Joe Kelly career ERA
3.98Career Regular Season
Joe Kelly has a career ERA of 3.98 over 13 regular seasons.
- Best season on file: 1.80 in 2020.
- Most recent: 4.78 in 2024.
Average of 13 regular seasons, 2012 through 2024. Figures come from ESPN's box scores and were last read on September 22, 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 2012 |  STL | 24 | 5 | 7 | 3.53 | 107.0 | 75 | 36 | 1.38 | 0 |
| 2013 | STL | 37 | 10 | 5 | 2.69 | 124.0 | 79 | 44 | 1.35 | 0 |
| 2014 |  STL/BOS | 17 | 6 | 4 | 4.20 | 96.1 | 66 | 42 | 1.35 | 0 |
| 2015 | BOS | 25 | 10 | 6 | 4.82 | 134.1 | 110 | 49 | 1.44 | 0 |
| 2016 | BOS | 20 | 4 | 0 | 5.18 | 40.0 | 48 | 24 | 1.70 | 0 |
| 2017 | BOS | 54 | 4 | 1 | 2.79 | 58.0 | 52 | 27 | 1.19 | 0 |
| 2018 | BOS | 73 | 4 | 2 | 4.39 | 65.2 | 68 | 32 | 1.36 | 2 |
| 2019 |  LAD | 55 | 5 | 4 | 4.56 | 51.1 | 62 | 22 | 1.38 | 1 |
| 2020 | LAD | 12 | 0 | 0 | 1.80 | 10.0 | 9 | 7 | 1.50 | 0 |
| 2021 | LAD | 48 | 2 | 0 | 2.86 | 44.0 | 50 | 15 | 0.98 | 2 |
| 2022 |  CHW | 43 | 1 | 3 | 6.08 | 37.0 | 53 | 23 | 1.59 | 1 |
| 2023 | CHW/LAD | 42 | 2 | 5 | 4.12 | 39.1 | 60 | 18 | 1.19 | 1 |
| 2024 | LAD | 35 | 1 | 1 | 4.78 | 32.0 | 35 | 16 | 1.47 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV