| 1987-04-06 | vs MON | 1 | W 11-5 | 1-0 | 1 | 55,166 | Tom Browning | Floyd Youmans | Bill Landrum | Floyd Youmans | | 11 | 5 | 6 |
| 1987-04-08 | vs MON | 2 | W 7-2 | 2-0 | 2 | 13,658 | Bill Gullickson | Jay Tibbs | Bill Gullickson | Jay Tibbs | | 18 | 7 | 11 |
| 1987-04-10 | vs SDN | 3 | W 6-3 | 3-0 | 1 | 26,305 | Ted Power | Storm Davis | Rob Murphy | Dave Dravecky | John Franco | 24 | 10 | 14 |
| 1987-04-11 | vs SDN | 4 | W 5-1 | 4-0 | 1 | 19,621 | Tom Browning | Eric Show | Tom Browning | Eric Show | | 29 | 11 | 18 |
| 1987-04-12 | vs SDN | 5 | L 2-5 | 4-1 | 3 | 23,236 | Guy Hoffman | Ed Whitson | Ed Whitson | Guy Hoffman | Lance McCullers | 31 | 16 | 15 |
| 1987-04-13 | @ ATL | 6 | W 7-2 | 5-1 | 2 | 10,678 | Bill Gullickson | Zane Smith | Bill Gullickson | Zane Smith | | 38 | 18 | 20 |
| 1987-04-14 | @ ATL | 7 | W 6-3 | 6-1 | 1 | 8,768 | Ted Power | David Palmer | Ted Power | David Palmer | John Franco | 44 | 21 | 23 |
| 1987-04-15 | @ ATL | 8 | L 3-4 | 6-2 | 3 | 8,990 | Tom Browning | Rick Mahler | Rick Mahler | Tom Browning | Gene Garber | 47 | 25 | 22 |
| 1987-04-17 | vs HOU | 9 | W 9-8 | 7-2 | 1 | 26,396 | Bill Landrum | Bob Knepper | Rob Murphy | Bob Knepper | John Franco | 56 | 33 | 23 |
| 1987-04-18 | vs HOU | 10 | W 8-0 | 8-2 | 1 | 27,509 | Bill Gullickson | Nolan Ryan | Bill Gullickson | Nolan Ryan | | 64 | 33 | 31 |
| 1987-04-19 | vs HOU | 11 | L 3-7 | 9-3 | 2 | 0 | Tom Browning | Mike Scott | Mike Scott | Tom Browning | | 67 | 40 | 27 |
| 1987-04-19 | vs HOU | 12 | W 6-2 | 9-3 | 2 | 31,005 | Ted Power | Danny Darwin | Ted Power | Danny Darwin | Ron Robinson | 73 | 42 | 31 |
| 1987-04-20 | @ SDN | 13 | W 12-3 | 10-3 | 2 | 11,295 | Guy Hoffman | Storm Davis | Guy Hoffman | Storm Davis | | 85 | 45 | 40 |
| 1987-04-21 | @ SDN | 14 | L 2-3 | 10-4 | 2 | 12,983 | Mario Soto | Eric Show | Lance McCullers | Rob Murphy | | 87 | 48 | 39 |
| 1987-04-22 | @ SDN | 15 | L 3-6 | 10-5 | 2 | 13,852 | Bill Landrum | Ed Whitson | Ed Whitson | Bill Landrum | Craig Lefferts | 90 | 54 | 36 |
| 1987-04-23 | @ SDN | 16 | W 3-2 | 11-5 | 1 | 15,966 | Tom Browning | Andy Hawkins | Tom Browning | Andy Hawkins | Ron Robinson | 93 | 56 | 37 |
| 1987-04-24 | @ HOU | 17 | W 4-3 | 12-5 | 1 | 26,749 | Bill Gullickson | Mike Scott | Rob Murphy | Charlie Kerfeld | Ron Robinson | 97 | 59 | 38 |
| 1987-04-25 | @ HOU | 18 | W 3-0 | 13-5 | 1 | 43,445 | Ted Power | Nolan Ryan | John Franco | Larry Andersen | Frank Williams | 100 | 59 | 41 |
| 1987-04-26 | @ HOU | 19 | W 11-3 | 14-5 | 1 | 21,900 | Mario Soto | Bob Knepper | Mario Soto | Bob Knepper | | 111 | 62 | 49 |
| 1987-04-28 | vs ATL | 20 | L 3-7 | 14-6 | 2 | 16,553 | Tom Browning | Randy O'Neal | Randy O'Neal | Tom Browning | | 114 | 69 | 45 |
| 1987-04-29 | vs ATL | 21 | L 2-5 | 14-7 | 2 | 17,988 | Bill Gullickson | Zane Smith | Zane Smith | Bill Gullickson | Gene Garber | 116 | 74 | 42 |
| 1987-04-30 | vs ATL | 22 | W 9-8 | 15-7 | 2 | 21,214 | Ted Power | David Palmer | Bill Landrum | Steve Ziem | | 125 | 82 | 43 |
| 1987-05-01 | @ PHI | 23 | W 8-5 | 16-7 | 1 | 21,249 | Mario Soto | Don Carman | Mario Soto | Don Carman | Ron Robinson | 133 | 87 | 46 |
| 1987-05-02 | @ PHI | 24 | L 3-8 | 16-8 | 1 | 32,103 | Tom Browning | Bruce Ruffin | Bruce Ruffin | Tom Browning | | 136 | 95 | 41 |
| 1987-05-03 | @ PHI | 25 | W 9-6 | 17-8 | 1 | 33,062 | Bill Gullickson | Kevin Gross | Bill Gullickson | Kevin Gross | John Franco | 145 | 101 | 44 |
| 1987-05-05 | @ NYN | 26 | W 2-0 | 18-8 | 1 | 20,037 | Ted Power | Sid Fernandez | Ted Power | Sid Fernandez | John Franco | 147 | 101 | 46 |
| 1987-05-06 | @ NYN | 27 | L 2-3 | 18-9 | 1 | 26,327 | Mario Soto | Rick Aguilera | Rick Aguilera | Mario Soto | Jesse Orosco | 149 | 104 | 45 |
| 1987-05-08 | vs PHI | 28 | W 4-3 | 19-9 | 1 | 37,176 | Tom Browning | Bruce Ruffin | Tom Browning | Bruce Ruffin | John Franco | 153 | 107 | 46 |
| 1987-05-09 | vs PHI | 29 | L 2-4 | 19-10 | 2 | 36,910 | Bill Gullickson | Kevin Gross | Kevin Gross | Bill Gullickson | | 155 | 111 | 44 |
| 1987-05-10 | vs PHI | 30 | L 3-4 | 19-11 | 2 | 29,867 | Ted Power | Shane Rawley | Shane Rawley | Ted Power | Steve Bedrosian | 158 | 115 | 43 |
| 1987-05-11 | vs NYN | 31 | W 12-2 | 20-11 | 2 | 23,566 | Mario Soto | Rick Aguilera | Mario Soto | Rick Aguilera | | 170 | 117 | 53 |
| 1987-05-12 | vs NYN | 32 | L 2-6 | 20-12 | 2 | 26,604 | Jerry Reuss | David Cone | David Cone | Jerry Reuss | | 172 | 123 | 49 |
| 1987-05-13 | @ MON | 33 | W 12-6 | 21-12 | 1 | 11,265 | Tom Browning | Neal Heaton | Tom Browning | Randy St. Claire | | 184 | 129 | 55 |
| 1987-05-14 | @ MON | 34 | W 10-9 | 22-12 | 1 | 7,206 | Bill Gullickson | Bob Sebra | Ron Robinson | Randy St. Claire | John Franco | 194 | 138 | 56 |
| 1987-05-15 | @ SLN | 35 | L 4-5 | 22-13 | 1 | 46,434 | Ted Power | Danny Cox | Danny Cox | Ted Power | Todd Worrell | 198 | 143 | 55 |
| 1987-05-16 | @ SLN | 36 | L 5-6 | 22-14 | 1 | 46,887 | Mario Soto | Tim Conroy | Tim Conroy | Mario Soto | Todd Worrell | 203 | 149 | 54 |
| 1987-05-17 | @ SLN | 37 | L 2-10 | 22-15 | 1 | 47,187 | Jerry Reuss | Lee Tunnell | Lee Tunnell | Jerry Reuss | | 205 | 159 | 46 |
| 1987-05-19 | @ CHN | 38 | L 2-9 | 22-16 | 2 | 28,890 | Tom Browning | Rick Sutcliffe | Rick Sutcliffe | Tom Browning | Ed Lynch | 207 | 168 | 39 |
| 1987-05-20 | @ CHN | 39 | W 6-2 | 23-16 | 2 | 27,150 | Bill Gullickson | Greg Maddux | Bill Gullickson | Greg Maddux | | 213 | 170 | 43 |
| 1987-05-21 | @ CHN | 40 | L 7-8 | 23-17 | 2 | 21,718 | Ted Power | Jamie Moyer | Lee Smith | John Franco | | 220 | 178 | 42 |
| 1987-05-22 | vs PIT | 41 | L 1-4 | 23-18 | 2 | 25,678 | Jerry Reuss | Rick Reuschel | Rick Reuschel | Ron Robinson | John Smiley | 221 | 182 | 39 |
| 1987-05-23 | vs PIT | 42 | L 2-3 | 23-19 | 2 | 33,887 | Pat Pacillo | Bob Kipper | Bob Kipper | Pat Pacillo | Don Robinson | 223 | 185 | 38 |
| 1987-05-24 | vs PIT | 43 | L 2-7 | 23-20 | 2 | 30,082 | Tom Browning | Brian Fisher | Brian Fisher | Tom Browning | | 225 | 192 | 33 |
| 1987-05-25 | vs CHN | 44 | W 5-4 | 24-20 | 2 | 24,684 | Bill Gullickson | Greg Maddux | Bill Gullickson | Greg Maddux | John Franco | 230 | 196 | 34 |
| 1987-05-26 | vs CHN | 45 | W 3-2 | 25-20 | 2 | 21,388 | Ted Power | Scott Sanderson | John Franco | Lee Smith | | 233 | 198 | 35 |
| 1987-05-27 | vs CHN | 46 | L 1-4 | 25-21 | 2 | 23,304 | Jerry Reuss | Jamie Moyer | Jamie Moyer | Jerry Reuss | Lee Smith | 234 | 202 | 32 |
| 1987-05-29 | @ PIT | 47 | W 13-6 | 26-21 | 1 | 26,835 | Pat Pacillo | Bob Kipper | Guy Hoffman | Bob Kipper | | 247 | 208 | 39 |
| 1987-05-30 | @ PIT | 48 | W 6-2 | 27-21 | 1 | 28,853 | Bill Gullickson | Dorn Taylor | Bill Gullickson | Dorn Taylor | | 253 | 210 | 43 |
| 1987-05-31 | @ PIT | 49 | W 5-2 | 28-21 | 1 | 24,786 | Ted Power | Doug Drabek | Ted Power | Doug Drabek | John Franco | 258 | 212 | 46 |
| 1987-06-01 | vs SLN | 50 | L 6-8 | 28-22 | 1 | 18,245 | Jerry Reuss | Bob Forsch | Todd Worrell | Ron Robinson | | 264 | 220 | 44 |
| 1987-06-02 | vs SLN | 51 | W 3-2 | 29-22 | 1 | 17,910 | Tom Browning | Lee Tunnell | Guy Hoffman | Lee Tunnell | John Franco | 267 | 222 | 45 |
| 1987-06-03 | vs SLN | 52 | W 6-4 | 30-22 | 1 | 19,807 | Pat Pacillo | Tim Conroy | Pat Pacillo | Tim Conroy | John Franco | 273 | 226 | 47 |
| 1987-06-05 | vs LAN | 53 | W 8-6 | 31-22 | 1 | 33,556 | Bill Gullickson | Rick Honeycutt | Guy Hoffman | Ken Howell | John Franco | 281 | 232 | 49 |
| 1987-06-06 | vs LAN | 54 | W 5-2 | 32-22 | 1 | 33,716 | Ted Power | Fernando Valenzuela | Ted Power | Fernando Valenzuela | | 286 | 234 | 52 |
| 1987-06-07 | vs LAN | 55 | L 7-13 | 32-23 | 1 | 34,037 | Jerry Reuss | Bob Welch | Bob Welch | Jerry Reuss | | 293 | 247 | 46 |
| 1987-06-08 | vs SFN | 56 | W 7-6 | 33-23 | 1 | 23,566 | Tom Browning | Mike LaCoss | John Franco | Scott Garrelts | | 300 | 253 | 47 |
| 1987-06-09 | vs SFN | 57 | L 2-10 | 33-24 | 1 | 26,178 | Pat Pacillo | Mark Davis | Mark Davis | Pat Pacillo | | 302 | 263 | 39 |
| 1987-06-10 | vs SFN | 58 | L 4-9 | 33-25 | 1 | 32,320 | Bill Gullickson | Jim Gott | Keith Comstock | Bill Gullickson | Scott Garrelts | 306 | 272 | 34 |
| 1987-06-11 | vs ATL | 59 | L 4-6 | 33-26 | 1 | 24,446 | Ted Power | Larry McWilliams | Charlie Puleo | Rob Murphy | Gene Garber | 310 | 278 | 32 |
| 1987-06-12 | vs ATL | 60 | L 3-4 | 33-27 | 1 | 27,244 | Jerry Reuss | Rick Mahler | Rick Mahler | Jerry Reuss | Jim Acker | 313 | 282 | 31 |
| 1987-06-13 | vs ATL | 61 | W 5-2 | 34-27 | 1 | 36,525 | Guy Hoffman | David Palmer | Guy Hoffman | David Palmer | | 318 | 284 | 34 |
| 1987-06-14 | vs ATL | 62 | W 4-3 | 35-27 | 1 | 28,898 | Pat Pacillo | Zane Smith | Rob Murphy | Gene Garber | John Franco | 322 | 287 | 35 |
| 1987-06-15 | @ HOU | 63 | L 0-4 | 35-28 | 1 | 25,672 | Bill Gullickson | Mike Scott | Mike Scott | Bill Gullickson | | 322 | 291 | 31 |
| 1987-06-16 | @ HOU | 64 | L 1-4 | 35-29 | 1 | 21,929 | Ted Power | Jim Deshaies | Jim Deshaies | Ted Power | Dave Smith | 323 | 295 | 28 |
| 1987-06-17 | @ HOU | 65 | W 9-1 | 36-29 | 1 | 31,236 | Ron Robinson | Nolan Ryan | Ron Robinson | Nolan Ryan | Bill Landrum | 332 | 296 | 36 |
| 1987-06-18 | @ ATL | 66 | W 8-4 | 37-29 | 1 | 16,988 | Guy Hoffman | David Palmer | Guy Hoffman | David Palmer | John Franco | 340 | 300 | 40 |
| 1987-06-19 | @ ATL | 67 | L 5-16 | 37-30 | 1 | 25,970 | Pat Pacillo | Zane Smith | Zane Smith | Pat Pacillo | Jeff Dedmon | 345 | 316 | 29 |
| 1987-06-20 | @ ATL | 68 | L 6-8 | 37-31 | 1 | 35,313 | Bill Gullickson | Doyle Alexander | Doyle Alexander | Bill Gullickson | Gene Garber | 351 | 324 | 27 |
| 1987-06-21 | @ ATL | 69 | W 6-5 | 38-31 | 1 | 28,176 | Ted Power | Rick Mahler | Bill Landrum | Gene Garber | | 357 | 329 | 28 |
| 1987-06-23 | @ SFN | 70 | W 4-1 | 39-31 | 1 | 23,906 | Ron Robinson | Atlee Hammaker | Ron Robinson | Atlee Hammaker | John Franco | 361 | 330 | 31 |
| 1987-06-24 | @ SFN | 71 | W 5-4 | 40-31 | 1 | 27,985 | Guy Hoffman | Mark Grant | John Franco | Scott Garrelts | | 366 | 334 | 32 |
| 1987-06-25 | @ SFN | 72 | L 6-7 | 40-32 | 1 | 22,112 | Bill Gullickson | Mike Krukow | Scott Garrelts | Rob Murphy | | 372 | 341 | 31 |
| 1987-06-26 | @ LAN | 73 | W 6-0 | 41-32 | 1 | 41,458 | Ted Power | Rick Honeycutt | Ted Power | Rick Honeycutt | | 378 | 341 | 37 |
| 1987-06-27 | @ LAN | 74 | L 3-4 | 41-33 | 1 | 45,299 | Ron Robinson | Tim Leary | Matt Young | John Franco | | 381 | 345 | 36 |
| 1987-06-28 | @ LAN | 75 | L 2-4 | 41-34 | 1 | 46,625 | Guy Hoffman | Fernando Valenzuela | Fernando Valenzuela | Guy Hoffman | | 383 | 349 | 34 |
| 1987-06-30 | vs HOU | 76 | W 5-4 | 42-34 | 1 | 28,693 | Bill Gullickson | Mike Scott | John Franco | Larry Andersen | | 388 | 353 | 35 |
| 1987-07-01 | vs HOU | 77 | W 6-4 | 43-34 | 1 | 23,280 | Ted Power | Danny Darwin | Bill Scherrer | Danny Darwin | John Franco | 394 | 357 | 37 |
| 1987-07-02 | vs NYN | 78 | L 0-5 | 43-35 | 1 | 27,777 | Ron Robinson | Terry Leach | Terry Leach | Ron Robinson | | 394 | 362 | 32 |
| 1987-07-03 | vs NYN | 79 | W 8-3 | 44-35 | 1 | 41,649 | Guy Hoffman | Ron Darling | Guy Hoffman | Ron Darling | Bill Landrum | 402 | 365 | 37 |
| 1987-07-04 | vs NYN | 80 | W 7-3 | 45-35 | 1 | 43,296 | Bill Gullickson | John Mitchell | Bill Gullickson | John Mitchell | | 409 | 368 | 41 |
| 1987-07-05 | vs NYN | 81 | W 7-5 | 46-35 | 1 | 34,716 | Tom Browning | Dwight Gooden | Tom Browning | Dwight Gooden | John Franco | 416 | 373 | 43 |
| 1987-07-06 | vs PHI | 82 | L 6-9 | 46-36 | 1 | 18,802 | Ted Power | Shane Rawley | Michael Jackson | Ted Power | Steve Bedrosian | 422 | 382 | 40 |
| 1987-07-07 | vs PHI | 83 | L 8-10 | 46-37 | 1 | 22,553 | Ron Robinson | Don Carman | Kent Tekulve | John Franco | Steve Bedrosian | 430 | 392 | 38 |
| 1987-07-08 | vs PHI | 84 | L 2-7 | 46-38 | 1 | 26,082 | Guy Hoffman | Bruce Ruffin | Bruce Ruffin | Guy Hoffman | | 432 | 399 | 33 |
| 1987-07-09 | vs MON | 85 | W 7-2 | 47-38 | 1 | 19,068 | Bill Gullickson | Neal Heaton | Bill Gullickson | Neal Heaton | | 439 | 401 | 38 |
| 1987-07-10 | vs MON | 86 | L 1-5 | 47-39 | 1 | 29,310 | Tom Browning | Bryn Smith | Bryn Smith | Tom Browning | | 440 | 406 | 34 |
| 1987-07-11 | vs MON | 87 | L 5-11 | 47-40 | 1 | 37,942 | Ted Power | Dennis Martinez | Dennis Martinez | Ted Power | Tim Burke | 445 | 417 | 28 |
| 1987-07-12 | vs MON | 88 | L 2-4 | 47-41 | 1 | 34,790 | Guy Hoffman | Bob Sebra | Bob Sebra | Guy Hoffman | Andy McGaffigan | 447 | 421 | 26 |
| 1987-07-16 | @ NYN | 89 | L 0-9 | 47-42 | 1 | 42,101 | Bill Gullickson | Dwight Gooden | Dwight Gooden | Bill Gullickson | | 447 | 430 | 17 |
| 1987-07-17 | @ NYN | 90 | W 5-2 | 48-42 | 1 | 44,119 | Tom Browning | Ron Darling | Frank Williams | Ron Darling | John Franco | 452 | 432 | 20 |
| 1987-07-18 | @ NYN | 91 | W 7-3 | 49-42 | 1 | 47,135 | Ted Power | Sid Fernandez | Ted Power | Sid Fernandez | Rob Murphy | 459 | 435 | 24 |
| 1987-07-19 | @ NYN | 92 | L 5-6 | 49-43 | 1 | 45,255 | Guy Hoffman | John Mitchell | Jesse Orosco | Bill Scherrer | | 464 | 441 | 23 |
| 1987-07-20 | @ PHI | 93 | W 10-6 | 50-43 | 1 | 27,347 | Ron Robinson | Tom Hume | John Franco | Michael Jackson | | 474 | 447 | 27 |
| 1987-07-21 | @ PHI | 94 | W 4-3 | 51-43 | 1 | 27,184 | Bill Gullickson | Kevin Gross | Bill Gullickson | Kevin Gross | Rob Murphy | 478 | 450 | 28 |
| 1987-07-22 | @ PHI | 95 | L 3-5 | 51-44 | 1 | 28,046 | Tom Browning | Shane Rawley | Shane Rawley | Tom Browning | Steve Bedrosian | 481 | 455 | 26 |
| 1987-07-23 | @ MON | 96 | W 8-4 | 52-44 | 1 | 21,361 | Ted Power | Bryn Smith | Ted Power | Bryn Smith | | 489 | 459 | 30 |
| 1987-07-24 | @ MON | 97 | L 2-3 | 52-45 | 1 | 20,496 | Guy Hoffman | Neal Heaton | Neal Heaton | Guy Hoffman | Tim Burke | 491 | 462 | 29 |
| 1987-07-25 | @ MON | 98 | L 3-4 | 52-46 | 1 | 30,113 | Ron Robinson | Dennis Martinez | Andy McGaffigan | Bill Landrum | | 494 | 466 | 28 |
| 1987-07-26 | @ MON | 99 | L 0-6 | 52-47 | 1 | 37,989 | Bill Gullickson | Floyd Youmans | Floyd Youmans | Bill Gullickson | | 494 | 472 | 22 |
| 1987-07-28 | vs SDN | 100 | W 8-7 | 53-47 | 1 | 24,209 | Tom Browning | Mark Grant | John Franco | Mark Davis | | 502 | 479 | 23 |
| 1987-07-29 | vs SDN | 101 | W 15-5 | 54-47 | 1 | 20,914 | Ted Power | Eric Show | Rob Murphy | Eric Show | | 517 | 484 | 33 |
| 1987-07-30 | vs SDN | 102 | L 8-12 | 54-48 | 1 | 25,780 | Guy Hoffman | Jimmy Jones | Jimmy Jones | Guy Hoffman | | 525 | 496 | 29 |
| 1987-07-31 | vs SFN | 103 | W 9-2 | 55-48 | 1 | 38,753 | Ron Robinson | Dave Dravecky | Ron Robinson | Dave Dravecky | | 534 | 498 | 36 |
| 1987-08-01 | vs SFN | 104 | L 3-7 | 55-49 | 1 | 35,911 | Bill Gullickson | Mike LaCoss | Mike LaCoss | Bill Gullickson | | 537 | 505 | 32 |
| 1987-08-02 | vs SFN | 105 | W 5-4 | 56-49 | 1 | 44,368 | Tom Browning | Atlee Hammaker | Jeff Montgomery | Jeff Robinson | | 542 | 509 | 33 |
| 1987-08-03 | vs LAN | 106 | L 2-7 | 56-50 | 1 | 27,224 | Ted Power | Orel Hershiser | Orel Hershiser | Ted Power | | 544 | 516 | 28 |
| 1987-08-04 | vs LAN | 107 | W 10-4 | 57-50 | 1 | 23,593 | Guy Hoffman | Tim Leary | Guy Hoffman | Tim Leary | | 554 | 520 | 34 |
| 1987-08-05 | vs LAN | 108 | W 6-3 | 58-50 | 1 | 33,879 | Ron Robinson | Fernando Valenzuela | Ron Robinson | Fernando Valenzuela | John Franco | 560 | 523 | 37 |
| 1987-08-07 | @ SFN | 109 | L 1-3 | 58-51 | 1 | 35,801 | Bill Gullickson | Mike LaCoss | Mike LaCoss | Bill Gullickson | | 561 | 526 | 35 |
| 1987-08-08 | @ SFN | 110 | L 2-5 | 58-52 | 1 | 28,281 | Tom Browning | Atlee Hammaker | Atlee Hammaker | Tom Browning | | 563 | 531 | 32 |
| 1987-08-09 | @ SFN | 111 | L 2-3 | 58-54 | 1 | 0 | Ted Power | Mike Krukow | Mike Krukow | Ted Power | Don Robinson | 565 | 534 | 31 |
| 1987-08-09 | @ SFN | 112 | L 2-5 | 58-54 | 1 | 46,434 | Guy Hoffman | Kelly Downs | Kelly Downs | Guy Hoffman | Craig Lefferts | 567 | 539 | 28 |
| 1987-08-10 | @ LAN | 113 | W 4-3 | 59-54 | 1 | 37,000 | Ron Robinson | Fernando Valenzuela | Frank Williams | Fernando Valenzuela | John Franco | 571 | 542 | 29 |
| 1987-08-11 | @ LAN | 114 | L 2-7 | 59-55 | 1 | 36,276 | Jeff Montgomery | Bob Welch | Bob Welch | Jeff Montgomery | | 573 | 549 | 24 |
| 1987-08-12 | @ LAN | 115 | L 0-1 | 59-56 | 1 | 38,549 | Bill Gullickson | Tim Leary | Tim Leary | Bill Gullickson | Matt Young | 573 | 550 | 23 |
| 1987-08-13 | @ LAN | 116 | W 5-2 | 60-56 | 1 | 35,207 | Tom Browning | Orel Hershiser | Rob Murphy | Orel Hershiser | John Franco | 578 | 552 | 26 |
| 1987-08-14 | @ SDN | 117 | W 2-0 | 61-57 | 1 | 0 | Ted Power | Eric Show | Ted Power | Eric Show | John Franco | 580 | 552 | 28 |
| 1987-08-14 | @ SDN | 118 | L 8-15 | 61-57 | 1 | 32,080 | Guy Hoffman | Jimmy Jones | Greg Booker | Guy Hoffman | | 588 | 567 | 21 |
| 1987-08-16 | @ SDN | 119 | W 2-0 | 62-57 | 1 | 18,884 | Ron Robinson | Ed Whitson | Ron Robinson | Ed Whitson | John Franco | 590 | 567 | 23 |
| 1987-08-18 | vs PIT | 120 | L 4-7 | 62-58 | 1 | 29,385 | Bill Gullickson | Bob Walk | Bob Walk | Rob Murphy | Jim Gott | 594 | 574 | 20 |
| 1987-08-19 | vs PIT | 121 | L 9-10 | 62-59 | 2 | 24,179 | Tom Browning | Doug Drabek | Doug Drabek | Tom Browning | | 603 | 584 | 19 |
| 1987-08-20 | vs PIT | 122 | W 5-3 | 63-59 | 1 | 22,542 | Ted Power | Mike Dunne | Ted Power | Mike Dunne | John Franco | 608 | 587 | 21 |
| 1987-08-21 | vs SLN | 123 | L 1-2 | 63-60 | 2 | 41,492 | Guy Hoffman | John Tudor | John Tudor | Guy Hoffman | Todd Worrell | 609 | 589 | 20 |
| 1987-08-22 | vs SLN | 124 | L 7-9 | 63-61 | 3 | 43,874 | Ron Robinson | Bob Forsch | Pat Perry | Rob Murphy | Ken Dayley | 616 | 598 | 18 |
| 1987-08-23 | vs SLN | 125 | L 6-12 | 63-62 | 3 | 39,923 | Bill Gullickson | Danny Cox | Danny Cox | Bill Gullickson | | 622 | 610 | 12 |
| 1987-08-24 | @ PIT | 126 | L 4-5 | 63-63 | 3 | 11,020 | Tom Browning | Doug Drabek | Doug Drabek | Tom Browning | Jim Gott | 626 | 615 | 11 |
| 1987-08-25 | @ PIT | 127 | L 0-1 | 63-64 | 3 | 10,149 | Ted Power | Mike Dunne | Mike Dunne | Ted Power | | 626 | 616 | 10 |
| 1987-08-26 | @ PIT | 128 | L 5-6 | 63-65 | 3 | 13,722 | Guy Hoffman | Brian Fisher | Jeff Robinson | John Franco | | 631 | 622 | 9 |
| 1987-08-28 | vs CHN | 129 | L 5-6 | 63-66 | 3 | 28,223 | Ron Robinson | Rick Sutcliffe | Lee Smith | John Franco | | 636 | 628 | 8 |
| 1987-08-29 | vs CHN | 130 | W 4-1 | 64-66 | 3 | 37,783 | Tom Browning | Scott Sanderson | Tom Browning | Scott Sanderson | | 640 | 629 | 11 |
| 1987-08-30 | vs CHN | 131 | L 1-3 | 64-67 | 3 | 33,485 | Dennis Rasmussen | Ed Lynch | Ed Lynch | Dennis Rasmussen | Lee Smith | 641 | 632 | 9 |
| 1987-08-31 | @ SLN | 132 | L 0-4 | 64-68 | 3 | 39,348 | Ted Power | John Tudor | John Tudor | Ted Power | | 641 | 636 | 5 |
| 1987-09-01 | @ SLN | 133 | W 7-4 | 65-68 | 3 | 33,825 | Guy Hoffman | Bob Forsch | Guy Hoffman | Ricky Horton | | 648 | 640 | 8 |
| 1987-09-02 | @ SLN | 134 | W 3-1 | 66-68 | 3 | 34,985 | Ron Robinson | Danny Cox | Frank Williams | Danny Cox | John Franco | 651 | 641 | 10 |
| 1987-09-04 | @ CHN | 135 | W 4-3 | 67-68 | 3 | 19,715 | Tom Browning | Scott Sanderson | Frank Williams | Lee Smith | John Franco | 655 | 644 | 11 |
| 1987-09-05 | @ CHN | 136 | W 10-5 | 68-68 | 3 | 33,336 | Dennis Rasmussen | Ed Lynch | Dennis Rasmussen | Ed Lynch | | 665 | 649 | 16 |
| 1987-09-06 | @ CHN | 137 | L 1-3 | 68-69 | 3 | 33,093 | Ted Power | Les Lancaster | Les Lancaster | Ted Power | Lee Smith | 666 | 652 | 14 |
| 1987-09-07 | vs LAN | 138 | W 3-2 | 69-69 | 3 | 19,361 | Guy Hoffman | Tim Leary | Tom Hume | Brian Holton | | 669 | 654 | 15 |
| 1987-09-08 | vs LAN | 139 | L 3-5 | 69-70 | 3 | 14,759 | Ron Robinson | Orel Hershiser | Orel Hershiser | Ron Robinson | Alejandro Pena | 672 | 659 | 13 |
| 1987-09-09 | vs LAN | 140 | W 4-1 | 70-70 | 3 | 16,255 | Tom Browning | Tim Belcher | Tom Browning | Tim Belcher | | 676 | 660 | 16 |
| 1987-09-11 | vs SFN | 141 | W 4-3 | 71-70 | 2 | 28,444 | Dennis Rasmussen | Dave Dravecky | Dennis Rasmussen | Dave Dravecky | Rob Murphy | 680 | 663 | 17 |
| 1987-09-12 | vs SFN | 142 | L 1-7 | 71-71 | 2 | 35,714 | Ted Power | Rick Reuschel | Rick Reuschel | Ted Power | | 681 | 670 | 11 |
| 1987-09-13 | vs SFN | 143 | L 1-6 | 71-72 | 2 | 25,835 | Tom Browning | Mike LaCoss | Mike LaCoss | Tom Browning | Don Robinson | 682 | 676 | 6 |
| 1987-09-14 | @ ATL | 144 | L 2-3 | 71-73 | 3 | 4,848 | Guy Hoffman | Tom Glavine | Tom Glavine | Guy Hoffman | Jim Acker | 684 | 679 | 5 |
| 1987-09-15 | @ ATL | 145 | W 21-6 | 72-73 | 2 | 4,708 | Ron Robinson | David Palmer | Ron Robinson | David Palmer | | 705 | 685 | 20 |
| 1987-09-17 | @ LAN | 146 | W 3-2 | 73-74 | 2 | 0 | Dennis Rasmussen | Fernando Valenzuela | John Franco | Fernando Valenzuela | | 708 | 687 | 21 |
| 1987-09-17 | @ LAN | 147 | L 3-6 | 73-74 | 2 | 23,829 | Ted Power | Bob Welch | Bob Welch | Ted Power | Alejandro Pena | 711 | 693 | 18 |
| 1987-09-19 | @ SFN | 148 | L 1-5 | 73-75 | 2 | 44,665 | Tom Browning | Mike LaCoss | Mike LaCoss | Tom Browning | Don Robinson | 712 | 698 | 14 |
| 1987-09-20 | @ SFN | 149 | W 10-6 | 74-75 | 2 | 48,274 | Ron Robinson | Mike Krukow | Rob Murphy | Don Robinson | | 722 | 704 | 18 |
| 1987-09-22 | vs SDN | 150 | W 5-3 | 75-75 | 2 | 13,270 | Dennis Rasmussen | Mark Grant | Dennis Rasmussen | Mark Grant | John Franco | 727 | 707 | 20 |
| 1987-09-23 | vs SDN | 151 | L 4-6 | 75-76 | 2 | 17,082 | Ted Power | Eric Show | Mark Davis | Jeff Montgomery | Dave Leiper | 731 | 713 | 18 |
| 1987-09-24 | vs SDN | 152 | W 5-4 | 76-76 | 2 | 12,639 | Guy Hoffman | Jimmy Jones | Pat Pacillo | Lance McCullers | John Franco | 736 | 717 | 19 |
| 1987-09-25 | vs HOU | 153 | W 4-1 | 77-76 | 2 | 21,190 | Tom Browning | Mike Scott | Tom Browning | Mike Scott | Frank Williams | 740 | 718 | 22 |
| 1987-09-26 | vs HOU | 154 | L 3-5 | 77-77 | 2 | 21,306 | Ron Robinson | Danny Darwin | Danny Darwin | Ron Robinson | Larry Andersen | 743 | 723 | 20 |
| 1987-09-27 | vs HOU | 155 | W 4-2 | 78-77 | 2 | 26,923 | Dennis Rasmussen | Bob Knepper | Rob Murphy | Bob Knepper | John Franco | 747 | 725 | 22 |
| 1987-09-28 | vs ATL | 156 | W 6-5 | 79-77 | 2 | 11,982 | Ted Power | Zane Smith | Jeff Montgomery | Zane Smith | John Franco | 753 | 730 | 23 |
| 1987-09-29 | vs ATL | 157 | W 5-4 | 80-77 | 2 | 8,725 | Guy Hoffman | Pete Smith | Pat Perry | Jim Acker | | 758 | 734 | 24 |
| 1987-09-30 | @ SDN | 158 | W 3-1 | 81-77 | 2 | 8,493 | Tom Browning | Andy Hawkins | Tom Browning | Andy Hawkins | John Franco | 761 | 735 | 26 |
| 1987-10-01 | @ SDN | 159 | W 4-3 | 82-77 | 2 | 9,316 | Pat Pacillo | Eric Nolte | Pat Pacillo | Eric Nolte | Pat Perry | 765 | 738 | 27 |
| 1987-10-02 | @ HOU | 160 | W 12-7 | 83-77 | 2 | 19,606 | Dennis Rasmussen | Rob Mallicoat | Dennis Rasmussen | Rocky Childress | | 777 | 745 | 32 |
| 1987-10-03 | @ HOU | 161 | L 4-6 | 83-78 | 2 | 15,962 | Ted Power | Manny Hernandez | Jeff Heathcock | Ted Power | Dave Smith | 781 | 751 | 30 |
| 1987-10-04 | @ HOU | 162 | W 2-1 | 84-78 | 2 | 34,404 | Tom Browning | Nolan Ryan | Tom Browning | Nolan Ryan | John Franco | 783 | 752 | 31 |