Bill Monbouquette career ERA

• Best season on file: 2.33 in 1967.
• Most recent: 4.34 in 1968.

Average of 11 regular seasons, 1958 through 1968. Figures come from ESPN's box scores and were last read on September 23, 2026.

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Bill Monbouquette 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.
1958	BOS	10	3	4	3.31	54.1	30	20	1.33	0
1959	BOS	34	7	7	4.15	151.2	87	33	1.31	0
1960	BOS	35	14	11	3.64	215.0	134	68	1.33	0
1961	BOS	32	14	14	3.39	236.1	161	100	1.41	0
1962	BOS	35	15	13	3.33	235.1	153	65	1.24	0
1963	BOS	37	20	10	3.81	266.2	174	42	1.13	0
1964	BOS	36	13	14	4.04	234.0	120	40	1.27	1
1965	BOS	35	10	18	3.70	228.2	110	40	1.22	0
1966	DET	30	7	8	4.73	102.2	61	22	1.38	0
1967	DET/NYY	35	6	5	2.33	135.1	55	17	1.03	1
1968	NYY/SF	24	5	8	4.34	101.2	37	15	1.16	1

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