| Monday, January 20 |
| Future Pirate Jesse Gonder is born in Monticello, AR. |
| Friday, February 21 |
| Future Pirate Ted Savage is born in Venice, IL. |
| Monday, March 2 |
| Future Pirate Don Schwall is born in Wilkes-Barre, PA. |
| Friday, March 6 |
| Former Pirate Watty Lee dies in Washington, DC at the age of 57. |
| Thursday, March 26 |
| Former Pirate Dan Costello dies in Pittsburgh, PA at the age of 45. |
| Tuesday, April 14 |
| » Defeated Reds (0-1), 8-6 | Crosley Field (1-0) | 1-0 | |
| » Starters: Cy Blanton vs Paul Derringer | First | -- |
| » Major-league debuts: George McQuinn (Reds) |
| Wednesday, April 15 |
| » Defeated Reds (0-2), 7-6 | Crosley Field (2-0) | 2-0 | Won 2 |
| » Starters: Bill Swift vs Gene Schott | First | -- |
| » Major-league debuts: Lee Handley (Reds) |
| Thursday, April 16 |
| » Lost to Reds (1-2), 7-4 | Crosley Field (2-1) | 2-1 | |
| » Starters: Jim Weaver vs Al Hollingsworth | Second | 1 out |
| » Major-league debuts: Johnny Dickshot (Pirates) |
| Saturday, April 18 |
| Future Pirate Larry Foss is born in Castleton, KS. |
| Sunday, April 19 |
| » Lost to Cardinals (2-2), 7-3 | Forbes Field (0-1) | 2-2 | Lost 2 |
| » Starters: Bill Hallahan vs Red Lucas | Second | 2½ out |
| Monday, April 20 |
| » Defeated Cubs (3-4), 9-8 | Forbes Field (1-1) | 3-2 | |
| » Starters: Roy Henshaw vs Cy Blanton | Second | 1½ out |
| Thursday, April 23 |
| » Lost to Cubs (4-4), 2-1 | Wrigley Field (0-1) | 3-3 | |
| » Starters: Ralph Birkofer vs Larry French | Third | 2½ out |
| Friday, April 24 |
| » Lost to Cubs (5-4), 6-1 | Wrigley Field (0-2) | 3-4 | Lost 2 |
| » Starters: Cy Blanton vs Lon Warneke | Fifth | 2½ out |
| Saturday, April 25 |
| » Defeated Cardinals (3-5), 12-5 | Sportsman's Park III (1-0) | 4-4 | |
| » Starters: Jim Weaver vs Bill Hallahan | Third | 2½ out |
| » Major-league debuts: Nels Potter (Cardinals) |
| Sunday, April 26 |
| » Lost to Cardinals (4-5), 3-2 | Sportsman's Park III (1-1) | 4-5 | |
| » Starters: Bill Swift vs Dizzy Dean | Fifth | 3 out |
| Tuesday, April 28 |
| » Lost to Phillies (7-7), 9-7 | Forbes Field (1-2) | 4-6 | Lost 2 |
| » Starters: Tom Zachary vs Cy Blanton | Sixth | 3½ out |
| Wednesday, April 29 |
| » Defeated Phillies (7-8), 10-9 | Forbes Field (2-2) | 5-6 | |
| » Starters: Curt Davis vs Ralph Birkofer | Sixth | 2½ out |
| Thursday, April 30 |
| » Defeated Phillies (7-9), 6-5 | Forbes Field (3-2) | 6-6 | Won 2 |
| » Starters: Orville Jorgens vs Jim Weaver | Fourth | 1½ out |
| Friday, May 1 |
| » Lost to Braves (6-7), 6-4 | Forbes Field (3-3) | 6-7 | |
| » Starters: Wayne Osborne vs Bill Swift | Fifth | 2 out |
| Saturday, May 2 |
| » Defeated Braves (6-8), 6-1 | Forbes Field (4-3) | 7-7 | |
| » Starters: Tiny Chaplin vs Jack Tising | Fourth | 1½ out |
| Sunday, May 3 |
| » Defeated Dodgers (6-11), 6-5 | Forbes Field (5-3) | 8-7 | Won 2 |
| » Starters: Van Mungo vs Ralph Birkofer | Fourth | 1½ out |
| Tuesday, May 5 |
| » Defeated Dodgers (6-12), 4-0 | Forbes Field (6-3) | 9-7 | Won 3 |
| » Starters: Watty Clark vs Jim Weaver | Second | ½ out |
| Wednesday, May 6 |
| » Lost to Giants (10-8), 6-5 | Forbes Field (6-4) | 9-8 | |
| » Starters: Al Smith vs Jack Tising | Fourth | 1½ out |
| Thursday, May 7 |
| » Defeated Giants (10-9), 6-2 | Forbes Field (7-4) | 10-8 | |
| » Starters: Slick Castleman vs Ralph Birkofer | Third | 1½ out |
| Friday, May 8 |
| » Defeated Reds (10-12), 9-6 | Forbes Field (8-4) | 11-8 | Won 2 |
| » Starters: Lee Stine vs Bill Swift | Third | 1 out |
| Saturday, May 9 |
| » Defeated Reds (10-13), 10-6 | Forbes Field (9-4) | 12-8 | Won 3 |
| » Starters: Emmett Nelson vs Jim Weaver | Second | 1 out |
| Sunday, May 10 |
| » Lost to Reds (11-13), 6-0 | Forbes Field (9-5) | 12-9 | |
| » Starters: Paul Derringer vs Jack Tising | Second | 2 out |
| Tuesday, May 12 |
| » Tied Braves, 6-6 | Braves Field (0-0) | 12-9 | |
| » Starters: Cy Blanton vs Jim McCloskey | Second | 1½ out |
| Wednesday, May 13 |
| » Lost to Braves (11-12), 4-3 | Braves Field (0-1) | 12-10 | Lost 2 |
| » Starters: Bill Swift vs Johnny Lanning | Third | 2 out |
| Thursday, May 14 |
| » Defeated Braves (11-13), 5-2 | Braves Field (1-1) | 13-10 | |
| » Starters: Jack Tising vs Ray Benge | Third | 2 out |
| Friday, May 15 |
| » Defeated Dodgers (10-16), 6-2 | Ebbets Field (1-0) | 14-10 | Won 2 |
| » Starters: Jim Weaver vs Van Mungo | Third | 1 out |
| Saturday, May 16 |
| » Lost to Dodgers (11-16), 3-0 | Ebbets Field (1-1) | 14-11 | |
| » Starters: Cy Blanton vs Watty Clark | Third | 2 out |
| Sunday, May 17 |
| » Lost to Giants (17-10), 8-6 | Polo Grounds V (0-1) | 14-12 | Lost 2 |
| » Starters: Ralph Birkofer vs Al Smith | Third | 3 out |
| Monday, May 18 |
| » Lost to Giants (18-10), 4-2 | Polo Grounds V (0-2) | 14-13 | Lost 3 |
| » Starters: Jack Tising vs Carl Hubbell | Third | 4 out |
| Wednesday, May 20 |
| » Defeated Phillies (12-20), 9-3 | Baker Bowl (1-0) | 15-13 | |
| » Starters: Jim Weaver vs Tom Zachary | Third | 3½ out |
| Thursday, May 21 |
| » Defeated Phillies (12-21), 7-4 | Baker Bowl (2-0) | 16-13 | Won 2 |
| » Starters: Cy Blanton vs Syl Johnson | Third | 3 out |
| Friday, May 22 |
| » Lost to Cardinals (20-10), 11-4 | Forbes Field (9-6) | 16-14 | |
| » Starters: Dizzy Dean vs Jack Tising | Third | 4 out |
| Former Pirate Kaiser Wilhelm dies in Rochester, NY at the age of 63. |
| Saturday, May 23 |
| » Lost to Reds (16-17), 4-3 | Crosley Field (2-2) | 16-15 | Lost 2 |
| » Starters: Bill Swift vs Paul Derringer | Third | 4 out |
| Sunday, May 24 |
| » Lost to Reds (17-17), 12-1 | Crosley Field (2-3) | 16-16 | Lost 3 |
| » Starters: Jim Weaver vs Al Hollingsworth | Third | 5 out |
| Monday, May 25 |
| » Defeated Reds (17-18), 9-2 | Crosley Field (3-3) | 17-16 | |
| » Starters: Red Lucas vs Gene Schott | Third | 5 out |
| Tuesday, May 26 |
| » Lost to Cardinals (23-11), 6-2 | Sportsman's Park III (1-2) | 17-17 | |
| » Starters: Cy Blanton vs Dizzy Dean | Fourth | 7 out |
| » Lost to Cardinals (24-11), 6-2 | Sportsman's Park III (1-3) | 17-18 | Lost 2 |
| » Starters: Ralph Birkofer vs Jim Winford | Fourth | 7 out |
| Wednesday, May 27 |
| » Defeated Cardinals (24-12), 11-2 | Sportsman's Park III (2-3) | 18-18 | |
| » Starters: Bill Swift vs Bill Hallahan | Second | 6 out |
| Thursday, May 28 |
| » Defeated Cardinals (24-13), 7-2 | Sportsman's Park III (3-3) | 19-18 | Won 2 |
| » Starters: Jim Weaver vs Bill Walker | Third | 5 out |
| Friday, May 29 |
| » Lost to Cardinals (25-13), 9-7 | Sportsman's Park III (3-4) | 19-19 | |
| » Starters: Mace Brown vs Roy Parmelee | Fourth | 6 out |
| Saturday, May 30 |
| » Defeated Cubs (19-19), 7-5 | Wrigley Field (1-2) | 20-19 | |
| » Starters: Red Lucas vs Bill Lee | Third | 5 out |
| » Defeated Cubs (19-20), 11-7 | Wrigley Field (2-2) | 21-19 | Won 2 |
| » Starters: Ralph Birkofer vs Roy Henshaw | Third | 5 out |
| Sunday, May 31 |
| » Lost to Cubs (20-20), 8-7 | Wrigley Field (2-3) | 21-20 | |
| » Starters: Cy Blanton vs Larry French | Third | 6 out |
| Tuesday, June 2 |
| » Defeated Braves (20-24), 5-4 | Forbes Field (10-6) | 22-20 | |
| » Starters: Tiny Chaplin vs Jim Weaver | Third | 6 out |
| Wednesday, June 3 |
| » Lost to Braves (21-24), 4-3 | Forbes Field (10-7) | 22-21 | |
| » Starters: Danny MacFayden vs Bill Swift | Third | 7 out |
| Thursday, June 4 |
| » Defeated Braves (21-25), 7-5 | Forbes Field (11-7) | 23-21 | |
| » Starters: Johnny Lanning vs Cy Blanton | Third | 6 out |
| Friday, June 5 |
| » Defeated Phillies (18-29), 14-8 | Forbes Field (12-7) | 24-21 | Won 2 |
| » Starters: Joe Bowman vs Ralph Birkofer | Third | 6 out |
| Saturday, June 6 |
| » Lost to Phillies (19-29), 5-1 | Forbes Field (12-8) | 24-22 | |
| » Starters: Orville Jorgens vs Jim Weaver | Fourth | 5½ out |
| Sunday, June 7 |
| » Defeated Phillies (19-30), 6-2 | Forbes Field (13-8) | 25-22 | |
| » Starters: Euel Moore vs Bill Swift | Fourth | 5½ out |
| Monday, June 8 |
| » Defeated Dodgers (19-31), 2-1 | Forbes Field (14-8) | 26-22 | Won 2 |
| » Starters: Ed Brandt vs Cy Blanton | Fourth | 5 out |
| Tuesday, June 9 |
| » Defeated Dodgers (19-32), 4-1 | Forbes Field (15-8) | 27-22 | Won 3 |
| » Starters: George Earnshaw vs Jim Weaver | Second | 4½ out |
| » Defeated Dodgers (19-33), 7-5 | Forbes Field (16-8) | 28-22 | Won 4 |
| » Starters: Van Mungo vs Johnny Welch | Second | 4½ out |
| Wednesday, June 10 |
| » Defeated Dodgers (19-34), 6-3 | Forbes Field (17-8) | 29-22 | Won 5 |
| » Starters: Watty Clark vs Red Lucas | Second | 4 out |
| Friday, June 12 |
| » Defeated Giants (28-23), 3-2 | Forbes Field (18-8) | 30-22 | Won 6 |
| » Starters: Carl Hubbell vs Bill Swift | Third | 3½ out |
| Saturday, June 13 |
| » Defeated Giants (28-24), 6-2 | Forbes Field (19-8) | 31-22 | Won 7 |
| » Starters: Al Smith vs Cy Blanton | Third | 3½ out |
| Sunday, June 14 |
| » Lost to Giants (29-24), 8-0 | Forbes Field (19-9) | 31-23 | |
| » Starters: Hal Schumacher vs Jim Weaver | Third | 4½ out |
| Tuesday, June 16 |
| » Defeated Dodgers (20-38), 9-2 | Ebbets Field (2-1) | 32-23 | |
| » Starters: Red Lucas vs Van Mungo | Third | 3½ out |
| Wednesday, June 17 |
| » Defeated Dodgers (20-39), 14-5 | Ebbets Field (3-1) | 33-23 | Won 2 |
| » Starters: Bill Swift vs Tom Baker | Third | 3 out |
| Saturday, June 20 |
| » Defeated Phillies (20-39), 6-0 | Baker Bowl (3-0) | 34-23 | Won 3 |
| » Starters: Cy Blanton vs Joe Bowman | Third | 2½ out |
| » Lost to Phillies (21-39), 2-1 | Baker Bowl (3-1) | 34-24 | |
| » Starters: Jim Weaver vs Orville Jorgens | Third | 2½ out |
| Sunday, June 21 |
| » Defeated Phillies (21-40), 7-6 | Baker Bowl (4-1) | 35-24 | |
| » Starters: Red Lucas vs Fabian Kowalik | Third | 1½ out |
| Monday, June 22 |
| » Lost to Giants (33-26), 11-5 | Polo Grounds V (0-3) | 35-25 | |
| » Starters: Bill Swift vs Hal Schumacher | Third | 2½ out |
| Tuesday, June 23 |
| » Lost to Giants (34-26), 3-2 | Polo Grounds V (0-4) | 35-26 | Lost 2 |
| » Starters: Mace Brown vs Harry Gumbert | Third | 3½ out |
| Wednesday, June 24 |
| » Lost to Giants (35-26), 4-3 | Polo Grounds V (0-5) | 35-27 | Lost 3 |
| » Starters: Cy Blanton vs Carl Hubbell | Third | 3½ out |
| » Defeated Giants (35-27), 4-1 | Polo Grounds V (1-5) | 36-27 | |
| » Starters: Jim Weaver vs Freddie Fitzsimmons | Third | 3½ out |
| Thursday, June 25 |
| » Lost to Giants (36-27), 5-4 | Polo Grounds V (1-6) | 36-28 | |
| » Starters: Bill Swift vs Al Smith | Fourth | 4 out |
| Friday, June 26 |
| » Defeated Braves (30-37), 2-1 | Braves Field (2-1) | 37-28 | |
| » Starters: Red Lucas vs Danny MacFayden | Third | 4 out |
| Sunday, June 28 |
| » Defeated Braves (30-38), 11-2 | Braves Field (3-1) | 38-28 | Won 2 |
| » Starters: Cy Blanton vs Ray Benge | Third | 4 out |
| » Lost to Braves (31-38), 6-4 | Braves Field (3-2) | 38-29 | |
| » Starters: Jim Weaver vs Ben Cantwell | Third | 4 out |
| Tuesday, June 30 |
| » Lost to Cardinals (42-25), 2-1 | Forbes Field (19-10) | 38-30 | Lost 2 |
| » Starters: Jesse Haines vs Mace Brown | Third | 5½ out |
| » Lost to Cardinals (43-25), 4-3 | Forbes Field (19-11) | 38-31 | Lost 3 |
| » Starters: Jim Winford vs Ralph Birkofer | Third | 5½ out |
| Wednesday, July 1 |
| » Defeated Cardinals (43-26), 9-4 | Forbes Field (20-11) | 39-31 | |
| » Starters: Bill Walker vs Red Lucas | Third | 4½ out |
| Thursday, July 2 |
| » Lost to Cardinals (44-26), 4-2 | Forbes Field (20-12) | 39-32 | |
| » Starters: Dizzy Dean vs Jim Weaver | Third | 5½ out |
| Saturday, July 4 |
| » Lost to Cubs (43-25), 3-2 | Forbes Field (20-13) | 39-33 | Lost 2 |
| » Starters: Larry French vs Cy Blanton | Fourth | 5 out |
| » Defeated Cubs (43-26), 7-4 | Forbes Field (21-13) | 40-33 | |
| » Starters: Bill Lee vs Mace Brown | Fourth | 5 out |
| Sunday, July 5 |
| » Defeated Cubs (43-27), 4-2 | Forbes Field (22-13) | 41-33 | Won 2 |
| » Starters: Lon Warneke vs Bill Swift | Third | 5 out |
| Thursday, July 9 |
| » Defeated Phillies (27-47), 16-5 | Forbes Field (23-13) | 42-33 | Won 3 |
| » Starters: Fabian Kowalik vs Red Lucas | Third | 5 out |
| Friday, July 10 |
| » Lost to Phillies (28-47), 9-6 | Forbes Field (23-14) | 42-34 | |
| » Starters: Claude Passeau vs Jim Weaver | Third | 6 out |
| Saturday, July 11 |
| » Major-league debuts: Peaches Davis (Reds) |
| Sunday, July 12 |
| » Lost to Braves (38-41), 6-2 | Forbes Field (23-15) | 42-35 | Lost 2 |
| » Starters: Johnny Lanning vs Cy Blanton | Third | 6 out |
| Monday, July 13 |
| » Lost to Braves (39-41), 4-1 | Forbes Field (23-16) | 42-36 | Lost 3 |
| » Starters: Tiny Chaplin vs Bill Swift | Third | 6½ out |
| Tuesday, July 14 |
| » Defeated Braves (39-42), 2-1 | Forbes Field (24-16) | 43-36 | |
| » Starters: Danny MacFayden vs Mace Brown | Third | 6½ out |
| Wednesday, July 15 |
| » Defeated Giants (40-41), 5-4 | Forbes Field (25-16) | 44-36 | Won 2 |
| » Starters: Slick Castleman vs Red Lucas | Third | 7 out |
| » Lost to Giants (41-41), 14-4 | Forbes Field (25-17) | 44-37 | |
| » Starters: Al Smith vs Jim Weaver | Third | 7 out |
| Thursday, July 16 |
| » Lost to Giants (42-41), 7-6 | Forbes Field (25-18) | 44-38 | Lost 2 |
| » Starters: Harry Gumbert vs Cy Blanton | Third | 8 out |
| Friday, July 17 |
| » Lost to Giants (43-41), 6-0 | Forbes Field (25-19) | 44-39 | Lost 3 |
| » Starters: Carl Hubbell vs Bill Swift | Third | 8 out |
| Saturday, July 18 |
| » Lost to Dodgers (29-55), 6-5 | Forbes Field (25-20) | 44-40 | Lost 4 |
| » Starters: Fred Frankhouse vs Red Lucas | Third | 9 out |
| Sunday, July 19 |
| » Lost to Dodgers (30-55), 4-2 | Forbes Field (25-21) | 44-41 | Lost 5 |
| » Starters: Watty Clark vs Cy Blanton | Third | 9½ out |
| Tuesday, July 21 |
| » Defeated Phillies (33-53), 17-6 | Baker Bowl (5-1) | 45-41 | |
| » Starters: Ralph Birkofer vs Orville Jorgens | Fourth | 9½ out |
| Wednesday, July 22 |
| » Lost to Phillies (34-53), 16-4 | Baker Bowl (5-2) | 45-42 | |
| » Starters: Mace Brown vs Joe Bowman | Fifth | 10½ out |
| Thursday, July 23 |
| » Defeated Phillies (34-54), 10-1 | Baker Bowl (6-2) | 46-42 | |
| » Starters: Cy Blanton vs Claude Passeau | Third | 9½ out |
| Saturday, July 25 |
| » Defeated Dodgers (31-58), 7-4 | Ebbets Field (4-1) | 47-42 | Won 2 |
| » Starters: Bill Swift vs Watty Clark | Third | 9½ out |
| Sunday, July 26 |
| » Lost to Dodgers (32-58), 1-0 | Ebbets Field (4-2) | 47-43 | |
| » Starters: Red Lucas vs Van Mungo | Fourth | 10½ out |
| » Lost to Dodgers (33-58), 4-3 | Ebbets Field (4-3) | 47-44 | Lost 2 |
| » Starters: Jim Weaver vs Ed Brandt | Fourth | 10½ out |
| Monday, July 27 |
| » Lost to Dodgers (34-58), 6-3 | Ebbets Field (4-4) | 47-45 | Lost 3 |
| » Starters: Cy Blanton vs Fred Frankhouse | Fourth | 11 out |
| Tuesday, July 28 |
| » Defeated Dodgers (34-59), 9-8 | Ebbets Field (5-4) | 48-45 | |
| » Starters: Ralph Birkofer vs Tom Baker | Fourth | 10 out |
| Wednesday, July 29 |
| » Lost to Braves (45-49), 4-1 | Braves Field (3-3) | 48-46 | |
| » Starters: Bill Swift vs Danny MacFayden | Fourth | 9½ out |
| » Defeated Braves (45-50), 10-4 | Braves Field (4-3) | 49-46 | |
| » Starters: Jim Weaver vs Bob Smith | Fourth | 9½ out |
| Thursday, July 30 |
| » Defeated Braves (45-51), 5-3 | Braves Field (5-3) | 50-46 | Won 2 |
| » Starters: Cy Blanton vs Guy Bush | Fourth | 8½ out |
| Friday, July 31 |
| » Defeated Braves (45-52), 10-5 | Braves Field (6-3) | 51-46 | Won 3 |
| » Starters: Jim Weaver vs Tiny Chaplin | Fourth | 8½ out |
