What years did Hisashi Iwakuma play?

Hisashi Iwakuma played in Major League Baseball from 2012 to 2017.

Was Hisashi Iwakuma a pitcher?

Yes. Hisashi Iwakuma pitched in the major leagues, recording 63 wins and 714 strikeouts.

How many home runs did Hisashi Iwakuma hit?

Hisashi Iwakuma hit 0 career home runs.

What teams did Hisashi Iwakuma play for?

Hisashi Iwakuma played for one team, the Seattle Mariners (2012–2017).

Did Hisashi Iwakuma win a Cy Young Award?

No. Hisashi Iwakuma did not win the Cy Young Award.

What awards did Hisashi Iwakuma win?

Hisashi Iwakuma was selected to 1 All-Star Game.

What were Hisashi Iwakuma's career stats?

In 150 games, Hisashi Iwakuma went 63-39 with a 3.42 ERA, 714 strikeouts, 883.2 innings pitched, and 2 saves.

What was Hisashi Iwakuma's salary?

Hisashi Iwakuma's last recorded salary was $10,976,096, in 2016. His highest recorded salary was $10,976,096, in 2016, and his lowest was $1,500,000, in 2012. The Salary History table lists each season from 2012 to 2016.

What position did Hisashi Iwakuma play?

Hisashi Iwakuma played primarily as a pitcher, the position where he appeared in the most games.

How tall was Hisashi Iwakuma and how much did he weigh?

Hisashi Iwakuma was listed at 6 feet 3 inches and 210 pounds.

What was Hisashi Iwakuma's career ERA?

Hisashi Iwakuma finished with a 3.42 career ERA, going 63-39 with 714 strikeouts.

How many strikeouts did Hisashi Iwakuma have?

Hisashi Iwakuma recorded 714 career strikeouts.

Is Hisashi Iwakuma in the Hall of Fame?

No. Hisashi Iwakuma has not been inducted into the National Baseball Hall of Fame.

Hisashi Iwakuma

Pitcher · Career Stats, Bio & Records (2012-2017)

Hisashi Iwakuma was a pitcher who played in Major League Baseball from 2012 to 2017 for the Seattle Mariners, a span of 6 seasons. Across 150 career appearances, he went 63-39 with a 3.42 ERA and 714 strikeouts. Hisashi Iwakuma was an All-Star. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 2429.8.

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 24, 2026

W–L 63–39

ERA 3.42

WHIP 1.14

SO 714

Pitcher PIV 2429.8

Position: Pitcher
Bats / Throws: R / R
Height / Weight: 6'3" / 210 lb
Born: 4/12/1981 in Tokyo, Tokyo, Japan
MLB Debut: 2012-04-20
Last Game: 2017-05-03
Awards: All-Star

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Career Pitching Statistics

Hisashi Iwakuma — Career Pitching Statistics
W	L	G	GS	CG	SHO	SV	IP	H	ER	HR	BB	SO	ERA	Pitcher PIV
63	39	150	136	1	1	2	883.2	825	336	115	185	714	3.42	2429.8

Career ERA 3.42 vs. league average 4.02 across their career seasons — 14.9% better than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Hisashi Iwakuma — Season-by-Season Pitching
Year	Team	Lg	W	L	G	GS	CG	SHO	SV	IP	H	ER	BB	SO	ERA	Lg ERA	Pitcher PIV
2012	SEA	AL	9	5	30	16	0	0	2	125.1	117	44	43	101	3.16	4.01 (+21%)	-1042.6
2013	SEA	AL	14	6	33	33	0	0	0	219.2	179	65	42	185	2.66	3.87 (+31%)	2419.8
2014	SEA	AL	15	9	28	28	0	0	0	179.0	167	70	21	154	3.52	3.74 (+6%)	2278.5
2015	SEA	AL	9	5	20	20	1	1	0	129.2	117	51	21	111	3.54	3.96 (+11%)	753.3
2016	SEA	AL	16	12	33	33	0	0	0	199.0	218	91	46	147	4.12	4.19 (+2%)	-384.4
2017	SEA	AL	0	2	6	6	0	0	0	31.0	27	15	12	16	4.35	4.36 (avg)	-1594.7
Career · 6 seasons			63	39	150	136	1	1	2	883.2	825	336	185	714	3.42	—	2,430

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

Hisashi Iwakuma — Career Batting Statistics
G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	OBP	SLG	OPS	PIV
150	11	0	0	0	0	0	0	0	1	8	.000	.083	.000	.083	0

Career AVG .000 vs. league average .254 across their career seasons — 100.0% below league average.

Career OBP .083 vs. league average .319 across their career seasons — 73.9% below league average.

Career SLG .000 vs. league average .406 across their career seasons — 100.0% below league average.

Career OPS .083 vs. league average .725 across their career seasons — 88.5% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Hisashi Iwakuma — Season-by-Season Batting
Year	Team	Lg	G	AB	BB	SO	AVG	Lg AVG	Lg OBP	Lg SLG	Lg OPS	PIV
2012	SEA	AL	30	0	0	0	.000	—	—	—	—	0.0
2013	SEA	AL	33	3	0	2	.000	—	—	—	—	0.0
2014	SEA	AL	28	4	1	3	.000	—	—	—	—	0.0
2015	SEA	AL	20	2	0	2	.000	—	—	—	—	0.0
2016	SEA	AL	33	2	0	1	.000	—	—	—	—	0.0
2017	SEA	AL	6	0	0	0	.000	—	—	—	—	0.0
Career · 6 seasons			150	11	1	8	.000	—	—	—	—	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.

Game Log & Splits

View full game log (300 games) →

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

Batting — Home / Away

Hisashi Iwakuma — Batting — Home / Away
Split	G	AB	R	H	HR	RBI	AVG
Home	77	0	0	0	0	0	—
Away	73	11	0	0	0	0	.000

Pitching — Home / Away

Hisashi Iwakuma — Pitching — Home / Away
Split	G	IP	H	ER	BB	SO	ERA
Home	77	461.0	424	178	69	393	3.48
Away	73	422.2	401	158	116	321	3.36

Last 10 Games — Pitching

Hisashi Iwakuma — Last 10 Games — Pitching
Date	Tm	Opp	Dec	IP	H	R	ER	BB	SO	HR
2017-05-03	SEA	LAA	—	5.0	6	3	3	1	4	1
2017-04-27	SEA	DET	—	5.2	3	1	0	1	3	0
2017-04-21	SEA	OAK	L	5.1	5	3	3	4	3	2
2017-04-16	SEA	TEX	—	3.0	7	6	6	0	2	1
2017-04-09	SEA	LAA	—	6.0	2	1	1	3	2	1
2017-04-04	SEA	HOU	L	6.0	4	2	2	3	2	2
2016-10-01	SEA	OAK	—	3.2	9	5	5	1	5	0
2016-09-26	SEA	HOU	—	6.0	4	1	1	2	5	0
2016-09-20	SEA	TOR	L	3.1	8	6	5	1	5	2
2016-09-14	SEA	LAA	W	6.1	5	1	1	3	2	0

Fielding Statistics

Career Fielding Totals by Position

Hisashi Iwakuma — Career Fielding Totals by Position
Position	G	GS	PO	A	E	DP
P	150	136	55	102	3	7

Season-by-Season Fielding

Hisashi Iwakuma — Season-by-Season Fielding
Year	Team	Pos	G	GS	PO	A	E	DP
2012	SEA	P	30	16	7	10	1	1
2013	SEA	P	33	33	13	26	1	2
2014	SEA	P	28	28	17	24	1	1
2015	SEA	P	20	20	6	21	0	1
2016	SEA	P	33	33	11	19	0	1
2017	SEA	P	6	6	1	2	0	1

Career Games by Position

Position Diamond

Circle size = games played at each position.

Hisashi Iwakuma — Career Games by Position
Position	Games
Pitcher	150

Awards & Honors

Hisashi Iwakuma — Awards & Honors
Year	Award	Notes
2015	Player of the Week	Week of 2015-08-16

Salary History

Hisashi Iwakuma's recorded salaries total $32,476,096 over 5 seasons, 2012 to 2016. This total is partial: the salary data covers 1985 to 2016, and Iwakuma's career ran from 2012 to 2017. His seasons after 2016 are not included.

