Marino Pieretti career ERA

• Best season on file: 3.32 in 1945.
• Most recent: 4.18 in 1950.

Average of 6 regular seasons, 1945 through 1950. Figures come from ESPN's box scores and were last read on September 23, 2026.

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Marino Pieretti 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.
1945	MIN	44	14	13	3.32	233.1	66	91	1.40	2
1946	MIN	30	2	2	5.95	62.0	20	40	1.77	0
1947	MIN	23	2	4	4.21	83.1	32	47	1.73	0
1948	MIN/CHW	29	8	12	5.47	131.2	34	59	1.47	1
1949	CHW	39	4	6	5.51	116.0	25	54	1.59	4
1950	CLE	29	0	1	4.18	47.1	11	30	1.58	1

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