| 1987-04-06 | vs NYA | 1 | L 1-2 | 0-1 | 7 | 51,315 | Jack Morris | Dennis Rasmussen | Dave Righetti | Jack Morris | | 1 | 2 | -1 |
| 1987-04-08 | vs NYA | 2 | L 5-6 | 0-2 | 7 | 12,271 | Dan Petry | Tommy John | Charles Hudson | Guillermo Hernandez | Dave Righetti | 6 | 8 | -2 |
| 1987-04-09 | vs NYA | 3 | W 9-3 | 1-2 | 6 | 12,228 | Walt Terrell | Bob Tewksbury | Walt Terrell | Bob Tewksbury | | 15 | 11 | 4 |
| 1987-04-10 | @ CHA | 4 | W 11-4 | 2-2 | 3 | 40,025 | Frank Tanana | Neil Allen | Frank Tanana | Neil Allen | | 26 | 15 | 11 |
| 1987-04-11 | @ CHA | 5 | W 7-1 | 3-2 | 3 | 12,896 | Jack Morris | Richard Dotson | Jack Morris | Richard Dotson | | 33 | 16 | 17 |
| 1987-04-12 | @ CHA | 6 | W 7-1 | 4-2 | 3 | 13,245 | Jeff Robinson | Joel Davis | Jeff Robinson | Joel Davis | | 40 | 17 | 23 |
| 1987-04-14 | @ KCA | 7 | L 1-10 | 4-3 | 4 | 16,023 | Dan Petry | Mark Gubicza | Mark Gubicza | Dan Petry | | 41 | 27 | 14 |
| 1987-04-15 | @ KCA | 8 | L 1-2 | 4-4 | 5 | 18,721 | Walt Terrell | Bret Saberhagen | Bret Saberhagen | Walt Terrell | Buddy Black | 42 | 29 | 13 |
| 1987-04-17 | vs CHA | 9 | W 3-1 | 5-4 | 5 | 16,953 | Frank Tanana | Richard Dotson | Frank Tanana | Richard Dotson | Mark Thurmond | 45 | 30 | 15 |
| 1987-04-18 | vs CHA | 10 | W 3-2 | 6-4 | 4 | 20,607 | Jeff Robinson | Neil Allen | Eric King | Bobby Thigpen | | 48 | 32 | 16 |
| 1987-04-19 | vs CHA | 11 | L 2-7 | 6-5 | 3 | 14,269 | Dan Petry | Floyd Bannister | Floyd Bannister | Dan Petry | | 50 | 39 | 11 |
| 1987-04-20 | @ NYA | 12 | L 2-8 | 6-6 | 5 | 20,111 | Jack Morris | Rick Rhoden | Rick Rhoden | Jack Morris | Dave Righetti | 52 | 47 | 5 |
| 1987-04-21 | @ NYA | 13 | L 1-3 | 6-7 | 6 | 25,148 | Walt Terrell | Joe Niekro | Joe Niekro | Walt Terrell | Cecilio Guante | 53 | 50 | 3 |
| 1987-04-22 | @ NYA | 14 | L 1-4 | 6-8 | 6 | 21,091 | Frank Tanana | Bob Shirley | Bob Shirley | Frank Tanana | Dave Righetti | 54 | 54 | 0 |
| 1987-04-24 | vs KCA | 15 | L 3-7 | 6-9 | 6 | 14,449 | Dan Petry | Charlie Leibrandt | Charlie Leibrandt | Dan Petry | | 57 | 61 | -4 |
| 1987-04-25 | vs KCA | 16 | W 13-2 | 7-9 | 6 | 18,052 | Jack Morris | Mark Gubicza | Jack Morris | Mark Gubicza | | 70 | 63 | 7 |
| 1987-04-26 | vs KCA | 17 | L 1-6 | 7-10 | 6 | 16,686 | Walt Terrell | Bret Saberhagen | Bret Saberhagen | Walt Terrell | | 71 | 69 | 2 |
| 1987-04-27 | @ SEA | 18 | L 2-5 | 7-11 | 6 | 8,492 | Frank Tanana | Mark Langston | Mark Langston | Eric King | Ed Nunez | 73 | 74 | -1 |
| 1987-04-28 | @ SEA | 19 | L 4-6 | 7-12 | 6 | 7,393 | Jeff Robinson | Mike Morgan | Mike Morgan | Jeff Robinson | Ed Nunez | 77 | 80 | -3 |
| 1987-04-29 | @ CAL | 20 | W 2-1 | 8-12 | 6 | 26,126 | Dan Petry | Don Sutton | Eric King | Donnie Moore | | 79 | 81 | -2 |
| 1987-04-30 | @ CAL | 21 | W 12-4 | 9-12 | 5 | 27,656 | Jack Morris | Willie Fraser | Jack Morris | Willie Fraser | | 91 | 85 | 6 |
| 1987-05-01 | @ OAK | 22 | L 1-2 | 9-13 | 6 | 14,035 | Walt Terrell | Moose Haas | Dennis Eckersley | Bryan Kelly | | 92 | 87 | 5 |
| 1987-05-02 | @ OAK | 23 | L 2-3 | 9-14 | 6 | 17,753 | Frank Tanana | Curt Young | Dave Leiper | Nate Snell | | 94 | 90 | 4 |
| 1987-05-03 | @ OAK | 24 | L 0-2 | 9-15 | 6 | 21,810 | Eric King | Eric Plunk | Eric Plunk | Eric King | Jay Howell | 94 | 92 | 2 |
| 1987-05-05 | vs SEA | 25 | L 5-7 | 9-16 | 6 | 10,918 | Jack Morris | Mike Moore | Stan Clarke | Jeff Robinson | Ed Nunez | 99 | 99 | 0 |
| 1987-05-06 | vs SEA | 26 | W 7-5 | 10-16 | 6 | 13,718 | Walt Terrell | Scott Bankhead | Walt Terrell | Scott Bankhead | Mark Thurmond | 106 | 104 | 2 |
| 1987-05-08 | vs OAK | 27 | L 2-7 | 10-17 | 6 | 13,949 | Frank Tanana | Curt Young | Curt Young | Frank Tanana | | 108 | 111 | -3 |
| 1987-05-09 | vs OAK | 28 | L 7-8 | 10-18 | 6 | 15,685 | Eric King | Eric Plunk | Gene Nelson | Mark Thurmond | Jay Howell | 115 | 119 | -4 |
| 1987-05-10 | vs OAK | 29 | W 7-6 | 11-18 | 6 | 14,114 | Jack Morris | Moose Haas | Nate Snell | Steve Ontiveros | | 122 | 125 | -3 |
| 1987-05-11 | vs CAL | 30 | L 1-5 | 11-19 | 6 | 11,079 | Walt Terrell | Mike Witt | Mike Witt | Walt Terrell | DeWayne Buice | 123 | 130 | -7 |
| 1987-05-12 | vs CAL | 31 | W 15-2 | 12-19 | 6 | 11,579 | Dan Petry | Urbano Lugo | Dan Petry | Urbano Lugo | | 138 | 132 | 6 |
| 1987-05-13 | vs CAL | 32 | W 10-7 | 13-19 | 6 | 11,659 | Frank Tanana | John Candelaria | Frank Tanana | John Candelaria | | 148 | 139 | 9 |
| 1987-05-15 | vs CLE | 33 | W 4-3 | 14-19 | 6 | 17,525 | Eric King | Greg Swindell | Mike Henneman | Mark Huismann | | 152 | 142 | 10 |
| 1987-05-16 | vs CLE | 34 | W 5-3 | 15-19 | 6 | 20,583 | Jack Morris | Phil Niekro | Jack Morris | Phil Niekro | | 157 | 145 | 12 |
| 1987-05-17 | vs CLE | 35 | W 8-4 | 16-19 | 5 | 20,824 | Walt Terrell | Steve Carlton | Walt Terrell | Steve Carlton | | 165 | 149 | 16 |
| 1987-05-18 | @ TEX | 36 | W 6-3 | 17-19 | 5 | 26,503 | Jeff Robinson | Jose Guzman | Jeff Robinson | Jose Guzman | Mark Thurmond | 171 | 152 | 19 |
| 1987-05-19 | @ TEX | 37 | L 8-10 | 17-20 | 5 | 17,484 | Frank Tanana | Ed Correa | Dale Mohorcic | Eric King | | 179 | 162 | 17 |
| 1987-05-20 | @ TEX | 38 | W 6-4 | 18-20 | 5 | 16,820 | Dan Petry | Bobby Witt | Dan Petry | Bobby Witt | Eric King | 185 | 166 | 19 |
| 1987-05-22 | @ MIN | 39 | W 3-2 | 19-20 | 5 | 15,423 | Jack Morris | Frank Viola | Jack Morris | Frank Viola | Eric King | 188 | 168 | 20 |
| 1987-05-23 | @ MIN | 40 | L 5-7 | 19-21 | 5 | 18,601 | Walt Terrell | Allan Anderson | Allan Anderson | Walt Terrell | Jeff Reardon | 193 | 175 | 18 |
| 1987-05-24 | @ MIN | 41 | W 7-2 | 20-21 | 5 | 16,351 | Jeff Robinson | Les Straker | Jeff Robinson | Keith Atherton | | 200 | 177 | 23 |
| 1987-05-25 | vs TEX | 42 | W 8-5 | 21-21 | 5 | 13,824 | Frank Tanana | Ed Correa | Frank Tanana | Ed Correa | Mike Henneman | 208 | 182 | 26 |
| 1987-05-26 | vs TEX | 43 | W 8-7 | 22-21 | 5 | 11,234 | Dan Petry | Bob Malloy | Mike Henneman | Dale Mohorcic | | 216 | 189 | 27 |
| 1987-05-27 | vs TEX | 44 | W 4-3 | 23-21 | 5 | 12,696 | Jack Morris | Mike Loynd | Jack Morris | Mike Loynd | Mark Thurmond | 220 | 192 | 28 |
| 1987-05-29 | vs MIN | 45 | W 15-7 | 24-21 | 4 | 19,031 | Walt Terrell | Les Straker | Walt Terrell | Les Straker | | 235 | 199 | 36 |
| 1987-05-31 | vs MIN | 46 | L 5-9 | 24-23 | 5 | 0 | Jeff Robinson | Bert Blyleven | Jeff Reardon | Eric King | | 240 | 208 | 32 |
| 1987-05-31 | vs MIN | 47 | L 3-11 | 24-23 | 5 | 20,993 | Frank Tanana | Allan Anderson | George Frazier | Frank Tanana | | 243 | 219 | 24 |
| 1987-06-01 | @ CLE | 48 | L 6-9 | 24-24 | 5 | 6,509 | Dan Petry | Phil Niekro | Phil Niekro | Dan Petry | Scott Bailes | 249 | 228 | 21 |
| 1987-06-03 | @ CLE | 49 | W 15-3 | 25-24 | 5 | 8,226 | Jack Morris | Ken Schrom | Jack Morris | Ken Schrom | | 264 | 231 | 33 |
| 1987-06-04 | @ BOS | 50 | L 5-8 | 25-25 | 5 | 24,660 | Walt Terrell | Bruce Hurst | Bruce Hurst | Walt Terrell | | 269 | 239 | 30 |
| 1987-06-05 | @ BOS | 51 | W 4-2 | 26-25 | 4 | 33,827 | Jeff Robinson | Al Nipper | Jeff Robinson | Al Nipper | Eric King | 273 | 241 | 32 |
| 1987-06-06 | @ BOS | 52 | W 5-3 | 27-25 | 4 | 33,902 | Frank Tanana | Roger Clemens | Eric King | Wes Gardner | | 278 | 244 | 34 |
| 1987-06-07 | @ BOS | 53 | W 18-8 | 28-25 | 4 | 33,254 | Dan Petry | John Leister | Mike Henneman | John Leister | | 296 | 252 | 44 |
| 1987-06-09 | vs MIL | 54 | W 8-5 | 29-25 | 4 | 16,645 | Jack Morris | Teddy Higuera | Jack Morris | Teddy Higuera | | 304 | 257 | 47 |
| 1987-06-10 | vs MIL | 55 | L 5-8 | 29-26 | 4 | 16,998 | Walt Terrell | Len Barker | Dan Plesac | Eric King | | 309 | 265 | 44 |
| 1987-06-11 | vs MIL | 56 | L 5-8 | 29-27 | 4 | 20,780 | Jeff Robinson | Bill Wegman | Bill Wegman | Eric King | Chris Bosio | 314 | 273 | 41 |
| 1987-06-12 | vs BOS | 57 | W 11-4 | 30-27 | 4 | 32,341 | Frank Tanana | Roger Clemens | Frank Tanana | Roger Clemens | | 325 | 277 | 48 |
| 1987-06-13 | vs BOS | 58 | W 6-4 | 31-27 | 4 | 40,427 | Dan Petry | Bob Stanley | Dan Petry | Steve Crawford | Guillermo Hernandez | 331 | 281 | 50 |
| 1987-06-14 | vs BOS | 59 | W 2-1 | 32-27 | 4 | 28,203 | Jack Morris | Bruce Hurst | Jack Morris | Bruce Hurst | | 333 | 282 | 51 |
| 1987-06-15 | @ TOR | 60 | W 2-1 | 33-27 | 3 | 36,225 | Walt Terrell | Jimmy Key | Walt Terrell | Jimmy Key | Eric King | 335 | 283 | 52 |
| 1987-06-16 | @ TOR | 61 | L 4-10 | 33-28 | 3 | 36,398 | Jeff Robinson | Joe Johnson | Gary Lavelle | Jeff Robinson | | 339 | 293 | 46 |
| 1987-06-17 | @ TOR | 62 | W 3-2 | 34-28 | 3 | 46,227 | Frank Tanana | Jim Clancy | Frank Tanana | Jim Clancy | Guillermo Hernandez | 342 | 295 | 47 |
| 1987-06-19 | @ BAL | 63 | W 5-3 | 35-28 | 3 | 31,672 | Jack Morris | Dave J. Schmidt | Jack Morris | Mark Williamson | Guillermo Hernandez | 347 | 298 | 49 |
| 1987-06-20 | @ BAL | 64 | L 5-9 | 35-29 | 3 | 27,240 | Walt Terrell | Eric Bell | Eric Bell | Walt Terrell | Tom Niedenfuer | 352 | 307 | 45 |
| 1987-06-21 | @ BAL | 65 | W 9-3 | 36-29 | 3 | 28,845 | Dan Petry | Ken Dixon | Dan Petry | Ken Dixon | Eric King | 361 | 310 | 51 |
| 1987-06-22 | vs TOR | 66 | W 2-0 | 37-29 | 3 | 28,978 | Frank Tanana | Jim Clancy | Frank Tanana | Jim Clancy | | 363 | 310 | 53 |
| 1987-06-23 | vs TOR | 67 | L 7-8 | 37-30 | 3 | 29,275 | Jeff Robinson | Dave Stieb | Dave Stieb | Jeff Robinson | Tom Henke | 370 | 318 | 52 |
| 1987-06-24 | vs TOR | 68 | L 3-5 | 37-31 | 3 | 34,866 | Jack Morris | John Cerutti | John Cerutti | Jack Morris | Jeff Musselman | 373 | 323 | 50 |
| 1987-06-26 | vs BAL | 69 | W 9-0 | 38-31 | 3 | 29,396 | Walt Terrell | Mike Griffin | Walt Terrell | Mike Griffin | | 382 | 323 | 59 |
| 1987-06-27 | vs BAL | 70 | L 2-4 | 38-32 | 3 | 32,395 | Frank Tanana | Mike Boddicker | Tom Niedenfuer | Frank Tanana | | 384 | 327 | 57 |
| 1987-06-28 | vs BAL | 71 | W 8-7 | 39-32 | 3 | 31,606 | Jeff Robinson | Eric Bell | Guillermo Hernandez | Doug Corbett | | 392 | 334 | 58 |
| 1987-06-29 | @ MIL | 72 | W 11-1 | 40-32 | 3 | 21,487 | Jack Morris | Chris Bosio | Jack Morris | Chris Bosio | | 403 | 335 | 68 |
| 1987-06-30 | @ MIL | 73 | W 8-5 | 41-32 | 3 | 21,609 | Dan Petry | Mark Clear | Dan Petry | Mark Clear | Guillermo Hernandez | 411 | 340 | 71 |
| 1987-07-01 | @ MIL | 74 | L 2-13 | 41-33 | 3 | 24,528 | Walt Terrell | Bill Wegman | Bill Wegman | Walt Terrell | | 413 | 353 | 60 |
| 1987-07-02 | @ SEA | 75 | L 2-5 | 41-34 | 3 | 10,646 | Frank Tanana | Lee Guetterman | Lee Guetterman | Frank Tanana | | 415 | 358 | 57 |
| 1987-07-03 | @ SEA | 76 | W 5-2 | 42-34 | 3 | 13,568 | Jeff Robinson | Mike Moore | Jeff Robinson | Mike Moore | Eric King | 420 | 360 | 60 |
| 1987-07-04 | @ SEA | 77 | W 7-3 | 43-34 | 3 | 16,884 | Jack Morris | Mike Campbell | Jack Morris | Mike Campbell | | 427 | 363 | 64 |
| 1987-07-05 | @ SEA | 78 | W 7-5 | 44-34 | 2 | 13,232 | Dan Petry | Mark Langston | Dan Petry | Mark Langston | Mike Henneman | 434 | 368 | 66 |
| 1987-07-06 | @ OAK | 79 | L 3-5 | 44-35 | 3 | 14,656 | Walt Terrell | Dennis Lamp | Gene Nelson | Eric King | Jay Howell | 437 | 373 | 64 |
| 1987-07-07 | @ OAK | 80 | W 6-4 | 45-35 | 3 | 17,174 | Frank Tanana | Joaquin Andujar | Frank Tanana | Joaquin Andujar | Guillermo Hernandez | 443 | 377 | 66 |
| 1987-07-08 | @ OAK | 81 | W 9-5 | 46-35 | 3 | 20,031 | Jeff Robinson | Steve Ontiveros | Jeff Robinson | Steve Ontiveros | Mark Thurmond | 452 | 382 | 70 |
| 1987-07-09 | @ CAL | 82 | L 2-5 | 46-36 | 3 | 30,966 | Jack Morris | Don Sutton | Don Sutton | Jack Morris | Greg Minton | 454 | 387 | 67 |
| 1987-07-10 | @ CAL | 83 | W 9-4 | 47-36 | 3 | 31,073 | Dan Petry | Jack Lazorko | Eric King | Jack Lazorko | | 463 | 391 | 72 |
| 1987-07-11 | @ CAL | 84 | W 12-5 | 48-36 | 3 | 44,219 | Walt Terrell | Jerry Reuss | Mike Henneman | Jerry Reuss | | 475 | 396 | 79 |
| 1987-07-12 | @ CAL | 85 | L 4-5 | 48-37 | 3 | 42,682 | Frank Tanana | Mike Witt | Mike Witt | Frank Tanana | Greg Minton | 479 | 401 | 78 |
| 1987-07-16 | vs SEA | 86 | W 3-2 | 49-37 | 3 | 20,488 | Walt Terrell | Mike Moore | Walt Terrell | Mike Moore | | 482 | 403 | 79 |
| 1987-07-17 | vs SEA | 87 | W 7-0 | 50-37 | 3 | 24,669 | Frank Tanana | Mark Langston | Frank Tanana | Mark Langston | | 489 | 403 | 86 |
| 1987-07-18 | vs SEA | 88 | W 10-6 | 51-37 | 3 | 31,594 | Dan Petry | Lee Guetterman | Mike Henneman | Jerry Reed | Eric King | 499 | 409 | 90 |
| 1987-07-19 | vs SEA | 89 | L 4-5 | 51-38 | 3 | 23,577 | Jack Morris | Scott Bankhead | Ed Nunez | Guillermo Hernandez | | 503 | 414 | 89 |
| 1987-07-20 | vs OAK | 90 | W 5-4 | 52-38 | 3 | 22,692 | Jeff Robinson | Curt Young | Mike Henneman | Gene Nelson | | 508 | 418 | 90 |
| 1987-07-21 | vs OAK | 91 | W 6-5 | 53-38 | 2 | 23,118 | Walt Terrell | Dave Stewart | Eric King | Jay Howell | | 514 | 423 | 91 |
| 1987-07-22 | vs OAK | 92 | L 1-10 | 53-39 | 2 | 24,855 | Frank Tanana | Dennis Lamp | Dennis Lamp | Frank Tanana | | 515 | 433 | 82 |
| 1987-07-24 | vs CAL | 93 | W 6-3 | 54-39 | 3 | 33,275 | Jack Morris | Don Sutton | Mike Henneman | Chuck Finley | | 521 | 436 | 85 |
| 1987-07-25 | vs CAL | 94 | W 5-4 | 55-39 | 2 | 34,973 | Dan Petry | Jerry Reuss | Mike Henneman | Greg Minton | | 526 | 440 | 86 |
| 1987-07-26 | vs CAL | 95 | W 6-2 | 56-39 | 2 | 31,339 | Walt Terrell | Willie Fraser | Walt Terrell | Willie Fraser | | 532 | 442 | 90 |
| 1987-07-27 | vs CHA | 96 | W 4-1 | 57-39 | 2 | 23,704 | Frank Tanana | Scott Nielsen | Frank Tanana | Scott Nielsen | | 536 | 443 | 93 |
| 1987-07-28 | vs CHA | 97 | W 3-1 | 58-39 | 2 | 26,156 | Jeff Robinson | Bill Long | Jeff Robinson | Bill Long | | 539 | 444 | 95 |
| 1987-07-29 | vs CHA | 98 | L 0-4 | 58-40 | 2 | 28,918 | Jack Morris | Floyd Bannister | Floyd Bannister | Jack Morris | | 539 | 448 | 91 |
| 1987-07-31 | @ NYA | 99 | L 5-6 | 58-41 | 3 | 50,214 | Walt Terrell | Ron Guidry | Dave Righetti | Mike Henneman | | 544 | 454 | 90 |
| 1987-08-01 | @ NYA | 100 | W 10-5 | 59-41 | 2 | 55,103 | Frank Tanana | Dennis Rasmussen | Frank Tanana | Dennis Rasmussen | | 554 | 459 | 95 |
| 1987-08-02 | @ NYA | 101 | L 5-8 | 59-42 | 3 | 46,212 | Jeff Robinson | Rick Rhoden | Rick Rhoden | Jeff Robinson | Dave Righetti | 559 | 467 | 92 |
| 1987-08-03 | vs KCA | 102 | L 2-4 | 59-43 | 3 | 25,781 | Jack Morris | Buddy Black | Jerry Gleaton | Jack Morris | | 561 | 471 | 90 |
| 1987-08-04 | vs KCA | 103 | L 4-8 | 59-44 | 3 | 23,330 | Dan Petry | Danny Jackson | Danny Jackson | Dan Petry | | 565 | 479 | 86 |
| 1987-08-05 | vs KCA | 104 | W 4-2 | 60-44 | 3 | 21,584 | Walt Terrell | Bret Saberhagen | Walt Terrell | Bret Saberhagen | | 569 | 481 | 88 |
| 1987-08-06 | vs NYA | 105 | W 12-5 | 61-44 | 3 | 41,875 | Frank Tanana | Ron Guidry | Frank Tanana | Ron Guidry | | 581 | 486 | 95 |
| 1987-08-07 | vs NYA | 106 | W 8-0 | 62-44 | 3 | 48,262 | Jeff Robinson | Rick Rhoden | Jeff Robinson | Rick Rhoden | | 589 | 486 | 103 |
| 1987-08-08 | vs NYA | 107 | L 0-7 | 62-45 | 3 | 45,812 | Eric King | Tommy John | Tommy John | Eric King | | 589 | 493 | 96 |
| 1987-08-09 | vs NYA | 108 | W 15-4 | 63-45 | 3 | 44,673 | Dan Petry | Dennis Rasmussen | Dan Petry | Dennis Rasmussen | | 604 | 497 | 107 |
| 1987-08-10 | @ CHA | 109 | L 4-8 | 63-46 | 3 | 16,068 | Walt Terrell | Richard Dotson | Richard Dotson | Walt Terrell | | 608 | 505 | 103 |
| 1987-08-11 | @ CHA | 110 | W 9-6 | 64-46 | 2 | 14,567 | Frank Tanana | Scott Nielsen | Frank Tanana | Scott Nielsen | Guillermo Hernandez | 617 | 511 | 106 |
| 1987-08-12 | @ CHA | 111 | W 8-7 | 65-46 | 2 | 16,438 | Jeff Robinson | Dave LaPoint | Guillermo Hernandez | Bobby Thigpen | | 625 | 518 | 107 |
| 1987-08-13 | @ KCA | 112 | W 4-1 | 66-46 | 2 | 38,221 | Jack Morris | Mark Gubicza | Jack Morris | Mark Gubicza | | 629 | 519 | 110 |
| 1987-08-14 | @ KCA | 113 | L 5-7 | 66-47 | 2 | 38,749 | Walt Terrell | Buddy Black | Buddy Black | Walt Terrell | Dan Quisenberry | 634 | 526 | 108 |
| 1987-08-15 | @ KCA | 114 | W 8-4 | 67-47 | 2 | 40,425 | Doyle Alexander | Danny Jackson | Eric King | Danny Jackson | Mike Henneman | 642 | 530 | 112 |
| 1987-08-16 | @ KCA | 115 | W 10-6 | 68-47 | 2 | 33,006 | Frank Tanana | Bret Saberhagen | Jeff Robinson | Jerry Gleaton | | 652 | 536 | 116 |
| 1987-08-18 | vs MIN | 116 | W 11-2 | 69-47 | 2 | 32,053 | Jack Morris | Steve Carlton | Jack Morris | Steve Carlton | | 663 | 538 | 125 |
| 1987-08-19 | vs MIN | 117 | W 7-1 | 70-47 | 1 | 38,163 | Walt Terrell | Bert Blyleven | Walt Terrell | Bert Blyleven | | 670 | 539 | 131 |
| 1987-08-20 | vs MIN | 118 | W 8-0 | 71-47 | 1 | 45,804 | Doyle Alexander | Joe Niekro | Doyle Alexander | Joe Niekro | | 678 | 539 | 139 |
| 1987-08-21 | @ CLE | 119 | L 4-12 | 71-49 | 1 | 0 | Dan Petry | Rich Yett | Jamie Easterly | Dan Petry | Don Gordon | 682 | 551 | 131 |
| 1987-08-21 | @ CLE | 120 | L 3-8 | 71-49 | 1 | 20,965 | Frank Tanana | John Farrell | John Farrell | Frank Tanana | | 685 | 559 | 126 |
| 1987-08-22 | @ CLE | 121 | W 8-6 | 72-49 | 1 | 20,148 | Jeff Robinson | Scott Bailes | Mike Henneman | Scott Bailes | Eric King | 693 | 565 | 128 |
| 1987-08-23 | @ CLE | 122 | W 4-3 | 73-49 | 1 | 21,097 | Jack Morris | Tom Candiotti | Jack Morris | Tom Candiotti | | 697 | 568 | 129 |
| 1987-08-24 | @ MIN | 123 | L 4-5 | 73-50 | 1 | 27,338 | Walt Terrell | Bert Blyleven | Jeff Reardon | Eric King | | 701 | 573 | 128 |
| 1987-08-25 | @ MIN | 124 | W 5-4 | 74-50 | 1 | 30,639 | Doyle Alexander | Joe Niekro | Doyle Alexander | Joe Niekro | Mike Henneman | 706 | 577 | 129 |
| 1987-08-26 | @ MIN | 125 | W 10-8 | 75-50 | 1 | 29,265 | Frank Tanana | Frank Viola | Dan Petry | Jeff Reardon | Guillermo Hernandez | 716 | 585 | 131 |
| 1987-08-28 | vs TEX | 126 | L 3-5 | 75-51 | 1 | 32,362 | Jack Morris | Jeff Russell | Mitch Williams | Jack Morris | Dale Mohorcic | 719 | 590 | 129 |
| 1987-08-29 | vs TEX | 127 | W 4-1 | 76-51 | 1 | 41,604 | Walt Terrell | Bobby Witt | Walt Terrell | Bobby Witt | | 723 | 591 | 132 |
| 1987-08-30 | vs TEX | 128 | W 7-0 | 77-51 | 1 | 38,641 | Doyle Alexander | Charlie Hough | Doyle Alexander | Charlie Hough | | 730 | 591 | 139 |
| 1987-08-31 | vs CLE | 129 | L 2-7 | 77-52 | 1 | 22,530 | Frank Tanana | John Farrell | John Farrell | Frank Tanana | | 732 | 598 | 134 |
| 1987-09-01 | vs CLE | 130 | W 6-5 | 78-52 | 1 | 19,810 | Jeff Robinson | Darrel Akerfelds | Guillermo Hernandez | Don Gordon | | 738 | 603 | 135 |
| 1987-09-02 | vs CLE | 131 | W 2-1 | 79-52 | 1 | 20,516 | Jack Morris | Tom Candiotti | Jack Morris | Tom Candiotti | | 740 | 604 | 136 |
| 1987-09-03 | vs CLE | 132 | W 3-1 | 80-52 | 1 | 21,964 | Walt Terrell | Rich Yett | Walt Terrell | Rich Yett | | 743 | 605 | 138 |
| 1987-09-04 | @ TEX | 133 | W 11-2 | 81-52 | 1 | 16,095 | Doyle Alexander | Charlie Hough | Doyle Alexander | Charlie Hough | | 754 | 607 | 147 |
| 1987-09-05 | @ TEX | 134 | L 7-8 | 81-53 | 1 | 26,058 | Frank Tanana | Greg Harris | Steve Howe | Guillermo Hernandez | | 761 | 615 | 146 |
| 1987-09-06 | @ TEX | 135 | L 3-9 | 81-54 | 2 | 22,374 | Jeff Robinson | Jose Guzman | Jose Guzman | Jeff Robinson | | 764 | 624 | 140 |
| 1987-09-07 | @ BAL | 136 | W 12-4 | 82-54 | 2 | 13,651 | Jack Morris | Jeff Ballard | Jack Morris | Jeff Ballard | | 776 | 628 | 148 |
| 1987-09-09 | @ BAL | 137 | W 7-4 | 84-54 | 1 | 0 | Walt Terrell | Ken Dixon | Walt Terrell | Ken Dixon | Guillermo Hernandez | 783 | 632 | 151 |
| 1987-09-09 | @ BAL | 138 | W 6-0 | 84-54 | 1 | 21,579 | Doyle Alexander | Mike Boddicker | Doyle Alexander | Mike Boddicker | | 789 | 632 | 157 |
| 1987-09-10 | @ MIL | 139 | L 3-4 | 84-55 | 1 | 9,715 | Frank Tanana | Juan Nieves | Juan Nieves | Frank Tanana | Paul Mirabella | 792 | 636 | 156 |
| 1987-09-11 | @ MIL | 140 | L 2-5 | 84-56 | 1 | 21,161 | Nate Snell | Teddy Higuera | Teddy Higuera | Mike Henneman | | 794 | 641 | 153 |
| 1987-09-12 | @ MIL | 141 | L 2-11 | 84-57 | 2 | 50,288 | Jack Morris | Bill Wegman | Bill Wegman | Jack Morris | | 796 | 652 | 144 |
| 1987-09-13 | @ MIL | 142 | W 5-1 | 85-57 | 1 | 21,880 | Walt Terrell | Chris Bosio | Walt Terrell | Chris Bosio | | 801 | 653 | 148 |
