Since 2000, Cory Lidle has the best ERA when pitching at least 25 innings in a month, with an ERA of 0.20 in August 2002.
Interpreted as:
lowest era by a player in a month with at least 25 ip since 2000| NAME | ERA | IP | MONTH | G | W | L | W% | GS | SO | CG | SHO | SV | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | H/9 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | C. Lidle | 0.20 | 45.1 | August 2002 | 6 | 5 | 0 | 1.000 | 6 | 29 | 1 | 1 | 0 | 23 | 1 | 2 | 0 | 8 | 0 | 0 | 0 | 163 | 0 | 5.76 | 1.59 | 3.63 | 0.00 | 17.8 | 4.9 | 0.68 | .183 | 0.40 | 4.57 |
| 2 | | C. Lee | 0.21 | 42.0 | June 2011 | 5 | 5 | 0 | 1.000 | 5 | 29 | 3 | 3 | 0 | 21 | 1 | 1 | 0 | 8 | 0 | 0 | 0 | 147 | 0 | 6.21 | 1.71 | 3.63 | 0.00 | 19.7 | 5.4 | 0.69 | .191 | 0.21 | 4.50 |
| 3 | | S. Kazmir | 0.26 | 34.0 | July 2015 | 5 | 2 | 0 | 1.000 | 5 | 24 | 0 | 0 | 0 | 15 | 1 | 2 | 0 | 6 | 1 | 0 | 0 | 120 | 1 | 6.35 | 1.59 | 4.00 | 0.00 | 20.0 | 5.0 | 0.62 | .169 | 0.53 | 3.97 |
| 4 |  | C. Kershaw | 0.27 | 33.0 | July 2015 | 4 | 3 | 0 | 1.000 | 4 | 45 | 2 | 2 | 0 | 19 | 1 | 1 | 0 | 2 | 1 | 0 | 0 | 120 | 2 | 12.27 | 0.55 | 22.50 | 0.00 | 37.5 | 1.7 | 0.64 | .264 | 0.27 | 5.18 |
| 5 |  | F. Peralta | 0.32 | 28.0 | August 2025 | 5 | 4 | 0 | 1.000 | 5 | 34 | 0 | 0 | 0 | 11 | 1 | 1 | 1 | 12 | 1 | 0 | 0 | 107 | 0 | 10.93 | 3.86 | 2.83 | 0.32 | 31.8 | 11.2 | 0.82 | .169 | 0.32 | 3.54 |
| 6 | | E. Pérez | 0.32 | 28.0 | June 2023 | 5 | 3 | 0 | 1.000 | 5 | 35 | 0 | 0 | 0 | 18 | 1 | 1 | 1 | 5 | 0 | 0 | 0 | 106 | 1 | 11.25 | 1.61 | 7.00 | 0.32 | 33.0 | 4.7 | 0.82 | .262 | 0.32 | 5.79 |
| 7 |  | D. Cease | 0.33 | 27.1 | June 2022 | 5 | 2 | 1 | .667 | 5 | 45 | 0 | 0 | 0 | 19 | 1 | 10 | 1 | 14 | 0 | 0 | 0 | 113 | 0 | 14.82 | 4.61 | 3.21 | 0.33 | 39.8 | 12.4 | 1.21 | .340 | 3.29 | 6.26 |
| 8 |  | H. Greene | 0.33 | 27.0 | July 2024 | 4 | 2 | 0 | 1.000 | 4 | 29 | 0 | 0 | 0 | 9 | 1 | 1 | 1 | 8 | 3 | 0 | 0 | 98 | 1 | 9.67 | 2.67 | 3.63 | 0.33 | 29.6 | 8.2 | 0.63 | .140 | 0.33 | 3.00 |
| 9 |  | M. Harvey | 0.33 | 27.0 | August 2015 | 4 | 2 | 0 | 1.000 | 4 | 24 | 0 | 0 | 0 | 15 | 1 | 1 | 1 | 2 | 0 | 0 | 0 | 96 | 1 | 8.00 | 0.67 | 12.00 | 0.33 | 25.0 | 2.1 | 0.63 | .203 | 0.33 | 5.00 |
| 10 |  | C. Bassitt | 0.34 | 26.2 | September 2020 | 4 | 3 | 0 | 1.000 | 4 | 25 | 0 | 0 | 0 | 23 | 1 | 1 | 1 | 5 | 0 | 0 | 0 | 104 | 0 | 8.44 | 1.69 | 5.00 | 0.34 | 24.0 | 4.8 | 1.05 | .301 | 0.34 | 7.76 |
| 11 | | N. Martinez | 0.35 | 26.0 | April 2015 | 4 | 2 | 0 | 1.000 | 4 | 11 | 0 | 0 | 0 | 21 | 1 | 2 | 0 | 8 | 2 | 0 | 0 | 105 | 0 | 3.81 | 2.77 | 1.38 | 0.00 | 10.5 | 7.6 | 1.12 | .250 | 0.69 | 7.27 |
| 12 |  | C. Sale | 0.36 | 25.0 | July 2018 | 4 | 3 | 0 | 1.000 | 4 | 43 | 0 | 0 | 0 | 16 | 1 | 1 | 0 | 4 | 2 | 0 | 0 | 96 | 1 | 15.48 | 1.44 | 10.75 | 0.00 | 44.8 | 4.2 | 0.80 | .340 | 0.36 | 5.76 |
| 13 |  | J. Arrieta | 0.43 | 42.1 | August 2015 | 6 | 6 | 0 | 1.000 | 6 | 43 | 1 | 1 | 0 | 19 | 2 | 4 | 0 | 10 | 2 | 0 | 0 | 159 | 2 | 9.14 | 2.13 | 4.30 | 0.00 | 27.0 | 6.3 | 0.69 | .183 | 0.85 | 4.04 |
| 14 | | J. Arrieta | 0.45 | 40.0 | September 2015 | 5 | 4 | 0 | 1.000 | 5 | 39 | 1 | 1 | 0 | 20 | 2 | 3 | 1 | 4 | 1 | 0 | 0 | 140 | 1 | 8.78 | 0.90 | 9.75 | 0.23 | 27.9 | 2.9 | 0.60 | .200 | 0.68 | 4.50 |
| 15 | | J. Santana | 0.45 | 40.0 | September 2004 | 6 | 5 | 0 | 1.000 | 6 | 52 | 0 | 0 | 0 | 20 | 2 | 2 | 0 | 7 | 2 | 0 | 0 | 146 | 1 | 11.70 | 1.58 | 7.43 | 0.00 | 35.6 | 4.8 | 0.68 | .235 | 0.45 | 4.50 |
| 16 | | C. Lee | 0.45 | 39.2 | August 2011 | 5 | 5 | 0 | 1.000 | 5 | 39 | 1 | 1 | 0 | 23 | 2 | 2 | 1 | 8 | 2 | 0 | 0 | 146 | 0 | 8.85 | 1.82 | 4.88 | 0.23 | 26.7 | 5.5 | 0.78 | .229 | 0.45 | 5.22 |
| 17 |  | J. Lester | 0.48 | 37.2 | September 2016 | 5 | 5 | 0 | 1.000 | 5 | 31 | 1 | 0 | 0 | 22 | 2 | 2 | 1 | 4 | 1 | 0 | 0 | 135 | 0 | 7.41 | 0.96 | 7.75 | 0.24 | 23.0 | 3.0 | 0.69 | .214 | 0.48 | 5.26 |
| 18 |  | Z. Greinke | 0.50 | 36.0 | April 2009 | 5 | 5 | 0 | 1.000 | 5 | 44 | 2 | 1 | 0 | 24 | 2 | 3 | 0 | 8 | 1 | 0 | 0 | 138 | 1 | 11.00 | 2.00 | 5.50 | 0.00 | 31.9 | 5.8 | 0.89 | .282 | 0.75 | 6.00 |
| 19 | | K. Medlen | 0.50 | 35.2 | August 2012 | 5 | 4 | 0 | 1.000 | 5 | 35 | 1 | 1 | 0 | 27 | 2 | 2 | 0 | 4 | 0 | 0 | 0 | 131 | 1 | 8.83 | 1.01 | 8.75 | 0.00 | 26.7 | 3.1 | 0.87 | .293 | 0.50 | 6.81 |
| 20 |  | J. deGrom | 0.51 | 35.0 | April 2021 | 5 | 2 | 2 | .500 | 5 | 59 | 1 | 1 | 0 | 16 | 2 | 5 | 2 | 4 | 0 | 0 | 0 | 123 | 0 | 15.17 | 1.03 | 14.75 | 0.51 | 48.0 | 3.3 | 0.57 | .241 | 1.29 | 4.11 |
| 21 | | D. Fister | 0.53 | 34.0 | September 2011 | 5 | 5 | 0 | 1.000 | 4 | 34 | 0 | 0 | 0 | 15 | 2 | 4 | 2 | 3 | 1 | 0 | 0 | 122 | 0 | 9.00 | 0.79 | 11.33 | 0.53 | 27.9 | 2.5 | 0.53 | .159 | 1.06 | 3.97 |
| 22 | | C. Martinez | 0.54 | 33.1 | April 2018 | 5 | 2 | 0 | 1.000 | 5 | 35 | 0 | 0 | 0 | 19 | 2 | 2 | 1 | 11 | 7 | 0 | 0 | 134 | 1 | 9.45 | 2.97 | 3.18 | 0.27 | 26.1 | 8.2 | 0.90 | .225 | 0.54 | 5.13 |
| 23 | | Y. Gallardo | 0.54 | 33.1 | June 2015 | 5 | 2 | 0 | 1.000 | 5 | 25 | 0 | 0 | 0 | 20 | 2 | 3 | 0 | 9 | 0 | 0 | 0 | 125 | 2 | 6.75 | 2.43 | 2.78 | 0.00 | 20.0 | 7.2 | 0.87 | .220 | 0.81 | 5.40 |
| 24 | | J. Zimmermann | 0.55 | 33.0 | April 2016 | 5 | 5 | 0 | 1.000 | 5 | 23 | 0 | 0 | 0 | 28 | 2 | 4 | 1 | 7 | 0 | 0 | 0 | 132 | 1 | 6.27 | 1.91 | 3.29 | 0.27 | 17.4 | 5.3 | 1.06 | .267 | 1.09 | 7.64 |
| 25 | | H. Kuroda | 0.55 | 33.0 | July 2013 | 5 | 3 | 0 | 1.000 | 5 | 24 | 0 | 0 | 0 | 25 | 2 | 2 | 0 | 6 | 1 | 0 | 0 | 126 | 3 | 6.55 | 1.64 | 4.00 | 0.00 | 19.0 | 4.8 | 0.94 | .263 | 0.55 | 6.82 |
StatMuse has game-level data for ERA and innings pitched going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
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