Zach Eflin career ERA
4.28Career Regular Season
Zach Eflin has a career ERA of 4.28 over 11 regular seasons.
- Best season on file: 2.45 in 2026.
Average of 11 regular seasons, 2016 through 2026. 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 2016 |  PHI | 11 | 3 | 5 | 5.54 | 63.1 | 31 | 17 | 1.33 | 0 |
| 2017 | PHI | 11 | 1 | 5 | 6.16 | 64.1 | 35 | 12 | 1.41 | 0 |
| 2018 | PHI | 24 | 11 | 8 | 4.36 | 128.0 | 123 | 37 | 1.30 | 0 |
| 2019 | PHI | 32 | 10 | 13 | 4.13 | 163.1 | 129 | 48 | 1.35 | 0 |
| 2020 | PHI | 11 | 4 | 2 | 3.97 | 59.0 | 70 | 15 | 1.27 | 0 |
| 2021 | PHI | 18 | 4 | 7 | 4.17 | 105.2 | 99 | 16 | 1.25 | 0 |
| 2022 | PHI | 20 | 3 | 5 | 4.04 | 75.2 | 65 | 15 | 1.12 | 1 |
| 2023 |  TB | 31 | 16 | 8 | 3.50 | 177.2 | 186 | 24 | 1.02 | 0 |
| 2024 |  TB/BAL | 28 | 10 | 9 | 3.59 | 165.1 | 134 | 24 | 1.15 | 0 |
| 2025 | BAL | 14 | 6 | 5 | 5.93 | 71.1 | 50 | 13 | 1.42 | 0 |
| 2026 | BAL | 1 | 0 | 0 | 2.45 | 3.2 | 7 | 2 | 1.64 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV