Bob Knepper ERA in 1989

• 13th-best of Bob Knepper's 15 seasons on file; the best is 2.18 in 1981.
• Up 1.99 from 3.14 in 1988.

Figures come from ESPN's box scores and were last read on September 21, 2026.

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Bob Knepper ERA in 1989, 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.
1976	SF	4	1	2	3.24	25.0	11	7	1.32	0
1977	SF	27	11	9	3.36	166.0	100	72	1.34	0
1978	SF	36	17	11	2.63	260.0	147	85	1.17	0
1979	SF	34	9	12	4.64	207.1	123	77	1.53	0
1980	SF	35	9	16	4.10	215.1	103	61	1.41	0
1981	HOU	22	9	5	2.18	156.2	75	38	1.06	0
1982	HOU	33	5	15	4.45	180.0	108	60	1.41	1
1983	HOU	35	6	13	3.19	203.0	125	71	1.34	0
1984	HOU	35	15	10	3.20	233.2	140	55	1.19	0
1985	HOU	37	15	13	3.55	241.0	131	54	1.27	0
1986	HOU	40	17	12	3.14	258.0	143	62	1.14	0
1987	HOU	33	8	17	5.27	177.2	76	54	1.58	0
1988	HOU	27	14	5	3.14	175.0	103	67	1.27	0
1989	HOU/SF	35	7	12	5.13	165.0	64	75	1.61	0
1990	SF	12	3	3	5.68	44.1	24	19	1.69	0

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