| 1990-04-09 | vs PIT | 1 | L 3-12 | 0-1 | 5 | 47,919 | Dwight Gooden | Doug Drabek | Doug Drabek | Dwight Gooden | | 3 | 12 | -9 |
| 1990-04-11 | vs PIT | 2 | W 3-0 | 1-1 | 3 | 16,880 | Frank Viola | John Smiley | Frank Viola | John Smiley | John Franco | 6 | 12 | -6 |
| 1990-04-12 | vs PIT | 3 | L 2-6 | 1-2 | 5 | 16,544 | Sid Fernandez | Neal Heaton | Neal Heaton | Sid Fernandez | | 8 | 18 | -10 |
| 1990-04-13 | @ MON | 4 | W 4-1 | 2-2 | 3 | 44,183 | David Cone | Kevin Gross | Julio Machado | Drew Hall | John Franco | 12 | 19 | -7 |
| 1990-04-14 | @ MON | 5 | L 5-6 | 2-3 | 4 | 16,165 | Dwight Gooden | Dennis Martinez | Dennis Martinez | Dwight Gooden | Steve Frey | 17 | 25 | -8 |
| 1990-04-15 | @ MON | 6 | L 1-3 | 2-4 | 6 | 10,187 | Ron Darling | Zane Smith | Zane Smith | Ron Darling | Tim Burke | 18 | 28 | -10 |
| 1990-04-16 | @ CHN | 7 | W 10-1 | 3-4 | 4 | 13,813 | Frank Viola | Steve Wilson | Frank Viola | Steve Wilson | Alejandro Pena | 28 | 29 | -1 |
| 1990-04-17 | vs CHN | 8 | L 6-8 | 3-5 | 5 | 13,964 | Sid Fernandez | Jose Nunez | Paul Assenmacher | Jeff Innis | Dean Wilkins | 34 | 37 | -3 |
| 1990-04-18 | vs CHN | 9 | L 5-8 | 3-6 | 6 | 21,561 | David Cone | Greg Maddux | Greg Maddux | David Cone | | 39 | 45 | -6 |
| 1990-04-19 | vs CHN | 10 | W 4-1 | 4-6 | 5 | 18,780 | Dwight Gooden | Mike Harkey | Dwight Gooden | Mike Harkey | John Franco | 43 | 46 | -3 |
| 1990-04-20 | vs MON | 11 | L 1-2 | 4-7 | 6 | 24,130 | Ron Darling | Zane Smith | Zane Smith | Ron Darling | Tim Burke | 44 | 48 | -4 |
| 1990-04-21 | vs MON | 12 | W 5-4 | 5-7 | 5 | 20,748 | Frank Viola | Oil Can Boyd | Frank Viola | Oil Can Boyd | John Franco | 49 | 52 | -3 |
| 1990-04-22 | vs MON | 13 | W 5-0 | 6-7 | 5 | 32,843 | Sid Fernandez | Mark Gardner | Sid Fernandez | Mark Gardner | | 54 | 52 | 2 |
| 1990-04-24 | vs ATL | 14 | W 2-1 | 7-7 | 4 | 22,553 | Dwight Gooden | Pete Smith | Julio Machado | Mike Stanton | | 56 | 53 | 3 |
| 1990-04-25 | vs ATL | 15 | W 8-5 | 8-7 | 3 | 19,935 | David Cone | John Smoltz | Ron Darling | Mike Stanton | John Franco | 64 | 58 | 6 |
| 1990-04-27 | @ HOU | 16 | W 1-0 | 9-7 | 3 | 15,862 | Frank Viola | Mark Portugal | Frank Viola | Mark Portugal | John Franco | 65 | 58 | 7 |
| 1990-04-28 | @ HOU | 17 | L 4-8 | 9-8 | 4 | 30,217 | Sid Fernandez | Bill Gullickson | Bill Gullickson | Sid Fernandez | Dave Smith | 69 | 66 | 3 |
| 1990-04-29 | @ HOU | 18 | L 1-2 | 9-9 | 4 | 20,158 | Dwight Gooden | Mike Scott | Danny Darwin | Julio Machado | | 70 | 68 | 2 |
| 1990-04-30 | @ ATL | 19 | L 4-7 | 9-10 | 4 | 8,232 | David Cone | John Smoltz | John Smoltz | David Cone | Joe Boever | 74 | 75 | -1 |
| 1990-05-01 | @ ATL | 20 | L 2-5 | 9-11 | 6 | 8,324 | Ron Darling | Derek Lilliquist | Derek Lilliquist | Ron Darling | Charlie Kerfeld | 76 | 80 | -4 |
| 1990-05-02 | vs CIN | 21 | W 5-0 | 10-11 | 5 | 22,668 | Frank Viola | Tom Browning | Frank Viola | Tom Browning | | 81 | 80 | 1 |
| 1990-05-03 | vs CIN | 22 | L 0-5 | 10-12 | 5 | 26,899 | Sid Fernandez | Jack Armstrong | Jack Armstrong | Sid Fernandez | Randy Myers | 81 | 85 | -4 |
| 1990-05-05 | vs HOU | 23 | L 5-9 | 10-13 | 5 | 23,409 | Dwight Gooden | Mike Scott | Mike Scott | Dwight Gooden | Larry Andersen | 86 | 94 | -8 |
| 1990-05-06 | vs HOU | 24 | W 7-4 | 12-13 | 4 | 0 | David Cone | Jim Deshaies | John Franco | Dave Smith | | 93 | 98 | -5 |
| 1990-05-06 | vs HOU | 25 | W 7-6 | 12-13 | 4 | 32,431 | Ron Darling | Mark Portugal | Alejandro Pena | Dan Schatzeder | | 100 | 104 | -4 |
| 1990-05-07 | vs HOU | 26 | W 7-1 | 13-13 | 4 | 22,719 | Frank Viola | Jim Clancy | Frank Viola | Jim Clancy | Wally Whitehurst | 107 | 105 | 2 |
| 1990-05-08 | vs SFN | 27 | W 4-1 | 14-13 | 4 | 28,228 | Sid Fernandez | Rick Reuschel | Sid Fernandez | Rick Reuschel | John Franco | 111 | 106 | 5 |
| 1990-05-09 | vs SFN | 28 | L 2-4 | 14-14 | 4 | 27,682 | Bob Ojeda | Bob Knepper | Bob Knepper | Bob Ojeda | Steve Bedrosian | 113 | 110 | 3 |
| 1990-05-11 | vs LAN | 29 | W 9-4 | 15-14 | 4 | 34,817 | Dwight Gooden | Mike Morgan | Dwight Gooden | Mike Morgan | | 122 | 114 | 8 |
| 1990-05-12 | vs LAN | 30 | W 7-0 | 16-14 | 4 | 41,935 | Frank Viola | John Wetteland | Frank Viola | John Wetteland | | 129 | 114 | 15 |
| 1990-05-14 | @ SFN | 31 | L 2-4 | 16-15 | 4 | 16,264 | Sid Fernandez | Bob Knepper | Bob Knepper | Sid Fernandez | Steve Bedrosian | 131 | 118 | 13 |
| 1990-05-15 | @ SFN | 32 | L 5-6 | 16-16 | 4 | 16,143 | Ron Darling | John Burkett | Mark Thurmond | Bob Ojeda | Steve Bedrosian | 136 | 124 | 12 |
| 1990-05-16 | @ SFN | 33 | L 3-4 | 16-17 | 4 | 18,985 | Dwight Gooden | Scott Garrelts | Jeff Brantley | Alejandro Pena | | 139 | 128 | 11 |
| 1990-05-18 | @ SDN | 34 | L 3-6 | 16-18 | 4 | 26,905 | Frank Viola | Bruce Hurst | Bruce Hurst | Frank Viola | Craig Lefferts | 142 | 134 | 8 |
| 1990-05-19 | @ SDN | 35 | W 6-4 | 17-18 | 4 | 36,577 | David Cone | Andy Benes | David Cone | Andy Benes | John Franco | 148 | 138 | 10 |
| 1990-05-20 | @ SDN | 36 | L 1-3 | 17-19 | 5 | 25,233 | Sid Fernandez | Dennis Rasmussen | Greg Harris | Ron Darling | Craig Lefferts | 149 | 141 | 8 |
| 1990-05-21 | @ LAN | 37 | W 12-3 | 18-19 | 4 | 39,876 | Dwight Gooden | Mike Morgan | Dwight Gooden | Mike Morgan | Wally Whitehurst | 161 | 144 | 17 |
| 1990-05-22 | @ LAN | 38 | W 8-3 | 19-19 | 4 | 29,064 | Bob Ojeda | Tim Crews | Bob Ojeda | Tim Crews | Alejandro Pena | 169 | 147 | 22 |
| 1990-05-24 | vs SDN | 39 | L 4-5 | 19-20 | 4 | 31,659 | Frank Viola | Andy Benes | Andy Benes | Frank Viola | Craig Lefferts | 173 | 152 | 21 |
| 1990-05-25 | vs SDN | 40 | L 4-5 | 19-21 | 4 | 31,098 | David Cone | Dennis Rasmussen | Dennis Rasmussen | David Cone | Craig Lefferts | 177 | 157 | 20 |
| 1990-05-26 | vs SDN | 41 | W 11-0 | 20-21 | 4 | 26,498 | Sid Fernandez | Mike Dunne | Sid Fernandez | Mike Dunne | | 188 | 157 | 31 |
| 1990-05-27 | vs SDN | 42 | L 4-8 | 20-22 | 4 | 47,876 | Dwight Gooden | Ed Whitson | Ed Whitson | Dwight Gooden | Craig Lefferts | 192 | 165 | 27 |
| 1990-05-29 | @ CIN | 43 | L 1-2 | 20-23 | 4 | 29,156 | Bob Ojeda | Tom Browning | Tom Browning | Bob Ojeda | Randy Myers | 193 | 167 | 26 |
| 1990-06-01 | @ PHI | 44 | W 4-0 | 21-23 | 4 | 34,457 | Frank Viola | Dennis Cook | Frank Viola | Dennis Cook | | 197 | 167 | 30 |
| 1990-06-02 | @ PHI | 45 | L 4-5 | 21-24 | 4 | 41,950 | Dwight Gooden | Ken Howell | Ken Howell | Dwight Gooden | Roger McDowell | 201 | 172 | 29 |
| 1990-06-03 | @ PHI | 46 | L 3-8 | 21-25 | 4 | 43,643 | Sid Fernandez | Pat Combs | Pat Combs | Sid Fernandez | | 204 | 180 | 24 |
| 1990-06-04 | vs MON | 47 | L 3-5 | 21-26 | 5 | 24,433 | David Cone | Mark Gardner | Bill Sampen | David Cone | Dave J. Schmidt | 207 | 185 | 22 |
| 1990-06-05 | vs MON | 48 | W 6-5 | 22-26 | 4 | 26,670 | Bob Ojeda | Oil Can Boyd | John Franco | Dale Mohorcic | | 213 | 190 | 23 |
| 1990-06-06 | vs MON | 49 | W 4-3 | 23-26 | 4 | 26,238 | Frank Viola | Kevin Gross | Frank Viola | Kevin Gross | John Franco | 217 | 193 | 24 |
| 1990-06-07 | vs PIT | 50 | L 4-5 | 23-27 | 4 | 28,443 | Dwight Gooden | Neal Heaton | Scott Ruskin | Jeff Musselman | Bob Kipper | 221 | 198 | 23 |
| 1990-06-08 | vs PIT | 51 | W 7-1 | 24-27 | 4 | 29,710 | Sid Fernandez | Bob Walk | Sid Fernandez | Bob Walk | | 228 | 199 | 29 |
| 1990-06-09 | vs PIT | 52 | W 9-3 | 25-27 | 4 | 38,379 | David Cone | Bob Patterson | David Cone | Bob Patterson | | 237 | 202 | 35 |
| 1990-06-10 | vs PIT | 53 | W 8-3 | 26-27 | 4 | 46,868 | Bob Ojeda | Walt Terrell | Bob Ojeda | Walt Terrell | | 245 | 205 | 40 |
| 1990-06-11 | @ CHN | 54 | L 5-8 | 26-28 | 4 | 33,059 | Frank Viola | Greg Maddux | Mitch Williams | Alejandro Pena | Paul Assenmacher | 250 | 213 | 37 |
| 1990-06-12 | @ CHN | 55 | W 19-8 | 27-28 | 4 | 34,893 | Dwight Gooden | Mike Bielecki | Dwight Gooden | Mike Bielecki | | 269 | 221 | 48 |
| 1990-06-13 | @ CHN | 56 | W 15-10 | 29-28 | 3 | 0 | Sid Fernandez | Jeff Pico | John Franco | Les Lancaster | | 284 | 231 | 53 |
| 1990-06-13 | @ CHN | 57 | W 9-6 | 29-28 | 3 | 34,241 | Ron Darling | Mike Harkey | Ron Darling | Mike Harkey | | 293 | 237 | 56 |
| 1990-06-15 | @ PIT | 58 | W 7-5 | 30-28 | 3 | 35,935 | Bob Ojeda | Walt Terrell | Bob Ojeda | Walt Terrell | John Franco | 300 | 242 | 58 |
| 1990-06-16 | @ PIT | 59 | L 6-11 | 30-29 | 4 | 43,653 | Frank Viola | Doug Drabek | Bob Kipper | Frank Viola | | 306 | 253 | 53 |
| 1990-06-17 | @ PIT | 60 | W 4-3 | 31-29 | 3 | 35,652 | Dwight Gooden | Neal Heaton | Dwight Gooden | Neal Heaton | John Franco | 310 | 256 | 54 |
| 1990-06-19 | vs SLN | 61 | W 6-0 | 32-29 | 3 | 27,668 | David Cone | John Tudor | David Cone | John Tudor | | 316 | 256 | 60 |
| 1990-06-20 | vs SLN | 62 | W 6-3 | 33-29 | 3 | 35,237 | Sid Fernandez | Bryn Smith | Sid Fernandez | Bryn Smith | John Franco | 322 | 259 | 63 |
| 1990-06-22 | vs PHI | 63 | W 5-1 | 34-29 | 3 | 43,587 | Frank Viola | Ken Howell | Frank Viola | Ken Howell | | 327 | 260 | 67 |
| 1990-06-23 | vs PHI | 64 | W 3-0 | 35-29 | 3 | 45,661 | Dwight Gooden | Pat Combs | Dwight Gooden | Pat Combs | | 330 | 260 | 70 |
| 1990-06-24 | vs PHI | 65 | W 6-5 | 36-29 | 3 | 47,836 | Bob Ojeda | Marvin Freeman | Jeff Innis | Roger McDowell | | 336 | 265 | 71 |
| 1990-06-25 | @ SLN | 66 | W 3-2 | 37-29 | 3 | 33,598 | David Cone | John Tudor | David Cone | Lee Smith | John Franco | 339 | 267 | 72 |
| 1990-06-26 | @ SLN | 67 | W 8-6 | 38-29 | 3 | 32,220 | Ron Darling | Bryn Smith | Alejandro Pena | Ken Dayley | | 347 | 273 | 74 |
| 1990-06-27 | @ SLN | 68 | W 5-2 | 39-29 | 3 | 31,705 | Frank Viola | Joe Magrane | Frank Viola | Joe Magrane | | 352 | 275 | 77 |
| 1990-06-28 | vs CIN | 69 | W 5-4 | 40-29 | 2 | 43,647 | Dwight Gooden | Jose Rijo | Dwight Gooden | Jose Rijo | John Franco | 357 | 279 | 78 |
| 1990-06-29 | vs CIN | 70 | W 4-2 | 41-29 | 1 | 43,555 | Bob Ojeda | Rick Mahler | Bob Ojeda | Rick Mahler | Jeff Innis | 361 | 281 | 80 |
| 1990-06-30 | vs CIN | 71 | L 4-7 | 41-30 | 2 | 49,128 | David Cone | Jack Armstrong | Norm Charlton | Jeff Musselman | Randy Myers | 365 | 288 | 77 |
| 1990-07-01 | vs CIN | 72 | W 3-2 | 42-30 | 2 | 42,907 | Ron Darling | Danny Jackson | John Franco | Norm Charlton | | 368 | 290 | 78 |
| 1990-07-03 | vs HOU | 73 | W 12-0 | 43-30 | 2 | 39,938 | Frank Viola | Mark Portugal | Frank Viola | Mark Portugal | | 380 | 290 | 90 |
| 1990-07-04 | vs HOU | 74 | W 7-4 | 44-30 | 2 | 48,072 | Dwight Gooden | Bill Gullickson | Dwight Gooden | Juan Agosto | John Franco | 387 | 294 | 93 |
| 1990-07-05 | @ ATL | 75 | W 9-8 | 45-30 | 2 | 34,312 | Bob Ojeda | Charlie Leibrandt | Wally Whitehurst | Joe Hesketh | John Franco | 396 | 302 | 94 |
| 1990-07-06 | @ ATL | 76 | W 10-7 | 46-30 | 2 | 26,513 | David Cone | Steve Avery | David Cone | Steve Avery | | 406 | 309 | 97 |
| 1990-07-07 | @ ATL | 77 | L 3-4 | 46-31 | 2 | 38,267 | Sid Fernandez | John Smoltz | Kent Mercker | Jeff Innis | | 409 | 313 | 96 |
| 1990-07-08 | @ ATL | 78 | W 2-1 | 47-31 | 2 | 15,866 | Frank Viola | Marty Clary | Frank Viola | Marty Clary | John Franco | 411 | 314 | 97 |
| 1990-07-12 | @ CIN | 79 | W 10-3 | 48-32 | 2 | 0 | Dwight Gooden | Rick Mahler | Dwight Gooden | Norm Charlton | | 421 | 317 | 104 |
| 1990-07-12 | @ CIN | 80 | L 2-3 | 48-32 | 2 | 37,540 | Ron Darling | Danny Jackson | Danny Jackson | Ron Darling | Randy Myers | 423 | 320 | 103 |
| 1990-07-13 | @ CIN | 81 | L 2-4 | 48-33 | 2 | 35,336 | Frank Viola | Tom Browning | Tom Browning | Frank Viola | Randy Myers | 425 | 324 | 101 |
| 1990-07-14 | @ CIN | 82 | W 6-3 | 49-33 | 2 | 48,494 | David Cone | Jack Armstrong | David Cone | Jack Armstrong | John Franco | 431 | 327 | 104 |
| 1990-07-15 | @ CIN | 83 | L 1-2 | 49-34 | 2 | 40,533 | Sid Fernandez | Norm Charlton | Norm Charlton | Sid Fernandez | Randy Myers | 432 | 329 | 103 |
| 1990-07-16 | @ HOU | 84 | L 1-4 | 49-35 | 2 | 16,942 | Bob Ojeda | Mark Portugal | Mark Portugal | Bob Ojeda | Larry Andersen | 433 | 333 | 100 |
| 1990-07-17 | @ HOU | 85 | W 6-2 | 50-35 | 2 | 18,981 | Dwight Gooden | Bill Gullickson | Dwight Gooden | Bill Gullickson | John Franco | 439 | 335 | 104 |
| 1990-07-18 | @ HOU | 86 | L 0-1 | 50-36 | 2 | 18,891 | Frank Viola | Mike Scott | Mike Scott | Alejandro Pena | | 439 | 336 | 103 |
| 1990-07-19 | vs ATL | 87 | W 6-2 | 51-36 | 2 | 39,678 | David Cone | Charlie Leibrandt | David Cone | Charlie Leibrandt | John Franco | 445 | 338 | 107 |
| 1990-07-20 | vs ATL | 88 | W 6-1 | 52-36 | 2 | 36,096 | Sid Fernandez | Steve Avery | Sid Fernandez | Steve Avery | Alejandro Pena | 451 | 339 | 112 |
| 1990-07-21 | vs ATL | 89 | W 4-2 | 53-36 | 2 | 37,779 | Ron Darling | Marty Clary | Ron Darling | Marty Clary | John Franco | 455 | 341 | 114 |
| 1990-07-22 | vs ATL | 90 | L 2-3 | 53-37 | 2 | 48,050 | Dwight Gooden | Tom Glavine | Kent Mercker | Jeff Innis | | 457 | 344 | 113 |
| 1990-07-23 | @ PHI | 91 | L 4-7 | 53-38 | 2 | 39,260 | Frank Viola | Bruce Ruffin | Darrel Akerfelds | Frank Viola | Roger McDowell | 461 | 351 | 110 |
| 1990-07-24 | @ PHI | 92 | W 7-4 | 54-38 | 2 | 43,235 | David Cone | Pat Combs | Julio Machado | Roger McDowell | John Franco | 468 | 355 | 113 |
| 1990-07-25 | @ PHI | 93 | W 10-9 | 55-38 | 2 | 40,079 | Sid Fernandez | Jeff Parrett | Sid Fernandez | Jeff Parrett | John Franco | 478 | 364 | 114 |
| 1990-07-26 | vs SLN | 94 | W 6-1 | 56-39 | 1 | 0 | Ron Darling | Bob Tewksbury | Ron Darling | Bob Tewksbury | | 484 | 365 | 119 |
| 1990-07-26 | vs SLN | 95 | L 1-3 | 56-39 | 1 | 45,936 | Bob Ojeda | Ken Hill | Ken Hill | Bob Ojeda | Lee Smith | 485 | 368 | 117 |
| 1990-07-27 | vs SLN | 96 | W 10-1 | 57-39 | 1 | 43,184 | Frank Viola | Bryn Smith | Frank Viola | Bryn Smith | | 495 | 369 | 126 |
| 1990-07-28 | vs SLN | 97 | L 0-1 | 57-40 | 1 | 45,870 | David Cone | Joe Magrane | Joe Magrane | David Cone | Lee Smith | 495 | 370 | 125 |
| 1990-07-29 | vs SLN | 98 | W 6-0 | 58-40 | 1 | 41,946 | Dwight Gooden | Jose DeLeon | Dwight Gooden | Jose DeLeon | | 501 | 370 | 131 |
| 1990-07-31 | @ MON | 99 | L 4-7 | 58-41 | 1 | 24,386 | Sid Fernandez | Oil Can Boyd | Oil Can Boyd | Sid Fernandez | Tim Burke | 505 | 377 | 128 |
| 1990-08-01 | @ MON | 100 | W 6-4 | 59-41 | 1 | 28,556 | Ron Darling | Zane Smith | Bob Ojeda | Bill Sampen | | 511 | 381 | 130 |
| 1990-08-02 | @ MON | 101 | W 5-1 | 60-41 | 1 | 32,507 | Frank Viola | Dennis Martinez | Frank Viola | Dennis Martinez | | 516 | 382 | 134 |
| 1990-08-03 | @ SLN | 102 | W 5-4 | 61-41 | 1 | 38,087 | David Cone | Jose DeLeon | Julio Machado | Lee Smith | John Franco | 521 | 386 | 135 |
| 1990-08-04 | @ SLN | 103 | L 5-7 | 61-42 | 1 | 41,874 | Dwight Gooden | Ken Hill | Ken Hill | Dwight Gooden | Frank DiPino | 526 | 393 | 133 |
| 1990-08-05 | @ SLN | 104 | L 3-8 | 61-43 | 1 | 35,997 | Sid Fernandez | John Tudor | John Tudor | Sid Fernandez | | 529 | 401 | 128 |
| 1990-08-06 | @ SLN | 105 | L 1-5 | 61-44 | 2 | 37,130 | Ron Darling | Joe Magrane | Joe Magrane | Ron Darling | Lee Smith | 530 | 406 | 124 |
| 1990-08-07 | vs PHI | 106 | L 0-9 | 61-45 | 2 | 33,120 | Frank Viola | Jose De Jesus | Jose De Jesus | Frank Viola | | 530 | 415 | 115 |
| 1990-08-08 | vs PHI | 107 | W 8-4 | 62-45 | 2 | 41,204 | David Cone | Don Carman | David Cone | Don Carman | | 538 | 419 | 119 |
| 1990-08-09 | vs PHI | 108 | W 5-4 | 63-45 | 2 | 39,240 | Dwight Gooden | Pat Combs | Bob Ojeda | Darrel Akerfelds | John Franco | 543 | 423 | 120 |
| 1990-08-10 | vs CHN | 109 | W 5-1 | 64-45 | 1 | 34,090 | Sid Fernandez | Greg Maddux | Sid Fernandez | Greg Maddux | | 548 | 424 | 124 |
| 1990-08-11 | vs CHN | 110 | L 3-6 | 64-46 | 1 | 45,710 | Ron Darling | Mike Bielecki | Steve Wilson | Ron Darling | Paul Assenmacher | 551 | 430 | 121 |
| 1990-08-12 | vs CHN | 111 | L 2-10 | 64-47 | 1 | 46,538 | Frank Viola | Mike Harkey | Mike Harkey | Frank Viola | | 553 | 440 | 113 |
| 1990-08-14 | vs LAN | 112 | W 9-8 | 65-48 | 2 | 0 | Dwight Gooden | Ramon Martinez | Dwight Gooden | Ramon Martinez | John Franco | 562 | 448 | 114 |
| 1990-08-14 | vs LAN | 113 | L 1-2 | 65-48 | 2 | 46,004 | David Cone | Mike Hartley | Mike Hartley | David Cone | Jay Howell | 563 | 450 | 113 |
| 1990-08-15 | vs LAN | 114 | L 2-3 | 65-49 | 2 | 43,139 | Sid Fernandez | Mike Morgan | Mike Morgan | Sid Fernandez | Jay Howell | 565 | 453 | 112 |
| 1990-08-16 | vs LAN | 115 | W 4-1 | 66-49 | 2 | 41,715 | Ron Darling | Tim Belcher | Ron Darling | Tim Belcher | John Franco | 569 | 454 | 115 |
| 1990-08-17 | @ SFN | 116 | L 2-3 | 66-50 | 2 | 28,099 | Frank Viola | Scott Garrelts | Scott Garrelts | Frank Viola | Steve Bedrosian | 571 | 457 | 114 |
| 1990-08-18 | @ SFN | 117 | W 9-2 | 67-50 | 2 | 39,061 | David Cone | Trevor Wilson | David Cone | Trevor Wilson | | 580 | 459 | 121 |
| 1990-08-19 | @ SFN | 118 | W 10-9 | 68-50 | 2 | 33,251 | Dwight Gooden | Mike LaCoss | Dwight Gooden | Mike LaCoss | John Franco | 590 | 468 | 122 |
| 1990-08-20 | @ SDN | 119 | L 1-3 | 68-51 | 2 | 22,497 | Sid Fernandez | Bruce Hurst | Bruce Hurst | Sid Fernandez | Craig Lefferts | 591 | 471 | 120 |
| 1990-08-21 | @ SDN | 120 | L 0-7 | 68-52 | 2 | 23,006 | Ron Darling | Ed Whitson | Ed Whitson | Ron Darling | | 591 | 478 | 113 |
| 1990-08-22 | @ SDN | 121 | W 4-1 | 69-52 | 2 | 18,547 | Frank Viola | Calvin Schiraldi | Frank Viola | Calvin Schiraldi | John Franco | 595 | 479 | 116 |
| 1990-08-23 | @ LAN | 122 | L 2-4 | 69-53 | 2 | 44,997 | David Cone | Fernando Valenzuela | Fernando Valenzuela | David Cone | Jay Howell | 597 | 483 | 114 |
| 1990-08-24 | @ LAN | 123 | W 3-2 | 70-53 | 2 | 48,358 | Dwight Gooden | Ramon Martinez | Dwight Gooden | Jim Gott | John Franco | 600 | 485 | 115 |
| 1990-08-25 | @ LAN | 124 | L 2-3 | 70-54 | 2 | 38,269 | Sid Fernandez | Mike Morgan | Don Aase | Ron Darling | | 602 | 488 | 114 |
| 1990-08-26 | @ LAN | 125 | L 1-2 | 70-55 | 2 | 45,313 | Frank Viola | Mike Hartley | Mike Hartley | Frank Viola | Jay Howell | 603 | 490 | 113 |
| 1990-08-28 | vs SDN | 126 | W 4-0 | 71-55 | 2 | 32,744 | David Cone | Calvin Schiraldi | David Cone | Calvin Schiraldi | | 607 | 490 | 117 |
| 1990-08-29 | vs SDN | 127 | W 2-1 | 72-55 | 2 | 30,020 | Dwight Gooden | Andy Benes | Bob Ojeda | Greg Harris | | 609 | 491 | 118 |
| 1990-08-30 | vs SFN | 128 | W 12-2 | 73-55 | 2 | 38,630 | Sid Fernandez | Mike LaCoss | Sid Fernandez | Mike LaCoss | | 621 | 493 | 128 |
| 1990-08-31 | vs SFN | 129 | W 4-3 | 74-55 | 2 | 41,239 | Frank Viola | Don Robinson | Frank Viola | Steve Bedrosian | | 625 | 496 | 129 |
| 1990-09-01 | vs SFN | 130 | W 6-5 | 75-55 | 1 | 40,082 | Julio Valera | John Burkett | Julio Valera | John Burkett | John Franco | 631 | 501 | 130 |
| 1990-09-02 | vs SFN | 131 | W 10-6 | 76-55 | 1 | 43,686 | David Cone | Paul McClellan | David Cone | Paul McClellan | Alejandro Pena | 641 | 507 | 134 |
| 1990-09-03 | @ SLN | 132 | W 9-3 | 77-55 | 1 | 27,156 | Dwight Gooden | Bob Tewksbury | Dwight Gooden | Bob Tewksbury | | 650 | 510 | 140 |
| 1990-09-04 | @ SLN | 133 | L 0-1 | 77-56 | 2 | 19,873 | Sid Fernandez | Joe Magrane | Joe Magrane | Sid Fernandez | Lee Smith | 650 | 511 | 139 |
| 1990-09-05 | @ PIT | 134 | L 0-1 | 77-58 | 2 | 0 | Frank Viola | Zane Smith | Zane Smith | John Franco | | 650 | 512 | 138 |
| 1990-09-05 | @ PIT | 135 | L 1-3 | 77-58 | 2 | 49,793 | Bob Ojeda | Neal Heaton | Neal Heaton | Bob Ojeda | Ted Power | 651 | 515 | 136 |
| 1990-09-06 | @ PIT | 136 | L 1-7 | 77-59 | 2 | 32,528 | Julio Valera | Randy Tomlin | Randy Tomlin | Julio Valera | | 652 | 522 | 130 |
| 1990-09-07 | @ PHI | 137 | L 1-4 | 77-60 | 2 | 29,744 | David Cone | Jose De Jesus | Jose De Jesus | David Cone | | 653 | 526 | 127 |
| 1990-09-08 | @ PHI | 138 | W 12-2 | 78-60 | 2 | 37,489 | Dwight Gooden | Bruce Ruffin | Dwight Gooden | Bruce Ruffin | | 665 | 528 | 137 |
| 1990-09-09 | @ PHI | 139 | L 2-6 | 78-61 | 2 | 36,502 | Sid Fernandez | Pat Combs | Pat Combs | Sid Fernandez | Joe Boever | 667 | 534 | 133 |
| 1990-09-10 | vs SLN | 140 | W 10-1 | 79-61 | 2 | 26,577 | Frank Viola | Jose DeLeon | Frank Viola | Jose DeLeon | | 677 | 535 | 142 |
| 1990-09-11 | vs SLN | 141 | W 10-8 | 80-61 | 2 | 25,126 | Julio Valera | Ken Hill | John Franco | Lee Smith | | 687 | 543 | 144 |
| 1990-09-12 | vs PIT | 142 | W 2-1 | 81-61 | 2 | 48,375 | David Cone | John Smiley | David Cone | John Smiley | | 689 | 544 | 145 |
| 1990-09-13 | vs PIT | 143 | W 6-3 | 82-61 | 2 | 51,079 | Dwight Gooden | Doug Drabek | Dwight Gooden | Doug Drabek | John Franco | 695 | 547 | 148 |
| 1990-09-14 | vs PHI | 144 | L 1-4 | 82-62 | 2 | 36,339 | Sid Fernandez | Pat Combs | Pat Combs | Sid Fernandez | | 696 | 551 | 145 |
| 1990-09-15 | vs PHI | 145 | W 4-2 | 83-62 | 2 | 45,202 | Frank Viola | Terry Mulholland | Frank Viola | Terry Mulholland | John Franco | 700 | 553 | 147 |
| 1990-09-16 | vs PHI | 146 | L 3-8 | 83-63 | 2 | 44,813 | David Cone | Jose De Jesus | Jose De Jesus | David Cone | | 703 | 561 | 142 |
| 1990-09-18 | vs MON | 147 | L 3-4 | 83-64 | 2 | 29,435 | Dwight Gooden | Oil Can Boyd | Tim Burke | John Franco | | 706 | 565 | 141 |
| 1990-09-20 | vs MON | 148 | L 4-6 | 83-66 | 2 | 0 | Frank Viola | Brian Barnes | Mel Rojas | Frank Viola | Tim Burke | 710 | 571 | 139 |
| 1990-09-20 | vs MON | 149 | L 0-2 | 83-66 | 2 | 33,711 | Sid Fernandez | Chris Nabholz | Chris Nabholz | Sid Fernandez | | 710 | 573 | 137 |
| 1990-09-21 | @ CHN | 150 | L 3-4 | 83-67 | 2 | 19,291 | David Cone | Steve Wilson | Paul Assenmacher | David Cone | | 713 | 577 | 136 |
| 1990-09-22 | @ CHN | 151 | W 11-5 | 84-67 | 2 | 31,066 | Ron Darling | Jose Nunez | Ron Darling | Jose Nunez | | 724 | 582 | 142 |
| 1990-09-23 | @ CHN | 152 | W 7-3 | 85-67 | 2 | 24,385 | Dwight Gooden | Greg Maddux | Dwight Gooden | Greg Maddux | | 731 | 585 | 146 |
| 1990-09-24 | @ CHN | 153 | L 3-4 | 85-68 | 2 | 12,489 | Frank Viola | Les Lancaster | Paul Assenmacher | Frank Viola | | 734 | 589 | 145 |
| 1990-09-25 | @ MON | 154 | W 3-1 | 86-68 | 2 | 11,959 | Sid Fernandez | Chris Nabholz | Alejandro Pena | Chris Nabholz | | 737 | 590 | 147 |
| 1990-09-26 | @ MON | 155 | W 4-0 | 87-68 | 2 | 10,116 | David Cone | Dennis Martinez | David Cone | Dennis Martinez | | 741 | 590 | 151 |
| 1990-09-27 | @ MON | 156 | W 6-0 | 88-68 | 2 | 10,123 | Ron Darling | Kevin Gross | Ron Darling | Kevin Gross | | 747 | 590 | 157 |
| 1990-09-28 | vs CHN | 157 | W 7-1 | 89-68 | 2 | 37,586 | Dwight Gooden | Greg Maddux | Dwight Gooden | Greg Maddux | | 754 | 591 | 163 |
| 1990-09-29 | vs CHN | 158 | L 2-3 | 89-69 | 2 | 38,664 | Frank Viola | Les Lancaster | Les Lancaster | Frank Viola | Paul Assenmacher | 756 | 594 | 162 |
| 1990-09-30 | vs CHN | 159 | L 5-6 | 89-70 | 2 | 39,195 | Sid Fernandez | Steve Wilson | Jose Nunez | John Franco | Mitch Williams | 761 | 600 | 161 |
| 1990-10-01 | @ PIT | 160 | W 4-1 | 90-70 | 2 | 50,393 | David Cone | Zane Smith | David Cone | Zane Smith | | 765 | 601 | 164 |
| 1990-10-02 | @ PIT | 161 | L 4-9 | 90-71 | 2 | 50,028 | Dwight Gooden | Randy Tomlin | Bill Landrum | Dwight Gooden | | 769 | 610 | 159 |
| 1990-10-03 | @ PIT | 162 | W 6-3 | 91-71 | 2 | 27,641 | Frank Viola | Jerry Reuss | Frank Viola | Mike York | Alejandro Pena | 775 | 613 | 162 |