Jack Morris ERA in 1991

• 7th-best of Jack Morris' 18 seasons on file; the best is 3.05 in 1981.
• Down 1.08 from 4.51 in 1990.

Lowest of 18 regular seasons, 1977 through 1994. Figures come from ESPN's box scores and were last read on September 22, 2026.

CopyCSV

Jack Morris ERA in 1991, 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.
1977	DET	7	1	1	3.72	46.0	28	23	1.33	0
1978	DET	28	3	5	4.33	106.0	48	49	1.47	0
1979	DET	27	17	7	3.27	198.0	113	59	1.20	0
1980	DET	36	16	15	4.18	250.0	112	87	1.36	0
1981	DET	25	14	7	3.05	198.0	97	78	1.17	0
1982	DET	37	17	16	4.06	266.1	135	96	1.29	0
1983	DET	37	20	13	3.34	293.2	232	83	1.16	0
1984	DET	35	19	11	3.60	240.1	148	87	1.28	0
1985	DET	35	16	11	3.33	257.0	191	110	1.25	0
1986	DET	35	21	8	3.27	267.0	223	82	1.16	0
1987	DET	34	18	11	3.38	266.0	208	93	1.20	0
1988	DET	34	15	13	3.94	235.0	168	83	1.31	0
1989	DET	24	6	14	4.86	170.1	115	59	1.46	0
1990	DET	36	15	18	4.51	249.2	162	97	1.31	0
1991	MIN	35	18	12	3.43	246.2	163	92	1.29	0
1992	TOR	34	21	6	4.04	240.2	132	80	1.25	0
1993	TOR	27	7	12	6.19	152.2	103	65	1.66	0
1994	CLE	23	10	6	5.60	141.1	100	67	1.63	0

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