| 1987-09-14 | vs BOS | 143 | W 3-0 | 86-57 | 1 | 23,287 | Doyle Alexander | Roger Clemens | Doyle Alexander | Roger Clemens | Mike Henneman | 804 | 653 | 151 |
| 1987-09-15 | vs BOS | 144 | W 9-8 | 87-57 | 1 | 20,398 | Frank Tanana | Al Nipper | Dan Petry | Steve Crawford | Mike Henneman | 813 | 661 | 152 |
| 1987-09-16 | vs BOS | 145 | W 4-1 | 88-57 | 1 | 22,341 | Jack Morris | Jeff Sellers | Jack Morris | Jeff Sellers | | 817 | 662 | 155 |
| 1987-09-18 | vs MIL | 146 | W 7-6 | 89-57 | 1 | 30,104 | Walt Terrell | Bill Wegman | Walt Terrell | Bill Wegman | Eric King | 824 | 668 | 156 |
| 1987-09-19 | vs MIL | 147 | W 5-2 | 90-57 | 1 | 34,006 | Doyle Alexander | Chris Bosio | Doyle Alexander | Chris Bosio | | 829 | 670 | 159 |
| 1987-09-20 | vs MIL | 148 | L 4-11 | 90-58 | 1 | 42,143 | Jack Morris | Juan Nieves | Juan Nieves | Jack Morris | Chuck Crim | 833 | 681 | 152 |
| 1987-09-21 | @ BOS | 149 | L 4-9 | 90-59 | 2 | 20,376 | Nate Snell | Al Nipper | Al Nipper | Nate Snell | | 837 | 690 | 147 |
| 1987-09-22 | @ BOS | 150 | W 8-5 | 91-59 | 2 | 20,189 | Walt Terrell | Rob Woodward | Walt Terrell | Rob Woodward | Dickie Noles | 845 | 695 | 150 |
| 1987-09-23 | @ BOS | 151 | W 4-0 | 92-59 | 2 | 23,798 | Doyle Alexander | Bruce Hurst | Doyle Alexander | Bruce Hurst | | 849 | 695 | 154 |
| 1987-09-24 | @ TOR | 152 | L 3-4 | 92-60 | 2 | 42,436 | Jack Morris | Mike Flanagan | Mike Flanagan | Jack Morris | Tom Henke | 852 | 699 | 153 |
| 1987-09-25 | @ TOR | 153 | L 2-3 | 92-61 | 2 | 46,233 | Frank Tanana | Jimmy Key | Jeff Musselman | Guillermo Hernandez | | 854 | 702 | 152 |
| 1987-09-26 | @ TOR | 154 | L 9-10 | 92-62 | 2 | 46,429 | Walt Terrell | Dave Stieb | Jose Nunez | Mike Henneman | | 863 | 712 | 151 |
| 1987-09-27 | @ TOR | 155 | W 3-2 | 93-62 | 2 | 46,346 | Doyle Alexander | Jim Clancy | Mike Henneman | Jose Nunez | Dickie Noles | 866 | 714 | 152 |
| 1987-09-28 | vs BAL | 156 | L 0-3 | 93-63 | 2 | 20,015 | Jack Morris | John Habyan | John Habyan | Jack Morris | Tom Niedenfuer | 866 | 717 | 149 |
| 1987-09-29 | vs BAL | 157 | W 10-1 | 94-63 | 2 | 16,882 | Frank Tanana | Eric Bell | Frank Tanana | Eric Bell | | 876 | 718 | 158 |
| 1987-09-30 | vs BAL | 158 | L 3-7 | 94-64 | 2 | 19,434 | Dan Petry | Jose Mesa | Jose Mesa | Dan Petry | | 879 | 725 | 154 |
| 1987-10-01 | vs BAL | 159 | W 9-5 | 95-64 | 2 | 19,749 | Walt Terrell | Mike Boddicker | Walt Terrell | Mike Boddicker | | 888 | 730 | 158 |
| 1987-10-02 | vs TOR | 160 | W 4-3 | 96-64 | 1 | 45,167 | Doyle Alexander | Jim Clancy | Doyle Alexander | Jim Clancy | Mike Henneman | 892 | 733 | 159 |
| 1987-10-03 | vs TOR | 161 | W 3-2 | 97-64 | 1 | 45,026 | Jack Morris | Mike Flanagan | Mike Henneman | Jeff Musselman | | 895 | 735 | 160 |
| 1987-10-04 | vs TOR | 162 | W 1-0 | 98-64 | 1 | 51,005 | Frank Tanana | Jimmy Key | Frank Tanana | Jimmy Key | | 896 | 735 | 161 |