Justin Masterson

Position: Pitcher

Bats: Right • Throws: Right

6-6, 260lb (198cm, 117kg)

Born: March 22, 1985 in Kingston, Jamaica jm

Draft: Drafted by the Boston Red Sox in the 2nd round of the 2006 MLB June Amateur Draft from San Diego State University (San Diego, CA).

High School: Beavercreek HS (Beavercreek, OH)

Schools: Bethel University (Mishawaka, IN), San Diego State University (San Diego, CA)

Last Game: August 9, 2015 (Age 30-140d)
vs. DET 1.0 IP, 1 H, 1 SO, 1 BB, 1 ER

Rookie Status: Exceeded rookie limits during 2008 season

Agents: Randy Rowley

Full Name: Justin Daniel Masterson

Nicknames: Bat Masterson, Big Masty, Nasty Masty or Masty

View Player Info from the B-R Bullpen

1x All-Star

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SUMMARY

Career

WAR

10.1

ERA

4.31

258

184

1201.0

1004

WHIP

1.398

Prospect Rankings

Player News

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Year	Age	AgeDif	Tm	Lg	Lev	Aff	W	L	W-L%	ERA	RA9	G	GS	GF	CG	SHO	SV	IP	H	R	ER	HR	BB	IBB	SO	HBP	BK	WP	BF	WHIP	H9	HR9	BB9	SO9	SO/W
2006	21	-0.5	Lowell	NYPL	A-	BOS	3	1	.750	0.85	1.14	14	0	1	0	0	0	31.2	20	4	3	0	2	0	33	3	0	1	120	0.695	5.7	0.0	0.6	9.4	16.50
2007	22		2 Teams	2 Lgs	A+-AA	BOS	12	8	.600	4.33	4.98	27	27	0	0	0	0	153.2	152	85	74	8	40	0	115	8	0	4	649	1.249	8.9	0.5	2.3	6.7	2.88
2007	22	-2.8	Portland	EL	AA	BOS	4	3	.571	4.34	4.50	10	10	0	0	0	0	58.0	49	29	28	4	18	0	59	2	0	3	239	1.155	7.6	0.6	2.8	9.2	3.28
2007	22	-1.0	Lancaster	CALL	A+	BOS	8	5	.615	4.33	5.27	17	17	0	0	0	0	95.2	103	56	46	4	22	0	56	6	0	1	410	1.307	9.7	0.4	2.1	5.3	2.55
2008	23		2 Teams	2 Lgs	AA-AAA	BOS	2	3	.400	3.97	4.91	12	9	0	0	0	0	47.2	43	26	21	1	17	0	45	4	0	3	204	1.259	8.1	0.2	3.2	8.5	2.65
2008	23	-4.1	Pawtucket	IL	AAA	BOS	1	0	1.000	2.89	3.86	4	1	0	0	0	0	9.1	6	4	3	1	1	0	8	1	0	1	35	0.750	5.8	1.0	1.0	7.7	8.00
2008	23	-1.6	Portland	EL	AA	BOS	1	3	.250	4.23	5.17	8	8	0	0	0	0	38.1	37	22	18	0	16	0	37	3	0	2	169	1.383	8.7	0.0	3.8	8.7	2.31
2008	23	-5.3	BOS	AL	Maj	BOS	6	5	.545	3.16	3.16	36	9	6	0	0	0	88.1	68	31	31	10	40	3	68	8	0	1	365	1.223	6.9	1.0	4.1	6.9	1.70
2009	24		2 Teams	AL	Maj	BOS-CLE	4	10	.286	4.52	5.08	42	16	4	1	0	0	129.1	128	73	65	12	60	3	119	8	0	5	568	1.454	8.9	0.8	4.2	8.3	1.98
2009	24	-4.1	BOS	AL	Maj	BOS	3	3	.500	4.50	4.75	31	6	4	0	0	0	72.0	72	38	36	7	25	2	67	6	0	3	312	1.347	9.0	0.9	3.1	8.4	2.68
2009	24	-4.1	CLE	AL	Maj	CLE	1	7	.125	4.55	5.49	11	10	0	1	0	0	57.1	56	35	29	5	35	1	52	2	0	2	256	1.587	8.8	0.8	5.5	8.2	1.49
2010	25	-3.0	CLE	AL	Maj	CLE	6	13	.316	4.70	5.35	34	29	0	1	1	0	180.0	197	107	94	14	73	4	140	11	0	12	802	1.500	9.9	0.7	3.7	7.0	1.92
2011	26	-2.2	CLE	AL	Maj	CLE	12	10	.545	3.21	3.71	34	33	0	1	0	0	216.0	211	89	77	11	65	4	158	11	0	5	908	1.278	8.8	0.5	2.7	6.6	2.43
