| Friday, February 20 |
| Future Pirate Frankie Gustine is born in Hoopeston, IL. |
| Wednesday, April 14 |
| » Defeated Cardinals (0-1), 5-4 | Robison Field (1-0) | 1-0 | |
| » Starters: Babe Adams vs Bill Doak | First | -- |
| Thursday, April 15 |
| » Lost to Cardinals (1-1), 3-2 | Robison Field (1-1) | 1-1 | |
| » Starters: Wilbur Cooper vs Ferdie Schupp | Second | 1 out |
| Friday, April 16 |
| » Defeated Cardinals (1-2), 5-0 | Robison Field (2-1) | 2-1 | |
| » Starters: Hal Carlson vs Bill Sherdel | Second | ½ out |
| Saturday, April 17 |
| » Defeated Cardinals (1-3), 3-0 | Robison Field (3-1) | 3-1 | Won 2 |
| » Starters: Elmer Ponder vs Jesse Haines | Third | ½ out |
| Sunday, April 18 |
| » Defeated Reds (3-1), 2-1 | Crosley Field (1-0) | 4-1 | Won 3 |
| » Starters: Babe Adams vs Dutch Ruether | First | -- |
| Wednesday, April 21 |
| » Defeated Reds (3-2), 5-3 | Crosley Field (2-0) | 5-1 | Won 4 |
| » Starters: Wilbur Cooper vs Jimmy Ring | First | -- |
| Friday, April 23 |
| » Lost to Cardinals (4-4), 9-7 | Forbes Field (0-1) | 5-2 | |
| » Starters: Jesse Haines vs Hal Carlson | First | -- |
| Saturday, April 24 |
| » Lost to Cardinals (5-4), 6-0 | Forbes Field (0-2) | 5-3 | Lost 2 |
| » Starters: Bill Doak vs Elmer Ponder | Second | 1 out |
| Sunday, April 25 |
| » Defeated Cubs (2-8), 4-1 | Wrigley Field (1-0) | 6-3 | |
| » Starters: Babe Adams vs Claude Hendrix | First | -- |
| Monday, April 26 |
| » Major-league debuts: Huck Betts (Phillies) |
| Wednesday, April 28 |
| » Lost to Cubs (3-8), 11-1 | Wrigley Field (1-1) | 6-4 | |
| » Starters: Wilbur Cooper vs Pete Alexander | Second | 1 out |
| Thursday, April 29 |
| » Lost to Reds (8-3), 8-2 | Forbes Field (0-3) | 6-5 | Lost 2 |
| » Starters: Jimmy Ring vs Hal Carlson | Second | 2 out |
| Saturday, May 1 |
| » Lost to Reds (9-3), 7-1 | Forbes Field (0-4) | 6-6 | Lost 3 |
| » Starters: Dutch Ruether vs Babe Adams | Fourth | 3 out |
| Former Pirate Joe Leonard dies in Washington, DC at the age of 26. |
| Sunday, May 2 |
| » Defeated Reds (9-4), 3-0 | Crosley Field (3-0) | 7-6 | |
| » Starters: Wilbur Cooper vs Slim Sallee | Third | 2 out |
| Wednesday, May 5 |
| » Defeated Cubs (7-11), 2-0 | Forbes Field (1-4) | 8-6 | Won 2 |
| » Starters: Speed Martin vs Babe Adams | Third | 1½ out |
| Thursday, May 6 |
| » Defeated Cubs (7-12), 3-1 | Forbes Field (2-4) | 9-6 | Won 3 |
| » Starters: Claude Hendrix vs Wilbur Cooper | Second | 1½ out |
| Friday, May 7 |
| » Lost to Cubs (8-12), 6-4 | Forbes Field (2-5) | 9-7 | |
| » Starters: Pete Alexander vs Hal Carlson | Third | 1½ out |
| Saturday, May 8 |
| » Lost to Cubs (9-12), 4-1 | Forbes Field (2-6) | 9-8 | Lost 2 |
| » Starters: Hippo Vaughn vs Earl Hamilton | Third | 2 out |
| Sunday, May 9 |
| » Lost to Cubs (10-12), 8-7 | Wrigley Field (1-2) | 9-9 | Lost 3 |
| » Starters: Babe Adams vs Speed Martin | Fourth | 2 out |
| Monday, May 10 |
| » Defeated Phillies (9-11), 3-1 | Forbes Field (3-6) | 10-9 | |
| » Starters: Red Causey vs Wilbur Cooper | Fourth | 2½ out |
| Tuesday, May 11 |
| Future Pirate Gene Hermanski is born in Pittsfield, MA. |
| Wednesday, May 12 |
| » Defeated Phillies (9-12), 5-3 | Forbes Field (4-6) | 11-9 | Won 2 |
| » Starters: Eppa Rixey vs Hal Carlson | Fourth | 2½ out |
| Saturday, May 15 |
| » Lost to Giants (8-12), 2-0 | Forbes Field (4-7) | 11-10 | |
| » Starters: Art Nehf vs Babe Adams | Fourth | 3 out |
| Monday, May 17 |
| » Defeated Giants (8-13), 7-6 | Forbes Field (5-7) | 12-10 | |
| » Starters: Fred Toney vs Wilbur Cooper | Third | 2 out |
| Tuesday, May 18 |
| » Defeated Braves (10-10), 7-2 | Forbes Field (6-7) | 13-10 | Won 2 |
| » Starters: Joe Oeschger vs Earl Hamilton | Third | 1½ out |
| Wednesday, May 19 |
| » Defeated Braves (10-11), 2-1 | Forbes Field (7-7) | 14-10 | Won 3 |
| » Starters: Hugh McQuillan vs Wilbur Cooper | Second | 1 out |
| Thursday, May 20 |
| » Defeated Braves (10-12), 5-1 | Forbes Field (8-7) | 15-10 | Won 4 |
| » Starters: Dana Fillingim vs Babe Adams | Second | 1 out |
| Friday, May 21 |
| » Defeated Braves (10-13), 9-0 | Forbes Field (9-7) | 16-10 | Won 5 |
| » Starters: Eddie Eayrs vs Hal Carlson | First | -- |
| Saturday, May 22 |
| » Lost to Dodgers (14-10), 4-1 | Forbes Field (9-8) | 16-11 | |
| » Starters: Burleigh Grimes vs Wilbur Cooper | First | -- |
| Sunday, May 23 |
| » Defeated Dodgers (14-11), 1-0 | Ebbets Field (1-0) | 17-11 | |
| » Starters: Elmer Ponder vs Jeff Pfeffer | First | -- |
| Monday, May 24 |
| » Lost to Dodgers (15-11), 1-0 | Forbes Field (9-9) | 17-12 | |
| » Starters: Al Mamaux vs Babe Adams | First | -- |
| Tuesday, May 25 |
| » Defeated Dodgers (15-12), 2-0 | Forbes Field (10-9) | 18-12 | |
| » Starters: Leon Cadore vs Hal Carlson | First | -- |
| Wednesday, May 26 |
| » Lost to Dodgers (16-12), 3-2 | Forbes Field (10-10) | 18-13 | |
| » Starters: Burleigh Grimes vs Jack Wisner | First | -- |
| Friday, May 28 |
| » Lost to Reds (20-15), 6-1 | Crosley Field (3-1) | 18-14 | Lost 2 |
| » Starters: Wilbur Cooper vs Dutch Ruether | Third | 2 out |
| Saturday, May 29 |
| » Lost to Reds (21-15), 3-2 | Crosley Field (3-2) | 18-15 | Lost 3 |
| » Starters: Hal Carlson vs Dolf Luque | Fourth | 2 out |
| Sunday, May 30 |
| » Lost to Reds (22-15), 5-3 | Crosley Field (3-3) | 18-16 | Lost 4 |
| » Starters: Babe Adams vs Slim Sallee | Fourth | 3 out |
| Monday, May 31 |
| » Lost to Cardinals (17-21), 5-4 | Forbes Field (10-11) | 18-17 | Lost 5 |
| » Starters: Bill Sherdel vs Elmer Ponder | Fourth | 3 out |
| » Defeated Cardinals (17-22), 7-4 | Forbes Field (11-11) | 19-17 | |
| » Starters: Bill Doak vs Earl Hamilton | Fourth | 3 out |
| Tuesday, June 1 |
| » Lost to Cardinals (18-22), 5-4 | Forbes Field (11-12) | 19-18 | |
| » Starters: Marv Goodwin vs Earl Hamilton | Fourth | 3½ out |
| Wednesday, June 2 |
| » Lost to Cardinals (19-22), 6-2 | Forbes Field (11-13) | 19-19 | Lost 2 |
| » Starters: Ferdie Schupp vs Hal Carlson | Fourth | 4½ out |
| Sunday, June 6 |
| » Defeated Reds (25-17), 3-1 | Crosley Field (4-3) | 20-19 | |
| » Starters: Wilbur Cooper vs Dutch Ruether | Fourth | 4½ out |
| Wednesday, June 9 |
| » Lost to Braves (19-22), 7-6 | Braves Field (0-1) | 20-20 | |
| » Starters: Babe Adams vs Joe Oeschger | Fourth | 5½ out |
| Thursday, June 10 |
| » Lost to Braves (20-22), 2-1 | Braves Field (0-2) | 20-21 | Lost 2 |
| » Starters: Wilbur Cooper vs Jack Scott | Fifth | 5½ out |
| Future Pirate Johnny Podgajny is born in Chester, PA. |
| Friday, June 11 |
| » Lost to Braves (21-22), 3-0 | Braves Field (0-3) | 20-22 | Lost 3 |
| » Starters: Earl Hamilton vs Dana Fillingim | Sixth | 5½ out |
| Saturday, June 12 |
| » Defeated Phillies (19-28), 6-4 | Baker Bowl (1-0) | 21-22 | |
| » Starters: Hal Carlson vs Eppa Rixey | Fifth | 4½ out |
| Monday, June 14 |
| » Defeated Phillies (19-29), 6-1 | Baker Bowl (2-0) | 22-22 | Won 2 |
| » Starters: Wilbur Cooper vs Bert Gallia | Fifth | 4 out |
| Tuesday, June 15 |
| » Defeated Phillies (19-30), 7-6 | Baker Bowl (3-0) | 23-22 | Won 3 |
| » Starters: Babe Adams vs George Smith | Fourth | 3½ out |
| Friday, June 18 |
| » Lost to Giants (22-30), 5-4 | Polo Grounds V (0-1) | 23-23 | |
| » Starters: Wilbur Cooper vs Jesse Barnes | Fifth | 4 out |
| Saturday, June 19 |
| » Defeated Giants (22-31), 3-0 | Polo Grounds V (1-1) | 24-23 | |
| » Starters: Babe Adams vs Art Nehf | Fifth | 4 out |
| Sunday, June 20 |
| » Lost to Giants (23-31), 8-0 | Polo Grounds V (1-2) | 24-24 | |
| » Starters: Hal Carlson vs Phil Douglas | Fifth | 4½ out |
| Tuesday, June 22 |
| » Defeated Dodgers (28-24), 9-7 | Ebbets Field (2-0) | 25-24 | |
| » Starters: Elmer Ponder vs Jeff Pfeffer | Fifth | 4 out |
| Wednesday, June 23 |
| » Lost to Dodgers (29-24), 5-2 | Ebbets Field (2-1) | 25-25 | |
| » Starters: Hal Carlson vs Rube Marquard | Fifth | 4 out |
| Thursday, June 24 |
| » Lost to Dodgers (30-24), 6-2 | Ebbets Field (2-2) | 25-26 | Lost 2 |
| » Starters: Babe Adams vs Al Mamaux | Fifth | 5 out |
| Friday, June 25 |
| » Defeated Cubs (30-28), 6-3 | Forbes Field (12-13) | 26-26 | |
| » Starters: Claude Hendrix vs Wilbur Cooper | Fifth | 4½ out |
| Saturday, June 26 |
| » Defeated Cubs (30-29), 9-4 | Forbes Field (13-13) | 27-26 | Won 2 |
| » Starters: Hippo Vaughn vs Earl Hamilton | Fourth | 3 out |
| Sunday, June 27 |
| » Defeated Cubs (30-30), 8-3 | Wrigley Field (2-2) | 28-26 | Won 3 |
| » Starters: Hal Carlson vs Pete Alexander | Fourth | 2 out |
| Monday, June 28 |
| » Lost to Cubs (31-30), 5-2 | Wrigley Field (2-3) | 28-27 | |
| » Starters: Babe Adams vs Lefty Tyler | Fifth | 3½ out |
| » Lost to Cubs (32-30), 5-4 | Wrigley Field (2-4) | 28-28 | Lost 2 |
| » Starters: Earl Hamilton vs Paul Carter | Fifth | 3½ out |
| Tuesday, June 29 |
| » Defeated Cubs (32-31), 4-3 | Wrigley Field (3-4) | 29-28 | |
| » Starters: Wilbur Cooper vs Speed Martin | Sixth | 4 out |
| » Lost to Cubs (33-31), 14-3 | Wrigley Field (3-5) | 29-29 | |
| » Starters: Johnny Meador vs Claude Hendrix | Sixth | 4 out |
| » Major-league debuts: Sheriff Blake (Pirates) |
| Wednesday, June 30 |
| » Lost to Cubs (34-31), 1-0 | Wrigley Field (3-6) | 29-30 | Lost 2 |
| » Starters: Elmer Ponder vs Hippo Vaughn | Fifth | 5 out |
| Thursday, July 1 |
| » Defeated Cardinals (34-32), 6-2 | Sportsman's Park III (1-0) | 30-30 | |
| » Starters: Hal Carlson vs Ferdie Schupp | Sixth | 4 out |
| Friday, July 2 |
| » Lost to Cardinals (35-32), 3-0 | Sportsman's Park III (1-1) | 30-31 | |
| » Starters: Earl Hamilton vs Bill Doak | Fifth | 5 out |
| Saturday, July 3 |
| » Defeated Cardinals (35-33), 3-1 | Sportsman's Park III (2-1) | 31-31 | |
| » Starters: Wilbur Cooper vs Marv Goodwin | Fifth | 5 out |
| Sunday, July 4 |
| » Lost to Reds (38-27), 5-0 | Crosley Field (4-4) | 31-32 | |
| » Starters: Babe Adams vs Dutch Ruether | Sixth | 6 out |
| Monday, July 5 |
| » Defeated Reds (38-28), 4-1 | Forbes Field (14-13) | 32-32 | |
| » Starters: Ray Fisher vs Hal Carlson | Fourth | 4 out |
| » Defeated Reds (38-29), 6-5 | Forbes Field (15-13) | 33-32 | Won 2 |
| » Starters: Dolf Luque vs Elmer Ponder | Fourth | 4 out |
| Tuesday, July 6 |
| » Lost to Reds (39-29), 7-2 | Forbes Field (15-14) | 33-33 | |
| » Starters: Jimmy Ring vs Johnny Meador | Fourth | 5 out |
| Wednesday, July 7 |
| » Defeated Phillies (27-41), 2-1 | Forbes Field (16-14) | 34-33 | |
| » Starters: George Smith vs Wilbur Cooper | Fifth | 4½ out |
| Thursday, July 8 |
| » Defeated Phillies (27-42), 1-0 | Forbes Field (17-14) | 35-33 | Won 2 |
| » Starters: Lee Meadows vs Babe Adams | Third | 4 out |
| Friday, July 9 |
| » Lost to Phillies (28-42), 4-1 | Forbes Field (17-15) | 35-34 | |
| » Starters: Eppa Rixey vs Hal Carlson | Fifth | 4½ out |
| Saturday, July 10 |
| » Lost to Phillies (29-42), 8-7 | Forbes Field (17-16) | 35-35 | Lost 2 |
| » Starters: Red Causey vs Earl Hamilton | Fifth | 6 out |
| » Lost to Phillies (30-42), 3-1 | Forbes Field (17-17) | 35-36 | Lost 3 |
| » Starters: Bill Hubbell vs Elmer Ponder | Fifth | 6 out |
| Monday, July 12 |
| » Defeated Braves (31-36), 3-2 | Forbes Field (18-17) | 36-36 | |
| » Starters: Dana Fillingim vs Babe Adams | Fourth | 7 out |
| Tuesday, July 13 |
| » Defeated Braves (31-37), 5-2 | Forbes Field (19-17) | 37-36 | Won 2 |
| » Starters: Jack Scott vs Hal Carlson | Third | 6 out |
| Wednesday, July 14 |
| » Defeated Braves (31-38), 4-3 | Forbes Field (20-17) | 38-36 | Won 3 |
| » Starters: Joe Oeschger vs Wilbur Cooper | Third | 6½ out |
| Thursday, July 15 |
| » Defeated Braves (31-39), 9-8 | Forbes Field (21-17) | 39-36 | Won 4 |
| » Starters: Hugh McQuillan vs Elmer Ponder | Third | 6½ out |
| Friday, July 16 |
| » Lost to Giants (37-41), 7-0 | Forbes Field (21-18) | 39-37 | |
| » Starters: Rube Benton vs Earl Hamilton | Third | 7½ out |
| Saturday, July 17 |
| » Defeated Giants (37-42), 2-0 | Forbes Field (22-18) | 40-37 | |
| » Starters: Fred Toney vs Babe Adams | Third | 8 out |
| » Lost to Giants (38-42), 4-2 | Forbes Field (22-19) | 40-38 | |
| » Starters: Jesse Barnes vs Hal Carlson | Third | 8 out |
| Tuesday, July 20 |
| » Lost to Giants (39-42), 5-2 | Forbes Field (22-20) | 40-39 | Lost 2 |
| » Starters: Art Nehf vs Wilbur Cooper | Third | 8 out |
| Wednesday, July 21 |
| » Defeated Dodgers (52-36), 4-3 | Forbes Field (23-20) | 41-39 | |
| » Starters: Rube Marquard vs Elmer Ponder | Third | 7 out |
| Thursday, July 22 |
| » Defeated Dodgers (52-37), 5-2 | Forbes Field (24-20) | 42-39 | Won 2 |
| » Starters: Leon Cadore vs Hal Carlson | Third | 6 out |
| Friday, July 23 |
| » Lost to Dodgers (53-37), 6-5 | Forbes Field (24-21) | 42-40 | |
| » Starters: Al Mamaux vs Babe Adams | Third | 7 out |
| Saturday, July 24 |
| » Defeated Dodgers (53-38), 5-1 | Forbes Field (25-21) | 43-40 | |
| » Starters: Burleigh Grimes vs Wilbur Cooper | Third | 6 out |
| Sunday, July 25 |
| » Defeated Dodgers (53-39), 5-4 | Ebbets Field (3-2) | 44-40 | Won 2 |
| » Starters: Elmer Ponder vs Clarence Mitchell | Third | 5 out |
| Monday, July 26 |
| » Lost to Dodgers (54-39), 6-4 | Ebbets Field (3-3) | 44-41 | |
| » Starters: Hal Carlson vs Jeff Pfeffer | Third | 6 out |
| Future Pirate Eddie Bockman is born in Santa Ana, CA. |
| Tuesday, July 27 |
| » Defeated Phillies (35-51), 7-1 | Baker Bowl (4-0) | 45-41 | |
| » Starters: Earl Hamilton vs Lee Meadows | Third | 5 out |
| Wednesday, July 28 |
| » Defeated Phillies (35-52), 6-3 | Baker Bowl (5-0) | 46-41 | Won 2 |
| » Starters: Wilbur Cooper vs George Smith | Third | 5½ out |
| » Lost to Phillies (36-52), 5-4 | Baker Bowl (5-1) | 46-42 | |
| » Starters: Babe Adams vs Red Causey | Third | 5½ out |
| Thursday, July 29 |
| » Lost to Phillies (37-52), 7-3 | Baker Bowl (5-2) | 46-43 | Lost 2 |
| » Starters: Elmer Ponder vs Eppa Rixey | Third | 5½ out |
| Future Pirate Erv Dusak is born in Chicago, IL. |
| Friday, July 30 |
| » Lost to Phillies (38-52), 7-2 | Baker Bowl (5-3) | 46-44 | Lost 3 |
| » Starters: Hal Carlson vs Bill Hubbell | Fourth | 5½ out |
| Saturday, July 31 |
| » Defeated Braves (39-47), 4-2 | Braves Field (1-3) | 47-44 | |
| » Starters: Wilbur Cooper vs Dick Rudolph | Third | 6 out |
| » Lost to Braves (40-47), 6-1 | Braves Field (1-4) | 47-45 | |
| » Starters: Earl Hamilton vs Dana Fillingim | Third | 6 out |
| Monday, August 2 |
| » Defeated Braves (40-48), 3-2 | Braves Field (2-4) | 48-45 | |
| » Starters: Babe Adams vs Joe Oeschger | Fourth | 5½ out |
| Tuesday, August 3 |
| » Defeated Braves (40-49), 3-2 | Braves Field (3-4) | 49-45 | Won 2 |
| » Starters: Elmer Ponder vs Hugh McQuillan | Fourth | 5½ out |
| Wednesday, August 4 |
| » Defeated Braves (40-50), 3-0 | Braves Field (4-4) | 50-45 | Won 3 |
| » Starters: Wilbur Cooper vs Dana Fillingim | Fourth | 5 out |
| Thursday, August 5 |
| » Defeated Dodgers (58-44), 8-5 | Ebbets Field (4-3) | 51-45 | Won 4 |
| » Starters: Hal Carlson vs Burleigh Grimes | Fourth | 4 out |
| Saturday, August 7 |
| » Defeated Dodgers (58-45), 7-0 | Ebbets Field (5-3) | 52-45 | Won 5 |
| » Starters: Babe Adams vs Sherry Smith | Third | 3 out |
| Sunday, August 8 |
| » Lost to Dodgers (59-45), 2-1 | Ebbets Field (5-4) | 52-46 | |
| » Starters: Elmer Ponder vs Rube Marquard | Fourth | 4 out |
| Monday, August 9 |
| » Lost to Giants (54-46), 9-0 | Polo Grounds V (1-3) | 52-47 | Lost 2 |
| » Starters: Wilbur Cooper vs Art Nehf | Fourth | 5 out |
| Wednesday, August 11 |
| » Lost to Giants (55-46), 5-1 | Polo Grounds V (1-4) | 52-48 | Lost 3 |
| » Starters: Earl Hamilton vs Rube Benton | Fourth | 6 out |
| » Lost to Giants (56-46), 6-3 | Polo Grounds V (1-5) | 52-49 | Lost 4 |
| » Starters: Hal Carlson vs Phil Douglas | Fourth | 6 out |
| Thursday, August 12 |
| » Defeated Giants (56-47), 2-0 | Polo Grounds V (2-5) | 53-49 | |
| » Starters: Babe Adams vs Jesse Barnes | Fourth | 5½ out |
| Friday, August 13 |
| » Lost to Cardinals (49-57), 4-2 | Forbes Field (25-22) | 53-50 | |
| » Starters: Ferdie Schupp vs Wilbur Cooper | Fourth | 6 out |
| Saturday, August 14 |
| » Lost to Cardinals (50-57), 1-0 | Forbes Field (25-23) | 53-51 | Lost 2 |
| » Starters: Bill Doak vs Elmer Ponder | Fourth | 6 out |
| » Tied Cardinals, 1-1 | Forbes Field (25-23) | 53-51 | |
| » Starters: Bill Sherdel vs Hal Carlson | Fourth | 6 out |
| Sunday, August 15 |
| » Defeated Cardinals (50-58), 4-2 | Sportsman's Park III (3-1) | 54-51 | |
| » Starters: Earl Hamilton vs Jakie May | Fourth | 6½ out |
| » Lost to Cardinals (51-58), 3-2 | Sportsman's Park III (3-2) | 54-52 | |
| » Starters: Jack Wisner vs Mike Kircher | Fourth | 6½ out |
| Monday, August 16 |
| » Defeated Cardinals (51-59), 3-2 | Sportsman's Park III (4-2) | 55-52 | |
| » Starters: Babe Adams vs Jesse Haines | Fourth | 6 out |
| Tuesday, August 17 |
| » Defeated Cardinals (51-60), 10-6 | Sportsman's Park III (5-2) | 56-52 | Won 2 |
| » Starters: Wilbur Cooper vs Ferdie Schupp | Fourth | 5½ out |
| Thursday, August 19 |
| » Lost to Phillies (45-65), 5-2 | Forbes Field (25-24) | 56-53 | |
| » Starters: Lee Meadows vs Hal Carlson | Fourth | 6½ out |
| Friday, August 20 |
| » Lost to Phillies (46-65), 4-2 | Forbes Field (25-25) | 56-54 | Lost 2 |
| » Starters: Huck Betts vs Elmer Ponder | Fourth | 7½ out |
| Saturday, August 21 |
| » Lost to Phillies (47-65), 3-1 | Forbes Field (25-26) | 56-55 | Lost 3 |
| » Starters: Eppa Rixey vs Wilbur Cooper | Fourth | 7 out |
| » Defeated Phillies (47-66), 5-0 | Forbes Field (26-26) | 57-55 | |
| » Starters: Bill Hubbell vs Babe Adams | Fourth | 7 out |
| Monday, August 23 |
| » Lost to Dodgers (66-50), 3-0 | Forbes Field (26-27) | 57-56 | |
| » Starters: Jeff Pfeffer vs Earl Hamilton | Fourth | 7½ out |
| Tuesday, August 24 |
| » Defeated Dodgers (66-51), 4-3 | Forbes Field (27-27) | 58-56 | |
| » Starters: Burleigh Grimes vs Hal Carlson | Fourth | 7½ out |
| Wednesday, August 25 |
| » Lost to Dodgers (67-51), 4-3 | Forbes Field (27-28) | 58-57 | |
| » Starters: Rube Marquard vs Elmer Ponder | Fourth | 8½ out |
| Thursday, August 26 |
| » Defeated Braves (47-65), 2-1 | Forbes Field (28-28) | 59-57 | |
| » Starters: Hugh McQuillan vs Babe Adams | Fourth | 7½ out |
| Friday, August 27 |
| » Defeated Braves (47-66), 8-1 | Forbes Field (29-28) | 60-57 | Won 2 |
| » Starters: Joe Oeschger vs Wilbur Cooper | Fourth | 7½ out |
| Saturday, August 28 |
| » Lost to Braves (48-66), 5-1 | Forbes Field (29-29) | 60-58 | |
| » Starters: Dana Fillingim vs Earl Hamilton | Fourth | 7½ out |
| Monday, August 30 |
| » Defeated Giants (66-54), 4-2 | Forbes Field (30-29) | 61-58 | |
| » Starters: Phil Douglas vs Hal Carlson | Fourth | 5½ out |
| » Defeated Giants (66-55), 2-1 | Forbes Field (31-29) | 62-58 | Won 2 |
| » Starters: Fred Toney vs Elmer Ponder | Fourth | 5½ out |
| Tuesday, August 31 |
| » Defeated Giants (66-56), 6-5 | Forbes Field (32-29) | 63-58 | Won 3 |
| » Starters: Jesse Barnes vs Babe Adams | Fourth | 5 out |
| Wednesday, September 1 |
| » Defeated Giants (66-57), 4-3 | Forbes Field (33-29) | 64-58 | Won 4 |
| » Starters: Rube Benton vs Wilbur Cooper | Fourth | 4½ out |
| Thursday, September 2 |
| » Lost to Giants (67-57), 5-1 | Forbes Field (33-30) | 64-59 | |
| » Starters: Jesse Barnes vs Earl Hamilton | Fourth | 5½ out |
| Friday, September 3 |
| » Lost to Cubs (64-64), 4-2 | Forbes Field (33-31) | 64-60 | Lost 2 |
| » Starters: Hippo Vaughn vs Hal Carlson | Fourth | 6½ out |
| Saturday, September 4 |
| » Defeated Cubs (64-65), 3-2 | Forbes Field (34-31) | 65-60 | |
| » Starters: Lefty Tyler vs Babe Adams | Fourth | 6 out |
| Sunday, September 5 |
| » Lost to Cubs (65-65), 2-0 | Wrigley Field (3-7) | 65-61 | |
| » Starters: Elmer Ponder vs Pete Alexander | Fourth | 7 out |
| Monday, September 6 |
| » Lost to Cubs (66-65), 5-2 | Forbes Field (34-32) | 65-62 | Lost 2 |
| » Starters: Speed Martin vs Wilbur Cooper | Fourth | 7½ out |
| » Defeated Cubs (66-66), 12-1 | Forbes Field (35-32) | 66-62 | |
| » Starters: Sweetbread Bailey vs Earl Hamilton | Fourth | 7½ out |
| Tuesday, September 7 |
| » Defeated Cubs (66-67), 7-4 | Forbes Field (36-32) | 67-62 | Won 2 |
| » Starters: Hippo Vaughn vs Hal Carlson | Fourth | 7 out |
| » Major-league debuts: Virgil Cheeves (Cubs) |
| Thursday, September 9 |
| » Defeated Phillies (52-80), 7-6 | Baker Bowl (6-3) | 68-62 | Won 3 |
| » Starters: Elmer Ponder vs Red Causey | Fourth | 7 out |
| Friday, September 10 |
| » Defeated Phillies (52-81), 8-3 | Baker Bowl (7-3) | 69-62 | Won 4 |
| » Starters: Wilbur Cooper vs Bill Hubbell | Fourth | 7 out |
| Saturday, September 11 |
| » Defeated Phillies (52-82), 3-2 | Baker Bowl (8-3) | 70-62 | Won 5 |
| » Starters: Earl Hamilton vs Lee Meadows | Fourth | 7½ out |
| Monday, September 13 |
| » Lost to Braves (54-75), 3-0 | Braves Field (4-5) | 70-63 | |
| » Starters: Babe Adams vs Jack Scott | Fourth | 9½ out |
| » Major-league debuts: Homer Summa (Pirates) |
| Wednesday, September 15 |
| » Defeated Braves (54-76), 2-1 | Braves Field (5-5) | 71-63 | |
| » Starters: Wilbur Cooper vs Hugh McQuillan | Fourth | 9½ out |
| » Lost to Braves (55-76), 4-1 | Braves Field (5-6) | 71-64 | |
| » Starters: Hal Carlson vs Dana Fillingim | Fourth | 9½ out |
| » Major-league debuts: Pie Traynor (Pirates) |
| Thursday, September 16 |
| » Defeated Giants (76-62), 3-1 | Polo Grounds V (3-5) | 72-64 | |
| » Starters: Earl Hamilton vs Jesse Barnes | Fourth | 10 out |
| » Lost to Giants (77-62), 4-0 | Polo Grounds V (3-6) | 72-65 | |
| » Starters: Elmer Ponder vs Art Nehf | Fourth | 10 out |
| Friday, September 17 |
| » Lost to Giants (78-62), 4-3 | Polo Grounds V (3-7) | 72-66 | Lost 2 |
