Jeff Niemann career ERA
4.08Career Regular Season
Jeff Niemann has a career ERA of 4.08 over 5 regular seasons.
- Best season on file: 3.08 in 2012.
Average of 5 regular seasons, 2008 through 2012. 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 2008 |  TB | 5 | 2 | 2 | 5.06 | 16.0 | 14 | 8 | 1.63 | 0 |
| 2009 | TB | 31 | 13 | 6 | 3.94 | 180.2 | 125 | 59 | 1.35 | 0 |
| 2010 | TB | 30 | 12 | 8 | 4.39 | 174.1 | 131 | 61 | 1.26 | 0 |
| 2011 | TB | 23 | 11 | 7 | 4.06 | 135.1 | 105 | 37 | 1.24 | 0 |
| 2012 | TB | 8 | 2 | 3 | 3.08 | 38.0 | 34 | 12 | 1.11 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV