Joe Borowski career ERA
4.18Career Regular Season
Joe Borowski has a career ERA of 4.18 over 12 regular seasons.
- Best season on file: 1.23 in 1995.
- Most recent: 7.56 in 2008.
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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1995 |  BAL | 6 | 0 | 0 | 1.23 | 7.1 | 3 | 4 | 1.23 | 0 |
| 1996 |  ATL | 22 | 2 | 4 | 4.85 | 26.0 | 15 | 13 | 1.77 | 0 |
| 1997 |  ATL/NYY | 21 | 2 | 3 | 4.15 | 26.0 | 8 | 20 | 1.88 | 0 |
| 1998 | NYY | 8 | 1 | 0 | 6.52 | 9.2 | 7 | 4 | 1.55 | 0 |
| 2001 |  CHC | 1 | 0 | 1 | 32.40 | 1.2 | 1 | 3 | 5.40 | 0 |
| 2002 | CHC | 73 | 4 | 4 | 2.73 | 95.2 | 97 | 29 | 1.18 | 2 |
| 2003 | CHC | 68 | 2 | 2 | 2.63 | 68.1 | 66 | 19 | 1.05 | 33 |
| 2004 | CHC | 22 | 2 | 4 | 8.02 | 21.1 | 17 | 15 | 1.97 | 9 |
| 2005 |  CHC/TB | 43 | 1 | 5 | 4.47 | 46.1 | 27 | 12 | 1.08 | 0 |
| 2006 |  MIA | 72 | 3 | 3 | 3.75 | 69.2 | 64 | 33 | 1.38 | 36 |
| 2007 |  CLE | 69 | 4 | 5 | 5.07 | 65.2 | 58 | 17 | 1.43 | 45 |
| 2008 | CLE | 18 | 1 | 3 | 7.56 | 16.2 | 9 | 8 | 1.92 | 6 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV