Tom Underwood career ERA

• Best season on file: 3.29 in 1982.
• Most recent: 3.52 in 1984.

Average of 11 regular seasons, 1974 through 1984. Figures come from ESPN's box scores and were last read on September 23, 2026.

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Tom Underwood 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.
1974	PHI	7	1	0	4.85	13.0	8	5	1.54	0
1975	PHI	35	14	13	4.14	219.1	123	84	1.39	0
1976	PHI	33	10	5	3.53	155.2	94	63	1.39	2
1977	PHI/STL	33	9	11	5.00	133.1	86	75	1.67	1
1978	TOR	31	6	14	4.10	197.2	139	87	1.46	0
1979	TOR	33	9	16	3.69	227.0	127	95	1.36	0
1980	NYY	38	13	9	3.66	187.0	116	66	1.22	2
1981	NYY/ATH	25	4	6	3.66	83.2	75	38	1.28	1
1982	ATH	56	10	6	3.29	153.0	79	68	1.33	7
1983	ATH	51	9	7	4.04	144.2	62	50	1.42	4
1984	BAL	37	1	0	3.52	71.2	39	31	1.52	1

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