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The big number is this season's NUT, his total production against league average, with its letter grade. Below that are his season and career lines, recent form over 7, 14 and 30 days, game logs, and percentile ranks against every qualified player. NUT is built on the advanced hitting and pitching stats analysts trust, with defense left out, so the number reflects what the player controls.

Don McMahon 2026 Season · SF

Career: 90-68, 2.96 ERA, 1003 K in 1310.2 IP.

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Don McMahon Stats & Profile | Baseball NUT

Don McMahon

#44

P · SF

Compare

BGood

+2.9Career NUT

+5.1 to Great

Career

2.96ERA1.25WHIP90W1003K1310.2IP153SV

R/R · 6' 2", 220 lb · b. Jan 4, 1930 · Brooklyn, NY · Signed Undrafted FA, 1957

Player Overview

Year by Year


1957	27	MLN	+0.8	2	3	1.54	32	0	19	9	0	0	200	46.2	33	8	29	0	46	1.33
1958	28	MLN	+0.1	7	2	3.68	38	0	28	8	0	0	250	58.2	50	24	29	2	37	1.35
1959	29	MLN	+0.5	5	3	2.57	60	0	49	15	0	0	359	80.2	81	23	37	1	55	1.46
1960	30	MLN	-0.4	3	6	5.94	48	0	27	10	0	0	288	63.2	66	42	32	2	50	1.54
1961	31	MLN	+0.4	6	4	2.84	53	0	32	8	0	0	402	92.0	84	29	51	2	55	1.47
1962	32	MLN	—	0	1	6.00	2	0	2	0	0	0	12	3.0	3	2	0	0	3	1.00
1962	32	HOU	+1.0	5	5	1.53	51	0	40	8	0	0	306	76.2	53	13	33	1	69	1.12
1962	32	TOT	+1.0	5	6	1.69	53	0	42	8	0	0	318	79.2	56	15	33	1	72	1.12
1963	33	HOU	-0.3	1	5	4.05	49	2	26	5	0	0	344	80.0	83	36	26	0	51	1.36
1964	34	CLE	+0.4	6	4	2.41	70	0	39	16	0	0	418	101.0	67	27	52	2	92	1.18
1965	35	CLE	-0.2	3	3	3.28	58	0	31	11	0	0	361	85.0	79	31	37	1	60	1.36
1966	36	CLE	—	1	1	2.92	12	0	5	1	0	0	50	12.1	8	4	6	0	5	1.14
1966	36	BOS	-0.3	8	7	2.65	49	0	26	9	0	0	334	78.0	65	23	38	3	57	1.32
1966	36	TOT	-0.4	9	8	2.69	61	0	31	10	0	0	384	90.1	73	27	44	3	62	1.30
1967	37	BOS	—	1	2	3.57	11	0	6	2	0	0	79	17.2	14	7	13	0	10	1.53
1967	37	CWS	+0.7	5	0	1.67	52	0	14	3	0	0	353	91.2	54	17	27	6	74	0.88
1967	37	TOT	+0.1	6	2	1.98	63	0	20	5	0	0	432	109.1	68	24	40	6	84	0.99
1968	38	CWS	-0.1	2	1	1.96	25	0	5	0	0	0	190	46.0	31	10	20	3	32	1.11
1968	38	DET	+0.4	3	1	2.02	20	0	9	1	0	0	135	35.2	22	8	10	0	33	0.90
1968	38	TOT	+0.4	5	2	1.98	45	0	14	1	0	0	325	81.2	53	18	30	3	65	1.02
1969	39	DET	+0.4	3	5	3.89	34	0	21	11	2	13	153	37.0	25	16	18	1	38	1.16
1969	39	SF	—	3	1	3.04	13	0	8	2	3	5	92	23.2	13	8	9	0	21	0.93
1969	39	TOT	+0.8	6	6	3.56	47	0	29	13	5	18	245	60.2	38	24	27	1	59	1.07
1970	40	SF	+0.1	9	5	2.96	61	0	44	19	5	24	399	94.1	70	31	45	2	74	1.22
1971	41	SF	-0.3	10	6	4.06	61	0	26	4	5	9	356	82.0	73	37	37	7	71	1.34
1972	42	SF	-0.3	3	3	3.71	44	0	27	5	2	7	253	63.0	46	26	21	1	45	1.06
1973	43	SF	+0.5	4	0	1.48	22	0	16	6	0	6	119	30.1	21	5	7	0	20	0.92
1974	44	SF	—	0	0	3.09	9	0	6	0	0	0	50	11.2	13	4	2	0	5	1.29
Career	—	18 yrs	+2.9	90	68	2.96	874	2	506	153	17	65	5503	1310.2	1054	431	579	34	1003	1.25

Stat definitions →

NUT Breakdown

K Ability

HR Prevention

Walk Avoidance

What's driving McMahon's career NUT of +2.9

Slice size = share of total NUT. K Ability = Strikeouts · HR Prevention = HR allowed · Walk Avoidance = BB + HBP.

Career NUT Trend

5758596061626364656667686970717273

NUT by Season

+0.8

+0.1

+0.5

-0.4

+0.4

+1.0

-0.3

+0.4

-0.2

-0.4

+0.1

+0.4

+0.8

+0.1

-0.3

+0.5

Awards

1957World Series Championship

1958NL All-Star

1964Cleveland BBWAA Man of the Year Award

1968World Series Championship

1983Cleveland Frank Gibbons/Steve Olin Good Guy Award

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