| Wednesday, April 9 |
| » Major-league debuts: Benny Meyer (Dodgers) |
| Thursday, April 10 |
| » Major-league debuts: Ralph Young (Yankees) |
| Saturday, April 12 |
| » Defeated Reds (0-1), 9-2 | Crosley Field (1-0) | 1-0 | |
| » Starters: Babe Adams vs Art Fromme | First | -- |
| Sunday, April 13 |
| » Lost to Cubs (1-1), 7-4 | West Side Grounds (0-1) | 1-1 | |
| » Starters: Claude Hendrix vs Larry Cheney | Second | ½ out |
| Monday, April 14 |
| » Defeated Cubs (1-2), 8-5 | West Side Grounds (1-1) | 2-1 | |
| » Starters: Hank Robinson vs Lew Richie | Second | 1 out |
| Tuesday, April 15 |
| » Lost to Cubs (2-2), 5-4 | West Side Grounds (1-2) | 2-2 | |
| » Starters: Wilbur Cooper vs Charlie Smith | Fifth | 1 out |
| Thursday, April 17 |
| » Defeated Reds (1-3), 3-2 | Forbes Field (1-0) | 3-2 | |
| » Starters: George Suggs vs Babe Adams | Second | 1 out |
| Friday, April 18 |
| » Tied Reds, 5-5 | Forbes Field (1-0) | 3-2 | |
| » Starters: Art Fromme vs Howie Camnitz | Second | 1 out |
| Former Pirate Roscoe Miller dies in Corydon, IN at the age of 37. |
| Saturday, April 19 |
| » Defeated Reds (1-4), 6-5 | Forbes Field (2-0) | 4-2 | Won 2 |
| » Starters: Ralph Works vs Wilbur Cooper | Second | 1 out |
| Sunday, April 20 |
| » Defeated Cardinals (3-4), 5-4 | Robison Field (1-0) | 5-2 | Won 3 |
| » Starters: Marty O'Toole vs Bob Harmon | Second | 1½ out |
| Monday, April 21 |
| » Defeated Cardinals (3-5), 8-5 | Robison Field (2-0) | 6-2 | Won 4 |
| » Starters: Babe Adams vs Dan Griner | Second | 1½ out |
| Tuesday, April 22 |
| » Defeated Cardinals (3-6), 1-0 | Robison Field (3-0) | 7-2 | Won 5 |
| » Starters: Howie Camnitz vs Pol Perritt | Second | 2 out |
| Wednesday, April 23 |
| » Lost to Cardinals (4-6), 3-1 | Robison Field (3-1) | 7-3 | |
| » Starters: Claude Hendrix vs Bill Steele | Second | 1 out |
| Friday, April 25 |
| » Defeated Cubs (7-4), 6-3 | Forbes Field (3-0) | 8-3 | |
| » Starters: Lew Richie vs Hank Robinson | Second | 1 out |
| Saturday, April 26 |
| » Lost to Cubs (8-4), 7-2 | Forbes Field (3-1) | 8-4 | |
| » Starters: Charlie Smith vs Babe Adams | Second | 1 out |
| Sunday, April 27 |
| » Lost to Cubs (9-4), 7-5 | West Side Grounds (1-3) | 8-5 | Lost 2 |
| » Starters: Howie Camnitz vs Bert Humphries | Fourth | 1½ out |
| Monday, April 28 |
| » Lost to Cubs (10-4), 8-5 | West Side Grounds (1-4) | 8-6 | Lost 3 |
| » Starters: Claude Hendrix vs Fred Toney | Fourth | 2 out |
| Wednesday, April 30 |
| » Lost to Cardinals (8-7), 6-1 | Forbes Field (3-2) | 8-7 | Lost 4 |
| » Starters: Bill Steele vs Hank Robinson | Fifth | 3½ out |
| Thursday, May 1 |
| » Lost to Cardinals (9-7), 9-7 | Forbes Field (3-3) | 8-8 | Lost 5 |
| » Starters: Pol Perritt vs Howie Camnitz | Sixth | 3½ out |
| Friday, May 2 |
| » Defeated Cardinals (9-8), 5-4 | Forbes Field (4-3) | 9-8 | |
| » Starters: Dan Griner vs Claude Hendrix | Fifth | 3½ out |
| Saturday, May 3 |
| » Lost to Cardinals (10-8), 6-3 | Forbes Field (4-4) | 9-9 | |
| » Starters: Bill Steele vs Marty O'Toole | Sixth | 3½ out |
| Sunday, May 4 |
| » Defeated Reds (4-14), 1-0 | Crosley Field (2-0) | 10-9 | |
| » Starters: Babe Adams vs Art Fromme | Sixth | 3½ out |
| Tuesday, May 6 |
| » Lost to Braves (5-12), 3-2 | South End Grounds III (0-1) | 10-10 | |
| » Starters: Claude Hendrix vs Hub Perdue | Sixth | 3 out |
| Wednesday, May 7 |
| » Lost to Braves (6-12), 2-1 | South End Grounds III (0-2) | 10-11 | Lost 2 |
| » Starters: Marty O'Toole vs Lefty Tyler | Sixth | 3 out |
| Thursday, May 8 |
| » Lost to Braves (7-12), 6-1 | South End Grounds III (0-3) | 10-12 | Lost 3 |
| » Starters: Babe Adams vs Walt Dickson | Sixth | 3 out |
| Friday, May 9 |
| » Lost to Braves (8-12), 5-4 | South End Grounds III (0-4) | 10-13 | Lost 4 |
| » Starters: Howie Camnitz vs Bill James | Sixth | 4 out |
| Saturday, May 10 |
| » Lost to Phillies (12-6), 6-0 | Baker Bowl (0-1) | 10-14 | Lost 5 |
| » Starters: Claude Hendrix vs Eppa Rixey | Sixth | 5 out |
| Monday, May 12 |
| » Lost to Phillies (13-6), 6-5 | Baker Bowl (0-2) | 10-15 | Lost 6 |
| » Starters: Babe Adams vs Earl Moore | Seventh | 6 out |
| Tuesday, May 13 |
| » Lost to Phillies (14-6), 5-4 | Baker Bowl (0-3) | 10-16 | Lost 7 |
| » Starters: Howie Camnitz vs Tom Seaton | Seventh | 7 out |
| Wednesday, May 14 |
| » Defeated Phillies (14-7), 7-2 | Baker Bowl (1-3) | 11-16 | |
| » Starters: Claude Hendrix vs Erskine Mayer | Seventh | 6 out |
| Thursday, May 15 |
| » Defeated Giants (13-12), 7-2 | Polo Grounds V (1-0) | 12-16 | Won 2 |
| » Starters: Hank Robinson vs Al Demaree | Sixth | 6 out |
| Friday, May 16 |
| » Lost to Giants (14-12), 7-4 | Polo Grounds V (1-1) | 12-17 | |
| » Starters: Marty O'Toole vs Christy Mathewson | Seventh | 7 out |
| Saturday, May 17 |
| » Tied Giants, 1-1 | Polo Grounds V (1-1) | 12-17 | |
| » Starters: Babe Adams vs Jeff Tesreau | Seventh | 7 out |
| Monday, May 19 |
| » Lost to Giants (15-12), 3-2 | Polo Grounds V (1-2) | 12-18 | Lost 2 |
| » Starters: Howie Camnitz vs Rube Marquard | Seventh | 8 out |
| Tuesday, May 20 |
| » Defeated Dodgers (19-10), 4-1 | Ebbets Field (1-0) | 13-18 | |
| » Starters: Hank Robinson vs Frank Allen | Sixth | 8 out |
| Wednesday, May 21 |
| » Defeated Dodgers (19-11), 5-2 | Ebbets Field (2-0) | 14-18 | Won 2 |
| » Starters: Babe Adams vs Pat Ragan | Sixth | 8 out |
| Thursday, May 22 |
| » Defeated Dodgers (19-12), 1-0 | Ebbets Field (3-0) | 15-18 | Won 3 |
| » Starters: Wilbur Cooper vs Cliff Curtis | Sixth | 7½ out |
| Saturday, May 24 |
| » Defeated Cubs (17-17), 4-3 | Forbes Field (5-4) | 16-18 | Won 4 |
| » Starters: Larry Cheney vs Howie Camnitz | Sixth | 8 out |
| Sunday, May 25 |
| » Lost to Reds (10-25), 1-0 | Crosley Field (2-1) | 16-19 | |
| » Starters: Babe Adams vs Rube Benton | Sixth | 8½ out |
| Wednesday, May 28 |
| » Lost to Reds (11-25), 3-1 | Forbes Field (5-5) | 16-20 | Lost 2 |
| » Starters: George Suggs vs Claude Hendrix | Sixth | 9½ out |
| Thursday, May 29 |
| » Defeated Cubs (20-18), 5-4 | Forbes Field (6-5) | 17-20 | |
| » Starters: Bert Humphries vs Hank Robinson | Sixth | 8½ out |
| Friday, May 30 |
| » Defeated Cubs (20-19), 2-1 | Forbes Field (7-5) | 18-20 | Won 2 |
| » Starters: Ed Reulbach vs Howie Camnitz | Sixth | 7 out |
| Saturday, May 31 |
| » Defeated Cubs (20-20), 4-0 | Forbes Field (8-5) | 19-20 | Won 3 |
| » Starters: Charlie Smith vs Babe Adams | Fifth | 6 out |
| Monday, June 2 |
| » Defeated Braves (14-21), 7-4 | Forbes Field (9-5) | 20-20 | Won 4 |
| » Starters: Bill James vs Claude Hendrix | Fourth | 6 out |
| Tuesday, June 3 |
| » Defeated Braves (14-22), 7-2 | Forbes Field (10-5) | 21-20 | Won 5 |
| » Starters: Lefty Tyler vs Hank Robinson | Fourth | 5½ out |
| Wednesday, June 4 |
| » Lost to Phillies (24-11), 4-0 | Forbes Field (10-6) | 21-21 | |
| » Starters: Pete Alexander vs Howie Camnitz | Fifth | 6½ out |
| Thursday, June 5 |
| » Defeated Phillies (24-12), 6-2 | Forbes Field (11-6) | 22-21 | |
| » Starters: Eppa Rixey vs Babe Adams | Fourth | 5½ out |
| Friday, June 6 |
| » Lost to Phillies (25-12), 3-1 | Forbes Field (11-7) | 22-22 | |
| » Starters: Tom Seaton vs Claude Hendrix | Fourth | 6½ out |
| Saturday, June 7 |
| » Lost to Phillies (26-12), 6-0 | Forbes Field (11-8) | 22-23 | Lost 2 |
| » Starters: Erskine Mayer vs Howie Camnitz | Fifth | 7½ out |
| Monday, June 9 |
| » Lost to Dodgers (23-18), 10-7 | Forbes Field (11-9) | 22-24 | Lost 3 |
| » Starters: Pat Ragan vs Hank Robinson | Fifth | 9 out |
| Tuesday, June 10 |
| » Defeated Dodgers (23-19), 5-4 | Forbes Field (12-9) | 23-24 | |
| » Starters: Nap Rucker vs Claude Hendrix | Fifth | 9 out |
| Wednesday, June 11 |
| » Defeated Dodgers (23-20), 11-3 | Forbes Field (13-9) | 24-24 | Won 2 |
| » Starters: Eddie Stack vs Marty O'Toole | Fifth | 8 out |
| » Major-league debuts: Bill Fischer (Dodgers) |
| Thursday, June 12 |
| » Lost to Giants (26-19), 6-5 | Forbes Field (13-10) | 24-25 | |
| » Starters: Jeff Tesreau vs Howie Camnitz | Fifth | 9 out |
| Friday, June 13 |
| » Lost to Giants (27-19), 3-2 | Forbes Field (13-11) | 24-26 | Lost 2 |
| » Starters: Al Demaree vs Babe Adams | Fifth | 10 out |
| » Major-league debuts: Bob Coleman (Pirates) |
| Saturday, June 14 |
| » Lost to Giants (28-19), 6-5 | Forbes Field (13-12) | 24-27 | Lost 3 |
| » Starters: Christy Mathewson vs Marty O'Toole | Fifth | 11 out |
| Monday, June 16 |
| » Lost to Braves (22-27), 6-5 | Forbes Field (13-13) | 24-28 | Lost 4 |
| » Starters: Dick Rudolph vs Howie Camnitz | Fifth | 10½ out |
| Future Pirate Pete Coscarart is born in Escondido, CA. |
| Tuesday, June 17 |
| » Lost to Braves (23-27), 1-0 | Forbes Field (13-14) | 24-29 | Lost 5 |
| » Starters: Hub Perdue vs Marty O'Toole | Sixth | 10½ out |
| Wednesday, June 18 |
| » Lost to Braves (24-27), 2-1 | Forbes Field (13-15) | 24-30 | Lost 6 |
| » Starters: Lefty Tyler vs Wilbur Cooper | Sixth | 10½ out |
| Thursday, June 19 |
| » Defeated Braves (24-28), 5-4 | Forbes Field (14-15) | 25-30 | |
| » Starters: Otto Hess vs Babe Adams | Sixth | 10½ out |
| Friday, June 20 |
| » Defeated Giants (32-20), 7-3 | Forbes Field (15-15) | 26-30 | Won 2 |
| » Starters: Jeff Tesreau vs Marty O'Toole | Fifth | 10 out |
| Saturday, June 21 |
| » Lost to Reds (20-38), 8-6 | Crosley Field (2-2) | 26-31 | |
| » Starters: Howie Camnitz vs George Suggs | Fifth | 11½ out |
