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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.

Walt Masterson 2026 Season · DET

Career: 78-100, 4.15 ERA, 815 K in 1649.2 IP.

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Walt Masterson Stats & Profile | Baseball NUT

Walt Masterson

#35

P · DET

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-2.4Career NUT

+0.4 to Weak

Career

4.15ERA1.51WHIP78W815K1649.2IP20SV

R/R · 6' 2", 189 lb · b. Jun 22, 1920 · Philadelphia, PA · Signed Undrafted FA, 1939

Player Overview

Year by Year


1939	19	WSH	-0.9	2	2	5.55	24	5	1	0	14	0	287	58.1	66	36	48	2	12	1.95
1940	20	WSH	-0.6	3	13	4.90	31	19	3	0	9	2	601	130.1	128	71	88	3	68	1.66
1941	21	WSH	-0.4	4	3	5.97	34	6	1	0	13	3	376	78.1	101	52	53	1	40	1.97
1942	22	WSH	+0.3	5	9	3.34	25	15	8	4	7	2	618	142.2	138	53	54	2	63	1.35
1945	25	WSH	+0.1	1	2	1.08	4	2	1	1	1	0	104	25.0	21	3	10	0	14	1.24
1946	26	WSH	-1.2	5	6	6.01	29	9	2	0	11	1	435	91.1	105	61	67	3	61	1.88
1947	27	WSH	+1.7	12	16	3.13	35	31	14	4	4	1	1035	253.0	215	88	97	2	135	1.23
1948	28	WSH	-1.5	8	15	3.83	33	27	9	2	4	2	829	188.0	171	80	122	4	72	1.56
1949	29	WSH	-0.1	3	2	3.23	10	7	3	0	1	0	219	53.0	42	19	21	3	17	1.19
1949	29	BOS	+0.0	3	4	4.25	18	5	1	0	7	4	244	55.0	58	26	35	0	19	1.69
1949	29	TOT	-0.1	6	6	3.75	28	12	4	0	8	4	463	108.0	100	45	56	3	36	1.44
1950	30	BOS	-1.0	8	6	5.64	33	15	6	0	7	1	596	129.1	145	81	82	1	60	1.76
1951	31	BOS	+0.7	3	0	3.34	30	1	0	0	10	2	266	59.1	53	22	32	0	39	1.43
1952	32	BOS	—	1	1	11.57	5	1	0	0	0	0	57	9.1	18	12	11	0	3	3.11
1952	32	WSH	+0.2	9	8	3.70	24	21	11	0	2	2	686	160.2	153	66	72	3	89	1.40
1952	32	TOT	-0.1	10	9	4.13	29	22	11	0	2	2	743	170.0	171	78	83	3	92	1.49
1953	33	WSH	+0.5	10	12	3.63	29	20	10	4	7	0	697	166.1	145	67	62	3	95	1.24
1956	36	DET	+0.1	1	1	4.17	35	0	0	0	18	0	231	49.2	54	23	32	1	28	1.73
Career	—	14 yrs	-2.4	78	100	4.15	399	184	70	15	115	20	7281	1649.2	1613	760	886	28	815	1.51

Stat definitions →

NUT Breakdown

K Ability

HR Prevention

Walk Avoidance

What's driving Masterson's career NUT of -2.4

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

Career NUT Trend

1.7

3940414245464748495051525356

NUT by Season

-0.9

-0.6

-0.4

+0.3

+0.1

-1.2

+1.7

-1.5

-0.1

-1.0

+0.7

-0.1

+0.5

+0.1

Awards

1947AL All-Star

1948AL All-Star

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