Zack Greinke ERA in 2020
4.032020 Regular Season
Zack Greinke posted a 4.03 ERA in the 2020 regular season.
- 14th-best of Zack Greinke's 20 seasons on file; the best is 1.66 in 2015.
- Up 1.10 from 2.93 in 2019.
Average of 20 regular seasons, 2004 through 2023. Figures come from ESPN's box scores and were last read on September 21, 2026.
| GP: Games the player appeared in, however briefly. | W: Games in which this pitcher was credited with the win. | L: Games in which this pitcher was charged with the loss. | ERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent. | IP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs. | K: Batters this pitcher struck out. | BB: Times the batter reached first base on four balls. | WHIP: Walks and hits allowed per inning pitched — lower is better. Around 1.00 is elite. | SV: Games finished by protecting a narrow lead to the last out. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 2004 |  KC | 24 | 8 | 11 | 3.97 | 145.0 | 100 | 26 | 1.17 | 0 |
| 2005 | KC | 33 | 5 | 17 | 5.80 | 183.0 | 114 | 53 | 1.56 | 0 |
| 2006 | KC | 3 | 1 | 0 | 4.26 | 6.1 | 5 | 3 | 1.58 | 0 |
| 2007 | KC | 52 | 7 | 7 | 3.69 | 122.0 | 106 | 36 | 1.30 | 1 |
| 2008 | KC | 32 | 13 | 10 | 3.47 | 202.1 | 183 | 56 | 1.28 | 0 |
| 2009 | KC | 33 | 16 | 8 | 2.16 | 229.1 | 242 | 51 | 1.07 | 0 |
| 2010 | KC | 33 | 10 | 14 | 4.17 | 220.0 | 181 | 55 | 1.25 | 0 |
| 2011 |  MIL | 28 | 16 | 6 | 3.83 | 171.2 | 201 | 45 | 1.20 | 0 |
| 2012 |  MIL/LAA | 34 | 15 | 5 | 3.48 | 212.1 | 200 | 54 | 1.20 | 0 |
| 2013 |  LAD | 28 | 15 | 4 | 2.63 | 177.2 | 148 | 46 | 1.11 | 0 |
| 2014 | LAD | 32 | 17 | 8 | 2.71 | 202.1 | 207 | 43 | 1.15 | 0 |
| 2015 | LAD | 32 | 19 | 3 | 1.66 | 222.2 | 200 | 40 | 0.84 | 0 |
| 2016 |  ARI | 26 | 13 | 7 | 4.37 | 158.2 | 134 | 41 | 1.27 | 0 |
| 2017 | ARI | 32 | 17 | 7 | 3.20 | 202.1 | 215 | 45 | 1.07 | 0 |
| 2018 | ARI | 33 | 15 | 11 | 3.21 | 207.2 | 199 | 43 | 1.08 | 0 |
| 2019 |  ARI/HOU | 33 | 18 | 5 | 2.93 | 208.2 | 187 | 30 | 0.98 | 0 |
| 2020 | HOU | 12 | 3 | 3 | 4.03 | 67.0 | 67 | 9 | 1.13 | 0 |
| 2021 | HOU | 30 | 11 | 6 | 4.16 | 171.0 | 120 | 36 | 1.17 | 0 |
| 2022 | KC | 26 | 4 | 9 | 3.68 | 137.0 | 73 | 27 | 1.34 | 0 |
| 2023 | KC | 30 | 2 | 15 | 5.06 | 142.1 | 97 | 23 | 1.27 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV