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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.

Al Nipper 2026 Season · Louisville Redbirds

Career: 46-50, 4.52 ERA, 381 K in 797.2 IP.

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Al Nipper Stats & Profile | Baseball NUT

Al Nipper

#49

P · Louisville Redbirds (STL)

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-6.1Career NUT

+4.1 to Weak

Career

4.52ERA1.44WHIP46W381K797.2IP1SV

R/R · 6' 0", 190 lb · b. Apr 2, 1959 · San Diego, CA · Draft 1980 (8th Rd, #206)

Player Overview

Year by Year


1983	24	BOS	—	1	1	2.25	3	2	1	1	0	0	67	16.0	17	4	7	1	5	1.50
1984	25	BOS	-0.6	11	6	3.89	29	24	6	3	0	0	777	182.2	183	79	52	7	84	1.29
1985	26	BOS	-1.0	9	12	4.06	25	25	5	0	0	0	713	162.0	157	73	82	9	85	1.48
1986	27	BOS	-1.3	10	12	5.38	26	26	3	0	0	0	702	159.0	186	95	47	4	79	1.47
1987	28	BOS	-1.9	11	12	5.43	30	30	6	0	0	0	777	174.0	196	105	62	7	89	1.48
1988	29	CHC	-1.2	2	4	3.04	22	12	0	3	1	1	341	80.0	72	27	34	3	27	1.33
1990	31	CLE	—	2	3	6.75	9	5	0	1	0	0	125	24.0	35	18	19	2	12	2.25
Career	—	7 yrs	-6.1	46	50	4.52	144	124	21	8	1	1	3502	797.2	846	401	303	33	381	1.44

Stat definitions →

NUT Breakdown

K Ability

HR Prevention

Walk Avoidance

What's driving Nipper's career NUT of -6.1

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

Career NUT Trend

-0.6

8485868788

NUT by Season

-0.6

-1.0

-1.3

-1.9

-1.2

Awards

1984AL Player of the Week

Minor League

Year	Age	Lv	W	L	ERA	G	GS	CG	SHO	GF	SV	HLD	BS	SVO	BF	IP	H	ER	BB	HBP	SO	WHIP
1990	31	AAA	5	5	4.74	17	16	1	0	1	1	0	0	1	392	89.1	80	47	56	5	47	1.52
1991	32	AAA	0	3	5.72	5	5	0	0	0	0	0	0	0	122	28.1	36	18	9	2	10	1.59

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