What years did Justin Masterson play?

Justin Masterson played in Major League Baseball from 2008 to 2015.

Was Justin Masterson a pitcher?

Yes. Justin Masterson pitched in the major leagues, recording 64 wins and 1004 strikeouts.

How many home runs did Justin Masterson hit?

Justin Masterson hit 0 career home runs with 7 hits.

What teams did Justin Masterson play for?

Justin Masterson played for 3 teams: the Boston Red Sox (2008–2009, 2015), the Cleveland Indians (2009–2014), and the St. Louis Cardinals (2014).

Did Justin Masterson win a Cy Young Award?

No. Justin Masterson did not win the Cy Young Award.

What awards did Justin Masterson win?

Justin Masterson was selected to 1 All-Star Game.

What were Justin Masterson's career stats?

In 258 games, Justin Masterson went 64-74 with a 4.31 ERA, 1,004 strikeouts, and 1,201.0 innings pitched.

What was Justin Masterson's salary?

Justin Masterson's last recorded salary was $9,500,000, in 2015. His highest recorded salary was $9,762,500, in 2014, and his lowest was $415,500, in 2009. The Salary History table lists each season from 2009 to 2015.

What position did Justin Masterson play?

Justin Masterson played primarily as a pitcher, the position where he appeared in the most games.

How tall was Justin Masterson and how much did he weigh?

Justin Masterson was listed at 6 feet 6 inches and 260 pounds.

What was Justin Masterson's career ERA?

Justin Masterson finished with a 4.31 career ERA, going 64-74 with 1,004 strikeouts.

How many strikeouts did Justin Masterson have?

Justin Masterson recorded 1,004 career strikeouts.

Is Justin Masterson in the Hall of Fame?

No. Justin Masterson has not been inducted into the National Baseball Hall of Fame.

Justin Masterson

Pitcher · Career Stats, Bio & Records (2008-2015)

Justin Masterson was a pitcher who played in Major League Baseball from 2008 to 2015 for the Boston Red Sox, the Cleveland Guardians, and the St. Louis Cardinals, a span of 8 seasons. Across 258 career appearances, he went 64-74 with a 4.31 ERA and 1,004 strikeouts. Justin Masterson was an All-Star. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 2568.7.

W (Wins):: Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
ERA (Earned Run Average):: Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
SO (Strikeouts):: For a batter, times retired on a third strike; for a pitcher, batters retired on a third strike.
WHIP (Walks and Hits per Inning Pitched):: Baserunners allowed per inning: (BB + H) ÷ IP. Under 1.00 is elite.

Data updated October 15, 2026

W–L 64–74

ERA 4.31

WHIP 1.40

SO 1,004

Pitcher PIV 2568.7

Position: Pitcher
Bats / Throws: R / R
Height / Weight: 6'6" / 260 lb
Born: 3/22/1985 in Kingston, Kingston, Jamaica
MLB Debut: 2008-04-24
Last Game: 2015-08-09
Awards: All-Star

Full name: Justin Daniel Masterson

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Career Pitching Statistics

Justin Masterson — Career Pitching Statistics
W	L	G	GS	CG	SHO	SV	IP	H	ER	HR	BB	SO	ERA	Pitcher PIV
64	74	258	184	7	4	0	1201.0	1,181	575	97	498	1,004	4.31	2568.7

Career ERA 4.31 vs. league average 4.03 across their career seasons — 6.9% worse than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Justin Masterson Stats, Bio & Career Records
Year	Team	Lg	W	L	G	GS	CG	SHO	IP	H	ER	BB	SO	ERA	Lg ERA	Pitcher PIV
2008	BOS	AL	6	5	36	9	0	0	88.1	68	31	40	68	3.16	4.32 (+27%)	-818.1
2009	BOS	AL	3	3	31	6	0	0	72.0	72	36	25	67	4.50	4.32 (-4%)	968.5
2009	CLE	AL	1	7	11	10	1	0	57.1	56	29	35	52	4.55	4.32 (-5%)	-44.6
2010	CLE	AL	6	13	34	29	1	1	180.0	197	94	73	140	4.70	4.08 (-15%)	677.6
2011	CLE	AL	12	10	34	33	1	0	216.0	211	77	65	158	3.21	3.94 (+19%)	3735.9
2012	CLE	AL	11	15	34	34	1	0	206.1	212	113	88	159	4.93	4.01 (-23%)	-729.8
2013	CLE	AL	14	10	32	29	3	3	193.0	156	74	76	195	3.45	3.87 (+11%)	2594.1
2014	CLE	AL	4	6	19	19	0	0	98.0	106	60	56	93	5.51	3.74 (-47%)	-834.5
2014	SLN	NL	3	3	9	6	0	0	30.2	35	24	13	23	7.04	3.74 (-88%)	-1608.6
2015	BOS	AL	4	2	18	9	0	0	59.1	68	37	27	49	5.61	3.96 (-42%)	-1372.0
Career · 10 seasons			64	74	258	184	7	4	1,201.0	1,181	575	498	1,004	4.31	—	2,569

Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.

