| Monday, January 5 |
| Future Pirate Jack Salveson is born in Fullerton, CA. |
| Tuesday, April 14 |
| » Lost to Cardinals (1-0), 2-1 | Robison Field (0-1) | 0-1 | |
| » Starters: Babe Adams vs Dan Griner | Second | 1 out |
| » Major-league debuts: Walt Cruise (Cardinals) Joe Kelly (Pirates) |
| Wednesday, April 15 |
| » Defeated Cardinals (1-1), 5-1 | Robison Field (1-1) | 1-1 | |
| » Starters: Wilbur Cooper vs Slim Sallee | Second | ½ out |
| Thursday, April 16 |
| » Defeated Cardinals (1-2), 4-1 | Robison Field (2-1) | 2-1 | Won 2 |
| » Starters: George McQuillan vs Casey Hageman | Second | 1 out |
| Friday, April 17 |
| » Defeated Cardinals (1-3), 2-0 | Robison Field (3-1) | 3-1 | Won 3 |
| » Starters: Erv Kantlehner vs Pol Perritt | Second | 1 out |
| » Major-league debuts: Erv Kantlehner (Pirates) |
| Saturday, April 18 |
| » Defeated Reds (1-2), 8-5 | Crosley Field (1-0) | 4-1 | Won 4 |
| » Starters: Babe Adams vs Chief Johnson | Second | 1 out |
| Sunday, April 19 |
| » Defeated Reds (1-3), 9-3 | Crosley Field (2-0) | 5-1 | Won 5 |
| » Starters: Wilbur Cooper vs Rube Benton | Second | 1½ out |
| » Major-league debuts: Karl Adams (Reds) |
| Tuesday, April 21 |
| » Defeated Reds (1-4), 5-2 | Crosley Field (3-0) | 6-1 | Won 6 |
| » Starters: George McQuillan vs Earl Yingling | First | -- |
| Thursday, April 23 |
| » Defeated Cardinals (3-5), 5-1 | Forbes Field (1-0) | 7-1 | Won 7 |
| » Starters: Casey Hageman vs Babe Adams | First | -- |
| Friday, April 24 |
| » Lost to Cardinals (4-5), 8-1 | Forbes Field (1-1) | 7-2 | |
| » Starters: Pol Perritt vs Bob Harmon | First | -- |
| Sunday, April 26 |
| » Defeated Cubs (4-6), 6-4 | West Side Grounds (1-0) | 8-2 | |
| » Starters: Wilbur Cooper vs Jimmy Lavender | First | -- |
| Tuesday, April 28 |
| » Defeated Cubs (4-7), 5-2 | West Side Grounds (2-0) | 9-2 | Won 2 |
| » Starters: George McQuillan vs Bert Humphries | First | -- |
| Wednesday, April 29 |
| » Defeated Cubs (4-8), 7-0 | West Side Grounds (3-0) | 10-2 | Won 3 |
| » Starters: Babe Adams vs Jimmy Lavender | First | -- |
| Friday, May 1 |
| » Defeated Reds (7-7), 4-2 | Forbes Field (2-1) | 11-2 | Won 4 |
| » Starters: Dave Davenport vs Joe Conzelman | First | -- |
| Saturday, May 2 |
| » Defeated Reds (7-8), 7-5 | Forbes Field (3-1) | 12-2 | Won 5 |
| » Starters: Phil Douglas vs Wilbur Cooper | First | -- |
| » Major-league debuts: King Lear (Reds) |
| Sunday, May 3 |
| » Defeated Reds (7-9), 3-1 | Crosley Field (4-0) | 13-2 | Won 6 |
| » Starters: George McQuillan vs Red Ames | First | -- |
| Wednesday, May 6 |
| » Defeated Cubs (6-12), 1-0 | Forbes Field (4-1) | 14-2 | Won 7 |
| » Starters: Larry Cheney vs Babe Adams | First | -- |
| Thursday, May 7 |
| » Defeated Cubs (6-13), 7-1 | Forbes Field (5-1) | 15-2 | Won 8 |
| » Starters: Bert Humphries vs Wilbur Cooper | First | -- |
| » Major-league debuts: Joe Leonard (Pirates) |
| Saturday, May 9 |
| » Lost to Cubs (7-13), 10-2 | Forbes Field (5-2) | 15-3 | |
| » Starters: Jimmy Lavender vs Joe Conzelman | First | -- |
| Sunday, May 10 |
| » Lost to Cubs (8-13), 4-1 | West Side Grounds (3-1) | 15-4 | Lost 2 |
| » Starters: George McQuillan vs Larry Cheney | First | -- |
| Future Pirate Russ Bauers is born in Townsend, WI. |
| Tuesday, May 12 |
| » Tied Braves, 1-1 | Forbes Field (5-2) | 15-4 | |
| » Starters: Dick Rudolph vs Wilbur Cooper | First | -- |
| Thursday, May 14 |
| » Lost to Giants (10-6), 4-3 | Forbes Field (5-3) | 15-5 | Lost 3 |
| » Starters: Al Demaree vs Babe Adams | First | -- |
| Friday, May 15 |
| » Lost to Giants (11-6), 5-3 | Forbes Field (5-4) | 15-6 | Lost 4 |
| » Starters: Christy Mathewson vs George McQuillan | First | -- |
| Future Pirate Jimmy Wasdell is born in Cleveland, OH. |
| Saturday, May 16 |
| » Lost to Giants (12-6), 2-0 | Forbes Field (5-5) | 15-7 | Lost 5 |
| » Starters: Jeff Tesreau vs Wilbur Cooper | First | -- |
| Monday, May 18 |
| » Lost to Braves (4-16), 4-1 | Forbes Field (5-6) | 15-8 | Lost 6 |
| » Starters: Bill James vs Babe Adams | First | -- |
| Tuesday, May 19 |
| » Defeated Braves (4-17), 7-5 | Forbes Field (6-6) | 16-8 | |
| » Starters: Dick Crutcher vs George McQuillan | First | -- |
| Wednesday, May 20 |
| » Defeated Braves (4-18), 4-1 | Forbes Field (7-6) | 17-8 | Won 2 |
| » Starters: Dolf Luque vs Wilbur Cooper | First | -- |
| » Major-league debuts: Dolf Luque (Braves) |
| Thursday, May 21 |
| » Defeated Phillies (11-13), 6-2 | Forbes Field (8-6) | 18-8 | Won 3 |
| » Starters: Erskine Mayer vs Bob Harmon | First | -- |
| Friday, May 22 |
| » Defeated Phillies (11-14), 8-2 | Forbes Field (9-6) | 19-8 | Won 4 |
| » Starters: Rube Marshall vs Babe Adams | First | -- |
| » Major-league debuts: Ben Tincup (Phillies) |
| Saturday, May 23 |
| » Defeated Phillies (11-15), 7-2 | Forbes Field (10-6) | 20-8 | Won 5 |
| » Starters: Joe Oeschger vs George McQuillan | First | -- |
| Monday, May 25 |
| » Defeated Dodgers (13-15), 5-4 | Forbes Field (11-6) | 21-8 | Won 6 |
| » Starters: Nap Rucker vs Wilbur Cooper | First | -- |
| Tuesday, May 26 |
| » Lost to Dodgers (14-15), 3-2 | Forbes Field (11-7) | 21-9 | |
| » Starters: Ed Reulbach vs Babe Adams | First | -- |
| Thursday, May 28 |
| » Lost to Phillies (13-17), 2-0 | Forbes Field (11-8) | 21-10 | Lost 2 |
| » Starters: Erskine Mayer vs Bob Harmon | First | -- |
| Friday, May 29 |
| » Lost to Reds (22-15), 3-2 | Forbes Field (11-9) | 21-11 | Lost 3 |
| » Starters: Phil Douglas vs George McQuillan | First | -- |
| Saturday, May 30 |
| » Lost to Reds (23-15), 3-2 | Forbes Field (11-10) | 21-12 | Lost 4 |
| » Starters: Earl Yingling vs Wilbur Cooper | Second | 1 out |
| » Lost to Reds (24-15), 3-0 | Forbes Field (11-11) | 21-13 | Lost 5 |
| » Starters: Dave Davenport vs Babe Adams | Second | 1 out |
| Sunday, May 31 |
| » Lost to Reds (25-15), 2-1 | Crosley Field (4-1) | 21-14 | Lost 6 |
| » Starters: Bob Harmon vs Red Ames | Third | 1½ out |
| » Tied Reds, 5-5 | Crosley Field (4-1) | 21-14 | |
| » Starters: George McQuillan vs Rube Benton | Third | 1½ out |
| Monday, June 1 |
| » Lost to Cubs (19-22), 7-3 | West Side Grounds (3-2) | 21-15 | Lost 7 |
| » Starters: Marty O'Toole vs Larry Cheney | Third | 2½ out |
| Tuesday, June 2 |
| » Lost to Cubs (20-22), 7-3 | West Side Grounds (3-3) | 21-16 | Lost 8 |
| » Starters: Babe Adams vs George Pearce | Third | 3 out |
| Wednesday, June 3 |
| » Lost to Cubs (21-22), 6-5 | Forbes Field (11-12) | 21-17 | Lost 9 |
| » Starters: Bert Humphries vs Bob Harmon | Third | 3 out |
| Friday, June 5 |
| » Lost to Phillies (18-20), 13-3 | Baker Bowl (0-1) | 21-18 | Lost 10 |
| » Starters: George McQuillan vs Erskine Mayer | Third | 3 out |
| Saturday, June 6 |
| » Defeated Phillies (18-21), 5-2 | Baker Bowl (1-1) | 22-18 | |
| » Starters: Babe Adams vs Rube Marshall | Third | 3 out |
| Monday, June 8 |
| » Defeated Phillies (18-22), 7-5 | Baker Bowl (2-1) | 23-18 | Won 2 |
| » Starters: Bob Harmon vs Pete Alexander | Third | 3 out |
| Tuesday, June 9 |
| » Lost to Phillies (19-22), 3-1 | Baker Bowl (2-2) | 23-19 | |
| » Starters: Joe Conzelman vs Erskine Mayer | Third | 3 out |
| Wednesday, June 10 |
| » Lost to Braves (14-28), 11-2 | South End Grounds III (0-1) | 23-20 | Lost 2 |
| » Starters: Wilbur Cooper vs Dick Rudolph | Third | 4 out |
| Thursday, June 11 |
| » Lost to Braves (15-28), 3-2 | South End Grounds III (0-2) | 23-21 | Lost 3 |
| » Starters: Babe Adams vs Hub Perdue | Third | 4 out |
| Friday, June 12 |
| » Lost to Braves (16-28), 5-3 | South End Grounds III (0-3) | 23-22 | Lost 4 |
| » Starters: George McQuillan vs Hub Perdue | Third | 4 out |
| Saturday, June 13 |
| » Lost to Braves (17-28), 4-3 | South End Grounds III (0-4) | 23-23 | Lost 5 |
| » Starters: Joe Conzelman vs Lefty Tyler | Fourth | 5 out |
| Monday, June 15 |
| » Defeated Giants (27-18), 3-2 | Polo Grounds V (1-0) | 24-23 | |
| » Starters: Babe Adams vs Rube Marquard | Third | 4 out |
| Tuesday, June 16 |
| » Lost to Giants (28-18), 3-0 | Polo Grounds V (1-1) | 24-24 | |
| » Starters: Bob Harmon vs Jeff Tesreau | Fourth | 5 out |
| Wednesday, June 17 |
| » Lost to Giants (29-18), 5-0 | Polo Grounds V (1-2) | 24-25 | Lost 2 |
| » Starters: George McQuillan vs Christy Mathewson | Fourth | 6 out |
| Thursday, June 18 |
| » Defeated Giants (29-19), 4-3 | Polo Grounds V (2-2) | 25-25 | |
| » Starters: Babe Adams vs Al Demaree | Fifth | 5 out |
| Saturday, June 20 |
| » Defeated Dodgers (21-28), 4-3 | Ebbets Field (1-0) | 26-25 | Won 2 |
| » Starters: Wilbur Cooper vs Ed Reulbach | Third | 5½ out |
| Monday, June 22 |
| » Lost to Dodgers (22-28), 5-1 | Ebbets Field (1-1) | 26-26 | |
| » Starters: Bob Harmon vs Jeff Pfeffer | Fourth | 6½ out |
| Tuesday, June 23 |
| » Lost to Dodgers (23-28), 2-1 | Ebbets Field (1-2) | 26-27 | Lost 2 |
| » Starters: Wilbur Cooper vs Nap Rucker | Fourth | 7 out |
| Wednesday, June 24 |
| » Lost to Cardinals (32-29), 3-0 | Forbes Field (11-13) | 26-28 | Lost 3 |
| » Starters: Bill Doak vs Babe Adams | Sixth | 7½ out |
| Thursday, June 25 |
| » Defeated Cardinals (32-30), 4-1 | Forbes Field (12-13) | 27-28 | |
| » Starters: Pol Perritt vs Joe Conzelman | Sixth | 6½ out |
| Friday, June 26 |
| » Defeated Cardinals (32-31), 3-2 | Forbes Field (13-13) | 28-28 | Won 2 |
| » Starters: Slim Sallee vs Wilbur Cooper | Fifth | 7 out |
| Saturday, June 27 |
| » Defeated Cardinals (32-32), 4-2 | Forbes Field (14-13) | 29-28 | Won 3 |
| » Starters: Dan Griner vs Bob Harmon | Third | 6 out |
| Sunday, June 28 |
| » Lost to Reds (32-30), 7-6 | Crosley Field (4-2) | 29-29 | |
| » Starters: Babe Adams vs Elmer Koestner | Fifth | 7 out |
| » Lost to Reds (33-30), 1-0 | Crosley Field (4-3) | 29-30 | Lost 2 |
| » Starters: Marty O'Toole vs Pete Schneider | Fifth | 7 out |
| Monday, June 29 |
| » Defeated Cardinals (33-34), 4-1 | Robison Field (4-1) | 30-30 | |
| » Starters: Wilbur Cooper vs Pol Perritt | Fourth | 6½ out |
| Tuesday, June 30 |
| » Lost to Cardinals (34-34), 1-0 | Robison Field (4-2) | 30-31 | |
| » Starters: Bob Harmon vs Slim Sallee | Fifth | 7½ out |
| Wednesday, July 1 |
| » Lost to Cardinals (35-34), 5-1 | Robison Field (4-3) | 30-32 | Lost 2 |
| » Starters: Joe Conzelman vs Casey Hageman | Sixth | 8 out |
| Friday, July 3 |
| » Defeated Cubs (37-32), 2-1 | Forbes Field (15-13) | 31-32 | |
| » Starters: Jimmy Lavender vs Marty O'Toole | Fifth | 7½ out |
| Saturday, July 4 |
| » Lost to Cubs (38-32), 1-0 | Forbes Field (15-14) | 31-33 | |
| » Starters: Hippo Vaughn vs Babe Adams | Sixth | 9½ out |
| » Lost to Cubs (39-32), 4-2 | Forbes Field (15-15) | 31-34 | Lost 2 |
| » Starters: Larry Cheney vs Wilbur Cooper | Sixth | 9½ out |
| Sunday, July 5 |
| » Lost to Cubs (40-32), 5-4 | West Side Grounds (3-4) | 31-35 | Lost 3 |
| » Starters: Bob Harmon vs Bert Humphries | Sixth | 10 out |
| Tuesday, July 7 |
| » Defeated Giants (41-26), 5-2 | Forbes Field (16-15) | 32-35 | |
| » Starters: Rube Marquard vs Babe Adams | Fifth | 9 out |
| Wednesday, July 8 |
| » Lost to Phillies (32-35), 10-7 | Forbes Field (16-16) | 32-36 | |
| » Starters: Rube Marshall vs Marty O'Toole | Sixth | 9 out |
| Thursday, July 9 |
| » Lost to Phillies (33-35), 1-0 | Forbes Field (16-17) | 32-37 | Lost 2 |
| » Starters: Ben Tincup vs George McQuillan | Seventh | 9 out |
| Friday, July 10 |
| » Lost to Phillies (34-35), 5-2 | Forbes Field (16-18) | 32-38 | Lost 3 |
| » Starters: Eddie Matteson vs Bob Harmon | Seventh | 9 out |
| Saturday, July 11 |
| » Defeated Phillies (34-36), 3-1 | Forbes Field (17-18) | 33-38 | |
| » Starters: Eppa Rixey vs Al Mamaux | Seventh | 9 out |
| Wednesday, July 15 |
| » Defeated Dodgers (33-38), 4-3 | Forbes Field (18-18) | 34-38 | Won 2 |
| » Starters: Ed Reulbach vs Wilbur Cooper | Sixth | 8½ out |
| Thursday, July 16 |
| » Lost to Dodgers (34-38), 4-3 | Forbes Field (18-19) | 34-39 | |
| » Starters: Nap Rucker vs Marty O'Toole | Seventh | 9½ out |
| » Lost to Dodgers (35-38), 5-2 | Forbes Field (18-20) | 34-40 | Lost 2 |
| » Starters: Jeff Pfeffer vs Erv Kantlehner | Seventh | 9½ out |
| Friday, July 17 |
| » Lost to Giants (45-31), 3-1 | Forbes Field (18-21) | 34-41 | Lost 3 |
| » Starters: Rube Marquard vs Babe Adams | Seventh | 10½ out |
| Saturday, July 18 |
| » Defeated Giants (45-32), 3-0 | Forbes Field (19-21) | 35-41 | |
| » Starters: Al Demaree vs Bob Harmon | Seventh | 10½ out |
| » Lost to Giants (46-32), 6-5 | Forbes Field (19-22) | 35-42 | |
| » Starters: Christy Mathewson vs Al Mamaux | Seventh | 10½ out |
| Monday, July 20 |
| » Lost to Braves (37-43), 1-0 | Forbes Field (19-23) | 35-43 | Lost 2 |
| » Starters: Lefty Tyler vs Wilbur Cooper | Eighth | 11½ out |