2012	27	-1.2	CLE	AL	Maj	CLE	11	15	.423	4.93	5.32	34	34	0	1	0	0	206.1	212	122	113	18	88	1	159	13	0	14	906	1.454	9.2	0.8	3.8	6.9	1.81
2013	28	-0.7	CLE	AL	Maj	CLE	14	10	.583	3.45	3.50	32	29	2	3	3	0	193.0	156	75	74	13	76	0	195	17	0	8	803	1.202	7.3	0.6	3.5	9.1	2.57
2014	29		2 Teams	2 Lgs	Maj	STL	7	9	.438	5.88	6.30	28	25	1	0	0	0	128.2	141	90	84	12	69	2	116	15	0	14	592	1.632	9.9	0.8	4.8	8.1	1.68
2014	29	2.1	Columbus	IL	AAA	CLE	0	1	.000	5.40	5.40	2	2	0	0	0	0	11.2	9	7	7	0	8	0	10	0	0	2	50	1.457	6.9	0.0	6.2	7.7	1.25
2014	29	0.5	CLE	AL	Maj	CLE	4	6	.400	5.51	6.06	19	19	0	0	0	0	98.0	106	66	60	6	56	2	93	11	0	9	452	1.653	9.7	0.6	5.1	8.5	1.66
2014	29	0.5	STL	NL	Maj	STL	3	3	.500	7.04	7.04	9	6	1	0	0	0	30.2	35	24	24	6	13	0	23	4	0	5	140	1.565	10.3	1.8	3.8	6.8	1.77
2015	30		2 Teams	2 Lgs	AAA-AA	BOS	0	2	.000	3.44	3.93	4	4	0	0	0	0	18.1	16	8	7	0	8	0	14	2	0	5	77	1.309	7.9	0.0	3.9	6.9	1.75
2015	30	3.0	Pawtucket	IL	AAA	BOS	0	2	.000	3.29	3.95	3	3	0	0	0	0	13.2	8	6	5	0	7	0	12	1	0	4	54	1.098	5.3	0.0	4.6	7.9	1.71
2015	30	5.4	Portland	EL	AA	BOS	0	0		3.86	3.86	1	1	0	0	0	0	4.2	8	2	2	0	1	0	2	1	0	1	23	1.929	15.4	0.0	1.9	3.9	2.00
2015	30	1.7	BOS	AL	Maj	BOS	4	2	.667	5.61	5.76	18	9	4	0	0	0	59.1	68	38	37	7	27	0	49	10	1	7	273	1.601	10.3	1.1	4.1	7.4	1.81
2016	31		2 Teams	2 Lgs	AAA-A+	PIT	3	2	.600	4.85	4.85	26	6	6	0	0	0	59.1	64	32	32	4	29	0	40	10	1	3	265	1.567	9.7	0.6	4.4	6.1	1.38
2016	31	4.3	Indianapolis	IL	AAA	PIT	2	2	.500	4.97	4.97	25	5	6	0	0	0	54.1	62	30	30	3	26	0	32	10	1	3	245	1.620	10.3	0.5	4.3	5.3	1.23
2016	31	7.9	Bradenton	FLOR	A+	PIT	1	0	1.000	3.60	3.60	1	1	0	0	0	0	5.0	2	2	2	1	3	0	8	0	0	0	20	1.000	3.6	1.8	5.4	14.4	2.67
2017	32	5.4	Oklahoma City	PCL	AAA	LAD	11	6	.647	4.13	4.57	26	25	0	0	0	0	141.2	129	72	65	7	66	1	140	23	0	10	631	1.376	8.2	0.4	4.2	8.9	2.12
Year	Age	AgeDif	Tm	Lg	Lev	Aff	W	L	W-L%	ERA	RA9	G	GS	GF	CG	SHO	SV	IP	H	R	ER	HR	BB	IBB	SO	HBP	BK	WP	BF	WHIP	H9	HR9	BB9	SO9	SO/W
Majors (8 seasons)					Majors		64	74	.464	4.31	4.68	258	184	17	7	4	0	1201.0	1181	625	575	97	498	17	1004	93	1	66	5217	1.398	8.9	0.7	3.7	7.5	2.02
Minors (7 seasons)					Minors		31	23	.574	4.05	4.54	111	73	7	0	0	0	464.0	433	234	209	20	170	1	397	50	1	28	1996	1.300	8.4	0.4	3.3	7.7	2.34
All Levels (12 Seasons)							95	97	.495	4.24	4.64	369	257	24	7	4	0	1665.0	1614	859	784	117	668	18	1401	143	2	94	7213	1.371	8.7	0.6	3.6	7.6	2.10

AAA (5 seasons)					Minors		14	11	.560	4.29	4.64	60	36	6	0	0	0	230.2	214	119	110	11	108	1	202	35	1	20	1015	1.396	8.3	0.4	4.2	7.9	1.87
AA (3 seasons)					Minors		5	6	.455	4.28	4.72	19	19	0	0	0	0	101.0	94	53	48	4	35	0	98	6	0	6	431	1.277	8.4	0.4	3.1	8.7	2.80
A+ (2 seasons)					Minors		9	5	.643	4.29	5.19	18	18	0	0	0	0	100.2	105	58	48	5	25	0	64	6	0	1	430	1.291	9.4	0.4	2.2	5.7	2.56
A- (1 season)					Minors		3	1	.750	0.85	1.14	14	0	1	0	0	0	31.2	20	4	3	0	2	0	33	3	0	1	120	0.695	5.7	0.0	0.6	9.4	16.50