| Wednesday, January 22 |
| Future Pirate Diomedes Olivo is born in Guayubin, D.R. |
| Friday, January 31 |
| Future Pirate Ken Gables is born in Walnut Grove, MO. |
| Tuesday, February 4 |
| Former Pirate Lefty Davis dies in Collins, NY at the age of 45. |
| Friday, March 7 |
| Future Pirate Junior Walsh is born in Newark, NJ. |
| Tuesday, March 11 |
| Former Pirate Ed Poole dies in Malvern, OH at the age of 45. |
| Saturday, March 15 |
| Future Pirate Whitey Wietelmann is born in Zanesville, OH. |
| Monday, March 17 |
| Future Pirate Pete Reiser is born in St. Louis, MO. |
| Friday, April 11 |
| Future Pirate Hank Schenz is born in New Richmond, OH. |
| Monday, April 21 |
| Future Pirate Stan Rojek is born in North Tonawanda, NY. |
| Wednesday, April 23 |
| » Major-league debuts: Ike Davis (Senators) |
| Thursday, April 24 |
| » Lost to Cubs (1-0), 5-1 | Wrigley Field (0-1) | 0-1 | |
| » Starters: Wilbur Cooper vs Hippo Vaughn | Fifth | 2 out |
| Friday, April 25 |
| » Defeated Cubs (1-1), 6-5 | Wrigley Field (1-1) | 1-1 | |
| » Starters: Erskine Mayer vs Speed Martin | Third | 1½ out |
| Saturday, April 26 |
| » Defeated Cubs (1-2), 6-3 | Wrigley Field (2-1) | 2-1 | Won 2 |
| » Starters: Babe Adams vs Phil Douglas | Third | 1½ out |
| Sunday, April 27 |
| » Lost to Reds (5-0), 4-1 | Crosley Field (0-1) | 2-2 | |
| » Starters: Earl Hamilton vs Dutch Ruether | Fourth | 2½ out |
| Tuesday, April 29 |
| » Lost to Reds (6-0), 8-1 | Crosley Field (0-2) | 2-3 | Lost 2 |
| » Starters: Wilbur Cooper vs Ray Fisher | Fifth | 3½ out |
| Friday, May 2 |
| » Lost to Cubs (4-3), 4-2 | Forbes Field (0-1) | 2-4 | Lost 3 |
| » Starters: Lefty Tyler vs Erskine Mayer | Sixth | 4 out |
| Saturday, May 3 |
| » Lost to Cubs (5-3), 2-1 | Forbes Field (0-2) | 2-5 | Lost 4 |
| » Starters: Hippo Vaughn vs Earl Hamilton | Sixth | 5 out |
| Sunday, May 4 |
| » Defeated Cardinals (2-9), 3-1 | Robison Field (1-0) | 3-5 | |
| » Starters: Wilbur Cooper vs Lee Meadows | Sixth | 5 out |
| Monday, May 5 |
| » Defeated Cardinals (2-10), 5-2 | Robison Field (2-0) | 4-5 | Won 2 |
| » Starters: Babe Adams vs Bill Doak | Sixth | 3½ out |
| Tuesday, May 6 |
| » Lost to Cardinals (3-10), 2-1 | Robison Field (2-1) | 4-6 | |
| » Starters: Bill Evans vs Jakie May | Sixth | 4½ out |
| Thursday, May 8 |
| » Defeated Cardinals (3-11), 4-2 | Forbes Field (1-2) | 5-6 | |
| » Starters: Bill Sherdel vs Earl Hamilton | Fifth | 4½ out |
| Sunday, May 11 |
| » Lost to Cubs (9-5), 3-0 | Wrigley Field (2-2) | 5-7 | |
| » Starters: Babe Adams vs Phil Douglas | Fifth | 4½ out |
| Monday, May 12 |
| » Defeated Cubs (9-6), 3-2 | Forbes Field (2-2) | 6-7 | |
| » Starters: Claude Hendrix vs Wilbur Cooper | Fifth | 3½ out |
| Tuesday, May 13 |
| » Lost to Phillies (5-6), 3-2 | Baker Bowl (0-1) | 6-8 | |
| » Starters: Earl Hamilton vs Elmer Jacobs | Sixth | 4½ out |
| Wednesday, May 14 |
| » Defeated Phillies (5-7), 8-3 | Baker Bowl (1-1) | 7-8 | |
| » Starters: Frank Miller vs Milt Watson | Fifth | 4½ out |
| Thursday, May 15 |
| » Defeated Phillies (5-8), 5-0 | Baker Bowl (2-1) | 8-8 | Won 2 |
| » Starters: Babe Adams vs Frank Woodward | Third | 3½ out |
| » Major-league debuts: Cliff Lee (Pirates) |
| Friday, May 16 |
| » Defeated Phillies (5-9), 8-3 | Baker Bowl (3-1) | 9-8 | Won 3 |
| » Starters: Wilbur Cooper vs Joe Oeschger | Fourth | 3½ out |
| Saturday, May 17 |
| » Lost to Braves (3-11), 3-2 | Braves Field (0-1) | 9-9 | |
| » Starters: Bill Evans vs Ray Keating | Fourth | 4 out |
| Monday, May 19 |
| » Lost to Braves (4-11), 2-1 | Braves Field (0-2) | 9-10 | Lost 2 |
| » Starters: Babe Adams vs Art Nehf | Fifth | 4½ out |
| Tuesday, May 20 |
| » Defeated Braves (4-12), 3-2 | Braves Field (1-2) | 10-10 | |
| » Starters: Earl Hamilton vs Dick Rudolph | Fourth | 4½ out |
| Wednesday, May 21 |
| » Defeated Braves (4-13), 4-2 | Braves Field (2-2) | 11-10 | Won 2 |
| » Starters: Wilbur Cooper vs Pat Ragan | Fourth | 4 out |
| Friday, May 23 |
| » Lost to Dodgers (13-7), 6-4 | Ebbets Field (0-1) | 11-11 | |
| » Starters: Frank Miller vs Jeff Pfeffer | Fifth | 5 out |
| Saturday, May 24 |
| » Lost to Dodgers (14-7), 6-4 | Ebbets Field (0-2) | 11-12 | Lost 2 |
| » Starters: Erskine Mayer vs Burleigh Grimes | Fifth | 5 out |
| Sunday, May 25 |
| » Lost to Dodgers (15-7), 5-0 | Ebbets Field (0-3) | 11-13 | Lost 3 |
| » Starters: Earl Hamilton vs Sherry Smith | Fifth | 6 out |
| Monday, May 26 |
| » Lost to Giants (17-6), 4-3 | Polo Grounds V (0-1) | 11-14 | Lost 4 |
| » Starters: Wilbur Cooper vs Rube Benton | Sixth | 7 out |
| Tuesday, May 27 |
| » Lost to Giants (18-6), 10-2 | Polo Grounds V (0-2) | 11-15 | Lost 5 |
| » Starters: Frank Miller vs Jesse Barnes | Sixth | 8 out |
| Wednesday, May 28 |
| » Defeated Giants (18-7), 6-2 | Polo Grounds V (1-2) | 12-15 | |
| » Starters: Babe Adams vs Jean Dubuc | Sixth | 7 out |
| Thursday, May 29 |
| » Lost to Reds (18-10), 3-1 | Forbes Field (2-3) | 12-16 | |
| » Starters: Slim Sallee vs Erskine Mayer | Sixth | 8 out |
| Friday, May 30 |
| » Defeated Reds (18-11), 9-3 | Forbes Field (3-3) | 13-16 | |
| » Starters: Rube Bressler vs Frank Miller | Fourth | 8 out |
| » Defeated Reds (18-12), 3-2 | Forbes Field (4-3) | 14-16 | Won 2 |
| » Starters: Hod Eller vs Wilbur Cooper | Fourth | 8 out |
| Saturday, May 31 |
| » Defeated Reds (18-13), 10-5 | Forbes Field (5-3) | 15-16 | Won 3 |
| » Starters: Dolf Luque vs Earl Hamilton | Fourth | 7 out |
| Sunday, June 1 |
| » Defeated Reds (18-14), 4-3 | Crosley Field (1-2) | 16-16 | Won 4 |
| » Starters: Babe Adams vs Ray Fisher | Fourth | 7½ out |
| » Lost to Reds (19-14), 10-2 | Crosley Field (1-3) | 16-17 | |
| » Starters: Bill Evans vs Dutch Ruether | Fourth | 7½ out |
| Monday, June 2 |
| » Lost to Cubs (16-16), 7-0 | Wrigley Field (2-3) | 16-18 | Lost 2 |
| » Starters: Erskine Mayer vs Pete Alexander | Fifth | 9½ out |
| » Lost to Cubs (17-16), 2-1 | Wrigley Field (2-4) | 16-19 | Lost 3 |
| » Starters: Wilbur Cooper vs Phil Douglas | Fifth | 9½ out |
| Tuesday, June 3 |
| » Lost to Cubs (18-16), 1-0 | Wrigley Field (2-5) | 16-20 | Lost 4 |
| » Starters: Frank Miller vs Speed Martin | Sixth | 9½ out |
| Wednesday, June 4 |
| » Defeated Cubs (18-17), 1-0 | Wrigley Field (3-5) | 17-20 | |
| » Starters: Earl Hamilton vs Hippo Vaughn | Sixth | 8½ out |
| Friday, June 6 |
| » Defeated Giants (24-11), 7-1 | Forbes Field (6-3) | 18-20 | Won 2 |
| » Starters: Rube Benton vs Babe Adams | Fifth | 7½ out |
| Saturday, June 7 |
| » Lost to Giants (25-11), 9-2 | Forbes Field (6-4) | 18-21 | |
| » Starters: Red Causey vs Wilbur Cooper | Fifth | 8½ out |
| Tuesday, June 10 |
| » Defeated Dodgers (20-21), 10-6 | Forbes Field (7-4) | 19-21 | |
| » Starters: Jeff Pfeffer vs Earl Hamilton | Fifth | 8½ out |
| Wednesday, June 11 |
| » Defeated Dodgers (20-22), 3-2 | Forbes Field (8-4) | 20-21 | Won 2 |
| » Starters: Leon Cadore vs Babe Adams | Fourth | 7½ out |
| Thursday, June 12 |
| » Defeated Dodgers (20-23), 5-4 | Forbes Field (9-4) | 21-21 | Won 3 |
| » Starters: Sherry Smith vs Frank Miller | Fourth | 7½ out |
| Friday, June 13 |
| » Defeated Dodgers (20-24), 3-0 | Forbes Field (10-4) | 22-21 | Won 4 |
| » Starters: Larry Cheney vs Wilbur Cooper | Fourth | 6½ out |
| Saturday, June 14 |
| » Defeated Phillies (15-24), 8-1 | Forbes Field (11-4) | 23-21 | Won 5 |
| » Starters: Brad Hogg vs Erskine Mayer | Fourth | 6½ out |
| Monday, June 16 |
| » Defeated Phillies (15-25), 6-5 | Forbes Field (12-4) | 24-21 | Won 6 |
| » Starters: Frank Woodward vs Babe Adams | Third | 7 out |
| Tuesday, June 17 |
| » Defeated Phillies (15-26), 6-0 | Forbes Field (13-4) | 25-21 | Won 7 |
| » Starters: Elmer Jacobs vs Frank Miller | Third | 6 out |
| Wednesday, June 18 |
| » Lost to Braves (15-28), 6-5 | Forbes Field (13-5) | 25-22 | |
| » Starters: Dick Rudolph vs Wilbur Cooper | Third | 6 out |
| Thursday, June 19 |
| » Defeated Braves (15-29), 6-5 | Forbes Field (14-5) | 26-22 | |
| » Starters: Art Nehf vs Erskine Mayer | Third | 6 out |
| Friday, June 20 |
| » Defeated Braves (15-30), 4-0 | Forbes Field (15-5) | 27-22 | Won 2 |
| » Starters: Al Demaree vs Earl Hamilton | Third | 6 out |
| Saturday, June 21 |
| » Defeated Braves (15-31), 1-0 | Forbes Field (16-5) | 28-22 | Won 3 |
| » Starters: Ray Keating vs Babe Adams | Third | 6 out |
| Sunday, June 22 |
| » Defeated Cardinals (22-28), 7-6 | Robison Field (3-1) | 29-22 | Won 4 |
| » Starters: Erskine Mayer vs Bill Sherdel | Third | 5 out |
| Monday, June 23 |
| » Defeated Cardinals (22-29), 3-2 | Robison Field (4-1) | 30-22 | Won 5 |
| » Starters: Frank Miller vs Oscar Tuero | Third | 4½ out |
| Tuesday, June 24 |
| » Lost to Cardinals (23-29), 9-2 | Robison Field (4-2) | 30-23 | |
| » Starters: Wilbur Cooper vs Marv Goodwin | Third | 5 out |
| Wednesday, June 25 |
| » Lost to Cardinals (24-29), 3-1 | Robison Field (4-3) | 30-24 | Lost 2 |
| » Starters: Earl Hamilton vs Bill Doak | Third | 5 out |
| Thursday, June 26 |
| » Lost to Reds (33-21), 7-0 | Crosley Field (1-4) | 30-25 | Lost 3 |
| » Starters: Babe Adams vs Dutch Ruether | Third | 5½ out |
| Friday, June 27 |
| » Lost to Reds (34-21), 5-2 | Forbes Field (16-6) | 30-26 | Lost 4 |
| » Starters: Ray Fisher vs Hal Carlson | Fourth | 6 out |
| Saturday, June 28 |
| » Lost to Reds (35-21), 3-0 | Forbes Field (16-7) | 30-27 | Lost 5 |
| » Starters: Slim Sallee vs Frank Miller | Fourth | 6½ out |
| Sunday, June 29 |
| » Defeated Cubs (32-27), 7-4 | Wrigley Field (4-5) | 31-27 | |
| » Starters: Wilbur Cooper vs Hippo Vaughn | Fourth | 6 out |
| Monday, June 30 |
| » Defeated Cardinals (26-33), 4-1 | Forbes Field (17-7) | 32-27 | Won 2 |
| » Starters: Jakie May vs Babe Adams | Third | 6 out |
| Tuesday, July 1 |
| » Defeated Cardinals (26-34), 11-4 | Forbes Field (18-7) | 33-27 | Won 3 |
| » Starters: Bill Doak vs Erskine Mayer | Third | 6 out |
| Wednesday, July 2 |
| » Lost to Cardinals (27-34), 4-2 | Forbes Field (18-8) | 33-28 | |
| » Starters: Jakie May vs Earl Hamilton | Third | 6 out |
| Thursday, July 3 |
| » Defeated Cubs (33-31), 4-2 | Forbes Field (19-8) | 34-28 | |
| » Starters: Phil Douglas vs Wilbur Cooper | Third | 5 out |
| Friday, July 4 |
| » Lost to Cubs (34-31), 7-3 | Forbes Field (19-9) | 34-29 | |
| » Starters: Claude Hendrix vs Frank Miller | Third | 7 out |
| » Lost to Cubs (35-31), 4-1 | Forbes Field (19-10) | 34-30 | Lost 2 |
| » Starters: Hippo Vaughn vs Babe Adams | Third | 7 out |
| Saturday, July 5 |
| » Lost to Cubs (36-31), 10-2 | Forbes Field (19-11) | 34-31 | Lost 3 |
| » Starters: Paul Carter vs Earl Hamilton | Fourth | 8 out |
| Sunday, July 6 |
| » Lost to Reds (43-23), 8-1 | Crosley Field (1-5) | 34-32 | Lost 4 |
| » Starters: Wilbur Cooper vs Slim Sallee | Fourth | 8½ out |
| » Game at Crosley Field interrupted in the 7th inning with the score of Reds 2, Pirates 0. Completed on July 27. |
| Monday, July 7 |
| » Defeated Cardinals (27-40), 14-9 | Forbes Field (20-11) | 35-32 | |
| » Starters: Red Ames vs Erskine Mayer | Fourth | 9 out |
| Tuesday, July 8 |
| » Lost to Dodgers (35-32), 2-1 | Ebbets Field (0-4) | 35-33 | |
| » Starters: Frank Miller vs Leon Cadore | Fifth | 10 out |
| Wednesday, July 9 |
| » Defeated Dodgers (35-33), 2-0 | Ebbets Field (1-4) | 36-33 | |
| » Starters: Babe Adams vs Burleigh Grimes | Fourth | 9 out |
| Friday, July 11 |
| » Defeated Dodgers (35-34), 5-2 | Ebbets Field (2-4) | 37-33 | Won 2 |
| » Starters: Hal Carlson vs Jeff Pfeffer | Fourth | 9 out |
| Saturday, July 12 |
| » Defeated Giants (44-23), 1-0 | Polo Grounds V (2-2) | 38-33 | Won 3 |
| » Starters: Wilbur Cooper vs Fred Toney | Fourth | 9½ out |
| Future Pirate Johnny Wyrostek is born in Fairmont City, IL. |
| Sunday, July 13 |
| » Lost to Giants (45-23), 8-2 | Polo Grounds V (2-3) | 38-34 | |
| » Starters: Earl Hamilton vs Rube Benton | Fourth | 10 out |
| Monday, July 14 |
| » Lost to Giants (46-23), 5-4 | Polo Grounds V (2-4) | 38-35 | Lost 2 |
| » Starters: Frank Miller vs Red Causey | Fourth | 10 out |
| Friday, July 18 |
| » Defeated Braves (26-45), 2-0 | Braves Field (3-2) | 39-35 | |
| » Starters: Frank Miller vs Dick Rudolph | Fourth | 10 out |
| Saturday, July 19 |
| » Lost to Braves (27-45), 2-1 | Braves Field (3-3) | 39-36 | |
| » Starters: Wilbur Cooper vs Dick Rudolph | Fourth | 11 out |
| Wednesday, July 23 |
| » Lost to Phillies (24-47), 6-1 | Baker Bowl (3-2) | 39-37 | Lost 2 |
| » Starters: Hal Carlson vs Lee Meadows | Fourth | 11½ out |
| » Defeated Phillies (24-48), 1-0 | Baker Bowl (4-2) | 40-37 | |
| » Starters: Frank Miller vs Eppa Rixey | Fourth | 11½ out |
| Thursday, July 24 |
| » Lost to Reds (50-27), 3-1 | Forbes Field (20-12) | 40-38 | |
| » Starters: Dutch Ruether vs Wilbur Cooper | Fourth | 12½ out |
| Friday, July 25 |
| » Lost to Reds (51-27), 4-0 | Forbes Field (20-13) | 40-39 | Lost 2 |
| » Starters: Hod Eller vs Babe Adams | Fourth | 13½ out |
| Saturday, July 26 |
| » Lost to Reds (52-27), 4-2 | Forbes Field (20-14) | 40-40 | Lost 3 |
| » Starters: Jimmy Ring vs Frank Miller | Fourth | 13½ out |
| Sunday, July 27 |
| » Lost to Reds (53-27), 5-3 | Crosley Field (1-6) | 40-41 | Lost 4 |
| » Starters: Elmer Ponder vs Slim Sallee | Fifth | 15 out |
| » Lost to Reds (54-27), 3-1 | Crosley Field (1-7) | 40-42 | Lost 5 |
| » Starters: Hal Carlson vs Dutch Ruether | Fifth | 15 out |
| Monday, July 28 |
| » Lost to Reds (55-27), 8-7 | Crosley Field (1-8) | 40-43 | Lost 6 |
| » Starters: Earl Hamilton vs Ed Gerner | Fifth | 16 out |
| Tuesday, July 29 |
| » Lost to Giants (54-24), 3-0 | Forbes Field (20-15) | 40-44 | Lost 7 |
| » Starters: Fred Toney vs Babe Adams | Fifth | 16 out |
| » Defeated Giants (54-25), 7-6 | Forbes Field (21-15) | 41-44 | |
| » Starters: Rube Benton vs Wilbur Cooper | Fifth | 16 out |
| Wednesday, July 30 |
| » Lost to Giants (55-25), 9-0 | Forbes Field (21-16) | 41-45 | |
| » Starters: Jesse Barnes vs Elmer Ponder | Fifth | 16 out |
| » Defeated Giants (55-26), 6-1 | Forbes Field (22-16) | 42-45 | |
| » Starters: Pol Perritt vs Frank Miller | Fifth | 16 out |
| » Major-league debuts: Jigger Statz (Giants) |
| Thursday, July 31 |
| » Lost to Giants (56-26), 5-2 | Forbes Field (22-17) | 42-46 | |
| » Starters: Phil Douglas vs Hal Carlson | Fifth | 17 out |
| Friday, August 1 |
| » Lost to Braves (32-52), 2-1 | Forbes Field (22-18) | 42-47 | Lost 2 |
| » Starters: Art Nehf vs Earl Hamilton | Fifth | 18½ out |
| Saturday, August 2 |
| » Defeated Braves (32-53), 4-2 | Forbes Field (23-18) | 43-47 | |
| » Starters: Dana Fillingim vs Wilbur Cooper | Fifth | 18½ out |
| Tuesday, August 5 |
| » Lost to Phillies (33-52), 2-0 | Forbes Field (23-19) | 43-48 | |
| » Starters: Lee Meadows vs Babe Adams | Fifth | 19 out |
| Thursday, August 7 |
| » Lost to Phillies (34-52), 5-3 | Forbes Field (23-20) | 43-49 | Lost 2 |
| » Starters: Eppa Rixey vs Frank Miller | Fifth | 19½ out |
| Friday, August 8 |
| » Defeated Dodgers (45-47), 3-0 | Forbes Field (24-20) | 44-49 | |
| » Starters: Al Mamaux vs Wilbur Cooper | Fifth | 19½ out |
| Saturday, August 9 |
| » Lost to Dodgers (46-47), 2-0 | Forbes Field (24-21) | 44-50 | |
| » Starters: Jeff Pfeffer vs Hal Carlson | Fifth | 20½ out |
| Sunday, August 10 |
| » Defeated Dodgers (46-48), 5-3 | Ebbets Field (3-4) | 45-50 | |
| » Starters: Babe Adams vs Leon Cadore | Fifth | 20½ out |
| Monday, August 11 |
| » Defeated Dodgers (46-49), 5-2 | Ebbets Field (4-4) | 46-50 | Won 2 |
| » Starters: Frank Miller vs Sherry Smith | Fifth | 19½ out |
| Wednesday, August 13 |
| » Defeated Braves (37-55), 3-2 | Braves Field (4-3) | 47-50 | Won 3 |
| » Starters: Wilbur Cooper vs Dick Rudolph | Fourth | 20 out |
| Friday, August 15 |
| » Lost to Braves (38-55), 5-3 | Braves Field (4-4) | 47-51 | |
| » Starters: Babe Adams vs Red Causey | Fifth | 21 out |
| » Lost to Braves (39-55), 3-2 | Braves Field (4-5) | 47-52 | Lost 2 |
| » Starters: Hal Carlson vs Dana Fillingim | Fifth | 21 out |
| Saturday, August 16 |
| » Defeated Phillies (36-59), 6-4 | Baker Bowl (5-2) | 48-52 | |
| » Starters: Frank Miller vs Eppa Rixey | Fifth | 21½ out |
| » Lost to Phillies (37-59), 4-0 | Baker Bowl (5-3) | 48-53 | |
| » Starters: Elmer Ponder vs Eppa Rixey | Fifth | 21½ out |
| Monday, August 18 |
| » Defeated Phillies (37-60), 3-2 | Baker Bowl (6-3) | 49-53 | |
| » Starters: Wilbur Cooper vs George Smith | Fifth | 20½ out |
| Tuesday, August 19 |
| » Defeated Phillies (37-61), 5-4 | Baker Bowl (7-3) | 50-53 | Won 2 |
| » Starters: Babe Adams vs Lee Meadows | Fourth | 21 out |
| Wednesday, August 20 |
| » Defeated Dodgers (50-56), 5-1 | Ebbets Field (5-4) | 51-53 | Won 3 |
| » Starters: Frank Miller vs Burleigh Grimes | Fourth | 21 out |
| Thursday, August 21 |
| » Lost to Dodgers (51-56), 3-2 | Ebbets Field (5-5) | 51-54 | |
| » Starters: Babe Adams vs Jeff Pfeffer | Fourth | 22 out |
| Saturday, August 23 |
| » Defeated Giants (67-39), 6-1 | Polo Grounds V (3-4) | 52-54 | |
| » Starters: Wilbur Cooper vs Jesse Barnes | Fourth | 23 out |
| Sunday, August 24 |
| » Lost to Giants (68-39), 1-0 | Polo Grounds V (3-5) | 52-55 | |
| » Starters: Hal Carlson vs Fred Toney | Fourth | 23½ out |
| Tuesday, August 26 |
| » Lost to Giants (69-39), 9-1 | Polo Grounds V (3-6) | 52-56 | Lost 2 |
| » Starters: Frank Miller vs Art Nehf | Fifth | 25 out |
| » Defeated Giants (69-40), 4-1 | Polo Grounds V (4-6) | 53-56 | |
| » Starters: Babe Adams vs Rube Benton | Fifth | 25 out |
| Thursday, August 28 |
| » Lost to Cardinals (40-69), 3-1 | Forbes Field (24-22) | 53-57 | |
| » Starters: Ferdie Schupp vs Wilbur Cooper | Fifth | 25½ out |
| Friday, August 29 |
| » Defeated Cardinals (40-70), 5-3 | Forbes Field (25-22) | 54-57 | |
| » Starters: Bill Sherdel vs Frank Miller | Fifth | 25 out |
| Future Pirate Billy Cox is born in Newport, PA. |
| Saturday, August 30 |
| » Defeated Reds (81-35), 1-0 | Forbes Field (26-22) | 55-57 | Won 2 |
| » Starters: Jimmy Ring vs Babe Adams | Fifth | 24 out |
| Sunday, August 31 |
| » Defeated Reds (81-36), 3-2 | Crosley Field (2-8) | 56-57 | Won 3 |
| » Starters: Hal Carlson vs Dutch Ruether | Fourth | 23 out |
| Monday, September 1 |
| » Lost to Cardinals (41-72), 5-4 | Forbes Field (26-23) | 56-58 | |
| » Starters: Ferdie Schupp vs Frank Miller | Fourth | 23 out |
| » Defeated Cardinals (41-73), 2-1 | Forbes Field (27-23) | 57-58 | |
| » Starters: Bill Sherdel vs Wilbur Cooper | Fourth | 23 out |
| Tuesday, September 2 |
| » Lost to Cardinals (42-73), 2-1 | Forbes Field (27-24) | 57-59 | |
| » Starters: Marv Goodwin vs Elmer Ponder | Fourth | 24 out |
| Thursday, September 4 |
| » Defeated Cubs (63-54), 4-3 | Forbes Field (28-24) | 58-59 | |
| » Starters: Speed Martin vs Babe Adams | Fourth | 24 out |
| Friday, September 5 |
| » Lost to Cubs (64-54), 2-0 | Forbes Field (28-25) | 58-60 | |
| » Starters: Hippo Vaughn vs Hal Carlson | Fourth | 24 out |
| Saturday, September 6 |
| » Defeated Cubs (64-55), 11-0 | Forbes Field (29-25) | 59-60 | |
| » Starters: Claude Hendrix vs Wilbur Cooper | Fourth | 24 out |
| Sunday, September 7 |
| » Defeated Cubs (64-56), 2-1 | Wrigley Field (5-5) | 60-60 | Won 2 |
| » Starters: Earl Hamilton vs Pete Alexander | Fourth | 23½ out |
| Monday, September 8 |
| » Defeated Braves (49-69), 10-0 | Forbes Field (30-25) | 61-60 | Won 3 |
| » Starters: Al Demaree vs Frank Miller | Fourth | 23½ out |
| » Lost to Braves (50-69), 4-3 | Forbes Field (30-26) | 61-61 | |
| » Starters: Red Causey vs Elmer Ponder | Fourth | 23½ out |
