Dan Osinski career ERA

• Best season on file: 2.54 in 1967.
• Most recent: 9.82 in 1970.

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

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Dan Osinski career ERA, 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.
1962	ATH/LAA	37	6	4	3.97	59.0	48	38	1.54	4
1963	LAA	47	8	8	3.28	159.1	100	80	1.41	0
1964	LAA	47	3	3	3.48	93.0	88	39	1.35	2
1965	ATL	61	0	3	2.82	83.0	54	40	1.46	6
1966	BOS	44	4	3	3.61	67.1	44	28	1.43	2
1967	BOS	34	3	1	2.54	63.2	38	14	1.18	2
1969	CHW	51	5	5	3.56	60.2	27	23	1.30	2
1970	HOU	3	0	1	9.82	3.2	1	2	1.91	0

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