What years did Jailen Peguero play?

Jailen Peguero played in Major League Baseball from 2007 to 2008.

Was Jailen Peguero a pitcher?

Yes. Jailen Peguero pitched in the major leagues, recording 1 wins and 14 strikeouts.

What was Jailen Peguero's career ERA?

Jailen Peguero finished with a 7.50 career ERA, going 1-0 with 14 strikeouts.

How many strikeouts did Jailen Peguero have?

Jailen Peguero recorded 14 career strikeouts.

Is Jailen Peguero in the Hall of Fame?

No. Jailen Peguero has not been inducted into the National Baseball Hall of Fame.

What teams did Jailen Peguero play for?

Jailen Peguero played for the Arizona Diamondbacks.

Jailen Peguero

Pitcher · Career Stats, Bio & Records (2007-2008)

Jailen Peguero was a pitcher who played in Major League Baseball from 2007 to 2008 for the Arizona Diamondbacks, a span of 2 seasons. Across 25 career appearances, he went 1-0 with a 7.50 ERA and 14 strikeouts.

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 September 9, 2026

W–L 1–0

ERA 7.50

WHIP 1.79

SO 14

Pitcher PIV -797.7

Position: Pitcher
Bats / Throws: R / R
Height / Weight: 6'0" / 185 lb
Born: 1/4/1981 in Azua, Azua, D.R.
MLB Debut: 2007-06-08
Last Game: 2008-09-25

Full name: Jailen Alphonso Peguero

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Career Pitching Statistics

Jailen Peguero — Career Pitching Statistics
W	L	G	GS	CG	SHO	SV	IP	H	ER	HR	BB	SO	ERA	Pitcher PIV
1	0	25	0	0	0	0	24.0	26	20	2	17	14	7.50	-797.7

Career ERA 7.50 vs. league average 4.40 across their career seasons — 70.5% worse than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Jailen Peguero — Season-by-Season Pitching
Year	Team	Lg	W	G	IP	H	ER	BB	SO	ERA	Lg ERA	Pitcher PIV
2007	ARI	NL	1	18	14.7	17	15	13	9	9.20	4.47 (-106%)	-797.7
2008	ARI	NL	0	7	9.3	9	5	4	5	4.82	4.32 (-12%)	0.0
Career · 2 seasons			1	25	24.0	26	20	17	14	7.50	—	-798

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

Jailen Peguero — Career Batting Statistics
G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	OBP	SLG	OPS	PIV
25	0	0	0	0	0	0	0	0	0	0	.000	.000	.000	.000	0

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Jailen Peguero — Season-by-Season Batting
Year	Team	Lg	G	AVG	Lg AVG	Lg OBP	Lg SLG	Lg OPS	PIV
2007	ARI	NL	18	.000	—	—	—	—	0.0
2008	ARI	NL	7	.000	—	—	—	—	0.0
Career · 2 seasons			25	—	—	—	—	—	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 (50 games) →

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

Batting — Home / Away

Jailen Peguero — Batting — Home / Away
Split	G	AB	R	H	HR	RBI	AVG
Home	15	0	0	0	0	0	—
Away	10	0	0	0	0	0	—

Pitching — Home / Away

Jailen Peguero — Pitching — Home / Away
Split	G	IP	H	ER	BB	SO	ERA
Home	15	14.0	13	8	9	10	5.14
Away	10	10.0	13	12	8	4	10.80

Last 10 Games — Pitching

Jailen Peguero — Last 10 Games — Pitching
Date	Tm	Opp	Dec	IP	H	R	ER	BB	SO
2008-09-25	AZ	STL	—	1.0	2	2	1	1	1
2008-09-08	AZ	SFG	—	1.0	2	1	1	0	1
2008-09-05	AZ	LAD	—	2.0	1	1	1	2	0
2008-09-02	AZ	STL	—	1.0	1	0	0	1	0
2008-09-01	AZ	STL	—	1.1	0	0	0	0	0
2008-04-13	AZ	COL	—	2.0	3	2	2	0	2
2008-04-12	AZ	COL	—	1.0	0	0	0	0	1
2007-09-29	AZ	COL	—	1.2	3	5	5	2	1
2007-09-23	AZ	LAD	—	0.2	0	1	1	2	0
2007-09-14	AZ	LAD	—	0.1	0	0	0	0	0

Fielding Statistics

Career Fielding Totals by Position

Jailen Peguero — Career Fielding Totals by Position
Position	G	GS	PO	A	E	DP
P	25	0	0	6	0	1

Season-by-Season Fielding

Jailen Peguero — Season-by-Season Fielding
Year	Team	Pos	G	GS	PO	A	E	DP
2007	ARI	P	18	0	0	3	0	0
2008	ARI	P	7	0	0	3	0	1

Career Games by Position

Position Diamond

Circle size = games played at each position.

Jailen Peguero — Career Games by Position
Position	Games
Pitcher	25

Frequently Asked Questions about Jailen Peguero

What years did Jailen Peguero play?: Jailen Peguero played in Major League Baseball from 2007 to 2008.
Was Jailen Peguero a pitcher?: Yes. Jailen Peguero pitched in the major leagues, recording 1 wins and 14 strikeouts.
What was Jailen Peguero's career ERA?: Jailen Peguero finished with a 7.50 career ERA, going 1-0 with 14 strikeouts.
How many strikeouts did Jailen Peguero have?: Jailen Peguero recorded 14 career strikeouts.
Is Jailen Peguero in the Hall of Fame?: No. Jailen Peguero has not been inducted into the National Baseball Hall of Fame.
What teams did Jailen Peguero play for?: Jailen Peguero played for the Arizona Diamondbacks.