| 1983-04-04 | vs CLE | 1 | L 5-8 | 0-1 | 5 | 34,831 | Rick Langford | Rick Sutcliffe | Rick Sutcliffe | Rick Langford | Dan Spillner | 5 | 8 | -3 |
| 1983-04-06 | vs CLE | 2 | W 5-3 | 1-1 | 5 | 19,121 | Mike Norris | Bert Blyleven | Mike Norris | Bert Blyleven | Dave Beard | 10 | 11 | -1 |
| 1983-04-07 | vs CLE | 3 | L 1-9 | 1-2 | 6 | 8,761 | Tom Underwood | Len Barker | Len Barker | Tom Underwood | | 11 | 20 | -9 |
| 1983-04-08 | vs CAL | 4 | W 5-3 | 2-2 | 4 | 21,341 | Chris Codiroli | Geoff Zahn | Dave Beard | Geoff Zahn | | 16 | 23 | -7 |
| 1983-04-09 | vs CAL | 5 | L 2-10 | 2-3 | 6 | 22,507 | Matt Keough | Ken Forsch | Ken Forsch | Matt Keough | Luis Sanchez | 18 | 33 | -15 |
| 1983-04-10 | vs CAL | 6 | W 11-4 | 3-3 | 4 | 28,590 | Bill Krueger | Bruce Kison | Bill Krueger | Bruce Kison | | 29 | 37 | -8 |
| 1983-04-12 | vs MIN | 7 | W 4-3 | 4-3 | 3 | 7,129 | Mike Norris | Jack O'Connor | Dave Beard | Len Whitehouse | | 33 | 40 | -7 |
| 1983-04-13 | vs MIN | 8 | W 5-4 | 5-3 | 2 | 10,677 | Tom Underwood | Albert Williams | Steve Baker | Albert Williams | | 38 | 44 | -6 |
| 1983-04-14 | @ SEA | 9 | W 5-3 | 6-3 | 2 | 4,600 | Chris Codiroli | Ed Nunez | Chris Codiroli | Ed Nunez | Dave Beard | 43 | 47 | -4 |
| 1983-04-15 | @ SEA | 10 | L 1-5 | 6-4 | 3 | 6,175 | Matt Keough | Gaylord Perry | Gaylord Perry | Matt Keough | | 44 | 52 | -8 |
| 1983-04-16 | @ SEA | 11 | W 5-2 | 7-4 | 1 | 22,234 | Bill Krueger | Matt Young | Bill Krueger | Matt Young | Dave Beard | 49 | 54 | -5 |
| 1983-04-17 | @ SEA | 12 | W 7-4 | 8-4 | 1 | 5,153 | Mike Norris | Bob Stoddard | Mike Norris | Bob Stoddard | Tom Burgmeier | 56 | 58 | -2 |
| 1983-04-18 | @ CAL | 13 | W 5-3 | 9-4 | 1 | 27,780 | Tom Underwood | Mike Witt | Tom Underwood | Mike Witt | Steve Baker | 61 | 61 | 0 |
| 1983-04-21 | @ CAL | 14 | L 2-6 | 9-6 | 2 | 0 | Chris Codiroli | Geoff Zahn | Geoff Zahn | Chris Codiroli | | 63 | 67 | -4 |
| 1983-04-21 | @ CAL | 15 | L 5-6 | 9-6 | 2 | 29,400 | Matt Keough | Ken Forsch | Ken Forsch | Matt Keough | Luis Sanchez | 68 | 73 | -5 |
| 1983-04-22 | vs BOS | 16 | L 1-3 | 9-7 | 4 | 16,497 | Bill Krueger | Bruce Hurst | Bruce Hurst | Bill Krueger | Bob Stanley | 69 | 76 | -7 |
| 1983-04-24 | vs BOS | 17 | L 2-4 | 9-8 | 3 | 15,175 | Mike Norris | John Tudor | John Tudor | Mike Norris | Bob Stanley | 71 | 80 | -9 |
| 1983-04-26 | vs BAL | 18 | W 4-3 | 10-8 | 3 | 8,653 | Chris Codiroli | Jim Palmer | Chris Codiroli | Jim Palmer | Tom Burgmeier | 75 | 83 | -8 |
| 1983-04-27 | vs BAL | 19 | L 0-6 | 10-9 | 3 | 7,273 | Bill Krueger | Mike Flanagan | Mike Flanagan | Bill Krueger | Sammy Stewart | 75 | 89 | -14 |
| 1983-04-29 | vs DET | 20 | W 5-4 | 11-9 | 3 | 7,965 | Tom Underwood | Jack Morris | Steve Baker | Jack Morris | Steve McCatty | 80 | 93 | -13 |
| 1983-05-01 | vs DET | 21 | W 8-3 | 13-9 | 1 | 0 | Chris Codiroli | Jerry Ujdur | Chris Codiroli | Jerry Ujdur | | 88 | 96 | -8 |
| 1983-05-01 | vs DET | 22 | W 2-0 | 13-9 | 1 | 23,819 | Mike Norris | Milt Wilcox | Mike Norris | Milt Wilcox | Steve McCatty | 90 | 96 | -6 |
| 1983-05-03 | @ BOS | 23 | L 1-3 | 13-10 | 2 | 13,189 | Bill Krueger | Dennis Eckersley | Dennis Eckersley | Bill Krueger | Bob Stanley | 91 | 99 | -8 |
| 1983-05-04 | @ BOS | 24 | L 1-7 | 13-11 | 3 | 14,164 | Rick Langford | Bruce Hurst | Bruce Hurst | Rick Langford | | 92 | 106 | -14 |
| 1983-05-06 | @ BAL | 25 | L 2-9 | 13-12 | 4 | 44,252 | Mike Norris | Dennis Martinez | Dennis Martinez | Mike Norris | | 94 | 115 | -21 |
| 1983-05-07 | @ BAL | 26 | L 6-8 | 13-13 | 5 | 17,249 | Chris Codiroli | Mike Flanagan | Mike Flanagan | Chris Codiroli | Tippy Martinez | 100 | 123 | -23 |
| 1983-05-08 | @ BAL | 27 | W 1-0 | 14-13 | 3 | 15,392 | Bill Krueger | Storm Davis | Bill Krueger | Tippy Martinez | Dave Beard | 101 | 123 | -22 |
| 1983-05-10 | @ DET | 28 | L 3-4 | 14-14 | 4 | 9,410 | Rick Langford | Dave Rucker | Dave Rucker | Rick Langford | Aurelio Lopez | 104 | 127 | -23 |
| 1983-05-11 | @ DET | 29 | L 2-5 | 14-15 | 4 | 10,772 | Mike Norris | Milt Wilcox | Milt Wilcox | Mike Norris | | 106 | 132 | -26 |
| 1983-05-12 | @ DET | 30 | W 11-4 | 15-15 | 4 | 14,488 | Chris Codiroli | Dan Petry | Tom Burgmeier | Dan Petry | | 117 | 136 | -19 |
| 1983-05-13 | vs SEA | 31 | W 9-2 | 16-15 | 4 | 10,484 | Bill Krueger | Bob Stoddard | Bill Krueger | Bob Stoddard | | 126 | 138 | -12 |
| 1983-05-14 | vs SEA | 32 | L 1-4 | 16-16 | 4 | 17,097 | Rick Langford | Matt Young | Matt Young | Rick Langford | Bill Caudill | 127 | 142 | -15 |
| 1983-05-15 | vs SEA | 33 | W 3-0 | 17-16 | 3 | 24,664 | Tom Underwood | Jim Beattie | Tom Underwood | Jim Beattie | Steve McCatty | 130 | 142 | -12 |
| 1983-05-16 | @ MIN | 34 | W 7-6 | 18-16 | 3 | 7,056 | Mike Norris | Brad Havens | Mike Norris | Brad Havens | Tom Burgmeier | 137 | 148 | -11 |
| 1983-05-17 | @ MIN | 35 | W 7-6 | 19-16 | 3 | 4,686 | Chris Codiroli | Albert Williams | Chris Codiroli | Albert Williams | Steve McCatty | 144 | 154 | -10 |
| 1983-05-18 | @ MIN | 36 | L 5-16 | 19-17 | 3 | 4,069 | Bill Krueger | Frank Viola | Frank Viola | Bill Krueger | | 149 | 170 | -21 |
| 1983-05-20 | vs NYA | 37 | W 8-4 | 20-17 | 2 | 38,007 | Tom Underwood | Bob Shirley | Tom Underwood | Bob Shirley | Steve McCatty | 157 | 174 | -17 |
| 1983-05-21 | vs NYA | 38 | L 0-1 | 20-18 | 2 | 38,236 | Mike Norris | Shane Rawley | Shane Rawley | Mike Norris | Rich Gossage | 157 | 175 | -18 |
| 1983-05-22 | vs NYA | 39 | L 2-4 | 20-19 | 3 | 40,065 | Chris Codiroli | Ron Guidry | Ron Guidry | Tom Burgmeier | Rich Gossage | 159 | 179 | -20 |
| 1983-05-23 | vs MIL | 40 | W 5-4 | 21-19 | 2 | 24,029 | Bill Krueger | Don Sutton | Steve Baker | Jim Slaton | | 164 | 183 | -19 |
| 1983-05-24 | vs MIL | 41 | W 8-7 | 22-19 | 2 | 12,198 | Tim Conroy | Jerry Augustine | Matt Keough | Jamie Easterly | Steve Baker | 172 | 190 | -18 |
| 1983-05-25 | vs MIL | 42 | L 6-7 | 22-20 | 2 | 18,375 | Tom Underwood | Moose Haas | Moose Haas | Tom Underwood | Tom Tellmann | 178 | 197 | -19 |
| 1983-05-27 | @ NYA | 43 | L 2-4 | 22-21 | 3 | 19,237 | Mike Norris | Ron Guidry | Ron Guidry | Mike Norris | Rich Gossage | 180 | 201 | -21 |
| 1983-05-28 | @ NYA | 44 | L 2-5 | 22-22 | 3 | 25,174 | Chris Codiroli | Dave Righetti | Dave Righetti | Chris Codiroli | | 182 | 206 | -24 |
| 1983-05-29 | @ NYA | 45 | L 0-5 | 22-23 | 3 | 25,432 | Bill Krueger | Jay Howell | Rudy May | Bill Krueger | | 182 | 211 | -29 |
| 1983-05-30 | @ NYA | 46 | L 5-10 | 22-24 | 3 | 22,480 | Tom Underwood | Doyle Alexander | Rich Gossage | Tom Burgmeier | | 187 | 221 | -34 |
| 1983-05-31 | @ MIL | 47 | L 2-5 | 22-25 | 3 | 8,525 | Tim Conroy | Moose Haas | Moose Haas | Tim Conroy | | 189 | 226 | -37 |
| 1983-06-01 | @ MIL | 48 | W 7-5 | 23-25 | 3 | 12,513 | Mike Norris | Bob McClure | Tom Burgmeier | Chuck Porter | Tom Underwood | 196 | 231 | -35 |
| 1983-06-02 | @ MIL | 49 | L 1-6 | 23-26 | 4 | 16,722 | Chris Codiroli | Mike Caldwell | Mike Caldwell | Chris Codiroli | | 197 | 237 | -40 |
| 1983-06-04 | @ CLE | 50 | W 6-3 | 24-26 | 3 | 9,014 | Bill Krueger | Lary Sorensen | Tom Burgmeier | Rick Waits | | 203 | 240 | -37 |
| 1983-06-05 | @ CLE | 51 | W 8-3 | 26-26 | 3 | 0 | Tom Underwood | Juan Eichelberger | Matt Keough | Neal Heaton | | 211 | 243 | -32 |
| 1983-06-05 | @ CLE | 52 | W 9-2 | 26-26 | 3 | 14,048 | Steve McCatty | Len Barker | Steve McCatty | Len Barker | | 220 | 245 | -25 |
| 1983-06-07 | vs TOR | 53 | W 5-3 | 27-26 | 3 | 8,353 | Mike Norris | Jim Gott | Tim Conroy | Jim Gott | Steve Baker | 225 | 248 | -23 |
| 1983-06-08 | vs TOR | 54 | L 2-5 | 27-27 | 3 | 11,229 | Chris Codiroli | Dave Stieb | Dave Stieb | Chris Codiroli | Joey McLaughlin | 227 | 253 | -26 |
| 1983-06-09 | vs TOR | 55 | W 3-1 | 28-27 | 3 | 6,846 | Tom Underwood | Jim Clancy | Tom Underwood | Jim Clancy | Steve Baker | 230 | 254 | -24 |
| 1983-06-10 | vs CHA | 56 | W 2-1 | 29-27 | 3 | 12,804 | Bill Krueger | Floyd Bannister | Tom Burgmeier | Dick Tidrow | | 232 | 255 | -23 |
| 1983-06-11 | vs CHA | 57 | W 5-4 | 30-27 | 3 | 19,888 | Steve McCatty | LaMarr Hoyt | Tim Conroy | LaMarr Hoyt | | 237 | 259 | -22 |
| 1983-06-12 | vs CHA | 58 | L 10-12 | 30-29 | 4 | 0 | Matt Keough | Richard Dotson | Dick Tidrow | Mike Warren | | 247 | 271 | -24 |
| 1983-06-12 | vs CHA | 59 | L 1-8 | 30-29 | 4 | 33,122 | Chris Codiroli | Jerry Koosman | Jerry Koosman | Chris Codiroli | | 248 | 279 | -31 |
| 1983-06-14 | @ TOR | 60 | L 7-13 | 30-30 | 4 | 20,189 | Tom Underwood | Jim Clancy | Roy Lee Jackson | Tom Underwood | | 255 | 292 | -37 |
| 1983-06-15 | @ TOR | 61 | W 10-1 | 31-30 | 4 | 20,039 | Bill Krueger | Luis Leal | Bill Krueger | Luis Leal | | 265 | 293 | -28 |
| 1983-06-16 | @ TOR | 62 | L 1-9 | 31-31 | 4 | 18,186 | Steve McCatty | Jim Gott | Jim Gott | Steve McCatty | | 266 | 302 | -36 |
| 1983-06-17 | @ CHA | 63 | L 3-6 | 31-32 | 4 | 24,629 | Mike Norris | Jerry Koosman | Kevin Hickey | Tom Burgmeier | Salome Barojas | 269 | 308 | -39 |
| 1983-06-18 | @ CHA | 64 | W 3-1 | 32-32 | 4 | 24,298 | Chris Codiroli | Floyd Bannister | Chris Codiroli | Floyd Bannister | | 272 | 309 | -37 |
| 1983-06-19 | @ CHA | 65 | L 0-1 | 32-33 | 4 | 26,169 | Tom Underwood | Britt Burns | Britt Burns | Tom Underwood | | 272 | 310 | -38 |
| 1983-06-20 | @ KCA | 66 | W 7-2 | 33-33 | 4 | 30,748 | Bill Krueger | Vida Blue | Bill Krueger | Vida Blue | | 279 | 312 | -33 |
| 1983-06-21 | @ KCA | 67 | L 2-4 | 33-34 | 4 | 17,848 | Steve McCatty | Paul Splittorff | Paul Splittorff | Steve McCatty | Dan Quisenberry | 281 | 316 | -35 |
| 1983-06-22 | @ KCA | 68 | L 6-7 | 33-35 | 5 | 25,601 | Chris Codiroli | Larry Gura | Mike Armstrong | Ben Callahan | | 287 | 323 | -36 |
| 1983-06-24 | @ TEX | 69 | L 5-6 | 33-37 | 5 | 0 | Tom Underwood | Mike Smithson | Mike Smithson | Steve Baker | | 292 | 329 | -37 |
| 1983-06-24 | @ TEX | 70 | L 2-6 | 33-37 | 5 | 24,297 | Curt Young | Charlie Hough | Charlie Hough | Curt Young | | 294 | 335 | -41 |
| 1983-06-25 | @ TEX | 71 | L 3-8 | 33-38 | 5 | 22,112 | Bill Krueger | Frank Tanana | Frank Tanana | Bill Krueger | John Butcher | 297 | 343 | -46 |
| 1983-06-26 | @ TEX | 72 | L 1-4 | 33-39 | 5 | 27,600 | Steve McCatty | Danny Darwin | Danny Darwin | Steve McCatty | | 298 | 347 | -49 |
| 1983-06-27 | vs KCA | 73 | W 7-1 | 34-39 | 5 | 21,841 | Ben Callahan | Larry Gura | Ben Callahan | Larry Gura | Chris Codiroli | 305 | 348 | -43 |
| 1983-06-28 | vs KCA | 74 | W 4-3 | 35-39 | 5 | 10,135 | Tom Underwood | Buddy Black | Tom Underwood | Buddy Black | Steve Baker | 309 | 351 | -42 |
| 1983-06-29 | vs KCA | 75 | W 11-6 | 36-39 | 5 | 11,453 | Curt Young | Paul Splittorff | Jeff Jones | Steve Renko | | 320 | 357 | -37 |
| 1983-06-30 | vs KCA | 76 | L 4-7 | 36-40 | 5 | 16,048 | Steve McCatty | Keith Creel | Don Hood | Tom Burgmeier | Dan Quisenberry | 324 | 364 | -40 |
| 1983-07-01 | vs TEX | 77 | L 5-8 | 36-41 | 5 | 9,326 | Ben Callahan | Danny Darwin | Danny Darwin | Ben Callahan | Dave Tobik | 329 | 372 | -43 |
| 1983-07-02 | vs TEX | 78 | L 3-13 | 36-42 | 5 | 18,760 | Tom Underwood | Rick Honeycutt | Rick Honeycutt | Tom Underwood | | 332 | 385 | -53 |
| 1983-07-03 | vs TEX | 79 | L 4-16 | 36-43 | 5 | 20,697 | Jeff Jones | Charlie Hough | Odell Jones | Dave Beard | | 336 | 401 | -65 |
| 1983-07-04 | vs TEX | 80 | W 4-3 | 37-43 | 5 | 45,413 | Steve McCatty | Mike Smithson | Steve McCatty | Mike Smithson | Tom Underwood | 340 | 404 | -64 |
| 1983-07-08 | @ DET | 81 | L 2-3 | 37-44 | 5 | 46,723 | Tim Conroy | Dan Petry | Doug Bair | Steve Baker | Aurelio Lopez | 342 | 407 | -65 |
| 1983-07-09 | @ DET | 82 | W 3-1 | 38-44 | 5 | 32,740 | Steve McCatty | Jack Morris | Steve McCatty | Jack Morris | Tom Underwood | 345 | 408 | -63 |
| 1983-07-10 | @ DET | 83 | L 3-5 | 38-45 | 5 | 20,769 | Chris Codiroli | Juan Berenguer | Howard Bailey | Dave Beard | | 348 | 413 | -65 |
| 1983-07-11 | @ BAL | 84 | L 6-7 | 38-46 | 5 | 22,546 | Steve Baker | Dennis Martinez | Dennis Martinez | Steve Baker | Dan Morogiello | 354 | 420 | -66 |
| 1983-07-12 | @ BAL | 85 | L 1-3 | 38-47 | 5 | 16,265 | Gorman Heimueller | Allan Ramirez | Allan Ramirez | Gorman Heimueller | Tim Stoddard | 355 | 423 | -68 |
| 1983-07-13 | @ BAL | 86 | L 2-6 | 38-48 | 5 | 14,187 | Tim Conroy | Storm Davis | Storm Davis | Tim Conroy | Sammy Stewart | 357 | 429 | -72 |
| 1983-07-14 | @ BOS | 87 | L 4-9 | 38-49 | 5 | 24,914 | Steve McCatty | John Tudor | John Tudor | Steve McCatty | Bob Stanley | 361 | 438 | -77 |
| 1983-07-15 | @ BOS | 88 | L 7-10 | 38-50 | 5 | 25,243 | Chris Codiroli | Bruce Hurst | Mark Clear | Tom Burgmeier | | 368 | 448 | -80 |
| 1983-07-16 | @ BOS | 89 | W 12-5 | 39-50 | 5 | 28,537 | Gorman Heimueller | Bob Ojeda | Keith Atherton | Bob Stanley | | 380 | 453 | -73 |
| 1983-07-17 | @ BOS | 90 | W 13-9 | 40-50 | 5 | 24,326 | Rick Langford | Mike Brown | Chris Codiroli | Mark Clear | | 393 | 462 | -69 |
| 1983-07-18 | vs DET | 91 | L 2-4 | 40-51 | 5 | 16,950 | Tim Conroy | Dan Petry | Dan Petry | Tim Conroy | Doug Bair | 395 | 466 | -71 |
| 1983-07-19 | vs DET | 92 | L 3-4 | 40-52 | 5 | 9,211 | Steve McCatty | Jack Morris | Jack Morris | Dave Beard | | 398 | 470 | -72 |
| 1983-07-20 | vs DET | 93 | W 9-2 | 41-52 | 5 | 16,561 | Chris Codiroli | Juan Berenguer | Chris Codiroli | Doug Bair | | 407 | 472 | -65 |
| 1983-07-21 | vs BAL | 94 | W 9-7 | 42-52 | 5 | 9,326 | Gorman Heimueller | Paul Mirabella | Dave Beard | Dan Morogiello | Tom Burgmeier | 416 | 479 | -63 |
| 1983-07-22 | vs BAL | 95 | W 4-3 | 43-52 | 5 | 15,211 | Rick Langford | Allan Ramirez | Tom Burgmeier | Allan Ramirez | | 420 | 482 | -62 |
| 1983-07-23 | vs BAL | 96 | L 3-7 | 43-53 | 5 | 23,069 | Tim Conroy | Storm Davis | Storm Davis | Tim Conroy | | 423 | 489 | -66 |
| 1983-07-24 | vs BAL | 97 | L 3-4 | 43-54 | 5 | 23,215 | Steve McCatty | Scott McGregor | Scott McGregor | Steve McCatty | | 426 | 493 | -67 |
| 1983-07-25 | vs BOS | 98 | L 0-3 | 43-55 | 5 | 24,383 | Chris Codiroli | Bruce Hurst | Bruce Hurst | Chris Codiroli | | 426 | 496 | -70 |
| 1983-07-26 | vs BOS | 99 | W 9-2 | 44-56 | 5 | 0 | Mike Norris | Bob Ojeda | Tom Underwood | Bob Stanley | | 435 | 498 | -63 |
| 1983-07-26 | vs BOS | 100 | L 3-5 | 44-56 | 5 | 14,750 | Gorman Heimueller | Doug Bird | Bob Stanley | Tom Burgmeier | | 438 | 503 | -65 |
| 1983-07-27 | vs BOS | 101 | W 7-6 | 45-56 | 5 | 15,604 | Rick Langford | Mike Brown | Bill Krueger | Mike Brown | Keith Atherton | 445 | 509 | -64 |
| 1983-07-29 | @ CAL | 102 | W 5-2 | 46-56 | 5 | 43,662 | Tim Conroy | Ken Forsch | Tim Conroy | Ken Forsch | Tom Underwood | 450 | 511 | -61 |
| 1983-07-30 | @ CAL | 103 | W 13-8 | 48-56 | 5 | 0 | Chris Codiroli | Bruce Kison | Tom Burgmeier | Luis Sanchez | | 463 | 519 | -56 |
| 1983-07-30 | @ CAL | 104 | W 2-1 | 48-56 | 5 | 41,306 | Steve McCatty | Tommy John | Dave Beard | Tommy John | | 465 | 520 | -55 |
| 1983-07-31 | @ CAL | 105 | L 0-4 | 48-57 | 5 | 27,051 | Gorman Heimueller | Geoff Zahn | Geoff Zahn | Gorman Heimueller | | 465 | 524 | -59 |
| 1983-08-01 | @ SEA | 106 | W 4-3 | 49-57 | 5 | 6,510 | Mike Norris | Mike Moore | Tom Underwood | Mike Stanton | Dave Beard | 469 | 527 | -58 |
| 1983-08-02 | @ SEA | 107 | L 12-15 | 49-58 | 5 | 5,833 | Bill Krueger | Bryan Clark | Roy Thomas | Chris Codiroli | Ed Vande Berg | 481 | 542 | -61 |
| 1983-08-03 | @ SEA | 108 | W 6-1 | 50-58 | 5 | 6,261 | Tim Conroy | Jim Beattie | Tim Conroy | Jim Beattie | | 487 | 543 | -56 |
| 1983-08-04 | @ MIN | 109 | L 3-4 | 50-59 | 5 | 12,457 | Steve McCatty | Ken Schrom | Len Whitehouse | Tom Burgmeier | | 490 | 547 | -57 |
| 1983-08-05 | @ MIN | 110 | W 3-2 | 51-59 | 5 | 8,203 | Gorman Heimueller | Jack O'Connor | Gorman Heimueller | Jack O'Connor | Dave Beard | 493 | 549 | -56 |
| 1983-08-06 | @ MIN | 111 | W 6-4 | 52-59 | 5 | 11,759 | Mike Norris | Bobby Castillo | Keith Atherton | Ron Davis | | 499 | 553 | -54 |
| 1983-08-07 | @ MIN | 112 | W 6-0 | 53-59 | 5 | 8,503 | Chris Codiroli | Frank Viola | Chris Codiroli | Frank Viola | Keith Atherton | 505 | 553 | -48 |
| 1983-08-08 | vs SEA | 113 | W 2-1 | 54-59 | 4 | 14,329 | Tim Conroy | Jim Beattie | Tim Conroy | Jim Beattie | Dave Beard | 507 | 554 | -47 |
| 1983-08-09 | vs SEA | 114 | W 7-6 | 55-59 | 3 | 6,848 | Steve McCatty | Glenn Abbott | Tom Underwood | Bob Stoddard | Dave Beard | 514 | 560 | -46 |
| 1983-08-10 | vs SEA | 115 | L 5-7 | 55-60 | 3 | 13,780 | Gorman Heimueller | Matt Young | Matt Young | Gorman Heimueller | Ed Vande Berg | 519 | 567 | -48 |
| 1983-08-11 | vs MIN | 116 | W 6-0 | 56-60 | 3 | 6,915 | Chris Codiroli | Frank Viola | Chris Codiroli | Frank Viola | | 525 | 567 | -42 |
| 1983-08-12 | vs MIN | 117 | L 3-5 | 56-61 | 4 | 10,735 | Mike Warren | Ken Schrom | Ken Schrom | Tom Underwood | Ron Davis | 528 | 572 | -44 |
| 1983-08-13 | vs MIN | 118 | L 3-7 | 56-62 | 4 | 18,028 | Tim Conroy | Albert Williams | Albert Williams | Tim Conroy | | 531 | 579 | -48 |
| 1983-08-14 | vs MIN | 119 | W 6-0 | 57-62 | 4 | 19,155 | Steve McCatty | Bobby Castillo | Steve McCatty | Bobby Castillo | | 537 | 579 | -42 |
| 1983-08-15 | vs CAL | 120 | W 5-0 | 58-62 | 3 | 31,619 | Gorman Heimueller | Geoff Zahn | Gorman Heimueller | Geoff Zahn | | 542 | 579 | -37 |
| 1983-08-16 | vs CAL | 121 | W 4-0 | 59-62 | 3 | 16,560 | Chris Codiroli | Rick Steirer | Chris Codiroli | Rick Steirer | Dave Beard | 546 | 579 | -33 |
| 1983-08-17 | vs CAL | 122 | L 5-6 | 59-63 | 3 | 13,520 | Mike Warren | Mike Witt | Mike Witt | Mike Warren | John Curtis | 551 | 585 | -34 |
| 1983-08-19 | @ MIL | 123 | W 9-1 | 60-63 | 3 | 43,898 | Tim Conroy | Don Sutton | Tim Conroy | Don Sutton | | 560 | 586 | -26 |
| 1983-08-20 | @ MIL | 124 | L 1-3 | 60-64 | 3 | 51,722 | Steve McCatty | Bob McClure | Tom Tellmann | Steve McCatty | Pete Ladd | 561 | 589 | -28 |
| 1983-08-21 | @ MIL | 125 | L 1-7 | 60-65 | 3 | 43,609 | Chris Codiroli | Moose Haas | Moose Haas | Chris Codiroli | Jim Slaton | 562 | 596 | -34 |
| 1983-08-22 | @ NYA | 126 | W 3-2 | 61-65 | 3 | 22,339 | Gorman Heimueller | Ray Fontenot | Dave Beard | George Frazier | | 565 | 598 | -33 |
| 1983-08-23 | @ NYA | 127 | W 9-3 | 62-65 | 3 | 27,475 | Mike Warren | Matt Keough | Mike Warren | Matt Keough | | 574 | 601 | -27 |
| 1983-08-24 | @ CLE | 128 | L 0-1 | 62-67 | 3 | 0 | Tim Conroy | Neal Heaton | Neal Heaton | Tim Conroy | | 574 | 602 | -28 |
| 1983-08-24 | @ CLE | 129 | L 2-4 | 62-67 | 3 | 6,096 | Mark Smith | Lary Sorensen | Lary Sorensen | Keith Atherton | Jamie Easterly | 576 | 606 | -30 |
| 1983-08-25 | @ CLE | 130 | W 6-0 | 63-67 | 3 | 6,044 | Steve McCatty | Mike Jeffcoat | Steve McCatty | Mike Jeffcoat | | 582 | 606 | -24 |
| 1983-08-26 | vs MIL | 131 | W 4-3 | 64-67 | 3 | 20,027 | Chris Codiroli | Moose Haas | Chris Codiroli | Moose Haas | Dave Beard | 586 | 609 | -23 |
| 1983-08-27 | vs MIL | 132 | W 5-2 | 65-67 | 3 | 26,110 | Gorman Heimueller | Chuck Porter | Gorman Heimueller | Chuck Porter | | 591 | 611 | -20 |
| 1983-08-28 | vs MIL | 133 | L 2-4 | 65-68 | 3 | 24,052 | Mike Warren | Mike Caldwell | Mike Caldwell | Mike Warren | Jerry Augustine | 593 | 615 | -22 |
| 1983-08-30 | vs NYA | 134 | L 5-8 | 65-69 | 3 | 22,141 | Steve McCatty | Ron Guidry | Ron Guidry | Dave Beard | | 598 | 623 | -25 |
| 1983-08-31 | vs NYA | 135 | L 4-6 | 65-70 | 3 | 15,279 | Tim Conroy | Shane Rawley | Shane Rawley | Tim Conroy | Rich Gossage | 602 | 629 | -27 |
| 1983-09-01 | vs NYA | 136 | W 2-0 | 66-70 | 3 | 19,153 | Chris Codiroli | Dave Righetti | Chris Codiroli | Dave Righetti | | 604 | 629 | -25 |
| 1983-09-02 | vs CLE | 137 | L 2-4 | 66-71 | 3 | 6,916 | Gorman Heimueller | Lary Sorensen | Lary Sorensen | Gorman Heimueller | Bud Anderson | 606 | 633 | -27 |
| 1983-09-03 | vs CLE | 138 | L 6-13 | 66-72 | 3 | 15,196 | Mike Warren | Neal Heaton | Dan Spillner | Dave Beard | | 612 | 646 | -34 |
| 1983-09-04 | vs CLE | 139 | L 2-9 | 66-73 | 3 | 10,274 | Steve McCatty | Rick Sutcliffe | Rick Sutcliffe | Steve McCatty | | 614 | 655 | -41 |
| 1983-09-05 | @ CHA | 140 | L 1-11 | 66-74 | 3 | 43,014 | Tim Conroy | Floyd Bannister | Floyd Bannister | Tim Conroy | | 615 | 666 | -51 |
| 1983-09-06 | @ CHA | 141 | L 6-7 | 66-75 | 3 | 18,742 | Chris Codiroli | LaMarr Hoyt | LaMarr Hoyt | Chris Codiroli | Dennis Lamp | 621 | 673 | -52 |
| 1983-09-07 | @ CHA | 142 | L 7-8 | 66-76 | 3 | 21,881 | Gorman Heimueller | Jerry Koosman | Juan Agosto | Keith Atherton | | 628 | 681 | -53 |
| 1983-09-09 | @ TOR | 143 | W 7-5 | 67-76 | 3 | 20,336 | Steve McCatty | Jim Clancy | Steve McCatty | Jim Clancy | Keith Atherton | 635 | 686 | -51 |
| 1983-09-10 | @ TOR | 144 | L 5-7 | 67-77 | 3 | 26,434 | Tim Conroy | Dave Stieb | Dave Stieb | Tom Underwood | Randy Moffitt | 640 | 693 | -53 |
| 1983-09-11 | @ TOR | 145 | L 6-16 | 67-78 | 3 | 38,439 | Chris Codiroli | Jim Gott | Jim Gott | Chris Codiroli | | 646 | 709 | -63 |
| 1983-09-13 | vs TEX | 146 | W 6-5 | 68-78 | 3 | 5,643 | Mike Warren | Frank Tanana | Mike Warren | Frank Tanana | Keith Atherton | 652 | 714 | -62 |
| 1983-09-14 | vs TEX | 147 | L 2-4 | 68-79 | 3 | 8,890 | Steve McCatty | Charlie Hough | Charlie Hough | Steve McCatty | Dave Tobik | 654 | 718 | -64 |
| 1983-09-15 | vs TEX | 148 | L 5-6 | 68-80 | 4 | 6,947 | Tim Conroy | Mike Smithson | Dave J. Schmidt | Tim Conroy | Dave Tobik | 659 | 724 | -65 |
| 1983-09-16 | @ KCA | 149 | L 5-6 | 68-81 | 4 | 20,951 | Chris Codiroli | Gaylord Perry | Larry Gura | Keith Atherton | Dan Quisenberry | 664 | 730 | -66 |
| 1983-09-17 | @ KCA | 150 | L 1-10 | 68-82 | 4 | 22,494 | Gorman Heimueller | Eric Rasmussen | Eric Rasmussen | Gorman Heimueller | Dan Quisenberry | 665 | 740 | -75 |
| 1983-09-18 | @ KCA | 151 | W 6-2 | 69-82 | 4 | 19,862 | Mike Warren | Frank Wills | Mike Warren | Frank Wills | | 671 | 742 | -71 |
| 1983-09-20 | @ TEX | 152 | L 2-3 | 69-83 | 4 | 5,272 | Steve McCatty | Charlie Hough | Charlie Hough | Keith Atherton | | 673 | 745 | -72 |
| 1983-09-21 | @ TEX | 153 | L 2-4 | 69-84 | 4 | 5,869 | Chris Codiroli | Mike Smithson | Mike Smithson | Chris Codiroli | | 675 | 749 | -74 |
| 1983-09-23 | vs TOR | 154 | W 2-0 | 70-84 | 4 | 8,069 | Tim Conroy | Luis Leal | Tim Conroy | Luis Leal | | 677 | 749 | -72 |
| 1983-09-24 | vs TOR | 155 | W 2-1 | 71-84 | 4 | 11,732 | Mike Warren | Jim Clancy | Mike Warren | Jim Clancy | | 679 | 750 | -71 |
| 1983-09-25 | vs TOR | 156 | L 6-8 | 71-85 | 4 | 14,650 | Steve McCatty | Dave Stieb | Jim Acker | Keith Atherton | | 685 | 758 | -73 |
| 1983-09-27 | vs CHA | 157 | W 5-4 | 72-85 | 4 | 7,876 | Chris Codiroli | Floyd Bannister | Tom Underwood | Dick Tidrow | | 690 | 762 | -72 |
| 1983-09-28 | vs CHA | 158 | L 3-5 | 72-86 | 4 | 6,705 | Tim Conroy | Richard Dotson | Richard Dotson | Tim Conroy | Dennis Lamp | 693 | 767 | -74 |
| 1983-09-29 | vs CHA | 159 | W 3-0 | 73-86 | 4 | 9,058 | Mike Warren | Britt Burns | Mike Warren | Britt Burns | | 696 | 767 | -71 |
| 1983-10-01 | vs KCA | 160 | L 1-4 | 73-88 | 4 | 0 | Steve McCatty | Paul Splittorff | Paul Splittorff | Steve McCatty | Dan Quisenberry | 697 | 771 | -74 |
| 1983-10-01 | vs KCA | 161 | L 3-7 | 73-88 | 4 | 11,346 | Gorman Heimueller | Danny Jackson | Mike Armstrong | Jeff Jones | Dan Quisenberry | 700 | 778 | -78 |
| 1983-10-02 | vs KCA | 162 | W 8-4 | 74-88 | 4 | 23,699 | Ed Farmer | Keith Creel | Mark Smith | Don Hood | | 708 | 782 | -74 |