| Sunday, February 7 |
| Future Pirate Juan Pizarro is born in Santurce, P.R. |
| Monday, April 12 |
| Former Pirate Ed Morris dies in Pittsburgh, PA at the age of 75. |
| Wednesday, April 14 |
| Former Pirate Ned Hanlon dies in Baltimore, MD at the age of 80. |
| Tuesday, April 20 |
| » Defeated Cubs (0-1), 5-0 | Wrigley Field (1-0) | 1-0 | |
| » Starters: Cy Blanton vs Larry French | Second | ½ out |
| Thursday, April 22 |
| » Defeated Cubs (0-2), 4-2 | Wrigley Field (2-0) | 2-0 | Won 2 |
| » Starters: Ed Brandt vs Bill Lee | First | -- |
| » Major-league debuts: John Bottarini and Joe Marty (Cubs) |
| Friday, April 23 |
| » Defeated Reds (0-3), 4-3 | Forbes Field (1-0) | 3-0 | Won 3 |
| » Starters: Lee Grissom vs Jim Weaver | First | -- |
| Saturday, April 24 |
| » Defeated Reds (0-4), 3-2 | Forbes Field (2-0) | 4-0 | Won 4 |
| » Starters: Bill Hallahan vs Russ Bauers | First | -- |
| Monday, April 26 |
| » Major-league debuts: Lou Fette (Braves) |
| Tuesday, April 27 |
| » Lost to Cardinals (5-1), 3-1 | Sportsman's Park III (0-1) | 4-1 | |
| » Starters: Cy Blanton vs Bob Weiland | Second | ½ out |
| Thursday, April 29 |
| » Defeated Cubs (1-6), 6-5 | Forbes Field (3-0) | 5-1 | |
| » Starters: Clyde Shoun vs Ed Brandt | Second | ½ out |
| Friday, April 30 |
| » Lost to Cubs (2-6), 7-2 | Forbes Field (3-1) | 5-2 | |
| » Starters: Roy Parmelee vs Russ Bauers | Second | 1½ out |
| » Major-league debuts: Jim Tobin (Pirates) |
| Saturday, May 1 |
| » Defeated Reds (1-7), 3-1 | Crosley Field (1-0) | 6-2 | |
| » Starters: Red Lucas vs Bill Hallahan | Second | ½ out |
| Sunday, May 2 |
| » Defeated Reds (1-8), 7-2 | Crosley Field (2-0) | 7-2 | Won 2 |
| » Starters: Joe Bowman vs Lee Grissom | First | -- |
| Tuesday, May 4 |
| » Defeated Dodgers (4-8), 10-3 | Ebbets Field (1-0) | 8-2 | Won 3 |
| » Starters: Ed Brandt vs Roy Henshaw | First | -- |
| Wednesday, May 5 |
| » Defeated Dodgers (4-9), 5-1 | Ebbets Field (2-0) | 9-2 | Won 4 |
| » Starters: Cy Blanton vs Fred Frankhouse | First | -- |
| Thursday, May 6 |
| » Lost to Dodgers (5-9), 9-5 | Ebbets Field (2-1) | 9-3 | |
| » Starters: Red Lucas vs Van Mungo | First | -- |
| Friday, May 7 |
| » Defeated Phillies (6-9), 8-3 | Baker Bowl (1-0) | 10-3 | |
| » Starters: Joe Bowman vs Wayne LaMaster | First | -- |
| Sunday, May 9 |
| » Defeated Braves (7-9), 6-3 | Braves Field (1-0) | 11-3 | Won 2 |
| » Starters: Ed Brandt vs Roy Weir | First | -- |
| Monday, May 10 |
| » Defeated Braves (7-10), 4-1 | Braves Field (2-0) | 12-3 | Won 3 |
| » Starters: Bill Swift vs Lou Fette | First | -- |
| Tuesday, May 11 |
| » Defeated Braves (7-11), 3-0 | Braves Field (3-0) | 13-3 | Won 4 |
| » Starters: Cy Blanton vs Danny MacFayden | First | -- |
| Wednesday, May 12 |
| » Defeated Giants (10-9), 6-5 | Polo Grounds V (1-0) | 14-3 | Won 5 |
| » Starters: Joe Bowman vs Cliff Melton | First | -- |
| Thursday, May 13 |
| » Lost to Giants (11-9), 5-2 | Polo Grounds V (1-1) | 14-4 | |
| » Starters: Ed Brandt vs Carl Hubbell | First | -- |
| Friday, May 14 |
| » Defeated Cardinals (12-8), 14-4 | Forbes Field (4-1) | 15-4 | |
| » Starters: Dizzy Dean vs Red Lucas | First | -- |
| Saturday, May 15 |
| » Lost to Cardinals (13-8), 4-2 | Forbes Field (4-2) | 15-5 | |
| » Starters: Ray Harrell vs Bill Swift | First | -- |
| Sunday, May 16 |
| » Defeated Cardinals (13-9), 2-1 | Forbes Field (5-2) | 16-5 | |
| » Starters: Bob Weiland vs Joe Bowman | First | -- |
| Tuesday, May 18 |
| » Defeated Phillies (9-15), 2-1 | Forbes Field (6-2) | 17-5 | Won 2 |
| » Starters: Hugh Mulcahy vs Cy Blanton | First | -- |
| Wednesday, May 19 |
| » Lost to Phillies (10-15), 5-4 | Forbes Field (6-3) | 17-6 | |
| » Starters: Bucky Walters vs Ed Brandt | First | -- |
| Thursday, May 20 |
| » Defeated Phillies (10-16), 5-2 | Forbes Field (7-3) | 18-6 | |
| » Starters: Wayne LaMaster vs Bill Swift | First | -- |
| Friday, May 21 |
| » Lost to Braves (11-13), 6-3 | Forbes Field (7-4) | 18-7 | |
| » Starters: Danny MacFayden vs Joe Bowman | First | -- |
| Saturday, May 22 |
| » Defeated Braves (11-14), 5-2 | Forbes Field (8-4) | 19-7 | |
| » Starters: Guy Bush vs Red Lucas | First | -- |
| Sunday, May 23 |
| » Lost to Giants (16-13), 6-5 | Forbes Field (8-5) | 19-8 | |
| » Starters: Al Smith vs Cy Blanton | First | -- |
| Monday, May 24 |
| » Lost to Giants (17-13), 4-3 | Forbes Field (8-6) | 19-9 | Lost 2 |
| » Starters: Carl Hubbell vs Ed Brandt | First | -- |
| Tuesday, May 25 |
| » Lost to Dodgers (14-15), 2-1 | Forbes Field (8-7) | 19-10 | Lost 3 |
| » Starters: Van Mungo vs Bill Swift | First | -- |
| Friday, May 28 |
| » Defeated Cardinals (17-14), 10-3 | Sportsman's Park III (1-1) | 20-10 | |
| » Starters: Red Lucas vs Ray Harrell | First | -- |
| Saturday, May 29 |
| » Defeated Cardinals (17-15), 9-4 | Sportsman's Park III (2-1) | 21-10 | Won 2 |
| » Starters: Cy Blanton vs Dizzy Dean | First | -- |
| » Lost to Cardinals (18-15), 2-1 | Sportsman's Park III (2-2) | 21-11 | |
| » Starters: Ed Brandt vs Bob Weiland | First | -- |
| Sunday, May 30 |
| » Defeated Cardinals (18-16), 7-4 | Sportsman's Park III (3-2) | 22-11 | |
| » Starters: Bill Swift vs Ray Harrell | First | -- |
| Monday, May 31 |
| » Lost to Reds (11-24), 8-3 | Crosley Field (2-1) | 22-12 | |
| » Starters: Joe Bowman vs Peaches Davis | First | -- |
| » Defeated Reds (11-25), 7-5 | Crosley Field (3-1) | 23-12 | |
| » Starters: Russ Bauers vs Whitey Moore | First | -- |
| Wednesday, June 2 |
| » Defeated Braves (15-20), 2-0 | Braves Field (4-0) | 24-12 | Won 2 |
| » Starters: Cy Blanton vs Ira Hutchinson | First | -- |
| Thursday, June 3 |
| » Lost to Braves (16-20), 6-0 | Braves Field (4-1) | 24-13 | |
| » Starters: Ed Brandt vs Lou Fette | First | -- |
| Friday, June 4 |
| » Lost to Braves (17-20), 9-1 | Braves Field (4-2) | 24-14 | Lost 2 |
| » Starters: Bill Swift vs Jim Turner | First | -- |
| Saturday, June 5 |
| » Lost to Giants (26-17), 7-5 | Polo Grounds V (1-2) | 24-15 | Lost 3 |
| » Starters: Joe Bowman vs Al Smith | First | -- |
| Sunday, June 6 |
| » Lost to Giants (27-17), 9-5 | Polo Grounds V (1-3) | 24-16 | Lost 4 |
| » Starters: Cy Blanton vs Hal Schumacher | Second | 2 out |
| Monday, June 7 |
| » Lost to Giants (28-17), 5-2 | Polo Grounds V (1-4) | 24-17 | Lost 5 |
| » Starters: Ed Brandt vs Harry Gumbert | Third | 2 out |
| Tuesday, June 8 |
| » Defeated Phillies (16-26), 8-1 | Baker Bowl (2-0) | 25-17 | |
| » Starters: Russ Bauers vs Wayne LaMaster | Second | 1½ out |
| Wednesday, June 9 |
| » Lost to Phillies (17-26), 8-1 | Baker Bowl (2-1) | 25-18 | |
| » Starters: Jim Tobin vs Claude Passeau | Third | 2 out |
| Thursday, June 10 |
| » Lost to Phillies (18-26), 5-4 | Baker Bowl (2-2) | 25-19 | Lost 2 |
| » Starters: Bill Swift vs Bucky Walters | Third | 2½ out |
| Saturday, June 12 |
| » Defeated Dodgers (19-24), 8-3 | Ebbets Field (3-1) | 26-19 | |
| » Starters: Cy Blanton vs Roy Henshaw | Third | 2½ out |
| Sunday, June 13 |
| » Lost to Dodgers (20-24), 6-2 | Ebbets Field (3-2) | 26-20 | |
| » Starters: Russ Bauers vs Van Mungo | Fourth | 3½ out |
| » Lost to Dodgers (21-24), 4-1 | Ebbets Field (3-3) | 26-21 | Lost 2 |
| » Starters: Bill Swift vs Freddie Fitzsimmons | Fourth | 3½ out |
| Tuesday, June 15 |
| » Defeated Giants (31-20), 7-5 | Forbes Field (9-7) | 27-21 | |
| » Starters: Carl Hubbell vs Red Lucas | Fourth | 3 out |
| Wednesday, June 16 |
| » Lost to Giants (32-20), 5-4 | Forbes Field (9-8) | 27-22 | |
| » Starters: Al Smith vs Cy Blanton | Fourth | 3½ out |
| Friday, June 18 |
| » Defeated Dodgers (21-26), 6-4 | Forbes Field (10-8) | 28-22 | |
| » Starters: Van Mungo vs Russ Bauers | Fourth | 3½ out |
| Saturday, June 19 |
| » Lost to Dodgers (22-26), 4-3 | Forbes Field (10-9) | 28-23 | |
| » Starters: Freddie Fitzsimmons vs Bill Swift | Fourth | 4½ out |
| Sunday, June 20 |
| » Defeated Dodgers (22-27), 4-2 | Forbes Field (11-9) | 29-23 | |
| » Starters: Waite Hoyt vs Joe Bowman | Fourth | 4 out |
| » Lost to Dodgers (23-27), 4-2 | Forbes Field (11-10) | 29-24 | |
| » Starters: Fred Frankhouse vs Red Lucas | Fourth | 4 out |
| Tuesday, June 22 |
| » Defeated Braves (20-33), 4-1 | Forbes Field (12-10) | 30-24 | |
| » Starters: Jim Turner vs Cy Blanton | Fourth | 4 out |
| Wednesday, June 23 |
| » Defeated Braves (20-34), 8-5 | Forbes Field (13-10) | 31-24 | Won 2 |
| » Starters: Danny MacFayden vs Russ Bauers | Fourth | 3 out |
| Thursday, June 24 |
| » Lost to Braves (21-34), 9-6 | Forbes Field (13-11) | 31-25 | |
| » Starters: Lou Fette vs Bill Swift | Fourth | 4 out |
| Friday, June 25 |
| » Lost to Phillies (23-34), 10-5 | Forbes Field (13-12) | 31-26 | Lost 2 |
| » Starters: Wayne LaMaster vs Joe Bowman | Fourth | 5 out |
| Saturday, June 26 |
| » Lost to Phillies (24-34), 7-6 | Forbes Field (13-13) | 31-27 | Lost 3 |
| » Starters: Bucky Walters vs Cy Blanton | Fourth | 5 out |
| Sunday, June 27 |
| » Defeated Phillies (24-35), 4-3 | Forbes Field (14-13) | 32-27 | |
| » Starters: Claude Passeau vs Red Lucas | Fourth | 3½ out |
| Tuesday, June 29 |
| » Defeated Reds (24-36), 2-1 | Crosley Field (4-1) | 33-27 | Won 2 |
| » Starters: Joe Bowman vs Paul Derringer | Fourth | 3 out |
| » Defeated Reds (24-37), 13-6 | Crosley Field (5-1) | 34-27 | Won 3 |
| » Starters: Russ Bauers vs Johnny Vander Meer | Fourth | 3 out |
| Wednesday, June 30 |
| » Defeated Reds (24-38), 6-0 | Crosley Field (6-1) | 35-27 | Won 4 |
| » Starters: Cy Blanton vs Lee Grissom | Fourth | 3 out |
| Friday, July 2 |
| » Lost to Cubs (40-24), 8-7 | Wrigley Field (2-1) | 35-28 | |
| » Starters: Red Lucas vs Larry French | Fourth | 4½ out |
| Saturday, July 3 |
| » Lost to Cubs (41-24), 10-5 | Wrigley Field (2-2) | 35-29 | Lost 2 |
| » Starters: Joe Bowman vs Tex Carleton | Fourth | 5½ out |
| Sunday, July 4 |
| » Lost to Cubs (42-24), 8-5 | Wrigley Field (2-3) | 35-30 | Lost 3 |
| » Starters: Cy Blanton vs Curt Davis | Fourth | 5½ out |
| » Defeated Cubs (42-25), 7-6 | Wrigley Field (3-3) | 36-30 | |
| » Starters: Bill Swift vs Roy Parmelee | Fourth | 5½ out |
| Monday, July 5 |
| » Defeated Reds (25-41), 3-1 | Forbes Field (15-13) | 37-30 | Won 2 |
| » Starters: Gene Schott vs Jim Weaver | Third | 5½ out |
| » Defeated Reds (25-42), 5-1 | Forbes Field (16-13) | 38-30 | Won 3 |
| » Starters: Johnny Vander Meer vs Ed Brandt | Third | 5½ out |
| Friday, July 9 |
| » Defeated Cubs (44-26), 13-1 | Forbes Field (17-13) | 39-30 | Won 4 |
| » Starters: Tex Carleton vs Joe Bowman | Third | 4½ out |
| Saturday, July 10 |
| » Lost to Cubs (45-26), 2-0 | Forbes Field (17-14) | 39-31 | |
| » Starters: Larry French vs Cy Blanton | Third | 5½ out |
| Sunday, July 11 |
| » Defeated Cubs (45-27), 3-2 | Forbes Field (18-14) | 40-31 | |
| » Starters: Bill Lee vs Bill Swift | Third | 4½ out |
| Monday, July 12 |
| » Lost to Cardinals (38-33), 6-5 | Forbes Field (18-15) | 40-32 | |
| » Starters: Bob Weiland vs Jim Weaver | Third | 5 out |
| Wednesday, July 14 |
| » Lost to Giants (47-29), 4-2 | Polo Grounds V (1-5) | 40-33 | Lost 2 |
| » Starters: Joe Bowman vs Carl Hubbell | Third | 5½ out |
| Thursday, July 15 |
| Former Pirate Tully Sparks dies in Anniston, AL at the age of 63. |
| Friday, July 16 |
| » Defeated Giants (47-30), 4-3 | Polo Grounds V (2-5) | 41-33 | |
| » Starters: Cy Blanton vs Cliff Melton | Third | 4½ out |
| Saturday, July 17 |
| » Lost to Phillies (30-47), 9-8 | Baker Bowl (2-3) | 41-34 | |
| » Starters: Bill Swift vs Syl Johnson | Third | 5½ out |
| Sunday, July 18 |
| » Lost to Phillies (31-47), 5-2 | Baker Bowl (2-4) | 41-35 | Lost 2 |
| » Starters: Red Lucas vs Claude Passeau | Third | 6½ out |
| » Defeated Phillies (31-48), 6-5 | Baker Bowl (3-4) | 42-35 | |
| » Starters: Ed Brandt vs Wayne LaMaster | Third | 6½ out |
| Monday, July 19 |
| » Defeated Phillies (31-49), 6-5 | Baker Bowl (4-4) | 43-35 | Won 2 |
| » Starters: Joe Bowman vs Bucky Walters | Third | 6½ out |
| Tuesday, July 20 |
| » Lost to Dodgers (33-45), 2-1 | Ebbets Field (3-4) | 43-36 | |
| » Starters: Cy Blanton vs Max Butcher | Third | 7 out |
| Wednesday, July 21 |
| » Lost to Dodgers (34-45), 6-0 | Ebbets Field (3-5) | 43-37 | Lost 2 |
| » Starters: Joe Bowman vs George Jeffcoat | Third | 8½ out |
| Thursday, July 22 |
| » Defeated Dodgers (34-46), 10-1 | Ebbets Field (4-5) | 44-37 | |
| » Starters: Red Lucas vs Roy Henshaw | Third | 7½ out |
| Saturday, July 24 |
| » Lost to Braves (41-44), 9-0 | Braves Field (4-3) | 44-38 | |
| » Starters: Bill Swift vs Jim Turner | Third | 9 out |
| Sunday, July 25 |
| » Lost to Braves (42-44), 5-2 | Braves Field (4-4) | 44-39 | Lost 2 |
| » Starters: Cy Blanton vs Guy Bush | Third | 9½ out |
| » Lost to Braves (43-44), 7-5 | Braves Field (4-5) | 44-40 | Lost 3 |
| » Starters: Ed Brandt vs Lou Fette | Third | 9½ out |
| Tuesday, July 27 |
| » Defeated Phillies (34-54), 4-1 | Forbes Field (19-15) | 45-40 | |
| » Starters: Bucky Walters vs Red Lucas | Third | 9½ out |
| Wednesday, July 28 |
| » Defeated Phillies (34-55), 6-4 | Forbes Field (20-15) | 46-40 | Won 2 |
| » Starters: Claude Passeau vs Jim Weaver | Third | 9½ out |
| Thursday, July 29 |
| » Lost to Phillies (35-55), 11-7 | Forbes Field (20-16) | 46-41 | |
| » Starters: Hugh Mulcahy vs Cy Blanton | Third | 9½ out |
| Friday, July 30 |
| » Defeated Braves (44-47), 1-0 | Forbes Field (21-16) | 47-41 | |
| » Starters: Guy Bush vs Ed Brandt | Third | 9½ out |
| Saturday, July 31 |
| » Lost to Braves (45-47), 9-7 | Forbes Field (21-17) | 47-42 | |
| » Starters: Lou Fette vs Joe Bowman | Third | 10½ out |
| Sunday, August 1 |
| » Defeated Braves (45-48), 8-4 | Forbes Field (22-17) | 48-42 | |
| » Starters: Danny MacFayden vs Red Lucas | Third | 10½ out |
| Tuesday, August 3 |
| » Defeated Dodgers (37-53), 5-4 | Forbes Field (23-17) | 49-42 | Won 2 |
| » Starters: Fred Frankhouse vs Cy Blanton | Third | 10 out |
| » Defeated Dodgers (37-54), 10-4 | Forbes Field (24-17) | 50-42 | Won 3 |
| » Starters: Max Butcher vs Mace Brown | Third | 10 out |
| Wednesday, August 4 |
| » Lost to Dodgers (38-54), 10-7 | Forbes Field (24-18) | 50-43 | |
| » Starters: Freddie Fitzsimmons vs Ed Brandt | Third | 10 out |
| Thursday, August 5 |
| » Lost to Dodgers (39-54), 9-6 | Forbes Field (24-19) | 50-44 | Lost 2 |
| » Starters: Waite Hoyt vs Cy Blanton | Third | 10 out |
| Friday, August 6 |
| » Lost to Giants (57-40), 6-3 | Forbes Field (24-20) | 50-45 | Lost 3 |
| » Starters: Carl Hubbell vs Red Lucas | Fourth | 11½ out |
| Sunday, August 8 |
| » Lost to Giants (58-40), 10-2 | Forbes Field (24-21) | 50-46 | Lost 4 |
| » Starters: Cliff Melton vs Mace Brown | Fourth | 12 out |
| » Defeated Giants (58-41), 3-0 | Forbes Field (25-21) | 51-46 | |
| » Starters: Harry Gumbert vs Jim Weaver | Fourth | 12 out |
| Monday, August 9 |
| Former Pirate Duff Cooley dies in Dallas, TX at the age of 65. |
| Tuesday, August 10 |
| » Defeated Cubs (64-36), 6-5 | Wrigley Field (4-3) | 52-46 | Won 2 |
| » Starters: Cy Blanton vs Larry French | Fourth | 11 out |
| Wednesday, August 11 |
| » Lost to Cubs (65-36), 5-1 | Wrigley Field (4-4) | 52-47 | |
| » Starters: Red Lucas vs Clay Bryant | Fourth | 12 out |
| Thursday, August 12 |
| » Defeated Cubs (65-37), 16-6 | Wrigley Field (5-4) | 53-47 | |
| » Starters: Ed Brandt vs Tex Carleton | Fourth | 11 out |
| Friday, August 13 |
| » Lost to Cardinals (55-44), 4-1 | Sportsman's Park III (3-3) | 53-48 | |
| » Starters: Jim Weaver vs Bob Weiland | Fourth | 12 out |
| Saturday, August 14 |
| » Defeated Cardinals (55-45), 6-5 | Sportsman's Park III (4-3) | 54-48 | |
| » Starters: Joe Bowman vs Ray Harrell | Fourth | 11 out |
| Sunday, August 15 |
| » Defeated Cardinals (55-46), 8-4 | Sportsman's Park III (5-3) | 55-48 | Won 2 |
| » Starters: Cy Blanton vs Lon Warneke | Fourth | 9 out |
| » Defeated Cardinals (55-47), 4-0 | Sportsman's Park III (6-3) | 56-48 | Won 3 |
| » Starters: Russ Bauers vs Si Johnson | Fourth | 9 out |
| Tuesday, August 17 |
| » Defeated Cubs (66-41), 4-2 | Forbes Field (26-21) | 57-48 | Won 4 |
| » Starters: Larry French vs Ed Brandt | Fourth | 8 out |
| Wednesday, August 18 |
| » Defeated Cubs (66-42), 7-6 | Forbes Field (27-21) | 58-48 | Won 5 |
| » Starters: Clay Bryant vs Jim Weaver | Third | 7 out |
| Thursday, August 19 |
| » Lost to Cubs (67-42), 7-3 | Forbes Field (27-22) | 58-49 | |
| » Starters: Curt Davis vs Joe Bowman | Fourth | 8 out |
| Friday, August 20 |
| » Defeated Cardinals (58-48), 7-4 | Forbes Field (28-22) | 59-49 | |
| » Starters: Si Johnson vs Cy Blanton | Fourth | 7 out |
| Saturday, August 21 |
| » Defeated Cardinals (58-49), 7-3 | Forbes Field (29-22) | 60-49 | Won 2 |
| » Starters: Ray Harrell vs Russ Bauers | Third | 7 out |
| Sunday, August 22 |
| » Lost to Cardinals (59-49), 12-0 | Forbes Field (29-23) | 60-50 | |
| » Starters: Bob Weiland vs Red Lucas | Fourth | 9 out |
| » Lost to Cardinals (60-49), 9-7 | Forbes Field (29-24) | 60-51 | Lost 2 |
| » Starters: Dizzy Dean vs Jim Weaver | Fourth | 9 out |
| Tuesday, August 24 |
| » Lost to Braves (55-59), 1-0 | Braves Field (4-6) | 60-52 | Lost 3 |
| » Starters: Cy Blanton vs Jim Turner | Fourth | 9½ out |
| Wednesday, August 25 |
| » Defeated Braves (55-60), 6-0 | Braves Field (5-6) | 61-52 | |
| » Starters: Russ Bauers vs Frank Gabler | Fourth | 8 out |
| Friday, August 27 |
| » Defeated Giants (66-46), 1-0 | Polo Grounds V (3-5) | 62-52 | Won 2 |
| » Starters: Ed Brandt vs Cliff Melton | Fourth | 8 out |
| » Lost to Giants (67-46), 3-2 | Polo Grounds V (3-6) | 62-53 | |
| » Starters: Bill Swift vs Al Smith | Fourth | 8 out |
| Saturday, August 28 |
| » Lost to Giants (68-46), 9-4 | Polo Grounds V (3-7) | 62-54 | Lost 2 |
| » Starters: Cy Blanton vs Carl Hubbell | Fourth | 9 out |
| » Lost to Giants (69-46), 3-1 | Polo Grounds V (3-8) | 62-55 | Lost 3 |
| » Starters: Russ Bauers vs Hal Schumacher | Fourth | 9 out |
| Sunday, August 29 |
| » Lost to Dodgers (47-68), 5-3 | Ebbets Field (4-6) | 62-56 | Lost 4 |
| » Starters: Red Lucas vs Waite Hoyt | Fourth | 10 out |
| » Lost to Dodgers (48-68), 6-3 | Ebbets Field (4-7) | 62-57 | Lost 5 |
| » Starters: Jim Tobin vs Luke Hamlin | Fourth | 10 out |
| Tuesday, August 31 |
| » Lost to Phillies (51-67), 3-0 | Baker Bowl (4-5) | 62-58 | Lost 6 |
| » Starters: Ed Brandt vs Bucky Walters | Fourth | 11 out |
| Wednesday, September 1 |
| » Lost to Phillies (52-67), 5-3 | Baker Bowl (4-6) | 62-59 | Lost 7 |
| » Starters: Russ Bauers vs Claude Passeau | Fourth | 11 out |
| Thursday, September 2 |
| » Defeated Phillies (52-68), 11-8 | Baker Bowl (5-6) | 63-59 | |
| » Starters: Cy Blanton vs Orville Jorgens | Fourth | 11 out |
| Sunday, September 5 |
| » Defeated Cubs (73-50), 7-0 | Wrigley Field (6-4) | 64-59 | Won 2 |
| » Starters: Red Lucas vs Larry French | Fourth | 10 out |
| » Defeated Cubs (73-51), 4-1 | Wrigley Field (7-4) | 65-59 | Won 3 |
| » Starters: Ed Brandt vs Clay Bryant | Fourth | 10 out |
| Monday, September 6 |
| » Lost to Cardinals (66-58), 4-1 | Sportsman's Park III (6-4) | 65-60 | |
| » Starters: Cy Blanton vs Bob Weiland | Fourth | 11 out |
| » Defeated Cardinals (66-59), 5-4 | Sportsman's Park III (7-4) | 66-60 | |
| » Starters: Russ Bauers vs Si Johnson | Fourth | 11 out |
| Wednesday, September 8 |
| » Defeated Reds (50-73), 7-6 | Forbes Field (30-24) | 67-60 | Won 2 |
| » Starters: Peaches Davis vs Joe Bowman | Third | 10½ out |
| » Defeated Reds (50-74), 8-2 | Forbes Field (31-24) | 68-60 | Won 3 |
| » Starters: Jake Mooty vs Jim Tobin | Third | 10½ out |
| Thursday, September 9 |
| » Defeated Reds (50-75), 1-0 | Forbes Field (32-24) | 69-60 | Won 4 |
| » Starters: Gene Schott vs Ed Brandt | Third | 10 out |
| Friday, September 10 |
| » Defeated Reds (50-76), 7-6 | Forbes Field (33-24) | 70-60 | Won 5 |
| » Starters: Al Hollingsworth vs Cy Blanton | Third | 9 out |
| Saturday, September 11 |
| » Lost to Cubs (78-53), 5-4 | Forbes Field (33-25) | 70-61 | |
| » Starters: Curt Davis vs Russ Bauers | Third | 9½ out |
| Sunday, September 12 |
| » Lost to Cubs (79-53), 5-0 | Forbes Field (33-26) | 70-62 | Lost 2 |
| » Starters: Larry French vs Red Lucas | Third | 9½ out |
| » Defeated Cubs (79-54), 4-2 | Forbes Field (34-26) | 71-62 | |
| » Starters: Bill Lee vs Jim Tobin | Third | 9½ out |
| Tuesday, September 14 |
| » Lost to Giants (80-51), 12-2 | Forbes Field (34-27) | 71-63 | |
| » Starters: Carl Hubbell vs Ed Brandt | Third | 9½ out |
| » Defeated Giants (80-52), 6-2 | Forbes Field (35-27) | 72-63 | |
| » Starters: Al Smith vs Cy Blanton | Third | 9½ out |
| Wednesday, September 15 |
| » Lost to Giants (81-52), 7-2 | Forbes Field (35-28) | 72-64 | |
| » Starters: Hal Schumacher vs Russ Bauers | Fourth | 10½ out |
| Thursday, September 16 |
| » Lost to Giants (82-52), 3-0 | Forbes Field (35-29) | 72-65 | Lost 2 |
| » Starters: Cliff Melton vs Jim Tobin | Fourth | 11½ out |
| Friday, September 17 |
| » Defeated Dodgers (61-77), 10-4 | Forbes Field (36-29) | 73-65 | |
| » Starters: Luke Hamlin vs Ed Brandt | Fourth | 11½ out |
| Saturday, September 18 |
| » Defeated Dodgers (61-78), 3-2 | Forbes Field (37-29) | 74-65 | Won 2 |
| » Starters: Freddie Fitzsimmons vs Cy Blanton | Fourth | 10½ out |
| Sunday, September 19 |
| » Lost to Phillies (55-83), 8-1 | Forbes Field (37-30) | 74-66 | |
| » Starters: Hugh Mulcahy vs Red Lucas | Third | 11 out |
| » Defeated Phillies (55-84), 5-1 | Forbes Field (38-30) | 75-66 | |
| » Starters: Syl Johnson vs Russ Bauers | Third | 11 out |
| » Major-league debuts: Bob Allen (Phillies) |
| Tuesday, September 21 |
| » Defeated Braves (71-71), 9-2 | Forbes Field (39-30) | 76-66 | Won 2 |
| » Starters: Lou Fette vs Jim Tobin | Third | 10½ out |
| Wednesday, September 22 |
| » Lost to Braves (72-71), 3-2 | Forbes Field (39-31) | 76-67 | |
| » Starters: Milt Shoffner vs Ed Brandt | Fourth | 11½ out |
| Thursday, September 23 |
| » Lost to Braves (73-71), 2-1 | Forbes Field (39-32) | 76-68 | Lost 2 |
| » Starters: Jim Turner vs Cy Blanton | Fourth | 12½ out |
| Friday, September 24 |
| » Defeated Reds (56-88), 8-2 | Crosley Field (7-1) | 77-68 | |
| » Starters: Russ Bauers vs Gene Schott | Fourth | 12 out |
| Sunday, September 26 |
| » Defeated Reds (56-89), 5-4 | Crosley Field (8-1) | 78-68 | Won 2 |
| » Starters: Jim Tobin vs Paul Derringer | Third | 12 out |
| » Defeated Reds (56-90), 2-1 | Crosley Field (9-1) | 79-68 | Won 3 |
| » Starters: Bill Swift vs Lee Grissom | Third | 12 out |
| Tuesday, September 28 |
| » Defeated Cardinals (79-69), 6-2 | Forbes Field (40-32) | 80-68 | Won 4 |
| » Starters: Si Johnson vs Ed Brandt | Third | 12½ out |
| Wednesday, September 29 |
| » Defeated Cardinals (79-70), 7-5 | Forbes Field (41-32) | 81-68 | Won 5 |
| » Starters: Lon Warneke vs Cy Blanton | Third | 12 out |
| Thursday, September 30 |
| » Defeated Cardinals (79-71), 4-3 | Forbes Field (42-32) | 82-68 | Won 6 |
| » Starters: Bob Weiland vs Russ Bauers | Third | 11½ out |
| Friday, October 1 |
| » Defeated Reds (56-95), 6-3 | Forbes Field (43-32) | 83-68 | Won 7 |
| » Starters: Al Hollingsworth vs Jim Tobin | Third | 10½ out |
| Saturday, October 2 |
| » Defeated Reds (56-96), 4-3 | Forbes Field (44-32) | 84-68 | Won 8 |
| » Starters: Johnny Vander Meer vs Bill Swift | Third | 10½ out |
| Sunday, October 3 |
| » Defeated Reds (56-97), 4-3 | Forbes Field (45-32) | 85-68 | Won 9 |
| » Starters: Ted Kleinhans vs Ken Heintzelman | Third | 10 out |
| » Defeated Reds (56-98), 4-0 | Forbes Field (46-32) | 86-68 | Won 10 |
| » Starters: Peaches Davis vs Jim Weaver | Third | 10 out |
| » Major-league debuts: Ken Heintzelman (Pirates) |
| Monday, October 18 |
| Former Pirate Charlie Starr dies in Pasadena, CA at the age of 60. |
| Sunday, November 14 |
| Former Pirate Jack O'Connor dies in St.Louis, MO at the age of 69. |
| Saturday, November 27 |
| Future Pirate Bill Short is born in Kingston, NY. |
| Wednesday, December 8 |
| Future Pirate Jim Pagliaroni is born in Dearborn, MI. |
Game information provided by Retrosheet (www.retrosheet.org) |
