MLB / Players

Justin Masterson

HandednessBats Right · Throws Right

Listed at6 ft 6 in · 260 lb

BornMarch 22, 1985 · Kingston, Kingston, Jamaica

MLB debutApril 24, 2008

Final gameAugust 9, 2015

Seasons8 (2008–2015)

Boston Red Sox 2008–2009; Cleveland Indians 2009–2014; St. Louis Cardinals 2014; Boston Red Sox 2015

Percentile snapshot

2013 season — qualified pitchers

88.8

SHO

98.8

156

86.3

58.8

8.8

195

86.3

193.0

ERA

3.45

WHIP

1.202

K/9

9.09

87.5

FIP

3.38

FIP-

87.1

68.8

ERA+

112.3

51.3

sWAR

2.9

46.3

of 81 qualified 2013 pitchers (min 162 IP)

Career, era-adjusted

ERA+

93.9

15.1

sWAR

8.2

84.6

ERA+ measured against qualified careers (1,000+ IP), 1,334 of them; sWAR measured against every career in history, 24,011 of them. Only era-adjusted career stats carry a percentile — a raw career total gets a rank instead, because pooling the 1890s with the 2020s is a choice, not a measurement.

Season by season

Batting

Season	G	PA	AB	R	H	RBI	SO	BA	OBP	SLG	OPS	wRC+	OPS+	wOBA	sWAR
2008	36	5	5	0	0	0	4	.000	.000	.000	.000	-126.7	-100.0	.000	2.2
2009	42	0	0	0	0	0	0	—	—	—	—	—	—	—	1.2
2010	34	5	4	0	1	0	1	.250	.250	.250	.500	32.6	40.1	.226	0.3
2011	34	6	6	0	1	0	2	.167	.167	.167	.333	-17.9	-6.3	.149	4.0
2012	34	2	2	0	0	0	1	.000	.000	.000	.000	-121.3	-100.0	.000	-0.3
2013	32	2	2	0	1	0	0	.500	.500	.500	1.000	193.6	183.2	.448	2.9
2014	28	13	11	1	2	1	4	.182	.182	.182	.364	-12.8	3.4	.164	-2.0
2015	18	3	3	0	2	1	1	.667	.667	.667	1.333	287.0	260.7	.590	-0.3

Pitching

Season	G	GS	W	L	CG	SHO	H	ER	BB	SO	HR	IP	ERA	WHIP	K/9	FIP	FIP-	ERA+	sWAR
2008	36	9	6	5	0	0	68	31	40	68	10	88.3	3.16	1.223	6.93	4.72	104.6	143.0	2.2
2009	42	16	4	10	1	0	128	65	60	119	12	129.3	4.52	1.454	8.28	4.09	91.7	98.8	1.2
2010	34	29	6	13	1	1	197	94	73	140	14	180.0	4.70	1.500	7.00	3.90	97.8	84.9	0.3
2011	34	33	12	10	1	0	211	77	65	158	11	216.0	3.21	1.278	6.58	3.32	83.5	123.8	4.0
2012	34	34	11	15	1	0	212	113	88	159	18	206.3	4.93	1.454	6.94	4.11	103.6	80.4	-0.3
2013	32	29	14	10	3	3	156	74	76	195	13	193.0	3.45	1.202	9.09	3.38	87.1	112.3	2.9
2014	28	25	7	9	0	0	141	84	69	116	12	128.7	5.88	1.632	8.11	4.52	119.4	64.7	-2.0
2015	18	9	4	2	0	0	68	37	27	49	7	59.3	5.61	1.601	7.43	4.86	114.6	75.5	-0.3

sWAR is the season TOTAL for a player who both hit and pitched: the record book carries one figure per season, not a split, so the same number appears on both lines rather than being counted twice.

Career totals

Batting

258

RBI

.2121

OBP

.2121

SLG

.2121

OPS

.4242

Pitching

G (P)

258

184

SHO

1,201

SO (P)

1,004

BB allowed

498

ERA

4.309

WHIP

1.3980

K/9

7.52

136th-highest career K/9

A total is called out only where it ranks in the all-time top 500; hover a figure for its rank and the size of the field it was ranked in. Ranks are absolute facts and carry no percentile — the population for "career home runs" would be an editorial choice, and the rank is not.

Best games

Batting

Date	Game	AB	H	RBI	TB
2015-04-09	BOS @ PHI Gameday	3	2	1	2
2014-08-13	STL @ MIA Gameday	3	1	1	1
2010-06-26	CLE @ CIN Gameday	2	1	0	1
2011-07-01	CLE @ CIN Gameday	4	1	0	1
2013-08-28	CLE @ ATL Gameday	2	1	0	1

Pitching

Date	Game	IP	H	R	ER	BB	SO	HR
2009-09-30	CWS @ CLE Gameday	9.0	4	1	1	2	12	0
2013-05-19	SEA @ CLE Gameday	7.0	3	0	0	2	11	0
2012-04-05	TOR @ CLE Gameday	8.0	2	1	1	1	10	1
2013-06-14	WSH @ CLE Gameday	7.0	2	1	1	4	10	0
2014-06-02	BOS @ CLE Gameday	7.0	3	0	0	4	10	0

Ranked from our own play-by-play game log, which begins in 1901 — not from the record book, so a career played outside it shows nothing here rather than a short list.

Honors

1× All-Star

Major awards only — the awards table also records Player of the Week, and forty of those would bury seven MVPs. Hover for the years.