| Friday, April 9 |
| Future Pirate Claude Passeau is born in Waynesboro, MS. |
| Monday, April 12 |
| » Major-league debuts: Ray Demmitt (Yankees) |
| Tuesday, April 13 |
| » Major-league debuts: Dolly Gray and Bob Groom (Senators) George McConnell (Yankees) |
| Wednesday, April 14 |
| » Defeated Reds (0-1), 3-0 | Palace of the Fans (1-0) | 1-0 | |
| » Starters: Howie Camnitz vs Art Fromme | First | -- |
| » Major-league debuts: Rebel Oakes (Reds) Harry Camnitz (Pirates) |
| Thursday, April 15 |
| » Lost to Reds (1-1), 7-2 | Palace of the Fans (1-1) | 1-1 | |
| » Starters: Vic Willis vs Bob Ewing | Third | 1 out |
| » Major-league debuts: Ham Hyatt (Pirates) |
| Friday, April 16 |
| » Lost to Reds (2-1), 4-3 | Palace of the Fans (1-2) | 1-2 | Lost 2 |
| » Starters: Bill Powell vs Jean Dubuc | Fourth | 1½ out |
| » Major-league debuts: Dots Miller (Pirates) |
| Saturday, April 17 |
| » Lost to Reds (3-1), 8-5 | Palace of the Fans (1-3) | 1-3 | Lost 3 |
| » Starters: Nick Maddox vs Ed Karger | Sixth | 2½ out |
| Sunday, April 18 |
| » Defeated Cubs (2-3), 1-0 | West Side Grounds (1-0) | 2-3 | |
| » Starters: Howie Camnitz vs Mordecai Brown | Fourth | 2 out |
| Wednesday, April 21 |
| » Major-league debuts: Harry Gaspar and Pat Ragan (Reds) |
| Thursday, April 22 |
| » Lost to Reds (6-2), 7-4 | Exposition Park III (0-1) | 2-4 | |
| » Starters: Bob Ewing vs Chick Brandom | Seventh | 3 out |
| Friday, April 23 |
| » Defeated Reds (6-3), 2-1 | Exposition Park III (1-1) | 3-4 | |
| » Starters: Harry Gaspar vs Vic Willis | Seventh | 3 out |
| Saturday, April 24 |
| » Lost to Reds (7-3), 4-0 | Exposition Park III (1-2) | 3-5 | |
| » Starters: Art Fromme vs Nick Maddox | Seventh | 4 out |
| Sunday, April 25 |
| » Defeated Reds (7-4), 2-1 | Palace of the Fans (2-3) | 4-5 | |
| » Starters: Howie Camnitz vs Jean Dubuc | Sixth | 3 out |
| Monday, April 26 |
| » Defeated Cardinals (4-8), 4-3 | Robison Field (1-0) | 5-5 | Won 2 |
| » Starters: Lefty Leifield vs Slim Sallee | Fifth | 2 out |
| Tuesday, April 27 |
| » Defeated Cardinals (4-9), 7-6 | Robison Field (2-0) | 6-5 | Won 3 |
| » Starters: Vic Willis vs Johnny Lush | Fifth | 1½ out |
| Wednesday, April 28 |
| » Lost to Cardinals (5-9), 8-2 | Robison Field (2-1) | 6-6 | |
| » Starters: Nick Maddox vs Fred Beebe | Fifth | 2 out |
| Thursday, April 29 |
| » Major-league debuts: Bill Moriarty (Reds) |
| Sunday, May 2 |
| » Defeated Cubs (8-6), 5-2 | West Side Grounds (2-0) | 7-6 | |
| » Starters: Howie Camnitz vs Orval Overall | Third | 1½ out |
| » Defeated Cubs (8-7), 6-0 | West Side Grounds (3-0) | 8-6 | Won 2 |
| » Starters: Lefty Leifield vs Ed Reulbach | Third | 1½ out |
| Monday, May 3 |
| » Defeated Cubs (8-8), 9-2 | West Side Grounds (4-0) | 9-6 | Won 3 |
| » Starters: Vic Willis vs Andy Coakley | Second | 1½ out |
| Tuesday, May 4 |
| » Defeated Cubs (8-9), 1-0 | West Side Grounds (5-0) | 10-6 | Won 4 |
| » Starters: Babe Adams vs Mordecai Brown | Third | 1½ out |
| Wednesday, May 5 |
| » Defeated Cardinals (7-12), 6-5 | Exposition Park III (2-2) | 11-6 | Won 5 |
| » Starters: Johnny Lush vs Howie Camnitz | First | -- |
| Thursday, May 6 |
| » Defeated Cardinals (7-13), 6-5 | Exposition Park III (3-2) | 12-6 | Won 6 |
| » Starters: Fred Beebe vs Lefty Leifield | First | -- |
| Friday, May 7 |
| » Defeated Cardinals (7-14), 5-3 | Exposition Park III (4-2) | 13-6 | Won 7 |
| » Starters: Charlie Rhodes vs Vic Willis | First | -- |
| Saturday, May 8 |
| » Lost to Cardinals (8-14), 8-0 | Exposition Park III (4-3) | 13-7 | |
| » Starters: Johnny Lush vs Babe Adams | First | -- |
| Tuesday, May 11 |
| » Defeated Phillies (10-8), 7-1 | Baker Bowl (1-0) | 14-7 | |
| » Starters: Howie Camnitz vs Bill Foxen | First | -- |
| Wednesday, May 12 |
| » Lost to Phillies (11-8), 3-1 | Baker Bowl (1-1) | 14-8 | |
| » Starters: Lefty Leifield vs Lew Moren | First | -- |
| Thursday, May 13 |
| » Defeated Phillies (11-9), 6-4 | Baker Bowl (2-1) | 15-8 | |
| » Starters: Vic Willis vs Earl Moore | First | -- |
| Friday, May 14 |
| » Lost to Phillies (12-9), 2-0 | Baker Bowl (2-2) | 15-9 | |
| » Starters: Deacon Phillippe vs Tully Sparks | First | -- |
| Saturday, May 15 |
| » Defeated Dodgers (11-12), 6-5 | Washington Park III (1-0) | 16-9 | |
| » Starters: Howie Camnitz vs Harry McIntire | First | -- |
| Monday, May 17 |
| » Defeated Dodgers (11-13), 11-1 | Washington Park III (2-0) | 17-9 | Won 2 |
| » Starters: Lefty Leifield vs Jim Pastorius | First | -- |
| Tuesday, May 18 |
| » Defeated Dodgers (11-14), 8-5 | Washington Park III (3-0) | 18-9 | Won 3 |
| » Starters: Vic Willis vs Nap Rucker | First | -- |
| Wednesday, May 19 |
| » Lost to Dodgers (12-14), 2-0 | Washington Park III (3-1) | 18-10 | |
| » Starters: Deacon Phillippe vs George Bell | First | -- |
| Thursday, May 20 |
| » Lost to Giants (12-14), 2-1 | Polo Grounds IV (0-1) | 18-11 | Lost 2 |
| » Starters: Howie Camnitz vs Bugs Raymond | First | -- |
| Friday, May 21 |
| Future Pirate Mace Brown is born in North English, IA. |
| Monday, May 24 |
| » Defeated Braves (11-18), 6-2 | South End Grounds III (1-0) | 19-11 | |
| » Starters: Lefty Leifield vs George Ferguson | First | -- |
| Tuesday, May 25 |
| » Defeated Braves (11-19), 6-2 | South End Grounds III (2-0) | 20-11 | Won 2 |
| » Starters: Deacon Phillippe vs Tom McCarthy | First | -- |
| Wednesday, May 26 |
| » Defeated Braves (11-20), 9-4 | South End Grounds III (3-0) | 21-11 | Won 3 |
| » Starters: Howie Camnitz vs Al Mattern | First | -- |
| Thursday, May 27 |
| » Defeated Braves (11-21), 7-0 | South End Grounds III (4-0) | 22-11 | Won 4 |
| » Starters: Vic Willis vs Vive Lindaman | First | -- |
| Saturday, May 29 |
| » Lost to Cubs (23-13), 8-3 | Exposition Park III (4-4) | 22-12 | |
| » Starters: Mordecai Brown vs Lefty Leifield | Second | 1½ out |
| Sunday, May 30 |
| » Defeated Cubs (23-14), 5-4 | West Side Grounds (6-0) | 23-12 | |
| » Starters: Sam Leever vs Orval Overall | First | -- |
| » Defeated Cubs (23-15), 4-2 | West Side Grounds (7-0) | 24-12 | Won 2 |
| » Starters: Vic Willis vs Jack Pfiester | First | -- |
| Monday, May 31 |
| » Defeated Cardinals (17-22), 5-4 | Exposition Park III (5-4) | 25-12 | Won 3 |
| » Starters: Johnny Lush vs Nick Maddox | First | -- |
| » Defeated Cardinals (17-23), 4-2 | Exposition Park III (6-4) | 26-12 | Won 4 |
| » Starters: Charlie Rhodes vs Babe Adams | First | -- |
| Wednesday, June 2 |
| » Defeated Braves (12-25), 2-0 | Exposition Park III (7-4) | 27-12 | Won 5 |
| » Starters: George Ferguson vs Lefty Leifield | First | -- |
| Thursday, June 3 |
| » Defeated Braves (12-26), 9-8 | Exposition Park III (8-4) | 28-12 | Won 6 |
| » Starters: Tom McCarthy vs Howie Camnitz | First | -- |
| Saturday, June 5 |
| » Defeated Braves (12-27), 3-1 | Exposition Park III (9-4) | 29-12 | Won 7 |
| » Starters: Kirby White vs Vic Willis | First | -- |
| Monday, June 7 |
| » Defeated Phillies (17-21), 4-3 | Exposition Park III (10-4) | 30-12 | Won 8 |
| » Starters: Lew Moren vs Lefty Leifield | First | -- |
| Tuesday, June 8 |
| » Defeated Phillies (17-22), 4-3 | Exposition Park III (11-4) | 31-12 | Won 9 |
| » Starters: Buster Brown vs Deacon Phillippe | First | -- |
| Wednesday, June 9 |
| » Defeated Phillies (17-23), 6-0 | Exposition Park III (12-4) | 32-12 | Won 10 |
| » Starters: Tully Sparks vs Vic Willis | First | -- |
| Friday, June 11 |
| » Defeated Dodgers (17-26), 8-1 | Exposition Park III (13-4) | 33-12 | Won 11 |
| » Starters: George Bell vs Lefty Leifield | First | -- |
| Saturday, June 12 |
| » Defeated Dodgers (17-27), 10-1 | Exposition Park III (14-4) | 34-12 | Won 12 |
| » Starters: Kaiser Wilhelm vs Howie Camnitz | First | -- |
| Monday, June 14 |
| » Defeated Dodgers (17-28), 7-5 | Exposition Park III (15-4) | 35-12 | Won 13 |
| » Starters: Jim Pastorius vs Babe Adams | First | -- |
| Tuesday, June 15 |
| » Defeated Dodgers (17-29), 8-2 | Exposition Park III (16-4) | 36-12 | Won 14 |
| » Starters: Doc Scanlan vs Sam Frock | First | -- |
| Wednesday, June 16 |
| » Lost to Giants (24-20), 8-2 | Exposition Park III (16-5) | 36-13 | |
| » Starters: Christy Mathewson vs Lefty Leifield | First | -- |
| Friday, June 18 |
| » Defeated Giants (24-21), 3-2 | Exposition Park III (17-5) | 37-13 | |
| » Starters: Hooks Wiltse vs Howie Camnitz | First | -- |
| Saturday, June 19 |
| » Defeated Giants (24-22), 2-1 | Exposition Park III (18-5) | 38-13 | Won 2 |
| » Starters: Bugs Raymond vs Vic Willis | First | -- |
| Monday, June 21 |
| » Defeated Phillies (24-25), 5-3 | Exposition Park III (19-5) | 39-13 | Won 3 |
| » Starters: George McQuillan vs Lefty Leifield | First | -- |
| Wednesday, June 23 |
| » Defeated Cardinals (23-31), 3-1 | Robison Field (3-1) | 40-13 | Won 4 |
| » Starters: Vic Willis vs Fred Beebe | First | -- |
| » Major-league debuts: Bob Harmon (Cardinals) |
| Thursday, June 24 |
| » Defeated Cardinals (23-32), 3-2 | Robison Field (4-1) | 41-13 | Won 5 |
| » Starters: Nick Maddox vs Bob Harmon | First | -- |
| Saturday, June 26 |
| » Defeated Cardinals (23-33), 6-5 | Robison Field (5-1) | 42-13 | Won 6 |
| » Starters: Sam Frock vs Slim Sallee | First | -- |
| Sunday, June 27 |
| » Lost to Cardinals (24-33), 8-5 | Robison Field (5-2) | 42-14 | |
| » Starters: Lefty Leifield vs Johnny Lush | First | -- |
| » Defeated Cardinals (24-34), 7-1 | Robison Field (6-2) | 43-14 | |
| » Starters: Vic Willis vs Fred Beebe | First | -- |
| » Major-league debuts: Mike Simon (Pirates) |
| Monday, June 28 |
| » Defeated Reds (31-30), 3-2 | Palace of the Fans (3-3) | 44-14 | Won 2 |
| » Starters: Howie Camnitz vs Bob Ewing | First | -- |
| Tuesday, June 29 |
| » Defeated Cubs (37-22), 8-1 | Exposition Park III (20-5) | 45-14 | Won 3 |
| » Starters: Mordecai Brown vs Lefty Leifield | First | -- |
| Wednesday, June 30 |
| » Lost to Cubs (38-22), 3-2 | Forbes Field (0-1) | 45-15 | |
| » Starters: Ed Reulbach vs Vic Willis | First | -- |
| Friday, July 2 |
| » Lost to Cubs (39-22), 8-0 | Forbes Field (0-2) | 45-16 | Lost 2 |
| » Starters: Mordecai Brown vs Howie Camnitz | First | -- |
| » Defeated Cubs (39-23), 4-2 | Forbes Field (1-2) | 46-16 | |
| » Starters: Rip Hagerman vs Nick Maddox | First | -- |
| Saturday, July 3 |
| » Lost to Cubs (40-23), 6-0 | Forbes Field (1-3) | 46-17 | |
| » Starters: Ed Reulbach vs Lefty Leifield | First | -- |
| Sunday, July 4 |
| » Lost to Reds (35-31), 4-2 | Palace of the Fans (3-4) | 46-18 | Lost 2 |
| » Starters: Howie Camnitz vs Bob Spade | First | -- |
| Monday, July 5 |
| » Defeated Reds (35-32), 2-0 | Forbes Field (2-3) | 47-18 | |
| » Starters: Harry Gaspar vs Nick Maddox | First | -- |
| » Defeated Reds (35-33), 6-1 | Forbes Field (3-3) | 48-18 | Won 2 |
| » Starters: Art Fromme vs Vic Willis | First | -- |
| Tuesday, July 6 |
| » Defeated Reds (35-34), 5-0 | Forbes Field (4-3) | 49-18 | Won 3 |
| » Starters: Bob Ewing vs Deacon Phillippe | First | -- |
| Wednesday, July 7 |
| » Defeated Cubs (41-25), 6-2 | Forbes Field (5-3) | 50-18 | Won 4 |
| » Starters: Rip Hagerman vs Lefty Leifield | First | -- |
| Future Pirate Billy Herman is born in New Albany, IN. |
| Thursday, July 8 |
| » Lost to Giants (40-24), 5-1 | Polo Grounds IV (0-2) | 50-19 | |
| » Starters: Vic Willis vs Hooks Wiltse | First | -- |
| Friday, July 9 |
| » Defeated Giants (40-25), 9-5 | Polo Grounds IV (1-2) | 51-19 | |
| » Starters: Nick Maddox vs Red Ames | First | -- |
| » Defeated Giants (40-26), 4-2 | Polo Grounds IV (2-2) | 52-19 | Won 2 |
| » Starters: Deacon Phillippe vs Bugs Raymond | First | -- |
| Saturday, July 10 |
| » Defeated Giants (40-27), 8-2 | Polo Grounds IV (3-2) | 53-19 | Won 3 |
| » Starters: Lefty Leifield vs Hooks Wiltse | First | -- |
| Monday, July 12 |
| » Lost to Giants (41-27), 3-2 | Polo Grounds IV (3-3) | 53-20 | |
| » Starters: Vic Willis vs Christy Mathewson | First | -- |
| » Defeated Giants (41-28), 9-0 | Polo Grounds IV (4-3) | 54-20 | |
| » Starters: Howie Camnitz vs Rube Marquard | First | -- |
| Tuesday, July 13 |
| » Defeated Dodgers (26-48), 3-0 | Washington Park III (4-1) | 55-20 | Won 2 |
| » Starters: Nick Maddox vs George Hunter | First | -- |
| Wednesday, July 14 |
| » Defeated Dodgers (26-49), 7-2 | Washington Park III (5-1) | 56-20 | Won 3 |
| » Starters: Deacon Phillippe vs Nap Rucker | First | -- |
| Thursday, July 15 |
| » Lost to Dodgers (27-49), 5-1 | Washington Park III (5-2) | 56-21 | |
| » Starters: Lefty Leifield vs Harry McIntire | First | -- |
| Saturday, July 17 |
| » Defeated Phillies (33-43), 7-6 | Baker Bowl (3-2) | 57-21 | |
| » Starters: Vic Willis vs Earl Moore | First | -- |
| Monday, July 19 |
| » Defeated Phillies (33-44), 5-4 | Baker Bowl (4-2) | 58-21 | Won 2 |
| » Starters: Nick Maddox vs Lew Moren | First | -- |
| Tuesday, July 20 |
| » Lost to Phillies (34-44), 3-0 | Baker Bowl (4-3) | 58-22 | |
| » Starters: Deacon Phillippe vs Frank Corridon | First | -- |
| Wednesday, July 21 |
| » Lost to Phillies (35-44), 2-1 | Baker Bowl (4-4) | 58-23 | Lost 2 |
| » Starters: Vic Willis vs Earl Moore | First | -- |
| Thursday, July 22 |
| » Defeated Braves (24-57), 9-0 | South End Grounds III (5-0) | 59-23 | |
| » Starters: Nick Maddox vs Kirby White | First | -- |
| Saturday, July 24 |
| » Defeated Braves (24-58), 7-3 | South End Grounds III (6-0) | 60-23 | Won 2 |
| » Starters: Lefty Leifield vs George Ferguson | First | -- |
| » Defeated Braves (24-59), 6-3 | South End Grounds III (7-0) | 61-23 | Won 3 |
| » Starters: Deacon Phillippe vs Buster Brown | First | -- |
| Monday, July 26 |
| » Lost to Reds (44-43), 6-4 | Forbes Field (5-4) | 61-24 | |
| » Starters: Harry Gaspar vs Howie Camnitz | First | -- |
| Tuesday, July 27 |
| » Defeated Reds (44-44), 5-1 | Forbes Field (6-4) | 62-24 | |
| » Starters: Jack Rowan vs Vic Willis | First | -- |
| Wednesday, July 28 |
| » Defeated Reds (44-45), 6-3 | Forbes Field (7-4) | 63-24 | Won 2 |
| » Starters: Art Fromme vs Nick Maddox | First | -- |
| Thursday, July 29 |
| » Defeated Phillies (39-47), 4-3 | Forbes Field (8-4) | 64-24 | Won 3 |
| » Starters: Lew Moren vs Deacon Phillippe | First | -- |
| Friday, July 30 |
| » Defeated Giants (50-35), 3-1 | Forbes Field (9-4) | 65-24 | Won 4 |
| » Starters: Christy Mathewson vs Vic Willis | First | -- |
| Saturday, July 31 |
| » Lost to Giants (51-35), 4-0 | Forbes Field (9-5) | 65-25 | |
| » Starters: Hooks Wiltse vs Nick Maddox | First | -- |
| Tuesday, August 3 |
| » Defeated Dodgers (33-58), 9-1 | Forbes Field (10-5) | 66-25 | |
| » Starters: Jim Pastorius vs Howie Camnitz | First | -- |
| Wednesday, August 4 |
| » Lost to Dodgers (34-58), 1-0 | Forbes Field (10-6) | 66-26 | |
| » Starters: Harry McIntire vs Vic Willis | First | -- |
| Thursday, August 5 |
| » Lost to Dodgers (35-58), 4-1 | Forbes Field (10-7) | 66-27 | Lost 2 |
| » Starters: George Bell vs Nick Maddox | First | -- |
| Friday, August 6 |
| » Defeated Dodgers (35-59), 3-2 | Forbes Field (11-7) | 67-27 | |
| » Starters: Doc Scanlan vs Howie Camnitz | First | -- |
| Saturday, August 7 |
| » Defeated Braves (26-70), 6-4 | Forbes Field (12-7) | 68-27 | Won 2 |
| » Starters: Al Mattern vs Lefty Leifield | First | -- |
| » Defeated Braves (26-71), 3-1 | Forbes Field (13-7) | 69-27 | Won 3 |
| » Starters: Forrest More vs Vic Willis | First | -- |
| Monday, August 9 |
| » Defeated Braves (26-72), 10-1 | Forbes Field (14-7) | 70-27 | Won 4 |
| » Starters: George Ferguson vs Nick Maddox | First | -- |
| Tuesday, August 10 |
| » Defeated Braves (26-73), 2-1 | Forbes Field (15-7) | 71-27 | Won 5 |
| » Starters: Buster Brown vs Chick Brandom | First | -- |
| Wednesday, August 11 |
| » Defeated Braves (26-74), 1-0 | Forbes Field (16-7) | 72-27 | Won 6 |
| » Starters: Lew Richie vs Howie Camnitz | First | -- |
| Thursday, August 12 |
| » Defeated Phillies (45-54), 13-3 | Forbes Field (17-7) | 73-27 | Won 7 |
| » Starters: Lew Moren vs Vic Willis | First | -- |
| » Lost to Phillies (46-54), 5-4 | Forbes Field (17-8) | 73-28 | |
| » Starters: Frank Corridon vs Nick Maddox | First | -- |
| Friday, August 13 |
| » Defeated Phillies (46-55), 2-1 | Forbes Field (18-8) | 74-28 | |
| » Starters: George McQuillan vs Sam Leever | First | -- |
| Saturday, August 14 |
| » Lost to Phillies (47-55), 2-1 | Forbes Field (18-9) | 74-29 | |
| » Starters: Earl Moore vs Howie Camnitz | First | -- |
| Sunday, August 15 |
| » Major-league debuts: Cozy Dolan (Reds) Gus Getz (Braves) |
| Monday, August 16 |
| » Tied Giants, 2-2 | Forbes Field (18-9) | 74-29 | |
| » Starters: Christy Mathewson vs Vic Willis | First | -- |
| Tuesday, August 17 |
| » Defeated Cardinals (43-58), 11-8 | Forbes Field (19-9) | 75-29 | |
| » Starters: Slim Sallee vs Nick Maddox | First | -- |
| Wednesday, August 18 |
| » Defeated Cardinals (43-59), 6-3 | Forbes Field (20-9) | 76-29 | Won 2 |
| » Starters: Les Backman vs Deacon Phillippe | First | -- |
| » Defeated Cardinals (43-60), 2-1 | Forbes Field (21-9) | 77-29 | Won 3 |
| » Starters: John Raleigh vs Howie Camnitz | First | -- |
| Thursday, August 19 |
| » Defeated Cardinals (43-61), 8-3 | Forbes Field (22-9) | 78-29 | Won 4 |
| » Starters: Johnny Lush vs Vic Willis | First | -- |
| Friday, August 20 |
| » Defeated Phillies (48-59), 4-3 | Baker Bowl (5-4) | 79-29 | Won 5 |
| » Starters: Sam Leever vs George McQuillan | First | -- |
| Saturday, August 21 |
| » Lost to Phillies (49-59), 6-5 | Baker Bowl (5-5) | 79-30 | |
| » Starters: Howie Camnitz vs Frank Corridon | First | -- |
| Monday, August 23 |
| » Defeated Phillies (49-60), 2-0 | Baker Bowl (6-5) | 80-30 | |
| » Starters: Lefty Leifield vs Earl Moore | First | -- |
| Tuesday, August 24 |
| » Lost to Giants (67-40), 4-3 | Polo Grounds IV (4-4) | 80-31 | |
| » Starters: Vic Willis vs Hooks Wiltse | First | -- |
| » Defeated Giants (67-41), 11-3 | Polo Grounds IV (5-4) | 81-31 | |
| » Starters: Howie Camnitz vs Bugs Raymond | First | -- |
| Wednesday, August 25 |
| » Lost to Giants (68-41), 3-2 | Polo Grounds IV (5-5) | 81-32 | |
| » Starters: Nick Maddox vs Christy Mathewson | First | -- |
| Thursday, August 26 |
| » Defeated Giants (68-42), 6-3 | Polo Grounds IV (6-5) | 82-32 | |
| » Starters: Lefty Leifield vs Red Ames | First | -- |
| Friday, August 27 |
| » Defeated Dodgers (41-72), 5-0 | Washington Park III (6-2) | 83-32 | Won 2 |
| » Starters: Vic Willis vs Kaiser Wilhelm | First | -- |
| Saturday, August 28 |
| » Defeated Dodgers (41-73), 7-3 | Washington Park III (7-2) | 84-32 | Won 3 |
| » Starters: Howie Camnitz vs George Bell | First | -- |
| » Defeated Dodgers (41-74), 3-0 | Washington Park III (8-2) | 85-32 | Won 4 |
| » Starters: Babe Adams vs Nap Rucker | First | -- |
| Monday, August 30 |
| » Defeated Dodgers (41-75), 2-1 | Washington Park III (9-2) | 86-32 | Won 5 |
| » Starters: Lefty Leifield vs Harry McIntire | First | -- |
| » Major-league debuts: Hy Myers (Dodgers) |
| Tuesday, August 31 |
| » Defeated Braves (32-86), 7-2 | South End Grounds III (8-0) | 87-32 | Won 6 |
| » Starters: Vic Willis vs Forrest More | First | -- |
| Thursday, September 2 |
| » Lost to Braves (33-86), 1-0 | South End Grounds III (8-1) | 87-33 | |
| » Starters: Babe Adams vs Cliff Curtis | First | -- |
| » Defeated Braves (33-87), 5-3 | South End Grounds III (9-1) | 88-33 | |
| » Starters: Deacon Phillippe vs Al Mattern | First | -- |
| Saturday, September 4 |
| » Defeated Cardinals (46-75), 4-0 | Forbes Field (23-9) | 89-33 | Won 2 |
| » Starters: Johnny Lush vs Nick Maddox | First | -- |
| Sunday, September 5 |
| » Defeated Cubs (82-40), 5-1 | West Side Grounds (8-0) | 90-33 | Won 3 |
| » Starters: Howie Camnitz vs Mordecai Brown | First | -- |
| Monday, September 6 |
| » Lost to Cubs (83-40), 3-1 | Forbes Field (23-10) | 90-34 | |
| » Starters: Ed Reulbach vs Babe Adams | First | -- |
| » Lost to Cubs (84-40), 6-3 | Forbes Field (23-11) | 90-35 | Lost 2 |
| » Starters: Orval Overall vs Vic Willis | First | -- |
| Tuesday, September 7 |
| » Defeated Cubs (84-41), 6-2 | Forbes Field (24-11) | 91-35 | |
| » Starters: Ed Reulbach vs Nick Maddox | First | -- |
| Wednesday, September 8 |
| » Lost to Cubs (85-41), 4-2 | Forbes Field (24-12) | 91-36 | |
| » Starters: Mordecai Brown vs Howie Camnitz | First | -- |
| Thursday, September 9 |
| » Defeated Reds (65-62), 3-1 | Forbes Field (25-12) | 92-36 | |
| » Starters: Art Fromme vs Babe Adams | First | -- |
| Friday, September 10 |
| » Defeated Reds (65-63), 4-3 | Forbes Field (26-12) | 93-36 | Won 2 |
| » Starters: Harry Gaspar vs Vic Willis | First | -- |
| Saturday, September 11 |
| » Defeated Reds (65-64), 2-1 | Forbes Field (27-12) | 94-36 | Won 3 |
| » Starters: Bob Spade vs Nick Maddox | First | -- |
| Sunday, September 12 |
| » Defeated Cardinals (47-82), 4-3 | Robison Field (7-2) | 95-36 | Won 4 |
| » Starters: Howie Camnitz vs Johnny Lush | First | -- |
| Monday, September 13 |
| » Defeated Cardinals (47-83), 4-1 | Robison Field (8-2) | 96-36 | Won 5 |
| » Starters: Sam Leever vs John Raleigh | First | -- |
| Wednesday, September 15 |
| » Defeated Reds (66-67), 7-2 | Palace of the Fans (4-4) | 97-36 | Won 6 |
| » Starters: Nick Maddox vs Bob Spade | First | -- |
| Thursday, September 16 |
| » Defeated Reds (66-68), 9-3 | Palace of the Fans (5-4) | 98-36 | Won 7 |
| » Starters: Babe Adams vs Bob Ewing | First | -- |
| Friday, September 17 |
| » Defeated Dodgers (47-86), 6-3 | Forbes Field (28-12) | 99-36 | Won 8 |
| » Starters: Harry McIntire vs Lefty Leifield | First | -- |
| Saturday, September 18 |
| » Defeated Dodgers (47-87), 6-0 | Forbes Field (29-12) | 100-36 | Won 9 |
| » Starters: Nap Rucker vs Vic Willis | First | -- |
| Sunday, September 19 |
| » Major-league debuts: Chick Evans (Braves) |
| Monday, September 20 |
| » Defeated Dodgers (47-88), 12-3 | Forbes Field (30-12) | 101-36 | Won 10 |
| » Starters: Elmer Knetzer vs Nick Maddox | First | -- |
| Tuesday, September 21 |
| » Defeated Braves (39-97), 2-0 | Forbes Field (31-12) | 102-36 | Won 11 |
| » Starters: Cliff Curtis vs Babe Adams | First | -- |
| » Defeated Braves (39-98), 5-0 | Forbes Field (32-12) | 103-36 | Won 12 |
| » Starters: Al Mattern vs Howie Camnitz | First | -- |
| Wednesday, September 22 |
| » Defeated Braves (39-99), 12-7 | Forbes Field (33-12) | 104-36 | Won 13 |
| » Starters: Buster Brown vs Lefty Leifield | First | -- |
| Friday, September 24 |
| » Defeated Phillies (69-72), 2-1 | Forbes Field (34-12) | 105-36 | Won 14 |
| » Starters: Earl Moore vs Nick Maddox | First | -- |
| Saturday, September 25 |
| » Defeated Phillies (69-73), 5-0 | Forbes Field (35-12) | 106-36 | Won 15 |
| » Starters: Tully Sparks vs Howie Camnitz | First | -- |
| Monday, September 27 |
| » Defeated Giants (85-56), 6-1 | Forbes Field (36-12) | 107-36 | Won 16 |
| » Starters: Doc Crandall vs Babe Adams | First | -- |
| » Lost to Giants (86-56), 8-7 | Forbes Field (36-13) | 107-37 | |
| » Starters: Hooks Wiltse vs Lefty Leifield | First | -- |
| Tuesday, September 28 |
| » Lost to Giants (87-56), 13-9 | Forbes Field (36-14) | 107-38 | Lost 2 |
| » Starters: Red Ames vs Vic Willis | First | -- |
| » Major-league debuts: Gene Moore (Pirates) |
| Wednesday, September 29 |
| » Lost to Giants (88-56), 6-1 | Forbes Field (36-15) | 107-39 | Lost 3 |
| » Starters: Louis Drucke vs Nick Maddox | First | -- |
| Thursday, September 30 |
| » Lost to Giants (89-56), 6-2 | Forbes Field (36-16) | 107-40 | Lost 4 |
| » Starters: Al Klawitter vs Vic Willis | First | -- |
| » Defeated Giants (89-57), 9-1 | Forbes Field (37-16) | 108-40 | |
| » Starters: George Daly vs Sam Frock | First | -- |
| Saturday, October 2 |
| » Lost to Cubs (100-47), 3-1 | West Side Grounds (8-1) | 108-41 | |
| » Starters: Nick Maddox vs Ed Reulbach | First | -- |
| Sunday, October 3 |
| » Defeated Cubs (100-48), 4-1 | West Side Grounds (9-1) | 109-41 | |
| » Starters: Lefty Leifield vs Orval Overall | First | -- |
| Monday, October 4 |
| » Lost to Cubs (101-48), 8-2 | West Side Grounds (9-2) | 109-42 | |
| » Starters: Sam Frock vs Mordecai Brown | First | -- |
| Tuesday, October 5 |
| » Defeated Reds (77-76), 5-4 | Palace of the Fans (6-4) | 110-42 | |
| » Starters: Babe Adams vs Jack Rowan | First | -- |
| » Defeated Reds (77-77), 7-4 | Palace of the Fans (7-4) | 111-42 | Won 2 |
| » Starters: Nick Maddox vs Jack Bushelman | First | -- |
| » Major-league debuts: Ezra Midkiff (Reds) |
| Wednesday, October 6 |
| » Major-league debuts: King Cole (Cubs) |
| Friday, November 5 |
| Future Pirate Harry Gumbert is born in Elizabeth, PA. |
| Wednesday, December 22 |
| Former Pirate Jimmy Sebring dies in Williamsport, PA at the age of 28. |
Game information provided by Retrosheet (www.retrosheet.org) |
