| Saturday, January 13 |
| Future Pirate Ron Brand is born in Los Angeles, CA. |
| Wednesday, March 6 |
| Future Pirate Willie Stargell is born in Earlsboro, OK. |
| Wednesday, March 13 |
| Former Pirate Ira Flagstead dies in Olympia, WA at the age of 47. |
| Saturday, March 30 |
| Former Pirate George McQuillan dies in Columbus, OH at the age of 55. |
| Monday, April 8 |
| Former Pirate Bill Abstein dies in St.Louis, MO at the age of 58. |
| Monday, April 15 |
| Future Pirate Woodie Fryman is born in Ewing, KY. |
| Tuesday, April 16 |
| » Defeated Cardinals (0-1), 6-4 | Sportsman's Park III (1-0) | 1-0 | |
| » Starters: Bob Klinger vs Curt Davis | First | -- |
| Monday, April 22 |
| » Defeated Cubs (2-4), 9-5 | Forbes Field (1-0) | 2-0 | Won 2 |
| » Starters: Claude Passeau vs Joe Bowman | Second | ½ out |
| Tuesday, April 23 |
| » Defeated Cubs (2-5), 3-2 | Forbes Field (2-0) | 3-0 | Won 3 |
| » Starters: Larry French vs Danny MacFayden | First | -- |
| Wednesday, April 24 |
| » Lost to Cubs (3-5), 9-4 | Forbes Field (2-1) | 3-1 | |
| » Starters: Bill Lee vs Max Butcher | Third | 1 out |
| Thursday, April 25 |
| » Lost to Cardinals (2-4), 10-9 | Forbes Field (2-2) | 3-2 | Lost 2 |
| » Starters: Mort Cooper vs Bob Klinger | Third | 2 out |
| Friday, April 26 |
| » Defeated Cardinals (2-5), 10-4 | Forbes Field (3-2) | 4-2 | |
| » Starters: Curt Davis vs Mace Brown | Second | 2 out |
| » Major-league debuts: Dutch Dietz (Pirates) |
| Saturday, April 27 |
| » Lost to Reds (4-2), 3-0 | Crosley Field (0-1) | 4-3 | |
| » Starters: Joe Bowman vs Bucky Walters | Third | 3 out |
| Sunday, April 28 |
| » Lost to Reds (5-2), 8-2 | Crosley Field (0-2) | 4-4 | Lost 2 |
| » Starters: Danny MacFayden vs Junior Thompson | Third | 4 out |
| Monday, April 29 |
| » Lost to Reds (6-2), 3-2 | Crosley Field (0-3) | 4-5 | Lost 3 |
| » Starters: Max Butcher vs Paul Derringer | Fifth | 4½ out |
| Tuesday, April 30 |
| » Lost to Phillies (3-5), 6-2 | Forbes Field (3-3) | 4-6 | Lost 4 |
| » Starters: Hugh Mulcahy vs Bob Klinger | Fifth | 5½ out |
| » Major-league debuts: Art Mahan (Phillies) |
| Sunday, May 5 |
| » Lost to Braves (3-8), 5-1 | Forbes Field (3-4) | 4-7 | Lost 5 |
| » Starters: Nick Strincevich vs Mace Brown | Sixth | 6 out |
| Monday, May 6 |
| » Lost to Braves (4-8), 10-7 | Forbes Field (3-5) | 4-8 | Lost 6 |
| » Starters: Dick Errickson vs Joe Bowman | Sixth | 7 out |
| Tuesday, May 7 |
| » Lost to Braves (5-8), 11-9 | Forbes Field (3-6) | 4-9 | Lost 7 |
| » Starters: Al Piechota vs Danny MacFayden | Seventh | 7 out |
| Wednesday, May 8 |
| » Lost to Giants (6-8), 10-6 | Forbes Field (3-7) | 4-10 | Lost 8 |
| » Starters: Cliff Melton vs Bob Klinger | Seventh | 7½ out |
| Thursday, May 9 |
| » Lost to Giants (7-8), 17-6 | Forbes Field (3-8) | 4-11 | Lost 9 |
| » Starters: Carl Hubbell vs Max Butcher | Eighth | 8½ out |
| Friday, May 10 |
| » Defeated Cubs (9-11), 8-3 | Wrigley Field (1-0) | 5-11 | |
| » Starters: Mace Brown vs Bill Lee | Eighth | 7½ out |
| Saturday, May 11 |
| » Lost to Cubs (10-11), 7-5 | Wrigley Field (1-1) | 5-12 | |
| » Starters: Joe Bowman vs Claude Passeau | Eighth | 8 out |
| Sunday, May 12 |
| » Lost to Cubs (11-11), 7-5 | Wrigley Field (1-2) | 5-13 | Lost 2 |
| » Starters: Rip Sewell vs Dizzy Dean | Eighth | 9½ out |
| Tuesday, May 14 |
| » Defeated Giants (11-9), 7-2 | Polo Grounds V (1-0) | 6-13 | |
| » Starters: Bob Klinger vs Cliff Melton | Eighth | 9 out |
| Wednesday, May 15 |
| » Lost to Giants (12-9), 5-2 | Polo Grounds V (1-1) | 6-14 | |
| » Starters: Mace Brown vs Carl Hubbell | Eighth | 9½ out |
| Thursday, May 16 |
| Former Pirate Spike Shannon dies in Minneapolis, MN at the age of 63. |
| Saturday, May 18 |
| » Lost to Braves (7-14), 15-5 | Braves Field (0-1) | 6-15 | Lost 2 |
| » Starters: Max Butcher vs Bill Posedel | Eighth | 10 out |
| Sunday, May 19 |
| » Lost to Phillies (10-12), 6-5 | Shibe Park (0-1) | 6-16 | Lost 3 |
| » Starters: Joe Bowman vs Kirby Higbe | Eighth | 11 out |
| Monday, May 20 |
| » Lost to Phillies (11-12), 8-7 | Shibe Park (0-2) | 6-17 | Lost 4 |
| » Starters: Mace Brown vs Ike Pearson | Eighth | 11 out |
| Wednesday, May 22 |
| » Lost to Dodgers (18-8), 3-1 | Ebbets Field (0-1) | 6-18 | Lost 5 |
| » Starters: Bob Klinger vs Freddie Fitzsimmons | Seventh | 11 out |
| Saturday, May 25 |
| » Defeated Cubs (17-14), 12-7 | Forbes Field (4-8) | 7-18 | |
| » Starters: Larry French vs Joe Bowman | Eighth | 10½ out |
| Sunday, May 26 |
| » Defeated Cubs (17-15), 3-2 | Forbes Field (5-8) | 8-18 | Won 2 |
| » Starters: Bill Lee vs Bob Klinger | Eighth | 10½ out |
| Monday, May 27 |
| » Lost to Reds (21-9), 2-1 | Forbes Field (5-9) | 8-19 | |
| » Starters: Whitey Moore vs Mace Brown | Eighth | 12 out |
| » Lost to Reds (22-9), 7-3 | Forbes Field (5-10) | 8-20 | Lost 2 |
| » Starters: Jim Turner vs Russ Bauers | Eighth | 12 out |
| Tuesday, May 28 |
| » Defeated Reds (22-10), 5-2 | Forbes Field (6-10) | 9-20 | |
| » Starters: Junior Thompson vs Max Butcher | Eighth | 12 out |
| Wednesday, May 29 |
| » Lost to Reds (23-10), 4-0 | Forbes Field (6-11) | 9-21 | |
| » Starters: Bucky Walters vs Joe Bowman | Eighth | 12½ out |
| Sunday, June 2 |
| » Defeated Giants (19-13), 2-1 | Forbes Field (7-11) | 10-21 | |
| » Starters: Hal Schumacher vs Bob Klinger | Eighth | 14 out |
| » Lost to Giants (20-13), 7-3 | Forbes Field (7-12) | 10-22 | |
| » Starters: Cliff Melton vs Mace Brown | Eighth | 14 out |
| Monday, June 3 |
| » Lost to Giants (21-13), 4-3 | Forbes Field (7-13) | 10-23 | Lost 2 |
| » Starters: Bill Lohrman vs Max Butcher | Eighth | 15 out |
| Former Pirate Billy Kelly dies in Detroit, MI at the age of 55. |
| Tuesday, June 4 |
| » Defeated Braves (12-22), 14-2 | Forbes Field (8-13) | 11-23 | |
| » Starters: Joe Callahan vs Joe Bowman | Eighth | 14 out |
| Thursday, June 6 |
| » Defeated Braves (12-23), 7-6 | Forbes Field (9-13) | 12-23 | Won 2 |
| » Starters: Bill Posedel vs Bob Klinger | Seventh | 14 out |
| Friday, June 7 |
| » Defeated Phillies (14-23), 10-4 | Forbes Field (10-13) | 13-23 | Won 3 |
| » Starters: Boom-Boom Beck vs Mace Brown | Seventh | 13 out |
| Saturday, June 8 |
| » Defeated Phillies (14-24), 6-5 | Forbes Field (11-13) | 14-23 | Won 4 |
| » Starters: Kirby Higbe vs Max Butcher | Fifth | 13 out |
| Sunday, June 9 |
| » Lost to Phillies (15-24), 6-1 | Forbes Field (11-14) | 14-24 | |
| » Starters: Hugh Mulcahy vs Bob Klinger | Fifth | 13 out |
| » Defeated Phillies (15-25), 11-5 | Forbes Field (12-14) | 15-24 | |
| » Starters: Ike Pearson vs Joe Bowman | Fifth | 13 out |
| Monday, June 10 |
| » Lost to Dodgers (29-13), 8-7 | Forbes Field (12-15) | 15-25 | |
| » Starters: Luke Hamlin vs Rip Sewell | Fifth | 13 out |
| Wednesday, June 12 |
| » Lost to Dodgers (30-13), 5-4 | Forbes Field (12-16) | 15-26 | Lost 2 |
| » Starters: Vito Tamulis vs Mace Brown | Sixth | 14 out |
| Friday, June 14 |
| » Lost to Giants (29-15), 8-6 | Polo Grounds V (1-2) | 15-27 | Lost 3 |
| » Starters: Bob Klinger vs Cliff Melton | Sixth | 15 out |
| Saturday, June 15 |
| » Lost to Giants (30-15), 12-1 | Polo Grounds V (1-3) | 15-28 | Lost 4 |
| » Starters: Joe Bowman vs Hal Schumacher | Seventh | 16 out |
| Sunday, June 16 |
| » Defeated Giants (30-16), 5-0 | Polo Grounds V (2-3) | 16-28 | |
| » Starters: Max Butcher vs Carl Hubbell | Sixth | 14 out |
| » Defeated Giants (30-17), 5-3 | Polo Grounds V (3-3) | 17-28 | Won 2 |
| » Starters: Rip Sewell vs Harry Gumbert | Sixth | 14 out |
| Monday, June 17 |
| » Lost to Braves (16-29), 5-3 | Braves Field (0-2) | 17-29 | |
| » Starters: Danny MacFayden vs Bill Posedel | Seventh | 15½ out |
| » Lost to Braves (17-29), 5-1 | Braves Field (0-3) | 17-30 | Lost 2 |
| » Starters: Bob Klinger vs Al Piechota | Seventh | 15½ out |
| Wednesday, June 19 |
| » Defeated Braves (17-30), 5-1 | Braves Field (1-3) | 18-30 | |
| » Starters: Joe Bowman vs Dick Errickson | Sixth | 14½ out |
| Thursday, June 20 |
| » Defeated Braves (17-31), 8-7 | Braves Field (2-3) | 19-30 | Won 2 |
| » Starters: Max Butcher vs Lou Fette | Sixth | 13½ out |
| Friday, June 21 |
| » Lost to Dodgers (34-17), 10-8 | Ebbets Field (0-2) | 19-31 | |
| » Starters: Bob Klinger vs Freddie Fitzsimmons | Sixth | 14½ out |
| Saturday, June 22 |
| » Defeated Dodgers (34-18), 7-2 | Ebbets Field (1-2) | 20-31 | |
| » Starters: Rip Sewell vs Tex Carleton | Sixth | 13½ out |
| Sunday, June 23 |
| » Defeated Dodgers (34-19), 8-5 | Ebbets Field (2-2) | 21-31 | Won 2 |
| » Starters: Danny MacFayden vs Whit Wyatt | Sixth | 14 out |
| » Tied Dodgers, 4-4 | Ebbets Field (2-2) | 21-31 | |
| » Starters: Ken Heintzelman vs Curt Davis | Sixth | 14 out |
| Tuesday, June 25 |
| » Defeated Phillies (19-35), 9-7 | Shibe Park (1-2) | 22-31 | Won 3 |
| » Starters: Max Butcher vs Kirby Higbe | Fifth | 13½ out |
| Wednesday, June 26 |
| » Lost to Phillies (20-35), 4-2 | Shibe Park (1-3) | 22-32 | |
| » Starters: Joe Bowman vs Cy Blanton | Fifth | 13½ out |
| » Defeated Phillies (20-36), 11-6 | Shibe Park (2-3) | 23-32 | |
| » Starters: Rip Sewell vs Boom-Boom Beck | Fifth | 13½ out |
| Friday, June 28 |
| » Lost to Cardinals (23-33), 8-2 | Forbes Field (12-17) | 23-33 | |
| » Starters: Bill McGee vs Ken Heintzelman | Fifth | 13½ out |
| Sunday, June 30 |
| » Lost to Cardinals (24-33), 1-0 | Forbes Field (12-18) | 23-34 | Lost 2 |
| » Starters: Mort Cooper vs Bob Klinger | Fifth | 15 out |
| » Defeated Cardinals (24-34), 2-0 | Forbes Field (13-18) | 24-34 | |
| » Starters: Clyde Shoun vs Max Butcher | Fifth | 15 out |
| Monday, July 1 |
| » Defeated Cubs (34-34), 4-3 | Wrigley Field (2-2) | 25-34 | Won 2 |
| » Starters: Danny MacFayden vs Ken Raffensberger | Fifth | 14 out |
| Tuesday, July 2 |
| » Lost to Cubs (35-34), 10-0 | Wrigley Field (2-3) | 25-35 | |
| » Starters: Joe Bowman vs Bill Lee | Sixth | 14½ out |
| Wednesday, July 3 |
| » Lost to Cubs (36-34), 7-5 | Wrigley Field (2-4) | 25-36 | Lost 2 |
| » Starters: Rip Sewell vs Claude Passeau | Sixth | 15½ out |
| Thursday, July 4 |
| » Lost to Reds (42-23), 9-1 | Crosley Field (0-4) | 25-37 | Lost 3 |
| » Starters: Bob Klinger vs Bucky Walters | Sixth | 17½ out |
| » Lost to Reds (43-23), 3-1 | Crosley Field (0-5) | 25-38 | Lost 4 |
| » Starters: Max Butcher vs Junior Thompson | Sixth | 17½ out |
| Friday, July 5 |
| » Lost to Reds (44-23), 5-4 | Crosley Field (0-6) | 25-39 | Lost 5 |
| » Starters: Danny MacFayden vs Jim Turner | Sixth | 18½ out |
| Saturday, July 6 |
| » Defeated Cardinals (27-37), 15-8 | Sportsman's Park III (2-0) | 26-39 | |
| » Starters: Rip Sewell vs Bill McGee | Sixth | 18 out |
| » Defeated Cardinals (27-38), 4-3 | Sportsman's Park III (3-0) | 27-39 | Won 2 |
| » Starters: Russ Bauers vs Lon Warneke | Sixth | 18 out |
| Sunday, July 7 |
| » Defeated Cardinals (27-39), 7-6 | Sportsman's Park III (4-0) | 28-39 | Won 3 |
| » Starters: Max Butcher vs Clyde Shoun | Fifth | 16½ out |
| » Defeated Cardinals (27-40), 4-1 | Sportsman's Park III (5-0) | 29-39 | Won 4 |
| » Starters: Ken Heintzelman vs Mort Cooper | Fifth | 16½ out |
| Wednesday, July 10 |
| Future Pirate Gene Alley is born in Richmond, VA. |
| Friday, July 12 |
| » Lost to Phillies (25-45), 6-3 | Forbes Field (13-19) | 29-40 | |
| » Starters: Hugh Mulcahy vs Joe Bowman | Fifth | 17½ out |
| Saturday, July 13 |
| » Defeated Phillies (25-46), 9-8 | Forbes Field (14-19) | 30-40 | |
| » Starters: Cy Blanton vs Mace Brown | Fifth | 17 out |
| Sunday, July 14 |
| » Defeated Dodgers (46-26), 6-2 | Forbes Field (15-19) | 31-40 | Won 2 |
| » Starters: Luke Hamlin vs Rip Sewell | Fifth | 18 out |
| » Lost to Dodgers (47-26), 2-0 | Forbes Field (15-20) | 31-41 | |
| » Starters: Freddie Fitzsimmons vs Ken Heintzelman | Fifth | 18 out |
| Monday, July 15 |
| » Lost to Dodgers (48-26), 10-1 | Forbes Field (15-21) | 31-42 | Lost 2 |
| » Starters: Whit Wyatt vs Max Butcher | Sixth | 18½ out |
| » Defeated Dodgers (48-27), 4-3 | Forbes Field (16-21) | 32-42 | |
| » Starters: Tot Pressnell vs Bob Klinger | Sixth | 18½ out |
| Tuesday, July 16 |
| » Defeated Dodgers (48-28), 5-3 | Forbes Field (17-21) | 33-42 | Won 2 |
| » Starters: Tex Carleton vs Johnny Lanning | Sixth | 18 out |
| Thursday, July 18 |
| » Lost to Giants (43-33), 6-1 | Forbes Field (17-22) | 33-43 | |
| » Starters: Carl Hubbell vs Ken Heintzelman | Sixth | 19 out |
| Friday, July 19 |
| » Lost to Giants (44-33), 5-2 | Forbes Field (17-23) | 33-44 | Lost 2 |
| » Starters: Hal Schumacher vs Rip Sewell | Sixth | 19 out |
| Saturday, July 20 |
| » Defeated Braves (28-47), 17-6 | Forbes Field (18-23) | 34-44 | |
| » Starters: Dick Errickson vs Joe Bowman | Sixth | 19 out |
| Sunday, July 21 |
| » Defeated Braves (28-48), 5-3 | Forbes Field (19-23) | 35-44 | Won 2 |
| » Starters: Manny Salvo vs Danny MacFayden | Sixth | 19 out |
| » Defeated Braves (28-49), 16-2 | Forbes Field (20-23) | 36-44 | Won 3 |
| » Starters: Bill Posedel vs Johnny Lanning | Sixth | 19 out |
| Tuesday, July 23 |
| » Lost to Giants (45-36), 9-1 | Polo Grounds V (3-4) | 36-45 | |
| » Starters: Bob Klinger vs Carl Hubbell | Sixth | 20½ out |
| Thursday, July 25 |
| » Defeated Giants (45-37), 2-1 | Polo Grounds V (4-4) | 37-45 | |
| » Starters: Rip Sewell vs Hal Schumacher | Sixth | 20½ out |
| Friday, July 26 |
| » Defeated Braves (29-52), 9-0 | Braves Field (3-3) | 38-45 | Won 2 |
| » Starters: Ken Heintzelman vs Bill Posedel | Sixth | 20½ out |
| Saturday, July 27 |
| » Defeated Braves (29-53), 10-4 | Braves Field (4-3) | 39-45 | Won 3 |
| » Starters: Joe Bowman vs Joe Sullivan | Sixth | 19½ out |
| Sunday, July 28 |
| » Defeated Braves (29-54), 5-2 | Braves Field (5-3) | 40-45 | Won 4 |
| » Starters: Dick Lanahan vs Dick Errickson | Fifth | 18½ out |
| » Defeated Braves (29-55), 7-3 | Braves Field (6-3) | 41-45 | Won 5 |
| » Starters: Max Butcher vs Al Javery | Fifth | 18½ out |
| Monday, July 29 |
| » Lost to Dodgers (54-36), 7-6 | Ebbets Field (2-3) | 41-46 | |
| » Starters: Johnny Lanning vs Curt Davis | Sixth | 18½ out |
| Tuesday, July 30 |
| » Defeated Dodgers (54-37), 8-2 | Ebbets Field (3-3) | 42-46 | |
| » Starters: Rip Sewell vs Ed Head | Sixth | 18½ out |
| Thursday, August 1 |
| » Lost to Dodgers (55-37), 8-3 | Ebbets Field (3-4) | 42-47 | |
| » Starters: Ken Heintzelman vs Whit Wyatt | Sixth | 19 out |
| » Lost to Dodgers (56-37), 8-7 | Ebbets Field (3-5) | 42-48 | Lost 2 |
| » Starters: Max Butcher vs Ed Head | Sixth | 19 out |
| Friday, August 2 |
| » Defeated Phillies (32-57), 5-2 | Shibe Park (3-3) | 43-48 | |
| » Starters: Joe Bowman vs Cy Blanton | Sixth | 17½ out |
| Saturday, August 3 |
| » Defeated Phillies (32-58), 8-0 | Shibe Park (4-3) | 44-48 | Won 2 |
| » Starters: Mace Brown vs Kirby Higbe | Sixth | 17 out |
| Sunday, August 4 |
| » Defeated Phillies (32-59), 6-1 | Shibe Park (5-3) | 45-48 | Won 3 |
| » Starters: Rip Sewell vs Hugh Mulcahy | Sixth | 16 out |
| » Defeated Phillies (32-60), 6-4 | Shibe Park (6-3) | 46-48 | Won 4 |
| » Starters: Johnny Lanning vs Charlie Frye | Sixth | 16 out |
| Tuesday, August 6 |
| » Defeated Cardinals (47-48), 3-1 | Forbes Field (21-23) | 47-48 | Won 5 |
| » Starters: Mort Cooper vs Ken Heintzelman | Fifth | 15½ out |
| Wednesday, August 7 |
| » Defeated Cardinals (47-49), 10-9 | Forbes Field (22-23) | 48-48 | Won 6 |
| » Starters: Lon Warneke vs Mace Brown | Fifth | 14 out |
| » Defeated Cardinals (47-50), 12-6 | Forbes Field (23-23) | 49-48 | Won 7 |
| » Starters: Max Lanier vs Max Butcher | Fifth | 14 out |
| Friday, August 9 |
| » Defeated Cubs (53-52), 6-2 | Forbes Field (24-23) | 50-48 | Won 8 |
| » Starters: Ken Raffensberger vs Rip Sewell | Fourth | 14½ out |
| Saturday, August 10 |
| » Lost to Cubs (54-52), 1-0 | Forbes Field (24-24) | 50-49 | |
| » Starters: Vern Olsen vs Mace Brown | Fifth | 15½ out |
| Sunday, August 11 |
| » Defeated Cubs (54-53), 7-3 | Forbes Field (25-24) | 51-49 | |
| » Starters: Bill Lee vs Ken Heintzelman | Fourth | 13½ out |
| » Defeated Cubs (54-54), 5-1 | Forbes Field (26-24) | 52-49 | Won 2 |
| » Starters: Claude Passeau vs Dick Lanahan | Fourth | 13½ out |
| Monday, August 12 |
| » Defeated Reds (66-37), 4-2 | Forbes Field (27-24) | 53-49 | Won 3 |
| » Starters: Bucky Walters vs Max Butcher | Fourth | 12½ out |
| Tuesday, August 13 |
| » Lost to Reds (67-37), 4-3 | Forbes Field (27-25) | 53-50 | |
| » Starters: Junior Thompson vs Joe Bowman | Fourth | 13½ out |
| Wednesday, August 14 |
| » Lost to Cardinals (51-52), 7-6 | Sportsman's Park III (5-1) | 53-51 | Lost 2 |
| » Starters: Rip Sewell vs Bill McGee | Fourth | 14 out |
| Friday, August 16 |
| » Defeated Cardinals (51-53), 6-5 | Sportsman's Park III (6-1) | 54-51 | |
| » Starters: Dick Lanahan vs Bob Bowman | Fourth | 14½ out |
| » Lost to Cardinals (52-53), 9-5 | Sportsman's Park III (6-2) | 54-52 | |
| » Starters: Max Butcher vs Lon Warneke | Fourth | 14½ out |
| Saturday, August 17 |
| » Lost to Cubs (56-57), 6-5 | Wrigley Field (2-5) | 54-53 | Lost 2 |
| » Starters: Bob Klinger vs Jake Mooty | Fourth | 15 out |
| Sunday, August 18 |
| » Lost to Cubs (57-57), 9-1 | Wrigley Field (2-6) | 54-54 | Lost 3 |
| » Starters: Rip Sewell vs Larry French | Fifth | 14½ out |
| Future Pirate Paul Popovich is born in Flemington, WV. |
| Monday, August 19 |
| » Lost to Braves (44-66), 3-0 | Forbes Field (27-26) | 54-55 | Lost 4 |
| » Starters: Dick Errickson vs Joe Bowman | Sixth | 14½ out |
| Tuesday, August 20 |
| » Defeated Braves (44-67), 6-3 | Forbes Field (28-26) | 55-55 | |
| » Starters: Manny Salvo vs Dick Lanahan | Sixth | 14½ out |
| Wednesday, August 21 |
| » Defeated Braves (44-68), 3-2 | Forbes Field (29-26) | 56-55 | Won 2 |
| » Starters: Joe Sullivan vs Ken Heintzelman | Fifth | 13½ out |
| Thursday, August 22 |
| » Lost to Giants (58-52), 5-4 | Forbes Field (29-27) | 56-56 | |
| » Starters: Harry Gumbert vs Bob Klinger | Fifth | 14 out |
| » Defeated Giants (58-53), 4-0 | Forbes Field (30-27) | 57-56 | |
| » Starters: Cliff Melton vs Rip Sewell | Fifth | 14 out |
| Friday, August 23 |
| » Defeated Giants (58-54), 13-10 | Forbes Field (31-27) | 58-56 | Won 2 |
| » Starters: Carl Hubbell vs Max Butcher | Fifth | 13 out |
| Saturday, August 24 |
| » Lost to Giants (59-54), 7-6 | Forbes Field (31-28) | 58-57 | |
| » Starters: Bill Lohrman vs Mace Brown | Sixth | 14 out |
| Sunday, August 25 |
| » Defeated Dodgers (66-51), 4-3 | Forbes Field (32-28) | 59-57 | |
| » Starters: Whit Wyatt vs Dick Lanahan | Sixth | 15 out |
| » Lost to Dodgers (67-51), 8-1 | Forbes Field (32-29) | 59-58 | |
| » Starters: Freddie Fitzsimmons vs Bob Klinger | Sixth | 15 out |
| Wednesday, August 28 |
| » Defeated Phillies (39-76), 5-0 | Forbes Field (33-29) | 60-58 | |
| » Starters: Hugh Mulcahy vs Rip Sewell | Fourth | 14 out |
| » Defeated Phillies (39-77), 5-2 | Forbes Field (34-29) | 61-58 | Won 2 |
| » Starters: Kirby Higbe vs Joe Bowman | Fourth | 14 out |
| Thursday, August 29 |
| » Defeated Phillies (39-78), 4-0 | Forbes Field (35-29) | 62-58 | Won 3 |
| » Starters: Ike Pearson vs Mace Brown | Fifth | 14 out |
| Saturday, August 31 |
| Future Pirate Ramon Hernandez is born in Carolina, P.R. |
| Sunday, September 1 |
| » Defeated Cardinals (63-57), 10-0 | Forbes Field (36-29) | 63-58 | Won 4 |
| » Starters: Clyde Shoun vs Ken Heintzelman | Fourth | 14½ out |
| » Tied Cardinals, 5-5 | Forbes Field (36-29) | 63-58 | |
| » Starters: Bob Bowman vs Dick Lanahan | Fourth | 14½ out |
| Monday, September 2 |
| » Defeated Cubs (62-67), 5-2 | Forbes Field (37-29) | 64-58 | Won 5 |
| » Starters: Charlie Root vs Rip Sewell | Fourth | 14½ out |
| » Lost to Cubs (63-67), 7-1 | Forbes Field (37-30) | 64-59 | |
| » Starters: Vern Olsen vs Joe Bowman | Fourth | 14½ out |
| Former Pirate Johnny Welch dies in St.Louis, MO at the age of 34. |
| Wednesday, September 4 |
| » Lost to Reds (82-46), 3-2 | Crosley Field (0-7) | 64-60 | Lost 2 |
| » Starters: Max Butcher vs Bucky Walters | Fourth | 16 out |
| Thursday, September 5 |
| » Lost to Reds (83-46), 6-3 | Crosley Field (0-8) | 64-61 | Lost 3 |
| » Starters: Johnny Lanning vs Johnny Vander Meer | Fourth | 17 out |
| Saturday, September 7 |
| » Defeated Cardinals (66-60), 14-9 | Sportsman's Park III (7-2) | 65-61 | |
| » Starters: Ken Heintzelman vs Mort Cooper | Fourth | 17 out |
| Sunday, September 8 |
| » Defeated Cardinals (66-61), 16-14 | Sportsman's Park III (8-2) | 66-61 | Won 2 |
| » Starters: Rip Sewell vs Bob Bowman | Third | 15½ out |
| » Defeated Cardinals (66-62), 5-4 | Sportsman's Park III (9-2) | 67-61 | Won 3 |
| » Starters: Bob Klinger vs Lon Warneke | Third | 15½ out |
| Tuesday, September 10 |
| » Defeated Phillies (43-88), 11-3 | Shibe Park (7-3) | 68-61 | Won 4 |
| » Starters: Joe Bowman vs Hugh Mulcahy | Third | 14½ out |
| » Defeated Phillies (43-89), 11-1 | Shibe Park (8-3) | 69-61 | Won 5 |
| » Starters: Rip Sewell vs Charlie Frye | Third | 14½ out |
| » Major-league debuts: Max Wilson (Phillies) |
| Wednesday, September 11 |
| » Defeated Phillies (43-90), 9-3 | Shibe Park (9-3) | 70-61 | Won 6 |
| » Starters: Mace Brown vs Ike Pearson | Third | 15 out |
| Future Pirate Jackie Hernandez is born in Central Tinguaro, Cuba. |
| Thursday, September 12 |
| » Lost to Dodgers (79-57), 7-0 | Ebbets Field (3-6) | 70-62 | |
| » Starters: Ken Heintzelman vs Hugh Casey | Third | 16½ out |
| » Lost to Dodgers (80-57), 7-4 | Ebbets Field (3-7) | 70-63 | Lost 2 |
| » Starters: Max Butcher vs Luke Hamlin | Third | 16½ out |
| Friday, September 13 |
| » Lost to Dodgers (81-57), 8-2 | Ebbets Field (3-8) | 70-64 | Lost 3 |
| » Starters: Bob Klinger vs Ed Head | Third | 17½ out |
| Saturday, September 14 |
| » Lost to Dodgers (82-57), 5-0 | Ebbets Field (3-9) | 70-65 | Lost 4 |
| » Starters: Dick Lanahan vs Freddie Fitzsimmons | Fourth | 19 out |
| » Lost to Dodgers (83-57), 4-2 | Ebbets Field (3-10) | 70-66 | Lost 5 |
| » Starters: Johnny Lanning vs Lee Grissom | Fourth | 19 out |
| Sunday, September 15 |
| » Defeated Giants (66-71), 10-3 | Polo Grounds V (5-4) | 71-66 | |
| » Starters: Rip Sewell vs Cliff Melton | Fourth | 18½ out |
| » Defeated Giants (66-72), 4-3 | Polo Grounds V (6-4) | 72-66 | Won 2 |
| » Starters: Ken Heintzelman vs Harry Gumbert | Fourth | 18½ out |
| Monday, September 16 |
| » Defeated Giants (66-73), 7-6 | Polo Grounds V (7-4) | 73-66 | Won 3 |
| » Starters: Max Butcher vs Bill Lohrman | Fourth | 18½ out |
| Tuesday, September 17 |
| » Lost to Braves (60-82), 10-5 | Braves Field (6-4) | 73-67 | |
| » Starters: Dick Lanahan vs Dick Errickson | Fourth | 19½ out |
| Wednesday, September 18 |
| » Lost to Braves (61-82), 4-1 | Braves Field (6-5) | 73-68 | Lost 2 |
| » Starters: Joe Bowman vs Jim Tobin | Fourth | 20½ out |
| Thursday, September 19 |
| » Lost to Cardinals (76-65), 2-1 | Forbes Field (37-31) | 73-69 | Lost 3 |
| » Starters: Bill McGee vs Rip Sewell | Fourth | 22 out |
| » Lost to Cardinals (77-65), 8-2 | Forbes Field (37-32) | 73-70 | Lost 4 |
| » Starters: Bob Bowman vs Ken Heintzelman | Fourth | 22 out |
| Saturday, September 21 |
| » Lost to Reds (95-47), 8-1 | Forbes Field (37-33) | 73-71 | Lost 5 |
| » Starters: Bucky Walters vs Max Butcher | Fourth | 22 out |
| » Defeated Reds (95-48), 8-7 | Forbes Field (38-33) | 74-71 | |
| » Starters: Junior Thompson vs Dutch Dietz | Fourth | 22 out |
| Sunday, September 22 |
| » Lost to Reds (96-48), 2-1 | Forbes Field (38-34) | 74-72 | |
| » Starters: Jim Turner vs Oad Swigart | Fourth | 22 out |
| » Defeated Reds (96-49), 8-1 | Forbes Field (39-34) | 75-72 | |
| » Starters: Johnny Vander Meer vs Johnny Lanning | Fourth | 22 out |
| Monday, September 23 |
| » Defeated Reds (96-50), 12-9 | Forbes Field (40-34) | 76-72 | Won 2 |
| » Starters: Paul Derringer vs Joe Bowman | Fourth | 21 out |
| Wednesday, September 25 |
| » Lost to Cubs (74-75), 2-1 | Wrigley Field (2-7) | 76-73 | |
| » Starters: Rip Sewell vs Bill Lee | Fourth | 22 out |
| » Lost to Cubs (75-75), 6-4 | Wrigley Field (2-8) | 76-74 | Lost 2 |
| » Starters: Mace Brown vs Vern Olsen | Fourth | 22 out |
| Thursday, September 26 |
| » Defeated Cubs (75-76), 7-6 | Wrigley Field (3-8) | 77-74 | |
| » Starters: Ken Heintzelman vs Larry French | Fourth | 21½ out |
| Friday, September 27 |
| » Defeated Reds (98-53), 4-3 | Crosley Field (1-8) | 78-74 | Won 2 |
| » Starters: Oad Swigart vs Paul Derringer | Fourth | 20½ out |
| Saturday, September 28 |
| » Lost to Reds (99-53), 6-5 | Crosley Field (1-9) | 78-75 | |
| » Starters: Dutch Dietz vs Jim Turner | Fourth | 21½ out |
| Sunday, September 29 |
| » Lost to Reds (100-53), 11-3 | Crosley Field (1-10) | 78-76 | Lost 2 |
| » Starters: Pep Rambert vs Bucky Walters | Fourth | 22½ out |
| Saturday, October 5 |
| Former Pirate Crazy Schmit dies in Chicago, IL at the age of 75. |
| Saturday, November 23 |
| Future Pirate Luis Tiant, Jr. is born in Marianao, Cuba. |
Game information provided by Retrosheet (www.retrosheet.org) |