| Thursday, January 10 |
| Former Pirate Bones Ely dies in Berkeley, CA at the age of 89. |
| Monday, January 14 |
| Future Pirate Terry Forster is born in Sioux Falls, SD. |
| Thursday, February 14 |
| Future Pirate Will McEnaney is born in Springfield, OH. |
| Saturday, February 16 |
| Future Pirate Jerry Hairston is born in Birmingham, AL. |
| Thursday, March 20 |
| Future Pirate Rick Langford is born in Farmville, VA. |
| Sunday, March 30 |
| Former Pirate Deacon Phillippe dies in Avalon, PA at the age of 80. |
| Tuesday, April 15 |
| » Lost to Cardinals (1-0), 3-2 | Sportsman's Park III (0-1) | 0-1 | |
| » Starters: Murry Dickson vs Gerry Staley | Third | 1 out |
| » Major-league debuts: Dick Hall (Pirates) |
| Wednesday, April 16 |
| » Lost to Cardinals (2-0), 6-5 | Sportsman's Park III (0-2) | 0-2 | Lost 2 |
| » Starters: Howie Pollet vs Cliff Chambers | Fourth | 2 out |
| » Major-league debuts: Les Fusselman (Cardinals) Bobby Del Greco (Pirates) |
| Thursday, April 17 |
| » Defeated Cardinals (2-1), 5-3 | Sportsman's Park III (1-2) | 1-2 | |
| » Starters: Joe Muir vs Joe Presko | Fourth | 2 out |
| » Major-league debuts: Eddie Yuhas (Cardinals) |
| Friday, April 18 |
| » Defeated Reds (1-2), 3-0 | Forbes Field (1-0) | 2-2 | Won 2 |
| » Starters: Ewell Blackwell vs Bob Friend | Third | 2 out |
| Saturday, April 19 |
| » Lost to Reds (2-2), 9-3 | Forbes Field (1-1) | 2-3 | |
| » Starters: Herm Wehmeier vs Mel Queen | Fourth | 3 out |
| » Major-league debuts: Tony Bartirome and Jim Waugh (Pirates) |
| Sunday, April 20 |
| » Lost to Reds (3-2), 8-6 | Forbes Field (1-2) | 2-4 | Lost 2 |
| » Starters: Harry Perkowski vs Murry Dickson | Eighth | 3½ out |
| » Lost to Reds (4-2), 12-2 | Forbes Field (1-3) | 2-5 | Lost 3 |
| » Starters: Frank Hiller vs Howie Pollet | Eighth | 3½ out |
| Monday, April 21 |
| » Lost to Cubs (4-2), 7-1 | Forbes Field (1-4) | 2-6 | Lost 4 |
| » Starters: Paul Minner vs Ron Kline | Sixth | 4 out |
| » Major-league debuts: Ron Kline and Lee Walls (Pirates) |
| Former Pirate Larry LeJeune dies in Eloise, MI at the age of 67. |
| Tuesday, April 22 |
| » Lost to Cubs (5-2), 13-2 | Forbes Field (1-5) | 2-7 | Lost 5 |
| » Starters: Bob Rush vs Bob Friend | Seventh | 5½ out |
| Friday, April 25 |
| » Lost to Cardinals (4-4), 6-4 | Forbes Field (1-6) | 2-8 | Lost 6 |
| » Starters: Gerry Staley vs Joe Muir | Eighth | 6 out |
| Saturday, April 26 |
| » Lost to Reds (6-3), 9-2 | Crosley Field (0-1) | 2-9 | Lost 7 |
| » Starters: Murry Dickson vs Herm Wehmeier | Sixth | 6½ out |
| Sunday, April 27 |
| » Lost to Reds (7-3), 8-2 | Crosley Field (0-2) | 2-10 | Lost 8 |
| » Starters: Bob Friend vs Ken Raffensberger | Eighth | 7½ out |
| » Lost to Reds (8-3), 1-0 | Crosley Field (0-3) | 2-11 | Lost 9 |
| » Starters: Howie Pollet vs Frank Hiller | Eighth | 7½ out |
| Tuesday, April 29 |
| » Lost to Braves (5-8), 5-1 | Forbes Field (1-7) | 2-12 | Lost 10 |
| » Starters: Warren Spahn vs Bob Friend | Seventh | 8½ out |
| Wednesday, April 30 |
| » Defeated Braves (5-9), 11-5 | Forbes Field (2-7) | 3-12 | |
| » Starters: Dave Cole vs Murry Dickson | Eighth | 7½ out |
| Thursday, May 1 |
| » Lost to Giants (8-4), 13-5 | Forbes Field (2-8) | 3-13 | |
| » Starters: Jim Hearn vs Mel Queen | Eighth | 7½ out |
| Friday, May 2 |
| » Lost to Giants (9-4), 5-3 | Forbes Field (2-9) | 3-14 | Lost 2 |
| » Starters: Dave Koslo vs Howie Pollet | Eighth | 8½ out |
| Saturday, May 3 |
| » Lost to Giants (10-4), 3-2 | Forbes Field (2-10) | 3-15 | Lost 3 |
| » Starters: Sal Maglie vs Ron Kline | Eighth | 9 out |
| Sunday, May 4 |
| » Lost to Dodgers (10-4), 6-0 | Forbes Field (2-11) | 3-16 | Lost 4 |
| » Starters: Carl Erskine vs Murry Dickson | Eighth | 10 out |
| Monday, May 5 |
| » Lost to Dodgers (11-4), 5-1 | Forbes Field (2-12) | 3-17 | Lost 5 |
| » Starters: Ralph Branca vs Bob Friend | Eighth | 11 out |
| Tuesday, May 6 |
| » Lost to Phillies (6-11), 6-0 | Forbes Field (2-13) | 3-18 | Lost 6 |
| » Starters: Robin Roberts vs Don Carlsen | Seventh | 11½ out |
| Wednesday, May 7 |
| » Defeated Phillies (6-12), 5-1 | Forbes Field (3-13) | 4-18 | |
| » Starters: Russ Meyer vs Howie Pollet | Eighth | 11½ out |
| Saturday, May 10 |
| » Lost to Cubs (13-8), 3-1 | Wrigley Field (0-1) | 4-19 | |
| » Starters: Murry Dickson vs Bob Rush | Eighth | 12½ out |
| Sunday, May 11 |
| » Lost to Cubs (14-8), 8-2 | Wrigley Field (0-2) | 4-20 | Lost 2 |
| » Starters: Ron Kline vs Paul Minner | Seventh | 12½ out |
| » Defeated Cubs (14-9), 11-2 | Wrigley Field (1-2) | 5-20 | |
| » Starters: Bob Friend vs Johnny Klippstein | Seventh | 12½ out |
| Tuesday, May 13 |
| » Lost to Braves (9-14), 3-1 | Braves Field (0-1) | 5-21 | |
| » Starters: Howie Pollet vs Vern Bickford | Seventh | 13½ out |
| Wednesday, May 14 |
| » Lost to Braves (10-14), 4-3 | Braves Field (0-2) | 5-22 | Lost 2 |
| » Starters: Red Munger vs Max Surkont | Seventh | 14½ out |
| Thursday, May 15 |
| » Lost to Dodgers (16-7), 2-0 | Ebbets Field (0-1) | 5-23 | Lost 3 |
| » Starters: Murry Dickson vs Billy Loes | Eighth | 15 out |
| Friday, May 16 |
| » Lost to Dodgers (17-7), 6-4 | Ebbets Field (0-2) | 5-24 | Lost 4 |
| » Starters: Bob Friend vs Carl Erskine | Seventh | 14½ out |
| Saturday, May 17 |
| » Lost to Dodgers (18-7), 12-7 | Ebbets Field (0-3) | 5-25 | Lost 5 |
| » Starters: Ron Kline vs Ben Wade | Seventh | 15½ out |
| Monday, May 19 |
| » Lost to Giants (19-7), 4-0 | Polo Grounds V (0-1) | 5-26 | Lost 6 |
| » Starters: Howie Pollet vs Sal Maglie | Seventh | 16½ out |
| Wednesday, May 21 |
| » Lost to Phillies (13-15), 7-3 | Shibe Park (0-1) | 5-27 | Lost 7 |
| » Starters: Murry Dickson vs Robin Roberts | Eighth | 17½ out |
| Thursday, May 22 |
| » Lost to Phillies (14-15), 6-0 | Shibe Park (0-2) | 5-28 | Lost 8 |
| » Starters: Red Munger vs Curt Simmons | Eighth | 18½ out |
| Friday, May 23 |
| » Defeated Cubs (17-15), 6-5 | Forbes Field (4-13) | 6-28 | |
| » Starters: Joe Hatten vs Bob Friend | Eighth | 18½ out |
| Saturday, May 24 |
| » Lost to Cubs (18-15), 7-5 | Forbes Field (4-14) | 6-29 | |
| » Starters: Paul Minner vs Howie Pollet | Eighth | 19½ out |
| Sunday, May 25 |
| » Lost to Cubs (19-15), 5-4 | Forbes Field (4-15) | 6-30 | Lost 2 |
| » Starters: Turk Lown vs Murry Dickson | Eighth | 20 out |
| Monday, May 26 |
| » Defeated Reds (17-17), 6-3 | Forbes Field (5-15) | 7-30 | |
| » Starters: Frank Hiller vs Ron Kline | Eighth | 19½ out |
| Tuesday, May 27 |
| » Lost to Reds (18-17), 5-4 | Forbes Field (5-16) | 7-31 | |
| » Starters: Bubba Church vs Howie Pollet | Eighth | 20½ out |
| Wednesday, May 28 |
| » Lost to Reds (19-17), 5-2 | Forbes Field (5-17) | 7-32 | Lost 2 |
| » Starters: Ken Raffensberger vs Red Munger | Eighth | 21½ out |
| Thursday, May 29 |
| » Defeated Reds (19-18), 4-2 | Forbes Field (6-17) | 8-32 | |
| » Starters: Harry Perkowski vs Murry Dickson | Eighth | 20½ out |
| Friday, May 30 |
| » Lost to Cardinals (18-21), 3-2 | Forbes Field (6-18) | 8-33 | |
| » Starters: Eddie Yuhas vs Bob Friend | Eighth | 20½ out |
| » Defeated Cardinals (18-22), 4-3 | Forbes Field (7-18) | 9-33 | |
| » Starters: Cloyd Boyer vs Ron Kline | Eighth | 20½ out |
| Saturday, May 31 |
| » Defeated Phillies (17-20), 5-3 | Forbes Field (8-18) | 10-33 | Won 2 |
| » Starters: Lou Possehl vs Joe Muir | Eighth | 20 out |
| Sunday, June 1 |
| » Lost to Phillies (18-20), 5-1 | Forbes Field (8-19) | 10-34 | |
| » Starters: Curt Simmons vs Murry Dickson | Eighth | 20 out |
| » Defeated Phillies (18-21), 2-1 | Forbes Field (9-19) | 11-34 | |
| » Starters: Karl Drews vs Howie Pollet | Eighth | 20 out |
| Tuesday, June 3 |
| » Lost to Dodgers (28-11), 6-4 | Forbes Field (9-20) | 11-35 | |
| » Starters: Ralph Branca vs Red Munger | Eighth | 20½ out |
| Wednesday, June 4 |
| » Lost to Dodgers (29-11), 7-4 | Forbes Field (9-21) | 11-36 | Lost 2 |
| » Starters: Carl Erskine vs Bob Friend | Eighth | 21½ out |
| Thursday, June 5 |
| » Lost to Dodgers (30-11), 2-0 | Forbes Field (9-22) | 11-37 | Lost 3 |
| » Starters: Ben Wade vs Ron Kline | Eighth | 22½ out |
| Friday, June 6 |
| » Defeated Giants (28-16), 8-1 | Forbes Field (10-22) | 12-37 | |
| » Starters: Sal Maglie vs Murry Dickson | Eighth | 22½ out |
| Saturday, June 7 |
| » Lost to Giants (29-16), 7-5 | Forbes Field (10-23) | 12-38 | |
| » Starters: Jim Hearn vs Joe Muir | Eighth | 23½ out |
| Sunday, June 8 |
| » Lost to Giants (30-16), 9-1 | Forbes Field (10-24) | 12-39 | Lost 2 |
| » Starters: Larry Jansen vs Howie Pollet | Eighth | 25 out |
| Monday, June 9 |
| » Lost to Braves (19-27), 3-2 | Forbes Field (10-25) | 12-40 | Lost 3 |
| » Starters: Jim Wilson vs Bob Friend | Eighth | 26 out |
| Tuesday, June 10 |
| » Defeated Braves (19-28), 7-5 | Forbes Field (11-25) | 13-40 | |
| » Starters: Warren Spahn vs Ron Kline | Eighth | 25 out |
| Wednesday, June 11 |
| » Defeated Braves (19-29), 5-0 | Forbes Field (12-25) | 14-40 | Won 2 |
| » Starters: Max Surkont vs Murry Dickson | Eighth | 24 out |
| Thursday, June 12 |
| » Lost to Braves (20-29), 11-2 | Forbes Field (12-26) | 14-41 | |
| » Starters: Ernie Johnson vs Joe Muir | Eighth | 24 out |
| Saturday, June 14 |
| » Lost to Phillies (20-29), 4-2 | Shibe Park (0-3) | 14-42 | Lost 2 |
| » Starters: Bob Friend vs Russ Meyer | Eighth | 25½ out |
| Sunday, June 15 |
| » Defeated Phillies (20-30), 6-0 | Shibe Park (1-3) | 15-42 | |
| » Starters: Howie Pollet vs Karl Drews | Eighth | 25 out |
| » Lost to Phillies (21-30), 6-3 | Shibe Park (1-4) | 15-43 | |
| » Starters: Murry Dickson vs Howie Fox | Eighth | 25 out |
| Monday, June 16 |
| » Lost to Phillies (22-30), 5-4 | Shibe Park (1-5) | 15-44 | Lost 2 |
| » Starters: Ron Kline vs Steve Ridzik | Eighth | 25½ out |
| Tuesday, June 17 |
| » Defeated Giants (34-19), 6-2 | Polo Grounds V (1-1) | 16-44 | |
| » Starters: Woody Main vs Hal Gregg | Seventh | 25½ out |
| Wednesday, June 18 |
| » Lost to Giants (35-19), 5-2 | Polo Grounds V (1-2) | 16-45 | |
| » Starters: Bob Friend vs Jim Hearn | Eighth | 26½ out |
| Thursday, June 19 |
| » Defeated Giants (35-20), 8-1 | Polo Grounds V (2-2) | 17-45 | |
| » Starters: Murry Dickson vs Larry Jansen | Eighth | 26½ out |
| » Major-league debuts: Dick Groat (Pirates) |
| Friday, June 20 |
| » Lost to Dodgers (41-15), 5-4 | Ebbets Field (0-4) | 17-46 | |
| » Starters: Howie Pollet vs Ben Wade | Eighth | 27½ out |
| Saturday, June 21 |
| » Lost to Dodgers (42-15), 14-4 | Ebbets Field (0-5) | 17-47 | Lost 2 |
| » Starters: Woody Main vs Billy Loes | Eighth | 28½ out |
| Monday, June 23 |
| » Lost to Braves (25-37), 9-3 | Braves Field (0-3) | 17-48 | Lost 3 |
| » Starters: Bob Friend vs Dave Cole | Eighth | 29 out |
| Tuesday, June 24 |
| » Lost to Braves (26-37), 4-3 | Braves Field (0-4) | 17-49 | Lost 4 |
| » Starters: Murry Dickson vs Jim Wilson | Eighth | 29½ out |
| Wednesday, June 25 |
| » Lost to Braves (27-37), 5-2 | Braves Field (0-5) | 17-50 | Lost 5 |
| » Starters: Howie Pollet vs Max Surkont | Eighth | 30½ out |
| Friday, June 27 |
| » Lost to Cardinals (36-33), 6-4 | Forbes Field (12-27) | 17-51 | Lost 6 |
| » Starters: Vinegar Bend Mizell vs Woody Main | Eighth | 31 out |
| Saturday, June 28 |
| » Lost to Cardinals (37-33), 4-3 | Forbes Field (12-28) | 17-52 | Lost 7 |
| » Starters: Joe Presko vs Murry Dickson | Eighth | 32 out |
| Sunday, June 29 |
| » Defeated Cardinals (37-34), 2-1 | Forbes Field (13-28) | 18-52 | |
| » Starters: Cloyd Boyer vs Howie Pollet | Eighth | 32 out |
| Monday, June 30 |
| » Lost to Cubs (38-30), 5-4 | Wrigley Field (1-3) | 18-53 | |
| » Starters: Bob Friend vs Bob Kelly | Eighth | 32 out |
| Tuesday, July 1 |
| » Defeated Cubs (38-31), 3-2 | Wrigley Field (2-3) | 19-53 | |
| » Starters: Woody Main vs Willie Ramsdell | Eighth | 32 out |
| Wednesday, July 2 |
| » Lost to Cubs (39-31), 8-3 | Wrigley Field (2-4) | 19-54 | |
| » Starters: Murry Dickson vs Paul Minner | Eighth | 32 out |
| » Lost to Cubs (40-31), 3-0 | Wrigley Field (2-5) | 19-55 | Lost 2 |
| » Starters: Ron Kline vs Warren Hacker | Eighth | 32 out |
| Thursday, July 3 |
| » Lost to Reds (32-40), 5-1 | Crosley Field (0-4) | 19-56 | Lost 3 |
| » Starters: Howie Pollet vs Bubba Church | Eighth | 32 out |
| Friday, July 4 |
| » Defeated Reds (32-41), 4-2 | Crosley Field (1-4) | 20-56 | |
| » Starters: Bob Friend vs Harry Perkowski | Eighth | 31½ out |
| » Defeated Reds (32-42), 5-2 | Crosley Field (2-4) | 21-56 | Won 2 |
| » Starters: Harry Fisher vs Frank Hiller | Eighth | 31½ out |
| Saturday, July 5 |
| » Lost to Cardinals (44-34), 5-0 | Sportsman's Park III (1-3) | 21-57 | |
| » Starters: Woody Main vs Al Brazle | Eighth | 32½ out |
| Sunday, July 6 |
| » Lost to Cardinals (45-34), 6-5 | Sportsman's Park III (1-4) | 21-58 | Lost 2 |
| » Starters: Murry Dickson vs Vinegar Bend Mizell | Eighth | 34 out |
| » Lost to Cardinals (46-34), 6-4 | Sportsman's Park III (1-5) | 21-59 | Lost 3 |
| » Starters: Paul LaPalme vs Cliff Chambers | Eighth | 34 out |
| Thursday, July 10 |
| » Defeated Giants (47-27), 6-4 | Forbes Field (14-28) | 22-59 | |
| » Starters: Jim Hearn vs Howie Pollet | Eighth | 33 out |
| Friday, July 11 |
| » Defeated Giants (47-28), 6-2 | Forbes Field (15-28) | 23-59 | Won 2 |
| » Starters: Sal Maglie vs Murry Dickson | Eighth | 33 out |
| Saturday, July 12 |
| » Lost to Braves (32-47), 5-2 | Forbes Field (15-29) | 23-60 | |
| » Starters: Vern Bickford vs Bob Friend | Eighth | 34 out |
| Sunday, July 13 |
| » Lost to Braves (33-47), 4-2 | Forbes Field (15-30) | 23-61 | Lost 2 |
| » Starters: Max Surkont vs Harry Fisher | Eighth | 35 out |
| » Lost to Braves (34-47), 2-1 | Forbes Field (15-31) | 23-62 | Lost 3 |
| » Starters: Virgil Jester vs Woody Main | Eighth | 35 out |
| Monday, July 14 |
| » Major-league debuts: Bobby Tiefenauer (Cardinals) |
| Tuesday, July 15 |
| » Lost to Phillies (39-42), 10-3 | Forbes Field (15-32) | 23-63 | Lost 4 |
| » Starters: Curt Simmons vs Howie Pollet | Eighth | 36 out |
| » Major-league debuts: Cal Hogue (Pirates) |
| Wednesday, July 16 |
| » Lost to Phillies (40-42), 8-7 | Forbes Field (15-33) | 23-64 | Lost 5 |
| » Starters: Robin Roberts vs Murry Dickson | Eighth | 37 out |
| Thursday, July 17 |
| » Defeated Phillies (40-43), 2-1 | Forbes Field (16-33) | 24-64 | |
| » Starters: Russ Meyer vs Cal Hogue | Eighth | 36½ out |
| » Defeated Phillies (40-44), 4-2 | Forbes Field (17-33) | 25-64 | Won 2 |
| » Starters: Karl Drews vs Woody Main | Eighth | 36½ out |
| Friday, July 18 |
| » Lost to Dodgers (57-22), 6-2 | Forbes Field (17-34) | 25-65 | |
| » Starters: Billy Loes vs Bob Friend | Eighth | 37½ out |
| Saturday, July 19 |
| » Lost to Dodgers (58-22), 9-1 | Forbes Field (17-35) | 25-66 | Lost 2 |
| » Starters: Carl Erskine vs Howie Pollet | Eighth | 38½ out |
| Sunday, July 20 |
| » Lost to Dodgers (59-22), 8-5 | Forbes Field (17-36) | 25-67 | Lost 3 |
| » Starters: Ben Wade vs Murry Dickson | Eighth | 39½ out |
| Tuesday, July 22 |
| » Lost to Phillies (44-45), 14-4 | Shibe Park (1-6) | 25-68 | Lost 4 |
| » Starters: Cal Hogue vs Russ Meyer | Eighth | 41 out |
| » Lost to Phillies (45-45), 8-1 | Shibe Park (1-7) | 25-69 | Lost 5 |
| » Starters: Woody Main vs Karl Drews | Eighth | 41 out |
| Wednesday, July 23 |
| » Lost to Phillies (46-45), 4-1 | Shibe Park (1-8) | 25-70 | Lost 6 |
| » Starters: Bob Friend vs Steve Ridzik | Eighth | 41 out |
| Friday, July 25 |
| » Defeated Braves (39-52), 3-2 | Braves Field (1-5) | 26-70 | |
| » Starters: Murry Dickson vs Warren Spahn | Eighth | 40 out |
| Saturday, July 26 |
| » Defeated Braves (39-53), 6-4 | Braves Field (2-5) | 27-70 | Won 2 |
| » Starters: Howie Pollet vs Virgil Jester | Eighth | 39 out |
| Sunday, July 27 |
| » Lost to Braves (40-53), 5-2 | Braves Field (2-6) | 27-71 | |
| » Starters: Cal Hogue vs Vern Bickford | Eighth | 39 out |
| » Tied Braves, 3-3 | Braves Field (2-6) | 27-71 | |
| » Starters: Woody Main vs Max Surkont | Eighth | 39 out |
| Tuesday, July 29 |
| » Defeated Dodgers (61-29), 7-1 | Ebbets Field (1-5) | 28-71 | |
| » Starters: Murry Dickson vs Billy Loes | Eighth | 37½ out |
| Wednesday, July 30 |
| » Lost to Dodgers (62-29), 4-3 | Ebbets Field (1-6) | 28-72 | |
| » Starters: Howie Pollet vs Carl Erskine | Eighth | 38½ out |
| Future Pirate Mickey Mahler is born in Montgomery, AL. |
| Thursday, July 31 |
| » Lost to Dodgers (63-29), 7-6 | Ebbets Field (1-7) | 28-73 | Lost 2 |
| » Starters: Cal Hogue vs Johnny Rutherford | Eighth | 40½ out |
| » Lost to Dodgers (64-29), 4-1 | Ebbets Field (1-8) | 28-74 | Lost 3 |
| » Starters: Woody Main vs Joe Landrum | Eighth | 40½ out |
| Friday, August 1 |
| » Lost to Giants (59-35), 7-3 | Polo Grounds V (2-3) | 28-75 | Lost 4 |
| » Starters: Harry Fisher vs Jim Hearn | Eighth | 40½ out |
| Saturday, August 2 |
| » Lost to Giants (60-35), 4-3 | Polo Grounds V (2-4) | 28-76 | Lost 5 |
| » Starters: Murry Dickson vs Larry Jansen | Eighth | 41 out |
| Sunday, August 3 |
| » Defeated Giants (60-36), 7-0 | Polo Grounds V (3-4) | 29-76 | |
| » Starters: Paul LaPalme vs Max Lanier | Eighth | 41 out |
| » Defeated Giants (60-37), 10-8 | Polo Grounds V (4-4) | 30-76 | Won 2 |
| » Starters: Howie Pollet vs Larry Jansen | Eighth | 41 out |
| Tuesday, August 5 |
| » Lost to Cardinals (59-44), 4-3 | Forbes Field (17-37) | 30-77 | |
| » Starters: Vinegar Bend Mizell vs Cal Hogue | Eighth | 41 out |
| Wednesday, August 6 |
| » Lost to Cardinals (60-44), 7-2 | Forbes Field (17-38) | 30-78 | Lost 2 |
| » Starters: Gerry Staley vs Bob Friend | Eighth | 42 out |
| » Lost to Cardinals (61-44), 3-2 | Forbes Field (17-39) | 30-79 | Lost 3 |
| » Starters: Cloyd Boyer vs Woody Main | Eighth | 42 out |
| Friday, August 8 |
| » Defeated Cubs (52-52), 1-0 | Forbes Field (18-39) | 31-79 | |
| » Starters: Bob Rush vs Murry Dickson | Eighth | 42 out |
| Saturday, August 9 |
| » Defeated Cubs (52-53), 4-3 | Forbes Field (19-39) | 32-79 | Won 2 |
| » Starters: Johnny Klippstein vs Jim Waugh | Eighth | 42½ out |
| Sunday, August 10 |
| » Lost to Cubs (53-53), 9-5 | Forbes Field (19-40) | 32-80 | |
| » Starters: Warren Hacker vs Ron Necciai | Eighth | 43½ out |
| » Lost to Cubs (54-53), 4-3 | Forbes Field (19-41) | 32-81 | Lost 2 |
| » Starters: Paul Minner vs Howie Pollet | Eighth | 43½ out |
| » Major-league debuts: Ron Necciai (Pirates) |
| Monday, August 11 |
| » Lost to Reds (47-64), 10-4 | Forbes Field (19-42) | 32-82 | Lost 3 |
| » Starters: Herm Wehmeier vs Cal Hogue | Eighth | 44 out |
| Tuesday, August 12 |
| » Major-league debuts: Stu Miller (Cardinals) |
| Thursday, August 14 |
| » Defeated Cardinals (64-49), 5-3 | Sportsman's Park III (2-5) | 33-82 | |
| » Starters: Murry Dickson vs Joe Presko | Eighth | 43 out |
| Friday, August 15 |
| » Lost to Cardinals (65-49), 5-4 | Sportsman's Park III (2-6) | 33-83 | |
| » Starters: Ron Necciai vs Mike Clark | Eighth | 43 out |
| Saturday, August 16 |
| » Defeated Cubs (56-57), 2-1 | Wrigley Field (3-5) | 34-83 | |
| » Starters: Howie Pollet vs Paul Minner | Eighth | 43 out |
| Future Pirate Al Holland is born in Roanoke, VA. |
| Sunday, August 17 |
| » Lost to Cubs (57-57), 5-2 | Wrigley Field (3-6) | 34-84 | |
| » Starters: Jim Waugh vs Bob Rush | Eighth | 42½ out |
| » Defeated Cubs (57-58), 5-2 | Wrigley Field (4-6) | 35-84 | |
| » Starters: Bob Friend vs Bob Kelly | Eighth | 42½ out |
| Monday, August 18 |
| » Lost to Cubs (58-58), 4-3 | Wrigley Field (4-7) | 35-85 | |
| » Starters: Murry Dickson vs Turk Lown | Eighth | 43 out |
| Tuesday, August 19 |
| » Lost to Phillies (62-53), 10-5 | Forbes Field (19-43) | 35-86 | Lost 2 |
| » Starters: Robin Roberts vs Ron Necciai | Eighth | 43½ out |
| Wednesday, August 20 |
| » Lost to Phillies (63-53), 3-1 | Forbes Field (19-44) | 35-87 | Lost 3 |
| » Starters: Russ Meyer vs Cal Hogue | Eighth | 44½ out |
| Friday, August 22 |
| » Lost to Dodgers (76-38), 9-2 | Forbes Field (19-45) | 35-88 | Lost 4 |
| » Starters: Ben Wade vs Howie Pollet | Eighth | 44½ out |
| » Defeated Dodgers (76-39), 3-2 | Forbes Field (20-45) | 36-88 | |
| » Starters: Joe Landrum vs Murry Dickson | Eighth | 44½ out |
| » Major-league debuts: Sandy Amoros (Dodgers) |
| Saturday, August 23 |
| » Lost to Dodgers (77-39), 3-2 | Forbes Field (20-46) | 36-89 | |
| » Starters: Clem Labine vs Jim Waugh | Eighth | 45½ out |
| Sunday, August 24 |
| » Defeated Braves (51-68), 4-3 | Forbes Field (21-46) | 37-89 | |
| » Starters: Virgil Jester vs Ron Necciai | Eighth | 46 out |
| » Lost to Braves (52-68), 5-3 | Forbes Field (21-47) | 37-90 | |
| » Starters: Lew Burdette vs Cal Hogue | Eighth | 46 out |
| Tuesday, August 26 |
| » Lost to Giants (71-50), 14-7 | Forbes Field (21-48) | 37-91 | Lost 2 |
| » Starters: Jim Hearn vs Murry Dickson | Eighth | 48 out |
| Wednesday, August 27 |
| » Lost to Giants (72-50), 5-4 | Forbes Field (21-49) | 37-92 | Lost 3 |
| » Starters: Bill Connelly vs Howie Pollet | Eighth | 48 out |
| Future Pirate Mike Edwards is born in Fort Lewis, WA. |
| Thursday, August 28 |
| » Lost to Giants (73-50), 14-7 | Forbes Field (21-50) | 37-93 | Lost 4 |
| » Starters: Dave Koslo vs Jim Waugh | Eighth | 49 out |
| Saturday, August 30 |
| » Lost to Cardinals (73-55), 12-2 | Forbes Field (21-51) | 37-94 | Lost 5 |
| » Starters: Gerry Staley vs Ron Necciai | Eighth | 48½ out |
| Former Pirate Arky Vaughan dies in Eagleville, CA at the age of 41. |
| Sunday, August 31 |
| » Defeated Cardinals (73-56), 4-2 | Forbes Field (22-51) | 38-94 | |
| » Starters: Stu Miller vs Murry Dickson | Eighth | 48½ out |
| Monday, September 1 |
| » Lost to Cubs (66-67), 6-0 | Forbes Field (22-52) | 38-95 | |
| » Starters: Johnny Klippstein vs Howie Pollet | Eighth | 48½ out |
| » Defeated Cubs (66-68), 5-4 | Forbes Field (23-52) | 39-95 | |
| » Starters: Bob Kelly vs Cal Hogue | Eighth | 48½ out |
| Wednesday, September 3 |
| » Lost to Reds (58-75), 1-0 | Crosley Field (2-5) | 39-96 | |
| » Starters: Ron Necciai vs Ken Raffensberger | Eighth | 48½ out |
| Thursday, September 4 |
| » Lost to Reds (59-75), 7-2 | Crosley Field (2-6) | 39-97 | Lost 2 |
| » Starters: Jim Waugh vs Herm Wehmeier | Eighth | 48½ out |
| Friday, September 5 |
| » Lost to Cardinals (77-57), 4-0 | Sportsman's Park III (2-7) | 39-98 | Lost 3 |
| » Starters: Bill Bell vs Vinegar Bend Mizell | Eighth | 48½ out |
| Saturday, September 6 |
| » Lost to Cardinals (78-57), 7-4 | Sportsman's Park III (2-8) | 39-99 | Lost 4 |
| » Starters: Murry Dickson vs Harvey Haddix | Eighth | 48 out |
| Sunday, September 7 |
| » Lost to Cardinals (79-57), 4-3 | Sportsman's Park III (2-9) | 39-100 | Lost 5 |
| » Starters: Howie Pollet vs Gerry Staley | Eighth | 49 out |
| Tuesday, September 9 |
| » Lost to Giants (82-54), 11-6 | Polo Grounds V (4-5) | 39-101 | Lost 6 |
| » Starters: Cal Hogue vs Bill Connelly | Eighth | 49 out |
| Wednesday, September 10 |
| » Lost to Giants (83-54), 3-2 | Polo Grounds V (4-6) | 39-102 | Lost 7 |
| » Starters: Murry Dickson vs Jim Hearn | Eighth | 50½ out |
| Thursday, September 11 |
| » Lost to Giants (84-54), 5-4 | Polo Grounds V (4-7) | 39-103 | Lost 8 |
| » Starters: Howie Pollet vs Sal Maglie | Eighth | 50½ out |
| Friday, September 12 |
| » Defeated Braves (60-79), 8-1 | Braves Field (3-6) | 40-103 | |
| » Starters: Bob Friend vs Virgil Jester | Eighth | 51 out |
| » Lost to Braves (61-79), 16-0 | Braves Field (3-7) | 40-104 | |
| » Starters: Ron Necciai vs Ernie Johnson | Eighth | 51 out |
| Saturday, September 13 |
| » Lost to Braves (62-79), 8-0 | Braves Field (3-8) | 40-105 | Lost 2 |
| » Starters: Ron Kline vs Warren Spahn | Eighth | 51 out |
| Sunday, September 14 |
| » Lost to Phillies (77-65), 5-2 | Shibe Park (1-9) | 40-106 | Lost 3 |
| » Starters: Cal Hogue vs Curt Simmons | Eighth | 51½ out |
| » Lost to Phillies (78-65), 2-1 | Shibe Park (1-10) | 40-107 | Lost 4 |
| » Starters: Jim Waugh vs Russ Meyer | Eighth | 51½ out |
| Tuesday, September 16 |
| » Lost to Dodgers (91-53), 4-2 | Ebbets Field (1-9) | 40-108 | Lost 5 |
| » Starters: Murry Dickson vs Billy Loes | Eighth | 53 out |
| Former Pirate Earl Sheely dies in Seattle, WA at the age of 60. |
| Wednesday, September 17 |
| » Defeated Dodgers (91-54), 4-1 | Ebbets Field (2-9) | 41-108 | |
| » Starters: Howie Pollet vs Ben Wade | Eighth | 52 out |
| Friday, September 19 |
| » Lost to Reds (65-82), 4-3 | Forbes Field (23-53) | 41-109 | |
| » Starters: Herm Wehmeier vs Bob Friend | Eighth | 53 out |
| Sunday, September 21 |
| » Lost to Reds (66-82), 4-3 | Forbes Field (23-54) | 41-110 | Lost 2 |
| » Starters: Bud Podbielan vs Ron Necciai | Eighth | 54½ out |
| Tuesday, September 23 |
| Future Pirate Jim Morrison is born in Pensacola, FL. |
| Friday, September 26 |
| » Lost to Reds (68-84), 5-0 | Crosley Field (2-7) | 41-111 | Lost 3 |
| » Starters: Cal Hogue vs Bud Podbielan | Eighth | 55 out |
| Saturday, September 27 |
| » Defeated Reds (68-85), 9-6 | Crosley Field (3-7) | 42-111 | |
| » Starters: Jim Waugh vs Bubba Church | Eighth | 54 out |
| Sunday, September 28 |
| » Lost to Reds (69-85), 3-2 | Crosley Field (3-8) | 42-112 | |
| » Starters: Ron Necciai vs Ken Raffensberger | Eighth | 54½ out |
| Friday, October 24 |
| Future Pirate Omar Moreno is born in Puerto Armuelles, Panama. |
| Wednesday, November 26 |