Shigetoshi Hasegawa career ERA
3.70Career Regular Season
Shigetoshi Hasegawa has a career ERA of 3.70 over 9 regular seasons.
- Best season on file: 1.48 in 2003.
- Most recent: 4.19 in 2005.
Average of 9 regular seasons, 1997 through 2005. 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1997 |  LAA | 50 | 3 | 7 | 3.93 | 116.2 | 83 | 46 | 1.41 | 0 |
| 1998 | LAA | 61 | 8 | 3 | 3.14 | 97.1 | 73 | 32 | 1.21 | 5 |
| 1999 | LAA | 64 | 4 | 6 | 4.91 | 77.0 | 44 | 34 | 1.48 | 2 |
| 2000 | LAA | 66 | 10 | 5 | 3.48 | 95.2 | 59 | 38 | 1.44 | 9 |
| 2001 | LAA | 46 | 5 | 6 | 4.04 | 55.2 | 41 | 20 | 1.29 | 0 |
| 2002 |  SEA | 53 | 8 | 3 | 3.20 | 70.1 | 39 | 30 | 1.28 | 1 |
| 2003 | SEA | 63 | 2 | 4 | 1.48 | 73.0 | 32 | 18 | 1.10 | 16 |
| 2004 | SEA | 68 | 4 | 6 | 5.16 | 68.0 | 46 | 31 | 1.44 | 0 |
| 2005 | SEA | 46 | 1 | 3 | 4.19 | 66.2 | 30 | 16 | 1.23 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV