Sun-Woo Kim career ERA
5.31Career Regular Season
Sun-Woo Kim has a career ERA of 5.31 over 6 regular seasons.
- Best season on file: 4.58 in 2004.
- Most recent: 12.51 in 2006.
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 |  BOS | 20 | 0 | 2 | 5.83 | 41.2 | 27 | 21 | 1.80 | 0 |
| 2002 |  BOS/WSH | 19 | 3 | 0 | 4.74 | 49.1 | 29 | 14 | 1.34 | 0 |
| 2003 | WSH | 4 | 0 | 1 | 8.36 | 14.0 | 5 | 8 | 2.29 | 0 |
| 2004 | WSH | 43 | 4 | 6 | 4.58 | 135.2 | 87 | 55 | 1.47 | 0 |
| 2005 |  WSH/COL | 24 | 6 | 3 | 4.90 | 82.2 | 55 | 21 | 1.43 | 0 |
| 2006 |  COL/CIN | 8 | 0 | 1 | 12.51 | 13.2 | 8 | 8 | 2.34 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV