| 1987-04-07 | @ NYN | 1 | L 2-3 | 0-1 | 6 | 46,102 | Bob Patterson | Bob Ojeda | Bob Ojeda | Bob Patterson | Jesse Orosco | 2 | 3 | -1 |
| 1987-04-09 | @ NYN | 2 | L 2-4 | 0-2 | 6 | 20,598 | Doug Drabek | Ron Darling | Gene Walter | Logan Easley | Jesse Orosco | 4 | 7 | -3 |
| 1987-04-10 | vs SLN | 3 | W 4-3 | 1-2 | 4 | 52,119 | Rick Reuschel | Greg Mathews | Don Robinson | Dave LaPoint | | 8 | 10 | -2 |
| 1987-04-11 | vs SLN | 4 | L 3-6 | 1-3 | 4 | 6,720 | Bob Kipper | Bob Forsch | Bob Forsch | Bob Kipper | Todd Worrell | 11 | 16 | -5 |
| 1987-04-12 | vs SLN | 5 | W 7-4 | 2-3 | 4 | 6,749 | Bob Patterson | John Tudor | Bob Patterson | John Tudor | Don Robinson | 18 | 20 | -2 |
| 1987-04-13 | vs SLN | 6 | L 4-8 | 2-4 | 4 | 5,182 | Doug Drabek | Danny Cox | Danny Cox | Doug Drabek | Ricky Horton | 22 | 28 | -6 |
| 1987-04-15 | @ CHN | 7 | W 3-1 | 3-4 | 4 | 5,369 | Rick Reuschel | Steve Trout | Don Robinson | Dickie Noles | | 25 | 29 | -4 |
| 1987-04-16 | @ CHN | 8 | W 6-0 | 4-4 | 2 | 6,956 | Bob Kipper | Ed Lynch | Bob Kipper | Ed Lynch | | 31 | 29 | 2 |
| 1987-04-17 | vs PHI | 9 | L 2-6 | 4-5 | 4 | 10,105 | Bob Patterson | Shane Rawley | Steve Bedrosian | Barry Jones | | 33 | 35 | -2 |
| 1987-04-18 | vs PHI | 10 | L 6-8 | 4-6 | 4 | 19,361 | Bob Walk | Don Carman | Kent Tekulve | Don Robinson | | 39 | 43 | -4 |
| 1987-04-19 | vs PHI | 11 | W 5-2 | 5-6 | 3 | 7,962 | Doug Drabek | Bruce Ruffin | Doug Drabek | Bruce Ruffin | Don Robinson | 44 | 45 | -1 |
| 1987-04-20 | vs NYN | 12 | W 9-6 | 6-6 | 3 | 8,267 | Rick Reuschel | Rick Aguilera | Logan Easley | Randy Myers | | 53 | 51 | 2 |
| 1987-04-21 | vs NYN | 13 | L 6-9 | 6-7 | 3 | 13,368 | Bob Kipper | Bob Ojeda | Bob Ojeda | Bob Kipper | Jesse Orosco | 59 | 60 | -1 |
| 1987-04-22 | vs NYN | 14 | L 7-8 | 6-8 | 4 | 13,911 | Bob Patterson | Ron Darling | Ron Darling | Bob Patterson | Jesse Orosco | 66 | 68 | -2 |
| 1987-04-25 | @ PHI | 15 | L 2-3 | 6-9 | 5 | 18,553 | Doug Drabek | Don Carman | Don Carman | Doug Drabek | Kent Tekulve | 68 | 71 | -3 |
| 1987-04-26 | @ PHI | 16 | L 4-6 | 6-10 | 5 | 30,234 | Rick Reuschel | Bruce Ruffin | Bruce Ruffin | Rick Reuschel | Steve Bedrosian | 72 | 77 | -5 |
| 1987-04-28 | vs LAN | 17 | W 6-1 | 7-10 | 5 | 3,420 | Bob Kipper | Fernando Valenzuela | Bob Kipper | Fernando Valenzuela | Logan Easley | 78 | 78 | 0 |
| 1987-04-29 | vs LAN | 18 | L 2-10 | 7-11 | 5 | 4,668 | Bob Patterson | Bob Welch | Bob Welch | Bob Patterson | | 80 | 88 | -8 |
| 1987-04-30 | vs LAN | 19 | W 5-4 | 8-11 | 4 | 7,114 | Dorn Taylor | Orel Hershiser | John Smiley | Orel Hershiser | Don Robinson | 85 | 92 | -7 |
| 1987-05-01 | vs SFN | 20 | W 4-2 | 9-11 | 4 | 10,651 | Rick Reuschel | Mark Davis | Rick Reuschel | Mark Davis | | 89 | 94 | -5 |
| 1987-05-02 | vs SFN | 21 | W 1-0 | 10-11 | 4 | 14,736 | Bob Walk | Kelly Downs | John Smiley | Kelly Downs | Don Robinson | 90 | 94 | -4 |
| 1987-05-04 | @ SDN | 22 | L 5-9 | 10-12 | 4 | 22,306 | Bob Patterson | Storm Davis | Storm Davis | Bob Patterson | Lance McCullers | 95 | 103 | -8 |
| 1987-05-05 | @ SDN | 23 | W 10-8 | 11-12 | 4 | 12,642 | Dorn Taylor | Eric Show | Bob Walk | Eric Show | Don Robinson | 105 | 111 | -6 |
| 1987-05-06 | @ LAN | 24 | L 1-2 | 11-13 | 5 | 32,789 | Rick Reuschel | Orel Hershiser | Orel Hershiser | Rick Reuschel | | 106 | 113 | -7 |
| 1987-05-07 | @ LAN | 25 | L 3-6 | 11-14 | 5 | 27,621 | Bob Kipper | Rick Honeycutt | Rick Honeycutt | Bob Kipper | Matt Young | 109 | 119 | -10 |
| 1987-05-08 | @ SFN | 26 | L 2-4 | 11-15 | 5 | 17,985 | Brian Fisher | Kelly Downs | Kelly Downs | Brian Fisher | Scott Garrelts | 111 | 123 | -12 |
| 1987-05-09 | @ SFN | 27 | L 4-9 | 11-16 | 5 | 17,609 | Bob Patterson | Mike Krukow | Atlee Hammaker | Bob Walk | | 115 | 132 | -17 |
| 1987-05-10 | @ SFN | 28 | W 4-1 | 12-16 | 5 | 29,652 | Dorn Taylor | Mark Grant | Don Robinson | Scott Garrelts | | 119 | 133 | -14 |
| 1987-05-12 | vs SDN | 29 | W 12-5 | 13-16 | 5 | 5,744 | Rick Reuschel | Andy Hawkins | Rick Reuschel | Andy Hawkins | | 131 | 138 | -7 |
| 1987-05-13 | vs SDN | 30 | W 9-5 | 14-16 | 4 | 7,916 | Bob Kipper | Dave Dravecky | Bob Walk | Craig Lefferts | Don Robinson | 140 | 143 | -3 |
| 1987-05-14 | vs SDN | 31 | W 10-3 | 15-16 | 3 | 5,592 | Brian Fisher | Eric Show | Brian Fisher | Eric Show | John Smiley | 150 | 146 | 4 |
| 1987-05-15 | vs ATL | 32 | L 3-9 | 15-17 | 4 | 18,137 | Dorn Taylor | Charlie Puleo | Paul Assenmacher | Hipolito Pena | | 153 | 155 | -2 |
| 1987-05-16 | vs ATL | 33 | L 8-10 | 15-18 | 4 | 16,939 | Bob Walk | Zane Smith | Jeff Dedmon | John Smiley | Gene Garber | 161 | 165 | -4 |
| 1987-05-17 | vs ATL | 34 | W 6-5 | 16-18 | 4 | 26,469 | Rick Reuschel | David Palmer | Don Robinson | Ed Olwine | | 167 | 170 | -3 |
| 1987-05-18 | vs HOU | 35 | L 1-4 | 16-19 | 4 | 4,213 | Bob Kipper | Mike Scott | Mike Scott | Bob Kipper | | 168 | 174 | -6 |
| 1987-05-19 | vs HOU | 36 | W 5-2 | 17-19 | 4 | 6,238 | Brian Fisher | Jim Deshaies | John Smiley | Dave Meads | Don Robinson | 173 | 176 | -3 |
| 1987-05-20 | vs HOU | 37 | W 5-3 | 18-19 | 4 | 14,096 | Dorn Taylor | Danny Darwin | Dorn Taylor | Danny Darwin | Hipolito Pena | 178 | 179 | -1 |
| 1987-05-22 | @ CIN | 38 | W 4-1 | 19-19 | 3 | 25,678 | Rick Reuschel | Jerry Reuss | Rick Reuschel | Ron Robinson | John Smiley | 182 | 180 | 2 |
| 1987-05-23 | @ CIN | 39 | W 3-2 | 20-19 | 3 | 33,887 | Bob Kipper | Pat Pacillo | Bob Kipper | Pat Pacillo | Don Robinson | 185 | 182 | 3 |
| 1987-05-24 | @ CIN | 40 | W 7-2 | 21-19 | 3 | 30,082 | Brian Fisher | Tom Browning | Brian Fisher | Tom Browning | | 192 | 184 | 8 |
| 1987-05-25 | @ HOU | 41 | L 2-7 | 21-20 | 3 | 9,618 | Dorn Taylor | Jim Deshaies | Jim Deshaies | Dorn Taylor | | 194 | 191 | 3 |
| 1987-05-26 | @ HOU | 42 | L 3-10 | 21-21 | 4 | 9,632 | Doug Drabek | Danny Darwin | Dave Meads | Hipolito Pena | | 197 | 201 | -4 |
| 1987-05-27 | @ HOU | 43 | L 2-7 | 21-22 | 5 | 14,863 | Rick Reuschel | Nolan Ryan | Aurelio Lopez | Don Robinson | Dave Smith | 199 | 208 | -9 |
| 1987-05-29 | vs CIN | 44 | L 6-13 | 21-23 | 5 | 26,835 | Bob Kipper | Pat Pacillo | Guy Hoffman | Bob Kipper | | 205 | 221 | -16 |
| 1987-05-30 | vs CIN | 45 | L 2-6 | 21-24 | 6 | 28,853 | Dorn Taylor | Bill Gullickson | Bill Gullickson | Dorn Taylor | | 207 | 227 | -20 |
| 1987-05-31 | vs CIN | 46 | L 2-5 | 21-25 | 6 | 24,786 | Doug Drabek | Ted Power | Ted Power | Doug Drabek | John Franco | 209 | 232 | -23 |
| 1987-06-02 | @ ATL | 47 | W 4-1 | 22-25 | 6 | 8,890 | Rick Reuschel | Rick Mahler | Rick Reuschel | Rick Mahler | | 213 | 233 | -20 |
| 1987-06-03 | @ ATL | 48 | W 4-1 | 23-25 | 5 | 5,368 | Bob Kipper | David Palmer | Bob Kipper | David Palmer | | 217 | 234 | -17 |
| 1987-06-04 | @ ATL | 49 | L 3-8 | 23-26 | 6 | 6,460 | Brian Fisher | Zane Smith | Zane Smith | Brian Fisher | Jeff Dedmon | 220 | 242 | -22 |
| 1987-06-05 | @ NYN | 50 | L 1-5 | 23-27 | 6 | 51,402 | Mike Dunne | Dwight Gooden | Dwight Gooden | Mike Dunne | Jesse Orosco | 221 | 247 | -26 |
| 1987-06-06 | @ NYN | 51 | L 2-4 | 23-28 | 6 | 47,603 | Doug Drabek | Sid Fernandez | Sid Fernandez | Doug Drabek | Roger McDowell | 223 | 251 | -28 |
| 1987-06-07 | @ NYN | 52 | L 4-5 | 24-29 | 6 | 0 | Rick Reuschel | John Mitchell | Roger McDowell | Don Robinson | | 227 | 256 | -29 |
| 1987-06-07 | @ NYN | 53 | W 10-9 | 24-29 | 6 | 42,516 | Bob Kipper | Tom Edens | Dorn Taylor | Roger McDowell | Don Robinson | 237 | 265 | -28 |
| 1987-06-08 | @ MON | 54 | L 1-7 | 24-30 | 6 | 11,973 | Brian Fisher | Neal Heaton | Neal Heaton | Brian Fisher | | 238 | 272 | -34 |
| 1987-06-09 | @ MON | 55 | W 8-1 | 25-30 | 6 | 13,132 | Mike Dunne | Floyd Youmans | Mike Dunne | Lary Sorensen | | 246 | 273 | -27 |
| 1987-06-10 | @ MON | 56 | L 3-4 | 25-31 | 6 | 10,134 | Doug Drabek | Dennis Martinez | Bob McClure | Don Robinson | | 249 | 277 | -28 |
| 1987-06-12 | vs NYN | 57 | L 2-10 | 25-32 | 6 | 27,465 | Rick Reuschel | Sid Fernandez | Sid Fernandez | Rick Reuschel | | 251 | 287 | -36 |
| 1987-06-13 | vs NYN | 58 | W 4-3 | 26-32 | 6 | 26,894 | Bob Kipper | Ron Darling | Don Robinson | Randy Myers | | 255 | 290 | -35 |
| 1987-06-14 | vs NYN | 59 | L 3-7 | 26-33 | 6 | 30,477 | Brian Fisher | John Mitchell | Doug Sisk | Brian Fisher | | 258 | 297 | -39 |
| 1987-06-15 | @ SLN | 60 | W 3-1 | 27-33 | 6 | 30,887 | Mike Dunne | Greg Mathews | Mike Dunne | Greg Mathews | | 261 | 298 | -37 |
| 1987-06-16 | @ SLN | 61 | L 1-11 | 27-34 | 6 | 27,048 | Doug Drabek | Tim Conroy | Bill Dawley | Doug Drabek | Ricky Horton | 262 | 309 | -47 |
| 1987-06-17 | @ SLN | 62 | W 4-1 | 28-34 | 6 | 30,891 | Rick Reuschel | Bob Forsch | Rick Reuschel | Bob Forsch | | 266 | 310 | -44 |
| 1987-06-18 | @ SLN | 63 | L 6-8 | 28-35 | 6 | 35,264 | Bob Kipper | Lee Tunnell | Bill Dawley | Don Robinson | | 272 | 318 | -46 |
| 1987-06-19 | @ CHN | 64 | W 4-0 | 29-35 | 6 | 33,529 | Brian Fisher | Dickie Noles | Brian Fisher | Dickie Noles | | 276 | 318 | -42 |
| 1987-06-20 | @ CHN | 65 | W 8-2 | 30-35 | 5 | 34,384 | Mike Dunne | Greg Maddux | Mike Dunne | Greg Maddux | | 284 | 320 | -36 |
| 1987-06-21 | @ CHN | 66 | L 3-6 | 30-36 | 5 | 33,418 | Doug Drabek | Steve Trout | Steve Trout | Doug Drabek | Lee Smith | 287 | 326 | -39 |
| 1987-06-22 | @ CHN | 67 | L 2-3 | 30-37 | 5 | 27,064 | Rick Reuschel | Jamie Moyer | Jamie Moyer | Rick Reuschel | | 289 | 329 | -40 |
| 1987-06-23 | vs MON | 68 | L 2-8 | 30-38 | 6 | 9,276 | Bob Kipper | Neal Heaton | Neal Heaton | Bob Kipper | Jeff Parrett | 291 | 337 | -46 |
| 1987-06-24 | vs MON | 69 | W 9-6 | 31-38 | 5 | 21,564 | Brian Fisher | Jeff Fischer | Brian Fisher | Jeff Fischer | | 300 | 343 | -43 |
| 1987-06-25 | vs MON | 70 | L 2-7 | 31-39 | 5 | 10,836 | Mike Dunne | Dennis Martinez | Dennis Martinez | Mike Dunne | Andy McGaffigan | 302 | 350 | -48 |
| 1987-06-26 | vs CHN | 71 | W 5-2 | 32-39 | 5 | 20,408 | Doug Drabek | Greg Maddux | Barry Jones | Greg Maddux | Don Robinson | 307 | 352 | -45 |
| 1987-06-27 | vs CHN | 72 | W 7-0 | 33-39 | 5 | 31,595 | Rick Reuschel | Jamie Moyer | Rick Reuschel | Jamie Moyer | | 314 | 352 | -38 |
| 1987-06-28 | vs CHN | 73 | W 6-2 | 34-39 | 5 | 25,304 | Bob Kipper | Rick Sutcliffe | Barry Jones | Rick Sutcliffe | | 320 | 354 | -34 |
| 1987-06-29 | @ PHI | 74 | L 5-6 | 34-41 | 6 | 0 | Brian Fisher | Bruce Ruffin | Michael Jackson | Barry Jones | Steve Bedrosian | 325 | 360 | -35 |
| 1987-06-29 | @ PHI | 75 | L 3-11 | 34-41 | 6 | 30,046 | Mike Dunne | Tom Hume | Doug Bair | Mike Dunne | Wally Ritchie | 328 | 371 | -43 |
| 1987-06-30 | @ PHI | 76 | L 4-6 | 34-42 | 6 | 20,598 | Doug Drabek | Kevin Gross | Kevin Gross | Doug Drabek | Steve Bedrosian | 332 | 377 | -45 |
| 1987-07-01 | @ PHI | 77 | L 4-11 | 34-43 | 6 | 19,977 | Dorn Taylor | Shane Rawley | Shane Rawley | Dorn Taylor | | 336 | 388 | -52 |
| 1987-07-03 | vs LAN | 78 | W 6-0 | 35-43 | 6 | 22,454 | Rick Reuschel | Fernando Valenzuela | Rick Reuschel | Fernando Valenzuela | | 342 | 388 | -46 |
| 1987-07-04 | vs LAN | 79 | W 4-2 | 36-43 | 6 | 12,935 | Bob Kipper | Bob Welch | Bob Kipper | Bob Welch | Don Robinson | 346 | 390 | -44 |
| 1987-07-05 | vs LAN | 80 | L 1-6 | 36-44 | 6 | 13,438 | Brian Fisher | Orel Hershiser | Orel Hershiser | Brian Fisher | Matt Young | 347 | 396 | -49 |
| 1987-07-06 | vs SFN | 81 | L 5-7 | 36-46 | 6 | 0 | Mike Dunne | Dave Dravecky | Dave Dravecky | Mike Dunne | Scott Garrelts | 352 | 403 | -51 |
| 1987-07-06 | vs SFN | 82 | L 4-7 | 36-46 | 6 | 11,204 | Doug Drabek | Mike LaCoss | Mike LaCoss | Doug Drabek | Craig Lefferts | 356 | 410 | -54 |
| 1987-07-07 | vs SFN | 83 | W 6-4 | 37-46 | 6 | 7,027 | Bob Walk | Kelly Downs | Brett Gideon | Joe Price | | 362 | 414 | -52 |
| 1987-07-08 | vs SFN | 84 | L 4-8 | 37-47 | 6 | 10,868 | Rick Reuschel | Atlee Hammaker | Jeff Robinson | Brett Gideon | | 366 | 422 | -56 |
| 1987-07-10 | vs SDN | 85 | W 6-5 | 38-47 | 6 | 13,109 | Bob Kipper | Jimmy Jones | Don Robinson | Rich Gossage | | 372 | 427 | -55 |
| 1987-07-11 | vs SDN | 86 | L 1-3 | 38-48 | 6 | 27,476 | Brian Fisher | Mark Grant | Mark Grant | Brian Fisher | Mark Davis | 373 | 430 | -57 |
| 1987-07-12 | vs SDN | 87 | W 4-2 | 39-48 | 6 | 13,276 | Mike Dunne | Eric Show | Mike Dunne | Eric Show | Brett Gideon | 377 | 432 | -55 |
| 1987-07-16 | @ LAN | 88 | L 0-7 | 39-49 | 6 | 32,845 | Bob Kipper | Fernando Valenzuela | Fernando Valenzuela | Bob Kipper | | 377 | 439 | -62 |
| 1987-07-17 | @ LAN | 89 | L 2-3 | 39-50 | 6 | 28,466 | Rick Reuschel | Bob Welch | Matt Young | Don Robinson | | 379 | 442 | -63 |
| 1987-07-18 | @ LAN | 90 | W 4-2 | 40-50 | 6 | 34,864 | Doug Drabek | Orel Hershiser | Doug Drabek | Orel Hershiser | Barry Jones | 383 | 444 | -61 |
| 1987-07-19 | @ LAN | 91 | W 7-2 | 41-50 | 6 | 37,548 | Mike Dunne | Rick Honeycutt | Mike Dunne | Rick Honeycutt | John Smiley | 390 | 446 | -56 |
| 1987-07-20 | @ SFN | 92 | W 7-6 | 42-50 | 6 | 6,919 | Brian Fisher | Mike LaCoss | Brian Fisher | Mike LaCoss | Don Robinson | 397 | 452 | -55 |
| 1987-07-21 | @ SFN | 93 | L 0-7 | 42-51 | 6 | 8,382 | Bob Kipper | Dave Dravecky | Dave Dravecky | Bob Kipper | | 397 | 459 | -62 |
| 1987-07-22 | @ SFN | 94 | W 4-0 | 43-51 | 6 | 14,472 | Rick Reuschel | Kelly Downs | Rick Reuschel | Kelly Downs | | 401 | 459 | -58 |
| 1987-07-23 | @ SDN | 95 | L 1-2 | 43-52 | 6 | 14,911 | Doug Drabek | Eric Show | Eric Show | Doug Drabek | Rich Gossage | 402 | 461 | -59 |
| 1987-07-24 | @ SDN | 96 | W 3-2 | 44-52 | 6 | 17,136 | Mike Dunne | Jimmy Jones | Mike Dunne | Jimmy Jones | Brett Gideon | 405 | 463 | -58 |
| 1987-07-25 | @ SDN | 97 | W 9-3 | 45-52 | 6 | 19,764 | Brian Fisher | Andy Hawkins | Brian Fisher | Andy Hawkins | | 414 | 466 | -52 |
| 1987-07-26 | @ SDN | 98 | L 4-7 | 45-53 | 6 | 13,219 | Bob Kipper | Ed Whitson | Ed Whitson | Bob Kipper | | 418 | 473 | -55 |
| 1987-07-28 | vs PHI | 99 | L 2-5 | 45-54 | 6 | 16,270 | Rick Reuschel | Shane Rawley | Shane Rawley | Rick Reuschel | | 420 | 478 | -58 |
| 1987-07-29 | vs PHI | 100 | L 3-4 | 45-55 | 6 | 28,392 | Doug Drabek | Don Carman | Don Carman | Doug Drabek | Steve Bedrosian | 423 | 482 | -59 |
| 1987-07-30 | vs PHI | 101 | L 0-1 | 45-56 | 6 | 11,769 | Mike Dunne | Bruce Ruffin | Bruce Ruffin | John Smiley | Steve Bedrosian | 423 | 483 | -60 |
| 1987-07-31 | @ SLN | 102 | L 3-4 | 45-57 | 6 | 38,757 | Brian Fisher | Bob Forsch | Ken Dayley | Barry Jones | | 426 | 487 | -61 |
| 1987-08-01 | @ SLN | 103 | L 6-7 | 45-58 | 6 | 47,106 | Rick Reuschel | John Tudor | Todd Worrell | Barry Jones | | 432 | 494 | -62 |
| 1987-08-02 | @ SLN | 104 | L 1-9 | 45-59 | 6 | 44,695 | Hipolito Pena | Joe Magrane | Joe Magrane | Hipolito Pena | | 433 | 503 | -70 |
| 1987-08-03 | vs CHN | 105 | W 6-4 | 46-59 | 6 | 7,281 | Doug Drabek | Greg Maddux | Doug Drabek | Greg Maddux | Jim Gott | 439 | 507 | -68 |
| 1987-08-04 | vs CHN | 106 | L 2-3 | 46-60 | 6 | 8,744 | Mike Dunne | Scott Sanderson | Mike Mason | Brett Gideon | | 441 | 510 | -69 |
| 1987-08-05 | vs CHN | 107 | W 10-0 | 47-60 | 6 | 7,726 | Brian Fisher | Jamie Moyer | Brian Fisher | Jamie Moyer | | 451 | 510 | -59 |
| 1987-08-06 | vs MON | 108 | L 3-6 | 47-61 | 6 | 7,755 | Rick Reuschel | Floyd Youmans | Jeff Parrett | Jim Gott | Tim Burke | 454 | 516 | -62 |
| 1987-08-07 | vs MON | 109 | W 9-3 | 48-61 | 6 | 22,075 | Bob Walk | Bob Sebra | Bob Walk | Bob Sebra | Brett Gideon | 463 | 519 | -56 |
| 1987-08-08 | vs MON | 110 | W 5-2 | 49-61 | 6 | 18,285 | Doug Drabek | Bryn Smith | Doug Drabek | Bryn Smith | John Smiley | 468 | 521 | -53 |
| 1987-08-09 | vs MON | 111 | W 4-3 | 50-61 | 6 | 18,829 | Mike Dunne | Neal Heaton | Mike Dunne | Jeff Parrett | Jim Gott | 472 | 524 | -52 |
| 1987-08-10 | vs SLN | 112 | L 0-6 | 50-62 | 6 | 11,445 | Brian Fisher | Bob Forsch | Bob Forsch | Brian Fisher | | 472 | 530 | -58 |
| 1987-08-11 | vs SLN | 113 | L 5-6 | 50-63 | 6 | 14,637 | Rick Reuschel | John Tudor | Ken Dayley | Rick Reuschel | Todd Worrell | 477 | 536 | -59 |
| 1987-08-12 | vs SLN | 114 | W 11-0 | 51-63 | 6 | 15,186 | Bob Walk | Joe Magrane | Bob Walk | Joe Magrane | | 488 | 536 | -48 |
| 1987-08-13 | @ MON | 115 | L 7-9 | 51-64 | 6 | 23,609 | Doug Drabek | Bryn Smith | Andy McGaffigan | Brett Gideon | Bob McClure | 495 | 545 | -50 |
| 1987-08-14 | @ MON | 116 | L 3-4 | 51-65 | 6 | 20,501 | Mike Dunne | Neal Heaton | Bob McClure | John Smiley | | 498 | 549 | -51 |
| 1987-08-15 | @ MON | 117 | L 3-6 | 51-66 | 6 | 23,894 | Brian Fisher | Dennis Martinez | Tim Burke | Brian Fisher | | 501 | 555 | -54 |
| 1987-08-16 | @ MON | 118 | L 7-10 | 51-67 | 6 | 26,134 | Rick Reuschel | Floyd Youmans | Jeff Parrett | Brett Gideon | | 508 | 565 | -57 |
| 1987-08-18 | @ CIN | 119 | W 7-4 | 52-67 | 6 | 29,385 | Bob Walk | Bill Gullickson | Bob Walk | Rob Murphy | Jim Gott | 515 | 569 | -54 |
| 1987-08-19 | @ CIN | 120 | W 10-9 | 53-67 | 6 | 24,179 | Doug Drabek | Tom Browning | Doug Drabek | Tom Browning | | 525 | 578 | -53 |
| 1987-08-20 | @ CIN | 121 | L 3-5 | 53-68 | 6 | 22,542 | Mike Dunne | Ted Power | Ted Power | Mike Dunne | John Franco | 528 | 583 | -55 |
| 1987-08-21 | @ ATL | 122 | L 4-5 | 53-69 | 6 | 15,783 | Brian Fisher | Zane Smith | Zane Smith | John Smiley | Ed Olwine | 532 | 588 | -56 |
| 1987-08-22 | @ ATL | 123 | L 3-10 | 53-70 | 6 | 22,173 | Bob Walk | Tom Glavine | Tom Glavine | Bob Walk | | 535 | 598 | -63 |
| 1987-08-23 | @ ATL | 124 | L 2-6 | 53-71 | 6 | 10,699 | Mike Bielecki | David Palmer | David Palmer | Mike Bielecki | | 537 | 604 | -67 |
| 1987-08-24 | vs CIN | 125 | W 5-4 | 54-71 | 6 | 11,020 | Doug Drabek | Tom Browning | Doug Drabek | Tom Browning | Jim Gott | 542 | 608 | -66 |
| 1987-08-25 | vs CIN | 126 | W 1-0 | 55-71 | 6 | 10,149 | Mike Dunne | Ted Power | Mike Dunne | Ted Power | | 543 | 608 | -65 |
| 1987-08-26 | vs CIN | 127 | W 6-5 | 56-71 | 6 | 13,722 | Brian Fisher | Guy Hoffman | Jeff Robinson | John Franco | | 549 | 613 | -64 |
| 1987-08-28 | vs HOU | 128 | W 4-2 | 57-71 | 6 | 11,917 | Bob Walk | Mike Scott | Bob Walk | Mike Scott | Jim Gott | 553 | 615 | -62 |
| 1987-08-29 | vs HOU | 129 | W 8-2 | 58-71 | 6 | 26,585 | Mike Bielecki | Nolan Ryan | Mike Bielecki | Nolan Ryan | | 561 | 617 | -56 |
| 1987-08-30 | vs HOU | 130 | W 7-0 | 59-71 | 6 | 26,867 | Doug Drabek | Bob Knepper | Doug Drabek | Bob Knepper | | 568 | 617 | -49 |
| 1987-08-31 | vs ATL | 131 | W 7-3 | 60-71 | 6 | 4,930 | Mike Dunne | Jeff Dedmon | Mike Dunne | Jeff Dedmon | | 575 | 620 | -45 |
| 1987-09-01 | vs ATL | 132 | L 0-4 | 60-72 | 6 | 7,498 | Brian Fisher | Zane Smith | Zane Smith | Brian Fisher | | 575 | 624 | -49 |
| 1987-09-02 | vs ATL | 133 | W 2-0 | 61-72 | 6 | 6,259 | Bob Walk | Tom Glavine | Bob Walk | Tom Glavine | Jim Gott | 577 | 624 | -47 |
| 1987-09-04 | @ HOU | 134 | L 0-2 | 61-73 | 6 | 16,367 | Mike Bielecki | Nolan Ryan | Nolan Ryan | Mike Bielecki | Juan Agosto | 577 | 626 | -49 |
| 1987-09-05 | @ HOU | 135 | L 1-5 | 61-74 | 6 | 27,887 | Doug Drabek | Bob Knepper | Bob Knepper | Doug Drabek | | 578 | 631 | -53 |
| 1987-09-06 | @ HOU | 136 | W 4-3 | 62-74 | 6 | 25,374 | Mike Dunne | Manny Hernandez | Mike Dunne | Manny Hernandez | Jim Gott | 582 | 634 | -52 |
| 1987-09-07 | @ CHN | 137 | W 3-2 | 63-74 | 6 | 21,745 | Brian Fisher | Jamie Moyer | Brian Fisher | Jamie Moyer | Jeff Robinson | 585 | 636 | -51 |
| 1987-09-08 | @ CHN | 138 | W 4-1 | 64-74 | 6 | 8,331 | Vicente Palacios | Rick Sutcliffe | Vicente Palacios | Rick Sutcliffe | Jim Gott | 589 | 637 | -48 |
| 1987-09-09 | @ CHN | 139 | W 4-3 | 65-74 | 6 | 8,054 | Mike Bielecki | Scott Sanderson | Jeff Robinson | Lee Smith | Jim Gott | 593 | 640 | -47 |
| 1987-09-11 | @ PHI | 140 | W 4-2 | 66-74 | 6 | 20,085 | Doug Drabek | Kevin Gross | Doug Drabek | Kevin Gross | Jim Gott | 597 | 642 | -45 |
| 1987-09-12 | @ PHI | 141 | W 12-4 | 67-74 | 6 | 15,440 | Mike Dunne | Don Carman | Mike Dunne | Don Carman | | 609 | 646 | -37 |
| 1987-09-13 | @ PHI | 142 | W 6-1 | 68-74 | 6 | 12,610 | Brian Fisher | Bruce Ruffin | Brian Fisher | Bruce Ruffin | | 615 | 647 | -32 |
| 1987-09-14 | vs MON | 143 | L 4-6 | 68-75 | 6 | 5,869 | Vicente Palacios | Dennis Martinez | Andy McGaffigan | Brett Gideon | Jeff Parrett | 619 | 653 | -34 |
| 1987-09-15 | vs MON | 144 | W 5-1 | 69-75 | 6 | 5,852 | Mike Bielecki | Neal Heaton | Mike Bielecki | Neal Heaton | | 624 | 654 | -30 |
| 1987-09-16 | vs SLN | 145 | L 5-8 | 69-76 | 6 | 15,323 | Doug Drabek | John Tudor | John Tudor | Doug Drabek | | 629 | 662 | -33 |
| 1987-09-17 | vs SLN | 146 | W 1-0 | 70-76 | 6 | 5,640 | Mike Dunne | Greg Mathews | Mike Dunne | Greg Mathews | Jim Gott | 630 | 662 | -32 |
| 1987-09-18 | vs NYN | 147 | W 10-9 | 71-76 | 6 | 15,308 | Brian Fisher | John Candelaria | John Smiley | Randy Myers | Jim Gott | 640 | 671 | -31 |
| 1987-09-19 | vs NYN | 148 | L 4-5 | 71-77 | 6 | 20,933 | Vicente Palacios | Rick Aguilera | Rick Aguilera | Vicente Palacios | Roger McDowell | 644 | 676 | -32 |
| 1987-09-20 | vs NYN | 149 | W 9-8 | 72-77 | 5 | 19,122 | Mike Bielecki | Sid Fernandez | John Smiley | Bob Ojeda | | 653 | 684 | -31 |
| 1987-09-21 | @ MON | 150 | W 5-2 | 73-77 | 5 | 13,206 | Doug Drabek | Bob Sebra | Doug Drabek | Bob Sebra | Jeff Robinson | 658 | 686 | -28 |
| 1987-09-22 | @ MON | 151 | L 3-4 | 73-78 | 5 | 16,407 | Mike Dunne | Pascual Perez | Pascual Perez | Jim Gott | Tim Burke | 661 | 690 | -29 |
| 1987-09-23 | @ SLN | 152 | W 2-0 | 74-78 | 5 | 30,235 | Brian Fisher | Greg Mathews | Brian Fisher | Greg Mathews | | 663 | 690 | -27 |
| 1987-09-24 | @ SLN | 153 | L 2-3 | 74-79 | 5 | 35,921 | Bob Walk | Joe Magrane | Ricky Horton | Jeff Robinson | | 665 | 693 | -28 |
| 1987-09-25 | @ NYN | 154 | L 2-10 | 74-80 | 5 | 41,987 | Mike Bielecki | Sid Fernandez | Sid Fernandez | Mike Bielecki | | 667 | 703 | -36 |
| 1987-09-26 | @ NYN | 155 | W 8-2 | 75-80 | 5 | 48,695 | Doug Drabek | Dwight Gooden | Doug Drabek | Dwight Gooden | | 675 | 705 | -30 |
| 1987-09-27 | @ NYN | 156 | L 3-12 | 75-81 | 5 | 48,588 | Mike Dunne | Bob Ojeda | Bob Ojeda | Mike Dunne | Jesse Orosco | 678 | 717 | -39 |
| 1987-09-30 | vs CHN | 157 | W 5-3 | 76-82 | 5 | 0 | Brian Fisher | Rick Sutcliffe | Brian Fisher | Rick Sutcliffe | Jeff Robinson | 683 | 720 | -37 |
| 1987-09-30 | vs CHN | 158 | L 8-10 | 76-82 | 5 | 6,985 | Mike Bielecki | Jamie Moyer | Drew Hall | John Smiley | | 691 | 730 | -39 |
| 1987-10-01 | vs CHN | 159 | W 12-3 | 77-82 | 5 | 5,294 | Doug Drabek | Scott Sanderson | Doug Drabek | Scott Sanderson | | 703 | 733 | -30 |
| 1987-10-02 | vs PHI | 160 | W 6-4 | 78-82 | 5 | 8,245 | Bob Walk | Bruce Ruffin | Bob Walk | Michael Jackson | Jim Gott | 709 | 737 | -28 |
| 1987-10-03 | vs PHI | 161 | W 10-5 | 79-82 | 5 | 12,790 | Vicente Palacios | Kevin Gross | Vicente Palacios | Kevin Gross | | 719 | 742 | -23 |
| 1987-10-04 | vs PHI | 162 | W 4-2 | 80-82 | 5 | 26,734 | Mike Dunne | Don Carman | Mike Dunne | Steve Bedrosian | Jeff Robinson | 723 | 744 | -21 |