Players · R · Pitcher · 2018 regular season

Marc Rzepczynski

Age: 33
B/T: L/L
Height: 6' 2"
Weight: 220 lb

Born: August 29, 1985 in Oak Lawn, IL, United States
MLB debut: July 7, 2009

dbWAR: 4.2
IP: 10.1
ERA: 6.97
FIP: 6.45
K/9: 9.6
FIP−: 155

Marc Rzepczynski was a relief pitcher for the Seattle Mariners. In 2018 he struck out 11 batters over 10.1 innings across 23 appearances, going 0-1. His ERA of 6.97 was 67.9% higher than the league average of 4.15. Stripping out defence, his 6.45 FIP suggests he pitched better than his ERA shows. He missed bats on 30.9% of swings (13.6% of every pitch he threw), walked 17.5% of the batters he faced and struck out 19.3%. His -0.2 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.

League context

Percentile among qualified pitchers, 2018 regular season.

FIP6.45

K/99.6

WHIP2.52

WAR-.2

WAR by season

Pitching Regular season

Standard and advanced, by season. Regular-season games only — postseason games are listed separately below.


2018	SEA/CLE	23	0	10.1	0	1	0	16	8	11	10	6.97	6.45	2.52	9.6	8.7	168	155	-0.2
2017	SEA	64	0	31.1	2	2	1	29	14	25	20	4.02	4.40	1.56	7.2	5.7	92	101	0.2
2016	OAK/WSH	70	0	47.2	1	0	0	46	14	46	29	2.64	3.57	1.57	8.7	5.5	63	85	0.6
2015	CLE/SD	72	0	35.0	2	4	0	40	22	41	14	5.66	3.36	1.54	10.5	3.6	143	85	0.5
2014	CLE	73	0	46.0	0	3	1	42	14	46	19	2.74	2.85	1.33	9.0	3.7	73	76	0.8
2013	CLE/STL	38	0	30.2	0	0	0	27	11	29	10	3.23	3.37	1.21	8.5	2.9	84	87	0.3
2012	STL	70	0	46.2	1	3	0	46	22	33	17	4.24	4.72	1.35	6.4	3.3	106	118	-0.1
2011	TOR/STL	71	0	62.0	2	6	0	50	23	61	26	3.34	3.14	1.23	8.9	3.8	85	80	1.0
2010	TOR	14	12	63.2	4	4	0	72	35	57	30	4.95	4.57	1.60	8.1	4.2	121	112	0.3
2009	TOR	11	11	61.1	2	4	0	51	25	60	30	3.67	4.14	1.32	8.8	4.4	85	96	0.8

Batting Regular season

Standard and advanced, by season. Regular-season games only — postseason games are listed separately below.

																					Trend
2013	STL	1	1	0	0	0	0	0	1	.000	.000	.000	.000	—	0.0%	100.0%	.000	-0.2	-126	-0.0	—

Separate from the regular season

Postseason Postseason

Wild Card through World Series. These games are counted on their own: none of them are in the regular-season tables, career totals, league context, leaderboards or dbWAR on this page.

Postseason pitching

Postseason Marc Rzepczynski's postseason pitching, by October and round. Not part of any regular-season figure on this page.
Season	Team	Round	G	IP	W	L	H	ER	BB	SO	ERA	WHIP	K/9
2016 Post	WSH	NLDS	3	2.0	0	1	0	1	4	3	4.50	2.00	13.5
2013 Post	CLE	Wild Card	1	0.1	0	0	0	0	0	1	0.00	0.00	27.0
2012 Post	STL	Postseason total	5	2.0	0	0	3	1	1	3	4.50	2.00	13.5
		Wild Card	1	0.1	0	0	1	0	0	0	0.00	3.00	0.0
		NLDS	1	0.1	0	0	1	0	0	1	0.00	3.00	27.0
		NLCS	3	1.1	0	0	1	1	1	2	6.75	1.50	13.5
2011 Post	STL	Postseason total	12	8.1	1	0	7	4	1	9	4.32	0.96	9.7
		NLDS	3	1.0	0	0	4	3	0	1	27.00	4.00	9.0
		NLCS	5	4.2	1	0	1	1	1	4	1.93	0.43	7.7
		World Series	4	2.2	0	0	2	0	0	4	0.00	0.75	13.5
Career		Postseason total · 4 Octobers	21	12.2	1	1	10	6	6	16	4.26	1.26	11.4

Box-score and rate statistics only. wOBA, wRC+, FIP and dbWAR are measured against a full league season, and a postseason is a few teams playing each other for a month, so they are not computed for October.

Platoon splits

How left- and right-handed hitters fare against him.

Season

Opponent batting by the side the hitter bats from, 2018. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
Split	PA	AB	H	HR	BB	SO	AVG	OBP	SLG	wOBA	K%
vs LHB	36	31	8	0	5	9	.258	.361	.387	.338	25.0%
vs RHB	21	16	8	2	5	2	.500	.619	.938	.625	9.5%

Pitch sequencing

What Marc Rzepczynski throws in each count, and what he follows each pitch with. Select any cell for the breakdown.

ShowBatter

SinkerSliderChangeup

Select a count to see exactly what Marc Rzepczynski throws in it.

Pitch arsenal

What he throws, how hard, how often it misses, and what hitters do with it.

Season


Sinker	54.0%	115	91.9	2,057	44.3%	21.2%	27	.370	1.135
Slider	37.1%	79	84.1	2,372	44.3%	48.4%	14	—	—
Changeup	8.9%	19	86.2	1,678	26.3%	27.3%	6	—	—

Marc Rzepczynski's arsenal by usage. Velocity is average release speed in mph, spin in rpm, and whiff rate is misses per swing — the cleanest single measure of whether a pitch beats hitters. BAA and OPS are what hitters did against each pitch, credited to the one that ended the plate appearance, and are left blank under 15 at-bats.

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Marc Rzepczynski

How these are computed

wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.