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.

Charlie Kerfeld 2026 Season · London Tigers

Career: 18-9, 4.20 ERA, 155 K in 201.2 IP.

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Charlie Kerfeld Stats & Profile | Baseball NUT

Charlie Kerfeld

#37

P · London Tigers (DET)

Compare

CAverage

+0.5Career NUT

+1.5 to Good

Career

4.20ERA1.52WHIP18W155K201.2IP9SV

R/R · 6' 6", 225 lb · b. Sep 28, 1963 · Knob Noster, MO · Draft 1982 (1st Rd, #3)

Player Overview

Year by Year


1985	21	HOU	+0.1	4	2	4.06	11	6	2	0	0	193	44.1	44	20	25	0	30	1.56
1986	22	HOU	+0.8	11	2	2.59	61	0	29	7	7	390	93.2	71	27	42	2	77	1.21
1987	23	HOU	-0.3	0	2	6.67	21	0	11	0	0	137	29.2	34	22	21	1	17	1.85
1990	26	HOU	—	0	2	16.20	5	0	1	0	0	25	3.1	9	6	6	0	4	4.50
1990	26	ATL	-0.1	3	1	5.58	25	0	10	2	2	143	30.2	31	19	23	0	27	1.76
1990	26	TOT	-0.2	3	3	6.62	30	0	11	2	2	168	34.0	40	25	29	0	31	2.03
Career	—	4 yrs	+0.5	18	9	4.20	123	6	53	9	9	888	201.2	189	94	117	3	155	1.52

Stat definitions →

NUT Breakdown

K Ability

HR Prevention

Walk Avoidance

What's driving Kerfeld's career NUT of +0.5

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

Career NUT Trend

0.8

85868790

NUT by Season

+0.1

+0.8

-0.3

-0.2

Minor League

Year	Age	Lv	W	L	ERA	G	GS	CG	GF	SV	SVO	BF	IP	H	ER	BB	HBP	SO	WHIP
1988	24	AA	2	7	4.50	13	12	1	0	0	0	270	64.0	63	32	21	3	63	1.31
1989	25	A+	0	0	1.17	5	0	0	2	0	0	27	7.2	4	1	3	0	8	0.91
1989	25	AAA	3	11	5.52	53	0	0	31	4	4	366	73.1	89	45	55	1	77	1.96
1990	26	AAA	2	0	3.38	15	1	0	6	0	0	99	21.1	22	8	16	0	24	1.78
1991	27	AA	1	1	3.12	11	1	0	5	2	2	69	17.1	9	6	11	0	18	1.15

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