Jeff Jones ERA in 1981

• 2nd-best of Jeff Jones' 5 seasons on file; the best is 2.84 in 1980.
• Up 0.55 from 2.84 in 1980.

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

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Jeff Jones ERA in 1981, 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.
1980	ATH	35	1	3	2.84	44.1	34	26	1.31	5
1981	ATH	33	4	1	3.39	61.0	43	40	1.49	3
1982	ATH	18	3	1	5.11	37.0	18	26	1.89	0
1983	ATH	13	1	1	5.76	29.2	14	8	1.72	0
1984	ATH	13	0	3	3.55	33.0	19	12	1.30	0

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