Keith Atherton ERA in 1989

• 4th-best of Keith Atherton's 7 seasons on file; the best is 2.77 in 1983.
• Up 0.74 from 3.41 in 1988.

Average of 7 regular seasons, 1983 through 1989. Figures come from ESPN's box scores and were last read on September 21, 2026.

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Keith Atherton ERA in 1989, 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.
1983	ATH	29	2	5	2.77	68.1	40	23	1.11	4
1984	ATH	57	7	6	4.33	104.0	58	39	1.43	2
1985	ATH	56	4	7	4.30	104.2	77	42	1.25	3
1986	ATH/MIN	60	6	10	4.08	97.0	67	46	1.51	10
1987	MIN	59	7	5	4.54	79.1	51	30	1.40	2
1988	MIN	49	7	5	3.41	74.0	43	22	1.18	3
1989	CLE	32	0	3	4.15	39.0	13	13	1.56	2

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