How to read this player page

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.

Jack Armstrong 2026 Season · Brevard County Manatees

Career: 40-65, 4.58 ERA, 510 K in 786.2 IP.

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Jack Armstrong Stats & Profile | Baseball NUT

Jack Armstrong

#40

P · Brevard County Manatees (MIA)

Compare

FBad

-5.4Career NUT

+3.4 to Weak

Career

4.58ERA1.43WHIP40W510K786.2IP

R/R · 6' 5", 215 lb · b. Mar 7, 1965 · Englewood, NJ · Draft 1986 (3rd Rd, #58)

Player Overview

Year by Year


1988	23	CIN	-0.8	4	7	5.79	14	13	0	0	0	293	65.1	63	42	38	0	45	1.55
1989	24	CIN	-0.5	2	3	4.64	9	8	0	0	1	187	42.2	40	22	21	0	23	1.43
1990	25	CIN	+1.0	12	9	3.42	29	27	2	1	1	704	166.0	151	63	59	6	110	1.27
1991	26	CIN	-1.9	7	13	5.48	27	24	1	0	1	611	139.2	158	85	54	2	93	1.52
1992	27	CLE	-1.4	6	15	4.64	35	23	1	0	5	735	166.2	176	86	67	3	114	1.46
1993	28	FLA	-1.8	9	17	4.49	36	33	0	0	2	879	196.1	210	98	78	7	118	1.47
1994	29	TEX	—	0	1	3.60	2	2	0	0	0	41	10.0	9	4	2	0	7	1.10
Career	—	7 yrs	-5.4	40	65	4.58	152	130	4	1	10	3450	786.2	807	400	319	18	510	1.43

Stat definitions →

NUT Breakdown

K Ability

HR Prevention

Walk Avoidance

What's driving Armstrong's career NUT of -5.4

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

Career NUT Trend

888990919293

NUT by Season

-0.8

-0.5

+1.0

-1.9

-1.4

-1.8

Awards

1990NL Pitcher of the Month · NL All-Star · World Series Championship

Minor League

Year	Age	Lv	W	L	ERA	G	GS	CG	SHO	BF	IP	H	ER	BB	HBP	SO	WHIP
1988	23	AAA	5	5	3.00	17	17	4	1	476	120.0	84	40	38	2	116	1.02
1989	24	AAA	13	9	2.91	25	24	12	6	738	182.2	144	59	58	6	152	1.11
1991	26	AAA	2	0	2.65	6	6	2	0	143	37.1	31	11	5	1	28	0.96
2000	35	A+	1	1	6.35	4	4	0	0	70	17.0	15	12	6	3	13	1.24

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