| » Starters: Babe Adams vs Fred Toney | Fourth | 11 out |
| Saturday, September 18 |
| » Lost to Giants (79-62), 8-7 | Polo Grounds V (3-8) | 72-67 | Lost 3 |
| » Starters: Jimmy Zinn vs Slim Sallee | Fourth | 11 out |
| Sunday, September 19 |
| » Lost to Dodgers (87-59), 4-3 | Ebbets Field (5-5) | 72-68 | Lost 4 |
| » Starters: Wilbur Cooper vs Jeff Pfeffer | Fourth | 12 out |
| Monday, September 20 |
| » Lost to Dodgers (88-59), 2-1 | Ebbets Field (5-6) | 72-69 | Lost 5 |
| » Starters: Earl Hamilton vs Leon Cadore | Fourth | 13 out |
| Wednesday, September 22 |
| » Defeated Reds (77-65), 2-0 | Forbes Field (37-32) | 73-69 | |
| » Starters: Dolf Luque vs Babe Adams | Fourth | 12½ out |
| » Defeated Reds (77-66), 3-1 | Forbes Field (38-32) | 74-69 | Won 2 |
| » Starters: Dutch Ruether vs Elmer Ponder | Fourth | 12½ out |
| » Major-league debuts: Clyde Barnhart (Pirates) |
| Thursday, September 23 |
| » Defeated Reds (77-67), 4-0 | Forbes Field (39-32) | 75-69 | Won 3 |
| » Starters: Hod Eller vs Wilbur Cooper | Fourth | 12 out |
| » Major-league debuts: Cotton Tierney (Pirates) |
| Friday, September 24 |
| » Defeated Cardinals (70-77), 12-7 | Forbes Field (40-32) | 76-69 | Won 4 |
| » Starters: Ferdie Schupp vs Earl Hamilton | Fourth | 11½ out |
| Saturday, September 25 |
| » Defeated Cardinals (70-78), 2-1 | Forbes Field (41-32) | 77-69 | Won 5 |
| » Starters: Bill Doak vs Jimmy Zinn | Fourth | 11 out |
| » Lost to Cardinals (71-78), 3-1 | Forbes Field (41-33) | 77-70 | |
| » Starters: Jesse Haines vs Elmer Ponder | Fourth | 11 out |
| » Major-league debuts: Heinie Mueller (Cardinals) |
| Sunday, September 26 |
| » Lost to Reds (78-69), 8-0 | Crosley Field (4-5) | 77-71 | Lost 2 |
| » Starters: Babe Adams vs Buddy Napier | Fourth | 12 out |
| » Major-league debuts: Whitey Glazner (Pirates) |
| Tuesday, September 28 |
| » Lost to Reds (79-69), 2-0 | Crosley Field (4-6) | 77-72 | Lost 3 |
| » Starters: Wilbur Cooper vs Dolf Luque | Fourth | 13 out |
| » Lost to Reds (80-69), 5-3 | Crosley Field (4-7) | 77-73 | Lost 4 |
| » Starters: Earl Hamilton vs Hod Eller | Fourth | 13 out |
| » Major-league debuts: Johnny Morrison (Pirates) |
| Saturday, October 2 |
| » Lost to Reds (81-69), 13-4 | Forbes Field (41-34) | 77-74 | Lost 5 |
| » Starters: Ray Fisher vs Wilbur Cooper | Fourth | 14 out |
| » Lost to Reds (82-69), 7-3 | Forbes Field (41-35) | 77-75 | Lost 6 |
| » Starters: Lynn Brenton vs Jimmy Zinn | Fourth | 14 out |
| » Defeated Reds (82-70), 6-0 | Forbes Field (42-35) | 78-75 | |
| » Starters: Buddy Napier vs Johnny Morrison | Fourth | 14 out |
| Sunday, October 3 |
| » Defeated Cubs (75-79), 4-3 | Wrigley Field (4-7) | 79-75 | Won 2 |
| » Starters: Hal Carlson vs Lefty Tyler | Fourth | 14 out |
| Friday, October 8 |
| Future Pirate Catfish Metkovich is born in Angels Camp, CA. |
| Monday, November 8 |
| Future Pirate Wally Westlake is born in Gridley, CA. |
| Tuesday, December 21 |
| Future Pirate Bill Werle is born in Oakland, CA. |
Game information provided by Retrosheet (www.retrosheet.org) |
