| 2009-04-06 | @ SDN | 1 | W 4-1 | 1-0 | 2 | 45,496 | Hiroki Kuroda | Jake Peavy | Hiroki Kuroda | Jake Peavy | Jonathan Broxton | 4 | 1 | 3 |
| 2009-04-07 | @ SDN | 2 | L 2-4 | 1-1 | 3 | 20,035 | Randy Wolf | Chris Young | Chris Young | Randy Wolf | Heath Bell | 6 | 5 | 1 |
| 2009-04-08 | @ SDN | 3 | W 5-2 | 2-1 | 2 | 31,700 | Chad Billingsley | Walter Silva | Chad Billingsley | Edward Mujica | Jonathan Broxton | 11 | 7 | 4 |
| 2009-04-09 | @ SDN | 4 | L 3-4 | 2-2 | 2 | 29,710 | Clayton Kershaw | Kevin Correia | Cla Meredith | Cory Wade | Heath Bell | 14 | 11 | 3 |
| 2009-04-10 | @ ARI | 5 | L 4-9 | 2-3 | 4 | 31,036 | James McDonald | Jon Garland | Jon Garland | James McDonald | | 18 | 20 | -2 |
| 2009-04-11 | @ ARI | 6 | W 11-2 | 2-4 | 4 | 35,024 | Eric Stults | Yusmeiro Petit | Eric Stults | Yusmeiro Petit | | 29 | 22 | 7 |
| 2009-04-12 | @ ARI | 7 | W 3-1 | 3-4 | 3 | 25,485 | Randy Wolf | Dan Haren | Randy Wolf | Dan Haren | Jonathan Broxton | 32 | 23 | 9 |
| 2009-04-13 | vs SFN | 8 | W 11-1 | 4-4 | 2 | 57,099 | Chad Billingsley | Randy Johnson | Chad Billingsley | Randy Johnson | | 43 | 24 | 19 |
| 2009-04-15 | vs SFN | 9 | W 5-4 | 5-4 | 3 | 42,511 | Clayton Kershaw | Matt Cain | Jonathan Broxton | Bob Howry | | 48 | 28 | 20 |
| 2009-04-16 | vs SFN | 10 | W 7-2 | 6-4 | 2 | 36,553 | Eric Stults | Barry Zito | Eric Stults | Barry Zito | | 55 | 30 | 25 |
| 2009-04-17 | vs COL | 11 | W 4-3 | 7-4 | 2 | 45,145 | Randy Wolf | Jorge de la Rosa | Guillermo Mota | Alan Embree | Jonathan Broxton | 59 | 33 | 26 |
| 2009-04-18 | vs COL | 12 | W 9-5 | 8-4 | 2 | 36,765 | Chad Billingsley | Aaron Cook | Chad Billingsley | Aaron Cook | | 68 | 38 | 30 |
| 2009-04-19 | vs COL | 13 | W 14-2 | 8-5 | 2 | 41,474 | James McDonald | Ubaldo Jimenez | Scott Elbert | Ubaldo Jimenez | | 82 | 40 | 42 |
| 2009-04-21 | @ HOU | 14 | L 5-8 | 8-6 | 2 | 26,360 | Clayton Kershaw | Russ Ortiz | Russ Ortiz | Clayton Kershaw | Jose Valverde | 87 | 48 | 39 |
| 2009-04-22 | @ HOU | 15 | L 5-6 | 8-7 | 3 | 26,725 | Randy Wolf | Roy Oswalt | Chris Sampson | Ronald Belisario | LaTroy Hawkins | 92 | 54 | 38 |
| 2009-04-23 | @ HOU | 16 | W 2-0 | 9-7 | 2 | 26,081 | Chad Billingsley | Wandy Rodriguez | Chad Billingsley | Wandy Rodriguez | Jonathan Broxton | 94 | 54 | 40 |
| 2009-04-24 | @ COL | 17 | W 6-5 | 10-7 | 2 | 36,151 | Eric Stults | Aaron Cook | Hong-Chih Kuo | Manuel Corpas | Jonathan Broxton | 100 | 59 | 41 |
| 2009-04-25 | @ COL | 18 | W 6-5 | 11-7 | 1 | 31,476 | James McDonald | Ubaldo Jimenez | James McDonald | Ubaldo Jimenez | Ramon Troncoso | 106 | 64 | 42 |
| 2009-04-26 | @ COL | 19 | L 4-10 | 12-7 | 1 | 35,505 | Clayton Kershaw | Jason Marquis | Jason Marquis | Clayton Kershaw | | 110 | 74 | 36 |
| 2009-04-27 | @ SFN | 20 | L 4-5 | 12-8 | 1 | 30,091 | Randy Wolf | Barry Zito | Merkin Valdez | Ronald Belisario | Brian Wilson | 114 | 79 | 35 |
| 2009-04-28 | @ SFN | 21 | W 5-3 | 13-8 | 1 | 30,482 | Chad Billingsley | Jonathan Sanchez | Jonathan Broxton | Bob Howry | Will Ohman | 119 | 82 | 37 |
| 2009-04-29 | @ SFN | 22 | L 4-9 | 13-9 | 1 | 37,717 | Eric Stults | Tim Lincecum | Tim Lincecum | Eric Stults | Brian Wilson | 123 | 91 | 32 |
| 2009-04-30 | vs SDN | 23 | W 8-5 | 14-9 | 1 | 54,628 | James McDonald | Josh Geer | Ronald Belisario | Luke Gregerson | Jonathan Broxton | 131 | 96 | 35 |
| 2009-05-01 | vs SDN | 24 | W 1-0 | 15-9 | 1 | 47,210 | Clayton Kershaw | Jake Peavy | Jonathan Broxton | Duaner Sanchez | | 132 | 96 | 36 |
| 2009-05-02 | vs SDN | 25 | W 2-1 | 16-9 | 1 | 47,680 | Randy Wolf | Chris Young | Guillermo Mota | Luke Gregerson | | 134 | 97 | 37 |
| 2009-05-03 | vs SDN | 26 | W 7-3 | 17-9 | 1 | 52,096 | Chad Billingsley | Chad Gaudin | Chad Billingsley | Chad Gaudin | | 141 | 100 | 41 |
| 2009-05-04 | vs ARI | 27 | W 7-2 | 18-9 | 1 | 30,530 | Eric Stults | Doug Davis | Eric Stults | Doug Davis | | 148 | 102 | 46 |
| 2009-05-05 | vs ARI | 28 | W 3-1 | 19-9 | 1 | 33,557 | Jeff Weaver | Max Scherzer | Jeff Weaver | Max Scherzer | Jonathan Broxton | 151 | 103 | 48 |
| 2009-05-06 | vs WAS | 29 | W 10-3 | 19-10 | 1 | 31,348 | Clayton Kershaw | Daniel Cabrera | Clayton Kershaw | Daniel Cabrera | | 161 | 106 | 55 |
| 2009-05-07 | vs WAS | 30 | L 9-11 | 20-10 | 1 | 37,074 | Randy Wolf | Jordan Zimmermann | Ron Villone | Cory Wade | | 170 | 117 | 53 |
| 2009-05-08 | vs SFN | 31 | L 1-3 | 20-11 | 1 | 51,209 | Chad Billingsley | Barry Zito | Barry Zito | Chad Billingsley | Brian Wilson | 171 | 120 | 51 |
| 2009-05-09 | vs SFN | 32 | W 8-0 | 21-11 | 1 | 41,425 | Eric Stults | Jonathan Sanchez | Eric Stults | Jonathan Sanchez | | 179 | 120 | 59 |
| 2009-05-10 | vs SFN | 33 | L 5-7 | 21-12 | 1 | 37,529 | Jeff Weaver | Tim Lincecum | Brian Wilson | Guillermo Mota | | 184 | 127 | 57 |
| 2009-05-12 | @ PHI | 34 | L 3-5 | 21-13 | 1 | 45,191 | Clayton Kershaw | Chan Ho Park | Chan Ho Park | Clayton Kershaw | Brad Lidge | 187 | 132 | 55 |
| 2009-05-13 | @ PHI | 35 | W 9-2 | 22-13 | 1 | 45,273 | Randy Wolf | Jamie Moyer | Randy Wolf | Jamie Moyer | | 196 | 134 | 62 |
| 2009-05-14 | @ PHI | 36 | W 5-3 | 23-13 | 1 | 45,307 | Chad Billingsley | Cole Hamels | Jonathan Broxton | Chad Durbin | Ramon Troncoso | 201 | 137 | 64 |
| 2009-05-15 | @ FLO | 37 | W 6-4 | 24-13 | 1 | 20,039 | Eric Stults | Chris Volstad | Jeff Weaver | Chris Volstad | Jonathan Broxton | 207 | 141 | 66 |
| 2009-05-16 | @ FLO | 38 | L 3-6 | 24-14 | 1 | 25,132 | Eric Milton | Andrew Miller | Andrew Miller | Jeff Weaver | Matt Lindstrom | 210 | 147 | 63 |
| 2009-05-17 | @ FLO | 39 | W 12-5 | 24-15 | 1 | 16,332 | Clayton Kershaw | John Koronka | Clayton Kershaw | John Koronka | | 222 | 152 | 70 |
| 2009-05-18 | vs NYN | 40 | W 3-2 | 25-15 | 1 | 37,136 | Randy Wolf | Tim Redding | Ramon Troncoso | Brian Stokes | | 225 | 154 | 71 |
| 2009-05-19 | vs NYN | 41 | W 5-3 | 26-15 | 1 | 37,857 | Chad Billingsley | John Maine | Chad Billingsley | John Maine | Jonathan Broxton | 230 | 157 | 73 |
| 2009-05-20 | vs NYN | 42 | W 2-1 | 27-15 | 1 | 50,761 | Jeff Weaver | Livan Hernandez | Brent Leach | J.J. Putz | Jonathan Broxton | 232 | 158 | 74 |
| 2009-05-22 | vs ANA | 43 | L 1-3 | 27-16 | 1 | 55,053 | Clayton Kershaw | Jered Weaver | Darren Oliver | Cory Wade | Brian Fuentes | 233 | 161 | 72 |
| 2009-05-23 | vs ANA | 44 | W 5-4 | 28-16 | 1 | 55,301 | Randy Wolf | John Lackey | Jonathan Broxton | Jose Arredondo | | 238 | 165 | 73 |
| 2009-05-24 | vs ANA | 45 | L 7-10 | 29-16 | 1 | 54,122 | Chad Billingsley | Matt Palmer | Jason Bulger | Chad Billingsley | | 245 | 175 | 70 |
| 2009-05-25 | @ COL | 46 | W 16-6 | 29-17 | 1 | 37,024 | Eric Stults | Jorge de la Rosa | Will Ohman | Jorge de la Rosa | | 261 | 181 | 80 |
| 2009-05-26 | @ COL | 47 | W 7-1 | 30-17 | 1 | 25,384 | Eric Milton | Aaron Cook | Eric Milton | Aaron Cook | | 268 | 182 | 86 |
| 2009-05-27 | @ COL | 48 | W 8-6 | 31-17 | 1 | 22,271 | Clayton Kershaw | Ubaldo Jimenez | Clayton Kershaw | Ubaldo Jimenez | | 276 | 188 | 88 |
| 2009-05-28 | @ CHN | 49 | W 2-1 | 32-17 | 1 | 39,579 | Randy Wolf | Randy Wells | Randy Wolf | Randy Wells | Ramon Troncoso | 278 | 189 | 89 |
| 2009-05-29 | @ CHN | 50 | L 1-2 | 32-18 | 1 | 40,148 | Chad Billingsley | Ted Lilly | Ted Lilly | Chad Billingsley | Kevin Gregg | 279 | 191 | 88 |
| 2009-05-30 | @ CHN | 51 | L 0-7 | 32-19 | 1 | 41,153 | Eric Stults | Ryan Dempster | Ryan Dempster | Eric Stults | | 279 | 198 | 81 |
| 2009-05-31 | @ CHN | 52 | W 8-2 | 33-19 | 1 | 40,091 | Eric Milton | Sean Marshall | Eric Milton | Sean Marshall | | 287 | 200 | 87 |
| 2009-06-01 | vs ARI | 53 | L 2-3 | 33-20 | 1 | 32,304 | Hiroki Kuroda | Billy Buckner | Billy Buckner | Hiroki Kuroda | Tony Pena | 289 | 203 | 86 |
| 2009-06-02 | vs ARI | 54 | W 6-5 | 34-20 | 1 | 32,853 | Randy Wolf | Dan Haren | Jeff Weaver | Daniel Schlereth | Jonathan Broxton | 295 | 208 | 87 |
| 2009-06-03 | vs ARI | 55 | W 1-0 | 35-20 | 1 | 33,804 | Chad Billingsley | Jon Garland | Chad Billingsley | Jon Garland | Jonathan Broxton | 296 | 208 | 88 |
| 2009-06-04 | vs PHI | 56 | L 0-3 | 35-21 | 1 | 33,839 | Clayton Kershaw | Cole Hamels | Cole Hamels | Clayton Kershaw | | 296 | 211 | 85 |
| 2009-06-05 | vs PHI | 57 | W 4-3 | 36-21 | 1 | 52,538 | Eric Milton | Jamie Moyer | Jonathan Broxton | Brad Lidge | | 300 | 214 | 86 |
| 2009-06-06 | vs PHI | 58 | W 3-2 | 37-21 | 1 | 41,412 | Hiroki Kuroda | Joe Blanton | Cory Wade | Chad Durbin | | 303 | 216 | 87 |
| 2009-06-07 | vs PHI | 59 | L 2-7 | 37-22 | 1 | 42,288 | Randy Wolf | Antonio Bastardo | Antonio Bastardo | Randy Wolf | | 305 | 223 | 82 |
| 2009-06-09 | vs SDN | 60 | W 6-4 | 38-22 | 1 | 35,313 | Chad Billingsley | Chris Young | Chad Billingsley | Chris Young | Jonathan Broxton | 311 | 227 | 84 |
| 2009-06-10 | vs SDN | 61 | L 1-3 | 38-23 | 1 | 44,079 | Clayton Kershaw | Kevin Correia | Kevin Correia | Clayton Kershaw | Heath Bell | 312 | 230 | 82 |
| 2009-06-12 | @ TEX | 62 | L 0-6 | 38-24 | 1 | 36,591 | Hiroki Kuroda | Vicente Padilla | Vicente Padilla | Hiroki Kuroda | | 312 | 236 | 76 |
| 2009-06-13 | @ TEX | 63 | W 3-1 | 39-24 | 1 | 37,262 | Randy Wolf | Scott Feldman | Cory Wade | Jason Grilli | Jonathan Broxton | 315 | 237 | 78 |
| 2009-06-14 | @ TEX | 64 | W 6-3 | 40-24 | 1 | 36,343 | Chad Billingsley | Derek Holland | Chad Billingsley | Derek Holland | Jonathan Broxton | 321 | 240 | 81 |
| 2009-06-16 | vs OAK | 65 | W 5-4 | 41-24 | 1 | 41,169 | Clayton Kershaw | Dallas Braden | Guillermo Mota | Brad Ziegler | | 326 | 244 | 82 |
| 2009-06-17 | vs OAK | 66 | L 4-5 | 41-25 | 1 | 46,274 | Hiroki Kuroda | Trevor Cahill | Trevor Cahill | Hiroki Kuroda | Andrew Bailey | 330 | 249 | 81 |
| 2009-06-18 | vs OAK | 67 | W 3-2 | 42-25 | 1 | 50,492 | Randy Wolf | Vin Mazzaro | Brent Leach | Brad Ziegler | Ramon Troncoso | 333 | 251 | 82 |
| 2009-06-19 | @ ANA | 68 | L 4-5 | 42-26 | 1 | 44,222 | Chad Billingsley | Joe Saunders | Justin Speier | Guillermo Mota | Brian Fuentes | 337 | 256 | 81 |
| 2009-06-20 | @ ANA | 69 | W 6-4 | 43-26 | 1 | 44,148 | Jeff Weaver | Jered Weaver | Jeff Weaver | Jered Weaver | | 343 | 260 | 83 |
| 2009-06-21 | @ ANA | 70 | W 5-3 | 44-26 | 1 | 43,891 | Clayton Kershaw | John Lackey | Clayton Kershaw | John Lackey | Jonathan Broxton | 348 | 263 | 85 |
| 2009-06-23 | @ CHA | 71 | W 5-2 | 45-26 | 1 | 22,251 | Hiroki Kuroda | John Danks | Hiroki Kuroda | John Danks | Jonathan Broxton | 353 | 265 | 88 |
| 2009-06-24 | @ CHA | 72 | L 7-10 | 46-26 | 1 | 20,142 | Randy Wolf | Gavin Floyd | Gavin Floyd | Randy Wolf | Bobby Jenks | 360 | 275 | 85 |
| 2009-06-25 | @ CHA | 73 | L 5-6 | 46-27 | 1 | 20,051 | Chad Billingsley | Clayton Richard | Aaron Poreda | Jeff Weaver | | 365 | 281 | 84 |
| 2009-06-26 | vs SEA | 74 | W 8-2 | 47-27 | 1 | 50,752 | Clayton Kershaw | Jason Vargas | Clayton Kershaw | Jason Vargas | | 373 | 283 | 90 |
| 2009-06-27 | vs SEA | 75 | L 1-5 | 47-28 | 1 | 50,847 | Eric Milton | Felix Hernandez | Felix Hernandez | Eric Milton | | 374 | 288 | 86 |
| 2009-06-28 | vs SEA | 76 | L 2-4 | 47-29 | 1 | 49,355 | Hiroki Kuroda | Garrett Olson | Garrett Olson | Hiroki Kuroda | David Aardsma | 376 | 292 | 84 |
| 2009-06-29 | vs COL | 77 | W 4-2 | 48-29 | 1 | 41,288 | Randy Wolf | Ubaldo Jimenez | James McDonald | Joel Peralta | | 380 | 294 | 86 |
| 2009-06-30 | vs COL | 78 | L 0-3 | 48-30 | 1 | 43,437 | Chad Billingsley | Jason Marquis | Jason Marquis | Chad Billingsley | | 380 | 297 | 83 |
| 2009-07-01 | vs COL | 79 | W 1-0 | 49-30 | 1 | 40,455 | Clayton Kershaw | Jason Hammel | Ramon Troncoso | Jason Hammel | Jonathan Broxton | 381 | 297 | 84 |
| 2009-07-03 | @ SDN | 80 | W 6-3 | 50-30 | 1 | 42,217 | Hiroki Kuroda | Chad Gaudin | Hiroki Kuroda | Chad Gaudin | Jonathan Broxton | 387 | 300 | 87 |
| 2009-07-04 | @ SDN | 81 | L 4-7 | 50-31 | 1 | 42,069 | Randy Wolf | Josh Geer | Greg Burke | Ronald Belisario | Heath Bell | 391 | 307 | 84 |
| 2009-07-05 | @ SDN | 82 | W 7-6 | 51-31 | 1 | 30,070 | Chad Billingsley | Josh Banks | Jeff Weaver | Edward Mujica | | 398 | 313 | 85 |
| 2009-07-07 | @ NYN | 83 | W 8-0 | 52-31 | 1 | 39,636 | Clayton Kershaw | Mike Pelfrey | Clayton Kershaw | Mike Pelfrey | | 406 | 313 | 93 |
| 2009-07-08 | @ NYN | 84 | L 4-5 | 52-32 | 1 | 40,027 | Hiroki Kuroda | Oliver Perez | Oliver Perez | Hiroki Kuroda | Francisco Rodriguez | 410 | 318 | 92 |
| 2009-07-09 | @ NYN | 85 | W 11-2 | 52-33 | 1 | 39,865 | Randy Wolf | Livan Hernandez | Randy Wolf | Livan Hernandez | | 421 | 320 | 101 |
| 2009-07-10 | @ MIL | 86 | W 12-8 | 52-34 | 1 | 41,811 | Chad Billingsley | Braden Looper | Ramon Troncoso | Carlos Villanueva | | 433 | 328 | 105 |
| 2009-07-11 | @ MIL | 87 | L 3-6 | 52-35 | 1 | 43,466 | Jeff Weaver | Mike Burns | Mike Burns | Jeff Weaver | Trevor Hoffman | 436 | 334 | 102 |
| 2009-07-12 | @ MIL | 88 | W 7-4 | 53-35 | 1 | 42,241 | Clayton Kershaw | Yovani Gallardo | Clayton Kershaw | Yovani Gallardo | Ramon Troncoso | 443 | 338 | 105 |
| 2009-07-16 | vs HOU | 89 | L 0-3 | 53-36 | 1 | 45,970 | Randy Wolf | Wandy Rodriguez | Wandy Rodriguez | Randy Wolf | Jose Valverde | 443 | 341 | 102 |
| 2009-07-17 | vs HOU | 90 | L 1-8 | 53-37 | 1 | 51,209 | Chad Billingsley | Roy Oswalt | Roy Oswalt | Chad Billingsley | | 444 | 349 | 95 |
| 2009-07-18 | vs HOU | 91 | W 5-2 | 54-37 | 1 | 48,298 | Clayton Kershaw | Mike Hampton | Clayton Kershaw | Mike Hampton | Jonathan Broxton | 449 | 351 | 98 |
| 2009-07-19 | vs HOU | 92 | W 4-3 | 55-37 | 1 | 40,340 | Hiroki Kuroda | Russ Ortiz | Ramon Troncoso | LaTroy Hawkins | Jonathan Broxton | 453 | 354 | 99 |
| 2009-07-20 | vs CIN | 93 | W 7-5 | 56-37 | 1 | 48,110 | Jason Schmidt | Micah Owings | Jason Schmidt | Micah Owings | Jonathan Broxton | 460 | 359 | 101 |
| 2009-07-21 | vs CIN | 94 | W 12-3 | 56-38 | 1 | 49,027 | Randy Wolf | Homer Bailey | Randy Wolf | Homer Bailey | | 472 | 362 | 110 |
| 2009-07-22 | vs CIN | 95 | W 6-2 | 57-38 | 1 | 56,000 | Chad Billingsley | Bronson Arroyo | Chad Billingsley | Bronson Arroyo | | 478 | 364 | 114 |
| 2009-07-24 | vs FLO | 96 | L 3-6 | 57-39 | 1 | 51,565 | Clayton Kershaw | Josh Johnson | Josh Johnson | James McDonald | Leo Nunez | 481 | 370 | 111 |
| 2009-07-25 | vs FLO | 97 | W 4-3 | 58-39 | 1 | 50,248 | Hiroki Kuroda | Rick Vanden Hurk | Jonathan Broxton | Dan Meyer | | 485 | 373 | 112 |
| 2009-07-26 | vs FLO | 98 | L 6-8 | 58-40 | 1 | 48,597 | Jason Schmidt | Chris Volstad | Chris Volstad | Jason Schmidt | | 491 | 381 | 110 |
| 2009-07-27 | @ SLN | 99 | L 1-6 | 58-41 | 1 | 43,756 | Randy Wolf | Chris Carpenter | Chris Carpenter | Randy Wolf | Ryan Franklin | 492 | 387 | 105 |
| 2009-07-28 | @ SLN | 100 | L 0-10 | 58-42 | 1 | 40,105 | Chad Billingsley | Adam Wainwright | Adam Wainwright | Chad Billingsley | | 492 | 397 | 95 |
| 2009-07-29 | @ SLN | 101 | L 2-3 | 58-43 | 1 | 40,011 | Clayton Kershaw | Joel Pineiro | Blake Hawksworth | Jeff Weaver | | 494 | 400 | 94 |
| 2009-07-30 | @ SLN | 102 | W 5-3 | 59-43 | 1 | 43,263 | Hiroki Kuroda | Kyle Lohse | James McDonald | Dennys Reyes | Jonathan Broxton | 499 | 403 | 96 |
| 2009-07-31 | @ ATL | 103 | W 5-0 | 60-43 | 1 | 45,225 | Jason Schmidt | Tommy Hanson | Jason Schmidt | Tommy Hanson | | 504 | 403 | 101 |
| 2009-08-01 | @ ATL | 104 | L 3-4 | 60-44 | 1 | 49,843 | Randy Wolf | Derek Lowe | Derek Lowe | Randy Wolf | Rafael Soriano | 507 | 407 | 100 |
| 2009-08-02 | @ ATL | 105 | W 9-1 | 61-44 | 1 | 37,654 | Chad Billingsley | Jair Jurrjens | Chad Billingsley | Jair Jurrjens | | 516 | 408 | 108 |
| 2009-08-03 | vs MIL | 106 | L 5-6 | 61-45 | 1 | 46,544 | Clayton Kershaw | Manny Parra | Manny Parra | Clayton Kershaw | Trevor Hoffman | 521 | 414 | 107 |
| 2009-08-04 | vs MIL | 107 | W 17-4 | 61-46 | 1 | 45,535 | Hiroki Kuroda | Yovani Gallardo | Hiroki Kuroda | Yovani Gallardo | | 538 | 418 | 120 |
| 2009-08-05 | vs MIL | 108 | L 1-4 | 61-47 | 1 | 50,276 | Jason Schmidt | Braden Looper | Braden Looper | Jason Schmidt | Trevor Hoffman | 539 | 422 | 117 |
| 2009-08-06 | vs ATL | 109 | W 5-4 | 62-47 | 1 | 46,399 | Randy Wolf | Derek Lowe | Scott Elbert | Rafael Soriano | | 544 | 426 | 118 |
| 2009-08-07 | vs ATL | 110 | L 5-9 | 62-48 | 1 | 53,184 | Chad Billingsley | Jair Jurrjens | Peter Moylan | Ramon Troncoso | | 549 | 435 | 114 |
| 2009-08-08 | vs ATL | 111 | L 1-2 | 62-49 | 2 | 53,338 | Clayton Kershaw | Kenshin Kawakami | Kris Medlen | Guillermo Mota | Rafael Soriano | 550 | 437 | 113 |
| 2009-08-09 | vs ATL | 112 | L 2-8 | 62-50 | 2 | 45,438 | Eric Stults | Javier Vazquez | Javier Vazquez | Eric Stults | | 552 | 445 | 107 |
| 2009-08-10 | @ SFN | 113 | W 4-2 | 63-50 | 1 | 40,522 | Hiroki Kuroda | Jonathan Sanchez | Hiroki Kuroda | Jonathan Sanchez | Jonathan Broxton | 556 | 447 | 109 |
| 2009-08-11 | @ SFN | 114 | W 9-1 | 64-50 | 1 | 41,167 | Randy Wolf | Joe Martinez | Randy Wolf | Joe Martinez | | 565 | 448 | 117 |
| 2009-08-12 | @ SFN | 115 | L 2-4 | 64-51 | 1 | 43,300 | Jeff Weaver | Tim Lincecum | Brian Wilson | Guillermo Mota | | 567 | 452 | 115 |
| 2009-08-14 | @ ARI | 116 | L 1-4 | 64-52 | 1 | 31,573 | Clayton Kershaw | Dan Haren | Dan Haren | Clayton Kershaw | Chad Qualls | 568 | 456 | 112 |
| 2009-08-15 | @ ARI | 117 | L 3-4 | 64-53 | 2 | 42,058 | Hiroki Kuroda | Doug Davis | Chad Qualls | Ramon Troncoso | | 571 | 460 | 111 |
| 2009-08-16 | @ ARI | 118 | W 9-3 | 65-53 | 1 | 34,012 | Randy Wolf | Yusmeiro Petit | Randy Wolf | Yusmeiro Petit | | 580 | 463 | 117 |
| 2009-08-17 | vs SLN | 119 | L 2-3 | 65-54 | 2 | 49,415 | Charlie Haeger | Chris Carpenter | Chris Carpenter | Charlie Haeger | Ryan Franklin | 582 | 466 | 116 |
| 2009-08-18 | vs SLN | 120 | W 7-3 | 66-54 | 2 | 49,052 | Chad Billingsley | Mitchell Boggs | Chad Billingsley | Mitchell Boggs | Jonathan Broxton | 589 | 469 | 120 |
| 2009-08-19 | vs SLN | 121 | L 2-3 | 66-55 | 2 | 54,847 | Clayton Kershaw | Adam Wainwright | Kyle McClellan | Jonathan Broxton | Ryan Franklin | 591 | 472 | 119 |
| 2009-08-20 | vs CHN | 122 | W 7-2 | 67-55 | 2 | 48,974 | Jeff Weaver | Tom Gorzelanny | Ronald Belisario | Angel Guzman | | 598 | 474 | 124 |
| 2009-08-21 | vs CHN | 123 | W 2-1 | 68-55 | 2 | 51,579 | Randy Wolf | Randy Wells | Randy Wolf | Randy Wells | Jonathan Broxton | 600 | 475 | 125 |
| 2009-08-22 | vs CHN | 124 | W 2-0 | 69-55 | 1 | 49,297 | Charlie Haeger | Ted Lilly | Charlie Haeger | Ted Lilly | George Sherrill | 602 | 475 | 127 |
| 2009-08-23 | vs CHN | 125 | L 1-3 | 69-56 | 1 | 49,711 | Chad Billingsley | Ryan Dempster | Ryan Dempster | Chad Billingsley | Carlos Marmol | 603 | 478 | 125 |
| 2009-08-25 | @ COL | 126 | L 4-5 | 69-57 | 2 | 31,472 | Clayton Kershaw | Jason Hammel | Matt Herges | James McDonald | | 607 | 483 | 124 |
| 2009-08-26 | @ COL | 127 | W 6-1 | 70-57 | 2 | 38,350 | Randy Wolf | Josh Fogg | Randy Wolf | Josh Fogg | | 613 | 484 | 129 |
| 2009-08-27 | @ COL | 128 | W 3-2 | 71-57 | 1 | 33,441 | Vicente Padilla | Jorge de la Rosa | Vicente Padilla | Jorge de la Rosa | Jonathan Broxton | 616 | 486 | 130 |
| 2009-08-28 | @ CIN | 129 | L 2-4 | 71-58 | 1 | 19,258 | Chad Billingsley | Homer Bailey | Homer Bailey | Chad Billingsley | | 618 | 490 | 128 |
| 2009-08-29 | @ CIN | 130 | W 11-4 | 71-59 | 2 | 25,744 | Charlie Haeger | Matt Maloney | Jeff Weaver | Matt Maloney | | 629 | 494 | 135 |
| 2009-08-30 | @ CIN | 131 | W 3-2 | 72-59 | 2 | 26,091 | Clayton Kershaw | Bronson Arroyo | James McDonald | Francisco Cordero | Jonathan Broxton | 632 | 496 | 136 |
| 2009-08-31 | vs ARI | 132 | L 3-5 | 72-60 | 2 | 45,211 | Randy Wolf | Doug Davis | Esmerling Vasquez | James McDonald | Juan Gutierrez | 635 | 501 | 134 |
| 2009-09-01 | vs ARI | 133 | W 4-3 | 73-60 | 2 | 45,433 | Vicente Padilla | Yusmeiro Petit | Ronald Belisario | Leo Rosales | Jonathan Broxton | 639 | 504 | 135 |
| 2009-09-02 | vs ARI | 134 | L 1-4 | 73-61 | 2 | 45,076 | Chad Billingsley | Max Scherzer | Max Scherzer | Chad Billingsley | Juan Gutierrez | 640 | 508 | 132 |
| 2009-09-03 | vs ARI | 135 | W 4-2 | 74-61 | 2 | 45,365 | Jon Garland | Billy Buckner | Jon Garland | Billy Buckner | Jonathan Broxton | 644 | 510 | 134 |
| 2009-09-04 | vs SDN | 136 | L 0-2 | 74-62 | 2 | 52,965 | Clayton Kershaw | Wade LeBlanc | Wade LeBlanc | Clayton Kershaw | Heath Bell | 644 | 512 | 132 |
| 2009-09-05 | vs SDN | 137 | W 7-4 | 75-62 | 2 | 53,368 | Randy Wolf | Mat Latos | Randy Wolf | Mat Latos | Jonathan Broxton | 651 | 516 | 135 |
| 2009-09-06 | vs SDN | 138 | L 3-4 | 75-63 | 2 | 47,528 | Hiroki Kuroda | Tim Stauffer | Tim Stauffer | Hiroki Kuroda | Heath Bell | 654 | 520 | 134 |
| 2009-09-07 | @ ARI | 139 | W 7-2 | 76-63 | 2 | 28,317 | Vicente Padilla | Max Scherzer | Vicente Padilla | Max Scherzer | Jonathan Broxton | 661 | 522 | 139 |
| 2009-09-08 | @ ARI | 140 | W 5-4 | 77-63 | 2 | 22,589 | Chad Billingsley | Billy Buckner | James McDonald | Daniel Schlereth | Jonathan Broxton | 666 | 526 | 140 |
| 2009-09-09 | @ ARI | 141 | L 3-4 | 77-64 | 3 | 20,025 | Jon Garland | Dan Haren | Juan Gutierrez | Ramon Troncoso | | 669 | 530 | 139 |
| 2009-09-11 | @ SFN | 142 | W 10-3 | 77-65 | 3 | 39,212 | Hiroki Kuroda | Matt Cain | Hiroki Kuroda | Matt Cain | | 679 | 533 | 146 |
