| MLB Pitching Leaders - 1999 - Innings Pitched | |||||||||||||||
| PLAYER | YRS | G | GS | CG | SH | IP | H | ER | BB | SO | W | L | SV | ERA | |
| 1 | Randy Johnson | 22 | 35 | 35 | 12 | 2 | 271.2 | 207 | 75 | 70 | 364 | 17 | 9 | 0 | 2.48 |
| 2 | Kevin Brown | 19 | 35 | 35 | 5 | 1 | 252.1 | 210 | 84 | 59 | 221 | 18 | 9 | 0 | 3.00 |
| 3 | Jose Lima | 13 | 35 | 35 | 3 | 0 | 246.1 | 256 | 98 | 44 | 187 | 21 | 10 | 0 | 3.58 |
| 4 | Mike Hampton | 16 | 34 | 34 | 3 | 2 | 239.0 | 206 | 77 | 101 | 177 | 22 | 4 | 0 | 2.90 |
| 5 | Tom Glavine | 22 | 35 | 35 | 2 | 0 | 234.0 | 259 | 107 | 83 | 138 | 14 | 11 | 0 | 4.12 |
| 6 | Pedro Astacio | 15 | 34 | 34 | 7 | 0 | 232.0 | 258 | 130 | 75 | 210 | 17 | 11 | 0 | 5.04 |
| 7 | David Wells | 21 | 34 | 34 | 7 | 1 | 231.2 | 246 | 124 | 62 | 169 | 17 | 10 | 0 | 4.82 |
| Shane Reynolds | 13 | 35 | 35 | 4 | 2 | 231.2 | 250 | 99 | 37 | 197 | 16 | 14 | 0 | 3.85 | |
| 9 | Scott Erickson | 15 | 34 | 34 | 6 | 3 | 230.1 | 244 | 123 | 99 | 106 | 15 | 12 | 0 | 4.81 |
| 10 | Jamie Moyer | 25 | 32 | 32 | 4 | 0 | 228.0 | 235 | 98 | 48 | 137 | 14 | 8 | 0 | 3.87 |
| PLAYER | YRS | G | GS | CG | SH | IP | H | ER | BB | SO | W | L | SV | ERA | |
| Kevin Millwood | 16 | 33 | 33 | 2 | 0 | 228.0 | 168 | 68 | 59 | 205 | 18 | 7 | 0 | 2.68 | |
| 12 | Dave Burba | 15 | 34 | 34 | 1 | 0 | 220.0 | 211 | 104 | 96 | 174 | 15 | 9 | 0 | 4.25 |
| 13 | Greg Maddux | 23 | 33 | 33 | 4 | 0 | 219.1 | 258 | 87 | 37 | 136 | 19 | 9 | 0 | 3.57 |
| Rick Helling | 12 | 35 | 35 | 3 | 0 | 219.1 | 228 | 118 | 85 | 131 | 13 | 11 | 0 | 4.84 | |
| 15 | Brad Radke | 12 | 33 | 33 | 4 | 0 | 218.2 | 239 | 91 | 44 | 121 | 12 | 14 | 0 | 3.75 |
| 16 | Dustin Hermanson | 12 | 34 | 34 | 0 | 0 | 216.1 | 225 | 101 | 69 | 145 | 9 | 14 | 0 | 4.20 |
| 17 | Omar Daal | 11 | 32 | 32 | 2 | 1 | 214.2 | 188 | 87 | 79 | 148 | 16 | 9 | 0 | 3.65 |
| 18 | Orlando Hernandez | 9 | 33 | 33 | 2 | 1 | 214.1 | 187 | 98 | 87 | 157 | 17 | 9 | 0 | 4.12 |
| 19 | Chuck Finley | 17 | 33 | 33 | 1 | 0 | 213.1 | 197 | 105 | 94 | 200 | 12 | 11 | 0 | 4.43 |
| Pedro Martinez | 18 | 31 | 29 | 5 | 1 | 213.1 | 160 | 49 | 37 | 313 | 23 | 4 | 0 | 2.07 | |
| PLAYER | YRS | G | GS | CG | SH | IP | H | ER | BB | SO | W | L | SV | ERA | |
| 21 | Al Leiter | 19 | 32 | 32 | 1 | 1 | 213.0 | 209 | 100 | 93 | 162 | 13 | 12 | 0 | 4.23 |
| 22 | Jason Schmidt | 14 | 33 | 33 | 2 | 0 | 212.2 | 219 | 99 | 85 | 148 | 13 | 11 | 0 | 4.19 |
| 23 | Sidney Ponson | 12 | 32 | 32 | 6 | 0 | 210.0 | 227 | 110 | 80 | 112 | 12 | 12 | 0 | 4.71 |
| 24 | Kevin Appier | 16 | 34 | 34 | 1 | 0 | 209.0 | 230 | 120 | 84 | 131 | 16 | 14 | 0 | 5.17 |
| Mike Sirotka | 6 | 32 | 32 | 3 | 1 | 209.0 | 236 | 93 | 57 | 125 | 11 | 13 | 0 | 4.00 | |
| 26 | Jeff Suppan | 17 | 32 | 32 | 4 | 1 | 208.2 | 222 | 105 | 62 | 103 | 10 | 12 | 0 | 4.53 |
| 27 | Woody Williams | 15 | 33 | 33 | 0 | 0 | 208.1 | 213 | 102 | 73 | 137 | 12 | 12 | 0 | 4.41 |
| 28 | Jose Rosado | 5 | 33 | 33 | 5 | 0 | 208.0 | 197 | 89 | 72 | 141 | 10 | 14 | 0 | 3.85 |
| 29 | Russ Ortiz | 12 | 33 | 33 | 3 | 0 | 207.2 | 189 | 88 | 125 | 164 | 18 | 9 | 0 | 3.81 |
| 30 | Eric Milton | 11 | 34 | 34 | 4 | 2 | 206.1 | 190 | 103 | 63 | 163 | 7 | 11 | 0 | 4.49 |
| PLAYER | YRS | G | GS | CG | SH | IP | H | ER | BB | SO | W | L | SV | ERA | |
| 31 | Andy Ashby | 14 | 31 | 31 | 4 | 3 | 206.0 | 204 | 87 | 54 | 132 | 14 | 10 | 0 | 3.80 |
| 32 | Omar Olivares | 12 | 32 | 32 | 4 | 0 | 205.2 | 217 | 95 | 81 | 85 | 15 | 11 | 0 | 4.16 |
| Sterling Hitchcock | 13 | 33 | 33 | 1 | 0 | 205.2 | 202 | 94 | 76 | 194 | 12 | 14 | 0 | 4.11 | |
| Steve Trachsel | 16 | 34 | 34 | 4 | 0 | 205.2 | 226 | 127 | 64 | 149 | 8 | 18 | 0 | 5.56 | |
| 35 | Aaron Sele | 15 | 33 | 33 | 2 | 2 | 205.0 | 244 | 109 | 70 | 186 | 18 | 9 | 0 | 4.79 |
| Bartolo Colon | 15 | 32 | 32 | 1 | 1 | 205.0 | 185 | 90 | 76 | 161 | 18 | 5 | 0 | 3.95 | |
| 37 | Mike Mussina | 18 | 31 | 31 | 4 | 0 | 203.1 | 207 | 79 | 52 | 172 | 18 | 7 | 0 | 3.50 |
| Jon Lieber | 14 | 31 | 31 | 3 | 1 | 203.1 | 226 | 92 | 46 | 186 | 10 | 11 | 0 | 4.07 | |
| Ismael Valdez | 12 | 32 | 32 | 2 | 1 | 203.1 | 213 | 90 | 58 | 143 | 9 | 14 | 0 | 3.98 | |
| 40 | Shawn Estes | 13 | 32 | 32 | 1 | 1 | 203.0 | 209 | 111 | 112 | 159 | 11 | 11 | 0 | 4.92 |
| PLAYER | YRS | G | GS | CG | SH | IP | H | ER | BB | SO | W | L | SV | ERA | |
| 41 | Charles Nagy | 14 | 33 | 32 | 1 | 0 | 202.0 | 238 | 111 | 59 | 126 | 17 | 11 | 0 | 4.95 |
| 42 | Freddy Garcia | 14 | 33 | 33 | 2 | 1 | 201.1 | 205 | 91 | 90 | 170 | 17 | 8 | 0 | 4.07 |
| 43 | Gil Heredia | 10 | 33 | 33 | 1 | 0 | 200.1 | 228 | 107 | 34 | 117 | 13 | 8 | 0 | 4.81 |
| 44 | Juan Guzman | 10 | 33 | 33 | 2 | 1 | 200.0 | 194 | 83 | 86 | 155 | 11 | 12 | 0 | 3.74 |
| 45 | Paul Byrd | 14 | 32 | 32 | 1 | 0 | 199.2 | 205 | 102 | 70 | 106 | 15 | 11 | 0 | 4.60 |
| Livan Hernandez | 17 | 30 | 30 | 2 | 0 | 199.2 | 227 | 103 | 76 | 144 | 8 | 12 | 0 | 4.64 | |
| 47 | James Baldwin | 11 | 35 | 33 | 1 | 0 | 199.1 | 219 | 113 | 81 | 123 | 12 | 13 | 0 | 5.10 |
| 48 | Pat Hentgen | 14 | 34 | 34 | 1 | 0 | 199.0 | 225 | 106 | 65 | 118 | 11 | 12 | 0 | 4.79 |
| Dave Mlicki | 10 | 33 | 31 | 2 | 0 | 199.0 | 219 | 102 | 72 | 120 | 14 | 13 | 0 | 4.61 | |
| 50 | Pete Harnisch | 14 | 33 | 33 | 2 | 2 | 198.1 | 190 | 81 | 57 | 120 | 16 | 10 | 0 | 3.68 |