| 1984-04-03 | vs NYA | 1 | W 4-2 | 1-0 | 2 | 10,006 | Buddy Black | Ron Guidry | Buddy Black | Ron Guidry | Dan Quisenberry | 4 | 2 | 2 |
| 1984-04-04 | vs NYA | 2 | L 3-4 | 1-1 | 4 | 14,408 | Paul Splittorff | Phil Niekro | Phil Niekro | Paul Splittorff | Dave Righetti | 7 | 6 | 1 |
| 1984-04-05 | vs NYA | 3 | W 15-4 | 2-1 | 3 | 18,171 | Larry Gura | Shane Rawley | Larry Gura | Shane Rawley | | 22 | 10 | 12 |
| 1984-04-06 | vs CLE | 4 | L 0-2 | 2-2 | 4 | 17,390 | Mark Gubicza | Bert Blyleven | Bert Blyleven | Mark Gubicza | George Frazier | 22 | 12 | 10 |
| 1984-04-08 | vs CLE | 5 | W 5-4 | 3-2 | 3 | 13,146 | Buddy Black | Rick Sutcliffe | Buddy Black | George Frazier | Dan Quisenberry | 27 | 16 | 11 |
| 1984-04-10 | @ BAL | 6 | L 3-6 | 3-3 | 3 | 18,000 | Paul Splittorff | Scott McGregor | Scott McGregor | Paul Splittorff | Storm Davis | 30 | 22 | 8 |
| 1984-04-11 | @ BAL | 7 | W 5-2 | 4-3 | 3 | 19,886 | Larry Gura | Mike Boddicker | Larry Gura | Mike Boddicker | Dan Quisenberry | 35 | 24 | 11 |
| 1984-04-13 | vs MIL | 8 | W 6-3 | 5-3 | 3 | 14,447 | Buddy Black | Jaime Cocanower | Buddy Black | Jaime Cocanower | Dan Quisenberry | 41 | 27 | 14 |
| 1984-04-14 | vs MIL | 9 | L 4-8 | 5-4 | 5 | 14,549 | Mark Gubicza | Don Sutton | Don Sutton | Mark Huismann | Rollie Fingers | 45 | 35 | 10 |
| 1984-04-15 | vs MIL | 10 | L 2-3 | 5-5 | 5 | 16,056 | Danny Jackson | Mike Caldwell | Mike Caldwell | Dan Quisenberry | Rollie Fingers | 47 | 38 | 9 |
| 1984-04-18 | @ DET | 11 | L 3-4 | 5-6 | 5 | 12,310 | Buddy Black | Jack Morris | Guillermo Hernandez | Joe Beckwith | | 50 | 42 | 8 |
| 1984-04-19 | @ DET | 12 | W 5-2 | 6-6 | 5 | 12,100 | Bret Saberhagen | Dan Petry | Bret Saberhagen | Dan Petry | Dan Quisenberry | 55 | 44 | 11 |
| 1984-04-20 | @ CLE | 13 | W 6-4 | 7-6 | 3 | 6,655 | Larry Gura | Neal Heaton | Larry Gura | Neal Heaton | Dan Quisenberry | 61 | 48 | 13 |
| 1984-04-21 | @ CLE | 14 | L 2-3 | 7-7 | 4 | 7,276 | Danny Jackson | Bert Blyleven | Bert Blyleven | Danny Jackson | Ernie Camacho | 63 | 51 | 12 |
| 1984-04-24 | @ NYA | 15 | L 0-4 | 7-8 | 5 | 15,237 | Buddy Black | Phil Niekro | Phil Niekro | Buddy Black | | 63 | 55 | 8 |
| 1984-04-25 | vs BAL | 16 | W 3-2 | 8-8 | 4 | 15,716 | Larry Gura | Storm Davis | Dan Quisenberry | Tippy Martinez | | 66 | 57 | 9 |
| 1984-04-26 | vs BAL | 17 | L 3-11 | 8-9 | 5 | 16,585 | Danny Jackson | Mike Flanagan | Mike Flanagan | Danny Jackson | | 69 | 68 | 1 |
| 1984-04-27 | vs TOR | 18 | L 0-1 | 8-10 | 5 | 16,435 | Mark Gubicza | Doyle Alexander | Doyle Alexander | Mark Gubicza | Dennis Lamp | 69 | 69 | 0 |
| 1984-04-28 | vs TOR | 19 | L 0-6 | 8-11 | 5 | 18,194 | Bret Saberhagen | Dave Stieb | Dave Stieb | Bret Saberhagen | | 69 | 75 | -6 |
| 1984-05-01 | @ MIL | 20 | W 3-0 | 9-11 | 4 | 7,756 | Larry Gura | Jaime Cocanower | Larry Gura | Jaime Cocanower | Dan Quisenberry | 72 | 75 | -3 |
| 1984-05-03 | @ MIL | 21 | L 5-6 | 9-12 | 6 | 9,320 | Buddy Black | Don Sutton | Tom Tellmann | Dan Quisenberry | | 77 | 81 | -4 |
| 1984-05-04 | @ TOR | 22 | L 3-4 | 9-13 | 6 | 16,469 | Bret Saberhagen | Dave Stieb | Dave Stieb | Mark Huismann | | 80 | 85 | -5 |
| 1984-05-05 | @ TOR | 23 | L 1-10 | 9-14 | 6 | 31,076 | Danny Jackson | Jim Gott | Jim Gott | Danny Jackson | | 81 | 95 | -14 |
| 1984-05-06 | @ TOR | 24 | L 1-2 | 9-15 | 6 | 23,334 | Larry Gura | Luis Leal | Roy Lee Jackson | Larry Gura | | 82 | 97 | -15 |
| 1984-05-07 | vs DET | 25 | L 3-10 | 9-16 | 6 | 19,474 | Mark Gubicza | Juan Berenguer | Juan Berenguer | Mark Gubicza | Doug Bair | 85 | 107 | -22 |
| 1984-05-08 | vs DET | 26 | L 2-5 | 9-17 | 6 | 14,304 | Buddy Black | Jack Morris | Jack Morris | Buddy Black | | 87 | 112 | -25 |
| 1984-05-09 | vs DET | 27 | L 1-3 | 9-18 | 6 | 15,709 | Danny Jackson | Dan Petry | Dan Petry | Danny Jackson | Aurelio Lopez | 88 | 115 | -27 |
| 1984-05-11 | vs BOS | 28 | W 6-4 | 10-18 | 6 | 21,484 | Larry Gura | Dennis Eckersley | Larry Gura | Dennis Eckersley | Dan Quisenberry | 94 | 119 | -25 |
| 1984-05-12 | vs BOS | 29 | W 3-0 | 11-18 | 6 | 27,008 | Mark Gubicza | Bruce Hurst | Mark Gubicza | Bruce Hurst | | 97 | 119 | -22 |
| 1984-05-13 | vs BOS | 30 | W 5-1 | 12-18 | 6 | 21,044 | Buddy Black | Mike Brown | Buddy Black | Mike Brown | Dan Quisenberry | 102 | 120 | -18 |
| 1984-05-14 | @ CHA | 31 | L 0-2 | 12-19 | 6 | 20,007 | Bret Saberhagen | Tom Seaver | Tom Seaver | Bret Saberhagen | | 102 | 122 | -20 |
| 1984-05-15 | @ CHA | 32 | L 2-3 | 12-20 | 6 | 20,740 | Danny Jackson | Richard Dotson | Richard Dotson | Danny Jackson | | 104 | 125 | -21 |
| 1984-05-16 | @ CHA | 33 | W 7-6 | 13-20 | 6 | 21,669 | Larry Gura | Floyd Bannister | Joe Beckwith | Salome Barojas | Dan Quisenberry | 111 | 131 | -20 |
| 1984-05-18 | vs TEX | 34 | L 1-2 | 13-21 | 6 | 27,573 | Buddy Black | Dave Stewart | Dave Stewart | Buddy Black | Dave J. Schmidt | 112 | 133 | -21 |
| 1984-05-19 | vs TEX | 35 | W 6-2 | 14-21 | 6 | 19,518 | Mark Gubicza | Charlie Hough | Mark Gubicza | Charlie Hough | | 118 | 135 | -17 |
| 1984-05-20 | vs TEX | 36 | L 2-3 | 14-22 | 6 | 23,118 | Bret Saberhagen | Mike Mason | Mike Mason | Bret Saberhagen | | 120 | 138 | -18 |
| 1984-05-21 | vs CHA | 37 | L 4-8 | 14-23 | 6 | 24,921 | Larry Gura | Floyd Bannister | Floyd Bannister | Larry Gura | | 124 | 146 | -22 |
| 1984-05-22 | vs CHA | 38 | W 7-6 | 15-23 | 6 | 19,490 | Danny Jackson | LaMarr Hoyt | Joe Beckwith | Salome Barojas | Dan Quisenberry | 131 | 152 | -21 |
| 1984-05-23 | vs CHA | 39 | W 1-0 | 16-23 | 6 | 18,504 | Buddy Black | Britt Burns | Buddy Black | Britt Burns | | 132 | 152 | -20 |
| 1984-05-25 | @ BOS | 40 | W 8-5 | 17-23 | 6 | 20,657 | Bret Saberhagen | Bob Ojeda | Bret Saberhagen | Bob Ojeda | Dan Quisenberry | 140 | 157 | -17 |
| 1984-05-26 | @ BOS | 41 | W 11-7 | 18-23 | 6 | 20,133 | Mark Gubicza | Roger Clemens | Paul Splittorff | Bob Stanley | | 151 | 164 | -13 |
| 1984-05-27 | @ BOS | 42 | L 0-6 | 18-24 | 6 | 27,355 | Joe Beckwith | Bruce Hurst | Bruce Hurst | Joe Beckwith | | 151 | 170 | -19 |
| 1984-05-28 | @ TEX | 43 | W 6-1 | 19-24 | 6 | 15,640 | Larry Gura | Frank Tanana | Larry Gura | Frank Tanana | | 157 | 171 | -14 |
| 1984-05-29 | @ TEX | 44 | W 7-5 | 20-24 | 6 | 9,982 | Buddy Black | Dave Stewart | Dan Quisenberry | Dave J. Schmidt | | 164 | 176 | -12 |
| 1984-05-30 | @ TEX | 45 | L 3-7 | 20-25 | 6 | 11,282 | Bret Saberhagen | Charlie Hough | Charlie Hough | Bret Saberhagen | | 167 | 183 | -16 |
| 1984-05-31 | @ MIN | 46 | L 2-7 | 20-26 | 6 | 11,011 | Mark Gubicza | Ed Hodge | Ed Hodge | Mark Gubicza | Ron Davis | 169 | 190 | -21 |
| 1984-06-01 | @ MIN | 47 | W 7-1 | 21-26 | 6 | 13,164 | Charlie Leibrandt | Mike Smithson | Charlie Leibrandt | Mike Smithson | | 176 | 191 | -15 |
| 1984-06-02 | @ MIN | 48 | W 7-6 | 22-26 | 6 | 13,799 | Larry Gura | Ken Schrom | Dan Quisenberry | Len Whitehouse | | 183 | 197 | -14 |
| 1984-06-03 | @ MIN | 49 | W 5-2 | 23-26 | 4 | 12,144 | Buddy Black | Frank Viola | Buddy Black | Frank Viola | Joe Beckwith | 188 | 199 | -11 |
| 1984-06-04 | vs SEA | 50 | L 1-7 | 23-27 | 6 | 24,315 | Bret Saberhagen | Mark Langston | Mark Langston | Bret Saberhagen | | 189 | 206 | -17 |
| 1984-06-05 | vs SEA | 51 | W 4-3 | 24-27 | 5 | 16,933 | Mark Gubicza | Ed Vande Berg | Mark Gubicza | Ed Vande Berg | Dan Quisenberry | 193 | 209 | -16 |
| 1984-06-06 | vs SEA | 52 | W 5-2 | 25-27 | 4 | 17,635 | Charlie Leibrandt | Mike Moore | Charlie Leibrandt | Mike Moore | Dan Quisenberry | 198 | 211 | -13 |
| 1984-06-07 | vs SEA | 53 | W 9-8 | 26-27 | 3 | 22,688 | Larry Gura | Matt Young | Danny Jackson | Dave Beard | Dan Quisenberry | 207 | 219 | -12 |
| 1984-06-09 | vs CAL | 54 | L 1-4 | 26-28 | 3 | 25,835 | Buddy Black | Ron Romanick | Ron Romanick | Buddy Black | Luis Sanchez | 208 | 223 | -15 |
| 1984-06-10 | vs CAL | 55 | L 0-2 | 26-29 | 4 | 31,490 | Mark Gubicza | Geoff Zahn | Geoff Zahn | Mark Gubicza | | 208 | 225 | -17 |
| 1984-06-12 | @ SEA | 56 | L 2-3 | 26-30 | 5 | 6,980 | Charlie Leibrandt | Mike Moore | Mike Moore | Bret Saberhagen | | 210 | 228 | -18 |
| 1984-06-13 | @ SEA | 57 | W 6-4 | 27-30 | 3 | 9,015 | Larry Gura | Matt Young | Larry Gura | Matt Young | Dan Quisenberry | 216 | 232 | -16 |
| 1984-06-14 | @ SEA | 58 | L 1-4 | 27-31 | 5 | 6,074 | Buddy Black | Jim Beattie | Jim Beattie | Buddy Black | Mike Stanton | 217 | 236 | -19 |
| 1984-06-15 | vs MIN | 59 | L 0-3 | 27-32 | 5 | 28,264 | Mark Gubicza | John Butcher | John Butcher | Mark Gubicza | | 217 | 239 | -22 |
| 1984-06-16 | vs MIN | 60 | L 1-6 | 27-33 | 6 | 29,046 | Bret Saberhagen | Ed Hodge | Albert Williams | Bret Saberhagen | Pete Filson | 218 | 245 | -27 |
| 1984-06-17 | vs MIN | 61 | L 1-3 | 27-34 | 6 | 23,105 | Charlie Leibrandt | Mike Smithson | Mike Smithson | Charlie Leibrandt | Ron Davis | 219 | 248 | -29 |
| 1984-06-18 | @ OAK | 62 | L 2-10 | 27-35 | 6 | 22,235 | Larry Gura | Ray Burris | Ray Burris | Larry Gura | | 221 | 258 | -37 |
| 1984-06-19 | @ OAK | 63 | W 6-2 | 28-35 | 6 | 8,828 | Buddy Black | Chris Codiroli | Buddy Black | Chris Codiroli | Dan Quisenberry | 227 | 260 | -33 |
| 1984-06-20 | @ OAK | 64 | L 1-8 | 28-36 | 7 | 13,342 | Mark Gubicza | Bill Krueger | Bill Krueger | Mark Gubicza | | 228 | 268 | -40 |
| 1984-06-22 | @ CAL | 65 | L 1-8 | 28-37 | 7 | 31,324 | Charlie Leibrandt | Mike Witt | Mike Witt | Charlie Leibrandt | | 229 | 276 | -47 |
| 1984-06-23 | @ CAL | 66 | W 6-5 | 29-37 | 7 | 42,060 | Larry Gura | Tommy John | Larry Gura | Bruce Kison | Dan Quisenberry | 235 | 281 | -46 |
| 1984-06-24 | @ CAL | 67 | W 3-2 | 30-37 | 6 | 36,272 | Buddy Black | Ron Romanick | Buddy Black | Ron Romanick | Dan Quisenberry | 238 | 283 | -45 |
| 1984-06-25 | vs OAK | 68 | W 16-0 | 31-37 | 6 | 34,204 | Mark Gubicza | Bill Krueger | Mark Gubicza | Bill Krueger | | 254 | 283 | -29 |
| 1984-06-26 | vs OAK | 69 | L 4-8 | 31-39 | 7 | 0 | Paul Splittorff | Lary Sorensen | Lary Sorensen | Paul Splittorff | Bill Caudill | 258 | 291 | -33 |
| 1984-06-26 | vs OAK | 70 | L 1-6 | 31-39 | 7 | 24,513 | Charlie Leibrandt | Curt Young | Curt Young | Charlie Leibrandt | | 259 | 297 | -38 |
| 1984-06-27 | vs OAK | 71 | L 5-9 | 31-40 | 7 | 23,715 | Larry Gura | Steve McCatty | Steve McCatty | Larry Gura | | 264 | 306 | -42 |
| 1984-06-29 | vs NYA | 72 | W 3-2 | 32-40 | 6 | 32,535 | Buddy Black | Phil Niekro | Buddy Black | Phil Niekro | Dan Quisenberry | 267 | 308 | -41 |
| 1984-06-30 | vs NYA | 73 | W 6-2 | 33-40 | 6 | 31,540 | Mark Gubicza | Ron Guidry | Mark Gubicza | Ron Guidry | | 273 | 310 | -37 |
| 1984-07-01 | vs NYA | 74 | W 8-0 | 34-40 | 6 | 32,767 | Charlie Leibrandt | Bob Shirley | Charlie Leibrandt | Bob Shirley | Dan Quisenberry | 281 | 310 | -29 |
| 1984-07-02 | @ CLE | 75 | W 9-3 | 36-40 | 5 | 0 | Larry Gura | Neal Heaton | Larry Gura | Neal Heaton | | 290 | 313 | -23 |
| 1984-07-02 | @ CLE | 76 | W 4-3 | 36-40 | 5 | 9,987 | Mike Jones | Roy Smith | Mark Huismann | Roy Smith | Dan Quisenberry | 294 | 316 | -22 |
| 1984-07-03 | @ CLE | 77 | L 3-15 | 36-41 | 5 | 44,110 | Buddy Black | Bert Blyleven | Bert Blyleven | Buddy Black | | 297 | 331 | -34 |
| 1984-07-04 | @ CLE | 78 | W 4-0 | 37-41 | 4 | 8,441 | Bret Saberhagen | Steve Comer | Bret Saberhagen | Steve Comer | | 301 | 331 | -30 |
| 1984-07-06 | @ BAL | 79 | W 6-2 | 38-41 | 4 | 24,109 | Charlie Leibrandt | Mike Boddicker | Charlie Leibrandt | Mike Boddicker | Dan Quisenberry | 307 | 333 | -26 |
| 1984-07-07 | @ BAL | 80 | L 2-6 | 38-43 | 5 | 0 | Larry Gura | Scott McGregor | Scott McGregor | Larry Gura | | 309 | 339 | -30 |
| 1984-07-07 | @ BAL | 81 | L 0-8 | 38-43 | 5 | 46,842 | Mike Jones | Mike Flanagan | Mike Flanagan | Mike Jones | | 309 | 347 | -38 |
| 1984-07-08 | @ BAL | 82 | W 6-1 | 39-43 | 5 | 25,604 | Buddy Black | Dennis Martinez | Buddy Black | Dennis Martinez | | 315 | 348 | -33 |
| 1984-07-12 | @ NYA | 83 | L 2-5 | 39-44 | 5 | 21,429 | Larry Gura | Phil Niekro | Phil Niekro | Larry Gura | Dave Righetti | 317 | 353 | -36 |
| 1984-07-13 | @ NYA | 84 | L 1-7 | 39-46 | 5 | 0 | Buddy Black | Ron Guidry | Ron Guidry | Buddy Black | | 318 | 360 | -42 |
| 1984-07-13 | @ NYA | 85 | L 1-8 | 39-46 | 5 | 25,173 | Bret Saberhagen | Marty Bystrom | Marty Bystrom | Bret Saberhagen | | 319 | 368 | -49 |
| 1984-07-14 | @ NYA | 86 | L 1-4 | 39-47 | 6 | 27,214 | Mark Gubicza | Dennis Rasmussen | Dennis Rasmussen | Mark Gubicza | Dave Righetti | 320 | 372 | -52 |
| 1984-07-15 | @ NYA | 87 | L 1-4 | 39-48 | 6 | 27,142 | Charlie Leibrandt | Ray Fontenot | Ray Fontenot | Charlie Leibrandt | Jay Howell | 321 | 376 | -55 |
| 1984-07-16 | vs CLE | 88 | W 3-1 | 40-48 | 6 | 24,171 | Mike Jones | Don Schulze | Mike Jones | Don Schulze | Dan Quisenberry | 324 | 377 | -53 |
| 1984-07-17 | vs CLE | 89 | L 7-9 | 40-50 | 6 | 0 | Larry Gura | Neal Heaton | Neal Heaton | Larry Gura | Ernie Camacho | 331 | 386 | -55 |
| 1984-07-17 | vs CLE | 90 | L 2-6 | 40-50 | 6 | 20,890 | Frank Wills | Steve Comer | Steve Comer | Frank Wills | Tom Waddell | 333 | 392 | -59 |
| 1984-07-18 | vs CLE | 91 | L 1-2 | 40-51 | 6 | 19,356 | Buddy Black | Bert Blyleven | Bert Blyleven | Buddy Black | Tom Waddell | 334 | 394 | -60 |
| 1984-07-19 | vs BAL | 92 | W 6-3 | 41-51 | 6 | 29,342 | Mark Gubicza | Mike Flanagan | Mark Gubicza | Mike Flanagan | | 340 | 397 | -57 |
| 1984-07-20 | vs BAL | 93 | W 4-3 | 42-51 | 6 | 28,707 | Charlie Leibrandt | Dennis Martinez | Bret Saberhagen | Tippy Martinez | Dan Quisenberry | 344 | 400 | -56 |
| 1984-07-21 | vs BAL | 94 | L 3-4 | 42-52 | 6 | 26,355 | Mike Jones | Storm Davis | Storm Davis | Mark Huismann | Sammy Stewart | 347 | 404 | -57 |
| 1984-07-22 | vs BAL | 95 | W 8-4 | 43-52 | 6 | 38,190 | Larry Gura | Scott McGregor | Larry Gura | Scott McGregor | | 355 | 408 | -53 |
| 1984-07-23 | vs TOR | 96 | W 9-8 | 45-52 | 5 | 0 | Buddy Black | Luis Leal | Joe Beckwith | Roy Lee Jackson | Dan Quisenberry | 364 | 416 | -52 |
| 1984-07-23 | vs TOR | 97 | W 7-2 | 45-52 | 5 | 31,852 | Frank Wills | Jim Gott | Frank Wills | Jim Gott | Bret Saberhagen | 371 | 418 | -47 |
| 1984-07-24 | vs TOR | 98 | W 5-4 | 46-52 | 4 | 21,607 | Mark Gubicza | Dave Stieb | Mark Gubicza | Dave Stieb | Dan Quisenberry | 376 | 422 | -46 |
| 1984-07-25 | vs TOR | 99 | W 5-4 | 47-52 | 4 | 19,653 | Charlie Leibrandt | Jim Clancy | Dan Quisenberry | Bryan Clark | | 381 | 426 | -45 |
| 1984-07-27 | @ MIL | 100 | W 12-8 | 48-53 | 4 | 0 | Larry Gura | Jaime Cocanower | Larry Gura | Jaime Cocanower | Mark Huismann | 393 | 434 | -41 |
| 1984-07-27 | @ MIL | 101 | L 1-3 | 48-53 | 4 | 30,754 | Mike Jones | Tom Candiotti | Tom Candiotti | Mike Jones | Rick Waits | 394 | 437 | -43 |
| 1984-07-28 | @ MIL | 102 | L 2-3 | 48-54 | 4 | 38,290 | Buddy Black | Don Sutton | Don Sutton | Buddy Black | Tom Tellmann | 396 | 440 | -44 |
| 1984-07-29 | @ MIL | 103 | W 5-1 | 49-54 | 4 | 29,863 | Mark Gubicza | Moose Haas | Mark Gubicza | Moose Haas | | 401 | 441 | -40 |
| 1984-07-30 | @ TOR | 104 | W 7-4 | 50-54 | 4 | 24,414 | Charlie Leibrandt | Jim Clancy | Charlie Leibrandt | Jim Clancy | | 408 | 445 | -37 |
| 1984-07-31 | @ TOR | 105 | L 5-6 | 50-55 | 4 | 23,156 | Frank Wills | Doyle Alexander | Doyle Alexander | Frank Wills | Jim Gott | 413 | 451 | -38 |
| 1984-08-01 | @ TOR | 106 | L 1-4 | 50-56 | 4 | 22,084 | Larry Gura | Luis Leal | Luis Leal | Larry Gura | Jim Gott | 414 | 455 | -41 |
| 1984-08-03 | @ DET | 107 | W 9-6 | 51-56 | 4 | 39,480 | Buddy Black | Milt Wilcox | Bret Saberhagen | Milt Wilcox | Dan Quisenberry | 423 | 461 | -38 |
| 1984-08-04 | @ DET | 108 | W 9-5 | 52-56 | 4 | 41,714 | Mark Gubicza | Glenn Abbott | Joe Beckwith | Doug Bair | | 432 | 466 | -34 |
| 1984-08-05 | @ DET | 109 | W 5-4 | 54-56 | 4 | 0 | Mike Jones | Dave Rozema | Bret Saberhagen | Guillermo Hernandez | Dan Quisenberry | 437 | 470 | -33 |
| 1984-08-05 | @ DET | 110 | W 4-0 | 54-56 | 4 | 42,761 | Charlie Leibrandt | Juan Berenguer | Charlie Leibrandt | Juan Berenguer | | 441 | 470 | -29 |
| 1984-08-07 | vs MIL | 111 | W 8-5 | 55-56 | 4 | 22,001 | Larry Gura | Bob McClure | Joe Beckwith | Pete Ladd | Dan Quisenberry | 449 | 475 | -26 |
| 1984-08-08 | vs MIL | 112 | L 2-3 | 55-57 | 4 | 21,926 | Buddy Black | Don Sutton | Don Sutton | Buddy Black | Rick Waits | 451 | 478 | -27 |
| 1984-08-09 | vs MIL | 113 | W 5-4 | 56-57 | 4 | 29,065 | Mark Gubicza | Moose Haas | Mark Huismann | Pete Ladd | | 456 | 482 | -26 |
| 1984-08-10 | vs DET | 114 | L 4-5 | 56-58 | 4 | 32,181 | Mike Jones | Dan Petry | Aurelio Lopez | Joe Beckwith | Guillermo Hernandez | 460 | 487 | -27 |
| 1984-08-11 | vs DET | 115 | L 5-9 | 56-59 | 4 | 40,501 | Charlie Leibrandt | Jack Morris | Jack Morris | Charlie Leibrandt | Aurelio Lopez | 465 | 496 | -31 |
| 1984-08-12 | vs DET | 116 | L 4-8 | 56-60 | 4 | 32,753 | Bret Saberhagen | Milt Wilcox | Milt Wilcox | Bret Saberhagen | | 469 | 504 | -35 |
| 1984-08-13 | vs BOS | 117 | W 6-1 | 57-60 | 4 | 33,214 | Buddy Black | Oil Can Boyd | Buddy Black | Oil Can Boyd | | 475 | 505 | -30 |
| 1984-08-14 | vs BOS | 118 | L 2-8 | 57-61 | 4 | 21,487 | Mark Gubicza | Al Nipper | Al Nipper | Mark Gubicza | | 477 | 513 | -36 |
| 1984-08-15 | vs BOS | 119 | W 13-8 | 58-61 | 4 | 23,176 | Mike Jones | Bob Ojeda | Joe Beckwith | Bob Stanley | Dan Quisenberry | 490 | 521 | -31 |
| 1984-08-16 | @ TEX | 120 | W 6-3 | 59-61 | 3 | 9,521 | Charlie Leibrandt | Mike Mason | Charlie Leibrandt | Mike Mason | Dan Quisenberry | 496 | 524 | -28 |
| 1984-08-17 | @ TEX | 121 | L 6-8 | 59-62 | 4 | 17,799 | Bret Saberhagen | Dickie Noles | Dave J. Schmidt | Dan Quisenberry | | 502 | 532 | -30 |
| 1984-08-18 | @ TEX | 122 | W 5-4 | 60-62 | 3 | 23,351 | Buddy Black | Danny Darwin | Buddy Black | Danny Darwin | Mark Huismann | 507 | 536 | -29 |