| 2009-09-12 | @ SFN | 143 | W 9-1 | 78-65 | 3 | 41,710 | Vicente Padilla | Jonathan Sanchez | Vicente Padilla | Jonathan Sanchez | | 688 | 534 | 154 |
| 2009-09-13 | @ SFN | 144 | L 2-7 | 78-66 | 3 | 40,579 | Chad Billingsley | Brad Penny | Brad Penny | Chad Billingsley | | 690 | 541 | 149 |
| 2009-09-14 | vs PIT | 145 | W 6-2 | 79-66 | 3 | 42,045 | Jon Garland | Daniel McCutchen | Jon Garland | Daniel McCutchen | | 696 | 543 | 153 |
| 2009-09-15 | vs PIT | 146 | W 5-4 | 80-66 | 3 | 52,562 | Randy Wolf | Zach Duke | Ronald Belisario | Phil Dumatrait | | 701 | 547 | 154 |
| 2009-09-16 | vs PIT | 147 | W 3-1 | 81-66 | 2 | 53,193 | Hiroki Kuroda | Kevin Hart | Hiroki Kuroda | Kevin Hart | Jonathan Broxton | 704 | 548 | 156 |
| 2009-09-18 | vs SFN | 148 | L 4-8 | 81-67 | 3 | 53,679 | Vicente Padilla | Jonathan Sanchez | Bob Howry | Ramon Troncoso | | 708 | 556 | 152 |
| 2009-09-19 | vs SFN | 149 | W 12-1 | 82-67 | 1 | 52,438 | Jon Garland | Brad Penny | Jon Garland | Brad Penny | | 720 | 557 | 163 |
| 2009-09-20 | vs SFN | 150 | W 6-2 | 83-67 | 1 | 53,233 | Randy Wolf | Tim Lincecum | Randy Wolf | Tim Lincecum | | 726 | 559 | 167 |
| 2009-09-22 | @ WAS | 151 | W 14-2 | 83-68 | 2 | 18,518 | Hiroki Kuroda | Livan Hernandez | Hiroki Kuroda | Livan Hernandez | | 740 | 561 | 179 |
| 2009-09-23 | @ WAS | 152 | L 4-5 | 83-69 | 3 | 18,635 | Chad Billingsley | Ross Detwiler | Saul Rivera | James McDonald | | 744 | 566 | 178 |
| 2009-09-24 | @ WAS | 153 | W 7-6 | 84-69 | 1 | 22,432 | Vicente Padilla | J.D. Martin | Ramon Troncoso | Ron Villone | Jonathan Broxton | 751 | 572 | 179 |
| 2009-09-25 | @ PIT | 154 | L 1-3 | 84-70 | 2 | 19,452 | Jon Garland | Jeff Karstens | Donald Veal | Jon Garland | Matt Capps | 752 | 575 | 177 |
| 2009-09-26 | @ PIT | 155 | W 8-4 | 85-70 | 1 | 35,605 | Randy Wolf | Paul Maholm | George Sherrill | Denny Bautista | | 760 | 579 | 181 |
| 2009-09-27 | @ PIT | 156 | L 5-6 | 85-71 | 2 | 26,831 | Clayton Kershaw | Daniel McCutchen | Matt Capps | Jonathan Broxton | | 765 | 585 | 180 |
| 2009-09-28 | @ PIT | 157 | L 1-11 | 85-72 | 3 | 16,696 | Hiroki Kuroda | Zach Duke | Zach Duke | Hiroki Kuroda | | 766 | 596 | 170 |
| 2009-09-29 | @ SDN | 158 | L 1-3 | 85-73 | 3 | 25,318 | Chad Billingsley | Cesar Ramos | Ryan Webb | Chad Billingsley | Heath Bell | 767 | 599 | 168 |
| 2009-09-30 | @ SDN | 159 | L 0-5 | 85-74 | 3 | 25,469 | Jon Garland | Clayton Richard | Clayton Richard | Jon Garland | | 767 | 604 | 163 |
| 2009-10-02 | vs COL | 160 | L 3-4 | 85-75 | 3 | 54,131 | Randy Wolf | Ubaldo Jimenez | Ubaldo Jimenez | Randy Wolf | Huston Street | 770 | 608 | 162 |
| 2009-10-03 | vs COL | 161 | W 5-0 | 86-75 | 3 | 54,531 | Clayton Kershaw | Jorge de la Rosa | Hong-Chih Kuo | Franklin Morales | | 775 | 608 | 167 |
| 2009-10-04 | vs COL | 162 | W 5-3 | 87-75 | 3 | 51,396 | Vicente Padilla | Jason Marquis | Vicente Padilla | Jason Marquis | Ramon Troncoso | 780 | 611 | 169 |