| Wednesday, January 24 |
| Future Pirate Walt Judnich is born in San Francisco, CA. |
| Sunday, March 4 |
| Future Pirate Clyde McCullough is born in Nashville, TN. |
| Thursday, March 8 |
| Future Pirate Bill Salkeld is born in Pocatello, ID. |
| Friday, March 23 |
| Former Pirate Art Weaver dies in Denver, CO at the age of 38. |
| Wednesday, April 11 |
| » Lost to Cubs (1-0), 5-3 | Wrigley Field (0-1) | 0-1 | |
| » Starters: Elmer Jacobs vs Hippo Vaughn | Third | 1 out |
| » Major-league debuts: Chuck Ward (Pirates) |
| Thursday, April 12 |
| » Lost to Cubs (2-0), 2-0 | Wrigley Field (0-2) | 0-2 | Lost 2 |
| » Starters: Wilbur Cooper vs Phil Douglas | Fourth | 2 out |
| Friday, April 13 |
| » Lost to Cubs (3-0), 6-1 | Wrigley Field (0-3) | 0-3 | Lost 3 |
| » Starters: Al Mamaux vs Dutch Ruether | Sixth | 3 out |
| » Major-league debuts: Dutch Ruether (Cubs) Hal Carlson (Pirates) |
| Saturday, April 14 |
| » Defeated Cubs (3-1), 4-2 | Wrigley Field (1-3) | 1-3 | |
| » Starters: Frank Miller vs Claude Hendrix | Fourth | 2 out |
| Sunday, April 15 |
| » Lost to Reds (3-2), 5-2 | Crosley Field (0-1) | 1-4 | |
| » Starters: Al Mamaux vs Fred Toney | Third | 2½ out |
| Monday, April 16 |
| » Defeated Reds (3-3), 8-4 | Crosley Field (1-1) | 2-4 | |
| » Starters: Wilbur Cooper vs Clarence Mitchell | Sixth | 2½ out |
| » Major-league debuts: Hod Eller (Reds) |
| Tuesday, April 17 |
| » Lost to Reds (4-3), 3-2 | Crosley Field (1-2) | 2-5 | |
| » Starters: Frank Miller vs Pete Schneider | Seventh | 3½ out |
| Wednesday, April 18 |
| » Lost to Reds (5-3), 7-5 | Crosley Field (1-3) | 2-6 | Lost 2 |
| » Starters: Al Mamaux vs Roy Sanders | Sixth | 3½ out |
| Thursday, April 19 |
| » Lost to Cubs (5-3), 10-3 | Forbes Field (0-1) | 2-7 | Lost 3 |
| » Starters: Claude Hendrix vs Wilbur Cooper | Sixth | 4½ out |
| Friday, April 20 |
| » Defeated Cubs (5-4), 6-1 | Forbes Field (1-1) | 3-7 | |
| » Starters: Al Demaree vs Burleigh Grimes | Seventh | 3½ out |
| Saturday, April 21 |
| » Lost to Cubs (6-4), 2-1 | Forbes Field (1-2) | 3-8 | |
| » Starters: Hippo Vaughn vs Frank Miller | Seventh | 4½ out |
| Sunday, April 22 |
| » Lost to Cardinals (8-3), 4-1 | Robison Field (0-1) | 3-9 | Lost 2 |
| » Starters: Al Mamaux vs Bill Doak | Eighth | 5 out |
| Monday, April 23 |
| » Defeated Cardinals (8-4), 2-0 | Robison Field (1-1) | 4-9 | |
| » Starters: Wilbur Cooper vs Milt Watson | Eighth | 4½ out |
| Tuesday, April 24 |
| » Lost to Cardinals (9-4), 2-1 | Robison Field (1-2) | 4-10 | |
| » Starters: Burleigh Grimes vs Red Ames | Eighth | 5½ out |
| Wednesday, April 25 |
| » Defeated Cardinals (9-5), 10-8 | Robison Field (2-2) | 5-10 | |
| » Starters: Frank Miller vs Lee Meadows | Seventh | 5½ out |
| Friday, April 27 |
| » Lost to Reds (9-8), 5-3 | Forbes Field (1-3) | 5-11 | |
| » Starters: Fred Toney vs Frank Miller | Eighth | 5½ out |
| Saturday, April 28 |
| » Defeated Reds (9-9), 2-0 | Forbes Field (2-3) | 6-11 | |
| » Starters: Roy Sanders vs Burleigh Grimes | Seventh | 4½ out |
| Sunday, April 29 |
| » Defeated Reds (9-10), 3-0 | Crosley Field (2-3) | 7-11 | Won 2 |
| » Starters: Hal Carlson vs Pete Schneider | Seventh | 4 out |
| Tuesday, May 1 |
| Future Pirate Johnny Berardino is born in Los Angeles, CA. |
| Wednesday, May 2 |
| » Lost to Cardinals (10-7), 4-0 | Forbes Field (2-4) | 7-12 | |
| » Starters: Red Ames vs Burleigh Grimes | Seventh | 4½ out |
| Thursday, May 3 |
| » Lost to Cardinals (11-7), 4-3 | Forbes Field (2-5) | 7-13 | Lost 2 |
| » Starters: Bob Steele vs Al Mamaux | Eighth | 4½ out |
| Sunday, May 6 |
| » Lost to Cubs (13-9), 3-2 | Wrigley Field (1-4) | 7-14 | Lost 3 |
| » Starters: Hal Carlson vs Hippo Vaughn | Eighth | 6 out |
| Monday, May 7 |
| » Lost to Cubs (14-9), 4-1 | Wrigley Field (1-5) | 7-15 | Lost 4 |
| » Starters: Burleigh Grimes vs Tom Seaton | Eighth | 6 out |
| Thursday, May 10 |
| » Defeated Braves (7-9), 11-4 | Braves Field (1-0) | 8-15 | |
| » Starters: Al Mamaux vs Jesse Barnes | Seventh | 6½ out |
| Friday, May 11 |
| » Lost to Braves (8-9), 3-2 | Braves Field (1-1) | 8-16 | |
| » Starters: Hal Carlson vs Dick Rudolph | Seventh | 7½ out |
| Monday, May 14 |
| » Lost to Phillies (12-8), 3-2 | Baker Bowl (0-1) | 8-17 | Lost 2 |
| » Starters: Elmer Jacobs vs Pete Alexander | Seventh | 8 out |
| Tuesday, May 15 |
| » Lost to Phillies (13-8), 8-2 | Baker Bowl (0-2) | 8-18 | Lost 3 |
| » Starters: Burleigh Grimes vs Erskine Mayer | Seventh | 10½ out |
| Wednesday, May 16 |
| » Defeated Phillies (13-9), 12-4 | Baker Bowl (1-2) | 9-18 | |
| » Starters: Wilbur Cooper vs Joe Oeschger | Seventh | 10½ out |
| Thursday, May 17 |
| » Lost to Phillies (14-9), 8-6 | Baker Bowl (1-3) | 9-19 | |
| » Starters: Hal Carlson vs Eppa Rixey | Eighth | 11½ out |
| Friday, May 18 |
| » Lost to Giants (15-7), 8-1 | Polo Grounds V (0-1) | 9-20 | Lost 2 |
| » Starters: Burleigh Grimes vs Slim Sallee | Seventh | 11½ out |
| Saturday, May 19 |
| » Defeated Giants (15-8), 5-4 | Polo Grounds V (1-1) | 10-20 | |
| » Starters: Wilbur Cooper vs Pol Perritt | Seventh | 10½ out |
| Monday, May 21 |
| » Lost to Giants (16-8), 4-3 | Polo Grounds V (1-2) | 10-21 | |
| » Starters: Elmer Jacobs vs Jeff Tesreau | Seventh | 9½ out |
| Tuesday, May 22 |
| » Defeated Giants (16-9), 2-0 | Polo Grounds V (2-2) | 11-21 | |
| » Starters: Frank Miller vs Fred Anderson | Eighth | 9½ out |
| Thursday, May 24 |
| » Lost to Dodgers (11-15), 6-0 | Ebbets Field (0-1) | 11-22 | |
| » Starters: Burleigh Grimes vs Jeff Pfeffer | Eighth | 10 out |
| Friday, May 25 |
| » Lost to Dodgers (12-15), 4-3 | Ebbets Field (0-2) | 11-23 | Lost 2 |
| » Starters: Wilbur Cooper vs Leon Cadore | Eighth | 11 out |
| Saturday, May 26 |
| » Lost to Dodgers (13-15), 4-1 | Ebbets Field (0-3) | 11-24 | Lost 3 |
| » Starters: Frank Miller vs Rube Marquard | Eighth | 12 out |
| Wednesday, May 30 |
| » Lost to Cubs (25-15), 6-5 | Forbes Field (2-6) | 11-25 | Lost 4 |
| » Starters: Claude Hendrix vs Wilbur Cooper | Eighth | 11 out |
| » Defeated Cubs (25-16), 2-1 | Forbes Field (3-6) | 12-25 | |
| » Starters: Al Demaree vs Hal Carlson | Eighth | 11 out |
| » Major-league debuts: Jake Pitler (Pirates) |
| Thursday, May 31 |
| » Defeated Phillies (21-13), 3-2 | Forbes Field (4-6) | 13-25 | Won 2 |
| » Starters: Eppa Rixey vs Al Mamaux | Eighth | 10½ out |
| Friday, June 1 |
| » Lost to Phillies (22-13), 9-1 | Forbes Field (4-7) | 13-26 | |
| » Starters: Erskine Mayer vs Frank Miller | Eighth | 11½ out |
| Saturday, June 2 |
| » Lost to Phillies (23-13), 9-1 | Forbes Field (4-8) | 13-27 | Lost 2 |
| » Starters: Pete Alexander vs Burleigh Grimes | Eighth | 12½ out |
| Monday, June 4 |
| » Defeated Phillies (23-14), 5-1 | Forbes Field (5-8) | 14-27 | |
| » Starters: Jimmy Lavender vs Elmer Jacobs | Eighth | 12 out |
| Thursday, June 7 |
| » Lost to Dodgers (15-20), 5-3 | Forbes Field (5-9) | 14-28 | |
| » Starters: Jeff Pfeffer vs Al Mamaux | Seventh | 12 out |
| Friday, June 8 |
| » Defeated Dodgers (15-21), 5-4 | Forbes Field (6-9) | 15-28 | |
| » Starters: Rube Marquard vs Wilbur Cooper | Eighth | 12 out |
| Saturday, June 9 |
| » Lost to Braves (15-22), 6-5 | Forbes Field (6-10) | 15-29 | |
| » Starters: Lefty Tyler vs Burleigh Grimes | Seventh | 12½ out |
| Monday, June 11 |
| » Lost to Braves (16-22), 2-0 | Forbes Field (6-11) | 15-30 | Lost 2 |
| » Starters: Art Nehf vs Frank Miller | Eighth | 13 out |
| Tuesday, June 12 |
| » Defeated Braves (16-23), 5-4 | Forbes Field (7-11) | 16-30 | |
| » Starters: Frank Allen vs Wilbur Cooper | Eighth | 13 out |
| Wednesday, June 13 |
| » Lost to Giants (28-16), 7-3 | Forbes Field (7-12) | 16-31 | |
| » Starters: Fred Anderson vs Burleigh Grimes | Eighth | 14 out |
| Thursday, June 14 |
| » Lost to Giants (29-16), 2-0 | Forbes Field (7-13) | 16-32 | Lost 2 |
| » Starters: Pol Perritt vs Elmer Jacobs | Eighth | 14½ out |
| Saturday, June 16 |
| » Lost to Giants (30-16), 4-1 | Forbes Field (7-14) | 16-33 | Lost 3 |
| » Starters: Rube Benton vs Frank Miller | Eighth | 15½ out |
| Monday, June 18 |
| » Defeated Cardinals (28-24), 4-0 | Robison Field (3-2) | 17-33 | |
| » Starters: Wilbur Cooper vs Gene Packard | Eighth | 15 out |
| Tuesday, June 19 |
| » Defeated Cardinals (28-25), 7-3 | Robison Field (4-2) | 18-33 | Won 2 |
| » Starters: Elmer Jacobs vs Lee Meadows | Eighth | 15 out |
| Wednesday, June 20 |
| » Tied Cardinals, 4-4 | Robison Field (4-2) | 18-33 | |
| » Starters: Hal Carlson vs Bill Doak | Eighth | 15 out |
| Thursday, June 21 |
| » Lost to Cubs (33-27), 12-4 | Forbes Field (7-15) | 18-34 | |
| » Starters: Claude Hendrix vs Frank Miller | Eighth | 16 out |
| Friday, June 22 |
| » Defeated Cubs (33-28), 4-3 | Forbes Field (8-15) | 19-34 | |
| » Starters: Al Demaree vs Wilbur Cooper | Eighth | 15 out |
| Saturday, June 23 |
| » Lost to Cubs (34-28), 2-0 | Forbes Field (8-16) | 19-35 | |
| » Starters: Phil Douglas vs Elmer Jacobs | Eighth | 15½ out |
| » Lost to Cubs (35-28), 6-4 | Forbes Field (8-17) | 19-36 | Lost 2 |
| » Starters: Dutch Ruether vs Bob Steele | Eighth | 15½ out |
| Sunday, June 24 |
| » Lost to Cubs (36-28), 2-1 | Wrigley Field (1-6) | 19-37 | Lost 3 |
| » Starters: Al Mamaux vs Hippo Vaughn | Eighth | 16 out |
| Future Pirate Al Gerheauser is born in St. Louis, MO. |
| Tuesday, June 26 |
| » Lost to Reds (32-35), 6-5 | Forbes Field (8-18) | 19-38 | Lost 4 |
| » Starters: Pete Schneider vs Wilbur Cooper | Eighth | 16½ out |
| Wednesday, June 27 |
| » Lost to Reds (33-35), 6-5 | Forbes Field (8-19) | 19-39 | Lost 5 |
| » Starters: Mike Regan vs Elmer Jacobs | Eighth | 17 out |
| Thursday, June 28 |
| » Defeated Reds (33-36), 6-2 | Forbes Field (9-19) | 20-39 | |
| » Starters: Fred Toney vs Bob Steele | Eighth | 17 out |
| Friday, June 29 |
| » Lost to Reds (34-36), 1-0 | Forbes Field (9-20) | 20-40 | |
| » Starters: Clarence Mitchell vs Al Mamaux | Eighth | 17½ out |
| Saturday, June 30 |
| » Defeated Reds (34-37), 5-4 | Forbes Field (10-20) | 21-40 | |
| » Manager: Honus Wagner |
| » Starters: Pete Schneider vs Wilbur Cooper | Eighth | 17½ out |
| Sunday, July 1 |
| » Lost to Reds (35-37), 4-1 | Crosley Field (2-4) | 21-41 | |
| » Starters: Elmer Jacobs vs Fred Toney | Eighth | 18½ out |
| » Lost to Reds (36-37), 5-1 | Crosley Field (2-5) | 21-42 | Lost 2 |
| » Starters: Bob Steele vs Fred Toney | Eighth | 18½ out |
| Monday, July 2 |
| » Lost to Cardinals (36-31), 6-4 | Forbes Field (10-21) | 21-43 | Lost 3 |
| » Starters: Oscar Horstmann vs Al Mamaux | Eighth | 19½ out |
| Tuesday, July 3 |
| » Lost to Cardinals (37-31), 8-6 | Forbes Field (10-22) | 21-44 | Lost 4 |
| » Starters: Lee Meadows vs Hal Carlson | Eighth | 20 out |
| Wednesday, July 4 |
| » Lost to Cardinals (38-31), 4-3 | Forbes Field (10-23) | 21-45 | Lost 5 |
| » Manager: Hugo Bezdek |
| » Starters: Milt Watson vs Elmer Jacobs | Eighth | 22 out |
| » Lost to Cardinals (39-31), 4-1 | Forbes Field (10-24) | 21-46 | Lost 6 |
| » Starters: Bill Doak vs Wilbur Cooper | Eighth | 22 out |
| Thursday, July 5 |
| » Lost to Cardinals (40-31), 9-6 | Forbes Field (10-25) | 21-47 | Lost 7 |
| » Starters: Oscar Horstmann vs Bob Steele | Eighth | 22 out |
| Friday, July 6 |
| » Defeated Phillies (38-29), 8-5 | Baker Bowl (2-3) | 22-47 | |
| » Starters: Al Mamaux vs Joe Oeschger | Eighth | 22 out |
| Saturday, July 7 |
| » Defeated Phillies (38-30), 4-1 | Baker Bowl (3-3) | 23-47 | Won 2 |
| » Starters: Frank Miller vs Pete Alexander | Eighth | 22½ out |
| Thursday, July 12 |
| » Defeated Dodgers (32-38), 2-1 | Ebbets Field (1-3) | 24-47 | Won 3 |
| » Starters: Wilbur Cooper vs Jeff Pfeffer | Eighth | 21½ out |
| Friday, July 13 |
| » Lost to Dodgers (33-38), 4-0 | Ebbets Field (1-4) | 24-48 | |
| » Starters: Elmer Jacobs vs Larry Cheney | Eighth | 23 out |
| » Lost to Dodgers (34-38), 2-1 | Ebbets Field (1-5) | 24-49 | Lost 2 |
| » Starters: Bob Steele vs Sherry Smith | Eighth | 23 out |
| Saturday, July 14 |
| » Lost to Dodgers (35-38), 5-3 | Ebbets Field (1-6) | 24-50 | Lost 3 |
| » Starters: Hal Carlson vs Leon Cadore | Eighth | 24 out |
| » Lost to Dodgers (36-38), 1-0 | Ebbets Field (1-7) | 24-51 | Lost 4 |
| » Starters: Frank Miller vs Rube Marquard | Eighth | 24 out |
| Monday, July 16 |
| » Lost to Braves (31-43), 8-7 | Braves Field (1-2) | 24-52 | Lost 5 |
| » Starters: Wilbur Cooper vs Frank Allen | Eighth | 25½ out |
| » Lost to Braves (32-43), 7-2 | Braves Field (1-3) | 24-53 | Lost 6 |
| » Starters: Elmer Jacobs vs Jesse Barnes | Eighth | 25½ out |
| Tuesday, July 17 |
| » Lost to Braves (33-43), 10-6 | Braves Field (1-4) | 24-54 | Lost 7 |
| » Starters: Al Mamaux vs Art Nehf | Eighth | 26½ out |
| Wednesday, July 18 |
| » Defeated Braves (33-44), 8-6 | Braves Field (2-4) | 25-54 | |
| » Starters: Frank Miller vs Lefty Tyler | Eighth | 26 out |
| » Defeated Braves (33-45), 3-2 | Braves Field (3-4) | 26-54 | Won 2 |
| » Starters: Bob Steele vs Dick Rudolph | Eighth | 26 out |
| Thursday, July 19 |
| » Defeated Braves (33-46), 6-1 | Braves Field (4-4) | 27-54 | Won 3 |
| » Starters: Wilbur Cooper vs Jesse Barnes | Eighth | 25½ out |
| Friday, July 20 |
| » Lost to Giants (51-26), 4-0 | Polo Grounds V (2-3) | 27-55 | |
| » Starters: Hal Carlson vs Rube Benton | Eighth | 26½ out |
| Saturday, July 21 |
| » Lost to Giants (52-26), 4-3 | Polo Grounds V (2-4) | 27-56 | Lost 2 |
| » Starters: Burleigh Grimes vs Slim Sallee | Eighth | 27½ out |
| Monday, July 23 |
| » Defeated Giants (52-27), 1-0 | Polo Grounds V (3-4) | 28-56 | |
| » Starters: Wilbur Cooper vs Ferdie Schupp | Eighth | 26½ out |
| » Major-league debuts: Tony Boeckel (Pirates) |
| Tuesday, July 24 |
| » Lost to Giants (53-27), 6-2 | Polo Grounds V (3-5) | 28-57 | |
| » Starters: Frank Miller vs Pol Perritt | Eighth | 27½ out |
| Wednesday, July 25 |
| » Lost to Dodgers (39-44), 4-3 | Forbes Field (10-26) | 28-58 | Lost 2 |
| » Starters: Rube Marquard vs Burleigh Grimes | Eighth | 28 out |
| Thursday, July 26 |
| » Defeated Dodgers (39-45), 4-1 | Forbes Field (11-26) | 29-58 | |
| » Starters: Jeff Pfeffer vs Hal Carlson | Eighth | 27½ out |
| » Lost to Dodgers (40-45), 5-1 | Forbes Field (11-27) | 29-59 | |
| » Starters: Leon Cadore vs Elmer Jacobs | Eighth | 27½ out |
| Future Pirate Jimmy Bloodworth is born in Tallahassee, FL. |
| Friday, July 27 |
| » Defeated Dodgers (40-46), 5-1 | Forbes Field (12-27) | 30-59 | |
| » Starters: Jack Coombs vs Wilbur Cooper | Eighth | 27½ out |
| Saturday, July 28 |
| » Lost to Dodgers (41-46), 6-2 | Forbes Field (12-28) | 30-60 | |
| » Starters: Larry Cheney vs Bob Steele | Eighth | 28 out |
| » Lost to Dodgers (42-46), 4-2 | Forbes Field (12-29) | 30-61 | Lost 2 |
| » Starters: Sherry Smith vs Frank Miller | Eighth | 28 out |
| Monday, July 30 |
| » Defeated Giants (55-30), 4-3 | Forbes Field (13-29) | 31-61 | |
| » Starters: Jeff Tesreau vs Hal Carlson | Eighth | 27½ out |
| Tuesday, July 31 |
| » Lost to Giants (56-30), 11-7 | Forbes Field (13-30) | 31-62 | |
| » Starters: Slim Sallee vs Wilbur Cooper | Eighth | 29½ out |
| » Lost to Giants (57-30), 9-3 | Forbes Field (13-31) | 31-63 | Lost 2 |
| » Starters: Ferdie Schupp vs Burleigh Grimes | Eighth | 29½ out |
| Wednesday, August 1 |
| » Lost to Giants (58-30), 3-1 | Forbes Field (13-32) | 31-64 | Lost 3 |
| » Starters: Pol Perritt vs Bob Steele | Eighth | 30½ out |
| Thursday, August 2 |
| » Lost to Giants (59-30), 7-3 | Forbes Field (13-33) | 31-65 | Lost 4 |
| » Starters: Rube Benton vs Frank Miller | Eighth | 31½ out |
| Friday, August 3 |
| » Lost to Braves (40-53), 5-4 | Forbes Field (13-34) | 31-66 | Lost 5 |
| » Starters: Art Nehf vs Wilbur Cooper | Eighth | 32½ out |
| Saturday, August 4 |
| » Lost to Braves (41-53), 6-3 | Forbes Field (13-35) | 31-67 | Lost 6 |
| » Starters: Lefty Tyler vs Elmer Jacobs | Eighth | 32½ out |
| Thursday, August 9 |
| » Defeated Phillies (50-43), 5-1 | Forbes Field (14-35) | 32-67 | |
| » Starters: Pete Alexander vs Elmer Jacobs | Eighth | 34 out |
| Friday, August 10 |
| » Defeated Phillies (50-44), 1-0 | Forbes Field (15-35) | 33-67 | Won 2 |
| » Starters: Eppa Rixey vs Wilbur Cooper | Eighth | 34 out |
| Saturday, August 11 |
| » Lost to Phillies (51-44), 4-3 | Forbes Field (15-36) | 33-68 | |
| » Starters: Pete Alexander vs Frank Miller | Eighth | 34½ out |
| » Lost to Phillies (52-44), 3-2 | Forbes Field (15-37) | 33-69 | Lost 2 |
| » Starters: Joe Oeschger vs Bill Evans | Eighth | 34½ out |
| Sunday, August 12 |
| » Lost to Cubs (55-53), 3-2 | Wrigley Field (1-7) | 33-70 | Lost 3 |
| » Starters: Hal Carlson vs Hippo Vaughn | Eighth | 35 out |
| Monday, August 13 |
| » Lost to Cubs (56-53), 7-3 | Wrigley Field (1-8) | 33-71 | Lost 4 |
| » Starters: Bob Steele vs Claude Hendrix | Eighth | 35½ out |
| Future Pirate Sid Gordon is born in Brooklyn, NY. |
| Tuesday, August 14 |
| » Defeated Cubs (56-54), 2-0 | Wrigley Field (2-8) | 34-71 | |
| » Starters: Wilbur Cooper vs Phil Douglas | Eighth | 35 out |
| Wednesday, August 15 |
| » Defeated Reds (59-56), 3-2 | Forbes Field (16-37) | 35-71 | Won 2 |
| » Starters: Pete Schneider vs Frank Miller | Eighth | 34½ out |
| Thursday, August 16 |
| » Lost to Phillies (54-46), 5-3 | Baker Bowl (3-4) | 35-72 | |
| » Starters: Elmer Jacobs vs Joe Oeschger | Eighth | 36 out |
| » Lost to Phillies (55-46), 3-0 | Baker Bowl (3-5) | 35-73 | Lost 2 |
| » Starters: Bill Evans vs Erskine Mayer | Eighth | 36 out |
| Friday, August 17 |
| » Lost to Phillies (56-46), 3-0 | Baker Bowl (3-6) | 35-74 | Lost 3 |
| » Starters: Elmer Jacobs vs Chief Bender | Eighth | 36½ out |
| » Lost to Phillies (57-46), 7-3 | Baker Bowl (3-7) | 35-75 | Lost 4 |
| » Starters: Hal Carlson vs Eppa Rixey | Eighth | 36½ out |
| Saturday, August 18 |
| » Lost to Phillies (58-46), 3-2 | Baker Bowl (3-8) | 35-76 | Lost 5 |
| » Starters: Wilbur Cooper vs Pete Alexander | Eighth | 37 out |
| Monday, August 20 |
| » Defeated Dodgers (53-58), 1-0 | Ebbets Field (2-7) | 36-76 | |
| » Starters: Frank Miller vs Rube Marquard | Eighth | 36 out |
| Tuesday, August 21 |
| » Tied Dodgers, 3-3 | Ebbets Field (2-7) | 36-76 | |
| » Starters: Bob Steele vs Jeff Pfeffer | Eighth | 35½ out |
| Wednesday, August 22 |
| » Lost to Dodgers (54-58), 6-5 | Ebbets Field (2-8) | 36-77 | |
| » Starters: Wilbur Cooper vs Leon Cadore | Eighth | 36½ out |
| Thursday, August 23 |
| » Lost to Braves (48-60), 2-1 | Braves Field (4-5) | 36-78 | Lost 2 |
| » Starters: Burleigh Grimes vs Lefty Tyler | Eighth | 37 out |
| Friday, August 24 |
| » Defeated Braves (48-61), 1-0 | Braves Field (5-5) | 37-78 | |
| » Starters: Frank Miller vs Jesse Barnes | Eighth | 36½ out |
| Saturday, August 25 |
| » Lost to Braves (49-61), 2-0 | Braves Field (5-6) | 37-79 | |
| » Starters: Bob Steele vs Art Nehf | Eighth | 38 out |
| Monday, August 27 |
| » Defeated Giants (74-41), 1-0 | Polo Grounds V (4-5) | 38-79 | |
| » Starters: Wilbur Cooper vs Rube Benton | Eighth | 37 out |
| Tuesday, August 28 |
| » Lost to Giants (75-41), 7-3 | Polo Grounds V (4-6) | 38-80 | |
| » Starters: Burleigh Grimes vs Pol Perritt | Eighth | 38 out |
| Wednesday, August 29 |
| » Lost to Giants (76-41), 6-5 | Polo Grounds V (4-7) | 38-81 | Lost 2 |
| » Starters: Frank Miller vs Al Demaree | Eighth | 39 out |
| Friday, August 31 |
| » Defeated Cardinals (64-59), 2-0 | Forbes Field (17-37) | 39-81 | |
| » Starters: Bill Doak vs Elmer Jacobs | Eighth | 38½ out |
| » Lost to Cardinals (65-59), 1-0 | Forbes Field (17-38) | 39-82 | |
| » Starters: Red Ames vs Bob Steele | Eighth | 38½ out |
| Saturday, September 1 |
| » Lost to Cardinals (66-59), 1-0 | Forbes Field (17-39) | 39-83 | Lost 2 |
| » Starters: Oscar Horstmann vs Wilbur Cooper | Eighth | 40 out |
| » Lost to Cardinals (67-59), 1-0 | Forbes Field (17-40) | 39-84 | Lost 3 |
| » Starters: Milt Watson vs Hal Carlson | Eighth | 40 out |
| Sunday, September 2 |
| » Defeated Reds (68-63), 8-7 | Crosley Field (3-5) | 40-84 | |
| » Starters: Burleigh Grimes vs Mike Regan | Eighth | 39½ out |
| Monday, September 3 |
| » Defeated Reds (68-64), 8-0 | Forbes Field (18-40) | 41-84 | Won 2 |
| » Starters: Joe Engel vs Frank Miller | Eighth | 38½ out |
| » Defeated Reds (68-65), 5-3 | Forbes Field (19-40) | 42-84 | Won 3 |
| » Starters: Pete Schneider vs Bob Steele | Eighth | 38½ out |
| Tuesday, September 4 |
| » Defeated Reds (68-66), 5-4 | Forbes Field (20-40) | 43-84 | Won 4 |
| » Starters: Fred Toney vs Elmer Jacobs | Eighth | 37½ out |
| Thursday, September 6 |
| » Major-league debuts: Bill Marriott (Cubs) |
| Friday, September 7 |
| » Lost to Cubs (66-68), 2-1 | Forbes Field (20-41) | 43-85 | |
| » Starters: Paul Carter vs Bob Steele | Eighth | 39 out |
| Saturday, September 8 |
| » Lost to Cubs (67-68), 6-2 | Forbes Field (20-42) | 43-86 | Lost 2 |
| » Starters: Claude Hendrix vs Frank Miller | Eighth | 39½ out |
| Sunday, September 9 |
| » Lost to Cubs (68-68), 1-0 | Wrigley Field (2-9) | 43-87 | Lost 3 |
| » Starters: Wilbur Cooper vs Phil Douglas | Seventh | 40 out |
| Monday, September 10 |
| » Lost to Cardinals (74-62), 2-1 | Robison Field (4-3) | 43-88 | Lost 4 |
| » Starters: Elmer Jacobs vs Marv Goodwin | Seventh | 39½ out |
| Tuesday, September 11 |
| » Defeated Cardinals (74-63), 3-0 | Robison Field (5-3) | 44-88 | |
| » Starters: Bob Steele vs Bill Doak | Eighth | 40½ out |
| » Lost to Cardinals (75-63), 5-2 | Robison Field (5-4) | 44-89 | |
| » Starters: Hal Carlson vs Red Ames | Eighth | 40½ out |
| Wednesday, September 12 |
| » Defeated Cardinals (75-64), 2-1 | Robison Field (6-4) | 45-89 | |
| » Starters: Frank Miller vs Milt Watson | Eighth | 41 out |
| Thursday, September 13 |
| » Defeated Cardinals (75-65), 2-1 | Robison Field (7-4) | 46-89 | Won 2 |
| » Starters: Wilbur Cooper vs Lee Meadows | Eighth | 40½ out |
| Saturday, September 15 |
| » Lost to Reds (70-70), 7-6 | Crosley Field (3-6) | 46-90 | |
| » Starters: Elmer Jacobs vs Hod Eller | Eighth | 42 out |
| Sunday, September 16 |
| » Lost to Reds (71-70), 4-2 | Crosley Field (3-7) | 46-91 | Lost 2 |
| » Starters: Bob Steele vs Pete Schneider | Eighth | 43 out |
| » Lost to Reds (72-70), 3-2 | Crosley Field (3-8) | 46-92 | Lost 3 |
| » Starters: Hal Carlson vs Mike Regan | Eighth | 43 out |
| Monday, September 17 |
| » Lost to Braves (60-75), 4-1 | Forbes Field (20-43) | 46-93 | Lost 4 |
| » Starters: Tom Hughes vs Frank Miller | Eighth | 44 out |
| Tuesday, September 18 |
| » Lost to Braves (61-75), 5-3 | Forbes Field (20-44) | 46-94 | Lost 5 |
| » Starters: Dick Rudolph vs Wilbur Cooper | Eighth | 45½ out |
| » Lost to Braves (62-75), 1-0 | Forbes Field (20-45) | 46-95 | Lost 6 |
| » Starters: Art Nehf vs Elmer Ponder | Eighth | 45½ out |
| » Major-league debuts: Elmer Ponder (Pirates) |
| Wednesday, September 19 |
| » Defeated Braves (62-76), 2-1 | Forbes Field (21-45) | 47-95 | |
| » Starters: Jesse Barnes vs Elmer Jacobs | Eighth | 45 out |
| » Lost to Braves (63-76), 6-4 | Forbes Field (21-46) | 47-96 | |
| » Starters: Frank Allen vs Elmer Jacobs | Eighth | 45 out |
| Thursday, September 20 |
| » Tied Giants, 9-9 | Forbes Field (21-46) | 47-96 | |
| » Starters: Pol Perritt vs Bob Steele | Eighth | 45 out |
| Friday, September 21 |
| » Lost to Giants (92-50), 3-1 | Forbes Field (21-47) | 47-97 | Lost 2 |
| » Starters: Rube Benton vs Bob Steele | Eighth | 46 out |
| Saturday, September 22 |
| » Lost to Giants (93-50), 2-1 | Forbes Field (21-48) | 47-98 | Lost 3 |
| » Starters: Pol Perritt vs Wilbur Cooper | Eighth | 46 out |
| » Defeated Giants (93-51), 1-0 | Forbes Field (22-48) | 48-98 | |
| » Starters: Al Demaree vs Elmer Ponder | Eighth | 46 out |
| Monday, September 24 |
| » Lost to Phillies (83-60), 2-0 | Forbes Field (22-49) | 48-99 | |
| » Starters: Chief Bender vs Elmer Jacobs | Eighth | 47 out |
| Tuesday, September 25 |
| » Defeated Phillies (83-61), 3-0 | Forbes Field (23-49) | 49-99 | |
| » Starters: Joe Oeschger vs Frank Miller | Eighth | 46 out |
| Wednesday, September 26 |
| » Lost to Phillies (84-61), 5-0 | Forbes Field (23-50) | 49-100 | |
| » Starters: Eppa Rixey vs Hal Carlson | Eighth | 46 out |
| Thursday, September 27 |
| » Defeated Dodgers (65-78), 10-2 | Forbes Field (24-50) | 50-100 | |
| » Starters: Jeff Pfeffer vs Wilbur Cooper | Eighth | 45½ out |
| Friday, September 28 |
| » Lost to Dodgers (66-78), 3-1 | Forbes Field (24-51) | 50-101 | |
| » Starters: Sherry Smith vs Bob Steele | Eighth | 46 out |
| Saturday, September 29 |
| » Lost to Dodgers (67-78), 3-2 | Forbes Field (24-52) | 50-102 | Lost 2 |
| » Starters: Leon Cadore vs Elmer Jacobs | Seventh | 47½ out |
| » Lost to Dodgers (68-78), 7-3 | Forbes Field (24-53) | 50-103 | Lost 3 |
| » Starters: Rube Marquard vs Frank Miller | Seventh | 47½ out |
| Monday, October 1 |
| » Defeated Braves (69-79), 2-0 | Forbes Field (25-53) | 51-103 | |
| » Starters: Jack Scott vs Wilbur Cooper | Eighth | 46 out |
| Monday, October 8 |
| Future Pirate Danny Murtaugh is born in Chester, PA. |
| Sunday, October 21 |
| Future Pirate Frank Papish is born in Pueblo, CO. |
| Sunday, October 28 |
| Future Pirate Joe Page is born in Cherry Valley, PA. |
| Wednesday, December 12 |
| Future Pirate Clyde Kluttz is born in Rockwell, NC. |
| Wednesday, December 19 |
| Future Pirate Ray Poat is born in Chicago, IL. |
Game information provided by Retrosheet (www.retrosheet.org) |
