| 1977-04-07 | @ DET | 1 | W 7-4 | 1-0 | 1 | 46,807 | Paul Splittorff | Dave Roberts | Paul Splittorff | Dave Roberts | Mark Littell | 7 | 4 | 3 |
| 1977-04-09 | @ DET | 2 | W 16-2 | 2-0 | 1 | 9,240 | Andy Hassler | Ray Bare | Andy Hassler | Ray Bare | Dennis Leonard | 23 | 6 | 17 |
| 1977-04-10 | @ DET | 3 | W 5-0 | 3-0 | 1 | 7,804 | Jim Colborn | Vern Ruhle | Jim Colborn | Vern Ruhle | Larry Gura | 28 | 6 | 22 |
| 1977-04-11 | vs NYA | 4 | W 5-4 | 4-0 | 1 | 39,460 | Paul Splittorff | Dock Ellis | Mark Littell | Dick Tidrow | | 33 | 10 | 23 |
| 1977-04-13 | vs NYA | 5 | L 3-5 | 4-1 | 2 | 20,089 | Andy Hassler | Ed Figueroa | Ron Guidry | Andy Hassler | | 36 | 15 | 21 |
| 1977-04-15 | vs DET | 6 | L 3-4 | 4-2 | 4 | 15,955 | Jim Colborn | Vern Ruhle | Vern Ruhle | Jim Colborn | Steve Foucault | 39 | 19 | 20 |
| 1977-04-16 | vs DET | 7 | L 5-8 | 4-3 | 4 | 23,753 | Paul Splittorff | Dave Rozema | John Hiller | Steve Mingori | | 44 | 27 | 17 |
| 1977-04-17 | vs DET | 8 | W 6-5 | 5-3 | 3 | 15,868 | Andy Hassler | Dave Roberts | Larry Gura | Dave Roberts | Mark Littell | 50 | 32 | 18 |
| 1977-04-18 | vs MIN | 9 | L 6-8 | 5-4 | 3 | 13,802 | Dennis Leonard | Dave Goltz | Tom Johnson | Steve Mingori | | 56 | 40 | 16 |
| 1977-04-19 | vs MIN | 10 | W 11-3 | 6-4 | 3 | 12,230 | Jim Colborn | Pete Redfern | Jim Colborn | Pete Redfern | | 67 | 43 | 24 |
| 1977-04-20 | vs MIN | 11 | L 2-3 | 6-5 | 4 | 9,267 | Paul Splittorff | Paul Thormodsgard | Tom Burgmeier | Mark Littell | Tom Johnson | 69 | 46 | 23 |
| 1977-04-22 | @ SEA | 12 | W 6-5 | 7-5 | 4 | 19,756 | Andy Hassler | Glenn Abbott | Mark Littell | Dave Pagan | Larry Gura | 75 | 51 | 24 |
| 1977-04-23 | @ SEA | 13 | W 8-6 | 8-5 | 3 | 22,685 | Dennis Leonard | Stan Thomas | Dennis Leonard | Diego Segui | Larry Gura | 83 | 57 | 26 |
| 1977-04-24 | @ SEA | 14 | W 16-1 | 9-6 | 3 | 0 | Jim Colborn | Gary Wheelock | Jim Colborn | Gary Wheelock | | 99 | 58 | 41 |
| 1977-04-24 | @ SEA | 15 | L 2-4 | 9-6 | 3 | 21,734 | Paul Splittorff | Frank MacCormack | John Montague | Paul Splittorff | | 101 | 62 | 39 |
| 1977-04-26 | vs TEX | 16 | W 6-3 | 10-6 | 2 | 15,780 | Andy Hassler | Gaylord Perry | Doug Bird | Gaylord Perry | | 107 | 65 | 42 |
| 1977-04-27 | vs TEX | 17 | L 0-5 | 10-7 | 4 | 16,822 | Dennis Leonard | Bert Blyleven | Bert Blyleven | Dennis Leonard | | 107 | 70 | 37 |
| 1977-04-29 | vs TOR | 18 | W 6-1 | 11-7 | 1 | 15,523 | Jim Colborn | Bill Singer | Jim Colborn | Bill Singer | | 113 | 71 | 42 |
| 1977-04-30 | vs TOR | 19 | L 1-2 | 11-8 | 2 | 15,301 | Paul Splittorff | Jerry Garvin | Jerry Garvin | Paul Splittorff | | 114 | 73 | 41 |
| 1977-05-01 | vs TOR | 20 | W 8-2 | 12-8 | 2 | 34,066 | Larry Gura | Dave Lemanczyk | Larry Gura | Dave Lemanczyk | Mark Littell | 122 | 75 | 47 |
| 1977-05-02 | vs CHA | 21 | W 3-1 | 13-8 | 1 | 15,400 | Dennis Leonard | Francisco Barrios | Dennis Leonard | Francisco Barrios | | 125 | 76 | 49 |
| 1977-05-03 | vs CHA | 22 | L 4-8 | 13-9 | 2 | 16,680 | Marty Pattin | Chris Knapp | Dave Hamilton | Steve Mingori | | 129 | 84 | 45 |
| 1977-05-04 | vs CHA | 23 | L 3-6 | 13-10 | 3 | 10,737 | Jim Colborn | Steve Stone | Bart Johnson | Jim Colborn | Lerrin LaGrow | 132 | 90 | 42 |
| 1977-05-05 | vs CHA | 24 | W 6-5 | 14-10 | 2 | 10,888 | Paul Splittorff | Ken Brett | Doug Bird | Ken Brett | Mark Littell | 138 | 95 | 43 |
| 1977-05-06 | @ TEX | 25 | L 2-5 | 14-11 | 4 | 25,728 | Larry Gura | Doyle Alexander | Doyle Alexander | Larry Gura | | 140 | 100 | 40 |
| 1977-05-07 | @ TEX | 26 | W 6-5 | 15-11 | 3 | 22,166 | Dennis Leonard | Gaylord Perry | Mark Littell | Adrian Devine | | 146 | 105 | 41 |
| 1977-05-08 | @ TEX | 27 | L 2-5 | 15-12 | 4 | 15,581 | Marty Pattin | Bert Blyleven | Bert Blyleven | Marty Pattin | Darold Knowles | 148 | 110 | 38 |
| 1977-05-09 | vs CAL | 28 | L 3-5 | 15-13 | 4 | 21,901 | Jim Colborn | Wayne Simpson | Wayne Simpson | Jim Colborn | Paul Hartzell | 151 | 115 | 36 |
| 1977-05-10 | vs CAL | 29 | L 1-6 | 15-14 | 4 | 16,740 | Paul Splittorff | Nolan Ryan | Nolan Ryan | Paul Splittorff | | 152 | 121 | 31 |
| 1977-05-12 | vs TEX | 30 | L 0-2 | 15-15 | 5 | 20,391 | Dennis Leonard | Gaylord Perry | Gaylord Perry | Dennis Leonard | | 152 | 123 | 29 |
| 1977-05-13 | vs TEX | 31 | W 3-2 | 16-15 | 4 | 20,872 | Larry Gura | Bert Blyleven | Mark Littell | Bert Blyleven | | 155 | 125 | 30 |
| 1977-05-14 | vs TEX | 32 | W 6-0 | 17-15 | 3 | 29,978 | Jim Colborn | Tommy Boggs | Jim Colborn | Tommy Boggs | | 161 | 125 | 36 |
| 1977-05-15 | vs TEX | 33 | L 3-7 | 17-16 | 4 | 19,983 | Paul Splittorff | Adrian Devine | Adrian Devine | Paul Splittorff | Paul Lindblad | 164 | 132 | 32 |
| 1977-05-18 | @ CHA | 34 | L 4-7 | 17-17 | 4 | 20,041 | Dennis Leonard | Chris Knapp | Chris Knapp | Dennis Leonard | Lerrin LaGrow | 168 | 139 | 29 |
| 1977-05-19 | @ CHA | 35 | L 3-8 | 17-18 | 4 | 11,695 | Jim Colborn | Steve Stone | Steve Stone | Jim Colborn | | 171 | 147 | 24 |
| 1977-05-20 | vs CLE | 36 | W 4-0 | 18-18 | 4 | 17,532 | Paul Splittorff | Dennis Eckersley | Paul Splittorff | Dennis Eckersley | | 175 | 147 | 28 |
| 1977-05-21 | vs CLE | 37 | L 7-12 | 18-19 | 5 | 20,114 | Doug Bird | Wayne Garland | Rick Waits | Mark Littell | | 182 | 159 | 23 |
| 1977-05-22 | vs CLE | 38 | L 1-7 | 18-20 | 5 | 31,059 | Dennis Leonard | Jim Bibby | Jim Bibby | Dennis Leonard | | 183 | 166 | 17 |
| 1977-05-25 | @ BAL | 39 | W 4-1 | 19-21 | 6 | 11,388 | Paul Splittorff | Ross Grimsley | Paul Splittorff | Ross Grimsley | Larry Gura | 187 | 167 | 20 |
| 1977-05-25 | @ BAL | 40 | L 2-7 | 19-21 | 6 | 11,388 | Jim Colborn | Dennis Martinez | Dennis Martinez | Jim Colborn | | 189 | 174 | 15 |
| 1977-05-27 | @ BOS | 41 | L 1-10 | 19-22 | 6 | 23,472 | Dennis Leonard | Fergie Jenkins | Fergie Jenkins | Dennis Leonard | | 190 | 184 | 6 |
| 1977-05-28 | @ BOS | 42 | L 12-17 | 19-23 | 6 | 26,126 | Doug Bird | Luis Tiant | Bill Campbell | Marty Pattin | | 202 | 201 | 1 |
| 1977-05-29 | @ BOS | 43 | W 3-0 | 20-23 | 6 | 26,920 | Jim Colborn | Bob Stanley | Jim Colborn | Bob Stanley | Mark Littell | 205 | 201 | 4 |
| 1977-05-30 | @ TOR | 44 | W 4-1 | 21-23 | 6 | 20,002 | Paul Splittorff | Jerry Garvin | Paul Splittorff | Jerry Garvin | Mark Littell | 209 | 202 | 7 |
| 1977-06-01 | @ TOR | 45 | W 11-3 | 22-23 | 5 | 33,004 | Dennis Leonard | Bill Singer | Dennis Leonard | Bill Singer | | 220 | 205 | 15 |
| 1977-06-03 | vs BAL | 46 | L 6-7 | 22-24 | 6 | 21,878 | Doug Bird | Ross Grimsley | Ross Grimsley | Doug Bird | Tippy Martinez | 226 | 212 | 14 |
| 1977-06-04 | vs BAL | 47 | L 4-5 | 23-25 | 6 | 36,931 | Jim Colborn | Dennis Martinez | Dennis Martinez | Jim Colborn | | 230 | 217 | 13 |
| 1977-06-04 | vs BAL | 48 | W 14-13 | 23-25 | 6 | 36,931 | Paul Splittorff | Rudy May | Larry Gura | Mike Flanagan | | 244 | 230 | 14 |
| 1977-06-05 | vs BAL | 49 | W 4-3 | 24-25 | 6 | 16,559 | Andy Hassler | Jim Palmer | Andy Hassler | Jim Palmer | Larry Gura | 248 | 233 | 15 |
| 1977-06-06 | vs BOS | 50 | L 0-1 | 24-26 | 6 | 25,881 | Dennis Leonard | Luis Tiant | Luis Tiant | Dennis Leonard | Bill Campbell | 248 | 234 | 14 |
| 1977-06-07 | vs BOS | 51 | W 5-4 | 25-26 | 4 | 21,184 | Jim Colborn | Fergie Jenkins | Mark Littell | Mike Paxton | | 253 | 238 | 15 |
| 1977-06-08 | @ MIN | 52 | L 8-9 | 25-27 | 6 | 9,255 | Paul Splittorff | Paul Thormodsgard | Dave Johnson | Larry Gura | | 261 | 247 | 14 |
| 1977-06-09 | @ MIN | 53 | W 7-2 | 26-27 | 5 | 9,912 | Andy Hassler | Pete Redfern | Andy Hassler | Pete Redfern | Steve Mingori | 268 | 249 | 19 |
| 1977-06-10 | @ MIL | 54 | L 3-4 | 26-28 | 5 | 14,115 | Doug Bird | Jim Slaton | Jim Slaton | Larry Gura | Bill Castro | 271 | 253 | 18 |
| 1977-06-11 | @ MIL | 55 | W 6-0 | 27-28 | 5 | 27,401 | Dennis Leonard | Lary Sorensen | Dennis Leonard | Lary Sorensen | | 277 | 253 | 24 |
| 1977-06-12 | @ MIL | 56 | L 0-4 | 27-29 | 5 | 15,733 | Jim Colborn | Jerry Augustine | Jerry Augustine | Jim Colborn | | 277 | 257 | 20 |
| 1977-06-13 | @ NYA | 57 | W 8-3 | 28-29 | 5 | 22,420 | Paul Splittorff | Mike Torrez | Paul Splittorff | Mike Torrez | Steve Mingori | 285 | 260 | 25 |
| 1977-06-14 | @ NYA | 58 | L 2-4 | 28-30 | 6 | 19,559 | Andy Hassler | Don Gullett | Don Gullett | Andy Hassler | | 287 | 264 | 23 |
| 1977-06-16 | @ NYA | 59 | L 0-7 | 28-31 | 5 | 26,391 | Dennis Leonard | Ron Guidry | Ron Guidry | Dennis Leonard | | 287 | 271 | 16 |
| 1977-06-17 | vs MIN | 60 | W 7-1 | 29-31 | 5 | 24,436 | Jim Colborn | Geoff Zahn | Jim Colborn | Geoff Zahn | | 294 | 272 | 22 |
| 1977-06-18 | vs MIN | 61 | W 2-1 | 30-31 | 5 | 35,515 | Paul Splittorff | Bill Butler | Paul Splittorff | Bill Butler | Mark Littell | 296 | 273 | 23 |
| 1977-06-19 | vs MIN | 62 | W 8-7 | 31-31 | 4 | 36,912 | Andy Hassler | Dave Goltz | Larry Gura | Dave Johnson | | 304 | 280 | 24 |
| 1977-06-20 | vs SEA | 63 | L 2-4 | 31-32 | 5 | 21,475 | Dennis Leonard | Gary Wheelock | Gary Wheelock | Dennis Leonard | Enrique Romo | 306 | 284 | 22 |
| 1977-06-21 | vs SEA | 64 | W 13-3 | 32-32 | 3 | 10,958 | Jim Colborn | Glenn Abbott | Jim Colborn | Glenn Abbott | | 319 | 287 | 32 |
| 1977-06-22 | vs SEA | 65 | W 4-3 | 33-32 | 4 | 22,140 | Paul Splittorff | Dick Pole | Doug Bird | Dick Pole | Mark Littell | 323 | 290 | 33 |
| 1977-06-23 | vs SEA | 66 | L 6-8 | 33-33 | 3 | 13,520 | Andy Hassler | Rick Jones | Enrique Romo | Mark Littell | | 329 | 298 | 31 |
| 1977-06-24 | @ OAK | 67 | W 3-0 | 34-33 | 4 | 4,733 | Dennis Leonard | Doc Medich | Dennis Leonard | Doc Medich | | 332 | 298 | 34 |
| 1977-06-25 | @ OAK | 68 | W 6-4 | 35-33 | 3 | 12,667 | Jim Colborn | Mike Norris | Jim Colborn | Mike Norris | Mark Littell | 338 | 302 | 36 |
| 1977-06-26 | @ OAK | 69 | L 3-7 | 36-34 | 4 | 0 | Paul Splittorff | Vida Blue | Vida Blue | Paul Splittorff | Dave Giusti | 341 | 309 | 32 |
| 1977-06-26 | @ OAK | 70 | W 9-3 | 36-34 | 4 | 9,404 | Marty Pattin | Rick Langford | Marty Pattin | Rick Langford | Larry Gura | 350 | 312 | 38 |
| 1977-06-27 | @ CAL | 71 | W 7-2 | 37-34 | 3 | 14,794 | Andy Hassler | Wayne Simpson | Andy Hassler | Wayne Simpson | | 357 | 314 | 43 |
| 1977-06-28 | @ CAL | 72 | W 3-1 | 38-34 | 3 | 16,103 | Dennis Leonard | Frank Tanana | Dennis Leonard | Frank Tanana | | 360 | 315 | 45 |
| 1977-06-29 | @ CAL | 73 | L 0-7 | 38-35 | 3 | 17,550 | Jim Colborn | Nolan Ryan | Nolan Ryan | Jim Colborn | | 360 | 322 | 38 |
| 1977-07-01 | @ CLE | 74 | W 12-2 | 39-35 | 3 | 16,460 | Paul Splittorff | Rick Waits | Marty Pattin | Rick Waits | | 372 | 324 | 48 |
| 1977-07-02 | @ CLE | 75 | W 1-0 | 40-35 | 3 | 16,227 | Andy Hassler | Dennis Eckersley | Andy Hassler | Dennis Eckersley | | 373 | 324 | 49 |
| 1977-07-03 | @ CLE | 76 | L 3-6 | 40-36 | 3 | 54,690 | Dennis Leonard | Pat Dobson | Pat Dobson | Dennis Leonard | Jim Kern | 376 | 330 | 46 |
| 1977-07-04 | @ TEX | 77 | W 1-0 | 41-36 | 3 | 34,660 | Jim Colborn | Gaylord Perry | Jim Colborn | Gaylord Perry | Mark Littell | 377 | 330 | 47 |
| 1977-07-05 | @ TEX | 78 | W 6-4 | 42-36 | 3 | 11,036 | Doug Bird | Bert Blyleven | Larry Gura | Bert Blyleven | Mark Littell | 383 | 334 | 49 |
| 1977-07-06 | vs MIL | 79 | W 8-7 | 43-36 | 3 | 22,804 | Andy Hassler | Moose Haas | Marty Pattin | Bill Castro | | 391 | 341 | 50 |
| 1977-07-08 | vs OAK | 80 | W 6-2 | 44-36 | 3 | 27,647 | Dennis Leonard | Vida Blue | Dennis Leonard | Vida Blue | | 397 | 343 | 54 |
| 1977-07-09 | vs OAK | 81 | L 1-7 | 44-37 | 3 | 35,175 | Jim Colborn | Rick Langford | Rick Langford | Jim Colborn | | 398 | 350 | 48 |
| 1977-07-10 | vs OAK | 82 | W 5-4 | 45-37 | 3 | 21,677 | Paul Splittorff | Doc Medich | Doug Bird | Dave Giusti | | 403 | 354 | 49 |
| 1977-07-11 | @ CHA | 83 | L 2-4 | 45-38 | 3 | 22,320 | Larry Gura | Francisco Barrios | Francisco Barrios | Larry Gura | | 405 | 358 | 47 |
| 1977-07-12 | @ CHA | 84 | W 8-3 | 46-38 | 2 | 32,514 | Dennis Leonard | Steve Stone | Dennis Leonard | Steve Stone | | 413 | 361 | 52 |
| 1977-07-13 | vs DET | 85 | W 6-4 | 47-38 | 2 | 19,418 | Andy Hassler | Fernando Arroyo | Doug Bird | Fernando Arroyo | Mark Littell | 419 | 365 | 54 |
| 1977-07-14 | vs DET | 86 | W 4-3 | 48-38 | 2 | 20,755 | Jim Colborn | Bob Sykes | Jim Colborn | Bob Sykes | Larry Gura | 423 | 368 | 55 |
| 1977-07-15 | vs NYA | 87 | W 7-4 | 49-38 | 2 | 36,743 | Paul Splittorff | Ron Guidry | Paul Splittorff | Ron Guidry | Steve Mingori | 430 | 372 | 58 |
| 1977-07-16 | vs NYA | 88 | W 5-1 | 50-38 | 2 | 40,054 | Dennis Leonard | Mike Torrez | Dennis Leonard | Mike Torrez | | 435 | 373 | 62 |
| 1977-07-17 | vs NYA | 89 | W 8-4 | 51-38 | 2 | 38,699 | Andy Hassler | Ken Clay | Andy Hassler | Ken Clay | | 443 | 377 | 66 |
| 1977-07-21 | @ DET | 90 | W 8-1 | 52-38 | 2 | 15,262 | Paul Splittorff | Dave Roberts | Paul Splittorff | Dave Roberts | | 451 | 378 | 73 |
| 1977-07-22 | @ DET | 91 | W 5-4 | 53-38 | 2 | 22,758 | Dennis Leonard | Fernando Arroyo | Doug Bird | John Hiller | | 456 | 382 | 74 |
| 1977-07-23 | @ DET | 92 | L 4-5 | 53-39 | 2 | 30,156 | Jim Colborn | Dave Rozema | Dave Rozema | Larry Gura | | 460 | 387 | 73 |
| 1977-07-24 | @ NYA | 93 | L 1-3 | 53-40 | 2 | 41,060 | Andy Hassler | Don Gullett | Don Gullett | Andy Hassler | Dick Tidrow | 461 | 390 | 71 |
| 1977-07-27 | vs CLE | 94 | W 5-4 | 54-40 | 2 | 23,818 | Dennis Leonard | Al Fitzmorris | Doug Bird | Rick Waits | | 466 | 394 | 72 |
| 1977-07-28 | vs CLE | 95 | W 5-4 | 55-40 | 2 | 25,211 | Jim Colborn | Dennis Eckersley | Doug Bird | Dennis Eckersley | | 471 | 398 | 73 |
| 1977-07-29 | @ CHA | 96 | L 8-11 | 55-41 | 2 | 45,919 | Andy Hassler | Ken Kravec | Dave Hamilton | Mark Littell | | 479 | 409 | 70 |
| 1977-07-30 | @ CHA | 97 | L 4-6 | 55-42 | 2 | 34,945 | Paul Splittorff | Francisco Barrios | Francisco Barrios | Doug Bird | Dave Hamilton | 483 | 415 | 68 |
| 1977-07-31 | @ CHA | 98 | L 4-5 | 56-43 | 2 | 0 | Marty Pattin | Steve Stone | Lerrin LaGrow | Doug Bird | | 487 | 420 | 67 |
| 1977-07-31 | @ CHA | 99 | W 8-4 | 56-43 | 2 | 50,412 | Dennis Leonard | Chris Knapp | Dennis Leonard | Chris Knapp | | 495 | 424 | 71 |
| 1977-08-01 | @ MIN | 100 | L 5-9 | 56-44 | 3 | 19,370 | Jim Colborn | Geoff Zahn | Geoff Zahn | Jim Colborn | Tom Johnson | 500 | 433 | 67 |
| 1977-08-02 | @ MIN | 101 | L 4-9 | 56-45 | 3 | 24,691 | Andy Hassler | Dave Goltz | Dave Goltz | Andy Hassler | | 504 | 442 | 62 |
| 1977-08-03 | vs TOR | 102 | W 7-4 | 57-45 | 3 | 16,775 | Paul Splittorff | Jerry Garvin | Paul Splittorff | Jerry Garvin | Doug Bird | 511 | 446 | 65 |
| 1977-08-04 | vs TOR | 103 | W 8-0 | 58-45 | 3 | 17,661 | Larry Gura | Jesse Jefferson | Larry Gura | Jesse Jefferson | | 519 | 446 | 73 |
| 1977-08-05 | vs CHA | 104 | W 12-2 | 59-45 | 3 | 38,079 | Dennis Leonard | Chris Knapp | Dennis Leonard | Chris Knapp | | 531 | 448 | 83 |
| 1977-08-06 | vs CHA | 105 | W 6-3 | 60-45 | 3 | 40,099 | Jim Colborn | Wilbur Wood | Jim Colborn | Dave Hamilton | Doug Bird | 537 | 451 | 86 |
| 1977-08-07 | vs CHA | 106 | W 3-2 | 61-45 | 3 | 40,247 | Marty Pattin | Ken Kravec | Marty Pattin | Ken Kravec | | 540 | 453 | 87 |
| 1977-08-08 | vs CAL | 107 | L 4-6 | 61-47 | 4 | 0 | Andy Hassler | Nolan Ryan | Nolan Ryan | Andy Hassler | Dave LaRoche | 544 | 459 | 85 |
| 1977-08-08 | vs CAL | 108 | L 2-7 | 61-47 | 4 | 40,525 | Paul Splittorff | Wayne Simpson | Wayne Simpson | Paul Splittorff | | 546 | 466 | 80 |
| 1977-08-10 | @ TEX | 109 | W 4-3 | 62-47 | 3 | 26,349 | Dennis Leonard | Gaylord Perry | Dennis Leonard | Gaylord Perry | Larry Gura | 550 | 469 | 81 |
| 1977-08-11 | @ TEX | 110 | L 3-8 | 62-48 | 4 | 21,770 | Jim Colborn | Doyle Alexander | Doyle Alexander | Jim Colborn | Roger Moret | 553 | 477 | 76 |
| 1977-08-12 | @ TOR | 111 | W 9-8 | 63-48 | 4 | 19,143 | Andy Hassler | Dave Lemanczyk | Marty Pattin | Dave Lemanczyk | Doug Bird | 562 | 485 | 77 |
| 1977-08-13 | @ TOR | 112 | W 5-3 | 64-48 | 3 | 25,027 | Paul Splittorff | Jim Clancy | Paul Splittorff | Jim Clancy | Doug Bird | 567 | 488 | 79 |
| 1977-08-14 | @ TOR | 113 | L 3-6 | 64-49 | 4 | 27,430 | Dennis Leonard | Jerry Garvin | Tom Murphy | Dennis Leonard | Pete Vuckovich | 570 | 494 | 76 |
| 1977-08-15 | @ BOS | 114 | L 1-2 | 64-50 | 4 | 33,424 | Jim Colborn | Reggie Cleveland | Reggie Cleveland | Jim Colborn | Bill Campbell | 571 | 496 | 75 |
| 1977-08-16 | @ BOS | 115 | L 3-5 | 64-51 | 4 | 35,748 | Mark Littell | Don Aase | Bill Campbell | Doug Bird | | 574 | 501 | 73 |
| 1977-08-17 | @ CLE | 116 | W 5-3 | 65-51 | 4 | 5,921 | Paul Splittorff | Jim Bibby | Marty Pattin | Jim Bibby | Doug Bird | 579 | 504 | 75 |
| 1977-08-18 | @ CLE | 117 | W 4-0 | 66-51 | 4 | 6,692 | Dennis Leonard | Wayne Garland | Dennis Leonard | Wayne Garland | | 583 | 504 | 79 |
| 1977-08-19 | vs BOS | 118 | W 9-3 | 67-51 | 3 | 36,725 | Jim Colborn | Mike Paxton | Jim Colborn | Mike Paxton | | 592 | 507 | 85 |
| 1977-08-20 | vs BOS | 119 | W 5-2 | 68-51 | 1 | 40,502 | Mark Littell | Luis Tiant | Mark Littell | Luis Tiant | Doug Bird | 597 | 509 | 88 |
| 1977-08-21 | vs BOS | 120 | W 6-4 | 69-51 | 1 | 31,199 | Paul Splittorff | Don Aase | Doug Bird | Bill Campbell | | 603 | 513 | 90 |
| 1977-08-22 | vs BAL | 121 | W 8-7 | 70-51 | 1 | 36,328 | Dennis Leonard | Jim Palmer | Steve Mingori | Tippy Martinez | | 611 | 520 | 91 |
| 1977-08-23 | vs BAL | 122 | W 5-2 | 71-51 | 1 | 27,602 | Jim Colborn | Mike Flanagan | Jim Colborn | Mike Flanagan | Larry Gura | 616 | 522 | 94 |
| 1977-08-24 | @ MIL | 123 | W 4-3 | 72-51 | 1 | 9,082 | Marty Pattin | Jim Slaton | Doug Bird | Lary Sorensen | Steve Mingori | 620 | 525 | 95 |
| 1977-08-25 | @ MIL | 124 | W 9-6 | 73-51 | 1 | 8,225 | Paul Splittorff | Jerry Augustine | Paul Splittorff | Jerry Augustine | Doug Bird | 629 | 531 | 98 |
| 1977-08-26 | @ BAL | 125 | W 3-2 | 74-51 | 1 | 21,511 | Dennis Leonard | Jim Palmer | Dennis Leonard | Jim Palmer | | 632 | 533 | 99 |
| 1977-08-27 | @ BAL | 126 | L 2-4 | 74-52 | 1 | 17,074 | Jim Colborn | Mike Flanagan | Mike Flanagan | Jim Colborn | Dennis Martinez | 634 | 537 | 97 |
| 1977-08-28 | @ BAL | 127 | W 5-0 | 75-52 | 1 | 15,764 | Andy Hassler | Ross Grimsley | Andy Hassler | Ross Grimsley | Doug Bird | 639 | 537 | 102 |
| 1977-08-29 | @ NYA | 128 | L 3-5 | 75-53 | 1 | 31,269 | Paul Splittorff | Catfish Hunter | Sparky Lyle | Steve Mingori | | 642 | 542 | 100 |
| 1977-08-30 | vs TEX | 129 | L 2-8 | 75-54 | 1 | 27,154 | Dennis Leonard | Gaylord Perry | Gaylord Perry | Dennis Leonard | | 644 | 550 | 94 |
| 1977-08-31 | vs TEX | 130 | W 5-4 | 76-54 | 1 | 25,223 | Jim Colborn | Doyle Alexander | Jim Colborn | Doyle Alexander | Doug Bird | 649 | 554 | 95 |
| 1977-09-02 | vs MIL | 131 | W 3-1 | 78-54 | 1 | 0 | Andy Hassler | Moose Haas | Andy Hassler | Moose Haas | Doug Bird | 652 | 555 | 97 |
| 1977-09-02 | vs MIL | 132 | W 3-0 | 78-54 | 1 | 22,318 | Paul Splittorff | Bill Travers | Paul Splittorff | Bill Travers | | 655 | 555 | 100 |
| 1977-09-03 | vs MIL | 133 | W 3-2 | 79-54 | 1 | 35,604 | Dennis Leonard | Lary Sorensen | Dennis Leonard | Lary Sorensen | | 658 | 557 | 101 |
| 1977-09-04 | vs MIL | 134 | W 6-2 | 80-54 | 1 | 24,530 | Marty Pattin | Mike Caldwell | Marty Pattin | Mike Caldwell | | 664 | 559 | 105 |
| 1977-09-05 | @ SEA | 135 | W 8-4 | 81-54 | 1 | 11,750 | Jim Colborn | Dick Pole | Jim Colborn | Dick Pole | | 672 | 563 | 109 |
| 1977-09-06 | @ SEA | 136 | W 10-0 | 82-54 | 1 | 7,191 | Paul Splittorff | Rick Honeycutt | Paul Splittorff | Rick Honeycutt | | 682 | 563 | 119 |
| 1977-09-07 | @ SEA | 137 | W 10-7 | 83-54 | 1 | 7,814 | Andy Hassler | Glenn Abbott | Mark Littell | Enrique Romo | Doug Bird | 692 | 570 | 122 |
| 1977-09-08 | @ SEA | 138 | W 7-2 | 84-54 | 1 | 7,785 | Dennis Leonard | John Montague | Dennis Leonard | John Montague | | 699 | 572 | 127 |
| 1977-09-09 | @ MIN | 139 | W 6-3 | 85-54 | 1 | 11,970 | Marty Pattin | Paul Thormodsgard | Marty Pattin | Paul Thormodsgard | Doug Bird | 705 | 575 | 130 |
| 1977-09-10 | @ MIN | 140 | W 10-1 | 86-54 | 1 | 23,601 | Paul Splittorff | Dave Goltz | Paul Splittorff | Dave Goltz | | 715 | 576 | 139 |
| 1977-09-11 | @ MIN | 141 | W 4-1 | 87-54 | 1 | 11,563 | Andy Hassler | Geoff Zahn | Andy Hassler | Geoff Zahn | | 719 | 577 | 142 |
| 1977-09-14 | vs OAK | 142 | W 5-2 | 89-54 | 1 | 0 | Jim Colborn | Rick Langford | Jim Colborn | Rick Langford | Larry Gura | 724 | 579 | 145 |
| 1977-09-14 | vs OAK | 143 | W 6-0 | 89-54 | 1 | 16,791 | Dennis Leonard | Matt Keough | Dennis Leonard | Matt Keough | | 730 | 579 | 151 |
| 1977-09-15 | vs OAK | 144 | W 7-6 | 91-54 | 1 | 0 | Andy Hassler | Vida Blue | Doug Bird | Doug Bair | | 737 | 585 | 152 |
| 1977-09-15 | vs OAK | 145 | W 5-4 | 91-54 | 1 | 15,182 | Paul Splittorff | Pablo Torrealba | Steve Mingori | Doug Bair | | 742 | 589 | 153 |
| 1977-09-16 | vs SEA | 146 | L 1-4 | 91-55 | 1 | 19,072 | Marty Pattin | Doc Medich | Doc Medich | Marty Pattin | | 743 | 593 | 150 |
| 1977-09-17 | vs SEA | 147 | W 7-5 | 92-55 | 1 | 27,067 | Mark Littell | Paul Mitchell | Larry Gura | Diego Segui | | 750 | 598 | 152 |
| 1977-09-18 | vs SEA | 148 | W 8-3 | 93-55 | 1 | 33,397 | Dennis Leonard | Glenn Abbott | Dennis Leonard | Glenn Abbott | | 758 | 601 | 157 |
| 1977-09-20 | vs MIN | 149 | W 4-2 | 94-55 | 1 | 24,549 | Paul Splittorff | Geoff Zahn | Paul Splittorff | Geoff Zahn | | 762 | 603 | 159 |
| 1977-09-21 | vs MIN | 150 | W 10-5 | 95-55 | 1 | 22,909 | Jim Colborn | Dave Johnson | Jim Colborn | Dave Johnson | | 772 | 608 | 164 |
| 1977-09-23 | @ CAL | 151 | W 7-3 | 96-55 | 1 | 10,888 | Dennis Leonard | Wayne Simpson | Dennis Leonard | Wayne Simpson | | 779 | 611 | 168 |
| 1977-09-24 | @ CAL | 152 | W 4-3 | 97-55 | 1 | 8,989 | Mark Littell | Balor Moore | Mark Littell | Balor Moore | Doug Bird | 783 | 614 | 169 |
| 1977-09-25 | @ CAL | 153 | W 6-3 | 99-55 | 1 | 0 | Paul Splittorff | Ken Brett | Paul Splittorff | Ken Brett | George Throop | 789 | 617 | 172 |
| 1977-09-25 | @ CAL | 154 | W 6-2 | 99-55 | 1 | 22,943 | Marty Pattin | Nolan Ryan | Marty Pattin | Nolan Ryan | | 795 | 619 | 176 |
| 1977-09-26 | @ OAK | 155 | L 1-7 | 99-56 | 1 | 3,909 | Jim Colborn | Joe Coleman | Joe Coleman | Jim Colborn | | 796 | 626 | 170 |
| 1977-09-27 | @ OAK | 156 | L 2-4 | 99-58 | 1 | 0 | Andy Hassler | Matt Keough | Bob Lacey | Randy McGilberry | | 798 | 630 | 168 |
| 1977-09-27 | @ OAK | 157 | L 2-3 | 99-58 | 1 | 3,792 | Dennis Leonard | Steve McCatty | Steve Dunning | Dennis Leonard | Doug Bair | 800 | 633 | 167 |
| 1977-09-28 | @ OAK | 158 | L 5-6 | 99-59 | 1 | 3,056 | Mark Littell | Vida Blue | Bob Lacey | Gary Lance | | 805 | 639 | 166 |
| 1977-09-29 | vs CAL | 159 | W 6-3 | 100-59 | 1 | 14,334 | Larry Gura | Wayne Simpson | Larry Gura | Wayne Simpson | Doug Bird | 811 | 642 | 169 |
| 1977-09-30 | vs CAL | 160 | W 8-5 | 101-59 | 1 | 33,289 | Paul Splittorff | Ken Brett | Marty Pattin | Ken Brett | | 819 | 647 | 172 |
| 1977-10-01 | vs CAL | 161 | L 1-4 | 101-60 | 1 | 23,497 | Andy Hassler | Mike Barlow | Mike Barlow | Andy Hassler | Dave LaRoche | 820 | 651 | 169 |
| 1977-10-02 | vs CAL | 162 | W 2-0 | 102-60 | 1 | 22,404 | Dennis Leonard | Paul Hartzell | Dennis Leonard | Paul Hartzell | | 822 | 651 | 171 |