Grant Balfour ERA in 2015
6.232015 Regular Season
Grant Balfour posted a 6.23 ERA in the 2015 regular season.
- 10th-best of Grant Balfour's 12 seasons on file; the best is 1.54 in 2008.
- Up 1.32 from 4.91 in 2014.
Figures come from ESPN's box scores and were last read on September 23, 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 2001 |  MIN | 2 | 0 | 0 | 13.50 | 2.2 | 2 | 3 | 2.25 | 0 |
| 2003 | MIN | 17 | 1 | 0 | 4.15 | 26.0 | 30 | 14 | 1.42 | 0 |
| 2004 | MIN | 36 | 4 | 1 | 4.35 | 39.1 | 42 | 21 | 1.42 | 0 |
| 2007 |  MIL/TB | 25 | 1 | 2 | 7.66 | 24.2 | 30 | 20 | 2.03 | 0 |
| 2008 | TB | 51 | 6 | 2 | 1.54 | 58.1 | 82 | 24 | 0.89 | 4 |
| 2009 | TB | 73 | 5 | 4 | 4.81 | 67.1 | 69 | 33 | 1.37 | 4 |
| 2010 | TB | 57 | 2 | 1 | 2.28 | 55.1 | 56 | 17 | 1.08 | 0 |
| 2011 |  ATH | 62 | 5 | 2 | 2.47 | 62.0 | 59 | 20 | 1.03 | 2 |
| 2012 | ATH | 75 | 3 | 2 | 2.53 | 74.2 | 72 | 28 | 0.92 | 24 |
| 2013 | ATH | 65 | 1 | 3 | 2.59 | 62.2 | 72 | 27 | 1.20 | 38 |
| 2014 | TB | 65 | 2 | 6 | 4.91 | 62.1 | 57 | 41 | 1.44 | 12 |
| 2015 | TB | 6 | 0 | 0 | 6.23 | 4.1 | 0 | 4 | 1.62 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV