| Thursday, April 11 |
| » Lost to Red Sox (1-0), 8-4 | Columbia Park (0-1) | 0-1 | |
| » Starters: Cy Young vs Jack Coombs | Second | 1 out |
| Saturday, April 13 |
| » Defeated Red Sox (1-1), 4-2 | Columbia Park (1-1) | 1-1 | |
| » Starters: George Winter vs Rube Vickers | Second | ½ out |
| Monday, April 15 |
| » Defeated Red Sox (1-2), 3-2 | Columbia Park (2-1) | 2-1 | Won 2 |
| » Starters: Joe Harris vs Eddie Plank | First | -- |
| Tuesday, April 16 |
| » Defeated Yankees (1-2), 9-6 | Hilltop Park (1-0) | 3-1 | Won 3 |
| » Starters: Jimmy Dygert vs Al Orth | First | -- |
| Wednesday, April 17 |
| » Lost to Yankees (2-2), 5-4 | Hilltop Park (1-1) | 3-2 | |
| » Starters: Rube Waddell vs Slow Joe Doyle | Second | 1 out |
| Thursday, April 18 |
| » Lost to Yankees (3-2), 8-4 | Hilltop Park (1-2) | 3-3 | Lost 2 |
| » Starters: Jack Coombs vs Walter Clarkson | Fourth | 1 out |
| Saturday, April 20 |
| » Defeated Senators (2-4), 6-5 | Columbia Park (3-1) | 4-3 | |
| » Starters: Frank Kitson vs Chief Bender | Third | 1½ out |
| Monday, April 22 |
| » Defeated Senators (2-5), 8-7 | Columbia Park (4-1) | 5-3 | Won 2 |
| » Starters: Charlie Smith vs Eddie Plank | Third | ½ out |
| Wednesday, April 24 |
| » Defeated Red Sox (3-6), 6-1 | Huntington Ave Baseball Grounds (1-0) | 6-3 | Won 3 |
| » Starters: Jack Coombs vs Cy Young | First | -- |
| Thursday, April 25 |
| » Defeated Red Sox (3-7), 4-2 | Huntington Ave Baseball Grounds (2-0) | 7-3 | Won 4 |
| » Starters: Chief Bender vs Jesse Tannehill | First | -- |
| Friday, April 26 |
| » Defeated Red Sox (3-8), 1-0 | Huntington Ave Baseball Grounds (3-0) | 8-3 | Won 5 |
| » Starters: Jimmy Dygert vs Tex Pruiett | First | -- |
| » Major-league debuts: Tex Pruiett (Red Sox) |
| Saturday, April 27 |
| » Lost to Red Sox (4-8), 5-2 | Huntington Ave Baseball Grounds (3-1) | 8-4 | |
| » Starters: Rube Vickers vs Ralph Glaze | First | -- |
| Monday, April 29 |
| » Defeated Senators (4-8), 3-1 | American League Park II (1-0) | 9-4 | |
| » Starters: Jack Coombs vs Cy Falkenberg | First | -- |
| Tuesday, April 30 |
| » Defeated Senators (4-9), 3-2 | American League Park II (2-0) | 10-4 | Won 2 |
| » Starters: Eddie Plank vs Frank Kitson | First | -- |
| Thursday, May 2 |
| » Lost to Senators (5-9), 4-1 | American League Park II (2-1) | 10-5 | |
| » Starters: Chief Bender vs Tom Hughes | Second | ½ out |
| Friday, May 3 |
| » Lost to Yankees (10-6), 4-3 | Columbia Park (4-2) | 10-6 | Lost 2 |
| » Starters: Slow Joe Doyle vs Jack Coombs | Second | 1 out |
| Saturday, May 4 |
| » Lost to Yankees (11-6), 8-0 | Columbia Park (4-3) | 10-7 | Lost 3 |
| » Starters: Al Orth vs Jimmy Dygert | Third | 2 out |
| Monday, May 6 |
| » Major-league debuts: Heinie Berger (Indians) |
| Thursday, May 9 |
| » Lost to White Sox (15-7), 6-0 | South Side Park III (0-1) | 10-8 | Lost 4 |
| » Starters: Eddie Plank vs Roy Patterson | Third | 3 out |
| Future Athletic Ed Cihocki is born in Wilmington, DE. |
| Saturday, May 11 |
| » Lost to White Sox (16-7), 7-2 | South Side Park III (0-2) | 10-9 | Lost 5 |
| » Starters: Rube Vickers vs Frank Smith | Fourth | 4 out |
| Sunday, May 12 |
| » Lost to White Sox (17-7), 10-3 | South Side Park III (0-3) | 10-10 | Lost 6 |
| » Starters: Eddie Plank vs Ed Walsh | Fourth | 5 out |
| Monday, May 13 |
| » Defeated White Sox (17-8), 9-1 | South Side Park III (1-3) | 11-10 | |
| » Starters: Rube Waddell vs Roy Patterson | Fourth | 4 out |
| Wednesday, May 15 |
| » Defeated Browns (7-17), 8-5 | Sportsman's Park II (1-0) | 12-10 | Won 2 |
| » Starters: Jack Coombs vs Harry Howell | Fourth | 3½ out |
| Thursday, May 16 |
| » Lost to Browns (8-17), 4-0 | Sportsman's Park II (1-1) | 12-11 | |
| » Starters: Eddie Plank vs Jack Powell | Fourth | 4½ out |
| Friday, May 17 |
| » Lost to Browns (9-17), 13-1 | Sportsman's Park II (1-2) | 12-12 | Lost 2 |
| » Starters: Rube Waddell vs Fred Glade | Fifth | 4½ out |
| Saturday, May 18 |
| » Lost to Tigers (15-10), 15-8 | Bennett Park (0-1) | 12-13 | Lost 3 |
| » Starters: Chief Bender vs George Mullin | Fifth | 5½ out |
| Monday, May 20 |
| » Defeated Tigers (15-11), 1-0 | Bennett Park (1-1) | 13-13 | |
| » Starters: Eddie Plank vs John Eubank | Fifth | 5 out |
| Tuesday, May 21 |
| » Defeated Tigers (15-12), 3-0 | Bennett Park (2-1) | 14-13 | Won 2 |
| » Starters: Rube Waddell vs Ed Willett | Fifth | 5 out |
| Wednesday, May 22 |
| » Lost to Tigers (16-12), 6-5 | Bennett Park (2-2) | 14-14 | |
| » Starters: Chief Bender vs George Mullin | Fifth | 5½ out |
| Thursday, May 23 |
| » Lost to Indians (20-12), 5-0 | League Park I (0-1) | 14-15 | Lost 2 |
| » Starters: Jack Coombs vs Jake Thielman | Fifth | 6 out |
| Friday, May 24 |
| » Lost to Indians (21-12), 3-0 | League Park I (0-2) | 14-16 | Lost 3 |
| » Starters: Eddie Plank vs Bob Rhoads | Fifth | 6½ out |
| Saturday, May 25 |
| » Lost to Indians (22-12), 5-2 | League Park I (0-3) | 14-17 | Lost 4 |
| » Starters: Rube Waddell vs Addie Joss | Fifth | 7½ out |
| Tuesday, May 28 |
| » Defeated Red Sox (11-22), 2-1 | Columbia Park (5-3) | 15-17 | |
| » Starters: George Winter vs Eddie Plank | Fifth | 7½ out |
| Wednesday, May 29 |
| » Defeated Red Sox (11-23), 4-0 | Columbia Park (6-3) | 16-17 | Won 2 |
| » Starters: Cy Young vs Jack Coombs | Fifth | 7 out |
| » Defeated Red Sox (11-24), 4-3 | Columbia Park (7-3) | 17-17 | Won 3 |
| » Starters: Ralph Glaze vs Rube Waddell | Fifth | 7 out |
| Thursday, May 30 |
| » Defeated Red Sox (11-25), 3-1 | Columbia Park (8-3) | 18-17 | Won 4 |
| » Starters: Frank Oberlin vs Jimmy Dygert | Fifth | 7 out |
| » Lost to Red Sox (12-25), 6-4 | Columbia Park (8-4) | 18-18 | |
| » Starters: Bill Dinneen vs Chief Bender | Fifth | 7 out |
| Friday, May 31 |
| » Defeated Senators (10-23), 8-2 | American League Park II (3-1) | 19-18 | |
| » Starters: Eddie Plank vs Tom Hughes | Fifth | 7 out |
| Monday, June 3 |
| » Lost to Senators (11-23), 2-1 | American League Park II (3-2) | 19-19 | |
| » Starters: Jack Coombs vs Charlie Smith | Fifth | 7½ out |
| » Defeated Senators (11-24), 8-4 | American League Park II (4-2) | 20-19 | |
| » Starters: Rube Waddell vs Cy Falkenberg | Fifth | 7½ out |
| Tuesday, June 4 |
| » Lost to White Sox (29-12), 10-6 | Columbia Park (8-5) | 20-20 | |
| » Starters: Roy Patterson vs Eddie Plank | Fifth | 8½ out |
| Thursday, June 6 |
| » Defeated White Sox (29-13), 3-0 | Columbia Park (9-5) | 21-20 | |
| » Starters: Ed Walsh vs Rube Waddell | Fourth | 7½ out |
| Friday, June 7 |
| » Defeated White Sox (29-14), 5-4 | Columbia Park (10-5) | 22-20 | Won 2 |
| » Starters: Doc White vs Eddie Plank | Fourth | 6½ out |
| Saturday, June 8 |
| » Defeated Browns (18-27), 4-2 | Columbia Park (11-5) | 23-20 | Won 3 |
| » Starters: Jack Powell vs Jimmy Dygert | Fourth | 5½ out |
| Monday, June 10 |
| » Defeated Browns (18-28), 3-0 | Columbia Park (12-5) | 24-20 | Won 4 |
| » Starters: Fred Glade vs Rube Waddell | Fourth | 5½ out |
| Tuesday, June 11 |
| » Lost to Browns (19-28), 3-0 | Columbia Park (12-6) | 24-21 | |
| » Starters: Barney Pelty vs Eddie Plank | Fourth | 6 out |
| Wednesday, June 12 |
| » Defeated Browns (19-29), 3-0 | Columbia Park (13-6) | 25-21 | |
| » Starters: Harry Howell vs Jimmy Dygert | Fourth | 6 out |
| Thursday, June 13 |
| » Lost to Indians (32-17), 6-5 | Columbia Park (13-7) | 25-22 | |
| » Starters: Bob Rhoads vs Rube Waddell | Fourth | 7 out |
| Friday, June 14 |
| » Major-league debuts: Fred Smith (Reds) |
| Saturday, June 15 |
| » Defeated Indians (32-18), 8-6 | Columbia Park (14-7) | 26-22 | |
| » Starters: Glenn Liebhardt vs Eddie Plank | Fourth | 6 out |
| Monday, June 17 |
| » Defeated Indians (32-19), 4-1 | Columbia Park (15-7) | 27-22 | Won 2 |
| » Starters: Addie Joss vs Jack Coombs | Fourth | 5 out |
| Tuesday, June 18 |
| » Lost to Tigers (28-18), 6-2 | Columbia Park (15-8) | 27-23 | |
| » Starters: Bill Donovan vs Rube Waddell | Fourth | 5 out |
| Wednesday, June 19 |
| » Defeated Tigers (28-19), 4-1 | Columbia Park (16-8) | 28-23 | |
| » Starters: George Mullin vs Jimmy Dygert | Fourth | 5 out |
| Thursday, June 20 |
| » Defeated Tigers (28-20), 4-0 | Columbia Park (17-8) | 29-23 | Won 2 |
| » Starters: John Eubank vs Eddie Plank | Fourth | 5 out |
| Friday, June 21 |
| » Lost to Tigers (29-20), 5-2 | Columbia Park (17-9) | 29-24 | |
| » Starters: Bill Donovan vs Rube Waddell | Fourth | 5½ out |
| Saturday, June 22 |
| » Defeated Senators (17-32), 4-0 | Columbia Park (18-9) | 30-24 | |
| » Starters: Casey Patten vs Jack Coombs | Fourth | 5½ out |
| Monday, June 24 |
| » Defeated Senators (17-33), 9-2 | Columbia Park (19-9) | 31-24 | Won 2 |
| » Starters: Charlie Smith vs Eddie Plank | Fourth | 3½ out |
| » Defeated Senators (17-34), 6-3 | Columbia Park (20-9) | 32-24 | Won 3 |
| » Starters: Cy Falkenberg vs Jimmy Dygert | Fourth | 3½ out |
| Tuesday, June 25 |
| » Defeated Senators (17-35), 3-1 | Columbia Park (21-9) | 33-24 | Won 4 |
| » Starters: Tom Hughes vs Rube Waddell | Third | 3 out |
| » Defeated Senators (17-36), 3-2 | Columbia Park (22-9) | 34-24 | Won 5 |
| » Starters: Charlie Smith vs Chief Bender | Third | 3 out |
| Thursday, June 27 |
| » Lost to Red Sox (21-38), 1-0 | Huntington Ave Baseball Grounds (3-2) | 34-25 | |
| » Starters: Jack Coombs vs Jesse Tannehill | Third | 3½ out |
| Friday, June 28 |
| » Lost to Red Sox (22-38), 4-3 | Huntington Ave Baseball Grounds (3-3) | 34-26 | Lost 2 |
| » Starters: Eddie Plank vs George Winter | Third | 4½ out |
| Saturday, June 29 |
| » Defeated Red Sox (22-39), 3-0 | Huntington Ave Baseball Grounds (4-3) | 35-26 | |
| » Starters: Rube Waddell vs Ralph Glaze | Third | 4½ out |
| Monday, July 1 |
| » Lost to Red Sox (23-39), 5-1 | Huntington Ave Baseball Grounds (4-4) | 35-27 | |
| » Starters: Jimmy Dygert vs Cy Young | Third | 6 out |
| Tuesday, July 2 |
| » Lost to Yankees (30-30), 8-7 | Hilltop Park (1-3) | 35-28 | Lost 2 |
| » Starters: Rube Waddell vs Frank Kitson | Third | 6 out |
| Wednesday, July 3 |
| » Defeated Yankees (30-31), 3-1 | Hilltop Park (2-3) | 36-28 | |
| » Starters: Eddie Plank vs Earl Moore | Third | 5 out |
| Thursday, July 4 |
| » Defeated Yankees (30-32), 3-1 | Hilltop Park (3-3) | 37-28 | Won 2 |
| » Starters: Chief Bender vs Al Orth | Third | 6 out |
| » Lost to Yankees (31-32), 7-3 | Hilltop Park (3-4) | 37-29 | |
| » Starters: Rube Waddell vs Doc Newton | Third | 6 out |
| Friday, July 5 |
| » Lost to Tigers (36-28), 9-5 | Bennett Park (2-3) | 37-30 | Lost 2 |
| » Starters: Jimmy Dygert vs Bill Donovan | Fourth | 6½ out |
| Saturday, July 6 |
| » Tied White Sox, 1-1 | South Side Park III (1-3) | 37-30 | |
| » Starters: Eddie Plank vs Roy Patterson | Fourth | 6½ out |
| Sunday, July 7 |
| » Lost to White Sox (44-23), 6-0 | South Side Park III (1-4) | 37-31 | Lost 3 |
| » Starters: Jimmy Dygert vs Ed Walsh | Fourth | 7½ out |
| Monday, July 8 |
| » Defeated White Sox (44-24), 5-2 | South Side Park III (2-4) | 38-31 | |
| » Starters: Chief Bender vs Frank Owen | Fourth | 6½ out |
| Tuesday, July 9 |
| » Lost to White Sox (45-24), 5-1 | South Side Park III (2-5) | 38-32 | |
| » Starters: Bill Bartley vs Doc White | Fourth | 7½ out |
| Wednesday, July 10 |
| » Defeated White Sox (45-25), 2-1 | South Side Park III (3-5) | 39-32 | |
| » Starters: Eddie Plank vs Ed Walsh | Fourth | 6½ out |
| Thursday, July 11 |
| » Defeated Browns (30-44), 6-5 | Sportsman's Park II (2-2) | 40-32 | Won 2 |
| » Starters: Jimmy Dygert vs Harry Howell | Fourth | 6½ out |
| Friday, July 12 |
| » Defeated Browns (30-45), 9-1 | Sportsman's Park II (3-2) | 41-32 | Won 3 |
| » Starters: Chief Bender vs Cy Morgan | Fourth | 6½ out |
| Saturday, July 13 |
| » Defeated Browns (30-46), 2-1 | Sportsman's Park II (4-2) | 42-32 | Won 4 |
| » Starters: Rube Waddell vs Jack Powell | Fourth | 6½ out |
| Tuesday, July 16 |
| » Defeated Indians (47-31), 3-2 | League Park I (1-3) | 43-32 | Won 5 |
| » Starters: Eddie Plank vs Addie Joss | Fourth | 7 out |
| Wednesday, July 17 |
| » Defeated Indians (47-32), 5-1 | League Park I (2-3) | 44-32 | Won 6 |
| » Starters: Rube Waddell vs Glenn Liebhardt | Third | 6½ out |
| Thursday, July 18 |
| » Defeated Indians (47-33), 5-0 | League Park I (3-3) | 45-32 | Won 7 |
| » Starters: Chief Bender vs Bob Rhoads | Third | 5 out |
| Friday, July 19 |
| » Lost to Tigers (45-32), 6-1 | Bennett Park (2-4) | 45-33 | |
| » Starters: Jimmy Dygert vs Bill Donovan | Fourth | 5½ out |
| Saturday, July 20 |
| » Lost to Tigers (46-32), 4-3 | Bennett Park (2-5) | 45-34 | Lost 2 |
| » Starters: Rube Waddell vs Ed Siever | Fourth | 5½ out |
| Monday, July 22 |
| » Lost to Tigers (47-32), 6-3 | Bennett Park (2-6) | 45-35 | Lost 3 |
| » Starters: Eddie Plank vs George Mullin | Fourth | 6 out |
| Wednesday, July 24 |
| » Defeated White Sox (53-32), 3-1 | Columbia Park (23-9) | 46-35 | |
| » Starters: Roy Patterson vs Rube Waddell | Fourth | 5 out |
| Thursday, July 25 |
| » Defeated White Sox (53-33), 2-0 | Columbia Park (24-9) | 47-35 | Won 2 |
| » Starters: Ed Walsh vs Chief Bender | Fourth | 3 out |
| » Defeated White Sox (53-34), 7-3 | Columbia Park (25-9) | 48-35 | Won 3 |
| » Starters: Doc White vs Jimmy Dygert | Fourth | 3 out |
| Friday, July 26 |
| » Defeated White Sox (53-35), 4-3 | Columbia Park (26-9) | 49-35 | Won 4 |
| » Starters: Nick Altrock vs Eddie Plank | Fourth | 2 out |
| Saturday, July 27 |
| » Lost to White Sox (54-35), 7-2 | Columbia Park (26-10) | 49-36 | |
| » Starters: Ed Walsh vs Rube Waddell | Fourth | 3 out |
| Monday, July 29 |
| » Major-league debuts: Harry Hinchman (Indians) |
| Tuesday, July 30 |
| » Defeated Browns (36-52), 2-1 | Columbia Park (27-10) | 50-36 | |
| » Starters: Jack Powell vs Chief Bender | Fourth | 2½ out |
| Wednesday, July 31 |
| » Defeated Browns (36-53), 8-7 | Columbia Park (28-10) | 51-36 | Won 2 |
| » Starters: Harry Howell vs Jimmy Dygert | Fourth | 2½ out |
| Thursday, August 1 |
| » Defeated Browns (36-54), 2-0 | Columbia Park (29-10) | 52-36 | Won 3 |
| » Starters: Bill Dinneen vs Eddie Plank | Third | 2½ out |
| Friday, August 2 |
| » Defeated Indians (54-39), 9-1 | Columbia Park (30-10) | 53-36 | Won 4 |
| » Starters: Bob Rhoads vs Chief Bender | Third | 1 out |
| Saturday, August 3 |
| » Lost to Indians (55-39), 5-3 | Columbia Park (30-11) | 53-37 | |
| » Starters: Glenn Liebhardt vs Rube Waddell | Third | 3 out |
| Monday, August 5 |
| » Defeated Indians (55-40), 6-2 | Columbia Park (31-11) | 54-37 | |
| » Starters: Addie Joss vs Eddie Plank | Third | 2 out |
| » Defeated Indians (55-41), 12-6 | Columbia Park (32-11) | 55-37 | Won 2 |
| » Starters: Bill Bernhard vs Bill Bartley | Third | 2 out |
| Tuesday, August 6 |
| » Defeated Indians (55-42), 4-2 | Columbia Park (33-11) | 56-37 | Won 3 |
| » Starters: Walter Clarkson vs Jimmy Dygert | Third | 1½ out |
| Wednesday, August 7 |
| » Defeated Tigers (57-36), 4-2 | Columbia Park (34-11) | 57-37 | Won 4 |
| » Starters: Ed Killian vs Chief Bender | Third | ½ out |
| Thursday, August 8 |
| » Lost to Tigers (58-36), 5-3 | Columbia Park (34-12) | 57-38 | |
| » Starters: George Mullin vs Eddie Plank | Third | 1½ out |
| Saturday, August 10 |
| » Defeated Tigers (58-37), 1-0 | Columbia Park (35-12) | 58-38 | |
| » Starters: Bill Donovan vs Chief Bender | Second | ½ out |
| Sunday, August 11 |
| Future Athletic Bobo Newsom is born in Hartsville, SC. |
| Monday, August 12 |
| » Defeated Tigers (58-38), 7-3 | Bennett Park (3-6) | 59-38 | Won 2 |
| » Starters: Rube Waddell vs Ed Siever | First | -- |
| Tuesday, August 13 |
| » Defeated Tigers (58-39), 3-0 | Bennett Park (4-6) | 60-38 | Won 3 |
| » Starters: Eddie Plank vs George Mullin | First | -- |
| Wednesday, August 14 |
| » Lost to Tigers (59-39), 9-2 | Bennett Park (4-7) | 60-39 | |
| » Starters: Rube Waddell vs Bill Donovan | First | -- |
| Thursday, August 15 |
| » Defeated Indians (59-45), 3-2 | League Park I (4-3) | 61-39 | |
| » Starters: Chief Bender vs Addie Joss | First | -- |
| Friday, August 16 |
| » Lost to Indians (60-45), 8-7 | League Park I (4-4) | 61-40 | |
| » Starters: Jack Coombs vs Glenn Liebhardt | First | -- |
| » Defeated Indians (60-46), 7-2 | League Park I (5-4) | 62-40 | |
| » Starters: Jimmy Dygert vs Walter Clarkson | First | -- |
| Saturday, August 17 |
| » Lost to Indians (61-46), 6-0 | League Park I (5-5) | 62-41 | |
| » Starters: Eddie Plank vs Bob Rhoads | First | -- |
| Monday, August 19 |
| » Defeated Indians (61-47), 10-8 | League Park I (6-5) | 63-41 | |
| » Starters: Rube Waddell vs Addie Joss | First | -- |
| Tuesday, August 20 |
| » Lost to White Sox (66-46), 4-1 | South Side Park III (3-6) | 63-42 | |
| » Starters: Eddie Plank vs Ed Walsh | First | -- |
| Wednesday, August 21 |
| » Lost to White Sox (67-46), 1-0 | South Side Park III (3-7) | 63-43 | Lost 2 |
| » Starters: Chief Bender vs Frank Smith | First | -- |
| Thursday, August 22 |
| » Defeated White Sox (67-47), 2-0 | South Side Park III (4-7) | 64-43 | |
| » Starters: Rube Waddell vs Ed Walsh | First | -- |
| Friday, August 23 |
| » Defeated Browns (45-63), 1-0 | Sportsman's Park II (5-2) | 65-43 | Won 2 |
| » Starters: Eddie Plank vs Jack Powell | First | -- |
| Saturday, August 24 |
| » Defeated Browns (45-64), 6-4 | Sportsman's Park II (6-2) | 66-43 | Won 3 |
| » Starters: Jack Coombs vs Bill Dinneen | First | -- |
| » Lost to Browns (46-64), 6-4 | Sportsman's Park II (6-3) | 66-44 | |
| » Starters: Chief Bender vs Fred Glade | First | -- |
| Sunday, August 25 |
| » Lost to Browns (47-64), 2-1 | Sportsman's Park II (6-4) | 66-45 | Lost 2 |
| » Starters: Jimmy Dygert vs Harry Howell | Second | 2½ out |
| » Defeated Browns (47-65), 1-0 | Sportsman's Park II (7-4) | 67-45 | |
| » Starters: Rube Waddell vs Barney Pelty | Second | 2½ out |
| Thursday, August 29 |
| » Lost to Yankees (54-60), 5-2 | Hilltop Park (3-5) | 67-46 | |
| » Starters: Eddie Plank vs Bill Hogg | Second | 2 out |
| Friday, August 30 |
| » Defeated Yankees (54-61), 6-3 | Hilltop Park (4-5) | 68-46 | |
| » Starters: Rube Waddell vs Slow Joe Doyle | Second | 1½ out |
| Saturday, August 31 |
| » Defeated Yankees (54-62), 3-0 | Hilltop Park (5-5) | 69-46 | Won 2 |
| » Starters: Chief Bender vs Jack Chesbro | Second | 1½ out |
| Monday, September 2 |
| » Lost to Senators (36-78), 3-1 | Columbia Park (35-13) | 69-47 | |
| » Starters: Charlie Smith vs Jack Coombs | Second | 1 out |
| » Defeated Senators (36-79), 3-2 | Columbia Park (36-13) | 70-47 | |
| » Starters: Walter Johnson vs Eddie Plank | Second | 1 out |
| Tuesday, September 3 |
| » Defeated Senators (36-80), 15-6 | Columbia Park (37-13) | 71-47 | Won 2 |
| » Starters: Frank Oberlin vs Jimmy Dygert | Second | ½ out |
| » Defeated Senators (36-81), 9-1 | Columbia Park (38-13) | 72-47 | Won 3 |
| » Starters: Cy Falkenberg vs Rube Waddell | Second | ½ out |
| » Major-league debuts: John McDonald (Senators) |
| Wednesday, September 4 |
| » Defeated Yankees (55-65), 4-2 | Columbia Park (39-13) | 73-47 | Won 4 |
| » Starters: Jack Chesbro vs Chief Bender | First | -- |
| Thursday, September 5 |
| » Lost to Yankees (56-65), 6-3 | Columbia Park (39-14) | 73-48 | |
| » Starters: Slow Joe Doyle vs Jack Coombs | First | -- |
| » Tied Yankees, 2-2 | Columbia Park (39-14) | 73-48 | |
| » Starters: Jack Chesbro vs Bill Bartley | First | -- |
| Friday, September 6 |
| » Defeated Yankees (56-66), 6-4 | Columbia Park (40-14) | 74-48 | |
| » Starters: Al Orth vs Eddie Plank | First | -- |
| » Defeated Yankees (56-67), 6-2 | Columbia Park (41-14) | 75-48 | Won 2 |
| » Starters: Bill Hogg vs Jimmy Dygert | First | -- |
| Saturday, September 7 |
| » Defeated Yankees (56-68), 8-3 | Columbia Park (42-14) | 76-48 | Won 3 |
| » Starters: Doc Newton vs Chief Bender | First | -- |
| Monday, September 9 |
| » Tied Red Sox, 0-0 | Huntington Ave Baseball Grounds (4-4) | 76-48 | |
| » Starters: Rube Waddell vs Cy Young | First | -- |
| Tuesday, September 10 |
| » Lost to Red Sox (57-72), 5-0 | Huntington Ave Baseball Grounds (4-5) | 76-49 | |
| » Starters: Jimmy Dygert vs George Winter | First | -- |
| » Defeated Red Sox (57-73), 3-0 | Huntington Ave Baseball Grounds (5-5) | 77-49 | |
| » Starters: Eddie Plank vs Ralph Glaze | First | -- |
| Wednesday, September 11 |
| » Lost to Red Sox (58-73), 5-4 | Huntington Ave Baseball Grounds (5-6) | 77-50 | |
| » Starters: Chief Bender vs Cy Morgan | First | -- |
| Thursday, September 12 |
| » Defeated Red Sox (58-74), 7-1 | Columbia Park (43-14) | 78-50 | |
| » Starters: Tex Pruiett vs Jimmy Dygert | First | -- |
| » Major-league debuts: Elmer Steele (Red Sox) |
| Friday, September 13 |
| » Tied Red Sox, 6-6 | Columbia Park (43-14) | 78-50 | |
| » Starters: George Winter vs Rube Waddell | First | -- |
| » Major-league debuts: George Whiteman (Red Sox) |
| Saturday, September 14 |
| » Defeated Red Sox (58-75), 7-6 | Columbia Park (44-14) | 79-50 | Won 2 |
| » Starters: Cy Young vs Chief Bender | First | -- |
| » Defeated Red Sox (58-76), 5-2 | Columbia Park (45-14) | 80-50 | Won 3 |
| » Starters: Cy Morgan vs Jimmy Dygert | First | -- |
| » Major-league debuts: Tris Speaker (Red Sox) |
| Monday, September 16 |
| » Lost to Yankees (63-70), 3-2 | Columbia Park (45-15) | 80-51 | |
| » Starters: Jack Chesbro vs Eddie Plank | First | -- |
| Tuesday, September 17 |
| » Lost to Yankees (64-70), 11-3 | Columbia Park (45-16) | 80-52 | Lost 2 |
| » Starters: Bill Hogg vs Jack Coombs | First | -- |
| » Major-league debuts: Walter Blair (Yankees) |
| Friday, September 20 |
| » Lost to Browns (59-79), 4-1 | Columbia Park (45-17) | 80-53 | Lost 3 |
| » Starters: Jack Powell vs Rube Waddell | First | -- |
| Saturday, September 21 |
| » Defeated Browns (59-80), 6-0 | Columbia Park (46-17) | 81-53 | |
| » Starters: Bill Dinneen vs Eddie Plank | First | -- |
| Monday, September 23 |
| Former Athletic Charlie Buffinton dies in Fall River, MA at the age of 47. |
| Tuesday, September 24 |
| » Lost to White Sox (84-58), 8-3 | Columbia Park (46-18) | 81-54 | |
| » Starters: Ed Walsh vs Rube Waddell | Second | 2½ out |
| Wednesday, September 25 |
| » Defeated White Sox (84-59), 5-0 | Columbia Park (47-18) | 82-54 | |
| » Starters: Frank Smith vs Eddie Plank | Second | 2½ out |
| Thursday, September 26 |
| » Defeated White Sox (84-60), 3-1 | Columbia Park (48-18) | 83-54 | Won 2 |
| » Starters: Ed Walsh vs Jimmy Dygert | Second | 2½ out |
| Friday, September 27 |
| » Lost to Tigers (87-56), 5-4 | Columbia Park (48-19) | 83-55 | |
| » Starters: Bill Donovan vs Eddie Plank | Second | 2½ out |
| Monday, September 30 |
| » Tied Tigers, 9-9 | Columbia Park (48-19) | 83-55 | |
| » Starters: Bill Donovan vs Jimmy Dygert | Second | 2½ out |
| Tuesday, October 1 |
| » Defeated Indians (83-65), 4-0 | Columbia Park (49-19) | 84-55 | |
| » Starters: Heinie Berger vs Jimmy Dygert | Second | 2½ out |
| Wednesday, October 2 |
| » Lost to Indians (84-65), 4-3 | Columbia Park (49-20) | 84-56 | |
| » Starters: Jake Thielman vs Eddie Plank | Second | 3 out |
| Thursday, October 3 |
| » Defeated Indians (84-66), 4-0 | Columbia Park (50-20) | 85-56 | |
| » Starters: Walter Clarkson vs Jimmy Dygert | Second | 3 out |
| Friday, October 4 |
| » Lost to Senators (49-99), 2-1 | American League Park II (4-3) | 85-57 | |
| » Starters: Eddie Plank vs Walter Johnson | Second | 3 out |
| » Defeated Senators (49-100), 8-0 | American League Park II (5-3) | 86-57 | |
| » Starters: Jimmy Dygert vs Tom Hughes | Second | 3 out |
| Saturday, October 5 |
| » Defeated Senators (49-101), 4-2 | American League Park II (6-3) | 87-57 | Won 2 |
| » Starters: Charlie Fritz vs Charlie Smith | Second | 2½ out |
| » Defeated Senators (49-102), 4-0 | American League Park II (7-3) | 88-57 | Won 3 |
| » Starters: Rube Vickers vs Cy Falkenberg | Second | 2½ out |
| » Major-league debuts: Charlie Fritz (Athletics) |
| Tuesday, October 22 |
| Future Athletic Jimmie Foxx is born in Sudlersville, MD. |
Game information provided by Retrosheet (www.retrosheet.org) |