| 1987-04-06 | vs SDN | 1 | W 4-3 | 1-0 | 3 | 52,020 | Mike Krukow | Eric Show | Jeff Robinson | Dave Dravecky | | 4 | 3 | 1 |
| 1987-04-07 | vs SDN | 2 | W 4-3 | 2-0 | 4 | 11,670 | Mike LaCoss | Ed Whitson | Mike LaCoss | Ed Whitson | Jeff Robinson | 8 | 6 | 2 |
| 1987-04-08 | vs SDN | 3 | W 2-1 | 3-0 | 4 | 9,618 | Roger Mason | Andy Hawkins | Roger Mason | Andy Hawkins | Scott Garrelts | 10 | 7 | 3 |
| 1987-04-09 | @ LAN | 4 | W 8-1 | 4-0 | 4 | 46,289 | Mark Davis | Bob Welch | Mark Davis | Bob Welch | | 18 | 8 | 10 |
| 1987-04-10 | @ LAN | 5 | W 5-4 | 5-0 | 3 | 41,338 | Kelly Downs | Alejandro Pena | Scott Garrelts | Tim Leary | Mark Grant | 23 | 12 | 11 |
| 1987-04-11 | @ LAN | 6 | L 1-5 | 5-1 | 3 | 31,000 | Mike Krukow | Orel Hershiser | Orel Hershiser | Mike Krukow | | 24 | 17 | 7 |
| 1987-04-12 | @ LAN | 7 | L 5-7 | 5-2 | 4 | 48,771 | Mike LaCoss | Fernando Valenzuela | Fernando Valenzuela | Mike LaCoss | Matt Young | 29 | 24 | 5 |
| 1987-04-13 | @ SDN | 8 | W 13-6 | 6-2 | 3 | 48,686 | Roger Mason | Andy Hawkins | Jim Gott | Dave Dravecky | Jeff Robinson | 42 | 30 | 12 |
| 1987-04-14 | @ SDN | 9 | W 3-2 | 7-2 | 2 | 13,327 | Mark Davis | Ed Wojna | Mark Grant | Ed Wojna | Scott Garrelts | 45 | 32 | 13 |
| 1987-04-15 | @ SDN | 10 | W 1-0 | 8-2 | 1 | 14,616 | Kelly Downs | Storm Davis | Kelly Downs | Storm Davis | | 46 | 32 | 14 |
| 1987-04-17 | vs ATL | 11 | L 0-2 | 8-3 | 2 | 20,459 | Mike Krukow | Zane Smith | Zane Smith | Mike Krukow | | 46 | 34 | 12 |
| 1987-04-18 | vs ATL | 12 | W 2-1 | 9-3 | 2 | 22,054 | Roger Mason | David Palmer | Scott Garrelts | Gene Garber | | 48 | 35 | 13 |
| 1987-04-19 | vs ATL | 13 | W 4-3 | 10-3 | 1 | 34,794 | Mark Grant | Rick Mahler | Jeff Robinson | Paul Assenmacher | | 52 | 38 | 14 |
| 1987-04-20 | vs LAN | 14 | W 4-3 | 11-3 | 1 | 27,656 | Mark Davis | Orel Hershiser | Mark Davis | Orel Hershiser | Scott Garrelts | 56 | 41 | 15 |
| 1987-04-21 | vs LAN | 15 | L 8-11 | 11-4 | 1 | 31,512 | Kelly Downs | Tim Leary | Ken Howell | Scott Garrelts | | 64 | 52 | 12 |
| 1987-04-22 | vs LAN | 16 | L 3-5 | 11-5 | 1 | 45,668 | Mike Krukow | Fernando Valenzuela | Fernando Valenzuela | Mike Krukow | Tom Niedenfuer | 67 | 57 | 10 |
| 1987-04-24 | @ ATL | 17 | W 7-5 | 12-5 | 2 | 11,398 | Roger Mason | Randy O'Neal | Greg Minton | Jim Acker | Jeff Robinson | 74 | 62 | 12 |
| 1987-04-25 | @ ATL | 18 | L 3-5 | 12-6 | 2 | 13,949 | Mark Grant | Zane Smith | Gene Garber | Scott Garrelts | | 77 | 67 | 10 |
| 1987-04-26 | @ ATL | 19 | W 6-4 | 13-6 | 2 | 18,058 | Mark Davis | David Palmer | Mark Davis | David Palmer | Jeff Robinson | 83 | 71 | 12 |
| 1987-04-27 | @ ATL | 20 | W 7-3 | 14-6 | 2 | 6,474 | Kelly Downs | Rick Mahler | Kelly Downs | Rick Mahler | Scott Garrelts | 90 | 74 | 16 |
| 1987-04-28 | @ CHN | 21 | W 6-2 | 15-6 | 1 | 10,097 | Mike Krukow | Rick Sutcliffe | Mike Krukow | Rick Sutcliffe | | 96 | 76 | 20 |
| 1987-04-29 | @ CHN | 22 | L 4-8 | 15-7 | 1 | 11,120 | Roger Mason | Greg Maddux | Greg Maddux | Roger Mason | Ed Lynch | 100 | 84 | 16 |
| 1987-04-30 | @ CHN | 23 | W 5-4 | 16-7 | 1 | 11,934 | Mark Grant | Jamie Moyer | Scott Garrelts | Lee Smith | Greg Minton | 105 | 88 | 17 |
| 1987-05-01 | @ PIT | 24 | L 2-4 | 16-8 | 2 | 10,651 | Mark Davis | Rick Reuschel | Rick Reuschel | Mark Davis | | 107 | 92 | 15 |
| 1987-05-02 | @ PIT | 25 | L 0-1 | 16-9 | 2 | 14,736 | Kelly Downs | Bob Walk | John Smiley | Kelly Downs | Don Robinson | 107 | 93 | 14 |
| 1987-05-04 | @ SLN | 26 | W 10-7 | 17-9 | 2 | 22,833 | Mike Krukow | Danny Cox | Mike LaCoss | Bill Dawley | Jeff Robinson | 117 | 100 | 17 |
| 1987-05-05 | @ SLN | 27 | W 10-6 | 18-9 | 2 | 25,574 | Mark Grant | Greg Mathews | Scott Garrelts | Greg Mathews | | 127 | 106 | 21 |
| 1987-05-06 | vs CHN | 28 | L 4-9 | 18-10 | 2 | 15,123 | Mark Davis | Scott Sanderson | Scott Sanderson | Mark Davis | Lee Smith | 131 | 115 | 16 |
| 1987-05-07 | vs CHN | 29 | W 11-1 | 19-10 | 2 | 12,228 | Mike LaCoss | Ed Lynch | Mike LaCoss | Ed Lynch | Jeff Robinson | 142 | 116 | 26 |
| 1987-05-08 | vs PIT | 30 | W 4-2 | 20-10 | 2 | 17,985 | Kelly Downs | Brian Fisher | Kelly Downs | Brian Fisher | Scott Garrelts | 146 | 118 | 28 |
| 1987-05-09 | vs PIT | 31 | W 9-4 | 21-10 | 1 | 17,609 | Mike Krukow | Bob Patterson | Atlee Hammaker | Bob Walk | | 155 | 122 | 33 |
| 1987-05-10 | vs PIT | 32 | L 1-4 | 21-11 | 1 | 29,652 | Mark Grant | Dorn Taylor | Don Robinson | Scott Garrelts | | 156 | 126 | 30 |
| 1987-05-12 | vs SLN | 33 | L 5-6 | 21-12 | 1 | 14,318 | Mark Davis | Joe Magrane | Joe Magrane | Mark Davis | Todd Worrell | 161 | 132 | 29 |
| 1987-05-13 | vs SLN | 34 | L 6-7 | 21-13 | 2 | 16,891 | Kelly Downs | Bob Forsch | Ray Soff | Jeff Robinson | Todd Worrell | 167 | 139 | 28 |
| 1987-05-15 | @ NYN | 35 | L 3-8 | 21-14 | 2 | 35,502 | Mike Krukow | Sid Fernandez | Sid Fernandez | Mike Krukow | Roger McDowell | 170 | 147 | 23 |
| 1987-05-16 | @ NYN | 36 | W 5-4 | 22-14 | 2 | 48,128 | Mark Grant | Rick Aguilera | Scott Garrelts | Jeff Innis | | 175 | 151 | 24 |
| 1987-05-17 | @ NYN | 37 | L 4-6 | 22-15 | 2 | 46,744 | Atlee Hammaker | David Cone | David Cone | Atlee Hammaker | Roger McDowell | 179 | 157 | 22 |
| 1987-05-18 | @ MON | 38 | L 2-7 | 22-16 | 2 | 11,921 | Kelly Downs | Neal Heaton | Neal Heaton | Kelly Downs | | 181 | 164 | 17 |
| 1987-05-19 | @ MON | 39 | W 6-2 | 23-16 | 1 | 15,042 | Mike LaCoss | Floyd Youmans | Mike LaCoss | Floyd Youmans | | 187 | 166 | 21 |
| 1987-05-20 | @ MON | 40 | W 9-7 | 24-16 | 1 | 10,703 | Mike Krukow | Jay Tibbs | Jeff Robinson | Randy St. Claire | | 196 | 173 | 23 |
| 1987-05-22 | @ PHI | 41 | W 2-1 | 25-16 | 1 | 18,744 | Atlee Hammaker | Don Carman | Atlee Hammaker | Don Carman | Scott Garrelts | 198 | 174 | 24 |
| 1987-05-23 | @ PHI | 42 | L 8-9 | 25-17 | 1 | 21,841 | Jim Gott | Bruce Ruffin | Steve Bedrosian | Jeff Robinson | | 206 | 183 | 23 |
| 1987-05-24 | @ PHI | 43 | W 6-3 | 26-17 | 1 | 28,541 | Mike LaCoss | Kevin Gross | Mike LaCoss | Kent Tekulve | Jeff Robinson | 212 | 186 | 26 |
| 1987-05-25 | vs NYN | 44 | L 7-8 | 26-18 | 1 | 42,266 | Mike Krukow | John Mitchell | Terry Leach | Mark Grant | Jesse Orosco | 219 | 194 | 25 |
| 1987-05-26 | vs NYN | 45 | L 2-3 | 26-19 | 1 | 23,988 | Kelly Downs | Jeff Innis | Doug Sisk | Jeff Robinson | Jesse Orosco | 221 | 197 | 24 |
| 1987-05-27 | vs NYN | 46 | L 3-4 | 26-20 | 1 | 19,455 | Atlee Hammaker | David Cone | Roger McDowell | Jeff Robinson | Jesse Orosco | 224 | 201 | 23 |
| 1987-05-29 | vs MON | 47 | L 4-10 | 26-21 | 2 | 12,210 | Mike LaCoss | Neal Heaton | Neal Heaton | Mike LaCoss | Tim Burke | 228 | 211 | 17 |
| 1987-05-30 | vs MON | 48 | L 4-6 | 26-22 | 2 | 15,382 | Mike Krukow | Floyd Youmans | Floyd Youmans | Mike Krukow | Randy St. Claire | 232 | 217 | 15 |
| 1987-05-31 | vs MON | 49 | W 8-0 | 27-22 | 2 | 29,740 | Kelly Downs | Bob Sebra | Kelly Downs | Bob Sebra | | 240 | 217 | 23 |
| 1987-06-01 | vs PHI | 50 | W 9-2 | 28-22 | 2 | 6,655 | Atlee Hammaker | Don Carman | Atlee Hammaker | Don Carman | | 249 | 219 | 30 |
| 1987-06-02 | vs PHI | 51 | L 6-7 | 28-23 | 2 | 10,826 | Mark Davis | Michael Jackson | Wally Ritchie | Mark Davis | Steve Bedrosian | 255 | 226 | 29 |
| 1987-06-03 | vs PHI | 52 | W 4-1 | 29-23 | 2 | 10,522 | Mike LaCoss | Bruce Ruffin | Mike LaCoss | Bruce Ruffin | Jeff Robinson | 259 | 227 | 32 |
| 1987-06-05 | @ HOU | 53 | L 1-6 | 29-24 | 2 | 39,250 | Mike Krukow | Mike Scott | Mike Scott | Mike Krukow | | 260 | 233 | 27 |
| 1987-06-06 | @ HOU | 54 | W 4-3 | 30-24 | 2 | 28,878 | Kelly Downs | Jim Deshaies | Keith Comstock | Larry Andersen | | 264 | 236 | 28 |
| 1987-06-07 | @ HOU | 55 | L 0-3 | 30-25 | 2 | 17,234 | Atlee Hammaker | Nolan Ryan | Nolan Ryan | Atlee Hammaker | Dave Smith | 264 | 239 | 25 |
| 1987-06-08 | @ CIN | 56 | L 6-7 | 30-26 | 2 | 23,566 | Mike LaCoss | Tom Browning | John Franco | Scott Garrelts | | 270 | 246 | 24 |
| 1987-06-09 | @ CIN | 57 | W 10-2 | 31-26 | 2 | 26,178 | Mark Davis | Pat Pacillo | Mark Davis | Pat Pacillo | | 280 | 248 | 32 |
| 1987-06-10 | @ CIN | 58 | W 9-4 | 32-26 | 2 | 32,320 | Jim Gott | Bill Gullickson | Keith Comstock | Bill Gullickson | Scott Garrelts | 289 | 252 | 37 |
| 1987-06-11 | vs SDN | 59 | W 1-0 | 33-26 | 2 | 6,982 | Kelly Downs | Eric Show | Kelly Downs | Eric Show | | 290 | 252 | 38 |
| 1987-06-12 | vs SDN | 60 | L 0-5 | 33-27 | 2 | 12,577 | Mike LaCoss | Ed Whitson | Ed Whitson | Mike LaCoss | | 290 | 257 | 33 |
| 1987-06-13 | vs SDN | 61 | L 2-11 | 33-28 | 2 | 19,499 | Atlee Hammaker | Andy Hawkins | Andy Hawkins | Atlee Hammaker | Craig Lefferts | 292 | 268 | 24 |
| 1987-06-14 | vs SDN | 62 | L 1-4 | 33-29 | 2 | 27,249 | Mark Davis | Dave Dravecky | Dave Dravecky | Mark Davis | | 293 | 272 | 21 |
| 1987-06-16 | @ ATL | 63 | L 2-7 | 33-30 | 3 | 9,218 | Kelly Downs | Doyle Alexander | Doyle Alexander | Kelly Downs | | 295 | 279 | 16 |
| 1987-06-17 | @ ATL | 64 | L 1-6 | 33-31 | 3 | 9,913 | Mike LaCoss | Rick Mahler | Rick Mahler | Jeff Robinson | | 296 | 285 | 11 |
| 1987-06-18 | @ SDN | 65 | L 1-3 | 33-32 | 3 | 13,856 | Atlee Hammaker | Storm Davis | Storm Davis | Atlee Hammaker | Rich Gossage | 297 | 288 | 9 |
| 1987-06-19 | @ SDN | 66 | W 7-6 | 34-32 | 3 | 19,288 | Mark Davis | Dave Dravecky | Jeff Robinson | Lance McCullers | Scott Garrelts | 304 | 294 | 10 |
| 1987-06-20 | @ SDN | 67 | L 4-10 | 34-33 | 4 | 50,494 | Jim Gott | Andy Hawkins | Jimmy Jones | Jeff Robinson | Lance McCullers | 308 | 304 | 4 |
| 1987-06-21 | @ SDN | 68 | W 11-2 | 35-33 | 3 | 19,856 | Kelly Downs | Eric Show | Kelly Downs | Eric Show | | 319 | 306 | 13 |
| 1987-06-23 | vs CIN | 69 | L 1-4 | 35-34 | 3 | 23,906 | Atlee Hammaker | Ron Robinson | Ron Robinson | Atlee Hammaker | John Franco | 320 | 310 | 10 |
| 1987-06-24 | vs CIN | 70 | L 4-5 | 35-35 | 3 | 27,985 | Mark Grant | Guy Hoffman | John Franco | Scott Garrelts | | 324 | 315 | 9 |
| 1987-06-25 | vs CIN | 71 | W 7-6 | 36-35 | 3 | 22,112 | Mike Krukow | Bill Gullickson | Scott Garrelts | Rob Murphy | | 331 | 321 | 10 |
| 1987-06-26 | vs HOU | 72 | L 6-9 | 36-36 | 3 | 17,110 | Mike LaCoss | Bob Knepper | Bob Knepper | Mike LaCoss | Dave Smith | 337 | 330 | 7 |
| 1987-06-27 | vs HOU | 73 | L 5-6 | 36-37 | 3 | 34,290 | Kelly Downs | Jim Deshaies | Jim Deshaies | Kelly Downs | Larry Andersen | 342 | 336 | 6 |
| 1987-06-28 | vs HOU | 74 | W 8-4 | 37-37 | 3 | 30,742 | Atlee Hammaker | Nolan Ryan | Atlee Hammaker | Nolan Ryan | Keith Comstock | 350 | 340 | 10 |
| 1987-06-29 | vs ATL | 75 | L 0-1 | 37-38 | 3 | 5,921 | Mark Grant | Zane Smith | Zane Smith | Mark Grant | | 350 | 341 | 9 |
| 1987-06-30 | vs ATL | 76 | W 5-2 | 38-38 | 3 | 8,246 | Mike Krukow | Doyle Alexander | Jeff Robinson | Doyle Alexander | Scott Garrelts | 355 | 343 | 12 |
| 1987-07-01 | vs ATL | 77 | L 3-8 | 38-39 | 3 | 11,814 | Mike LaCoss | Rick Mahler | Rick Mahler | Mike LaCoss | | 358 | 351 | 7 |
| 1987-07-03 | @ CHN | 78 | W 3-1 | 39-39 | 3 | 37,650 | Kelly Downs | Jamie Moyer | Kelly Downs | Jamie Moyer | Jeff Robinson | 361 | 352 | 9 |
| 1987-07-04 | @ CHN | 79 | L 3-5 | 39-40 | 3 | 30,929 | Atlee Hammaker | Rick Sutcliffe | Rick Sutcliffe | Atlee Hammaker | Lee Smith | 364 | 357 | 7 |
| 1987-07-05 | @ CHN | 80 | W 7-5 | 40-40 | 3 | 32,304 | Mike Krukow | Les Lancaster | Joe Price | Ed Lynch | Scott Garrelts | 371 | 362 | 9 |
| 1987-07-06 | @ PIT | 81 | W 7-5 | 42-40 | 3 | 0 | Dave Dravecky | Mike Dunne | Dave Dravecky | Mike Dunne | Scott Garrelts | 378 | 367 | 11 |
| 1987-07-06 | @ PIT | 82 | W 7-4 | 42-40 | 3 | 11,204 | Mike LaCoss | Doug Drabek | Mike LaCoss | Doug Drabek | Craig Lefferts | 385 | 371 | 14 |
| 1987-07-07 | @ PIT | 83 | L 4-6 | 42-41 | 3 | 7,027 | Kelly Downs | Bob Walk | Brett Gideon | Joe Price | | 389 | 377 | 12 |
| 1987-07-08 | @ PIT | 84 | W 8-4 | 43-41 | 3 | 10,868 | Atlee Hammaker | Rick Reuschel | Jeff Robinson | Brett Gideon | | 397 | 381 | 16 |
| 1987-07-09 | @ SLN | 85 | L 6-7 | 43-42 | 3 | 37,917 | Mike Krukow | Danny Cox | Ricky Horton | Scott Garrelts | | 403 | 388 | 15 |
| 1987-07-10 | @ SLN | 86 | L 5-7 | 43-43 | 3 | 43,845 | Dave Dravecky | Greg Mathews | Lee Tunnell | Craig Lefferts | | 408 | 395 | 13 |
| 1987-07-11 | @ SLN | 87 | W 3-1 | 44-43 | 3 | 49,652 | Kelly Downs | Joe Magrane | Kelly Downs | Joe Magrane | Scott Garrelts | 411 | 396 | 15 |
| 1987-07-12 | @ SLN | 88 | L 2-3 | 44-44 | 3 | 41,562 | Atlee Hammaker | Ricky Horton | Ricky Horton | Atlee Hammaker | Ken Dayley | 413 | 399 | 14 |
| 1987-07-16 | vs CHN | 89 | L 1-4 | 44-45 | 3 | 14,024 | Dave Dravecky | Jamie Moyer | Jamie Moyer | Dave Dravecky | Scott Sanderson | 414 | 403 | 11 |
| 1987-07-17 | vs CHN | 90 | L 1-5 | 44-46 | 3 | 13,868 | Kelly Downs | Rick Sutcliffe | Rick Sutcliffe | Kelly Downs | Lee Smith | 415 | 408 | 7 |
| 1987-07-18 | vs CHN | 91 | W 9-2 | 45-46 | 3 | 26,504 | Atlee Hammaker | Greg Maddux | Atlee Hammaker | Greg Maddux | | 424 | 410 | 14 |
| 1987-07-19 | vs CHN | 92 | W 4-3 | 46-46 | 2 | 35,865 | Mike Krukow | Les Lancaster | Scott Garrelts | Scott Sanderson | | 428 | 413 | 15 |
| 1987-07-20 | vs PIT | 93 | L 6-7 | 46-47 | 2 | 6,919 | Mike LaCoss | Brian Fisher | Brian Fisher | Mike LaCoss | Don Robinson | 434 | 420 | 14 |
| 1987-07-21 | vs PIT | 94 | W 7-0 | 47-47 | 2 | 8,382 | Dave Dravecky | Bob Kipper | Dave Dravecky | Bob Kipper | | 441 | 420 | 21 |
| 1987-07-22 | vs PIT | 95 | L 0-4 | 47-48 | 3 | 14,472 | Kelly Downs | Rick Reuschel | Rick Reuschel | Kelly Downs | | 441 | 424 | 17 |
| 1987-07-24 | vs SLN | 96 | W 4-3 | 48-48 | 2 | 18,071 | Atlee Hammaker | Ricky Horton | Atlee Hammaker | Ricky Horton | Jeff Robinson | 445 | 427 | 18 |
| 1987-07-25 | vs SLN | 97 | W 5-4 | 49-48 | 2 | 26,751 | Mike Krukow | Dave LaPoint | Scott Garrelts | Bill Dawley | | 450 | 431 | 19 |
| 1987-07-26 | vs SLN | 98 | W 6-3 | 51-48 | 2 | 0 | Dave Dravecky | Bob Forsch | Scott Garrelts | Todd Worrell | | 456 | 434 | 22 |
| 1987-07-26 | vs SLN | 99 | W 5-2 | 51-48 | 2 | 41,256 | Mike LaCoss | Greg Mathews | Mike LaCoss | Greg Mathews | Craig Lefferts | 461 | 436 | 25 |
| 1987-07-27 | @ LAN | 100 | L 5-6 | 51-49 | 2 | 33,741 | Kelly Downs | Bob Welch | Tim Leary | Scott Garrelts | | 466 | 442 | 24 |
| 1987-07-28 | @ LAN | 101 | L 2-4 | 51-50 | 2 | 38,834 | Atlee Hammaker | Orel Hershiser | Orel Hershiser | Atlee Hammaker | Ken Howell | 468 | 446 | 22 |
| 1987-07-29 | @ LAN | 102 | W 16-2 | 52-50 | 2 | 39,908 | Mike Krukow | Rick Honeycutt | Mike Krukow | Rick Honeycutt | | 484 | 448 | 36 |
| 1987-07-31 | @ CIN | 103 | L 2-9 | 52-51 | 2 | 38,753 | Dave Dravecky | Ron Robinson | Ron Robinson | Dave Dravecky | | 486 | 457 | 29 |
| 1987-08-01 | @ CIN | 104 | W 7-3 | 53-51 | 2 | 35,911 | Mike LaCoss | Bill Gullickson | Mike LaCoss | Bill Gullickson | | 493 | 460 | 33 |
| 1987-08-02 | @ CIN | 105 | L 4-5 | 53-52 | 2 | 44,368 | Atlee Hammaker | Tom Browning | Jeff Montgomery | Jeff Robinson | | 497 | 465 | 32 |
| 1987-08-03 | @ HOU | 106 | L 3-5 | 53-53 | 2 | 28,287 | Mike Krukow | Nolan Ryan | Juan Agosto | Joe Price | | 500 | 470 | 30 |
| 1987-08-04 | @ HOU | 107 | L 4-5 | 53-54 | 3 | 22,607 | Kelly Downs | Bob Knepper | Jeff Heathcock | Craig Lefferts | Dave Smith | 504 | 475 | 29 |
| 1987-08-05 | @ HOU | 108 | L 5-6 | 53-55 | 3 | 26,483 | Dave Dravecky | Danny Darwin | Larry Andersen | Jeff Robinson | | 509 | 481 | 28 |
| 1987-08-07 | vs CIN | 109 | W 3-1 | 54-55 | 3 | 35,801 | Mike LaCoss | Bill Gullickson | Mike LaCoss | Bill Gullickson | | 512 | 482 | 30 |
| 1987-08-08 | vs CIN | 110 | W 5-2 | 55-55 | 2 | 28,281 | Atlee Hammaker | Tom Browning | Atlee Hammaker | Tom Browning | | 517 | 484 | 33 |
| 1987-08-09 | vs CIN | 111 | W 3-2 | 57-55 | 2 | 0 | Mike Krukow | Ted Power | Mike Krukow | Ted Power | Don Robinson | 520 | 486 | 34 |
| 1987-08-09 | vs CIN | 112 | W 5-2 | 57-55 | 2 | 46,434 | Kelly Downs | Guy Hoffman | Kelly Downs | Guy Hoffman | Craig Lefferts | 525 | 488 | 37 |
| 1987-08-10 | vs HOU | 113 | W 6-5 | 58-55 | 2 | 15,447 | Dave Dravecky | Danny Darwin | Don Robinson | Dave Meads | | 531 | 493 | 38 |
| 1987-08-11 | vs HOU | 114 | L 3-7 | 58-56 | 2 | 22,065 | Mike LaCoss | Jeff Heathcock | Jeff Heathcock | Mike LaCoss | Larry Andersen | 534 | 500 | 34 |
| 1987-08-12 | vs HOU | 115 | W 8-1 | 59-56 | 2 | 23,331 | Atlee Hammaker | Mike Scott | Atlee Hammaker | Mike Scott | Don Robinson | 542 | 501 | 41 |
| 1987-08-13 | vs HOU | 116 | W 7-6 | 60-56 | 2 | 20,122 | Mike Krukow | Nolan Ryan | Craig Lefferts | Rocky Childress | | 549 | 507 | 42 |
| 1987-08-14 | vs LAN | 117 | L 3-4 | 60-57 | 2 | 34,108 | Kelly Downs | Shawn Hillegas | Shawn Hillegas | Kelly Downs | Tim Crews | 552 | 511 | 41 |
| 1987-08-15 | vs LAN | 118 | W 5-0 | 61-57 | 2 | 43,480 | Dave Dravecky | Fernando Valenzuela | Dave Dravecky | Fernando Valenzuela | | 557 | 511 | 46 |
| 1987-08-16 | vs LAN | 119 | W 1-0 | 62-57 | 2 | 52,374 | Mike LaCoss | Bob Welch | Mike LaCoss | Tim Leary | | 558 | 511 | 47 |
| 1987-08-18 | @ NYN | 120 | L 2-7 | 62-58 | 2 | 41,587 | Atlee Hammaker | Dwight Gooden | Dwight Gooden | Atlee Hammaker | | 560 | 518 | 42 |
| 1987-08-19 | @ NYN | 121 | W 10-6 | 63-58 | 1 | 50,511 | Mike Krukow | John Mitchell | Scott Garrelts | Roger McDowell | | 570 | 524 | 46 |
| 1987-08-20 | @ NYN | 122 | L 4-7 | 63-59 | 2 | 35,950 | Kelly Downs | Terry Leach | David Cone | Kelly Downs | Randy Myers | 574 | 531 | 43 |
| 1987-08-21 | @ MON | 123 | W 6-3 | 64-59 | 1 | 30,294 | Dave Dravecky | Dennis Martinez | Dave Dravecky | Dennis Martinez | Don Robinson | 580 | 534 | 46 |
| 1987-08-22 | @ MON | 124 | L 4-5 | 64-60 | 1 | 33,294 | Mike LaCoss | Pascual Perez | Tim Burke | Craig Lefferts | | 584 | 539 | 45 |
| 1987-08-23 | @ MON | 125 | W 5-3 | 65-60 | 1 | 35,250 | Atlee Hammaker | Bob Sebra | Kelly Downs | Bob Sebra | Don Robinson | 589 | 542 | 47 |
| 1987-08-24 | @ PHI | 126 | W 6-1 | 66-60 | 1 | 30,237 | Rick Reuschel | Bruce Ruffin | Rick Reuschel | Bruce Ruffin | | 595 | 543 | 52 |
| 1987-08-25 | @ PHI | 127 | W 3-2 | 67-60 | 1 | 28,841 | Kelly Downs | Kevin Gross | Scott Garrelts | Kevin Gross | | 598 | 545 | 53 |
| 1987-08-26 | @ PHI | 128 | W 2-0 | 68-60 | 1 | 23,776 | Dave Dravecky | Shane Rawley | Don Robinson | Shane Rawley | | 600 | 545 | 55 |
| 1987-08-28 | vs NYN | 129 | L 0-4 | 68-61 | 1 | 36,507 | Mike LaCoss | Dwight Gooden | Dwight Gooden | Mike LaCoss | | 600 | 549 | 51 |
| 1987-08-29 | vs NYN | 130 | W 9-1 | 69-61 | 1 | 35,842 | Atlee Hammaker | Sid Fernandez | Atlee Hammaker | Sid Fernandez | | 609 | 550 | 59 |
| 1987-08-30 | vs NYN | 131 | L 3-5 | 69-62 | 1 | 36,362 | Rick Reuschel | Rick Aguilera | Rick Aguilera | Rick Reuschel | Roger McDowell | 612 | 555 | 57 |
| 1987-08-31 | vs MON | 132 | W 5-0 | 70-62 | 1 | 13,633 | Dave Dravecky | Dennis Martinez | Dave Dravecky | Dennis Martinez | | 617 | 555 | 62 |
| 1987-09-01 | vs MON | 133 | W 14-4 | 71-62 | 1 | 14,644 | Rick Reuschel | Floyd Youmans | Rick Reuschel | Floyd Youmans | | 631 | 559 | 72 |
| 1987-09-02 | vs MON | 134 | L 3-7 | 71-63 | 1 | 18,154 | Mike LaCoss | Pascual Perez | Pascual Perez | Mike LaCoss | Tim Burke | 634 | 566 | 68 |
| 1987-09-04 | vs PHI | 135 | W 3-2 | 72-63 | 1 | 16,644 | Atlee Hammaker | Bruce Ruffin | Don Robinson | Wally Ritchie | | 637 | 568 | 69 |
| 1987-09-05 | vs PHI | 136 | W 6-3 | 73-63 | 1 | 22,694 | Dave Dravecky | Shane Rawley | Dave Dravecky | Shane Rawley | Kelly Downs | 643 | 571 | 72 |
| 1987-09-06 | vs PHI | 137 | W 4-1 | 74-63 | 1 | 40,768 | Rick Reuschel | Freddie Toliver | Rick Reuschel | Freddie Toliver | | 647 | 572 | 75 |
| 1987-09-07 | @ HOU | 138 | L 2-4 | 74-64 | 1 | 22,074 | Mike LaCoss | Mike Scott | Mike Scott | Mike LaCoss | | 649 | 576 | 73 |
| 1987-09-08 | @ HOU | 139 | W 6-4 | 75-64 | 1 | 22,119 | Mike Krukow | Jim Deshaies | Don Robinson | Larry Andersen | | 655 | 580 | 75 |
| 1987-09-09 | @ HOU | 140 | L 2-4 | 75-65 | 1 | 25,620 | Atlee Hammaker | Nolan Ryan | Nolan Ryan | Atlee Hammaker | Dave Smith | 657 | 584 | 73 |
| 1987-09-11 | @ CIN | 141 | L 3-4 | 75-66 | 1 | 28,444 | Dave Dravecky | Dennis Rasmussen | Dennis Rasmussen | Dave Dravecky | Rob Murphy | 660 | 588 | 72 |
| 1987-09-12 | @ CIN | 142 | W 7-1 | 76-66 | 1 | 35,714 | Rick Reuschel | Ted Power | Rick Reuschel | Ted Power | | 667 | 589 | 78 |
| 1987-09-13 | @ CIN | 143 | W 6-1 | 77-66 | 1 | 25,835 | Mike LaCoss | Tom Browning | Mike LaCoss | Tom Browning | Don Robinson | 673 | 590 | 83 |
| 1987-09-14 | vs SDN | 144 | W 4-3 | 78-66 | 1 | 11,378 | Mike Krukow | Ed Whitson | Craig Lefferts | Lance McCullers | | 677 | 593 | 84 |
| 1987-09-15 | vs SDN | 145 | W 13-3 | 79-66 | 1 | 16,252 | Atlee Hammaker | Eric Nolte | Atlee Hammaker | Eric Nolte | | 690 | 596 | 94 |
| 1987-09-16 | vs HOU | 146 | W 7-1 | 80-66 | 1 | 25,762 | Dave Dravecky | Mike Scott | Dave Dravecky | Mike Scott | | 697 | 597 | 100 |
| 1987-09-17 | vs HOU | 147 | W 4-0 | 81-66 | 1 | 23,317 | Rick Reuschel | Danny Darwin | Rick Reuschel | Danny Darwin | | 701 | 597 | 104 |
| 1987-09-19 | vs CIN | 148 | W 5-1 | 82-66 | 1 | 44,665 | Mike LaCoss | Tom Browning | Mike LaCoss | Tom Browning | Don Robinson | 706 | 598 | 108 |
| 1987-09-20 | vs CIN | 149 | L 6-10 | 82-67 | 1 | 48,274 | Mike Krukow | Ron Robinson | Rob Murphy | Don Robinson | | 712 | 608 | 104 |
| 1987-09-21 | vs LAN | 150 | L 2-4 | 82-68 | 1 | 22,522 | Atlee Hammaker | Bob Welch | Bob Welch | Kelly Downs | Tim Leary | 714 | 612 | 102 |
| 1987-09-22 | vs LAN | 151 | L 3-4 | 82-69 | 1 | 27,317 | Dave Dravecky | Fernando Valenzuela | Fernando Valenzuela | Dave Dravecky | Alejandro Pena | 717 | 616 | 101 |
| 1987-09-23 | vs LAN | 152 | W 9-8 | 83-69 | 1 | 29,827 | Rick Reuschel | Orel Hershiser | Craig Lefferts | Orel Hershiser | Don Robinson | 726 | 624 | 102 |
| 1987-09-25 | @ ATL | 153 | W 9-2 | 84-69 | 1 | 6,520 | Mike Krukow | Tom Glavine | Mike Krukow | Tom Glavine | | 735 | 626 | 109 |
| 1987-09-26 | @ ATL | 154 | L 5-10 | 84-70 | 1 | 15,837 | Mike LaCoss | David Palmer | Charlie Puleo | Rick Reuschel | Paul Assenmacher | 740 | 636 | 104 |
| 1987-09-27 | @ ATL | 155 | W 15-6 | 85-70 | 1 | 26,019 | Atlee Hammaker | Phil Niekro | Joe Price | Chuck Cary | | 755 | 642 | 113 |
| 1987-09-28 | @ SDN | 156 | W 5-4 | 86-70 | 1 | 29,844 | Dave Dravecky | Eric Show | Don Robinson | Lance McCullers | | 760 | 646 | 114 |
| 1987-09-29 | @ SDN | 157 | W 5-3 | 87-70 | 1 | 9,682 | Kelly Downs | Jimmy Jones | Kelly Downs | Jimmy Jones | Craig Lefferts | 765 | 649 | 116 |
| 1987-09-30 | @ LAN | 158 | W 3-0 | 88-70 | 1 | 28,468 | Mike Krukow | Tim Belcher | Mike Krukow | Tim Belcher | Joe Price | 768 | 649 | 119 |
| 1987-10-01 | @ LAN | 159 | L 0-7 | 88-71 | 1 | 31,914 | Rick Reuschel | Bob Welch | Bob Welch | Rick Reuschel | | 768 | 656 | 112 |
| 1987-10-02 | vs ATL | 160 | L 4-6 | 88-72 | 1 | 30,735 | Dave Dravecky | Kevin Coffman | Kevin Coffman | Dave Dravecky | Jim Acker | 772 | 662 | 110 |
| 1987-10-03 | vs ATL | 161 | W 6-3 | 89-72 | 1 | 25,061 | Kelly Downs | Marty Clary | Kelly Downs | Marty Clary | | 778 | 665 | 113 |
| 1987-10-04 | vs ATL | 162 | W 5-4 | 90-72 | 1 | 51,216 | Atlee Hammaker | Pete Smith | Randy Bockus | Jim Acker | | 783 | 669 | 114 |