Billy Koch ERA in 2004

• 4th-best of Billy Koch's 6 seasons on file; the best is 2.63 in 2000.
• Down 1.36 from 5.77 in 2003.

Average of 6 regular seasons, 1999 through 2004. Figures come from ESPN's box scores and were last read on September 22, 2026.

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Billy Koch ERA in 2004, season by season

Season↓	Team↓	GP↓iGP: Games the player appeared in, however briefly.	W↓iW: Games in which this pitcher was credited with the win.	L↓iL: Games in which this pitcher was charged with the loss.	ERA↓iERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent.	IP↓iIP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs.	K↓iK: Batters this pitcher struck out.	BB↓iBB: Times the batter reached first base on four balls.	WHIP↓iWHIP: Walks and hits allowed per inning pitched — lower is better. Around 1.00 is elite.	SV↓iSV: Games finished by protecting a narrow lead to the last out.
1999	TOR	56	0	5	3.39	63.2	57	30	1.34	31
2000	TOR	68	9	3	2.63	78.2	60	18	1.22	33
2001	TOR	69	2	5	4.80	69.1	55	33	1.47	36
2002	ATH	84	11	4	3.27	93.2	93	46	1.27	44
2003	CHW	55	5	5	5.77	53.0	42	28	1.64	11
2004	CHW/MIA	47	2	3	4.41	49.0	50	36	1.65	8

What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV