Ken Dayley ERA in 1989

• 5th-best of Ken Dayley's 11 seasons on file; the best is 0.00 in 1993.
• Up 0.10 from 2.77 in 1988.

Figures come from ESPN's box scores and were last read on September 22, 2026.

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Ken Dayley 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.
1982	ATL	20	5	6	4.54	71.1	34	25	1.46	0
1983	ATL	24	5	8	4.30	104.2	70	39	1.33	0
1984	ATL/STL	7	0	5	7.99	23.2	10	11	2.32	0
1985	STL	57	4	4	2.76	65.1	62	18	1.27	11
1986	STL	31	0	3	3.26	38.2	33	11	1.37	5
1987	STL	53	9	5	2.66	61.0	63	33	1.39	4
1988	STL	54	2	7	2.77	55.1	38	19	1.21	5
1989	STL	71	4	3	2.87	75.1	40	30	1.23	12
1990	STL	58	4	4	3.56	73.1	51	30	1.27	2
1991	TOR	8	0	0	6.23	4.1	3	5	2.77	0
1993	TOR	2	0	0	0.00	0.2	2	4	7.50	0

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