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.

Marc Rzepczynski 2026 Season · Lancaster Barnstormers

Marc Rzepczynski played in the majors from 2009 to 2018. His career NUT is +1.2, #1,311 of 7,125 pitchers since 1876, and his best season by NUT was 2011 (+0.6). NUT is one number for production against league average: 0.0 is average, and every season is graded against its own league.

Career: 14-27, 3.89 ERA, 409 K in 434.2 IP.

NUT leaderboard · What is NUT?

Marc Rzepczynski Career Stats & NUT | Baseball NUT

Marc Rzepczynski

P · Lancaster Barnstormers

Compare

CAverage

+1.2Career NUT

+0.8 to Good

Career

3.89ERA1.44WHIP14W409K434.2IP2SV

Career · season grades

L/L · 6' 2", 220 lb · b. Aug 29, 1985 · Oak Lawn, IL · Draft 2007 (5th Rd, #175)

Player Overview

Year by Year


2009	23	TOR	+0.1	2	4	3.67	11	11	0	0	0	0	0	261	61.1	51	25	30	1	60	1.32
2010	24	TOR	-0.4	4	4	4.95	14	12	0	0	2	0	0	287	63.2	72	35	30	5	57	1.60
2011	25	TOR	+0.3	2	3	2.97	43	0	6	0	10	3	3	158	39.1	28	13	15	3	33	1.09
2011	25	STL	—	0	3	3.97	28	0	1	0	8	1	1	98	22.2	22	10	11	1	28	1.46
2011	25	TOT	+0.6	2	6	3.34	71	0	7	0	18	4	4	256	62.0	50	23	26	4	61	1.23
2012	26	STL	-0.4	1	3	4.24	70	0	14	0	18	5	5	196	46.2	46	22	17	0	33	1.35
2013	27	STL	—	0	0	7.84	11	0	4	0	0	0	0	50	10.1	16	9	4	1	9	1.94
2013	27	CLE	—	0	0	0.89	27	0	6	0	6	0	0	79	20.1	11	2	6	3	20	0.84
2013	27	TOT	+0.2	0	0	3.23	38	0	10	0	6	0	0	129	30.2	27	11	10	4	29	1.21
2014	28	CLE	+0.5	0	3	2.74	73	0	8	1	14	2	3	196	46.0	42	14	19	3	46	1.33
2015	29	CLE	—	2	3	4.43	45	0	6	0	12	2	2	94	20.1	23	10	10	1	24	1.62
2015	29	SD	—	0	1	7.36	27	0	1	0	4	2	2	64	14.2	17	12	4	2	17	1.43
2015	29	TOT	+0.2	2	4	5.66	72	0	7	0	16	4	4	158	35.0	40	22	14	3	41	1.54
2016	30	OAK	+0.2	1	0	3.00	56	0	15	0	6	1	1	169	36.0	38	12	24	2	37	1.72
2016	30	WSH	—	0	0	1.54	14	0	0	0	5	0	0	46	11.2	8	2	5	2	9	1.11
2016	30	TOT	+0.3	1	0	2.64	70	0	15	0	11	1	1	215	47.2	46	14	29	4	46	1.57
2017	31	SEA	+0.0	2	2	4.02	64	0	6	1	20	2	3	137	31.1	29	14	20	1	25	1.56
2018	32	SEA	—	0	1	9.39	18	0	0	0	3	1	1	47	7.2	13	8	9	0	10	2.87
2018	32	CLE	—	0	0	0.00	5	0	1	0	2	0	0	10	2.2	3	0	1	0	1	1.50
2018	32	TOT	—	0	1	6.97	23	0	1	0	5	1	1	57	10.1	16	8	10	0	11	2.52
Career	—	10 yrs	+1.2	14	27	3.89	506	23	68	2	110	19	21	1892	434.2	419	188	205	25	409	1.44

Stat definitions →

NUT Breakdown

K Ability

HR Prevention

Walk Avoidance

What's driving Rzepczynski's career NUT of +1.2

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

Career NUT Trend

0.6

091011121314151617

NUT by Season

+0.1

-0.4

+0.6

-0.4

+0.2

+0.5

+0.2

+0.3

+0.0

Awards

2010AFL Pitcher of the Week · AFL All-Prospect Team

2011World Series Championship

Minor League

Year	Age	Lv	W	L	ERA	G	GS	GF	SV	HLD	BS	SVO	BF	IP	H	ER	BB	HBP	SO	WHIP
2008	22	A	7	6	2.83	22	22	0	0	0	0	0	491	121.0	100	38	42	8	124	1.17
2009	23	AA	7	5	2.93	14	14	0	0	0	0	0	344	76.2	80	25	36	4	88	1.51
2009	23	AAA	2	0	0.79	2	2	0	0	0	0	0	45	11.1	7	1	4	0	16	0.97
2010	24	AAA	5	5	6.04	12	12	0	0	0	0	0	304	67.0	81	45	27	4	61	1.61
2013	27	AAA	1	2	3.07	32	0	10	0	4	2	2	196	44.0	44	15	18	1	31	1.41
2018	32	AAA	0	0	3.38	6	0	1	0	1	0	0	14	2.2	4	1	3	0	1	2.63
2018	32	AAA	0	0	9.64	12	0	1	0	1	0	0	51	9.1	15	10	8	1	10	2.46
2018	32	AAA	0	0	8.25	18	0	2	0	2	0	0	65	12.0	19	11	11	1	11	2.50
2019	33	AAA	2	4	5.04	45	0	8	1	6	1	2	214	44.2	56	25	28	2	36	1.88

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