Jay Aldrich ERA in 1990

• Jay Aldrich's highest ERA of the 3 seasons on file; the best is 3.29 in 1989.
• Up 4.96 from 3.29 in 1989.

Best of 3 regular seasons, 1987 through 1990. Figures come from ESPN's box scores and were last read on September 22, 2026.

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Jay Aldrich ERA in 1990, 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	MIL	31	3	1	4.94	58.1	22	13	1.44	0
1989	MIL/ATL	24	2	2	3.29	38.1	19	19	1.30	1
1990	BAL	7	1	2	8.25	12.0	5	7	2.00	1

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