Hisashi Iwakuma — Salary History
Year	Team	League	Salary
2016	SEA	AL	$10,976,096
2015	SEA	AL	$7,000,000
2014	SEA	AL	$6,500,000
2013	SEA	AL	$6,500,000
2012	SEA	AL	$1,500,000
Total recorded salary (partial)			$32,476,096

Award Voting History

Hisashi Iwakuma — Award Voting History
Year	Award	League	Finish	Points Won	Points Max	Votes First
2013	Cy Young Award	AL	3rd	73.0	210	0
2013	Most Valuable Player	AL	19th	2.0	420	0

Most Similar Players

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

Career Spans

Hisashi Iwakuma (highlighted) compared to peers across the same era.

Hisashi Iwakuma: the record in brief

The profile opens with Hisashi Iwakuma's first major league game on April 20, 2012; the last one listed came on May 3, 2017. Iwakuma's only club in the season tables is the Seattle Mariners. At 210 pounds on a 6-foot-3 frame, Iwakuma is listed as a pitcher. Iwakuma both batted and threw right-handed, per the bio block. The recorded birth is April 12, 1981, in Tokyo, Tokyo, Japan.

Across 150 games (136 starts), Iwakuma recorded 63 wins against 39 losses with a 3.42 ERA. Also on Iwakuma's record: 714 strikeouts. That 3.42 ERA compares with a 4.02 league average across the same seasons, 14.9% better. No season topped the 16 wins of 2016. 2013 produced Iwakuma's most strikeouts, 185. In 2013, one of the busiest seasons, Iwakuma posted a 2.66 ERA; the league figure that year was 3.87. By Pitcher PIV, Baseball Data Hub's measure of run prevention relative to each season's league, Iwakuma's career adds up to 2,429.8.

Frequently Asked Questions about Hisashi Iwakuma

What years did Hisashi Iwakuma play?: Hisashi Iwakuma played in Major League Baseball from 2012 to 2017.
Was Hisashi Iwakuma a pitcher?: Yes. Hisashi Iwakuma pitched in the major leagues, recording 63 wins and 714 strikeouts.
How many home runs did Hisashi Iwakuma hit?: Hisashi Iwakuma hit 0 career home runs.
What teams did Hisashi Iwakuma play for?: Hisashi Iwakuma played for one team, the Seattle Mariners (2012–2017).
Did Hisashi Iwakuma win a Cy Young Award?: No. Hisashi Iwakuma did not win the Cy Young Award.
What awards did Hisashi Iwakuma win?: Hisashi Iwakuma was selected to 1 All-Star Game.
What were Hisashi Iwakuma's career stats?: In 150 games, Hisashi Iwakuma went 63-39 with a 3.42 ERA, 714 strikeouts, 883.2 innings pitched, and 2 saves.
How much did Hisashi Iwakuma earn in his career?: Hisashi Iwakuma's recorded salaries total $32,476,096 over 5 seasons, 2012 to 2016. This total is partial: the salary data covers 1985 to 2016, and Iwakuma's career ran from 2012 to 2017. His seasons after 2016 are not included.
What was Hisashi Iwakuma's salary?: Hisashi Iwakuma's last recorded salary was $10,976,096, in 2016. His highest recorded salary was $10,976,096, in 2016, and his lowest was $1,500,000, in 2012. The Salary History table lists each season from 2012 to 2016.
What position did Hisashi Iwakuma play?: Hisashi Iwakuma played primarily as a pitcher, the position where he appeared in the most games.
How tall was Hisashi Iwakuma and how much did he weigh?: Hisashi Iwakuma was listed at 6 feet 3 inches and 210 pounds.
What was Hisashi Iwakuma's career ERA?: Hisashi Iwakuma finished with a 3.42 career ERA, going 63-39 with 714 strikeouts.
How many strikeouts did Hisashi Iwakuma have?: Hisashi Iwakuma recorded 714 career strikeouts.
Is Hisashi Iwakuma in the Hall of Fame?: No. Hisashi Iwakuma has not been inducted into the National Baseball Hall of Fame.