Career Batting Statistics

Justin Masterson — Career Batting Statistics
G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	OBP	SLG	OPS	PIV
258	33	1	7	0	0	0	2	0	0	13	.212	.212	.212	.424	0

Career AVG .212 vs. league average .257 across their career seasons — 17.3% below league average.

Career OBP .212 vs. league average .322 across their career seasons — 34.2% below league average.

Career SLG .212 vs. league average .404 across their career seasons — 47.4% below league average.

Career OPS .424 vs. league average .726 across their career seasons — 41.6% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Justin Masterson Stats, Bio & Career Records
Year	Team	Lg	G	AB	R	H	RBI	SO	AVG	Lg AVG	Lg OBP	Lg SLG	Lg OPS	PIV
2008	BOS	AL	36	5	0	0	0	4	.000	—	—	—	—	0.0
2009	BOS	AL	31	0	0	0	0	0	.000	—	—	—	—	0.0
2009	CLE	AL	11	0	0	0	0	0	.000	—	—	—	—	0.0
2010	CLE	AL	34	4	0	1	0	1	.250	—	—	—	—	0.0
2011	CLE	AL	34	6	0	1	0	2	.167	—	—	—	—	0.0
2012	CLE	AL	34	2	0	0	0	1	.000	—	—	—	—	0.0
2013	CLE	AL	32	2	0	1	0	0	.500	—	—	—	—	0.0
2014	CLE	AL	19	3	0	0	0	1	.000	—	—	—	—	0.0
2014	SLN	NL	9	8	1	2	1	3	.250	—	—	—	—	0.0
2015	BOS	AL	18	3	0	2	1	1	.667	—	—	—	—	0.0
Career · 10 seasons			258	33	1	7	2	13	.212	—	—	—	—	0

Lg columns show the league average for that season, with the player's figure as a percentage above or below it. Career totals the seasons listed above.

Postseason Statistics

Playoff Career Batting

Justin Masterson — Playoff Career Batting
G	AB	R	H	2B	3B	HR	RBI	BB	SO	AVG
10	0	0	0	0	0	0	0	0	0	.000

Playoff Batting by Year

Justin Masterson — Playoff Batting by Year
Year	Round	Team	G	AVG
2013	ALWC	CLE	1	.000
2008	ALCS	BOS	5	.000
2008	ALDS1	BOS	4	.000

Playoff Career Pitching

Justin Masterson — Playoff Career Pitching
W	L	G	GS	SV	IP	H	ER	BB	SO	ERA
1	0	10	0	0	11.2	11	2	5	11	1.54

Playoff Pitching by Year

Justin Masterson — Playoff Pitching by Year
Year	Round	Team	W	G	IP	H	ER	BB	SO	ERA
2013	ALWC	CLE	0	1	2.0	1	0	0	2	0.00
2008	ALCS	BOS	1	5	5.2	4	1	2	6	1.59
2008	ALDS1	BOS	0	4	4.0	6	1	3	3	2.25

Game Log & Splits

View full game log (516 games) →

Per-game data from Retrosheet (regular season, through 2025).

Batting — Home / Away

Justin Masterson — Batting — Home / Away
Split	G	AB	R	H	HR	RBI	AVG
Home	133	4	1	1	0	0	.250
Away	125	29	0	6	0	2	.207

Pitching — Home / Away

Justin Masterson — Pitching — Home / Away
Split	G	IP	H	ER	BB	SO	ERA
Home	133	638.0	588	258	253	542	3.64
Away	125	563.0	593	317	245	462	5.07

Last 10 Games — Pitching

Justin Masterson — Last 10 Games — Pitching
Date	Tm	Opp	Dec	IP	H	R	ER	BB	SO	HR
2015-08-09	BOS	DET	—	1.0	1	1	1	1	1	1
2015-08-07	BOS	DET	—	1.1	2	0	0	2	1	0
2015-08-01	BOS	TBR	—	1.0	1	1	1	1	2	0
2015-07-28	BOS	CHW	—	3.1	4	2	2	1	4	1
2015-07-25	BOS	DET	—	2.0	1	0	0	0	1	0
2015-07-24	BOS	DET	W	1.0	1	0	0	1	2	0
2015-07-21	BOS	HOU	—	1.2	4	3	3	0	2	1
2015-07-18	BOS	LAA	—	3.0	1	0	0	0	4	0
2015-07-10	BOS	NYY	—	1.0	0	0	0	0	0	0
2015-07-03	BOS	HOU	—	3.2	8	5	5	2	2	0

Fielding Statistics

Career Fielding Totals by Position

Justin Masterson — Career Fielding Totals by Position
Position	G	GS	PO	A	E	DP
P	258	184	103	189	14	19

Season-by-Season Fielding

Justin Masterson — Season-by-Season Fielding
Year	Team	Pos	G	GS	PO	A	E	DP
2008	BOS	P	36	9	3	10	1	2
2009	BOS	P	31	6	2	15	1	0
2009	CLE	P	11	10	2	7	1	1
2010	CLE	P	34	29	22	34	5	1
2011	CLE	P	34	33	15	32	2	4
2012	CLE	P	34	34	24	34	1	2
2013	CLE	P	32	29	21	27	1	3
2014	CLE	P	19	19	4	20	1	5
2014	SLN	P	9	6	4	2	0	0
2015	BOS	P	18	9	6	8	1	1

Career Games by Position

Position Diamond

Circle size = games played at each position.

