Tom Glavine career ERA

• Best season on file: 2.47 in 1998.
• Most recent: 5.54 in 2008.

Average of 22 regular seasons, 1987 through 2008. Figures come from ESPN's box scores and were last read on September 21, 2026.

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Tom Glavine 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.
1987	ATL	9	2	4	5.54	50.1	20	33	1.75	0
1988	ATL	34	7	17	4.56	195.1	84	63	1.35	0
1989	ATL	29	14	8	3.68	186.0	90	40	1.14	0
1990	ATL	33	10	12	4.28	214.1	129	78	1.45	0
1991	ATL	34	20	11	2.55	246.2	192	69	1.09	0
1992	ATL	33	20	8	2.76	225.0	129	70	1.19	0
1993	ATL	36	22	6	3.20	239.1	120	90	1.36	0
1994	ATL	25	13	9	3.97	165.1	140	70	1.47	0
1995	ATL	29	16	7	3.08	198.2	127	66	1.25	0
1996	ATL	36	15	10	2.98	235.1	181	85	1.30	0
1997	ATL	33	14	7	2.96	240.0	152	79	1.15	0
1998	ATL	33	20	6	2.47	229.1	157	74	1.20	0
1999	ATL	35	14	11	4.12	234.0	138	83	1.46	0
2000	ATL	35	21	9	3.40	241.0	152	65	1.19	0
2001	ATL	35	16	7	3.57	219.1	116	97	1.41	0
2002	ATL	36	18	11	2.96	224.2	127	78	1.28	0
2003	NYM	32	9	14	4.52	183.1	82	66	1.48	0
2004	NYM	33	11	14	3.60	212.1	109	70	1.29	0
2005	NYM	33	13	13	3.53	211.1	105	61	1.36	0
2006	NYM	32	15	7	3.82	198.0	131	62	1.33	0
2007	NYM	34	13	8	4.45	200.1	89	64	1.41	0
2008	ATL	13	2	4	5.54	63.1	37	37	1.64	0

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