| 1970-04-06 | @ CIN | 1 | L 1-5 | 0-1 | 2 | 30,124 | Joe Sparma | Jim Merritt | Jim Merritt | Joe Sparma | | 1 | 5 | -4 |
| 1970-04-08 | vs SLN | 2 | L 2-7 | 0-2 | 5 | 21,173 | Bill Stoneman | Bob Gibson | Bob Gibson | Bill Stoneman | Chuck Taylor | 3 | 12 | -9 |
| 1970-04-09 | vs SLN | 3 | L 3-7 | 0-3 | 6 | 5,688 | Steve Renko | Mike Torrez | Mike Torrez | Steve Renko | Tom Hilgendorf | 6 | 19 | -13 |
| 1970-04-10 | vs CHN | 4 | L 1-2 | 0-4 | 6 | 4,794 | Joe Sparma | Bill Hands | Hank Aguirre | Joe Sparma | Ted Abernathy | 7 | 21 | -14 |
| 1970-04-12 | vs CHN | 5 | W 2-0 | 1-4 | 6 | 22,102 | Bill Stoneman | Fergie Jenkins | Bill Stoneman | Fergie Jenkins | | 9 | 21 | -12 |
| 1970-04-14 | @ SLN | 6 | L 5-6 | 1-5 | 6 | 9,891 | Steve Renko | Bob Gibson | Sal Campisi | Howie Reed | | 14 | 27 | -13 |
| 1970-04-15 | @ SLN | 7 | L 0-10 | 1-6 | 6 | 8,193 | Joe Sparma | Mike Torrez | Mike Torrez | Joe Sparma | | 14 | 37 | -23 |
| 1970-04-17 | @ CHN | 8 | L 7-8 | 1-7 | 6 | 6,855 | Bill Stoneman | Fergie Jenkins | Phil Regan | Claude Raymond | | 21 | 45 | -24 |
| 1970-04-18 | @ CHN | 9 | L 1-8 | 1-8 | 6 | 21,890 | Steve Renko | Ken Holtzman | Ken Holtzman | Steve Renko | | 22 | 53 | -31 |
| 1970-04-22 | vs LAN | 10 | L 2-9 | 1-9 | 6 | 5,577 | Bill Stoneman | Don Sutton | Don Sutton | Bill Stoneman | | 24 | 62 | -38 |
| 1970-04-24 | @ SFN | 11 | L 3-12 | 1-10 | 6 | 4,600 | Gary Waslewski | Gaylord Perry | Gaylord Perry | Dan McGinn | | 27 | 74 | -47 |
| 1970-04-25 | @ SFN | 12 | W 7-3 | 2-10 | 6 | 27,966 | Joe Sparma | Juan Marichal | Dan McGinn | Ron Bryant | Claude Raymond | 34 | 77 | -43 |
| 1970-04-26 | @ SFN | 13 | L 1-11 | 3-11 | 6 | 0 | Bill Stoneman | Mike McCormick | Mike McCormick | Bill Stoneman | | 35 | 88 | -53 |
| 1970-04-26 | @ SFN | 14 | W 3-2 | 3-11 | 6 | 9,943 | Carl Morton | Rich Robertson | Carl Morton | Rich Robertson | Claude Raymond | 38 | 90 | -52 |
| 1970-04-28 | @ SDN | 15 | W 4-2 | 5-11 | 6 | 0 | Gary Waslewski | Mike Corkins | Howie Reed | Mike Corkins | Claude Raymond | 42 | 92 | -50 |
| 1970-04-28 | @ SDN | 16 | W 7-3 | 5-11 | 6 | 3,507 | Steve Renko | Danny Coombs | Steve Renko | Danny Coombs | | 49 | 95 | -46 |
| 1970-04-29 | @ SDN | 17 | L 0-10 | 5-12 | 6 | 1,753 | Joe Sparma | Pat Dobson | Pat Dobson | Joe Sparma | | 49 | 105 | -56 |
| 1970-04-30 | @ LAN | 18 | L 1-2 | 5-13 | 6 | 10,396 | Bill Stoneman | Sandy Vance | Sandy Vance | Bill Stoneman | | 50 | 107 | -57 |
| 1970-05-01 | @ LAN | 19 | W 3-1 | 6-13 | 6 | 32,929 | Carl Morton | Don Sutton | Carl Morton | Don Sutton | | 53 | 108 | -55 |
| 1970-05-02 | @ LAN | 20 | L 3-7 | 6-14 | 6 | 16,552 | Gary Waslewski | Alan Foster | Joe Moeller | Gary Waslewski | | 56 | 115 | -59 |
| 1970-05-03 | @ LAN | 21 | L 1-15 | 6-15 | 6 | 16,111 | Steve Renko | Claude Osteen | Claude Osteen | Steve Renko | Jose Pena | 57 | 130 | -73 |
| 1970-05-05 | vs SFN | 22 | L 1-4 | 6-16 | 6 | 9,513 | Bill Stoneman | Rich Robertson | Rich Robertson | Bill Stoneman | | 58 | 134 | -76 |
| 1970-05-07 | vs SFN | 23 | W 15-8 | 7-16 | 6 | 6,505 | Carl Morton | Gaylord Perry | Carl Morton | Gaylord Perry | Claude Raymond | 73 | 142 | -69 |
| 1970-05-08 | vs SDN | 24 | L 1-11 | 8-17 | 6 | 0 | Gary Waslewski | Mike Corkins | Mike Corkins | Gary Waslewski | | 74 | 153 | -79 |
| 1970-05-08 | vs SDN | 25 | W 7-6 | 8-17 | 6 | 22,702 | Steve Renko | Al Santorini | Claude Raymond | Gary Ross | | 81 | 159 | -78 |
| 1970-05-09 | vs SDN | 26 | L 0-6 | 8-18 | 6 | 21,031 | Bill Stoneman | Danny Coombs | Danny Coombs | Bill Stoneman | | 81 | 165 | -84 |
| 1970-05-10 | vs SDN | 27 | L 4-5 | 8-19 | 6 | 13,429 | Joe Sparma | Clay Kirby | Clay Kirby | Howie Reed | Dave Roberts | 85 | 170 | -85 |
| 1970-05-11 | @ NYN | 28 | W 3-0 | 9-19 | 6 | 15,016 | Dan McGinn | Tom Seaver | Dan McGinn | Tom Seaver | | 88 | 170 | -82 |
| 1970-05-12 | @ NYN | 29 | L 4-8 | 9-20 | 6 | 8,521 | Carl Morton | Ray Sadecki | Ray Sadecki | Carl Morton | Tug McGraw | 92 | 178 | -86 |
| 1970-05-13 | @ PHI | 30 | W 7-6 | 10-20 | 6 | 2,470 | Bill Stoneman | Rick Wise | Claude Raymond | Rick Wise | | 99 | 184 | -85 |
| 1970-05-15 | @ PIT | 31 | W 2-1 | 11-20 | 6 | 7,883 | Dan McGinn | Bob Veale | Dan McGinn | Bob Veale | | 101 | 185 | -84 |
| 1970-05-16 | @ PIT | 32 | L 3-4 | 11-21 | 6 | 4,237 | Carl Morton | Steve Blass | Luke Walker | Claude Raymond | | 104 | 189 | -85 |
| 1970-05-17 | @ PIT | 33 | W 8-7 | 12-21 | 6 | 8,604 | Steve Renko | Dave Giusti | John Strohmayer | Gene Garber | Claude Raymond | 112 | 196 | -84 |
| 1970-05-18 | vs NYN | 34 | W 8-4 | 13-21 | 5 | 31,004 | Bill Stoneman | Gary Gentry | Claude Raymond | Tug McGraw | | 120 | 200 | -80 |
| 1970-05-19 | vs NYN | 35 | L 4-7 | 13-22 | 6 | 20,324 | Dan McGinn | Ray Sadecki | Ray Sadecki | Dan McGinn | Tug McGraw | 124 | 207 | -83 |
| 1970-05-20 | vs NYN | 36 | W 2-0 | 14-22 | 5 | 11,361 | Carl Morton | Tom Seaver | Carl Morton | Tom Seaver | | 126 | 207 | -81 |
| 1970-05-21 | vs PIT | 37 | W 7-6 | 15-22 | 5 | 13,346 | Steve Renko | Steve Blass | Bill Dillman | Luke Walker | | 133 | 213 | -80 |
| 1970-05-22 | vs PIT | 38 | W 6-3 | 16-22 | 5 | 10,576 | Bill Stoneman | Bob Moose | Bill Stoneman | Bob Moose | | 139 | 216 | -77 |
| 1970-05-23 | vs PIT | 39 | L 4-8 | 16-23 | 5 | 28,702 | Dan McGinn | Dock Ellis | Dock Ellis | Dan McGinn | Dave Giusti | 143 | 224 | -81 |
| 1970-05-24 | vs PIT | 40 | L 0-3 | 16-24 | 5 | 29,306 | Carl Morton | Bob Veale | Bob Veale | Carl Morton | | 143 | 227 | -84 |
| 1970-05-26 | vs PHI | 41 | L 2-3 | 17-24 | 5 | 14,010 | Bill Stoneman | Rick Wise | Rick Wise | Bill Stoneman | Dick Selma | 145 | 230 | -85 |
| 1970-05-27 | vs PHI | 42 | L 0-3 | 17-25 | 5 | 6,913 | Dan McGinn | Woodie Fryman | Woodie Fryman | Dan McGinn | | 145 | 233 | -88 |
| 1970-05-28 | vs PHI | 43 | L 3-5 | 17-26 | 6 | 14,329 | Carl Morton | Grant Jackson | Joe Hoerner | Bill Dillman | Dick Selma | 148 | 238 | -90 |
| 1970-05-29 | @ CIN | 44 | L 4-6 | 17-27 | 6 | 13,559 | Mike Wegener | Gary Nolan | Clay Carroll | Claude Raymond | | 152 | 244 | -92 |
| 1970-05-30 | @ CIN | 45 | L 4-5 | 17-28 | 6 | 23,839 | Bill Stoneman | Jim McGlothlin | Wayne Granger | Bill Dillman | | 156 | 249 | -93 |
| 1970-05-31 | @ CIN | 46 | L 4-6 | 17-29 | 6 | 10,279 | Dan McGinn | Jim Merritt | Jim Merritt | Howie Reed | Wayne Granger | 160 | 255 | -95 |
| 1970-06-02 | @ HOU | 47 | L 4-6 | 17-30 | 6 | 12,756 | Carl Morton | Ron Cook | Jim Ray | Carl Morton | Fred Gladding | 164 | 261 | -97 |
| 1970-06-03 | @ HOU | 48 | L 0-5 | 17-31 | 6 | 12,665 | Balor Moore | Jack Billingham | Jack Billingham | Balor Moore | | 164 | 266 | -102 |
| 1970-06-04 | @ HOU | 49 | L 0-8 | 17-32 | 6 | 10,189 | Dan McGinn | Tom Griffin | Tom Griffin | Dan McGinn | | 164 | 274 | -110 |
| 1970-06-05 | @ ATL | 50 | W 3-2 | 18-32 | 6 | 11,742 | Mike Wegener | George Stone | Bill Dillman | Hoyt Wilhelm | Claude Raymond | 167 | 276 | -109 |
| 1970-06-06 | @ ATL | 51 | W 12-4 | 19-32 | 6 | 14,981 | Bill Stoneman | Jim Nash | Bill Stoneman | Jim Nash | Claude Raymond | 179 | 280 | -101 |
| 1970-06-07 | @ ATL | 52 | W 10-1 | 20-32 | 6 | 30,801 | Carl Morton | Phil Niekro | Carl Morton | Phil Niekro | | 189 | 281 | -92 |
| 1970-06-09 | vs CIN | 53 | L 4-6 | 20-33 | 6 | 23,042 | Balor Moore | Gary Nolan | Gary Nolan | Balor Moore | Wayne Granger | 193 | 287 | -94 |
| 1970-06-10 | vs CIN | 54 | L 0-7 | 20-34 | 6 | 13,113 | Mike Wegener | Jim McGlothlin | Jim McGlothlin | Mike Wegener | | 193 | 294 | -101 |
| 1970-06-11 | vs CIN | 55 | W 8-4 | 21-34 | 6 | 18,317 | Carl Morton | Jim Merritt | Carl Morton | Jim Merritt | Claude Raymond | 201 | 298 | -97 |
| 1970-06-12 | vs HOU | 56 | W 7-6 | 22-34 | 6 | 14,820 | Dan McGinn | Ron Cook | Howie Reed | Mike Marshall | Claude Raymond | 208 | 304 | -96 |
| 1970-06-13 | vs HOU | 57 | L 2-5 | 22-35 | 6 | 22,042 | Bill Stoneman | Jack Billingham | Jack Billingham | Bill Stoneman | | 210 | 309 | -99 |
| 1970-06-14 | vs HOU | 58 | W 2-1 | 23-35 | 6 | 20,547 | Steve Renko | Denny Lemaster | Steve Renko | Denny Lemaster | Claude Raymond | 212 | 310 | -98 |
| 1970-06-16 | vs ATL | 59 | L 5-7 | 23-36 | 6 | 19,027 | Carl Morton | George Stone | Milt Pappas | Carl Morton | Mike McQueen | 217 | 317 | -100 |
| 1970-06-17 | vs ATL | 60 | L 5-6 | 23-37 | 6 | 10,694 | Mike Wegener | Jim Nash | Larry Jaster | Claude Raymond | Bob Priddy | 222 | 323 | -101 |
| 1970-06-18 | vs ATL | 61 | W 10-7 | 24-37 | 6 | 14,214 | Steve Renko | Phil Niekro | Bill Stoneman | Larry Jaster | Howie Reed | 232 | 330 | -98 |
| 1970-06-19 | @ PIT | 62 | L 4-8 | 24-38 | 6 | 9,707 | Dan McGinn | Bob Moose | Bruce Dal Canton | Bill Dillman | Luke Walker | 236 | 338 | -102 |
| 1970-06-20 | @ PIT | 63 | L 2-4 | 24-39 | 6 | 5,148 | Carl Morton | Steve Blass | Steve Blass | Carl Morton | Dave Giusti | 238 | 342 | -104 |
| 1970-06-21 | @ PIT | 64 | W 3-2 | 25-39 | 6 | 12,325 | Rich Nye | Bob Veale | Rich Nye | Bob Veale | | 241 | 344 | -103 |
| 1970-06-22 | @ PHI | 65 | L 0-6 | 25-41 | 6 | 0 | Bill Stoneman | Woodie Fryman | Woodie Fryman | Bill Stoneman | | 241 | 350 | -109 |
| 1970-06-22 | @ PHI | 66 | L 2-3 | 25-41 | 6 | 20,535 | Steve Renko | Rick Wise | Rick Wise | Steve Renko | | 243 | 353 | -110 |
| 1970-06-23 | @ PHI | 67 | W 2-1 | 26-41 | 6 | 8,221 | Dan McGinn | Jim Bunning | Dan McGinn | Jim Bunning | Claude Raymond | 245 | 354 | -109 |
| 1970-06-24 | @ PHI | 68 | W 8-0 | 27-41 | 6 | 6,869 | Carl Morton | Chris Short | Carl Morton | Chris Short | | 253 | 354 | -101 |
| 1970-06-25 | @ PHI | 69 | L 2-3 | 27-42 | 6 | 5,065 | Rich Nye | Grant Jackson | Joe Hoerner | Claude Raymond | | 255 | 357 | -102 |
| 1970-06-26 | vs NYN | 70 | W 6-5 | 28-42 | 6 | 21,012 | Steve Renko | Jim McAndrew | Steve Renko | Jim McAndrew | Claude Raymond | 261 | 362 | -101 |
| 1970-06-27 | vs NYN | 71 | L 3-8 | 28-43 | 6 | 21,398 | Dan McGinn | Gary Gentry | Gary Gentry | Dan McGinn | | 264 | 370 | -106 |
| 1970-06-28 | vs NYN | 72 | W 3-2 | 29-43 | 6 | 27,154 | Carl Morton | Ray Sadecki | Carl Morton | Ray Sadecki | | 267 | 372 | -105 |
| 1970-06-30 | vs PHI | 73 | W 8-1 | 30-43 | 6 | 20,038 | Steve Renko | Rick Wise | Steve Renko | Rick Wise | | 275 | 373 | -98 |
| 1970-07-01 | vs PHI | 74 | W 11-1 | 32-43 | 5 | 0 | Rich Nye | Woodie Fryman | Rich Nye | Woodie Fryman | | 286 | 374 | -88 |
| 1970-07-01 | vs PHI | 75 | W 4-1 | 32-43 | 5 | 25,623 | Dan McGinn | Grant Jackson | Dan McGinn | Grant Jackson | Howie Reed | 290 | 375 | -85 |
| 1970-07-02 | vs SLN | 76 | W 13-10 | 33-43 | 5 | 17,576 | Carl Morton | Mike Torrez | Carl Morton | Mike Torrez | Claude Raymond | 303 | 385 | -82 |
| 1970-07-03 | vs SLN | 77 | L 7-9 | 33-44 | 5 | 17,262 | Bill Stoneman | Chuck Taylor | Chuck Taylor | Bill Stoneman | Sal Campisi | 310 | 394 | -84 |
| 1970-07-04 | vs SLN | 78 | W 8-0 | 34-44 | 5 | 23,715 | Steve Renko | Steve Carlton | Steve Renko | Steve Carlton | | 318 | 394 | -76 |
| 1970-07-05 | vs SLN | 79 | L 3-6 | 34-45 | 5 | 24,174 | Rich Nye | Bob Gibson | Bob Gibson | Rich Nye | | 321 | 400 | -79 |
| 1970-07-06 | @ CHN | 80 | L 2-3 | 34-47 | 5 | 0 | Carl Morton | Bill Hands | Bill Hands | Carl Morton | Roberto Rodriguez | 323 | 403 | -80 |
| 1970-07-06 | @ CHN | 81 | L 2-14 | 34-47 | 5 | 19,743 | Mike Wegener | Joe Decker | Joe Decker | Mike Wegener | | 325 | 417 | -92 |
| 1970-07-07 | @ CHN | 82 | L 7-10 | 34-48 | 5 | 18,884 | Howie Reed | Larry Gura | Roberto Rodriguez | Howie Reed | Jim Colborn | 332 | 427 | -95 |
| 1970-07-08 | @ CHN | 83 | L 1-5 | 35-49 | 5 | 0 | Steve Renko | Milt Pappas | Milt Pappas | Steve Renko | | 333 | 432 | -99 |
| 1970-07-08 | @ CHN | 84 | W 5-4 | 35-49 | 5 | 33,858 | Bill Stoneman | Ken Holtzman | Dan McGinn | Ken Holtzman | Claude Raymond | 338 | 436 | -98 |
| 1970-07-09 | @ NYN | 85 | L 1-7 | 35-50 | 6 | 26,549 | Rich Nye | Tom Seaver | Tom Seaver | Rich Nye | | 339 | 443 | -104 |
| 1970-07-10 | @ NYN | 86 | W 9-7 | 36-50 | 5 | 29,394 | Carl Morton | Jerry Koosman | Carl Morton | Jerry Koosman | Claude Raymond | 348 | 450 | -102 |
| 1970-07-11 | @ NYN | 87 | W 6-2 | 37-50 | 5 | 53,968 | Mike Wegener | Jim McAndrew | Mike Wegener | Jim McAndrew | Claude Raymond | 354 | 452 | -98 |
| 1970-07-12 | @ NYN | 88 | W 5-3 | 38-50 | 5 | 38,186 | Steve Renko | Ray Sadecki | Howie Reed | Ray Sadecki | Claude Raymond | 359 | 455 | -96 |
| 1970-07-17 | @ SFN | 89 | W 7-3 | 39-50 | 5 | 11,543 | Carl Morton | Juan Marichal | Carl Morton | Juan Marichal | Claude Raymond | 366 | 458 | -92 |
| 1970-07-18 | @ SFN | 90 | L 1-10 | 39-51 | 5 | 28,879 | Mike Wegener | Gaylord Perry | Gaylord Perry | Mike Wegener | | 367 | 468 | -101 |
| 1970-07-19 | @ SDN | 91 | L 5-6 | 40-52 | 6 | 0 | Steve Renko | Danny Coombs | Danny Coombs | Steve Renko | Ron Willis | 372 | 474 | -102 |
| 1970-07-19 | @ SDN | 92 | W 6-5 | 40-52 | 6 | 6,891 | Bill Stoneman | Dave Roberts | John Strohmayer | Dave Roberts | Claude Raymond | 378 | 479 | -101 |
| 1970-07-20 | @ SDN | 93 | L 1-3 | 40-53 | 6 | 2,735 | Mike Marshall | Pat Dobson | Pat Dobson | Mike Marshall | | 379 | 482 | -103 |
| 1970-07-21 | @ LAN | 94 | W 5-2 | 41-53 | 6 | 15,550 | Carl Morton | Don Sutton | Carl Morton | Don Sutton | | 384 | 484 | -100 |
| 1970-07-22 | @ LAN | 95 | L 10-12 | 41-54 | 6 | 15,930 | Dan McGinn | Claude Osteen | Jose Pena | Claude Raymond | Jim Brewer | 394 | 496 | -102 |
| 1970-07-24 | vs SFN | 96 | L 7-8 | 42-55 | 5 | 0 | Steve Renko | Rich Robertson | Mike Davison | Steve Renko | Don McMahon | 401 | 504 | -103 |
| 1970-07-24 | vs SFN | 97 | W 7-5 | 42-55 | 5 | 28,307 | Mike Wegener | Skip Pitlock | Howie Reed | Skip Pitlock | Claude Raymond | 408 | 509 | -101 |
| 1970-07-25 | vs SFN | 98 | W 10-5 | 43-55 | 5 | 25,287 | Carl Morton | Frank Reberger | Carl Morton | Frank Reberger | | 418 | 514 | -96 |
| 1970-07-26 | vs SFN | 99 | L 2-6 | 43-56 | 5 | 18,705 | Mike Marshall | Juan Marichal | Juan Marichal | Mike Marshall | | 420 | 520 | -100 |
| 1970-07-28 | vs SDN | 100 | W 5-4 | 44-56 | 5 | 19,500 | Steve Renko | Earl Wilson | John Strohmayer | Danny Coombs | | 425 | 524 | -99 |
| 1970-07-29 | vs SDN | 101 | W 4-3 | 45-56 | 5 | 11,815 | Carl Morton | Clay Kirby | Carl Morton | Clay Kirby | | 429 | 527 | -98 |
| 1970-07-30 | vs LAN | 102 | L 3-7 | 45-57 | 5 | 23,587 | Dan McGinn | Bill Singer | Bill Singer | Dan McGinn | | 432 | 534 | -102 |
| 1970-07-31 | vs LAN | 103 | L 5-8 | 45-58 | 5 | 23,549 | Mike Marshall | Don Sutton | Don Sutton | Mike Marshall | Jim Brewer | 437 | 542 | -105 |
| 1970-08-01 | vs LAN | 104 | W 11-6 | 47-58 | 5 | 0 | Rich Nye | Alan Foster | Rich Nye | Alan Foster | Claude Raymond | 448 | 548 | -100 |
| 1970-08-01 | vs LAN | 105 | W 6-5 | 47-58 | 5 | 26,107 | Steve Renko | Claude Osteen | Steve Renko | Claude Osteen | | 454 | 553 | -99 |
| 1970-08-02 | vs LAN | 106 | L 3-6 | 47-59 | 6 | 20,763 | Carl Morton | Joe Moeller | Ray Lamb | John Strohmayer | Jim Brewer | 457 | 559 | -102 |
| 1970-08-03 | vs PIT | 107 | W 8-0 | 48-59 | 6 | 18,110 | Dan McGinn | Bob Moose | Dan McGinn | Bob Moose | | 465 | 559 | -94 |
| 1970-08-04 | vs PIT | 108 | L 2-4 | 48-60 | 6 | 27,112 | Mike Marshall | Bob Veale | Bob Veale | Mike Marshall | | 467 | 563 | -96 |
| 1970-08-05 | vs CHN | 109 | W 6-2 | 49-61 | 6 | 0 | Mike Wegener | Milt Pappas | Mike Wegener | Milt Pappas | | 473 | 565 | -92 |
| 1970-08-05 | vs CHN | 110 | L 3-11 | 49-61 | 6 | 26,662 | Steve Renko | Larry Gura | Larry Gura | Steve Renko | | 476 | 576 | -100 |
| 1970-08-06 | vs CHN | 111 | L 2-4 | 49-62 | 6 | 25,622 | Carl Morton | Ken Holtzman | Ken Holtzman | Carl Morton | | 478 | 580 | -102 |
| 1970-08-07 | @ SLN | 112 | L 1-2 | 49-63 | 6 | 18,990 | Dan McGinn | Bob Gibson | Bob Gibson | Dan McGinn | | 479 | 582 | -103 |
| 1970-08-08 | @ SLN | 113 | L 10-11 | 49-64 | 6 | 17,341 | Mike Marshall | Harry Parker | Al Hrabosky | Claude Raymond | | 489 | 593 | -104 |
| 1970-08-09 | @ SLN | 114 | W 7-6 | 50-65 | 6 | 0 | Mike Wegener | Steve Carlton | Mike Wegener | Steve Carlton | Steve Renko | 496 | 599 | -103 |
| 1970-08-09 | @ SLN | 115 | L 0-4 | 50-65 | 6 | 28,479 | Bill Stoneman | Jerry Reuss | Jerry Reuss | Bill Stoneman | | 496 | 603 | -107 |
| 1970-08-11 | @ ATL | 116 | L 0-1 | 50-66 | 6 | 7,269 | Carl Morton | Jim Nash | Jim Nash | Carl Morton | | 496 | 604 | -108 |
| 1970-08-12 | @ ATL | 117 | L 7-8 | 50-67 | 6 | 8,067 | Dan McGinn | Phil Niekro | Bob Priddy | Bill Stoneman | Hoyt Wilhelm | 503 | 612 | -109 |
| 1970-08-13 | @ ATL | 118 | L 1-4 | 50-68 | 6 | 6,199 | Mike Wegener | George Stone | George Stone | Mike Wegener | Hoyt Wilhelm | 504 | 616 | -112 |
| 1970-08-14 | @ HOU | 119 | W 10-2 | 51-68 | 6 | 13,772 | Steve Renko | Ron Cook | Steve Renko | Ron Cook | | 514 | 618 | -104 |
| 1970-08-15 | @ HOU | 120 | L 3-7 | 51-69 | 6 | 14,527 | Carl Morton | Don Wilson | Don Wilson | Carl Morton | Fred Gladding | 517 | 625 | -108 |
| 1970-08-16 | @ HOU | 121 | W 5-3 | 52-69 | 6 | 19,235 | Dan McGinn | Jack Billingham | Claude Raymond | Ron Cook | | 522 | 628 | -106 |
| 1970-08-18 | @ CIN | 122 | W 7-4 | 53-69 | 6 | 22,301 | Steve Renko | Mel Behney | Steve Renko | Mel Behney | Claude Raymond | 529 | 632 | -103 |
| 1970-08-19 | @ CIN | 123 | W 8-6 | 54-69 | 5 | 23,909 | Mike Wegener | Gary Nolan | Mike Marshall | Gary Nolan | Claude Raymond | 537 | 638 | -101 |
| 1970-08-21 | vs ATL | 124 | W 6-4 | 55-69 | 5 | 25,237 | Carl Morton | Phil Niekro | Carl Morton | Phil Niekro | Howie Reed | 543 | 642 | -99 |
| 1970-08-22 | vs ATL | 125 | W 4-1 | 56-69 | 5 | 27,037 | Steve Renko | Jim Nash | Steve Renko | Jim Nash | Howie Reed | 547 | 643 | -96 |
| 1970-08-24 | vs ATL | 126 | L 0-6 | 56-70 | 5 | 16,314 | Bill Stoneman | George Stone | George Stone | Bill Stoneman | | 547 | 649 | -102 |
| 1970-08-25 | vs HOU | 127 | L 3-6 | 56-71 | 6 | 19,897 | Carl Morton | Jack Billingham | Ron Cook | Mike Marshall | Jack DiLauro | 550 | 655 | -105 |
| 1970-08-26 | vs HOU | 128 | L 4-5 | 56-72 | 6 | 11,088 | Steve Renko | Don Wilson | Fred Gladding | Steve Renko | | 554 | 660 | -106 |
| 1970-08-27 | vs HOU | 129 | L 4-5 | 56-73 | 6 | 16,158 | Mike Wegener | Larry Dierker | Larry Dierker | Mike Wegener | | 558 | 665 | -107 |
| 1970-08-28 | vs CIN | 130 | W 4-3 | 57-73 | 6 | 23,310 | Bill Stoneman | Gary Nolan | Claude Raymond | Wayne Granger | | 562 | 668 | -106 |
| 1970-08-29 | vs CIN | 131 | L 3-4 | 57-74 | 6 | 29,095 | Carl Morton | Tony Cloninger | Clay Carroll | Carl Morton | Wayne Granger | 565 | 672 | -107 |
| 1970-08-30 | vs CIN | 132 | W 5-1 | 58-74 | 6 | 27,415 | Steve Renko | Jim Merritt | Steve Renko | Jim Merritt | | 570 | 673 | -103 |
| 1970-09-01 | vs PIT | 133 | L 4-8 | 58-75 | 6 | 20,123 | Bill Stoneman | Bob Veale | Bob Veale | Bill Stoneman | Dave Giusti | 574 | 681 | -107 |
| 1970-09-02 | vs PIT | 134 | W 10-7 | 59-75 | 6 | 15,461 | Carl Morton | Bob Moose | Mike Marshall | Joe Gibbon | | 584 | 688 | -104 |
| 1970-09-04 | @ SLN | 135 | W 9-7 | 60-75 | 6 | 20,970 | Steve Renko | Mike Torrez | Claude Raymond | Reggie Cleveland | | 593 | 695 | -102 |
| 1970-09-05 | @ SLN | 136 | W 6-0 | 61-75 | 6 | 16,143 | Bill Stoneman | Frank Bertaina | Bill Stoneman | Frank Bertaina | | 599 | 695 | -96 |
| 1970-09-06 | @ SLN | 137 | L 2-7 | 61-76 | 6 | 17,215 | John O'Donoghue | Bob Gibson | Bob Gibson | John O'Donoghue | | 601 | 702 | -101 |
| 1970-09-07 | @ NYN | 138 | L 4-5 | 61-78 | 6 | 0 | Carl Morton | Tom Seaver | Danny Frisella | Mike Marshall | | 605 | 707 | -102 |
| 1970-09-07 | @ NYN | 139 | L 1-5 | 61-78 | 6 | 46,163 | Dan McGinn | Jim McAndrew | Jim McAndrew | Dan McGinn | | 606 | 712 | -106 |
| 1970-09-08 | @ NYN | 140 | L 5-10 | 61-79 | 6 | 15,505 | Steve Renko | Gary Gentry | Tug McGraw | Steve Renko | Ron Herbel | 611 | 722 | -111 |
| 1970-09-09 | @ CHN | 141 | W 3-2 | 62-79 | 6 | 10,644 | Bill Stoneman | Ken Holtzman | Mike Marshall | Roberto Rodriguez | | 614 | 724 | -110 |
| 1970-09-10 | @ CHN | 142 | L 3-9 | 62-80 | 6 | 8,624 | John O'Donoghue | Milt Pappas | Milt Pappas | John O'Donoghue | Juan Pizarro | 617 | 733 | -116 |
| 1970-09-11 | vs PHI | 143 | W 1-0 | 63-80 | 6 | 14,637 | Carl Morton | Chris Short | Carl Morton | Chris Short | | 618 | 733 | -115 |
| 1970-09-12 | vs PHI | 144 | W 4-3 | 64-80 | 6 | 25,221 | Steve Renko | Lowell Palmer | Steve Renko | Lowell Palmer | Howie Reed | 622 | 736 | -114 |
| 1970-09-13 | vs PHI | 145 | W 4-2 | 65-80 | 5 | 11,387 | Mike Wegener | Rick Wise | John O'Donoghue | Joe Hoerner | | 626 | 738 | -112 |
| 1970-09-14 | vs NYN | 146 | L 5-9 | 65-81 | 5 | 15,462 | Bill Stoneman | Ray Sadecki | Danny Frisella | Mike Marshall | Nolan Ryan | 631 | 747 | -116 |
| 1970-09-15 | vs NYN | 147 | W 5-4 | 66-81 | 5 | 12,806 | Carl Morton | Jerry Koosman | John O'Donoghue | Jerry Koosman | | 636 | 751 | -115 |
| 1970-09-16 | vs NYN | 148 | W 4-2 | 67-81 | 5 | 12,152 | Steve Renko | Tom Seaver | Steve Renko | Tom Seaver | | 640 | 753 | -113 |
| 1970-09-18 | vs CHN | 149 | L 2-3 | 67-83 | 5 | 0 | Bill Stoneman | Fergie Jenkins | Fergie Jenkins | Bill Stoneman | | 642 | 756 | -114 |
| 1970-09-18 | vs CHN | 150 | L 4-5 | 67-83 | 5 | 27,898 | Mike Wegener | Bob Miller | Phil Regan | John O'Donoghue | Bill Hands | 646 | 761 | -115 |
| 1970-09-19 | vs CHN | 151 | L 4-8 | 67-84 | 6 | 20,051 | Carl Morton | Ken Holtzman | Ken Holtzman | Carl Morton | Phil Regan | 650 | 769 | -119 |
| 1970-09-20 | vs CHN | 152 | W 6-4 | 68-84 | 6 | 22,274 | Steve Renko | Milt Pappas | Howie Reed | Phil Regan | | 656 | 773 | -117 |
| 1970-09-22 | @ PIT | 153 | W 1-0 | 69-85 | 5 | 0 | Bill Stoneman | Dock Ellis | Bill Stoneman | Dock Ellis | | 657 | 773 | -116 |
| 1970-09-22 | @ PIT | 154 | L 1-3 | 69-85 | 5 | 19,524 | Mike Wegener | Bob Veale | Bob Veale | Mike Wegener | Joe Gibbon | 658 | 776 | -118 |
| 1970-09-23 | @ PIT | 155 | W 3-2 | 70-85 | 5 | 12,420 | Carl Morton | George Brunet | Carl Morton | George Brunet | Mike Marshall | 661 | 778 | -117 |
| 1970-09-24 | @ PIT | 156 | L 0-8 | 70-86 | 5 | 14,026 | Steve Renko | Luke Walker | Luke Walker | Steve Renko | | 661 | 786 | -125 |
| 1970-09-25 | vs SLN | 157 | W 7-5 | 71-86 | 5 | 20,998 | John O'Donoghue | Frank Bertaina | Howie Reed | Chuck Taylor | | 668 | 791 | -123 |
| 1970-09-26 | vs SLN | 158 | L 2-7 | 71-87 | 6 | 19,120 | Bill Stoneman | Steve Carlton | Steve Carlton | Dan McGinn | | 670 | 798 | -128 |
| 1970-09-27 | vs SLN | 159 | W 1-0 | 72-87 | 5 | 30,029 | Carl Morton | Harry Parker | Carl Morton | Tom Hilgendorf | | 671 | 798 | -127 |
| 1970-09-29 | @ PHI | 160 | W 10-3 | 73-87 | 5 | 1,055 | Steve Renko | Chris Short | Steve Renko | Chris Short | Mike Marshall | 681 | 801 | -120 |
| 1970-09-30 | @ PHI | 161 | W 5-4 | 74-87 | 5 | 1,186 | Bill Stoneman | Rick Wise | Bill Stoneman | Rick Wise | Mike Marshall | 686 | 805 | -119 |
| 1970-10-01 | @ PHI | 162 | L 1-2 | 74-88 | 5 | 31,822 | Carl Morton | Barry Lersch | Dick Selma | Howie Reed | | 687 | 807 | -120 |