| Tuesday, July 21 |
| » Lost to Braves (38-43), 6-0 | Forbes Field (19-24) | 35-44 | Lost 3 |
| » Starters: Dick Rudolph vs Marty O'Toole | Eighth | 12½ out |
| Wednesday, July 22 |
| » Lost to Braves (39-43), 1-0 | Forbes Field (19-25) | 35-45 | Lost 4 |
| » Starters: Bill James vs Bob Harmon | Seventh | 13 out |
| » Defeated Braves (39-44), 8-4 | Forbes Field (20-25) | 36-45 | |
| » Starters: Dick Crutcher vs Babe Adams | Seventh | 13 out |
| Thursday, July 23 |
| » Lost to Braves (40-44), 2-0 | Forbes Field (20-26) | 36-46 | |
| » Starters: Lefty Tyler vs Wilbur Cooper | Seventh | 14 out |
| Friday, July 24 |
| » Defeated Phillies (37-46), 3-2 | Forbes Field (21-26) | 37-46 | |
| » Starters: Erskine Mayer vs George McQuillan | Sixth | 13½ out |
| Saturday, July 25 |
| » Lost to Giants (51-32), 4-2 | Polo Grounds V (2-3) | 37-47 | |
| » Starters: Babe Adams vs Christy Mathewson | Seventh | 14½ out |
| Monday, July 27 |
| » Defeated Giants (51-33), 3-1 | Polo Grounds V (3-3) | 38-47 | |
| » Starters: Bob Harmon vs Rube Marquard | Seventh | 13½ out |
| Wednesday, July 29 |
| » Lost to Giants (52-33), 1-0 | Polo Grounds V (3-4) | 38-48 | |
| » Starters: George McQuillan vs Jeff Tesreau | Seventh | 14½ out |
| Thursday, July 30 |
| » Defeated Dodgers (36-49), 7-2 | Ebbets Field (2-2) | 39-48 | |
| » Starters: Wilbur Cooper vs Frank Allen | Seventh | 13½ out |
| Friday, July 31 |
| » Lost to Dodgers (37-49), 9-3 | Ebbets Field (2-3) | 39-49 | |
| » Starters: Bob Harmon vs Pat Ragan | Seventh | 13½ out |
| » Major-league debuts: Zip Collins (Pirates) |
| Future Pirate Elmer Riddle is born in Columbus, GA. |
| Saturday, August 1 |
| » Lost to Dodgers (38-49), 7-1 | Ebbets Field (2-4) | 39-50 | Lost 2 |
| » Starters: Babe Adams vs Jeff Pfeffer | Eighth | 14 out |
| » Lost to Dodgers (39-49), 10-1 | Ebbets Field (2-5) | 39-51 | Lost 3 |
| » Starters: Marty O'Toole vs Ed Reulbach | Eighth | 14 out |
| Monday, August 3 |
| » Defeated Dodgers (39-50), 7-3 | Ebbets Field (3-5) | 40-51 | |
| » Starters: Wilbur Cooper vs Pat Ragan | Seventh | 13½ out |
| Tuesday, August 4 |
| » Lost to Braves (47-45), 1-0 | South End Grounds III (0-5) | 40-52 | |
| » Starters: Bob Harmon vs Dick Rudolph | Eighth | 14½ out |
| Wednesday, August 5 |
| » Lost to Braves (48-45), 4-0 | South End Grounds III (0-6) | 40-53 | Lost 2 |
| » Starters: Marty O'Toole vs Bill James | Eighth | 15½ out |
| Thursday, August 6 |
| » Lost to Braves (49-45), 5-4 | South End Grounds III (0-7) | 40-54 | Lost 3 |
| » Starters: Babe Adams vs Lefty Tyler | Eighth | 15½ out |
| Friday, August 7 |
| » Defeated Braves (49-46), 5-1 | South End Grounds III (1-7) | 41-54 | |
| » Starters: Wilbur Cooper vs Ensign Cottrell | Eighth | 15½ out |
| Saturday, August 8 |
| » Defeated Phillies (46-51), 4-3 | Baker Bowl (3-2) | 42-54 | Won 2 |
| » Starters: George McQuillan vs Erskine Mayer | Eighth | 14½ out |
| Monday, August 10 |
| » Defeated Phillies (46-52), 4-2 | Baker Bowl (4-2) | 43-54 | Won 3 |
| » Starters: Bob Harmon vs Ben Tincup | Eighth | 14½ out |
| Tuesday, August 11 |
| » Lost to Phillies (47-52), 5-4 | Baker Bowl (4-3) | 43-55 | |
| » Starters: Marty O'Toole vs Pete Alexander | Eighth | 14½ out |
| Thursday, August 13 |
| » Defeated Cardinals (55-51), 2-1 | Forbes Field (22-26) | 44-55 | |
| » Starters: Hub Perdue vs Wilbur Cooper | Eighth | 13½ out |
| » Defeated Cardinals (55-52), 5-2 | Forbes Field (23-26) | 45-55 | Won 2 |
| » Starters: Pol Perritt vs Babe Adams | Eighth | 13½ out |
| Friday, August 14 |
| » Defeated Reds (47-55), 8-7 | Forbes Field (24-26) | 46-55 | Won 3 |
| » Starters: Phil Douglas vs George McQuillan | Eighth | 12½ out |
| Saturday, August 15 |
| » Defeated Reds (47-56), 2-0 | Forbes Field (25-26) | 47-55 | Won 4 |
| » Starters: Red Ames vs Joe Conzelman | Seventh | 11½ out |
| Monday, August 17 |
| » Lost to Giants (59-43), 7-3 | Forbes Field (25-27) | 47-56 | |
| » Starters: Jeff Tesreau vs Bob Harmon | Seventh | 12½ out |
| Tuesday, August 18 |
| » Defeated Giants (59-44), 3-1 | Forbes Field (26-27) | 48-56 | |
| » Starters: Rube Marquard vs Babe Adams | Fifth | 11½ out |
| Wednesday, August 19 |
| » Defeated Giants (59-45), 5-1 | Forbes Field (27-27) | 49-56 | Won 2 |
| » Starters: Al Demaree vs Wilbur Cooper | Fifth | 10½ out |
| Thursday, August 20 |
| » Lost to Braves (58-47), 6-3 | Forbes Field (27-28) | 49-57 | |
| » Starters: Dick Rudolph vs Joe Conzelman | Fifth | 11 out |
| Saturday, August 22 |
| » Defeated Braves (58-48), 3-2 | Forbes Field (28-28) | 50-57 | |
| » Starters: Bill James vs Bob Harmon | Fifth | 10 out |
| » Lost to Braves (59-48), 4-2 | Forbes Field (28-29) | 50-58 | |
| » Starters: Otto Hess vs Wilbur Cooper | Fifth | 10 out |
| Monday, August 24 |
| » Lost to Phillies (51-58), 3-2 | Forbes Field (28-30) | 50-59 | Lost 2 |
| » Starters: Rube Marshall vs George McQuillan | Seventh | 10 out |
| Tuesday, August 25 |
| » Defeated Phillies (51-59), 2-0 | Forbes Field (29-30) | 51-59 | |
| » Starters: Pete Alexander vs Al Mamaux | Fifth | 9½ out |
| Wednesday, August 26 |
| » Lost to Dodgers (50-61), 2-1 | Forbes Field (29-31) | 51-60 | |
| » Starters: Jeff Pfeffer vs Wilbur Cooper | Seventh | 10½ out |
| » Lost to Dodgers (51-61), 4-2 | Forbes Field (29-32) | 51-61 | Lost 2 |
| » Starters: Pat Ragan vs Babe Adams | Seventh | 10½ out |
| Thursday, August 27 |
| » Lost to Dodgers (52-61), 1-0 | Forbes Field (29-33) | 51-62 | Lost 3 |
| » Starters: Ed Reulbach vs Bob Harmon | Eighth | 11½ out |
| Saturday, August 29 |
| » Defeated Dodgers (52-62), 1-0 | Forbes Field (30-33) | 52-62 | |
| » Starters: Jeff Pfeffer vs Al Mamaux | Eighth | 11½ out |
| » Lost to Dodgers (53-62), 5-4 | Forbes Field (30-34) | 52-63 | |
| » Starters: Pat Ragan vs Wilbur Cooper | Eighth | 11½ out |
| Monday, August 31 |
| » Tied Giants, 1-1 | Forbes Field (30-34) | 52-63 | |
| » Starters: Al Demaree vs Bob Harmon | Eighth | 12 out |
| Wednesday, September 2 |
| » Defeated Cardinals (64-58), 4-1 | Robison Field (5-3) | 53-63 | |
| » Starters: George McQuillan vs Pol Perritt | Seventh | 12 out |
| » Tied Cardinals, 1-1 | Robison Field (5-3) | 53-63 | |
| » Starters: Babe Adams vs Bill Doak | Seventh | 12 out |
| Thursday, September 3 |
| » Defeated Cardinals (64-59), 11-6 | Robison Field (6-3) | 54-63 | Won 2 |
| » Starters: Wilbur Cooper vs Hub Perdue | Fifth | 11 out |
| » Defeated Cardinals (64-60), 10-3 | Robison Field (7-3) | 55-63 | Won 3 |
| » Starters: Erv Kantlehner vs Dan Griner | Fifth | 11 out |
| » Major-league debuts: Bruno Betzel (Cardinals) |
| Friday, September 4 |
| » Defeated Cardinals (64-61), 2-1 | Robison Field (8-3) | 56-63 | Won 4 |
| » Starters: Bob Harmon vs Slim Sallee | Fifth | 11 out |
| Saturday, September 5 |
| » Lost to Cubs (65-59), 3-2 | West Side Grounds (3-5) | 56-64 | |
| » Starters: George McQuillan vs Jimmy Lavender | Fourth | 11½ out |
| Sunday, September 6 |
| » Lost to Cubs (66-59), 8-3 | West Side Grounds (3-6) | 56-65 | Lost 2 |
| » Starters: Babe Adams vs Hippo Vaughn | Fourth | 12 out |
| Monday, September 7 |
| » Lost to Cardinals (67-61), 7-4 | Forbes Field (30-35) | 56-66 | Lost 3 |
| » Starters: Bill Doak vs Al Mamaux | Fifth | 12 out |
| » Defeated Cardinals (67-62), 2-1 | Forbes Field (31-35) | 57-66 | |
| » Starters: Slim Sallee vs Bob Harmon | Fifth | 12 out |
| Wednesday, September 9 |
| » Defeated Cubs (69-60), 5-1 | Forbes Field (32-35) | 58-66 | Won 2 |
| » Starters: Larry Cheney vs George McQuillan | Fifth | 12 out |
| Thursday, September 10 |
| » Defeated Cubs (69-61), 4-2 | Forbes Field (33-35) | 59-66 | Won 3 |
| » Starters: Hippo Vaughn vs Wilbur Cooper | Fifth | 12½ out |
| » Major-league debuts: Ike McAuley (Pirates) |
| Saturday, September 12 |
| » Defeated Cubs (69-62), 5-4 | Forbes Field (34-35) | 60-66 | Won 4 |
| » Starters: Jimmy Lavender vs Babe Adams | Fifth | 11½ out |
| » Defeated Cubs (69-63), 4-0 | Forbes Field (35-35) | 61-66 | Won 5 |
| » Starters: Bert Humphries vs Erv Kantlehner | Fifth | 11½ out |
| Sunday, September 13 |
| » Lost to Cubs (70-63), 2-0 | West Side Grounds (3-7) | 61-67 | |
| » Starters: Bob Harmon vs Larry Cheney | Fifth | 12 out |
| Monday, September 14 |
| » Lost to Cubs (71-63), 7-4 | West Side Grounds (3-8) | 61-68 | Lost 2 |
| » Starters: George McQuillan vs Hippo Vaughn | Fifth | 13 out |
| Tuesday, September 15 |
| » Defeated Reds (56-75), 9-0 | Forbes Field (36-35) | 62-68 | |
| » Starters: Rube Benton vs Babe Adams | Fifth | 13 out |
| Wednesday, September 16 |
| » Lost to Phillies (62-71), 6-2 | Baker Bowl (4-4) | 62-69 | |
| » Starters: Wilbur Cooper vs Eppa Rixey | Fifth | 14 out |
| Thursday, September 17 |
| » Lost to Phillies (63-71), 6-3 | Baker Bowl (4-5) | 62-70 | Lost 2 |
| » Starters: Bob Harmon vs Elmer Jacobs | Sixth | 15½ out |
| » Lost to Phillies (64-71), 2-0 | Baker Bowl (4-6) | 62-71 | Lost 3 |
| » Starters: George McQuillan vs Ben Tincup | Sixth | 15½ out |
| Friday, September 18 |
| » Lost to Phillies (65-71), 6-4 | Baker Bowl (4-7) | 62-72 | Lost 4 |
| » Starters: Babe Adams vs Rube Marshall | Sixth | 16 out |
| Saturday, September 19 |
| » Lost to Braves (78-55), 9-3 | Fenway Park (0-1) | 62-73 | Lost 5 |
| » Starters: Wilbur Cooper vs Iron Davis | Sixth | 17 out |
| Sunday, September 20 |
| » Major-league debuts: Elmer Smith (Indians) |
| Monday, September 21 |
| » Lost to Braves (79-55), 6-5 | Fenway Park (0-2) | 62-74 | Lost 6 |
| » Starters: Bob Harmon vs Dick Rudolph | Seventh | 18 out |
| Tuesday, September 22 |
| » Lost to Braves (80-55), 8-2 | Fenway Park (0-3) | 62-75 | Lost 7 |
| » Starters: George McQuillan vs Lefty Tyler | Seventh | 19 out |
| Wednesday, September 23 |
| » Lost to Dodgers (66-74), 5-1 | Ebbets Field (3-6) | 62-76 | Lost 8 |
| » Starters: Wilbur Cooper vs Jeff Pfeffer | Seventh | 20 out |
| » Lost to Dodgers (67-74), 5-2 | Ebbets Field (3-7) | 62-77 | Lost 9 |
| » Starters: Joe Conzelman vs Nap Rucker | Seventh | 20 out |
| » Major-league debuts: Wally Gerber and Bobby Schang (Pirates) |
| Thursday, September 24 |
| » Lost to Dodgers (68-74), 3-2 | Ebbets Field (3-8) | 62-78 | Lost 10 |
| » Starters: Erv Kantlehner vs Pat Ragan | Seventh | 21 out |
| Friday, September 25 |
| » Lost to Dodgers (69-74), 3-2 | Ebbets Field (3-9) | 62-79 | Lost 11 |
| » Starters: Herb Kelly vs Ed Reulbach | Seventh | 22½ out |
| Saturday, September 26 |
| » Lost to Giants (78-64), 4-2 | Polo Grounds V (3-5) | 62-80 | Lost 12 |
| » Starters: Bob Harmon vs Jeff Tesreau | Seventh | 23½ out |
| » Defeated Giants (78-65), 4-2 | Polo Grounds V (4-5) | 63-80 | |
| » Starters: Babe Adams vs Christy Mathewson | Seventh | 23½ out |
| Monday, September 28 |
| » Lost to Giants (79-65), 5-2 | Polo Grounds V (4-6) | 63-81 | |
| » Starters: George McQuillan vs Al Demaree | Seventh | 25 out |
| » Lost to Giants (80-65), 13-6 | Polo Grounds V (4-7) | 63-82 | Lost 2 |
| » Starters: Wilbur Cooper vs Rube Marquard | Seventh | 25 out |
| Tuesday, September 29 |
| » Defeated Giants (80-66), 5-2 | Polo Grounds V (5-7) | 64-82 | |
| » Starters: Bob Harmon vs Marty O'Toole | Seventh | 25 out |
| Wednesday, September 30 |
| » Lost to Cardinals (78-69), 1-0 | Forbes Field (36-36) | 64-83 | |
| » Starters: Bill Doak vs Wilbur Cooper | Seventh | 26 out |
| Thursday, October 1 |
| » Defeated Reds (58-90), 5-1 | Forbes Field (37-36) | 65-83 | |
| » Starters: Red Ames vs Babe Adams | Seventh | 26 out |
| Friday, October 2 |
| » Defeated Reds (58-91), 2-1 | Forbes Field (38-36) | 66-83 | Won 2 |
| » Starters: Phil Douglas vs George McQuillan | Seventh | 25 out |
| Saturday, October 3 |
| » Defeated Reds (58-92), 1-0 | Forbes Field (39-36) | 67-83 | Won 3 |
| » Starters: King Lear vs Bob Harmon | Seventh | 24½ out |
| Sunday, October 4 |
| » Lost to Reds (59-92), 5-4 | Crosley Field (4-4) | 67-84 | |
| » Starters: Babe Adams vs Paul Fittery | Seventh | 24½ out |
| » Defeated Reds (59-93), 11-4 | Crosley Field (5-4) | 68-84 | |
| » Starters: Al Mamaux vs Rube Benton | Seventh | 24½ out |
| Monday, October 5 |
| » Defeated Reds (59-94), 4-3 | Crosley Field (6-4) | 69-84 | Won 2 |
| » Starters: George McQuillan vs Red Ames | Seventh | 25½ out |
| » Lost to Reds (60-94), 4-1 | Crosley Field (6-5) | 69-85 | |
| » Starters: Herb Kelly vs Pete Schneider | Seventh | 25½ out |
| Tuesday, October 6 |
| » Major-league debuts: Eric Erickson and Walter Holke (Giants) |
| Sunday, November 15 |
| Future Pirate Maurice Van Robays is born in Detroit, MI. |
| Saturday, December 12 |
| Future Pirate Hank Camelli is born in Gloucester, MA. |
Game information provided by Retrosheet (www.retrosheet.org) |
