What years did Casey Janssen play?

Casey Janssen played in Major League Baseball from 2006 to 2015.

Was Casey Janssen a pitcher?

Yes. Casey Janssen pitched in the major leagues, recording 31 wins and 395 strikeouts.

How many home runs did Casey Janssen hit?

Casey Janssen hit 0 career home runs.

What was Casey Janssen's career batting average?

Casey Janssen batted .000 over his career, with 0 hits in 3 at bats.

What was Casey Janssen's career ERA?

Casey Janssen finished with a 3.63 career ERA, going 31-29 with 395 strikeouts.

How many strikeouts did Casey Janssen have?

Casey Janssen recorded 395 career strikeouts.

Casey Janssen

Pitcher · Career Stats, Bio & Records (2006-2015)

Casey Janssen was a pitcher who played in Major League Baseball from 2006 to 2015 for the Toronto Blue Jays and the Washington Nationals, a span of 10 seasons. Across 437 career appearances, he went 31-29 with a 3.63 ERA, 395 strikeouts, and 90 saves. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 5148.4.

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 12, 2026

W–L 31–29

ERA 3.63

WHIP 1.21

SO 395

Pitcher PIV 5148.4

Position: Pitcher
Bats / Throws: R / R
Height / Weight: 6'4" / 210 lb
Born: 9/17/1981 in Orange, CA, USA
MLB Debut: 2006-04-27
Last Game: 2015-10-03

Full name: Robert Casey Janssen

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Career Pitching Statistics

Casey Janssen — Career Pitching Statistics
W	L	G	GS	CG	SHO	SV	IP	H	ER	HR	BB	SO	ERA	Pitcher PIV
31	29	437	22	0	0	90	533.0	518	215	52	129	395	3.63	5148.4

Career ERA 3.63 vs. league average 4.10 across their career seasons — 11.5% better than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Casey Janssen Stats, Bio & Career Records
Year	Team	Lg	W	L	G	GS	SV	IP	H	ER	BB	SO	ERA	Lg ERA	Pitcher PIV
2006	TOR	AL	6	10	19	17	0	94.0	103	53	21	44	5.07	4.53 (-12%)	-556.8
2007	TOR	AL	2	3	70	0	6	72.2	67	19	20	39	2.35	4.47 (+47%)	1183.3
2009	TOR	AL	2	4	21	5	1	40.0	59	26	14	24	5.85	4.32 (-35%)	-400.3
2010	TOR	AL	5	2	56	0	0	68.2	74	28	21	63	3.67	4.08 (+10%)	398.5
2011	TOR	AL	6	0	55	0	2	55.2	47	14	14	53	2.26	3.94 (+43%)	2100.0
2012	TOR	AL	1	1	62	0	22	63.2	44	18	11	67	2.54	4.01 (+37%)	1508.7
2013	TOR	AL	4	1	56	0	34	52.2	39	15	13	50	2.56	3.87 (+34%)	1492.5
2014	TOR	AL	3	3	50	0	25	45.2	47	20	7	28	3.94	3.74 (-5%)	-455.4
2015	WAS	NL	2	5	48	0	0	40.0	38	22	8	27	4.95	3.96 (-25%)	-122.1
Career · 9 seasons			31	29	437	22	90	533.0	518	215	129	395	3.63	—	5,148

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

Casey Janssen — Career Batting Statistics
G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	OBP	SLG	OPS	PIV
437	3	0	0	0	0	0	0	0	0	2	.000	.000	.000	.000	0

Career AVG .000 vs. league average .258 across their career seasons — 100.0% below league average.

Career OBP .000 vs. league average .324 across their career seasons — 100.0% below league average.

Career SLG .000 vs. league average .407 across their career seasons — 100.0% below league average.

Career OPS .000 vs. league average .732 across their career seasons — 100.0% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Casey Janssen Stats, Bio & Career Records
Year	Team	Lg	G	AB	SO	AVG	Lg AVG	Lg OBP	Lg SLG	Lg OPS	PIV
2006	TOR	AL	19	1	1	.000	—	—	—	—	0.0
2007	TOR	AL	70	0	0	.000	—	—	—	—	0.0
2009	TOR	AL	21	1	0	.000	—	—	—	—	0.0
2010	TOR	AL	56	1	1	.000	—	—	—	—	0.0
2011	TOR	AL	55	0	0	.000	—	—	—	—	0.0
2012	TOR	AL	62	0	0	.000	—	—	—	—	0.0
2013	TOR	AL	56	0	0	.000	—	—	—	—	0.0
2014	TOR	AL	50	0	0	.000	—	—	—	—	0.0
2015	WAS	NL	48	0	0	.000	—	—	—	—	0.0
Career · 9 seasons			437	3	2	.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 (874 games) →

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

Batting — Home / Away

Casey Janssen — Batting — Home / Away
Split	G	AB	R	H	HR	RBI	AVG
Home	235	0	0	0	0	0	—
Away	202	3	0	0	0	0	.000

Pitching — Home / Away

Casey Janssen — Pitching — Home / Away
Split	G	IP	H	ER	BB	SO	ERA
Home	235	288.2	304	118	63	194	3.68
Away	202	244.1	214	97	66	201	3.57

Last 10 Games — Pitching

Casey Janssen — Last 10 Games — Pitching
Date	Tm	Opp	Dec	IP	H	R	ER	BB	SO	HR
2015-10-03	WAS	NYN	—	1.0	0	0	0	0	1	0
2015-09-27	WAS	PHI	—	0.2	2	2	2	0	0	1
2015-09-23	WAS	BAL	—	1.0	1	0	0	1	0	0
2015-09-22	WAS	BAL	—	1.0	0	0	0	0	1	0
2015-09-18	WAS	MIA	W	0.2	0	0	0	0	1	0
2015-09-14	WAS	PHI	—	0.2	0	0	0	0	2	0
2015-09-11	WAS	MIA	L	0.1	1	1	1	0	0	0
2015-09-07	WAS	NYN	—	0.0	1	1	1	0	0	0
2015-09-06	WAS	ATL	—	0.2	0	0	0	0	1	0
2015-09-05	WAS	ATL	—	1.0	0	0	0	0	1	0

Fielding Statistics

Career Fielding Totals by Position

Casey Janssen — Career Fielding Totals by Position
Position	G	GS	PO	A	E	DP
P	437	22	52	64	6	2

Season-by-Season Fielding

Casey Janssen — Season-by-Season Fielding
Year	Team	Pos	G	GS	PO	A	E	DP
2006	TOR	P	19	17	8	15	0	0
2007	TOR	P	70	0	6	5	2	0
2009	TOR	P	21	5	2	6	1	0
2010	TOR	P	56	0	12	4	0	0
2011	TOR	P	55	0	6	9	2	1
2012	TOR	P	62	0	7	6	0	0
2013	TOR	P	56	0	4	8	0	0
2014	TOR	P	50	0	3	5	1	1
2015	WAS	P	48	0	4	6	0	0

Career Games by Position

Position Diamond

Circle size = games played at each position.

Casey Janssen Stats, Bio & Career Records
Position	Games
Pitcher	437

Salary History

Casey Janssen — Salary History
Year	Team	League	Salary
2015	WAS	NL	$3,500,000
2014	TOR	AL	$4,000,000
2013	TOR	AL	$3,900,000
2012	TOR	AL	$2,000,000
2011	TOR	AL	$1,095,000
2010	TOR	AL	$700,000
2009	TOR	AL	$413,900
2008	TOR	AL	$403,900
2007	TOR	AL	$385,200
Total Career Earnings			$16,398,000

College History

Casey Janssen — College History
School Name	City	State	Years Attended
University of California - Los Angeles	Los Angeles	CA	2001, 2002, 2003, 2004

Most Similar Players

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

Career Spans

Casey Janssen (highlighted) compared to peers across the same era.

Casey Janssen: the record in brief

Casey Janssen played a first major league game on April 27, 2006 and a last one on October 3, 2015. Club by club, the record runs the Toronto Blue Jays (2006 to 2014) and the Washington Nationals (2015). Born on September 17, 1981, in Orange, CA, USA, Janssen is listed as a pitcher and both batted and threw right-handed. The bio gives 6'4" and 210 pounds. On the record, Casey Janssen was born Robert Casey Janssen.

The pitching table credits Janssen with a 31-29 record and a 3.63 ERA in 437 games. Also on Janssen's record: 395 strikeouts and 90 saves. Against a 4.10 league ERA for the same years, Janssen was 11.5% better. 2006 brought Janssen a season-high 6 wins. The strikeout high was 67 in 2012. The most saves in one season was 34, in 2013. 2007 was Janssen's sharpest full season, a 2.35 ERA against the league's 4.47.

Frequently Asked Questions about Casey Janssen

What years did Casey Janssen play?: Casey Janssen played in Major League Baseball from 2006 to 2015.
Was Casey Janssen a pitcher?: Yes. Casey Janssen pitched in the major leagues, recording 31 wins and 395 strikeouts.
How many home runs did Casey Janssen hit?: Casey Janssen hit 0 career home runs.
What was Casey Janssen's career batting average?: Casey Janssen batted .000 over his career, with 0 hits in 3 at bats.
What was Casey Janssen's career ERA?: Casey Janssen finished with a 3.63 career ERA, going 31-29 with 395 strikeouts.
How many strikeouts did Casey Janssen have?: Casey Janssen recorded 395 career strikeouts.