| » Major-league debuts: Hod Ford (Braves) |
| Tuesday, September 9 |
| » Defeated Braves (50-70), 6-3 | Forbes Field (31-26) | 62-61 | |
| » Starters: Jack Scott vs Hal Carlson | Fourth | 22 out |
| » Defeated Braves (50-71), 6-1 | Forbes Field (32-26) | 63-61 | Won 2 |
| » Starters: Ray Keating vs Babe Adams | Fourth | 22 out |
| Thursday, September 11 |
| » Defeated Phillies (44-78), 7-1 | Forbes Field (33-26) | 64-61 | Won 3 |
| » Starters: Red Ames vs Wilbur Cooper | Fourth | 21½ out |
| » Defeated Phillies (44-79), 7-2 | Forbes Field (34-26) | 65-61 | Won 4 |
| » Starters: Lee Meadows vs Earl Hamilton | Fourth | 21½ out |
| Friday, September 12 |
| » Lost to Phillies (45-79), 6-5 | Forbes Field (34-27) | 65-62 | |
| » Starters: Mike Cantwell vs Frank Miller | Fourth | 22½ out |
| Saturday, September 13 |
| » Defeated Phillies (45-80), 4-1 | Forbes Field (35-27) | 66-62 | |
| » Starters: George Smith vs Hal Carlson | Fourth | 21½ out |
| » Defeated Phillies (45-81), 2-0 | Forbes Field (36-27) | 67-62 | Won 2 |
| » Starters: Brad Hogg vs Babe Adams | Fourth | 21½ out |
| Monday, September 15 |
| » Lost to Dodgers (62-67), 4-3 | Forbes Field (36-28) | 67-63 | |
| » Starters: Sherry Smith vs Wilbur Cooper | Fourth | 23½ out |
| » Lost to Dodgers (63-67), 6-0 | Forbes Field (36-29) | 67-64 | Lost 2 |
| » Starters: Leon Cadore vs Earl Hamilton | Fourth | 23½ out |
| Tuesday, September 16 |
| » Defeated Dodgers (63-68), 4-3 | Forbes Field (37-29) | 68-64 | |
| » Starters: Jeff Pfeffer vs Frank Miller | Fourth | 23½ out |
| Wednesday, September 17 |
| » Lost to Dodgers (64-68), 8-3 | Forbes Field (37-30) | 68-65 | |
| » Starters: Clarence Mitchell vs Hal Carlson | Fourth | 24 out |
| Thursday, September 18 |
| » Defeated Giants (80-50), 7-0 | Forbes Field (38-30) | 69-65 | |
| » Starters: Jesse Barnes vs Babe Adams | Fourth | 24 out |
| Friday, September 19 |
| » Lost to Giants (81-50), 4-2 | Forbes Field (38-31) | 69-66 | |
| » Starters: Art Nehf vs Wilbur Cooper | Fourth | 24½ out |
| Saturday, September 20 |
| » Defeated Giants (81-51), 2-0 | Forbes Field (39-31) | 70-66 | |
| » Starters: Rosy Ryan vs Hal Carlson | Fourth | 23½ out |
| Friday, September 26 |
| » Lost to Cardinals (53-82), 2-1 | Robison Field (4-4) | 70-67 | |
| » Starters: Babe Adams vs Ferdie Schupp | Fourth | 24½ out |
| Saturday, September 27 |
| » Lost to Cardinals (54-82), 5-3 | Robison Field (4-5) | 70-68 | Lost 2 |
| » Starters: Wilbur Cooper vs Bill Sherdel | Fourth | 25½ out |
| Sunday, September 28 |
| » Defeated Cardinals (54-83), 6-3 | Robison Field (5-5) | 71-68 | |
| » Starters: Jack Wisner vs Frank Woodward | Fourth | 24½ out |
| Thursday, October 16 |
| Future Pirate Ed Bahr is born in Rouleau, SK. |
Game information provided by Retrosheet (www.retrosheet.org) |
