Mark Langston career ERA

• Best season on file: 2.74 in 1989.
• Most recent: 5.25 in 1999.

Average of 16 regular seasons, 1984 through 1999. Figures come from ESPN's box scores and were last read on September 21, 2026.

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Mark Langston career ERA, 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.
1984	SEA	35	17	10	3.40	225.0	204	118	1.36	0
1985	SEA	24	7	14	5.47	126.2	72	91	1.68	0
1986	SEA	37	12	14	4.85	239.1	245	123	1.49	0
1987	SEA	35	19	13	3.84	272.0	262	114	1.31	0
1988	SEA	35	15	11	3.34	261.1	235	110	1.27	0
1989	SEA/WSH	34	16	14	2.74	250.0	235	112	1.24	0
1990	LAA	33	10	17	4.40	223.0	195	104	1.43	0
1991	LAA	34	19	8	3.00	246.1	183	96	1.16	0
1992	LAA	32	13	14	3.66	229.0	174	74	1.22	0
1993	LAA	35	16	11	3.20	256.1	196	85	1.19	0
1994	LAA	18	7	8	4.68	119.1	109	54	1.47	0
1995	LAA	31	15	7	4.63	200.1	142	64	1.38	0
1996	LAA	18	6	5	4.82	123.1	83	45	1.31	0
1997	LAA	9	2	4	5.85	47.2	30	29	1.89	0
1998	SD	22	4	6	5.86	81.1	56	41	1.82	0
1999	CLE	25	1	2	5.25	61.2	43	29	1.59	0

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