Bill Swift career ERA

• Best season on file: 1.99 in 1991.
• Most recent: 5.85 in 1998.

Average of 13 regular seasons, 1985 through 1998. Figures come from ESPN's box scores and were last read on September 22, 2026.

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Bill Swift 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.
1985	SEA	23	6	10	4.77	120.2	55	48	1.48	0
1986	SEA	29	2	9	5.46	115.1	55	55	1.76	0
1988	SEA	38	8	12	4.59	174.2	47	65	1.51	0
1989	SEA	37	7	3	4.43	130.0	45	38	1.37	1
1990	SEA	55	6	4	2.39	128.0	42	21	1.22	6
1991	SEA	71	1	2	1.99	90.1	48	26	1.11	17
1992	SF	30	10	4	2.08	164.2	77	43	1.14	1
1993	SF	34	21	8	2.82	232.2	157	55	1.07	0
1994	SF	17	8	7	3.38	109.1	62	31	1.28	0
1995	COL	19	9	3	4.94	105.2	68	43	1.56	0
1996	COL	7	1	1	5.40	18.1	5	5	1.53	2
1997	COL	14	4	6	6.34	65.1	29	26	1.70	0
1998	SEA	29	11	9	5.85	144.2	77	51	1.62	0

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