| Sunday, January 28 |
| Future Pirate Emil Yde is born in Great Lakes, IL. |
| Wednesday, January 31 |
| Future Pirate Don Songer is born in Walnut, KS. |
| Thursday, February 22 |
| Future Pirate Roy Spencer is born in Scranton, NC. |
| Thursday, April 19 |
| » Lost to Cardinals (1-0), 3-0 | Robison Field (0-1) | 0-1 | |
| Saturday, April 21 |
| » Defeated Cardinals (1-1), 4-3 | Robison Field (1-1) | 1-1 | |
| Sunday, April 22 |
| » Lost to Cardinals (2-1), 6-5 | Robison Field (1-2) | 1-2 | |
| Monday, April 23 |
| » Defeated Reds (2-2), 6-0 | League Park II (1-0) | 2-2 | |
| Tuesday, April 24 |
| » Defeated Reds (2-3), 5-3 | League Park II (2-0) | 3-2 | Won 2 |
| Wednesday, April 25 |
| » Lost to Reds (3-3), 9-8 | League Park II (2-1) | 3-3 | |
| Thursday, April 26 |
| » Lost to Reds (4-3), 12-11 | Exposition Park III (0-1) | 3-4 | Lost 2 |
| Friday, April 27 |
| » Lost to Reds (5-3), 19-5 | Exposition Park III (0-2) | 3-5 | Lost 3 |
| » Major-league debuts: Doc Newton (Reds) |
| Saturday, April 28 |
| » Lost to Reds (6-3), 7-4 | Exposition Park III (0-3) | 3-6 | Lost 4 |
| Sunday, April 29 |
| » Defeated Reds (6-4), 8-6 | League Park II (3-1) | 4-6 | |
| Wednesday, May 2 |
| » Defeated Cardinals (6-6), 6-5 | Exposition Park III (1-3) | 5-6 | Won 2 |
| Thursday, May 3 |
| » Lost to Cardinals (7-6), 9-2 | Exposition Park III (1-4) | 5-7 | |
| Saturday, May 5 |
| » Defeated Cardinals (7-7), 5-1 | Exposition Park III (2-4) | 6-7 | |
| Sunday, May 6 |
| » Lost to Cubs (7-8), 7-6 | West Side Grounds (0-1) | 6-8 | |
| Monday, May 7 |
| » Defeated Cubs (7-9), 6-4 | Exposition Park III (3-4) | 7-8 | |
| Tuesday, May 8 |
| » Lost to Cubs (8-9), 2-1 | Exposition Park III (3-5) | 7-9 | |
| Thursday, May 10 |
| » Defeated Cubs (8-10), 5-4 | Exposition Park III (4-5) | 8-9 | |
| Saturday, May 12 |
| » Defeated Braves (5-11), 5-1 | Exposition Park III (5-5) | 9-9 | Won 2 |
| Sunday, May 13 |
| » Defeated Reds (9-9), 7-6 | League Park II (4-1) | 10-9 | Won 3 |
| Monday, May 14 |
| » Defeated Braves (5-12), 6-3 | Exposition Park III (6-5) | 11-9 | Won 4 |
| Tuesday, May 15 |
| » Defeated Braves (5-13), 7-5 | Exposition Park III (7-5) | 12-9 | Won 5 |
| Wednesday, May 16 |
| » Defeated Phillies (14-6), 8-3 | Exposition Park III (8-5) | 13-9 | Won 6 |
| Thursday, May 17 |
| » Lost to Phillies (15-6), 4-3 | Exposition Park III (8-6) | 13-10 | |
| Friday, May 18 |
| » Defeated Phillies (15-7), 11-4 | Exposition Park III (9-6) | 14-10 | |
| Sunday, May 20 |
| » Lost to Cubs (15-10), 6-3 | West Side Grounds (0-2) | 14-11 | |
| Future Pirate George Grantham is born in Galena, KS. |
| Monday, May 21 |
| » Lost to Dodgers (15-9), 7-5 | Exposition Park III (9-7) | 14-12 | Lost 2 |
| Tuesday, May 22 |
| » Lost to Dodgers (16-9), 4-1 | Exposition Park III (9-8) | 14-13 | Lost 3 |
| Wednesday, May 23 |
| » Defeated Dodgers (16-10), 8-5 | Exposition Park III (10-8) | 15-13 | |
| Thursday, May 24 |
| » Defeated Dodgers (16-11), 5-4 | Exposition Park III (11-8) | 16-13 | Won 2 |
| Friday, May 25 |
| » Lost to Giants (9-17), 4-3 | Exposition Park III (11-9) | 16-14 | |
| Saturday, May 26 |
| » Lost to Giants (10-17), 13-6 | Exposition Park III (11-10) | 16-15 | Lost 2 |
| Sunday, May 27 |
| » Defeated Reds (12-17), 10-2 | League Park II (5-1) | 17-15 | |
| Monday, May 28 |
| » Defeated Giants (10-18), 14-0 | Exposition Park III (12-10) | 18-15 | Won 2 |
| Wednesday, May 30 |
| » Defeated Giants (10-19), 7-6 | Polo Grounds IV (1-0) | 19-15 | Won 3 |
| » Lost to Giants (11-19), 9-1 | Polo Grounds IV (1-1) | 19-16 | |
| Thursday, May 31 |
| » Defeated Giants (11-20), 6-4 | Polo Grounds IV (2-1) | 20-16 | |
| Friday, June 1 |
| » Lost to Giants (12-20), 6-4 | Polo Grounds IV (2-2) | 20-17 | |
| Saturday, June 2 |
| » Lost to Phillies (23-11), 8-2 | Baker Bowl (0-1) | 20-18 | Lost 2 |
| Monday, June 4 |
| » Defeated Phillies (23-12), 5-4 | Baker Bowl (1-1) | 21-18 | |
| Tuesday, June 5 |
| » Lost to Phillies (24-12), 6-5 | Baker Bowl (1-2) | 21-19 | |
| Wednesday, June 6 |
| » Defeated Phillies (24-13), 6-3 | Baker Bowl (2-2) | 22-19 | |
| » Major-league debuts: Fred Jacklitsch (Phillies) |
| Thursday, June 7 |
| » Defeated Dodgers (21-16), 7-4 | Washington Park III (1-0) | 23-19 | Won 2 |
| Saturday, June 9 |
| » Lost to Dodgers (22-16), 9-3 | Washington Park III (1-1) | 23-20 | |
| Monday, June 11 |
| » Lost to Dodgers (23-16), 8-7 | Washington Park III (1-2) | 23-21 | Lost 2 |
| Tuesday, June 12 |
| » Lost to Braves (19-20), 3-1 | South End Grounds III (0-1) | 23-22 | Lost 3 |
| Wednesday, June 13 |
| » Lost to Braves (20-20), 1-0 | South End Grounds III (0-2) | 23-23 | Lost 4 |
| Thursday, June 14 |
| » Lost to Braves (21-20), 7-3 | South End Grounds III (0-3) | 23-24 | Lost 5 |
| Saturday, June 16 |
| » Lost to Cubs (21-24), 8-5 | Exposition Park III (12-11) | 23-25 | Lost 6 |
| Sunday, June 17 |
| » Lost to Cubs (22-24), 8-1 | West Side Grounds (0-3) | 23-26 | Lost 7 |
| Monday, June 18 |
| » Defeated Cubs (22-25), 4-1 | West Side Grounds (1-3) | 24-26 | |
| Tuesday, June 19 |
| » Lost to Cubs (23-25), 1-0 | West Side Grounds (1-4) | 24-27 | |
| Wednesday, June 20 |
| » Defeated Cubs (23-26), 8-1 | West Side Grounds (2-4) | 25-27 | |
| Saturday, June 23 |
| Future Pirate Bill Harris is born in Wylie, TX. |
| Tuesday, June 26 |
| » Defeated Cubs (24-29), 8-6 | Exposition Park III (13-11) | 26-27 | Won 2 |
| Wednesday, June 27 |
| » Defeated Cubs (24-30), 9-2 | Exposition Park III (14-11) | 27-27 | Won 3 |
| Thursday, June 28 |
| » Defeated Phillies (32-22), 3-0 | Exposition Park III (15-11) | 28-27 | Won 4 |
| Friday, June 29 |
| » Lost to Phillies (33-22), 4-2 | Exposition Park III (15-12) | 28-28 | |
| Saturday, June 30 |
| » Defeated Phillies (33-23), 5-3 | Exposition Park III (16-12) | 29-28 | |
| Sunday, July 1 |
| » Defeated Reds (26-30), 6-0 | League Park II (6-1) | 30-28 | Won 2 |
| Monday, July 2 |
| » Defeated Braves (27-28), 2-1 | Exposition Park III (17-12) | 31-28 | Won 3 |
| Tuesday, July 3 |
| » Defeated Braves (27-29), 2-1 | Exposition Park III (18-12) | 32-28 | Won 4 |
| Wednesday, July 4 |
| » Defeated Braves (27-30), 8-6 | Exposition Park III (19-12) | 33-28 | Won 5 |
| » Defeated Braves (27-31), 3-1 | Exposition Park III (20-12) | 34-28 | Won 6 |
| Thursday, July 5 |
| » Lost to Giants (21-37), 7-3 | Exposition Park III (20-13) | 34-29 | |
| Saturday, July 7 |
| » Defeated Giants (21-38), 4-3 | Exposition Park III (21-13) | 35-29 | |
| Sunday, July 8 |
| » Lost to Cardinals (27-33), 17-3 | Robison Field (1-3) | 35-30 | |
| Tuesday, July 10 |
| » Lost to Dodgers (42-21), 4-2 | Exposition Park III (21-14) | 35-31 | Lost 2 |
| Wednesday, July 11 |
| » Defeated Dodgers (42-22), 4-0 | Exposition Park III (22-14) | 36-31 | |
| Thursday, July 12 |
| » Defeated Dodgers (42-23), 7-6 | Exposition Park III (23-14) | 37-31 | Won 2 |
| Friday, July 13 |
| » Lost to Phillies (36-32), 23-8 | Exposition Park III (23-15) | 37-32 | |
| Saturday, July 14 |
| » Defeated Cubs (36-32), 6-1 | West Side Grounds (3-4) | 38-32 | |
| Sunday, July 15 |
| » Lost to Cubs (37-32), 5-3 | West Side Grounds (3-5) | 38-33 | |
| Monday, July 16 |
| » Defeated Cubs (37-33), 7-3 | West Side Grounds (4-5) | 39-33 | |
| Tuesday, July 17 |
| » Defeated Cubs (37-34), 2-0 | Exposition Park III (24-15) | 40-33 | Won 2 |
| Thursday, July 19 |
| » Lost to Phillies (38-34), 4-3 | Baker Bowl (2-3) | 40-34 | |
| Friday, July 20 |
| » Lost to Phillies (39-34), 7-4 | Baker Bowl (2-4) | 40-35 | Lost 2 |
| Saturday, July 21 |
| » Lost to Phillies (40-34), 3-0 | Baker Bowl (2-5) | 40-36 | Lost 3 |
| Tuesday, July 24 |
| » Lost to Giants (27-44), 2-1 | Polo Grounds IV (2-3) | 40-37 | Lost 4 |
| Wednesday, July 25 |
| » Defeated Giants (27-45), 11-3 | Polo Grounds IV (3-3) | 41-37 | |
| Friday, July 27 |
| » Lost to Braves (37-39), 3-2 | South End Grounds III (0-4) | 41-38 | |
| Saturday, July 28 |
| » Defeated Braves (37-40), 9-2 | South End Grounds III (1-4) | 42-38 | |
| Tuesday, July 31 |
| » Defeated Dodgers (49-29), 17-1 | Washington Park III (2-2) | 43-38 | Won 2 |
| Wednesday, August 1 |
| » Lost to Dodgers (50-29), 10-6 | Washington Park III (2-3) | 43-39 | |
| Saturday, August 4 |
| » Defeated Phillies (45-37), 4-3 | Exposition Park III (25-15) | 44-39 | |
| Sunday, August 5 |
| » Lost to Reds (38-46), 3-1 | League Park II (6-2) | 44-40 | |
| Monday, August 6 |
| » Defeated Phillies (45-38), 7-3 | Exposition Park III (26-15) | 45-40 | |
| Tuesday, August 7 |
| » Defeated Phillies (45-39), 9-0 | Exposition Park III (27-15) | 46-40 | Won 2 |
| Wednesday, August 8 |
| » Defeated Braves (42-44), 6-3 | Exposition Park III (28-15) | 47-40 | Won 3 |
| Thursday, August 9 |
| » Lost to Braves (43-44), 3-2 | Exposition Park III (28-16) | 47-41 | |
| Saturday, August 11 |
| » Defeated Braves (43-45), 5-1 | Exposition Park III (29-16) | 48-41 | |
| Sunday, August 12 |
| » Defeated Cubs (44-45), 6-2 | West Side Grounds (5-5) | 49-41 | Won 2 |
| Monday, August 13 |
| » Lost to Giants (35-49), 7-4 | Exposition Park III (29-17) | 49-42 | |
| Tuesday, August 14 |
| » Defeated Giants (35-50), 5-0 | Exposition Park III (30-17) | 50-42 | |
| » Defeated Giants (35-51), 7-1 | Exposition Park III (31-17) | 51-42 | Won 2 |
| Wednesday, August 15 |
| » Defeated Giants (35-52), 6-2 | Exposition Park III (32-17) | 52-42 | Won 3 |
| Thursday, August 16 |
| » Lost to Dodgers (57-33), 8-0 | Exposition Park III (32-18) | 52-43 | |
| » Major-league debuts: Bert Husting (Pirates) |
| Friday, August 17 |
| » Defeated Dodgers (57-34), 5-3 | Exposition Park III (33-18) | 53-43 | |
| Saturday, August 18 |
| » Defeated Dodgers (57-35), 8-4 | Exposition Park III (34-18) | 54-43 | Won 2 |
| Monday, August 20 |
| » Lost to Giants (37-54), 4-2 | Exposition Park III (34-19) | 54-44 | |
| Thursday, August 23 |
| » Lost to Reds (46-52), 3-2 | Exposition Park III (34-20) | 54-45 | Lost 2 |
| Friday, August 24 |
| » Lost to Reds (47-52), 11-2 | Exposition Park III (34-21) | 54-46 | Lost 3 |
| Saturday, August 25 |
| » Defeated Reds (47-53), 6-5 | Exposition Park III (35-21) | 55-46 | |
| Sunday, August 26 |
| » Lost to Reds (48-53), 1-0 | League Park II (6-3) | 55-47 | |
| Thursday, August 30 |
| » Defeated Cardinals (47-54), 11-3 | Exposition Park III (36-21) | 56-47 | |
| Friday, August 31 |
| » Lost to Cardinals (48-54), 10-5 | Exposition Park III (36-22) | 56-48 | |
| Saturday, September 1 |
| » Defeated Cardinals (48-55), 2-1 | Exposition Park III (37-22) | 57-48 | |
| Monday, September 3 |
| » Defeated Braves (52-52), 8-7 | South End Grounds III (2-4) | 58-48 | Won 2 |
| » Defeated Braves (52-53), 14-1 | South End Grounds III (3-4) | 59-48 | Won 3 |
| Tuesday, September 4 |
| » Defeated Braves (52-54), 9-0 | South End Grounds III (4-4) | 60-48 | Won 4 |
| » Defeated Braves (52-55), 6-5 | South End Grounds III (5-4) | 61-48 | Won 5 |
| Wednesday, September 5 |
| » Defeated Braves (52-56), 5-2 | South End Grounds III (6-4) | 62-48 | Won 6 |
| Thursday, September 6 |
| » Defeated Dodgers (65-42), 9-2 | Washington Park III (3-3) | 63-48 | Won 7 |
| Friday, September 7 |
| » Tied Dodgers, 6-6 | Washington Park III (3-3) | 63-48 | |
| Saturday, September 8 |
| » Defeated Dodgers (65-43), 15-7 | Washington Park III (4-3) | 64-48 | Won 8 |
| » Lost to Dodgers (66-43), 6-5 | Washington Park III (4-4) | 64-49 | |
| Monday, September 10 |
| » Defeated Dodgers (66-44), 6-5 | Washington Park III (5-4) | 65-49 | |
| » Major-league debuts: Jiggs Donahue (Pirates) |
| Tuesday, September 11 |
| » Defeated Phillies (58-54), 2-0 | Baker Bowl (3-5) | 66-49 | Won 2 |
| Wednesday, September 12 |
| » Defeated Phillies (58-55), 10-9 | Baker Bowl (4-5) | 67-49 | Won 3 |
| Thursday, September 13 |
| » Lost to Phillies (59-55), 11-6 | Baker Bowl (4-6) | 67-50 | |
| Saturday, September 15 |
| » Lost to Giants (50-67), 2-1 | Polo Grounds IV (3-4) | 67-51 | Lost 2 |
| Monday, September 17 |
| » Defeated Giants (50-68), 12-3 | Polo Grounds IV (4-4) | 68-51 | |
| » Major-league debuts: Danny Murphy (Giants) |
| Tuesday, September 18 |
| » Defeated Giants (50-69), 9-4 | Polo Grounds IV (5-4) | 69-51 | Won 2 |
| Wednesday, September 19 |
| » Defeated Giants (50-70), 5-2 | Polo Grounds IV (6-4) | 70-51 | Won 3 |
| Thursday, September 20 |
| » Defeated Cardinals (54-65), 10-4 | Exposition Park III (38-22) | 71-51 | Won 4 |
| Friday, September 21 |
| » Defeated Cardinals (54-66), 7-3 | Exposition Park III (39-22) | 72-51 | Won 5 |
| Saturday, September 22 |
| » Lost to Cardinals (55-66), 7-6 | Exposition Park III (39-23) | 72-52 | |
| Sunday, September 23 |
| » Defeated Cardinals (55-67), 3-1 | Robison Field (2-3) | 73-52 | |
| Monday, September 24 |
| » Lost to Cardinals (56-67), 1-0 | Robison Field (2-4) | 73-53 | |
| Wednesday, September 26 |
| » Lost to Reds (55-71), 6-4 | Exposition Park III (39-24) | 73-54 | Lost 2 |
| Thursday, September 27 |
| » Lost to Reds (56-71), 4-1 | Exposition Park III (39-25) | 73-55 | Lost 3 |
| Friday, September 28 |
| » Defeated Reds (56-72), 8-1 | Exposition Park III (40-25) | 74-55 | |
| Saturday, September 29 |
| » Lost to Reds (57-72), 2-1 | Exposition Park III (40-26) | 74-56 | |
| Sunday, September 30 |
| » Lost to Reds (58-72), 4-3 | League Park II (6-4) | 74-57 | Lost 2 |
| Monday, October 1 |
| » Major-league debuts: Mal Eason (Cubs) |
| Saturday, October 6 |
| » Lost to Cardinals (62-71), 4-3 | Exposition Park III (40-27) | 74-58 | Lost 3 |
| » Major-league debuts: Ed Poole (Pirates) |
| Sunday, October 7 |
| » Defeated Cardinals (62-72), 3-2 | Robison Field (3-4) | 75-58 | |
| Monday, October 8 |
| » Defeated Cardinals (62-73), 8-0 | Robison Field (4-4) | 76-58 | Won 2 |
| » Defeated Cardinals (62-74), 8-2 | Robison Field (5-4) | 77-58 | Won 3 |
| Tuesday, October 9 |
| » Lost to Cardinals (63-74), 8-4 | Robison Field (5-5) | 77-59 | |
| Thursday, October 11 |
| » Defeated Cubs (64-74), 2-1 | Exposition Park III (41-27) | 78-59 | |
| Friday, October 12 |
| » Defeated Cubs (64-75), 10-6 | Exposition Park III (42-27) | 79-59 | Won 2 |
| Saturday, October 13 |
| » Lost to Cubs (65-75), 7-5 | Exposition Park III (42-28) | 79-60 | |
Game information provided by Retrosheet (www.retrosheet.org) |