Randy Johnson had a 118-62 record with an ERA of 2.83 and 2,077 strikeouts in 233 appearances for the Diamondbacks in his career.
| NAME | SEASON | TM | G | W | L | W% | GS | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | ERA- | FIP | FIP- | H/9 | PRAA | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | R. Johnson | 1999 |  ARI | 35 | 17 | 9 | .654 | 35 | 2.48 | 364 | 12 | 2 | 0 | 271.2 | 207 | 75 | 86 | 30 | 70 | 9 | 0 | 3 | 1,079 | 4 | 12.06 | 2.32 | 5.20 | 0.99 | 33.7 | 6.5 | 1.02 | .292 | 2.85 | 53 | 2.75 | 59 | 6.86 | 57.2 |
| 2 | | R. Johnson | 2000 | ARI | 35 | 19 | 7 | .731 | 35 | 2.64 | 347 | 8 | 3 | 0 | 248.2 | 202 | 73 | 89 | 23 | 76 | 6 | 0 | 1 | 1,001 | 5 | 12.56 | 2.75 | 4.57 | 0.83 | 34.7 | 7.6 | 1.12 | .326 | 3.22 | 56 | 2.53 | 53 | 7.31 | 61.1 |
| 3 | | R. Johnson | 2001 | ARI | 35 | 21 | 6 | .778 | 34 | 2.49 | 372 | 3 | 2 | 0 | 249.2 | 181 | 69 | 74 | 19 | 71 | 18 | 1 | 2 | 994 | 8 | 13.41 | 2.56 | 5.24 | 0.68 | 37.4 | 7.1 | 1.01 | .315 | 2.67 | 55 | 2.12 | 48 | 6.52 | 63.9 |
| 4 | | R. Johnson | 2002 | ARI | 35 | 24 | 5 | .828 | 35 | 2.32 | 334 | 8 | 4 | 0 | 260.0 | 197 | 67 | 78 | 26 | 71 | 13 | 0 | 1 | 1,035 | 3 | 11.56 | 2.46 | 4.70 | 0.90 | 32.3 | 6.9 | 1.03 | .289 | 2.70 | 54 | 2.65 | 61 | 6.82 | 47 |
| 5 | | R. Johnson | 2003 | ARI | 18 | 6 | 8 | .429 | 18 | 4.26 | 125 | 1 | 1 | 0 | 114.0 | 125 | 54 | 61 | 16 | 27 | 8 | 0 | 3 | 489 | 1 | 9.87 | 2.13 | 4.63 | 1.26 | 25.6 | 5.5 | 1.33 | .348 | 4.82 | 95 | 3.58 | 80 | 9.87 | 11 |
| 6 | | R. Johnson | 2004 | ARI | 35 | 16 | 14 | .533 | 35 | 2.60 | 290 | 4 | 2 | 0 | 245.2 | 177 | 71 | 88 | 18 | 44 | 10 | 0 | 1 | 964 | 3 | 10.62 | 1.61 | 6.59 | 0.66 | 30.1 | 4.6 | 0.90 | .264 | 3.22 | 57 | 2.29 | 51 | 6.48 | 59.7 |
| 7 | | R. Johnson | 2007 |  ARI | 10 | 4 | 3 | .571 | 10 | 3.81 | 72 | 0 | 0 | 0 | 56.2 | 52 | 24 | 26 | 7 | 13 | 4 | 0 | 3 | 233 | 1 | 11.44 | 2.06 | 5.54 | 1.11 | 30.9 | 5.6 | 1.15 | .328 | 4.13 | 81 | 3.19 | 69 | 8.26 | 8.8 |
| 8 | | R. Johnson | 2008 | ARI | 30 | 11 | 10 | .524 | 30 | 3.91 | 173 | 2 | 0 | 0 | 184.0 | 184 | 80 | 92 | 24 | 44 | 6 | 0 | 6 | 778 | 2 | 8.46 | 2.15 | 3.93 | 1.17 | 22.2 | 5.7 | 1.24 | .301 | 4.50 | 87 | 3.75 | 85 | 9.00 | 13.1 |
| Total | 233 | 118 | 62 | .656 | 232 | 2.83 | 2,077 | 38 | 14 | 0 | 1630.1 | 1,325 | 513 | 594 | 163 | 416 | 74 | 1 | 20 | 6,573 | 27 | 11.47 | 2.30 | 4.99 | 0.90 | 31.6 | 6.3 | 1.07 | .302 | 3.28 | 62 | 2.72 | 60 | 7.31 | 321.8 |
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