What years did Guillermo Moscoso play?

Guillermo Moscoso played in Major League Baseball from 2009 to 2013.

Was Guillermo Moscoso a pitcher?

Yes. Guillermo Moscoso pitched in the major leagues, recording 13 wins and 166 strikeouts.

How many home runs did Guillermo Moscoso hit?

Guillermo Moscoso hit 0 career home runs with 2 hits.

What teams did Guillermo Moscoso play for?

Guillermo Moscoso played for 4 teams: the Texas Rangers (2009–2010), the Oakland Athletics (2011), the Colorado Rockies (2012), and the San Francisco Giants (2013).

What were Guillermo Moscoso's career stats?

In 70 games, Guillermo Moscoso went 13-14 with a 4.28 ERA, 166 strikeouts, and 222.2 innings pitched.

What was Guillermo Moscoso's salary?

Guillermo Moscoso's recorded salary was $504,250 in 2013.

What position did Guillermo Moscoso play?

Guillermo Moscoso played primarily as a pitcher, the position where he appeared in the most games.

How tall was Guillermo Moscoso and how much did he weigh?

Guillermo Moscoso was listed at 6 feet 1 inch and 200 pounds.

What was Guillermo Moscoso's career ERA?

Guillermo Moscoso finished with a 4.28 career ERA, going 13-14 with 166 strikeouts.

How many strikeouts did Guillermo Moscoso have?

Guillermo Moscoso recorded 166 career strikeouts.

Is Guillermo Moscoso in the Hall of Fame?

No. Guillermo Moscoso has not been inducted into the National Baseball Hall of Fame.

Guillermo Moscoso

Pitcher · Career Stats, Bio & Records (2009-2013)

Guillermo Moscoso was a pitcher who played in Major League Baseball from 2009 to 2013 for 4 teams, including the Texas Rangers, a span of 5 seasons. Across 70 career appearances, he went 13-14 with a 4.28 ERA and 166 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 October 15, 2026

W–L 13–14

ERA 4.28

WHIP 1.31

SO 166

Pitcher PIV -2598.2

Position: Pitcher
Bats / Throws: R / R
Height / Weight: 6'1" / 200 lb
Born: 11/14/1983 in Maracay, Aragua, Venezuela
MLB Debut: 2009-05-30
Last Game: 2013-09-29

Full name: Guillermo Alejandro Moscoso

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Career Pitching Statistics

Guillermo Moscoso — Career Pitching Statistics
W	L	G	GS	CG	SHO	SV	IP	H	ER	HR	BB	SO	ERA	Pitcher PIV
13	14	70	26	0	0	0	222.2	206	106	28	86	166	4.28	-2598.2

Career ERA 4.28 vs. league average 4.04 across their career seasons — 5.9% worse than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Guillermo Moscoso — Season-by-Season Pitching
Year	Team	Lg	W	L	G	GS	IP	H	ER	BB	SO	ERA	Lg ERA	Pitcher PIV
2009	TEX	AL	0	0	10	0	14.0	15	5	6	12	3.21	4.32 (+26%)	179.2
2010	TEX	AL	0	0	1	0	0.2	2	2	2	2	27.00	—	0.0
2011	OAK	AL	8	10	23	21	128.0	102	48	38	74	3.38	3.94 (+14%)	-915.5
2012	COL	NL	3	2	23	3	50.0	67	34	19	47	6.12	4.01 (-52%)	-600.1
2013	SFN	NL	2	2	13	2	30.0	20	17	21	31	5.10	3.87 (-32%)	-1261.8
Career · 5 seasons			13	14	70	26	222.2	206	106	86	166	4.28	—	-2,598

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

Guillermo Moscoso — Career Batting Statistics
G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	OBP	SLG	OPS	PIV
70	15	0	2	1	0	0	1	0	0	8	.133	.133	.200	.333	0

Career AVG .133 vs. league average .257 across their career seasons — 48.0% below league average.

Career OBP .133 vs. league average .323 across their career seasons — 58.7% below league average.

Career SLG .200 vs. league average .404 across their career seasons — 50.5% below league average.

Career OPS .333 vs. league average .727 across their career seasons — 54.2% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Guillermo Moscoso — Season-by-Season Batting
Year	Team	Lg	G	AB	H	2B	RBI	SO	AVG	Lg AVG	Lg OBP	Lg SLG	Lg OPS	PIV
2009	TEX	AL	10	0	0	0	0	0	.000	—	—	—	—	0.0
2010	TEX	AL	1	0	0	0	0	0	.000	—	—	—	—	0.0
2011	OAK	AL	23	2	0	0	0	2	.000	—	—	—	—	0.0
2012	COL	NL	23	11	2	1	1	5	.182	—	—	—	—	0.0
2013	SFN	NL	13	2	0	0	0	1	.000	—	—	—	—	0.0
Career · 5 seasons			70	15	2	1	1	8	.133	—	—	—	—	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 (140 games) →

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

Batting — Home / Away

Guillermo Moscoso — Batting — Home / Away
Split	G	AB	R	H	HR	RBI	AVG
Home	35	9	0	2	0	1	.222
Away	35	6	0	0	0	0	.000

Pitching — Home / Away

Guillermo Moscoso — Pitching — Home / Away
Split	G	IP	H	ER	BB	SO	ERA
Home	35	123.0	112	61	44	94	4.46
Away	35	99.2	94	45	42	72	4.06

Last 10 Games — Batting

Guillermo Moscoso — Last 10 Games — Batting
Date	Tm	Opp	Res	AB	SO
2013-09-29	SFG	SDP	W	1	1
2013-09-21	SFG	NYY	L	0	0
2013-09-11	SFG	COL	W	0	0
2013-09-02	SFG	SDP	L	0	0
2013-08-26	SFG	COL	L	0	0
2013-08-22	SFG	PIT	L	0	0
2013-08-19	SFG	BOS	L	1	0
2013-08-18	SFG	MIA	L	0	0
2013-08-15	SFG	WAS	W	0	0
2013-08-13	SFG	WAS	L	0	0

Last 10 Games — Pitching

Guillermo Moscoso — Last 10 Games — Pitching
Date	Tm	Opp	Dec	IP	H	R	ER	BB	SO	HR
2013-09-29	SFG	SDP	—	4.1	4	5	5	4	4	1
2013-09-21	SFG	NYY	—	1.1	1	1	1	1	2	1
2013-09-11	SFG	COL	W	2.0	1	0	0	1	0	0
2013-09-02	SFG	SDP	—	2.0	0	0	0	1	2	0
2013-08-26	SFG	COL	—	2.0	1	0	0	0	1	0
2013-08-22	SFG	PIT	L	0.2	0	3	3	2	2	0
2013-08-19	SFG	BOS	—	3.0	0	0	0	0	4	0
2013-08-18	SFG	MIA	—	1.1	1	1	1	1	4	0
2013-08-15	SFG	WAS	—	2.0	2	0	0	3	3	0
2013-08-13	SFG	WAS	L	2.0	2	2	2	2	2	1

Fielding Statistics

Career Fielding Totals by Position

Guillermo Moscoso — Career Fielding Totals by Position
Position	G	GS	PO	A	E	DP
P	70	26	10	18	3	4

Season-by-Season Fielding

Guillermo Moscoso — Season-by-Season Fielding
Year	Team	Pos	G	GS	PO	A	E	DP
2009	TEX	P	10	0	0	1	0	0
2010	TEX	P	1	0	0	0	0	0
2011	OAK	P	23	21	7	6	2	1
2012	COL	P	23	3	3	9	0	2
2013	SFN	P	13	2	0	2	1	1

Career Games by Position

Position Diamond

Circle size = games played at each position.

Guillermo Moscoso — Career Games by Position
Position	Games
Pitcher	70

Salary History

Guillermo Moscoso's recorded salaries total $504,250 over 1 season, in 2013. This total is partial: the salary data covers 1985 to 2016, and Moscoso's career ran from 2009 to 2013. No salary is recorded for 2009, 2010, 2011, and 2012.

Guillermo Moscoso — Salary History
Year	Team	League	Salary
2013	CHN	NL	$504,250
Total recorded salary (partial)			$504,250

Guillermo Moscoso: the record in brief

May 30, 2009 and September 29, 2013 bracket Guillermo Moscoso's time in the majors: the debut and the last game on record. Moscoso played for the Texas Rangers (2009 to 2010), the Oakland Athletics (2011), the Colorado Rockies (2012), and the San Francisco Giants (2013). Moscoso played primarily as a pitcher and threw and hit right-handed. The bio adds a birth date on November 14, 1983, in Maracay, Aragua, Venezuela and a listed size of 6 feet, 1 inch and 200 pounds. The bio lists the given name Guillermo Alejandro.

Moscoso's career pitching line is 13 wins, 14 losses and a 4.28 ERA over 70 appearances. The same table counts 166 strikeouts. The league ERA over Moscoso's seasons was 4.04, so the 4.28 figure ran 5.9% worse than average. Moscoso won 8 games in 2011, the most of any season listed. Among the heaviest workloads, the lowest ERA was 3.38 in 2011, when the league's was 3.94.

Frequently Asked Questions about Guillermo Moscoso

What years did Guillermo Moscoso play?: Guillermo Moscoso played in Major League Baseball from 2009 to 2013.
Was Guillermo Moscoso a pitcher?: Yes. Guillermo Moscoso pitched in the major leagues, recording 13 wins and 166 strikeouts.
How many home runs did Guillermo Moscoso hit?: Guillermo Moscoso hit 0 career home runs with 2 hits.
What teams did Guillermo Moscoso play for?: Guillermo Moscoso played for 4 teams: the Texas Rangers (2009–2010), the Oakland Athletics (2011), the Colorado Rockies (2012), and the San Francisco Giants (2013).
What were Guillermo Moscoso's career stats?: In 70 games, Guillermo Moscoso went 13-14 with a 4.28 ERA, 166 strikeouts, and 222.2 innings pitched.
How much did Guillermo Moscoso earn in his career?: Guillermo Moscoso's recorded salaries total $504,250 over 1 season, in 2013. This total is partial: the salary data covers 1985 to 2016, and Moscoso's career ran from 2009 to 2013. No salary is recorded for 2009, 2010, 2011, and 2012.
What was Guillermo Moscoso's salary?: Guillermo Moscoso's recorded salary was $504,250 in 2013.
What position did Guillermo Moscoso play?: Guillermo Moscoso played primarily as a pitcher, the position where he appeared in the most games.
How tall was Guillermo Moscoso and how much did he weigh?: Guillermo Moscoso was listed at 6 feet 1 inch and 200 pounds.
What was Guillermo Moscoso's career ERA?: Guillermo Moscoso finished with a 4.28 career ERA, going 13-14 with 166 strikeouts.
How many strikeouts did Guillermo Moscoso have?: Guillermo Moscoso recorded 166 career strikeouts.
Is Guillermo Moscoso in the Hall of Fame?: No. Guillermo Moscoso has not been inducted into the National Baseball Hall of Fame.