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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.

Jeff Pfeffer 2026 Season · PIT

Career: 158-112, 2.77 ERA, 836 K in 2407.1 IP.

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Jeff Pfeffer Stats & Profile | Baseball NUT

Jeff Pfeffer

P · PIT

Compare

BGood

+2.9Career NUT

+5.1 to Great

Career

2.77ERA1.21WHIP158W836K2407.1IP10SV

R/R · 6' 3", 210 lb · b. Mar 4, 1888 · Seymour, IL · Signed Undrafted FA, 1911

Player Overview

Year by Year


1911	23	SLB	—	0	0	7.20	2	0	0	0	2	0	41	10.0	11	8	4	0	4	1.50
1913	25	BRO	—	0	1	3.33	5	2	1	0	2	0	114	24.1	28	9	13	4	13	1.68
1914	26	BRO	+0.1	23	12	1.97	43	34	27	3	11	4	1268	315.0	264	69	91	7	135	1.13
1915	27	BRO	-0.9	19	14	2.10	40	34	26	6	6	3	1177	291.2	243	68	76	17	84	1.09
1916	28	BRO	+1.1	25	11	1.92	41	36	30	6	3	1	1298	328.2	274	70	63	17	128	1.03
1917	29	BRO	+0.6	11	15	2.23	30	30	24	3	0	0	1081	266.0	225	66	66	16	115	1.09
1918	30	BRO	—	1	0	0.00	1	1	1	1	0	0	31	9.0	2	0	3	0	1	0.56
1919	31	BRO	+0.8	17	13	2.66	30	30	26	4	0	0	1099	267.0	270	79	49	12	92	1.19
1920	32	BRO	+1.1	16	9	3.01	30	28	20	2	2	0	898	215.0	225	72	45	5	80	1.26
1921	33	BRO	+0.1	1	5	4.55	6	5	2	0	1	0	135	31.2	36	16	9	1	8	1.42
1921	33	STL	-0.1	9	3	4.29	18	13	7	1	4	0	426	98.2	115	47	28	5	22	1.45
1921	33	TOT	+0.0	10	8	4.35	24	18	9	1	5	0	561	130.1	151	63	37	6	30	1.44
1922	34	STL	+0.7	19	12	3.55	44	32	19	1	6	2	1124	261.1	286	103	58	11	83	1.32
1923	35	STL	-0.3	8	9	4.02	26	18	7	1	4	0	667	152.1	171	68	40	9	32	1.39
1924	36	STL	-0.2	4	5	5.31	16	12	3	0	2	0	357	78.0	102	46	30	1	20	1.69
1924	36	PIT	+0.0	5	3	3.07	15	4	1	0	8	0	252	58.2	68	20	17	0	19	1.45
1924	36	TOT	-0.2	9	8	4.35	31	16	4	0	10	0	609	136.2	170	66	47	1	39	1.59
Career	—	13 yrs	+2.9	158	112	2.77	347	279	194	28	51	10	9968	2407.1	2320	741	592	105	836	1.21

Stat definitions →

NUT Breakdown

K Ability

HR Prevention

Walk Avoidance

What's driving Pfeffer's career NUT of +2.9

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

Career NUT Trend

1.1

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NUT by Season

+0.1

-0.9

+1.1

+0.6

+0.8

+1.1

+0.0

+0.7

-0.3

-0.2

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