| Sunday, June 22 |
| » Defeated Reds (20-39), 5-4 | Crosley Field (3-2) | 27-31 | |
| » Starters: Babe Adams vs Red Ames | Fifth | 11 out |
| Monday, June 23 |
| » Lost to Reds (21-39), 7-6 | Crosley Field (3-3) | 27-32 | |
| » Starters: Wilbur Cooper vs Rube Benton | Fifth | 12 out |
| Wednesday, June 25 |
| » Defeated Cardinals (25-36), 9-1 | Robison Field (4-1) | 28-32 | |
| » Starters: Marty O'Toole vs Bob Harmon | Fifth | 12½ out |
| Thursday, June 26 |
| » Lost to Cardinals (26-36), 5-4 | Robison Field (4-2) | 28-33 | |
| » Starters: Claude Hendrix vs Slim Sallee | Fifth | 12 out |
| Friday, June 27 |
| » Defeated Cardinals (26-37), 4-3 | Robison Field (5-2) | 29-33 | |
| » Starters: Babe Adams vs Sandy Burk | Fifth | 11 out |
| Saturday, June 28 |
| » Defeated Cardinals (26-38), 12-5 | Robison Field (6-2) | 30-33 | Won 2 |
| » Starters: Marty O'Toole vs Dan Griner | Fifth | 10 out |
| Sunday, June 29 |
| » Lost to Cardinals (27-38), 4-3 | Robison Field (6-3) | 30-34 | |
| » Starters: Claude Hendrix vs Bob Harmon | Fifth | 10½ out |
| Monday, June 30 |
| » Lost to Cubs (34-32), 12-2 | West Side Grounds (1-5) | 30-35 | Lost 2 |
| » Starters: Howie Camnitz vs Jimmy Lavender | Fifth | 11 out |
| Tuesday, July 1 |
| » Lost to Cubs (35-32), 3-2 | West Side Grounds (1-6) | 30-36 | Lost 3 |
| » Starters: Hank Robinson vs Larry Cheney | Fifth | 12 out |
| Future Pirate Frank Barrett is born in Fort Lauderdale, FL. |
| Wednesday, July 2 |
| » Lost to Cubs (36-32), 6-4 | West Side Grounds (1-7) | 30-37 | Lost 4 |
| » Starters: Babe Adams vs Bert Humphries | Fifth | 13 out |
| Thursday, July 3 |
| » Defeated Cardinals (29-40), 4-0 | Forbes Field (16-15) | 31-37 | |
| » Starters: Bob Harmon vs Claude Hendrix | Fifth | 13 out |
| Friday, July 4 |
| » Tied Cardinals, 3-3 | Forbes Field (16-15) | 31-37 | |
| » Starters: Sandy Burk vs Hank Robinson | Fifth | 14½ out |
| » Lost to Cardinals (30-40), 12-8 | Forbes Field (16-16) | 31-38 | |
| » Starters: Dan Griner vs Wilbur Cooper | Fifth | 14½ out |
| Sunday, July 6 |
| » Defeated Reds (27-46), 10-4 | Crosley Field (4-3) | 32-38 | |
| » Starters: Claude Hendrix vs Rube Benton | Fifth | 14 out |
| » Defeated Reds (27-47), 4-2 | Crosley Field (5-3) | 33-38 | Won 2 |
| » Starters: Babe Adams vs George Suggs | Fifth | 14 out |
| Monday, July 7 |
| » Defeated Reds (27-48), 5-1 | Forbes Field (17-16) | 34-38 | Won 3 |
| » Starters: Mordecai Brown vs Hank Robinson | Fifth | 14 out |
| Tuesday, July 8 |
| » Defeated Phillies (41-27), 6-4 | Baker Bowl (2-3) | 35-38 | Won 4 |
| » Starters: Howie Camnitz vs Erskine Mayer | Fifth | 14 out |
| Wednesday, July 9 |
| » Defeated Phillies (41-28), 3-0 | Baker Bowl (3-3) | 36-38 | Won 5 |
| » Starters: Babe Adams vs Ad Brennan | Fifth | 14 out |
| Thursday, July 10 |
| » Defeated Phillies (41-29), 3-2 | Baker Bowl (4-3) | 37-38 | Won 6 |
| » Starters: George McQuillan vs George Chalmers | Fifth | 13 out |
| Friday, July 11 |
| » Defeated Phillies (41-30), 7-2 | Baker Bowl (5-3) | 38-38 | Won 7 |
| » Starters: Claude Hendrix vs Rube Marshall | Fourth | 13 out |
| Saturday, July 12 |
| » Defeated Braves (33-43), 6-4 | South End Grounds III (1-4) | 39-38 | Won 8 |
| » Starters: Hank Robinson vs Walt Dickson | Fourth | 13 out |
| Monday, July 14 |
| » Lost to Braves (34-43), 2-1 | South End Grounds III (1-5) | 39-39 | |
| » Starters: Babe Adams vs Hub Perdue | Fourth | 14 out |
| Tuesday, July 15 |
| » Defeated Braves (34-44), 6-3 | South End Grounds III (2-5) | 40-39 | |
| » Starters: George McQuillan vs Dick Rudolph | Fourth | 14 out |
| Wednesday, July 16 |
| » Defeated Braves (34-45), 3-1 | South End Grounds III (3-5) | 41-39 | Won 2 |
| » Starters: Howie Camnitz vs Otto Hess | Fourth | 14 out |
| Thursday, July 17 |
| » Defeated Dodgers (37-40), 4-3 | Ebbets Field (4-0) | 42-39 | Won 3 |
| » Starters: Hank Robinson vs Pat Ragan | Fourth | 13½ out |
| Friday, July 18 |
| » Defeated Dodgers (37-41), 12-1 | Ebbets Field (5-0) | 43-39 | Won 4 |
| » Starters: Babe Adams vs Cliff Curtis | Fourth | 13 out |
| Saturday, July 19 |
| » Defeated Dodgers (37-42), 6-3 | Ebbets Field (6-0) | 44-39 | Won 5 |
| » Starters: George McQuillan vs Nap Rucker | Third | 13 out |
| Former Pirate Jiggs Donahue dies in Columbus, OH at the age of 35. |
| Monday, July 21 |
| » Lost to Dodgers (38-42), 13-6 | Ebbets Field (6-1) | 44-40 | |
| » Starters: Claude Hendrix vs Pat Ragan | Third | 14 out |
| Tuesday, July 22 |
| » Lost to Giants (59-26), 8-3 | Polo Grounds V (1-3) | 44-41 | Lost 2 |
| » Starters: Howie Camnitz vs Al Demaree | Third | 16 out |
| » Lost to Giants (60-26), 2-1 | Polo Grounds V (1-4) | 44-42 | Lost 3 |
| » Starters: Babe Adams vs Christy Mathewson | Third | 16 out |
| Wednesday, July 23 |
| » Lost to Giants (61-26), 2-0 | Polo Grounds V (1-5) | 44-43 | Lost 4 |
| » Starters: George McQuillan vs Rube Marquard | Fourth | 17 out |
| Friday, July 25 |
| » Defeated Phillies (50-34), 12-2 | Forbes Field (18-16) | 45-43 | |
| » Starters: Tom Seaton vs Claude Hendrix | Fourth | 16½ out |
| Saturday, July 26 |
| » Lost to Phillies (51-34), 8-2 | Forbes Field (18-17) | 45-44 | |
| » Starters: Pete Alexander vs Babe Adams | Fourth | 16½ out |
| Monday, July 28 |
| » Lost to Phillies (52-34), 6-2 | Forbes Field (18-18) | 45-45 | Lost 2 |
| » Starters: Tom Seaton vs Howie Camnitz | Fourth | 18 out |
| Tuesday, July 29 |
| » Lost to Phillies (53-34), 7-4 | Forbes Field (18-19) | 45-46 | Lost 3 |
| » Starters: Erskine Mayer vs Claude Hendrix | Fourth | 19½ out |
| Wednesday, July 30 |
| » Defeated Dodgers (42-46), 5-3 | Forbes Field (19-19) | 46-46 | |
| » Starters: Pat Ragan vs George McQuillan | Fourth | 18½ out |
| Thursday, July 31 |
| » Defeated Dodgers (42-47), 3-2 | Forbes Field (20-19) | 47-46 | Won 2 |
| » Starters: Nap Rucker vs Hank Robinson | Fourth | 17½ out |
| Future Pirate Lee Handley is born in Clarion, IA. |
| Friday, August 1 |
| » Defeated Dodgers (42-48), 3-2 | Forbes Field (21-19) | 48-46 | Won 3 |
| » Starters: Frank Allen vs Babe Adams | Fourth | 17½ out |
| Saturday, August 2 |
| » Defeated Dodgers (42-49), 7-4 | Forbes Field (22-19) | 49-46 | Won 4 |
| » Starters: Mysterious Walker vs Claude Hendrix | Third | 17½ out |
| Monday, August 4 |
| » Lost to Giants (68-29), 2-1 | Forbes Field (22-20) | 49-47 | |
| » Starters: Al Demaree vs Howie Camnitz | Fourth | 18½ out |
| Tuesday, August 5 |
| » Defeated Giants (68-30), 5-1 | Forbes Field (23-20) | 50-47 | |
| » Starters: Rube Marquard vs Babe Adams | Fourth | 17½ out |
| Wednesday, August 6 |
| » Defeated Giants (68-31), 9-1 | Forbes Field (24-20) | 51-47 | Won 2 |
| » Starters: Christy Mathewson vs George McQuillan | Fourth | 16½ out |
| Thursday, August 7 |
| » Defeated Braves (41-57), 4-3 | Forbes Field (25-20) | 52-47 | Won 3 |
| » Starters: Otto Hess vs Hank Robinson | Fourth | 16½ out |
| Friday, August 8 |
| » Defeated Braves (41-58), 4-2 | Forbes Field (26-20) | 53-47 | Won 4 |
| » Starters: Hub Perdue vs Babe Adams | Third | 15½ out |
| Saturday, August 9 |
| » Lost to Braves (42-58), 3-2 | Forbes Field (26-21) | 53-48 | |
| » Starters: Lefty Tyler vs George McQuillan | Fourth | 16½ out |
| Monday, August 11 |
| » Lost to Reds (43-65), 3-1 | Forbes Field (26-22) | 53-49 | Lost 2 |
| » Starters: Red Ames vs Howie Camnitz | Fourth | 17 out |
| » Defeated Reds (43-66), 13-1 | Forbes Field (27-22) | 54-49 | |
| » Starters: George Suggs vs Babe Adams | Fourth | 17 out |
| Tuesday, August 12 |
| » Defeated Reds (43-67), 5-2 | Forbes Field (28-22) | 55-49 | Won 2 |
| » Starters: Mordecai Brown vs George McQuillan | Third | 17 out |
| Wednesday, August 13 |
| » Lost to Dodgers (45-56), 4-3 | Ebbets Field (6-2) | 55-50 | |
| » Starters: Hank Robinson vs Cliff Curtis | Third | 18 out |
| » Lost to Dodgers (46-56), 7-3 | Ebbets Field (6-3) | 55-51 | Lost 2 |
| » Starters: Marty O'Toole vs Earl Yingling | Third | 18 out |
| Thursday, August 14 |
| » Defeated Dodgers (46-57), 13-8 | Ebbets Field (7-3) | 56-51 | |
| » Starters: Wilbur Cooper vs Frank Allen | Fourth | 18½ out |
| Friday, August 15 |
| » Tied Dodgers, 3-3 | Ebbets Field (7-3) | 56-51 | |
| » Starters: Hank Robinson vs Pat Ragan | Fourth | 19 out |
| Saturday, August 16 |
| » Defeated Giants (75-33), 8-6 | Polo Grounds V (2-5) | 57-51 | Won 2 |
| » Starters: Babe Adams vs Christy Mathewson | Fourth | 18 out |
| Future Pirate Ernie Bonham is born in Ione, CA. |
| Monday, August 18 |
| » Lost to Giants (76-33), 5-3 | Polo Grounds V (2-6) | 57-52 | |
| » Starters: Howie Camnitz vs Al Demaree | Fourth | 20 out |
| » Lost to Giants (77-33), 5-1 | Polo Grounds V (2-7) | 57-53 | Lost 2 |
| » Starters: Hank Robinson vs Jeff Tesreau | Fourth | 20 out |
| Tuesday, August 19 |
| » Defeated Giants (77-34), 8-3 | Polo Grounds V (3-7) | 58-53 | |
| » Starters: Babe Adams vs Art Fromme | Fourth | 19 out |
| Wednesday, August 20 |
| » Defeated Giants (77-35), 4-1 | Polo Grounds V (4-7) | 59-53 | Won 2 |
| » Starters: George McQuillan vs Rube Marquard | Fourth | 18 out |
| Thursday, August 21 |
| » Defeated Phillies (65-42), 9-6 | Baker Bowl (6-3) | 60-53 | Won 3 |
| » Starters: Marty O'Toole vs Pete Alexander | Fourth | 18 out |
| Friday, August 22 |
| » Tied Phillies, 3-3 | Baker Bowl (6-3) | 60-53 | |
| » Starters: Babe Adams vs Erskine Mayer | Fourth | 18½ out |
| Saturday, August 23 |
| » Defeated Phillies (65-43), 10-5 | Baker Bowl (7-3) | 61-53 | Won 4 |
| » Starters: George McQuillan vs Pete Alexander | Third | 18 out |
| » Defeated Phillies (65-44), 13-8 | Baker Bowl (8-3) | 62-53 | Won 5 |
| » Starters: Wilbur Cooper vs Ad Brennan | Third | 18 out |
| Monday, August 25 |
| » Lost to Braves (50-64), 7-6 | South End Grounds III (3-6) | 62-54 | |
| » Starters: Marty O'Toole vs Walt Dickson | Fourth | 19 out |
| Tuesday, August 26 |
| » Defeated Braves (50-65), 3-0 | South End Grounds III (4-6) | 63-54 | |
| » Starters: Babe Adams vs Otto Hess | Fourth | 19 out |
| Wednesday, August 27 |
| » Major-league debuts: Rube Schauer (Giants) |
| Friday, August 29 |
| » Lost to Cubs (66-55), 6-1 | Forbes Field (28-23) | 63-55 | |
| » Starters: Larry Cheney vs George McQuillan | Fourth | 18 out |
| Saturday, August 30 |
| » Defeated Cubs (66-56), 3-1 | Forbes Field (29-23) | 64-55 | |
| » Starters: Charlie Smith vs Hank Robinson | Fourth | 17 out |
| Sunday, August 31 |
| » Lost to Cubs (67-56), 10-0 | West Side Grounds (1-8) | 64-56 | |
| » Starters: Marty O'Toole vs Bert Humphries | Fourth | 17½ out |
| Monday, September 1 |
| » Lost to Reds (53-76), 5-4 | Forbes Field (29-24) | 64-57 | Lost 2 |
| » Starters: Gene Packard vs Babe Adams | Fourth | 18½ out |
| » Defeated Reds (53-77), 5-1 | Forbes Field (30-24) | 65-57 | |
| » Starters: Cy Morgan vs George McQuillan | Fourth | 18½ out |
| Tuesday, September 2 |
| » Defeated Reds (53-78), 5-2 | Forbes Field (31-24) | 66-57 | Won 2 |
| » Starters: Red Ames vs Wild Bill Luhrsen | Fourth | 17½ out |
| Wednesday, September 3 |
| » Lost to Reds (54-78), 3-1 | Forbes Field (31-25) | 66-58 | |
| » Starters: Mordecai Brown vs Babe Adams | Fourth | 17½ out |
| Thursday, September 4 |
| » Lost to Cardinals (46-84), 4-2 | Forbes Field (31-26) | 66-59 | Lost 2 |
| » Starters: Slim Sallee vs Hank Robinson | Fourth | 17½ out |
| » Defeated Cardinals (46-85), 5-4 | Forbes Field (32-26) | 67-59 | |
| » Starters: Rube Geyer vs George McQuillan | Fourth | 17½ out |
| Friday, September 5 |
| » Defeated Cardinals (46-86), 8-3 | Forbes Field (33-26) | 68-59 | Won 2 |
| » Starters: Bob Harmon vs Wilbur Cooper | Fourth | 17 out |
| » Defeated Cardinals (46-87), 11-3 | Forbes Field (34-26) | 69-59 | Won 3 |
| » Starters: Pol Perritt vs Marty O'Toole | Fourth | 17 out |
| Saturday, September 6 |
| » Defeated Cardinals (46-88), 4-2 | Forbes Field (35-26) | 70-59 | Won 4 |
| » Starters: Bill Doak vs Wild Bill Luhrsen | Fourth | 16 out |
| Monday, September 8 |
| » Defeated Reds (55-80), 15-2 | Crosley Field (6-3) | 71-59 | Won 5 |
| » Starters: Babe Adams vs Red Ames | Fourth | 16½ out |
| » Lost to Reds (56-80), 2-1 | Crosley Field (6-4) | 71-60 | |
| » Starters: Claude Hendrix vs George Suggs | Fourth | 16½ out |
| Tuesday, September 9 |
| » Lost to Dodgers (56-73), 2-0 | Forbes Field (35-27) | 71-61 | Lost 2 |
| » Starters: Earl Yingling vs Hank Robinson | Fourth | 17 out |
| Future Pirate Hugh Mulcahy is born in Brighton, MA. |
| Wednesday, September 10 |
| » Lost to Giants (88-43), 5-2 | Forbes Field (35-28) | 71-62 | Lost 3 |
| » Starters: Jeff Tesreau vs George McQuillan | Fourth | 18 out |
| Thursday, September 11 |
| » Lost to Giants (89-43), 4-1 | Forbes Field (35-29) | 71-63 | Lost 4 |
| » Starters: Al Demaree vs Babe Adams | Fourth | 19 out |
| Saturday, September 13 |
| » Lost to Giants (90-43), 4-2 | Forbes Field (35-30) | 71-64 | Lost 5 |
| » Starters: Christy Mathewson vs Wild Bill Luhrsen | Fourth | 19 out |
| » Defeated Giants (90-44), 8-0 | Forbes Field (36-30) | 72-64 | |
| » Starters: Art Fromme vs Claude Hendrix | Fourth | 19 out |
| Monday, September 15 |
| » Lost to Braves (58-74), 6-5 | Forbes Field (36-31) | 72-65 | |
| » Starters: Jack Quinn vs George McQuillan | Fourth | 19 out |
| » Defeated Braves (58-75), 6-1 | Forbes Field (37-31) | 73-65 | |
| » Starters: Dick Rudolph vs Babe Adams | Fourth | 19 out |
| Friday, September 19 |
| » Defeated Phillies (81-51), 3-2 | Forbes Field (38-31) | 74-65 | Won 2 |
| » Starters: Erskine Mayer vs Claude Hendrix | Fourth | 18½ out |
| » Tied Phillies, 3-3 | Forbes Field (38-31) | 74-65 | |
| » Starters: Tom Seaton vs Joe Conzelman | Fourth | 18½ out |
| Saturday, September 20 |
| » Defeated Dodgers (59-78), 1-0 | Forbes Field (39-31) | 75-65 | Won 3 |
| » Starters: Frank Allen vs Hank Robinson | Fourth | 18½ out |
| » Lost to Dodgers (60-78), 4-3 | Forbes Field (39-32) | 75-66 | |
| » Starters: Elmer Brown vs Bernie Duffy | Fourth | 18½ out |
| Tuesday, September 23 |
| » Lost to Dodgers (61-78), 6-1 | Forbes Field (39-33) | 75-67 | Lost 2 |
| » Starters: Earl Yingling vs John Scheneberg | Fourth | 19½ out |
| » Lost to Dodgers (62-78), 1-0 | Forbes Field (39-34) | 75-68 | Lost 3 |
| » Starters: Nap Rucker vs Joe Conzelman | Fourth | 19½ out |
| » Major-league debuts: Al Mamaux (Pirates) |
| Wednesday, September 24 |
| » Defeated Cubs (83-63), 3-2 | Forbes Field (40-34) | 76-68 | |
| » Starters: Larry Cheney vs Claude Hendrix | Fourth | 19½ out |
| Thursday, September 25 |
| » Lost to Cubs (84-63), 7-1 | Forbes Field (40-35) | 76-69 | |
| » Starters: Bert Humphries vs George McQuillan | Fourth | 20½ out |
| Friday, September 26 |
| » Defeated Cubs (84-64), 6-1 | Forbes Field (41-35) | 77-69 | |
| » Starters: Charlie Smith vs Babe Adams | Fourth | 20½ out |
| » Major-league debuts: Milo Allison and Fritz Mollwitz (Cubs) |
| Saturday, September 27 |
| » Defeated Cardinals (49-99), 4-3 | Robison Field (7-3) | 78-69 | Won 2 |
| » Starters: Bernie Duffy vs Bill Hopper | Fourth | 19½ out |
| Saturday, October 4 |
| » Lost to Cubs (87-65), 3-1 | West Side Grounds (1-9) | 78-70 | |
| » Starters: Claude Hendrix vs George Pearce | Fourth | 21 out |
| Sunday, October 5 |
| » Lost to Cubs (88-65), 5-1 | West Side Grounds (1-10) | 78-71 | Lost 2 |
| » Starters: Marty O'Toole vs Zip Zabel | Fourth | 21½ out |
| Monday, October 13 |
| Future Pirate Xavier Rescigno is born in New York, NY. |
| Tuesday, October 14 |
| Future Pirate Hugh Casey is born in Atlanta, GA. |
| Monday, November 17 |
| Future Pirate Stu Martin is born in Rich Square, NC. |
Game information provided by Retrosheet (www.retrosheet.org) |