Justin Masterson Stats, Bio & Career Records
Position	Games
Pitcher	258

Awards & Honors

Justin Masterson — Awards & Honors
Year	Award	Notes
2013	Player of the Week	Week of 2013-05-19

Salary History

Justin Masterson's recorded salaries total $30,085,900 over 7 seasons, 2009 to 2015. This total is partial: the salary data covers 1985 to 2016, and Masterson's career ran from 2008 to 2015. No salary is recorded for 2008.

Justin Masterson — Salary History
Year	Team	League	Salary
2015	BOS	AL	$9,500,000
2014	CLE	AL	$9,762,500
2013	CLE	AL	$5,687,500
2012	CLE	AL	$3,825,000
2011	CLE	AL	$468,400
2010	CLE	AL	$427,000
2009	BOS	AL	$415,500
Total recorded salary (partial)			$30,085,900

College History

Justin Masterson — College History
School Name	City	State	Years Attended
San Diego State University	San Diego	CA	2006

Most Similar Players

Career comps based on counting + rate stats and primary position. Score is relative — closest peer anchors at ~98%.

Career Spans

Justin Masterson (highlighted) compared to peers across the same era.

Justin Masterson: the record in brief

Justin Masterson played a first major league game on April 24, 2008 and a last one on August 9, 2015. By club, Masterson's seasons break down as the Boston Red Sox (2008 through 2015), the Cleveland Indians (2009 to 2014), and the St. Louis Cardinals (2014). Masterson, born on March 22, 1985, in Kingston, Kingston, Jamaica, is listed as a pitcher and batted and threw right-handed. The bio gives 6'6" and 260 pounds. The given name on file is Justin Daniel Masterson.

Masterson pitched in 258 games, starting 184, and finished with a 64-74 record and 4.31 ERA. Also on Masterson's record: 1,004 strikeouts. The league ERA over Masterson's seasons was 4.03, so the 4.31 figure ran 6.9% worse than average. The best win total was 14, in 2013. In 2011, one of the busiest seasons, Masterson posted a 3.21 ERA; the league figure that year was 3.94. By Pitcher PIV, Baseball Data Hub's measure of run prevention relative to each season's league, Masterson's career adds up to 2,568.7.

Frequently Asked Questions about Justin Masterson

What years did Justin Masterson play?: Justin Masterson played in Major League Baseball from 2008 to 2015.
Was Justin Masterson a pitcher?: Yes. Justin Masterson pitched in the major leagues, recording 64 wins and 1004 strikeouts.
How many home runs did Justin Masterson hit?: Justin Masterson hit 0 career home runs with 7 hits.
What teams did Justin Masterson play for?: Justin Masterson played for 3 teams: the Boston Red Sox (2008–2009, 2015), the Cleveland Indians (2009–2014), and the St. Louis Cardinals (2014).
Did Justin Masterson win a Cy Young Award?: No. Justin Masterson did not win the Cy Young Award.
What awards did Justin Masterson win?: Justin Masterson was selected to 1 All-Star Game.
What were Justin Masterson's career stats?: In 258 games, Justin Masterson went 64-74 with a 4.31 ERA, 1,004 strikeouts, and 1,201.0 innings pitched.
How much did Justin Masterson earn in his career?: Justin Masterson's recorded salaries total $30,085,900 over 7 seasons, 2009 to 2015. This total is partial: the salary data covers 1985 to 2016, and Masterson's career ran from 2008 to 2015. No salary is recorded for 2008.
What was Justin Masterson's salary?: Justin Masterson's last recorded salary was $9,500,000, in 2015. His highest recorded salary was $9,762,500, in 2014, and his lowest was $415,500, in 2009. The Salary History table lists each season from 2009 to 2015.
What position did Justin Masterson play?: Justin Masterson played primarily as a pitcher, the position where he appeared in the most games.
How tall was Justin Masterson and how much did he weigh?: Justin Masterson was listed at 6 feet 6 inches and 260 pounds.
What was Justin Masterson's career ERA?: Justin Masterson finished with a 4.31 career ERA, going 64-74 with 1,004 strikeouts.
How many strikeouts did Justin Masterson have?: Justin Masterson recorded 1,004 career strikeouts.
Is Justin Masterson in the Hall of Fame?: No. Justin Masterson has not been inducted into the National Baseball Hall of Fame.