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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.

Roger Mason 2026 Season · GCL Pirates

Career: 22-35, 4.02 ERA, 286 K in 416.1 IP.

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Roger Mason Stats & Profile | Baseball NUT

Roger Mason

#48

P · GCL Pirates (PIT)

Compare

DWeak

-0.2Career NUT

+0.2 to Average

Career

4.02ERA1.31WHIP22W286K416.1IP13SV

R/R · 6' 6", 220 lb · b. Sep 18, 1957 · Bellaire, MI · Signed Undrafted FA, 1984

Player Overview

Year by Year


1984	26	DET	—	1	1	4.50	5	2	0	0	2	1	1	97	22.0	23	11	10	0	15	1.50
1985	27	SF	+0.5	1	3	2.12	5	5	1	1	0	0	0	128	29.2	28	7	11	0	26	1.31
1986	28	SF	-0.1	3	4	4.80	11	11	1	0	0	0	0	262	60.0	56	32	30	3	43	1.43
1987	29	SF	-0.1	1	1	4.50	5	5	0	0	0	0	0	110	26.0	30	13	10	0	18	1.54
1989	31	HOU	—	0	0	20.25	2	0	0	0	1	0	0	8	1.1	2	3	2	0	3	3.00
1991	33	PIT	+0.3	3	2	3.03	24	0	0	0	6	3	3	114	29.2	21	10	6	1	21	0.91
1992	34	PIT	-0.7	5	7	4.09	65	0	0	0	26	8	8	374	88.0	80	40	33	4	56	1.28
1993	35	SD	+0.7	0	7	3.24	34	0	0	0	14	0	0	207	50.0	43	18	18	2	39	1.22
1993	35	PHI	-0.5	5	5	4.89	34	0	0	0	15	0	0	210	49.2	47	27	16	0	32	1.27
1993	35	TOT	+0.3	5	12	4.06	68	0	0	0	29	0	0	417	99.2	90	45	34	2	71	1.24
1994	36	PHI	—	1	1	5.19	6	0	0	0	1	0	0	41	8.2	11	5	5	0	7	1.85
1994	36	NYM	-0.2	2	4	3.51	41	0	0	0	11	1	1	215	51.1	44	20	20	2	26	1.25
1994	36	TOT	-0.4	3	5	3.75	47	0	0	0	12	1	1	256	60.0	55	25	25	2	33	1.33
Career	—	9 yrs	-0.2	22	35	4.02	232	23	2	1	76	13	13	1766	416.1	385	186	161	12	286	1.31

Stat definitions →

NUT Breakdown

K Ability

HR Prevention

Walk Avoidance

What's driving Mason's career NUT of -0.2

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

Career NUT Trend

0.5

85868791929394

NUT by Season

+0.5

-0.1

+0.3

-0.7

+0.3

-0.4

Awards

1984World Series Champion*

Minor League

Year	Age	Lv	W	L	ERA	G	GS	CG	SHO	GF	SV	SVO	BF	IP	H	ER	BB	HBP	SO	WHIP
1988	30	AAA	2	9	4.86	19	17	1	0	2	0	0	397	90.2	90	49	38	4	62	1.41
1989	31	AAA	7	12	3.54	25	25	5	1	0	0	0	621	155.0	125	61	46	2	105	1.10
1990	32	AAA	3	5	2.10	29	2	0	0	6	3	3	325	77.0	78	18	25	1	44	1.34
1991	33	AAA	9	5	3.08	34	15	2	1	6	0	0	521	122.2	115	42	44	6	80	1.30

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