost to Giants (13-16), 9-2 | Forbes Field (6-7) | 13-15 | |
| » Starters: Hal Schumacher vs Jim Tobin | Fifth | 5 out |
| Tuesday, May 23 |
| » Defeated Giants (13-17), 13-4 | Forbes Field (7-7) | 14-15 | |
| » Starters: Cliff Melton vs Rip Sewell | Fourth | 5 out |
| Wednesday, May 24 |
| » Defeated Dodgers (11-17), 6-3 | Forbes Field (8-7) | 15-15 | Won 2 |
| » Starters: Vito Tamulis vs Joe Bowman | Fourth | 5 out |
| Thursday, May 25 |
| » Lost to Dodgers (12-17), 8-2 | Forbes Field (8-8) | 15-16 | |
| » Starters: Tot Pressnell vs Bob Klinger | Fourth | 6 out |
| Friday, May 26 |
| » Defeated Cubs (17-16), 14-5 | Wrigley Field (1-3) | 16-16 | |
| » Starters: Jim Tobin vs Bill Lee | Fourth | 6 out |
| Saturday, May 27 |
| » Defeated Cubs (17-17), 9-1 | Wrigley Field (2-3) | 17-16 | Won 2 |
| » Starters: Rip Sewell vs Kirby Higbe | Third | 6 out |
| Sunday, May 28 |
| » Lost to Cubs (18-17), 6-2 | Wrigley Field (2-4) | 17-17 | |
| » Starters: Joe Bowman vs Dizzy Dean | Fourth | 6½ out |
| Monday, May 29 |
| » Defeated Cardinals (21-13), 7-0 | Sportsman's Park III (1-1) | 18-17 | |
| » Starters: Bob Klinger vs Bob Weiland | Third | 6½ out |
| Tuesday, May 30 |
| » Lost to Cardinals (22-13), 7-2 | Sportsman's Park III (1-2) | 18-18 | |
| » Starters: Jim Tobin vs Lon Warneke | Fourth | 5½ out |
| » Defeated Cardinals (22-14), 14-8 | Sportsman's Park III (2-2) | 19-18 | |
| » Starters: Russ Bauers vs Clyde Shoun | Fourth | 5½ out |
| Thursday, June 1 |
| » Defeated Phillies (12-25), 5-2 | Shibe Park (3-1) | 20-18 | Won 2 |
| » Starters: Rip Sewell vs Kirby Higbe | Third | 5½ out |
| Saturday, June 3 |
| » Defeated Phillies (12-26), 10-7 | Shibe Park (4-1) | 21-18 | Won 3 |
| » Starters: Joe Bowman vs Jennings Poindexter | Third | 5 out |
| Sunday, June 4 |
| » Defeated Dodgers (18-20), 7-3 | Ebbets Field (2-0) | 22-18 | Won 4 |
| » Starters: Jim Tobin vs Luke Hamlin | Third | 5½ out |
| » Lost to Dodgers (19-20), 14-1 | Ebbets Field (2-1) | 22-19 | |
| » Starters: Bob Klinger vs Hugh Casey | Third | 5½ out |
| Monday, June 5 |
| » Lost to Dodgers (20-20), 6-2 | Ebbets Field (2-2) | 22-20 | Lost 2 |
| » Starters: Rip Sewell vs Vito Tamulis | Third | 6½ out |
| Tuesday, June 6 |
| » Lost to Dodgers (21-20), 5-2 | Ebbets Field (2-3) | 22-21 | Lost 3 |
| » Starters: Joe Bowman vs Freddie Fitzsimmons | Third | 6½ out |
| Wednesday, June 7 |
| » Defeated Braves (17-25), 2-0 | Braves Field (3-0) | 23-21 | |
| » Starters: Bill Swift vs Danny MacFayden | Third | 6½ out |
| Thursday, June 8 |
| » Lost to Braves (18-25), 2-0 | Braves Field (3-1) | 23-22 | |
| » Starters: Jim Tobin vs Lou Fette | Third | 7½ out |
| Friday, June 9 |
| » Lost to Braves (19-25), 4-1 | Braves Field (3-2) | 23-23 | Lost 2 |
| » Starters: Bob Klinger vs Bill Posedel | Fourth | 8 out |
| Future Pirate Julio Gotay is born in Fajardo, P.R. |
| Saturday, June 10 |
| » Lost to Giants (23-25), 6-2 | Polo Grounds V (1-2) | 23-24 | Lost 3 |
| » Starters: Rip Sewell vs Hal Schumacher | Fifth | 8 out |
| Sunday, June 11 |
| » Lost to Giants (24-25), 7-3 | Polo Grounds V (1-3) | 23-25 | Lost 4 |
| » Starters: Joe Bowman vs Harry Gumbert | Sixth | 9 out |
| » Lost to Giants (25-25), 5-4 | Polo Grounds V (1-4) | 23-26 | Lost 5 |
| » Starters: Bill Swift vs Manny Salvo | Sixth | 9 out |
| Thursday, June 15 |
| » Lost to Braves (21-27), 6-5 | Forbes Field (8-9) | 23-27 | Lost 6 |
| » Starters: Lou Fette vs Jim Tobin | Sixth | 10½ out |
| Friday, June 16 |
| » Defeated Braves (21-28), 4-2 | Forbes Field (9-9) | 24-27 | |
| » Starters: Bill Posedel vs Bob Klinger | Sixth | 10 out |
| Saturday, June 17 |
| » Lost to Phillies (18-32), 11-2 | Forbes Field (9-10) | 24-28 | |
| » Starters: Al Hollingsworth vs Russ Bauers | Sixth | 11 out |
| Wednesday, June 21 |
| » Lost to Giants (30-26), 6-4 | Forbes Field (9-11) | 24-29 | Lost 2 |
| » Starters: Cliff Melton vs Jim Tobin | Sixth | 11½ out |
| Thursday, June 22 |
| » Defeated Giants (30-27), 8-7 | Forbes Field (10-11) | 25-29 | |
| » Starters: Hal Schumacher vs Bob Klinger | Sixth | 11 out |
| Friday, June 23 |
| » Defeated Dodgers (27-28), 2-1 | Forbes Field (11-11) | 26-29 | Won 2 |
| » Starters: Luke Hamlin vs Russ Bauers | Sixth | 10 out |
| Saturday, June 24 |
| » Defeated Dodgers (27-29), 6-2 | Forbes Field (12-11) | 27-29 | Won 3 |
| » Starters: Tot Pressnell vs Jim Tobin | Fifth | 9 out |
| Sunday, June 25 |
| » Lost to Dodgers (28-29), 6-5 | Forbes Field (12-12) | 27-30 | |
| » Starters: Hugh Casey vs Bob Klinger | Sixth | 9 out |
| Tuesday, June 27 |
| » Lost to Reds (38-22), 6-0 | Crosley Field (1-3) | 27-31 | Lost 2 |
| » Starters: Russ Bauers vs Paul Derringer | Sixth | 10 out |
| Saturday, July 1 |
| » Defeated Cardinals (33-28), 4-3 | Sportsman's Park III (3-2) | 28-31 | |
| » Starters: Joe Bowman vs Curt Davis | Sixth | 9½ out |
| Sunday, July 2 |
| » Defeated Cardinals (33-29), 8-5 | Sportsman's Park III (4-2) | 29-31 | Won 2 |
| » Starters: Bob Klinger vs Bob Weiland | Fifth | 8½ out |
| » Defeated Cardinals (33-30), 6-3 | Sportsman's Park III (5-2) | 30-31 | Won 3 |
| » Starters: Jim Tobin vs Lon Warneke | Fifth | 8½ out |
| Tuesday, July 4 |
| » Lost to Reds (41-24), 7-4 | Forbes Field (12-13) | 30-32 | |
| » Starters: Whitey Moore vs Russ Bauers | Sixth | 8½ out |
| » Defeated Reds (41-25), 4-3 | Forbes Field (13-13) | 31-32 | |
| » Starters: Johnny Vander Meer vs Mace Brown | Sixth | 8½ out |
| Wednesday, July 5 |
| » Defeated Cubs (37-35), 10-1 | Forbes Field (14-13) | 32-32 | Won 2 |
| » Starters: Charlie Root vs Joe Bowman | Sixth | 8½ out |
| Thursday, July 6 |
| » Defeated Cubs (37-36), 7-2 | Forbes Field (15-13) | 33-32 | Won 3 |
| » Starters: Dizzy Dean vs Bob Klinger | Fifth | 8½ out |
| Friday, July 7 |
| » Lost to Cubs (38-36), 5-4 | Forbes Field (15-14) | 33-33 | |
| » Starters: Bill Lee vs Jim Tobin | Sixth | 9 out |
| Sunday, July 9 |
| » Lost to Cardinals (36-33), 7-3 | Forbes Field (15-15) | 33-34 | Lost 2 |
| » Starters: Mort Cooper vs Mace Brown | Sixth | 9 out |
| » Defeated Cardinals (36-34), 8-6 | Forbes Field (16-15) | 34-34 | |
| » Starters: Bob Weiland vs Joe Bowman | Sixth | 9 out |
| Wednesday, July 12 |
| » Defeated Dodgers (35-34), 3-0 | Ebbets Field (3-3) | 35-34 | Won 2 |
| » Starters: Mace Brown vs Whit Wyatt | Fifth | 8½ out |
| Friday, July 14 |
| » Lost to Dodgers (36-34), 14-4 | Ebbets Field (3-4) | 35-35 | |
| » Starters: Joe Bowman vs Luke Hamlin | Sixth | 9 out |
| Saturday, July 15 |
| » Lost to Dodgers (37-34), 6-2 | Ebbets Field (3-5) | 35-36 | Lost 2 |
| » Starters: Bill Swift vs Freddie Fitzsimmons | Sixth | 10 out |
| Sunday, July 16 |
| » Lost to Phillies (23-47), 3-2 | Shibe Park (4-2) | 35-37 | Lost 3 |
| » Starters: Mace Brown vs Hugh Mulcahy | Sixth | 9 out |
| » Defeated Phillies (23-48), 7-3 | Shibe Park (5-2) | 36-37 | |
| » Starters: Bob Klinger vs Max Butcher | Sixth | 9 out |
| Monday, July 17 |
| » Defeated Phillies (23-49), 7-4 | Shibe Park (6-2) | 37-37 | Won 2 |
| » Starters: Joe Bowman vs Ray Harrell | Sixth | 9 out |
| Tuesday, July 18 |
| » Lost to Phillies (24-49), 8-3 | Shibe Park (6-3) | 37-38 | |
| » Starters: Bill Swift vs Syl Johnson | Sixth | 10 out |
| Wednesday, July 19 |
| » Defeated Giants (41-39), 10-3 | Polo Grounds V (2-4) | 38-38 | |
| » Starters: Mace Brown vs Bill Lohrman | Fifth | 10 out |
| Thursday, July 20 |
| » Defeated Giants (41-40), 8-4 | Polo Grounds V (3-4) | 39-38 | Won 2 |
| » Starters: Bob Klinger vs Harry Gumbert | Fifth | 9½ out |
| Friday, July 21 |
| » Defeated Giants (41-41), 4-3 | Polo Grounds V (4-4) | 40-38 | Won 3 |
| » Starters: Jim Tobin vs Cliff Melton | Fourth | 9 out |
| Saturday, July 22 |
| » Defeated Braves (39-43), 9-3 | Braves Field (4-2) | 41-38 | Won 4 |
| » Starters: Bill Swift vs Danny MacFayden | Fourth | 9 out |
| Sunday, July 23 |
| » Defeated Braves (39-44), 3-2 | Braves Field (5-2) | 42-38 | Won 5 |
| » Starters: Mace Brown vs Milt Shoffner | Fourth | 10 out |
| » Lost to Braves (40-44), 1-0 | Braves Field (5-3) | 42-39 | |
| » Starters: Bob Klinger vs Lou Fette | Fourth | 10 out |
| Tuesday, July 25 |
| » Defeated Phillies (25-55), 5-4 | Forbes Field (17-15) | 43-39 | |
| » Starters: Ike Pearson vs Jim Tobin | Third | 10 out |
| Wednesday, July 26 |
| » Defeated Phillies (25-56), 3-1 | Forbes Field (18-15) | 44-39 | Won 2 |
| » Starters: Kirby Higbe vs Bill Swift | Second | 9 out |
| » Defeated Phillies (25-57), 5-3 | Forbes Field (19-15) | 45-39 | Won 3 |
| » Starters: Boom-Boom Beck vs Joe Bowman | Second | 9 out |
| Thursday, July 27 |
| » Lost to Phillies (26-57), 9-8 | Forbes Field (19-16) | 45-40 | |
| » Starters: Max Butcher vs Bob Klinger | Third | 10½ out |
| Friday, July 28 |
| » Lost to Braves (41-47), 7-1 | Forbes Field (19-17) | 45-41 | Lost 2 |
| » Starters: Jim Turner vs Mace Brown | Fourth | 11 out |
| Saturday, July 29 |
| » Defeated Braves (41-48), 6-5 | Forbes Field (20-17) | 46-41 | |
| » Starters: Milt Shoffner vs Joe Bowman | Second | 11½ out |
| Sunday, July 30 |
| » Lost to Braves (42-48), 7-5 | Forbes Field (20-18) | 46-42 | |
| » Starters: Bill Posedel vs Bill Swift | Third | 13 out |
| Tuesday, August 1 |
| » Lost to Dodgers (45-45), 5-3 | Forbes Field (20-19) | 46-43 | Lost 2 |
| » Starters: Freddie Fitzsimmons vs Mace Brown | Fourth | 13 out |
| Wednesday, August 2 |
| » Defeated Dodgers (45-46), 6-0 | Forbes Field (21-19) | 47-43 | |
| » Starters: Luke Hamlin vs Joe Bowman | Fourth | 12 out |
| Thursday, August 3 |
| » Lost to Dodgers (46-46), 4-1 | Forbes Field (21-20) | 47-44 | |
| » Starters: Tot Pressnell vs Max Butcher | Fourth | 12½ out |
| Friday, August 4 |
| » Defeated Giants (46-47), 3-2 | Forbes Field (22-20) | 48-44 | |
| » Starters: Harry Gumbert vs Rip Sewell | Fourth | 12½ out |
| Saturday, August 5 |
| » Lost to Giants (47-47), 4-3 | Forbes Field (22-21) | 48-45 | |
| » Starters: Carl Hubbell vs Mace Brown | Fourth | 12½ out |
| Sunday, August 6 |
| » Lost to Giants (48-47), 9-5 | Forbes Field (22-22) | 48-46 | Lost 2 |
| » Starters: Hal Schumacher vs Joe Bowman | Fourth | 12½ out |
| » Defeated Giants (48-48), 6-0 | Forbes Field (23-22) | 49-46 | |
| » Starters: Manny Salvo vs Bob Klinger | Fourth | 12½ out |
| Wednesday, August 9 |
| » Lost to Cardinals (56-42), 5-3 | Sportsman's Park III (5-3) | 49-47 | |
| » Starters: Russ Bauers vs Tom Sunkel | Fifth | 14 out |
| Friday, August 11 |
| » Lost to Cubs (56-49), 3-2 | Wrigley Field (2-5) | 49-48 | Lost 2 |
| » Starters: Max Butcher vs Bill Lee | Fifth | 14 out |
| Saturday, August 12 |
| » Lost to Cubs (57-49), 6-4 | Wrigley Field (2-6) | 49-49 | Lost 3 |
| » Starters: Mace Brown vs Clay Bryant | Fifth | 15 out |
| Sunday, August 13 |
| » Lost to Cubs (58-49), 5-4 | Wrigley Field (2-7) | 49-50 | Lost 4 |
| » Starters: Bob Klinger vs Dizzy Dean | Fifth | 14½ out |
| Monday, August 14 |
| » Lost to Reds (67-38), 9-8 | Crosley Field (1-4) | 49-51 | Lost 5 |
| » Starters: Russ Bauers vs Paul Derringer | Sixth | 15½ out |
| Tuesday, August 15 |
| » Lost to Reds (68-38), 6-5 | Crosley Field (1-5) | 49-52 | Lost 6 |
| » Starters: Joe Bowman vs Johnny Niggeling | Sixth | 16½ out |
| Wednesday, August 16 |
| » Lost to Cardinals (60-44), 4-3 | Forbes Field (23-23) | 49-53 | Lost 7 |
| » Starters: Bob Weiland vs Bob Klinger | Sixth | 17 out |
| » Lost to Cardinals (61-44), 3-0 | Forbes Field (23-24) | 49-54 | Lost 8 |
| » Starters: Bill McGee vs Max Butcher | Sixth | 17 out |
| Thursday, August 17 |
| » Lost to Cardinals (62-44), 4-2 | Forbes Field (23-25) | 49-55 | Lost 9 |
| » Starters: Curt Davis vs Mace Brown | Sixth | 18 out |
| Friday, August 18 |
| » Lost to Cardinals (63-44), 3-0 | Forbes Field (23-26) | 49-56 | Lost 10 |
| » Starters: Bob Bowman vs Russ Bauers | Sixth | 18½ out |
| Saturday, August 19 |
| » Lost to Cubs (61-51), 5-0 | Forbes Field (23-27) | 49-57 | Lost 11 |
| » Starters: Bill Lee vs Jim Tobin | Sixth | 19 out |
| Sunday, August 20 |
| » Lost to Cubs (62-51), 9-5 | Forbes Field (23-28) | 49-58 | Lost 12 |
| » Starters: Claude Passeau vs Bob Klinger | Sixth | 18 out |
| » Defeated Cubs (62-52), 5-0 | Forbes Field (24-28) | 50-58 | |
| » Starters: Earl Whitehill vs Max Butcher | Sixth | 18 out |
| Tuesday, August 22 |
| » Defeated Braves (47-62), 8-2 | Braves Field (6-3) | 51-58 | Won 2 |
| » Starters: Joe Bowman vs Lou Fette | Sixth | 17½ out |
| Wednesday, August 23 |
| » Lost to Braves (48-62), 1-0 | Braves Field (6-4) | 51-59 | |
| » Starters: Mace Brown vs Bill Posedel | Sixth | 19 out |
| » Lost to Braves (49-62), 3-1 | Braves Field (6-5) | 51-60 | Lost 2 |
| » Starters: Ken Heintzelman vs Danny MacFayden | Sixth | 19 out |
| Thursday, August 24 |
| » Defeated Giants (56-57), 4-3 | Polo Grounds V (5-4) | 52-60 | |
| » Starters: Max Butcher vs Manny Salvo | Sixth | 18 out |
| Saturday, August 26 |
| » Lost to Giants (57-57), 6-2 | Polo Grounds V (5-5) | 52-61 | |
| » Starters: Bob Klinger vs Hal Schumacher | Sixth | 19 out |
| » Lost to Giants (58-57), 8-0 | Polo Grounds V (5-6) | 52-62 | Lost 2 |
| » Starters: Joe Bowman vs Cliff Melton | Sixth | 19 out |
| Sunday, August 27 |
| » Lost to Dodgers (60-55), 3-2 | Ebbets Field (3-6) | 52-63 | Lost 3 |
| » Starters: Mace Brown vs Freddie Fitzsimmons | Sixth | 19½ out |
| » Defeated Dodgers (60-56), 9-5 | Ebbets Field (4-6) | 53-63 | |
| » Starters: Cy Blanton vs Al Hollingsworth | Sixth | 19½ out |
| Thursday, August 31 |
| » Defeated Phillies (38-78), 1-0 | Shibe Park (7-3) | 54-63 | Won 2 |
| » Starters: Max Butcher vs Kirby Higbe | Sixth | 19 out |
| » Lost to Phillies (39-78), 11-6 | Shibe Park (7-4) | 54-64 | |
| » Starters: Bob Klinger vs Boom-Boom Beck | Sixth | 19 out |
| Saturday, September 2 |
| » Defeated Cardinals (68-52), 11-3 | Sportsman's Park III (6-3) | 55-64 | |
| » Starters: Mace Brown vs Bob Bowman | Sixth | 18 out |
| » Major-league debuts: Bob Elliott (Pirates) |
| Sunday, September 3 |
| » Lost to Cardinals (69-52), 14-6 | Sportsman's Park III (6-4) | 55-65 | |
| » Starters: Joe Bowman vs Curt Davis | Sixth | 19½ out |
| » Lost to Cardinals (70-52), 3-0 | Sportsman's Park III (6-5) | 55-66 | Lost 2 |
| » Starters: Cy Blanton vs Bob Weiland | Sixth | 19½ out |
| Monday, September 4 |
| » Defeated Cubs (70-58), 2-1 | Wrigley Field (3-7) | 56-66 | |
| » Starters: Max Butcher vs Dizzy Dean | Sixth | 18 out |
| » Defeated Cubs (70-59), 6-3 | Wrigley Field (4-7) | 57-66 | Won 2 |
| » Starters: Bob Klinger vs Vance Page | Sixth | 18 out |
| Wednesday, September 6 |
| » Defeated Reds (75-48), 5-4 | Forbes Field (25-28) | 58-66 | Won 3 |
| » Starters: Junior Thompson vs Mace Brown | Sixth | 18½ out |
| » Lost to Reds (76-48), 4-3 | Forbes Field (25-29) | 58-67 | |
| » Starters: Paul Derringer vs Joe Bowman | Sixth | 18½ out |
| Thursday, September 7 |
| » Defeated Reds (76-49), 8-7 | Forbes Field (26-29) | 59-67 | |
| » Starters: Milt Shoffner vs Cy Blanton | Fifth | 17½ out |
| » Major-league debuts: Maurice Van Robays (Pirates) |
| Friday, September 8 |
| » Lost to Reds (77-49), 5-2 | Forbes Field (26-30) | 59-68 | |
| » Starters: Bucky Walters vs Max Butcher | Sixth | 18½ out |
| Saturday, September 9 |
| » Lost to Cardinals (74-54), 12-2 | Forbes Field (26-31) | 59-69 | Lost 2 |
| » Starters: Bob Weiland vs Mace Brown | Sixth | 18½ out |
| Sunday, September 10 |
| » Lost to Cardinals (75-54), 9-3 | Forbes Field (26-32) | 59-70 | Lost 3 |
| » Starters: Curt Davis vs Bob Klinger | Sixth | 20 out |
| » Lost to Cardinals (76-54), 11-4 | Forbes Field (26-33) | 59-71 | Lost 4 |
| » Starters: Max Lanier vs Joe Bowman | Sixth | 20 out |
| Monday, September 11 |
| » Defeated Cardinals (76-55), 8-6 | Forbes Field (27-33) | 60-71 | |
| » Starters: Mort Cooper vs Max Butcher | Sixth | 19½ out |
| Wednesday, September 13 |
| » Lost to Giants (66-62), 2-0 | Forbes Field (27-34) | 60-72 | |
| » Starters: Harry Gumbert vs Bill Swift | Sixth | 20½ out |
| » Defeated Giants (66-63), 7-4 | Forbes Field (28-34) | 61-72 | |
| » Starters: Cliff Melton vs Bob Klinger | Sixth | 20½ out |
| » Major-league debuts: Frankie Gustine (Pirates) |
| Future Pirate Tom Parsons is born in Lakeville, CT. |
| Thursday, September 14 |
| » Defeated Dodgers (69-63), 4-3 | Forbes Field (29-34) | 62-72 | Won 2 |
| » Starters: Vito Tamulis vs Mace Brown | Sixth | 21½ out |
| » Lost to Dodgers (70-63), 8-4 | Forbes Field (29-35) | 62-73 | |
| » Starters: Tot Pressnell vs Oad Swigart | Sixth | 21½ out |
| Friday, September 15 |
| » Lost to Dodgers (71-63), 4-2 | Forbes Field (29-36) | 62-74 | Lost 2 |
| » Starters: Al Hollingsworth vs Max Butcher | Sixth | 22 out |
| Saturday, September 16 |
| » Lost to Dodgers (72-63), 3-2 | Forbes Field (29-37) | 62-75 | Lost 3 |
| » Starters: Freddie Fitzsimmons vs Joe Bowman | Sixth | 23 out |
| Sunday, September 17 |
| » Lost to Phillies (43-93), 7-3 | Forbes Field (29-38) | 62-76 | Lost 4 |
| » Starters: Syl Johnson vs Johnny Gee | Sixth | 23 out |
| » Defeated Phillies (43-94), 10-1 | Forbes Field (30-38) | 63-76 | |
| » Starters: Ike Pearson vs Bob Klinger | Sixth | 23 out |
| » Major-league debuts: Johnny Gee (Pirates) |
| Monday, September 18 |
| » Defeated Phillies (43-95), 7-4 | Forbes Field (31-38) | 64-76 | Won 2 |
| » Starters: Roy Bruner vs Mace Brown | Sixth | 22½ out |
| Tuesday, September 19 |
| » Defeated Braves (59-79), 5-3 | Forbes Field (32-38) | 65-76 | Won 3 |
| » Starters: Jim Turner vs Max Butcher | Sixth | 21½ out |
| Thursday, September 21 |
| » Defeated Braves (59-80), 6-4 | Forbes Field (33-38) | 66-76 | Won 4 |
| » Starters: Al Veigel vs Johnny Gee | Sixth | 21½ out |
| » Defeated Braves (59-81), 7-0 | Forbes Field (34-38) | 67-76 | Won 5 |
| » Starters: Bill Posedel vs Oad Swigart | Sixth | 21½ out |
| Friday, September 22 |
| » Lost to Reds (89-54), 6-0 | Crosley Field (1-6) | 67-77 | |
| » Starters: Mace Brown vs Junior Thompson | Sixth | 23½ out |
| » Lost to Reds (90-54), 10-9 | Crosley Field (1-7) | 67-78 | Lost 2 |
| » Starters: Bob Klinger vs Whitey Moore | Sixth | 23½ out |
| Saturday, September 23 |
| » Lost to Reds (91-54), 6-5 | Crosley Field (1-8) | 67-79 | Lost 3 |
| » Starters: Max Butcher vs Bucky Walters | Sixth | 25½ out |
| » Lost to Reds (92-54), 6-1 | Crosley Field (1-9) | 67-80 | Lost 4 |
| » Starters: Joe Bowman vs Lee Grissom | Sixth | 25½ out |
| Sunday, September 24 |
| » Lost to Reds (93-54), 11-2 | Crosley Field (1-10) | 67-81 | Lost 5 |
| » Starters: Johnny Gee vs Paul Derringer | Sixth | 26½ out |
| Tuesday, September 26 |
| » Major-league debuts: Eddie Lake (Cardinals) |
| Wednesday, September 27 |
| » Lost to Cubs (81-69), 9-8 | Forbes Field (34-39) | 67-82 | Lost 6 |
| » Starters: Charlie Root vs Oad Swigart | Sixth | 27 out |
| » Lost to Cubs (82-69), 9-5 | Forbes Field (34-40) | 67-83 | Lost 7 |
| » Starters: Vance Page vs Bob Klinger | Sixth | 27 out |
| » Major-league debuts: Joe Schultz and Jr. (Pirates) |
| Friday, September 29 |
| » Lost to Reds (96-56), 2-1 | Forbes Field (34-41) | 67-84 | Lost 8 |
| » Starters: Lee Grissom vs Joe Bowman | Sixth | 28½ out |
| Sunday, October 1 |
| » Lost to Reds (97-56), 9-1 | Forbes Field (34-42) | 67-85 | Lost 9 |
| » Starters: Bucky Walters vs Bill Clemensen | Sixth | 28½ out |
| » Defeated Reds (97-57), 8-0 | Forbes Field (35-42) | 68-85 | |
| » Starters: Whitey Moore vs Ken Heintzelman | Sixth | 28½ out |
| » Major-league debuts: Elmer Riddle (Reds) |
| Wednesday, October 25 |
| Future Pirate Pete Mikkelsen is born in Staten Island, NY. |
| Monday, November 27 |
| Future Pirate Dave Giusti is born in Seneca Falls, NY. |
| Sunday, December 10 |
| Future Pirate Bob Priddy is born in Pittsburgh, PA. |
Game information provided by Retrosheet (www.retrosheet.org) |