How to read this player page

The big number is his career NUT, his total production against league average, with its letter grade. This season's NUT sits just below it, followed by 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.

Kelvin Herrera 2026 Season · CHC

Kelvin Herrera is a free agent pitcher. His career NUT is +4.2, #570 of 7,125 pitchers since 1876, and his best season by NUT was 2016 (+1.4). NUT is one number for production against league average: 0.0 is average, and every season is graded against its own league.

Career: 27-32, 3.21 ERA, 510 K in 513.2 IP.

NUT leaderboard · What is NUT?

Kelvin Herrera Career Stats & NUT | Baseball NUT

Kelvin Herrera

P · Free agent

Compare

BGood

+4.2Career NUT

+3.8 to Great

Career

3.21ERA1.20WHIP27W510K513.2IP61SV

Career · season grades

R/R · 5' 10", 220 lb · b. Dec 31, 1989 · Tenares, Dominican Republic · Signed International FA, 2011

Player Overview

Year by Year


2011	21	KC	—	0	1	13.50	2	0	0	1	0	0	9	2.0	2	3	0	1	0	1.00
2012	22	KC	+1.3	4	3	2.35	76	10	3	19	1	4	344	84.1	79	22	21	2	77	1.19
2013	23	KC	+0.1	5	7	3.86	59	16	2	20	2	4	245	58.1	48	25	21	2	74	1.18
2014	24	KC	+0.9	4	3	1.41	70	12	0	20	1	1	285	70.0	54	11	26	3	59	1.14
2015	25	KC	+0.4	4	3	2.71	72	8	0	21	7	7	286	69.2	52	21	26	2	64	1.12
2016	26	KC	+1.4	2	6	2.75	72	23	12	26	3	15	283	72.0	57	22	12	3	86	0.96
2017	27	KC	+0.0	3	3	4.25	64	48	26	4	5	31	259	59.1	60	28	20	1	56	1.35
2018	28	KC	+0.4	1	1	1.05	27	21	14	0	2	16	95	25.2	19	3	2	0	22	0.82
2018	28	WSH	—	1	2	4.34	21	11	3	2	0	3	89	18.2	24	9	8	1	16	1.71
2018	28	TOT	+0.1	2	3	2.44	48	32	17	2	2	19	184	44.1	43	12	10	1	38	1.20
2019	29	CWS	+0.0	3	3	6.14	57	16	1	6	2	3	235	51.1	60	35	23	1	53	1.62
2020	30	CWS	—	0	0	15.43	2	1	0	0	0	0	11	2.1	3	4	1	0	3	1.71
Career	—	10 yrs	+4.2	27	32	3.21	522	166	61	119	23	84	2141	513.2	458	183	160	16	510	1.20

Stat definitions →

NUT Breakdown

K Ability

HR Prevention

Walk Avoidance

What's driving Herrera's career NUT of +4.2

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

Career NUT Trend

1.4

1213141516171819

NUT by Season

+1.3

+0.1

+0.9

+0.4

+1.4

+0.0

+0.1

+0.0

Awards

2011TEX Mid-Season All-Star · Futures Game Selection · MiLB.com Organization All-Star

2012Baseball America Major League All-Rookie Team

2015AL All-Star · World Series Championship

2016AL All-Star

Minor League

Year	Age	Lv	W	L	ERA	G	GS	GF	SV	HLD	BS	SVO	BF	IP	H	ER	BB	HBP	SO	WHIP
2008	18	A	2	0	2.13	3	1	1	0	0	0	0	53	12.2	13	3	2	1	7	1.18
2009	19	A	1	0	0.00	1	1	0	0	0	0	0	17	5.0	3	0	0	0	1	0.60
2010	20	A	2	3	4.35	8	8	0	0	0	0	0	173	41.1	38	20	15	4	40	1.28
2011	21	A+	2	1	0.61	8	0	6	1	1	0	1	53	14.2	8	1	2	0	12	0.68
2011	21	AA	4	0	1.75	23	0	17	7	1	3	10	138	36.0	22	7	6	1	40	0.78
2011	21	AAA	1	0	2.12	14	0	10	6	3	0	6	70	17.0	12	4	7	0	18	1.12
2013	23	AA	0	0	0.00	2	0	0	0	1	0	0	7	2.0	1	0	0	0	5	0.50
2013	23	AAA	0	1	1.13	10	3	7	2	0	0	2	62	16.0	6	2	6	2	22	0.75
2019	29	AAA	0	1	12.00	3	1	0	0	0	0	0	14	3.0	5	4	0	0	2	1.67

MVP, Cy Young and every 2026 award winner, graded by NUT. Free.

Plus the winter’s signings and trades. Next: Mon, Nov 16.

Free · About 1 email a month · Unsubscribe anytimeSee the latest report→