| Future Pirate Vic Davalillo is born in Cabimas, Venezuela. |
| Saturday, August 1 |
| » Lost to Giants (54-45), 6-0 | Polo Grounds V (1-7) | 51-47 | |
| » Starters: Cy Blanton vs Al Smith | Fourth | 9½ out |
| Sunday, August 2 |
| » Lost to Giants (55-45), 3-2 | Polo Grounds V (1-8) | 51-48 | Lost 2 |
| » Starters: Bill Swift vs Carl Hubbell | Fourth | 9 out |
| Wednesday, August 5 |
| » Lost to Reds (49-50), 6-4 | Crosley Field (3-4) | 51-49 | Lost 3 |
| » Starters: Jim Weaver vs Peaches Davis | Fourth | 10½ out |
| Friday, August 7 |
| » Defeated Reds (49-51), 5-1 | Crosley Field (4-4) | 52-49 | |
| » Starters: Red Lucas vs Al Hollingsworth | Fourth | 9½ out |
| » Defeated Reds (49-52), 1-0 | Crosley Field (5-4) | 53-49 | Won 2 |
| » Starters: Cy Blanton vs Bill Hallahan | Fourth | 9½ out |
| Saturday, August 8 |
| » Lost to Cubs (61-41), 3-2 | Wrigley Field (2-4) | 53-50 | |
| » Starters: Bill Swift vs Larry French | Fourth | 10½ out |
| Sunday, August 9 |
| » Lost to Cubs (62-41), 9-2 | Wrigley Field (2-5) | 53-51 | Lost 2 |
| » Starters: Mace Brown vs Bill Lee | Fourth | 10½ out |
| » Lost to Cubs (63-41), 10-1 | Wrigley Field (2-6) | 53-52 | Lost 3 |
| » Starters: Ralph Birkofer vs Curt Davis | Fourth | 10½ out |
| Tuesday, August 11 |
| » Defeated Reds (51-54), 6-3 | Forbes Field (26-21) | 54-52 | |
| » Starters: Paul Derringer vs Red Lucas | Fourth | 10½ out |
| » Lost to Reds (52-54), 7-3 | Forbes Field (26-22) | 54-53 | |
| » Starters: Bill Hallahan vs Cy Blanton | Fourth | 10½ out |
| Wednesday, August 12 |
| » Defeated Reds (52-55), 6-1 | Forbes Field (27-22) | 55-53 | |
| » Starters: Gene Schott vs Bill Swift | Fourth | 10½ out |
| Thursday, August 13 |
| » Defeated Reds (52-56), 5-4 | Forbes Field (28-22) | 56-53 | Won 2 |
| » Starters: Al Hollingsworth vs Waite Hoyt | Fourth | 10 out |
| Saturday, August 15 |
| » Defeated Cardinals (66-44), 7-1 | Forbes Field (29-22) | 57-53 | Won 3 |
| » Starters: Jesse Haines vs Jim Weaver | Fourth | 9 out |
| Sunday, August 16 |
| » Lost to Cardinals (67-44), 4-3 | Forbes Field (29-23) | 57-54 | |
| » Starters: Jim Winford vs Red Lucas | Fourth | 11 out |
| » Lost to Cardinals (68-44), 7-2 | Forbes Field (29-24) | 57-55 | Lost 2 |
| » Starters: Dizzy Dean vs Bill Swift | Fourth | 11 out |
| Tuesday, August 18 |
| » Lost to Cubs (66-46), 5-4 | Forbes Field (29-25) | 57-56 | Lost 3 |
| » Starters: Larry French vs Cy Blanton | Fourth | 11½ out |
| » Defeated Cubs (66-47), 3-1 | Forbes Field (30-25) | 58-56 | |
| » Starters: Bill Lee vs Waite Hoyt | Fourth | 11½ out |
| Wednesday, August 19 |
| » Defeated Cubs (66-48), 5-4 | Forbes Field (31-25) | 59-56 | Won 2 |
| » Starters: Roy Henshaw vs Jim Weaver | Fourth | 11 out |
| Thursday, August 20 |
| » Defeated Cubs (66-49), 8-7 | Forbes Field (32-25) | 60-56 | Won 3 |
| » Starters: Tex Carleton vs Russ Bauers | Fourth | 11 out |
| » Major-league debuts: Russ Bauers (Pirates) |
| Friday, August 21 |
| » Defeated Cardinals (70-45), 5-4 | Sportsman's Park III (4-4) | 61-56 | Won 4 |
| » Starters: Red Lucas vs Jesse Haines | Fourth | 10 out |
| Saturday, August 22 |
| » Lost to Cardinals (71-45), 4-3 | Sportsman's Park III (4-5) | 61-57 | |
| » Starters: Bill Swift vs Jim Winford | Fourth | 11 out |
| Sunday, August 23 |
| » Lost to Cardinals (72-45), 7-3 | Sportsman's Park III (4-6) | 61-58 | Lost 2 |
| » Starters: Jim Weaver vs Si Johnson | Fourth | 12 out |
| » Tied Cardinals, 6-6 | Sportsman's Park III (4-6) | 61-58 | |
| » Starters: Waite Hoyt vs George Earnshaw | Fourth | 12 out |
| Monday, August 24 |
| » Defeated Cardinals (72-46), 17-5 | Sportsman's Park III (5-6) | 62-58 | |
| » Starters: Ralph Birkofer vs Paul Dean | Third | 11 out |
| Tuesday, August 25 |
| » Lost to Dodgers (48-70), 4-1 | Forbes Field (32-26) | 62-59 | |
| » Starters: Max Butcher vs Red Lucas | Fourth | 12 out |
| Wednesday, August 26 |
| » Lost to Dodgers (49-70), 10-3 | Forbes Field (32-27) | 62-60 | Lost 2 |
| » Starters: Ed Brandt vs Bill Swift | Fourth | 13 out |
| Thursday, August 27 |
| » Defeated Dodgers (49-71), 6-3 | Forbes Field (33-27) | 63-60 | |
| » Starters: Van Mungo vs Jim Weaver | Third | 12½ out |
| Friday, August 28 |
| » Lost to Giants (75-46), 7-2 | Forbes Field (33-28) | 63-61 | |
| » Starters: Freddie Fitzsimmons vs Waite Hoyt | Fourth | 13½ out |
| Saturday, August 29 |
| » Defeated Giants (75-47), 7-4 | Forbes Field (34-28) | 64-61 | |
| » Starters: Al Smith vs Red Lucas | Third | 12½ out |
| Sunday, August 30 |
| » Defeated Braves (58-66), 4-2 | Forbes Field (35-28) | 65-61 | Won 2 |
| » Starters: Tiny Chaplin vs Bill Swift | Fourth | 12½ out |
| » Defeated Braves (58-67), 3-1 | Forbes Field (36-28) | 66-61 | Won 3 |
| » Starters: Bob Smith vs Cy Blanton | Fourth | 12½ out |
| Tuesday, September 1 |
| » Defeated Braves (58-68), 3-1 | Forbes Field (37-28) | 67-61 | Won 4 |
| » Starters: Danny MacFayden vs Jim Weaver | Fourth | 12 out |
| Thursday, September 3 |
| » Lost to Phillies (43-83), 4-3 | Forbes Field (37-29) | 67-62 | |
| » Starters: Joe Bowman vs Red Lucas | Fourth | 12 out |
| » Defeated Phillies (43-84), 5-1 | Forbes Field (38-29) | 68-62 | |
| » Starters: Claude Passeau vs Waite Hoyt | Fourth | 12 out |
| Friday, September 4 |
| » Lost to Cubs (76-55), 8-0 | Forbes Field (38-30) | 68-63 | |
| » Starters: Larry French vs Bill Swift | Fourth | 12½ out |
| Saturday, September 5 |
| » Defeated Cubs (76-56), 1-0 | Forbes Field (39-30) | 69-63 | |
| » Starters: Roy Henshaw vs Cy Blanton | Fourth | 11 out |
| Future Pirate Bill Mazeroski is born in Wheeling, WV. |
| Sunday, September 6 |
| » Defeated Cubs (76-57), 5-4 | Forbes Field (40-30) | 70-63 | Won 2 |
| » Starters: Curt Davis vs Jim Weaver | Fourth | 10 out |
| Monday, September 7 |
| » Defeated Cardinals (76-56), 4-1 | Forbes Field (41-30) | 71-63 | Won 3 |
| » Starters: Dizzy Dean vs Waite Hoyt | Fourth | 10 out |
| » Defeated Cardinals (76-57), 14-1 | Forbes Field (42-30) | 72-63 | Won 4 |
| » Starters: Roy Parmelee vs Mace Brown | Fourth | 10 out |
| Wednesday, September 9 |
| » Lost to Dodgers (56-77), 8-7 | Ebbets Field (5-5) | 72-64 | |
| » Starters: Red Lucas vs Ed Brandt | Fourth | 10½ out |
| Thursday, September 10 |
| » Defeated Dodgers (56-78), 11-5 | Ebbets Field (6-5) | 73-64 | |
| » Starters: Bill Swift vs Fred Frankhouse | Fourth | 9½ out |
| Friday, September 11 |
| » Defeated Braves (62-74), 10-3 | Braves Field (7-3) | 74-64 | Won 2 |
| » Starters: Cy Blanton vs Roy Weir | Fourth | 9½ out |
| Saturday, September 12 |
| » Lost to Braves (63-74), 3-2 | Braves Field (7-4) | 74-65 | |
| » Starters: Waite Hoyt vs Guy Bush | Fourth | 9½ out |
| Sunday, September 13 |
| » Defeated Phillies (48-91), 5-3 | Baker Bowl (7-2) | 75-65 | |
| » Starters: Jim Weaver vs Pete Sivess | Fourth | 9½ out |
| » Lost to Phillies (49-91), 4-3 | Baker Bowl (7-3) | 75-66 | |
| » Starters: Mace Brown vs Orville Jorgens | Fourth | 9½ out |
| Monday, September 14 |
| » Defeated Phillies (49-92), 11-4 | Baker Bowl (8-3) | 76-66 | |
| » Starters: Bill Swift vs Ray Benge | Fourth | 9 out |
| » Defeated Phillies (49-93), 6-5 | Baker Bowl (9-3) | 77-66 | Won 2 |
| » Starters: Red Lucas vs Elmer Burkart | Fourth | 9 out |
| » Major-league debuts: Morrie Arnovich (Phillies) |
| Wednesday, September 16 |
| » Lost to Giants (86-56), 2-1 | Polo Grounds V (1-9) | 77-67 | |
| » Starters: Cy Blanton vs Al Smith | Fourth | 9 out |
| » Defeated Giants (86-57), 4-3 | Polo Grounds V (2-9) | 78-67 | |
| » Starters: Waite Hoyt vs Hal Schumacher | Fourth | 9 out |
| Thursday, September 17 |
| » Defeated Reds (71-74), 14-10 | Forbes Field (43-30) | 79-67 | Won 2 |
| » Starters: Paul Derringer vs Jim Weaver | Fourth | 9 out |
| Saturday, September 19 |
| » Defeated Reds (71-75), 7-6 | Forbes Field (44-30) | 80-67 | Won 3 |
| » Starters: Gene Schott vs Bill Swift | Fourth | 9 out |
| Sunday, September 20 |
| » Defeated Reds (71-76), 5-1 | Forbes Field (45-30) | 81-67 | Won 4 |
| » Starters: Paul Derringer vs Cy Blanton | Fourth | 8½ out |
| » Defeated Reds (71-77), 6-4 | Forbes Field (46-30) | 82-67 | Won 5 |
| » Starters: Peaches Davis vs Red Lucas | Fourth | 8½ out |
| Tuesday, September 22 |
| » Lost to Cubs (85-65), 11-4 | Wrigley Field (2-7) | 82-68 | |
| » Starters: Waite Hoyt vs Larry French | Fourth | 8 out |
| Wednesday, September 23 |
| » Defeated Cubs (85-66), 7-6 | Wrigley Field (3-7) | 83-68 | |
| » Starters: Bill Swift vs Roy Henshaw | Fourth | 8 out |
| Thursday, September 24 |
| » Defeated Cubs (85-67), 4-0 | Wrigley Field (4-7) | 84-68 | Won 2 |
| » Starters: Cy Blanton vs Larry French | Fourth | 7½ out |
| Saturday, September 26 |
| » Lost to Reds (73-80), 5-1 | Crosley Field (5-5) | 84-69 | |
| » Starters: Bill Swift vs Bill Hallahan | Fourth | 8 out |
| Sunday, September 27 |
| » Lost to Reds (74-80), 6-5 | Crosley Field (5-6) | 84-70 | Lost 2 |
| » Starters: Mace Brown vs Dee Moore | Third | 8 out |
| » Major-league debuts: Whitey Moore (Reds) |
| Saturday, October 3 |
| Future Pirate Jack Lamabe is born in Farmingdale, NY. |
| Monday, December 7 |
| Future Pirate Bo Belinsky is born in New York, NY. |
Game information provided by Retrosheet (www.retrosheet.org) |
