Tommy John ERA in 1984

• 24th-best of Tommy John's 26 seasons on file; the best is 1.98 in 1968.
• Up 0.19 from 4.33 in 1983.

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

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Tommy John ERA in 1984, 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.
1963	CLE	6	0	2	2.21	20.1	9	6	1.43	0
1964	CLE	25	2	9	3.91	94.1	65	35	1.40	0
1965	CHW	39	14	7	3.09	183.2	126	58	1.20	3
1966	CHW	34	14	11	2.62	223.0	138	57	1.13	0
1967	CHW	31	10	13	2.47	178.1	110	47	1.07	0
1968	CHW	25	10	5	1.98	177.1	117	49	1.04	0
1969	CHW	33	9	11	3.25	232.1	128	90	1.38	0
1970	CHW	37	12	17	3.27	269.1	138	101	1.31	0
1971	CHW	38	13	16	3.61	229.1	131	58	1.32	0
1972	LAD	29	11	5	2.89	186.2	117	40	1.14	0
1973	LAD	36	16	7	3.10	218.0	116	50	1.16	0
1974	LAD	22	13	3	2.59	153.0	78	42	1.14	0
1976	LAD	31	10	10	3.09	207.0	91	61	1.29	0
1977	LAD	31	20	7	2.78	220.1	123	50	1.25	0
1978	LAD	33	17	10	3.30	213.0	124	53	1.33	1
1979	NYY	37	21	9	2.96	276.1	111	65	1.21	0
1980	NYY	36	22	9	3.43	265.1	78	56	1.23	0
1981	NYY	20	9	8	2.63	140.1	50	39	1.24	0
1982	NYY/LAA	37	14	12	3.69	221.2	68	39	1.25	0
1983	LAA	34	11	13	4.33	234.2	65	49	1.43	0
1984	LAA	32	7	13	4.52	181.1	47	56	1.54	0
1985	LAA/ATH	23	4	10	5.53	86.1	25	28	1.68	0
1986	NYY	13	5	3	2.93	70.2	28	15	1.25	0
1987	NYY	33	13	6	4.03	187.2	63	47	1.38	0
1988	NYY	35	9	8	4.49	176.1	81	46	1.51	0
1989	NYY	10	2	7	5.80	63.2	18	22	1.71	0

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