John Halama career ERA
4.65Career Regular Season
John Halama has a career ERA of 4.65 over 9 regular seasons.
| 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1998 |  HOU | 6 | 1 | 1 | 5.85 | 32.1 | 21 | 13 | 1.55 | 0 |
| 1999 |  SEA | 38 | 11 | 10 | 4.22 | 179.0 | 105 | 56 | 1.39 | 0 |
| 2000 | SEA | 30 | 14 | 9 | 5.08 | 166.2 | 87 | 56 | 1.57 | 0 |
| 2001 | SEA | 31 | 10 | 7 | 4.73 | 110.1 | 50 | 26 | 1.43 | 0 |
| 2002 | SEA | 31 | 6 | 5 | 3.56 | 101.0 | 70 | 33 | 1.44 | 0 |
| 2003 |  ATH | 35 | 3 | 5 | 4.22 | 108.2 | 51 | 36 | 1.41 | 0 |
| 2004 |  TB | 34 | 7 | 6 | 4.70 | 118.2 | 59 | 27 | 1.36 | 0 |
| 2005 |  BOS/WSH | 40 | 1 | 4 | 5.68 | 65.0 | 37 | 17 | 1.48 | 0 |
| 2006 |  BAL | 17 | 3 | 1 | 6.14 | 29.1 | 12 | 13 | 1.74 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV
- Best season on file: 3.56 in 2002.
- Most recent: 6.14 in 2006.
Average of 9 regular seasons, 1998 through 2006. Figures come from ESPN's box scores and were last read on October 26, 2026.