| Wednesday, January 3 |
| Future Pirate Gus Suhr is born in San Francisco, CA. |
| Saturday, March 10 |
| Future Pirate Art Herring is born in Altus, OK. |
| Friday, March 16 |
| Future Pirate Lloyd Waner is born in Harrah, OK. |
| Thursday, April 12 |
| » Defeated Cardinals (0-1), 2-1 | Robison Field (1-0) | 1-0 | |
| » Starters: Vic Willis vs Jack Taylor | First | -- |
| » Major-league debuts: Pug Bennett (Cardinals) |
| Sunday, April 15 |
| » Defeated Cardinals (0-2), 5-3 | Robison Field (2-0) | 2-0 | Won 2 |
| » Starters: Ed Karger vs Art Hoelskoetter | Second | 1 out |
| » Major-league debuts: Ed Karger (Pirates) |
| Tuesday, April 17 |
| » Defeated Reds (2-4), 3-2 | Exposition Park III (1-0) | 3-0 | Won 3 |
| » Starters: Jake Weimer vs Deacon Phillippe | First | -- |
| Wednesday, April 18 |
| » Lost to Reds (3-4), 7-4 | Exposition Park III (1-1) | 3-1 | |
| » Starters: Orval Overall vs Sam Leever | Second | ½ out |
| » Major-league debuts: Carl Druhot (Reds) |
| Thursday, April 19 |
| » Lost to Reds (4-4), 8-2 | Exposition Park III (1-2) | 3-2 | Lost 2 |
| » Starters: Leo Hafford vs Vic Willis | Second | ½ out |
| Friday, April 20 |
| » Defeated Reds (4-5), 6-4 | Exposition Park III (2-2) | 4-2 | |
| » Starters: Jack Harper vs Mike Lynch | Second | ½ out |
| Saturday, April 21 |
| » Defeated Reds (4-6), 5-3 | Exposition Park III (3-2) | 5-2 | Won 2 |
| » Starters: Jake Weimer vs Charlie Case | First | -- |
| Sunday, April 22 |
| » Lost to Cubs (6-4), 3-1 | West Side Grounds (0-1) | 5-3 | |
| » Starters: Deacon Phillippe vs Bob Wicker | Second | ½ out |
| Monday, April 23 |
| Future Pirate Ray Starr is born in Nowata, OK. |
| Tuesday, April 24 |
| » Defeated Cubs (6-5), 6-3 | West Side Grounds (1-1) | 6-3 | |
| » Starters: Lefty Leifield vs Mordecai Brown | Second | ½ out |
| Wednesday, April 25 |
| » Defeated Cubs (6-6), 4-3 | West Side Grounds (2-1) | 7-3 | Won 2 |
| » Starters: Vic Willis vs Jack Pfiester | Second | ½ out |
| Friday, April 27 |
| » Lost to Cardinals (6-5), 8-2 | Exposition Park III (3-3) | 7-4 | |
| » Starters: Jack Taylor vs Ed Karger | Second | 2 out |
| Saturday, April 28 |
| » Defeated Cardinals (6-6), 10-0 | Exposition Park III (4-3) | 8-4 | |
| » Starters: Art Hoelskoetter vs Lefty Leifield | Second | 2 out |
| Sunday, April 29 |
| » Lost to Reds (6-12), 11-6 | Palace of the Fans (0-1) | 8-5 | |
| » Starters: Charlie Case vs Orval Overall | Third | 2½ out |
| Monday, April 30 |
| » Defeated Reds (6-13), 3-0 | Palace of the Fans (1-1) | 9-5 | |
| » Starters: Deacon Phillippe vs Charlie Chech | Second | 2½ out |
| Tuesday, May 1 |
| » Lost to Reds (7-13), 8-3 | Palace of the Fans (1-2) | 9-6 | |
| » Starters: Mike Lynch vs Carl Druhot | Third | 3½ out |
| Wednesday, May 2 |
| » Defeated Reds (7-14), 4-1 | Palace of the Fans (2-2) | 10-6 | |
| » Starters: Vic Willis vs Gus Dorner | Third | 3½ out |
| Friday, May 4 |
| » Lost to Cubs (13-6), 7-2 | Exposition Park III (4-4) | 10-7 | |
| » Starters: Mordecai Brown vs Lefty Leifield | Third | 4 out |
| Saturday, May 5 |
| » Lost to Cubs (14-6), 8-5 | Exposition Park III (4-5) | 10-8 | Lost 2 |
| » Starters: Fred Beebe vs Deacon Phillippe | Third | 4 out |
| Sunday, May 6 |
| » Lost to Cubs (15-6), 5-1 | West Side Grounds (2-2) | 10-9 | Lost 3 |
| » Starters: Vic Willis vs Bob Wicker | Fourth | 4½ out |
| Monday, May 7 |
| » Lost to Cubs (16-6), 3-2 | Exposition Park III (4-6) | 10-10 | Lost 4 |
| » Starters: Carl Lundgren vs Homer Hillebrand | Fourth | 5 out |
| Tuesday, May 8 |
| » Defeated Cubs (16-7), 3-2 | Exposition Park III (5-6) | 11-10 | |
| » Starters: Mordecai Brown vs Sam Leever | Fourth | 4½ out |
| Friday, May 11 |
| » Lost to Phillies (15-10), 2-0 | Exposition Park III (5-7) | 11-11 | |
| » Starters: Tully Sparks vs Deacon Phillippe | Fourth | 5 out |
| Saturday, May 12 |
| » Lost to Phillies (16-10), 6-2 | Exposition Park III (5-8) | 11-12 | Lost 2 |
| » Starters: John McCloskey vs Vic Willis | Fourth | 6 out |
| Monday, May 14 |
| » Defeated Phillies (16-11), 7-6 | Exposition Park III (6-8) | 12-12 | |
| » Starters: Johnny Lush vs Homer Hillebrand | Fourth | 5½ out |
| Tuesday, May 15 |
| » Defeated Phillies (16-12), 5-4 | Exposition Park III (7-8) | 13-12 | Won 2 |
| » Starters: Tully Sparks vs Deacon Phillippe | Fourth | 5½ out |
| Wednesday, May 16 |
| » Defeated Giants (19-8), 11-0 | Exposition Park III (8-8) | 14-12 | Won 3 |
| » Starters: Red Ames vs Vic Willis | Fourth | 5½ out |
| Thursday, May 17 |
| » Defeated Giants (19-9), 2-0 | Exposition Park III (9-8) | 15-12 | Won 4 |
| » Starters: Joe McGinnity vs Sam Leever | Third | 5½ out |
| Friday, May 18 |
| » Defeated Giants (19-10), 7-6 | Exposition Park III (10-8) | 16-12 | Won 5 |
| » Starters: Christy Mathewson vs Mike Lynch | Third | 5½ out |
| Saturday, May 19 |
| » Lost to Giants (20-10), 5-1 | Exposition Park III (10-9) | 16-13 | |
| » Starters: Dummy Taylor vs Deacon Phillippe | Third | 5½ out |
| Monday, May 21 |
| » Defeated Braves (12-20), 8-0 | Exposition Park III (11-9) | 17-13 | |
| » Starters: Irv Young vs Vic Willis | Third | 5 out |
| Tuesday, May 22 |
| » Defeated Braves (12-21), 1-0 | Exposition Park III (12-9) | 18-13 | Won 2 |
| » Starters: Gus Dorner vs Sam Leever | Third | 4 out |
| Wednesday, May 23 |
| » Defeated Braves (12-22), 5-0 | Exposition Park III (13-9) | 19-13 | Won 3 |
| » Starters: Vive Lindaman vs Lefty Leifield | Third | 3½ out |
| Thursday, May 24 |
| » Defeated Braves (12-23), 6-5 | Exposition Park III (14-9) | 20-13 | Won 4 |
| » Starters: Big Jeff Pfeffer vs Deacon Phillippe | Third | 2½ out |
| Friday, May 25 |
| » Defeated Dodgers (10-26), 2-0 | Exposition Park III (15-9) | 21-13 | Won 5 |
| » Starters: Mal Eason vs Vic Willis | Third | 2½ out |
| Saturday, May 26 |
| » Lost to Dodgers (11-26), 4-2 | Exposition Park III (15-10) | 21-14 | |
| » Starters: Elmer Stricklett vs Sam Leever | Third | 3½ out |
| Tuesday, May 29 |
| » Lost to Dodgers (12-26), 8-7 | Exposition Park III (15-11) | 21-15 | Lost 2 |
| » Starters: Jim Pastorius vs Lefty Leifield | Third | 4½ out |
| Wednesday, May 30 |
| » Defeated Reds (17-25), 7-5 | Exposition Park III (16-11) | 22-15 | |
| » Starters: Orval Overall vs Vic Willis | Third | 2½ out |
| » Defeated Reds (17-26), 9-1 | Exposition Park III (17-11) | 23-15 | Won 2 |
| » Starters: Jake Weimer vs Deacon Phillippe | Third | 2½ out |
| Thursday, May 31 |
| » Defeated Cardinals (20-22), 3-0 | Exposition Park III (18-11) | 24-15 | Won 3 |
| » Starters: Chappie McFarland vs Sam Leever | Third | 2½ out |
| Friday, June 1 |
| » Defeated Cardinals (20-23), 5-4 | Exposition Park III (19-11) | 25-15 | Won 4 |
| » Starters: Gus Thompson vs Lefty Leifield | Third | 2 out |
| Saturday, June 2 |
| » Defeated Cardinals (20-24), 10-2 | Exposition Park III (20-11) | 26-15 | Won 5 |
| » Starters: Jack Taylor vs Vic Willis | Third | 2 out |
| Sunday, June 3 |
| » Lost to Cubs (31-15), 4-1 | West Side Grounds (2-3) | 26-16 | |
| » Starters: Deacon Phillippe vs Jack Pfiester | Third | 3 out |
| Tuesday, June 5 |
| » Defeated Braves (12-33), 9-3 | South End Grounds III (1-0) | 27-16 | |
| » Starters: Sam Leever vs Gus Dorner | Third | 3 out |
| Wednesday, June 6 |
| » Defeated Braves (12-34), 8-0 | South End Grounds III (2-0) | 28-16 | Won 2 |
| » Starters: Lefty Leifield vs Irv Young | Second | 3 out |
| Friday, June 8 |
| » Defeated Braves (12-35), 10-4 | South End Grounds III (3-0) | 29-16 | Won 3 |
| » Starters: Deacon Phillippe vs Big Jeff Pfeffer | Second | 2½ out |
| Saturday, June 9 |
| » Defeated Phillies (28-24), 7-1 | Baker Bowl (1-0) | 30-16 | Won 4 |
| » Starters: Vic Willis vs Togie Pittinger | Second | 2½ out |
| Monday, June 11 |
| » Defeated Phillies (28-25), 5-3 | Baker Bowl (2-0) | 31-16 | Won 5 |
| » Starters: Sam Leever vs Tully Sparks | Second | 2½ out |
| Tuesday, June 12 |
| » Lost to Phillies (29-25), 2-0 | Baker Bowl (2-1) | 31-17 | |
| » Starters: Lefty Leifield vs Lew Richie | Second | 2½ out |
| Wednesday, June 13 |
| » Defeated Phillies (29-26), 3-0 | Baker Bowl (3-1) | 32-17 | |
| » Starters: Chappie McFarland vs Bill Duggleby | Second | 2½ out |
| Thursday, June 14 |
| » Defeated Dodgers (21-32), 6-1 | Washington Park III (1-0) | 33-17 | Won 2 |
| » Starters: Vic Willis vs Elmer Stricklett | Second | 2½ out |
| Friday, June 15 |
| » Defeated Dodgers (21-33), 4-1 | Washington Park III (2-0) | 34-17 | Won 3 |
| » Starters: Sam Leever vs Jim Pastorius | Second | 2½ out |
| Saturday, June 16 |
| » Major-league debuts: Red Murray (Cardinals) |
| Tuesday, June 19 |
| » Major-league debuts: Al Burch (Cardinals) |
| Wednesday, June 20 |
| » Defeated Giants (36-20), 15-2 | Polo Grounds IV (1-0) | 35-17 | Won 4 |
| » Starters: Vic Willis vs Hooks Wiltse | Second | 3½ out |
| Thursday, June 21 |
| » Lost to Giants (37-20), 5-4 | Polo Grounds IV (1-1) | 35-18 | |
| » Starters: Sam Leever vs Joe McGinnity | Second | 3½ out |
| Friday, June 22 |
| » Defeated Cardinals (24-37), 2-1 | Exposition Park III (21-11) | 36-18 | |
| » Starters: Buster Brown vs Lefty Leifield | Second | 3 out |
| Saturday, June 23 |
| » Defeated Cardinals (24-38), 2-0 | Exposition Park III (22-11) | 37-18 | Won 2 |
| » Starters: Jack Taylor vs Deacon Phillippe | Second | 3 out |
| Sunday, June 24 |
| » Lost to Reds (25-37), 4-3 | Palace of the Fans (2-3) | 37-19 | |
| » Starters: Chappie McFarland vs Jake Weimer | Third | 3 out |
| Monday, June 25 |
| » Defeated Reds (25-38), 4-2 | Palace of the Fans (3-3) | 38-19 | |
| » Starters: Vic Willis vs Bob Ewing | Third | 3 out |
| Tuesday, June 26 |
| » Defeated Reds (25-39), 6-4 | Palace of the Fans (4-3) | 39-19 | Won 2 |
| » Starters: Sam Leever vs Bob Wicker | Second | 3 out |
| Wednesday, June 27 |
| » Defeated Reds (25-40), 3-1 | Palace of the Fans (5-3) | 40-19 | Won 3 |
| » Starters: Deacon Phillippe vs Chick Fraser | Second | 2½ out |
| Thursday, June 28 |
| » Lost to Cardinals (25-41), 3-1 | Robison Field (2-1) | 40-20 | |
| » Starters: Lefty Leifield vs Jack Taylor | Third | 2½ out |
| Friday, June 29 |
| » Defeated Cardinals (25-42), 5-2 | Robison Field (3-1) | 41-20 | |
| » Starters: Vic Willis vs Carl Druhot | Second | 2 out |
| Saturday, June 30 |
| » Defeated Cardinals (25-43), 6-3 | Robison Field (4-1) | 42-20 | Won 2 |
| » Starters: Mike Lynch vs Buster Brown | Second | 2 out |
| Sunday, July 1 |
| » Defeated Cardinals (25-44), 6-1 | Robison Field (5-1) | 43-20 | Won 3 |
| » Starters: Sam Leever vs Jack Taylor | Second | 2½ out |
| » Lost to Cardinals (26-44), 3-1 | Robison Field (5-2) | 43-21 | |
| » Starters: Deacon Phillippe vs Wish Egan | Second | 2½ out |
| Monday, July 2 |
| » Lost to Cardinals (27-44), 8-4 | Robison Field (5-3) | 43-22 | Lost 2 |
| » Starters: Chappie McFarland vs Buster Brown | Second | 2½ out |
| Wednesday, July 4 |
| » Lost to Cubs (48-21), 1-0 | Exposition Park III (22-12) | 43-23 | Lost 3 |
| » Starters: Mordecai Brown vs Lefty Leifield | Second | 4½ out |
| » Lost to Cubs (49-21), 1-0 | Exposition Park III (22-13) | 43-24 | Lost 4 |
| » Starters: Carl Lundgren vs Vic Willis | Second | 4½ out |
| Thursday, July 5 |
| » Lost to Cubs (50-21), 6-3 | Exposition Park III (22-14) | 43-25 | Lost 5 |
| » Starters: Ed Reulbach vs Sam Leever | Third | 5½ out |
| Friday, July 6 |
| » Defeated Cubs (50-22), 3-2 | Exposition Park III (23-14) | 44-25 | |
| » Starters: Jack Taylor vs Deacon Phillippe | Second | 4½ out |
| Saturday, July 7 |
| » Lost to Cubs (51-22), 5-0 | Exposition Park III (23-15) | 44-26 | |
| » Starters: Mordecai Brown vs Lefty Leifield | Third | 5½ out |
| Sunday, July 8 |
| » Defeated Cubs (51-23), 3-1 | West Side Grounds (3-3) | 45-26 | |
| » Starters: Vic Willis vs Carl Lundgren | Third | 4½ out |
| Monday, July 9 |
| » Defeated Dodgers (26-44), 9-0 | Exposition Park III (24-15) | 46-26 | Won 2 |
| » Starters: Jim Pastorius vs Sam Leever | Third | 4½ out |
| Tuesday, July 10 |
| » Lost to Dodgers (27-44), 7-6 | Exposition Park III (24-16) | 46-27 | |
| » Starters: Doc Scanlan vs Irish McIlveen | Third | 4½ out |
| Wednesday, July 11 |
| » Lost to Dodgers (28-44), 3-1 | Exposition Park III (24-17) | 46-28 | Lost 2 |
| » Starters: Harry McIntire vs Lefty Leifield | Third | 5 out |
| » Defeated Dodgers (28-45), 5-1 | Exposition Park III (25-17) | 47-28 | |
| » Starters: Mal Eason vs Vic Willis | Third | 5 out |
| Thursday, July 12 |
| » Defeated Dodgers (28-46), 9-6 | Exposition Park III (26-17) | 48-28 | Won 2 |
| » Starters: Elmer Stricklett vs Chappie McFarland | Third | 5½ out |
| Friday, July 13 |
| » Defeated Braves (27-52), 3-2 | Exposition Park III (27-17) | 49-28 | Won 3 |
| » Starters: Big Jeff Pfeffer vs Sam Leever | Second | 5½ out |
| Saturday, July 14 |
| » Defeated Braves (27-53), 2-0 | Exposition Park III (28-17) | 50-28 | Won 4 |
| » Starters: Gus Dorner vs Lefty Leifield | Third | 5 out |
| Tuesday, July 17 |
| » Lost to Phillies (41-41), 4-1 | Exposition Park III (28-18) | 50-29 | |
| » Starters: Tully Sparks vs Vic Willis | Third | 7 out |
| Wednesday, July 18 |
| » Defeated Phillies (41-42), 9-3 | Exposition Park III (29-18) | 51-29 | |
| » Starters: Johnny Lush vs Sam Leever | Third | 6½ out |
| Thursday, July 19 |
| » Defeated Phillies (41-43), 6-3 | Exposition Park III (30-18) | 52-29 | Won 2 |
| » Starters: Bill Duggleby vs Deacon Phillippe | Third | 5½ out |
| Friday, July 20 |
| » Lost to Phillies (42-43), 3-1 | Exposition Park III (30-19) | 52-30 | |
| » Starters: Johnny Lush vs Chappie McFarland | Third | 6½ out |
| Saturday, July 21 |
| » Defeated Giants (52-30), 8-2 | Exposition Park III (31-19) | 53-30 | |
| » Starters: Dummy Taylor vs Mike Lynch | Second | 5½ out |
| Monday, July 23 |
| » Defeated Giants (52-31), 7-1 | Exposition Park III (32-19) | 54-30 | Won 2 |
| » Starters: Hooks Wiltse vs Lefty Leifield | Second | 5 out |
| Tuesday, July 24 |
| » Defeated Giants (52-32), 4-3 | Exposition Park III (33-19) | 55-30 | Won 3 |
| » Starters: Joe McGinnity vs Sam Leever | Second | 4 out |
| Wednesday, July 25 |
| » Lost to Giants (53-32), 3-0 | Exposition Park III (33-20) | 55-31 | |
| » Starters: Christy Mathewson vs Deacon Phillippe | Second | 4½ out |
| Thursday, July 26 |
| » Defeated Phillies (42-48), 7-2 | Baker Bowl (4-1) | 56-31 | |
| » Starters: Vic Willis vs Tully Sparks | Second | 4½ out |
| Friday, July 27 |
| » Defeated Phillies (42-49), 10-2 | Baker Bowl (5-1) | 57-31 | Won 2 |
| » Starters: Lefty Leifield vs Johnny Lush | Second | 4½ out |
| Saturday, July 28 |
| » Defeated Phillies (42-50), 9-3 | Baker Bowl (6-1) | 58-31 | Won 3 |
| » Starters: Sam Leever vs Togie Pittinger | Second | 4½ out |
| Tuesday, July 31 |
| » Lost to Dodgers (38-53), 3-2 | Washington Park III (2-1) | 58-32 | |
| » Starters: Vic Willis vs Elmer Stricklett | Second | 6 out |
| Wednesday, August 1 |
| » Defeated Dodgers (38-54), 1-0 | Washington Park III (3-1) | 59-32 | |
| » Starters: Lefty Leifield vs Harry McIntire | Second | 5 out |
| Friday, August 3 |
| » Lost to Dodgers (39-54), 2-1 | Washington Park III (3-2) | 59-33 | |
| » Starters: Mike Lynch vs Doc Scanlan | Third | 6½ out |
| Saturday, August 4 |
| » Lost to Braves (34-62), 1-0 | South End Grounds III (3-1) | 59-34 | Lost 2 |
| » Starters: Vic Willis vs Irv Young | Third | 6½ out |
| Monday, August 6 |
| » Defeated Braves (34-63), 3-0 | South End Grounds III (4-1) | 60-34 | |
| » Starters: Lefty Leifield vs Gus Dorner | Third | 6 out |
| » Defeated Braves (34-64), 7-3 | South End Grounds III (5-1) | 61-34 | Won 2 |
| » Starters: Sam Leever vs Vive Lindaman | Third | 6 out |
| Tuesday, August 7 |
| » Defeated Braves (34-65), 7-5 | South End Grounds III (6-1) | 62-34 | Won 3 |
| » Starters: Mike Lynch vs Roy Witherup | Third | 5½ out |
| Wednesday, August 8 |
| » Defeated Braves (34-66), 2-0 | South End Grounds III (7-1) | 63-34 | Won 4 |
| » Starters: Vic Willis vs Irv Young | Second | 5½ out |
| Thursday, August 9 |
| » Lost to Giants (62-34), 6-0 | Polo Grounds IV (1-2) | 63-35 | |
| » Starters: Lefty Leifield vs Christy Mathewson | Third | 6½ out |
| Friday, August 10 |
| » Lost to Giants (63-34), 1-0 | Polo Grounds IV (1-3) | 63-36 | Lost 2 |
| » Starters: Sam Leever vs Dummy Taylor | Third | 7½ out |
| Saturday, August 11 |
| » Lost to Giants (64-34), 2-1 | Polo Grounds IV (1-4) | 63-37 | Lost 3 |
| » Starters: Mike Lynch vs Joe McGinnity | Third | 8½ out |
| Monday, August 13 |
| » Lost to Giants (65-34), 6-1 | Polo Grounds IV (1-5) | 63-38 | Lost 4 |
| » Starters: Vic Willis vs Hooks Wiltse | Third | 10 out |
| » Lost to Giants (66-34), 2-1 | Polo Grounds IV (1-6) | 63-39 | Lost 5 |
| » Starters: Lefty Leifield vs Christy Mathewson | Third | 10 out |
| Tuesday, August 14 |
| » Defeated Braves (36-69), 4-0 | Exposition Park III (34-20) | 64-39 | |
| » Starters: Vive Lindaman vs Sam Leever | Third | 9½ out |
| Wednesday, August 15 |
| » Lost to Braves (37-69), 5-3 | Exposition Park III (34-21) | 64-40 | |
| » Starters: Irv Young vs Mike Lynch | Third | 10 out |
| » Defeated Braves (37-70), 10-4 | Exposition Park III (35-21) | 65-40 | |
| » Starters: Gus Dorner vs Vic Willis | Third | 10 out |
| Thursday, August 16 |
| » Defeated Braves (37-71), 8-0 | Exposition Park III (36-21) | 66-40 | Won 2 |
| » Starters: Big Jeff Pfeffer vs Homer Hillebrand | Third | 10 out |
| Friday, August 17 |
| » Defeated Braves (37-72), 4-2 | Exposition Park III (37-21) | 67-40 | Won 3 |
| » Starters: Vive Lindaman vs Deacon Phillippe | Third | 10 out |
| Saturday, August 18 |
| » Defeated Dodgers (41-64), 7-2 | Exposition Park III (38-21) | 68-40 | Won 4 |
| » Starters: Harry McIntire vs Sam Leever | Third | 10 out |
| Monday, August 20 |
| » Defeated Dodgers (41-65), 2-1 | Exposition Park III (39-21) | 69-40 | Won 5 |
| » Starters: Mal Eason vs Mike Lynch | Third | 9½ out |
| Tuesday, August 21 |
| » Defeated Dodgers (41-66), 8-7 | Exposition Park III (40-21) | 70-40 | Won 6 |
| » Starters: Elmer Stricklett vs Lefty Leifield | Third | 9½ out |
| Wednesday, August 22 |
| » Defeated Giants (70-38), 2-1 | Exposition Park III (41-21) | 71-40 | Won 7 |
| » Starters: Christy Mathewson vs Vic Willis | Third | 9½ out |
| Thursday, August 23 |
| » Defeated Giants (70-39), 7-3 | Exposition Park III (42-21) | 72-40 | Won 8 |
| » Starters: Hooks Wiltse vs Sam Leever | Second | 9½ out |
| Friday, August 24 |
| » Lost to Giants (71-39), 3-0 | Exposition Park III (42-22) | 72-41 | |
| » Starters: Joe McGinnity vs Mike Lynch | Third | 11 out |
| Saturday, August 25 |
| » Defeated Phillies (52-63), 8-3 | Exposition Park III (43-22) | 73-41 | |
| » Starters: Tully Sparks vs Lefty Leifield | Third | 11 out |
| Tuesday, August 28 |
| » Defeated Phillies (52-64), 5-3 | Exposition Park III (44-22) | 74-41 | Won 2 |
| » Starters: Johnny Lush vs Vic Willis | Third | 12½ out |
| » Lost to Phillies (53-64), 2-0 | Exposition Park III (44-23) | 74-42 | |
| » Starters: Lew Richie vs Mike Lynch | Third | 12½ out |
| Wednesday, August 29 |
| » Defeated Cardinals (45-74), 1-0 | Robison Field (6-3) | 75-42 | |
| » Starters: Sam Leever vs Fred Beebe | Third | 12½ out |
| Thursday, August 30 |
| » Defeated Cardinals (45-75), 5-4 | Robison Field (7-3) | 76-42 | Won 2 |
| » Starters: Lefty Leifield vs Ed Karger | Second | 12½ out |
| Friday, August 31 |
| » Defeated Cardinals (45-76), 7-5 | Robison Field (8-3) | 77-42 | Won 3 |
| » Starters: Lou Manske vs Charlie Rhodes | Second | 12½ out |
| Saturday, September 1 |
| » Defeated Reds (51-72), 9-7 | Palace of the Fans (6-3) | 78-42 | Won 4 |
| » Starters: Sam Leever vs Bob Ewing | Second | 12½ out |
| Sunday, September 2 |
| » Lost to Reds (52-72), 4-2 | Palace of the Fans (6-4) | 78-43 | |
| » Starters: Lefty Leifield vs Chick Fraser | Second | 12½ out |
| Monday, September 3 |
| » Defeated Cardinals (46-78), 2-1 | Exposition Park III (45-23) | 79-43 | |
| » Starters: Ed Karger vs Deacon Phillippe | Second | 12½ out |
| » Defeated Cardinals (46-79), 7-1 | Exposition Park III (46-23) | 80-43 | Won 2 |
| » Starters: Irv Higginbotham vs Vic Willis | Second | 12½ out |
| Tuesday, September 4 |
| » Defeated Cardinals (46-80), 5-1 | Exposition Park III (47-23) | 81-43 | Won 3 |
| » Starters: Gus Thompson vs Homer Hillebrand | Second | 12½ out |
| Wednesday, September 5 |
| » Lost to Cardinals (47-80), 9-4 | Exposition Park III (47-24) | 81-44 | |
| » Starters: Ed Karger vs Sam Leever | Third | 13 out |
| Thursday, September 6 |
| » Lost to Cubs (96-32), 2-0 | West Side Grounds (3-4) | 81-45 | Lost 2 |
| » Starters: Lefty Leifield vs Mordecai Brown | Third | 14 out |
| Friday, September 7 |
| » Lost to Cubs (97-32), 9-1 | West Side Grounds (3-5) | 81-46 | Lost 3 |
| » Starters: Deacon Phillippe vs Ed Reulbach | Third | 15 out |
| Saturday, September 8 |
| » Lost to Cubs (98-32), 3-0 | West Side Grounds (3-6) | 81-47 | Lost 4 |
| » Starters: Vic Willis vs Jack Taylor | Third | 16 out |
| Sunday, September 9 |
| » Lost to Cubs (99-32), 7-2 | West Side Grounds (3-7) | 81-48 | Lost 5 |
| » Starters: Sam Leever vs Jack Pfiester | Third | 17 out |
| Tuesday, September 11 |
| » Tied Reds, 0-0 | Exposition Park III (47-24) | 81-48 | |
| » Starters: Bob Ewing vs Deacon Phillippe | Third | 17 out |
| Wednesday, September 12 |
| » Lost to Reds (57-76), 6-5 | Exposition Park III (47-25) | 81-49 | Lost 6 |
| » Starters: Bill Essick vs Bert Maxwell | Third | 17½ out |
| » Major-league debuts: Bill Essick (Reds) |
| Thursday, September 13 |
| » Defeated Reds (57-77), 5-3 | Exposition Park III (48-25) | 82-49 | |
| » Starters: Jake Weimer vs Sam Leever | Third | 17 out |
| » Defeated Reds (57-78), 3-0 | Exposition Park III (49-25) | 83-49 | Won 2 |
| » Starters: Chick Fraser vs Lefty Leifield | Third | 17 out |
| Friday, September 14 |
| » Major-league debuts: Art Fromme (Cardinals) |
| Saturday, September 15 |
| » Lost to Reds (58-78), 4-1 | Exposition Park III (49-26) | 83-50 | |
| » Starters: Charley Hall vs Vic Willis | Third | 19 out |
| Sunday, September 16 |
| » Lost to Cubs (104-32), 5-1 | West Side Grounds (3-8) | 83-51 | Lost 2 |
| » Starters: Homer Hillebrand vs Jack Pfiester | Third | 20 out |
| Tuesday, September 18 |
| » Lost to Giants (88-47), 3-2 | Polo Grounds IV (1-7) | 83-52 | Lost 3 |
| » Starters: Vic Willis vs Hooks Wiltse | Third | 20 out |
| Wednesday, September 19 |
| » Defeated Giants (88-48), 5-4 | Polo Grounds IV (2-7) | 84-52 | |
| » Starters: Sam Leever vs Red Ames | Third | 20 out |
| Thursday, September 20 |
| » Lost to Giants (89-48), 10-4 | Polo Grounds IV (2-8) | 84-53 | |
| » Starters: Lefty Leifield vs Joe McGinnity | Third | 19½ out |
| » Defeated Giants (89-49), 3-2 | Polo Grounds IV (3-8) | 85-53 | |
| » Starters: Deacon Phillippe vs Christy Mathewson | Third | 19½ out |
| Friday, September 21 |
| » Lost to Braves (45-95), 5-1 | South End Grounds III (7-2) | 85-54 | |
| » Starters: Vic Willis vs Gus Dorner | Third | 20½ out |
| Monday, September 24 |
| » Defeated Braves (45-96), 6-5 | South End Grounds III (8-2) | 86-54 | |
| » Starters: Lefty Leifield vs Vive Lindaman | Third | 20½ out |
| » Defeated Braves (45-97), 6-0 | South End Grounds III (9-2) | 87-54 | Won 2 |
| » Starters: Deacon Phillippe vs Irv Young | Third | 20½ out |
| » Major-league debuts: Alan Storke (Pirates) |
| Tuesday, September 25 |
| » Lost to Phillies (68-75), 4-3 | Baker Bowl (6-2) | 87-55 | |
| » Starters: Sam Leever vs Tully Sparks | Third | 21½ out |
| » Major-league debuts: Bill Abstein (Pirates) |
| Wednesday, September 26 |
| » Defeated Phillies (68-76), 5-0 | Baker Bowl (7-2) | 88-55 | |
| » Starters: Vic Willis vs Lew Richie | Third | 21 out |
| » Defeated Phillies (68-77), 8-0 | Baker Bowl (8-2) | 89-55 | Won 2 |
| » Starters: Lefty Leifield vs Walter Moser | Third | 21 out |
| Thursday, September 27 |
| » Lost to Phillies (69-77), 9-3 | Baker Bowl (8-3) | 89-56 | |
| » Starters: Deacon Phillippe vs John McCloskey | Third | 21 out |
| Friday, September 28 |
| » Lost to Dodgers (61-83), 5-4 | Washington Park III (3-3) | 89-57 | Lost 2 |
| » Starters: King Brady vs Doc Scanlan | Third | 21½ out |
| » Defeated Dodgers (61-84), 1-0 | Washington Park III (4-3) | 90-57 | |
| » Starters: Howie Camnitz vs Harry McIntire | Third | 21½ out |
| Saturday, September 29 |
| » Defeated Dodgers (61-85), 3-0 | Washington Park III (5-3) | 91-57 | Won 2 |
| » Starters: Vic Willis vs Elmer Stricklett | Third | 21½ out |
| » Lost to Dodgers (62-85), 6-5 | Washington Park III (5-4) | 91-58 | |
| » Starters: Lefty Leifield vs Mal Eason | Third | 21½ out |
| Monday, October 1 |
| » Defeated Dodgers (62-86), 5-1 | Washington Park III (6-4) | 92-58 | |
| » Starters: King Brady vs Jim Pastorius | Third | 22 out |
| Tuesday, October 2 |
| » Lost to Dodgers (63-86), 2-0 | Washington Park III (6-5) | 92-59 | |
| » Starters: Vic Willis vs Jesse Whiting | Third | 22½ out |
| Thursday, October 4 |
| » Lost to Cubs (115-36), 4-0 | Exposition Park III (49-27) | 92-60 | Lost 2 |
| » Starters: Jack Pfiester vs Lefty Leifield | Third | 23½ out |
| Sunday, October 7 |
| » Defeated Reds (64-87), 5-2 | Palace of the Fans (7-4) | 93-60 | |
| » Starters: Sam Leever vs Bill Essick | Third | 23 out |
| Friday, October 12 |
| Future Pirate Joe Cronin is born in San Francisco, CA. |
| Friday, November 9 |
| Future Pirate Fred Brickell is born in Saffordville, KS. |
| Sunday, December 2 |
| Future Pirate Johnny Welch is born in Washington, DC. |
| Friday, December 7 |
| Future Pirate Tony Piet is born in Berwick, PA. |
Game information provided by Retrosheet (www.retrosheet.org) |