| 1984-08-19 | @ TEX | 123 | L 4-6 | 60-63 | 3 | 10,343 | Larry Gura | Frank Tanana | Frank Tanana | Larry Gura | Dave J. Schmidt | 511 | 542 | -31 |
| 1984-08-20 | @ BOS | 124 | W 8-5 | 61-63 | 2 | 20,251 | Mark Gubicza | Mike Brown | Mark Gubicza | Mike Brown | Dan Quisenberry | 519 | 547 | -28 |
| 1984-08-21 | @ BOS | 125 | L 1-11 | 61-64 | 2 | 21,143 | Charlie Leibrandt | Roger Clemens | Roger Clemens | Charlie Leibrandt | | 520 | 558 | -38 |
| 1984-08-22 | @ BOS | 126 | W 6-2 | 62-64 | 2 | 23,287 | Frank Wills | Bruce Hurst | Joe Beckwith | Bruce Hurst | | 526 | 560 | -34 |
| 1984-08-24 | vs CHA | 127 | W 5-2 | 63-64 | 2 | 31,702 | Buddy Black | Floyd Bannister | Buddy Black | Floyd Bannister | Dan Quisenberry | 531 | 562 | -31 |
| 1984-08-25 | vs CHA | 128 | L 0-3 | 63-65 | 2 | 36,261 | Mark Gubicza | Tom Seaver | Tom Seaver | Mark Gubicza | | 531 | 565 | -34 |
| 1984-08-26 | vs CHA | 129 | W 6-5 | 64-65 | 2 | 22,971 | Charlie Leibrandt | Richard Dotson | Larry Gura | Bert Roberge | | 537 | 570 | -33 |
| 1984-08-27 | vs CHA | 130 | W 7-4 | 65-65 | 2 | 23,884 | Bret Saberhagen | LaMarr Hoyt | Bret Saberhagen | LaMarr Hoyt | Dan Quisenberry | 544 | 574 | -30 |
| 1984-08-28 | vs TEX | 131 | L 0-6 | 65-66 | 2 | 15,545 | Frank Wills | Danny Darwin | Danny Darwin | Frank Wills | | 544 | 580 | -36 |
| 1984-08-29 | vs TEX | 132 | W 4-1 | 66-66 | 2 | 15,887 | Buddy Black | Frank Tanana | Buddy Black | Frank Tanana | | 548 | 581 | -33 |
| 1984-08-30 | vs TEX | 133 | L 3-4 | 66-67 | 2 | 19,163 | Mark Gubicza | Charlie Hough | Charlie Hough | Mark Gubicza | Dave J. Schmidt | 551 | 585 | -34 |
| 1984-08-31 | @ CHA | 134 | W 3-1 | 67-67 | 2 | 21,828 | Charlie Leibrandt | Richard Dotson | Charlie Leibrandt | Richard Dotson | Dan Quisenberry | 554 | 586 | -32 |
| 1984-09-01 | @ CHA | 135 | L 1-6 | 67-68 | 3 | 24,509 | Bret Saberhagen | LaMarr Hoyt | LaMarr Hoyt | Bret Saberhagen | | 555 | 592 | -37 |
| 1984-09-02 | @ CHA | 136 | W 6-4 | 68-68 | 2 | 23,314 | Mike Jones | Gene Nelson | Dan Quisenberry | Britt Burns | Mark Huismann | 561 | 596 | -35 |
| 1984-09-03 | vs MIN | 137 | L 1-4 | 68-69 | 2 | 37,043 | Buddy Black | John Butcher | John Butcher | Buddy Black | Ron Davis | 562 | 600 | -38 |
| 1984-09-04 | vs MIN | 138 | W 4-1 | 69-69 | 2 | 16,349 | Mark Gubicza | Ken Schrom | Mark Gubicza | Ken Schrom | Dan Quisenberry | 566 | 601 | -35 |
| 1984-09-05 | vs MIN | 139 | W 4-1 | 70-69 | 1 | 18,272 | Charlie Leibrandt | Mike Smithson | Charlie Leibrandt | Mike Smithson | Dan Quisenberry | 570 | 602 | -32 |
| 1984-09-07 | vs SEA | 140 | W 5-4 | 71-69 | 1 | 20,637 | Buddy Black | Matt Young | Bret Saberhagen | Matt Young | Dan Quisenberry | 575 | 606 | -31 |
| 1984-09-08 | vs SEA | 141 | W 5-4 | 72-69 | 1 | 26,725 | Mike Jones | Mike Moore | Joe Beckwith | Mike Moore | | 580 | 610 | -30 |
| 1984-09-09 | vs SEA | 142 | W 6-5 | 73-69 | 1 | 20,274 | Danny Jackson | Mark Langston | Mark Huismann | Ed Nunez | | 586 | 615 | -29 |
| 1984-09-10 | @ MIN | 143 | L 3-7 | 73-70 | 1 | 23,795 | Mark Gubicza | Mike Smithson | Mike Smithson | Mark Gubicza | | 589 | 622 | -33 |
| 1984-09-11 | @ MIN | 144 | L 1-5 | 73-71 | 2 | 20,992 | Charlie Leibrandt | Frank Viola | Frank Viola | Charlie Leibrandt | | 590 | 627 | -37 |
| 1984-09-12 | @ MIN | 145 | W 3-2 | 74-71 | 1 | 27,906 | Buddy Black | John Butcher | Buddy Black | Rick Lysander | Dan Quisenberry | 593 | 629 | -36 |
| 1984-09-14 | @ SEA | 146 | L 1-2 | 74-72 | 1 | 6,585 | Danny Jackson | Mark Langston | Mark Langston | Danny Jackson | | 594 | 631 | -37 |
| 1984-09-15 | @ SEA | 147 | W 8-5 | 75-72 | 1 | 8,795 | Mike Jones | Jim Beattie | Mike Jones | Karl Best | Dan Quisenberry | 602 | 636 | -34 |
| 1984-09-16 | @ SEA | 148 | W 4-2 | 76-72 | 1 | 5,151 | Charlie Leibrandt | Salome Barojas | Charlie Leibrandt | Salome Barojas | Joe Beckwith | 606 | 638 | -32 |
| 1984-09-17 | @ CAL | 149 | W 10-1 | 77-72 | 1 | 28,862 | Buddy Black | Bruce Kison | Buddy Black | Bruce Kison | | 616 | 639 | -23 |
| 1984-09-18 | @ CAL | 150 | W 10-0 | 78-72 | 1 | 29,570 | Bret Saberhagen | Jim Slaton | Bret Saberhagen | Jim Slaton | | 626 | 639 | -13 |
| 1984-09-19 | @ CAL | 151 | L 3-4 | 78-73 | 1 | 29,094 | Danny Jackson | Geoff Zahn | Don Aase | Joe Beckwith | | 629 | 643 | -14 |
| 1984-09-20 | @ CAL | 152 | L 0-2 | 78-74 | 1 | 32,772 | Mark Gubicza | Mike Witt | Mike Witt | Mark Gubicza | | 629 | 645 | -16 |
| 1984-09-21 | vs OAK | 153 | W 7-4 | 79-74 | 1 | 23,053 | Charlie Leibrandt | Mike Warren | Frank Wills | Lary Sorensen | Dan Quisenberry | 636 | 649 | -13 |
| 1984-09-22 | vs OAK | 154 | W 4-2 | 80-74 | 1 | 23,328 | Buddy Black | Ray Burris | Buddy Black | Ray Burris | Dan Quisenberry | 640 | 651 | -11 |
| 1984-09-23 | vs OAK | 155 | L 1-5 | 80-75 | 1 | 24,040 | Mike Jones | Chris Codiroli | Chris Codiroli | Mike Jones | Bill Caudill | 641 | 656 | -15 |
| 1984-09-24 | vs CAL | 156 | W 4-0 | 82-75 | 1 | 0 | Bret Saberhagen | Geoff Zahn | Bret Saberhagen | Geoff Zahn | | 645 | 656 | -11 |
| 1984-09-24 | vs CAL | 157 | W 12-4 | 82-75 | 1 | 39,574 | Danny Jackson | Rick Steirer | Danny Jackson | Rick Steirer | | 657 | 660 | -3 |
| 1984-09-25 | vs CAL | 158 | W 6-5 | 83-75 | 1 | 20,320 | Mark Gubicza | Mike Witt | Dan Quisenberry | Curt Kaufman | | 663 | 665 | -2 |
| 1984-09-26 | vs CAL | 159 | L 0-2 | 83-76 | 1 | 22,728 | Buddy Black | Ron Romanick | Ron Romanick | Buddy Black | | 663 | 667 | -4 |
| 1984-09-28 | @ OAK | 160 | W 6-5 | 84-76 | 1 | 11,395 | Charlie Leibrandt | Ray Burris | Charlie Leibrandt | Ray Burris | Dan Quisenberry | 669 | 672 | -3 |
| 1984-09-29 | @ OAK | 161 | L 2-6 | 84-77 | 1 | 13,223 | Bret Saberhagen | Chris Codiroli | Chris Codiroli | Bret Saberhagen | | 671 | 678 | -7 |
| 1984-09-30 | @ OAK | 162 | L 2-8 | 84-78 | 1 | 23,028 | Mark Gubicza | Bill Krueger | Bill Krueger | Mark Gubicza | | 673 | 686 | -13 |