Mark Leiter Jr. career ERA
4.57Career Regular Season
Mark Leiter Jr. has a career ERA of 4.57 over 7 regular seasons.
- Best season on file: 3.50 in 2023.
- Most recent: 4.28 in 2026.
Average of 7 regular seasons, 2017 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 2017 |  PHI | 27 | 3 | 6 | 4.96 | 90.2 | 84 | 31 | 1.33 | 0 |
| 2018 |  PHI/TOR | 20 | 0 | 1 | 7.71 | 23.1 | 22 | 12 | 2.01 | 0 |
| 2022 |  CHC | 35 | 2 | 7 | 3.99 | 67.2 | 73 | 25 | 1.14 | 3 |
| 2023 | CHC | 69 | 1 | 3 | 3.50 | 64.1 | 77 | 24 | 1.12 | 4 |
| 2024 |  CHC/NYY | 60 | 4 | 5 | 4.50 | 58.0 | 86 | 22 | 1.33 | 0 |
| 2025 | NYY | 59 | 6 | 7 | 4.84 | 48.1 | 54 | 17 | 1.53 | 2 |
| 2026 |  ATH | 36 | 0 | 1 | 4.28 | 33.2 | 38 | 11 | 1.31 | 4 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV