Jim Duffalo ERA in 1965

• 3rd-best of Jim Duffalo's 5 seasons on file; the best is 2.87 in 1963.
• Up 0.71 from 2.92 in 1964.

Average of 5 regular seasons, 1961 through 1965. Figures come from ESPN's box scores and were last read on September 22, 2026.

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Jim Duffalo ERA in 1965, 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.
1961	SF	24	5	1	4.23	61.2	37	32	1.48	1
1962	SF	24	1	2	3.64	42.0	29	23	1.55	0
1963	SF	34	4	2	2.87	75.1	55	37	1.23	2
1964	SF	35	5	1	2.92	74.0	55	31	1.19	3
1965	SF/CIN	24	0	2	3.63	44.2	34	32	1.48	0

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