Connie Marrero

Pitcher · Career Stats, Bio & Records (1950-1954)

Connie Marrero was a pitcher who played in Major League Baseball from 1950 to 1954 for the Washington Senators, a span of 5 seasons. Across 118 career appearances, he went 39-40 with a 3.67 ERA and 297 strikeouts. He also batted .114 with 0 home runs. Connie Marrero was an All-Star. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 3895.5.

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

W–L 39–40
ERA 3.67
WHIP 1.34
SO 297
Pitcher PIV 3895.5
Position
Pitcher
Bats / Throws
R / R
Height / Weight
5'5" / 158 lb
Born
4/25/1911 in Sagua La Grande, Villa Clara, Cuba
Died
4/23/2014 in Havana, La Habana, Cuba
MLB Debut
1950-04-21
Last Game
1954-09-07
Awards
All-Star

Full name: Conrado Eugenio Marrero

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Career Pitching Statistics

Connie Marrero — Career Pitching Statistics
W L G GS CG SHO SV IP H ER HR BB SO ERA Pitcher PIV
39 40 118 94 51 7 3 735.1 736 300 60 249 297 3.67 3895.5

Career ERA 3.67 vs. league average 4.03 across their career seasons — 8.8% better than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Connie Marrero — Season-by-Season Pitching
Year Team Lg W L G GS CG SHO SV IP H ER BB SO ERA Lg ERA Pitcher PIV
1950 WS1 AL 6 10 27 19 8 1 1 152.0 159 76 55 63 4.50 4.36 (-3%) -56.1
1951 WS1 AL 11 9 25 25 16 2 0 187.0 198 81 71 66 3.90 4.04 (+3%) 2544.7
1952 WS1 AL 11 8 22 22 16 2 0 184.1 175 59 53 77 2.88 3.70 (+22%) 2803.9
1953 WS1 AL 8 7 22 20 10 2 2 145.2 130 49 48 65 3.03 4.14 (+27%) 366.8
1954 WS1 AL 3 6 22 8 1 0 0 66.1 74 35 22 26 4.75 3.90 (-22%) -1763.8
Career · 5 seasons 39 40 118 94 51 7 3 735.1 736 300 249 297 3.67 — 3,896

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

Connie Marrero — Career Batting Statistics
G AB R H 2B 3B HR RBI SB BB SO AVG OBP SLG OPS PIV
118 236 17 27 1 0 0 9 0 23 53 .114 .193 .119 .312 -1,936

Career AVG .114 vs. league average .261 across their career seasons — 56.2% below league average.

Career OBP .193 vs. league average .336 across their career seasons — 42.5% below league average.

Career SLG .119 vs. league average .389 across their career seasons — 69.5% below league average.

Career OPS .312 vs. league average .725 across their career seasons — 57.0% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Connie Marrero — Season-by-Season Batting
Year Team Lg G AB R H 2B 3B HR RBI SB BB SO AVG Lg AVG Lg OBP Lg SLG Lg OPS PIV
1950 WS1 AL 27 49 4 6 1 0 0 3 0 7 12 .122 — — — — -399.9
1951 WS1 AL 25 61 7 10 0 0 0 2 0 7 15 .164 .260 (-37%) .336 (-26%) .385 (-57%) .721 (-43%) -403.6
1952 WS1 AL 22 63 0 5 0 0 0 3 0 2 15 .079 .252 (-69%) .326 (-67%) .369 (-79%) .696 (-73%) -714.1
1953 WS1 AL 22 48 5 6 0 0 0 1 0 5 8 .125 — — — — -418.9
1954 WS1 AL 22 15 1 0 0 0 0 0 0 2 3 .000 — — — — 0.0
Career · 5 seasons 118 236 17 27 1 0 0 9 0 23 53 .114 — — — — -1,936

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 (236 games) →

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

Batting — Home / Away

Connie Marrero — Batting — Home / Away
SplitGABRHHRRBIAVG
Home65122101507.123
Away5311471202.105

Pitching — Home / Away

Connie Marrero — Pitching — Home / Away
SplitGIPHERBBSOERA
Home65407.03981511391723.34
Away53328.13381481101254.06

Last 10 Games — Batting

Connie Marrero — Last 10 Games — Batting
DateTmOppResABRH2B3BHRRBIBBSO
1954-09-07 MINPHAW 000000000
1954-08-24 MINCHWL 000000000
1954-08-18 MINBOSL 000000000
1954-08-17 MINBOSL 000000000
1954-08-11 MINBOSL 100000001
1954-08-04 MINDETL 300000000
1954-07-31 MINCLEL 000000000
1954-07-05 MINBOSL 100000001
1954-06-30 MINPHAL 000000000
1954-06-26 MINDETL 100000000

Last 10 Games — Pitching

Connie Marrero — Last 10 Games — Pitching
DateTmOppDecIPHRERBBSOHR
1954-09-07 MINPHA — 3.0433000
1954-08-24 MINCHW — 2.0211111
1954-08-18 MINBOS L 2.0311100
1954-08-17 MINBOS — 1.0000120
1954-08-11 MINBOS L 4.0644042
1954-08-04 MINDET L 7.11344331
1954-07-31 MINCLE — 1.0000010
1954-07-05 MINBOS L 5.0644411
1954-06-30 MINPHA L 1.2111001
1954-06-26 MINDET L 3.1544022

Fielding Statistics

Career Fielding Totals by Position

Connie Marrero — Career Fielding Totals by Position
Position G GS PO A E DP
P 118 8 22 89 6 5

Season-by-Season Fielding

Connie Marrero — Season-by-Season Fielding
Year Team Pos G GS PO A E DP
1950 WS1 P 27 0 4 14 0 0
1951 WS1 P 25 0 5 29 3 1
1952 WS1 P 22 0 7 18 1 2
1953 WS1 P 22 0 5 19 2 1
1954 WS1 P 22 8 1 9 0 1

Career Games by Position

Position Diamond

Circle size = games played at each position.

Connie Marrero — Career Games by Position
Position Games
Pitcher 118

Award Voting History

Connie Marrero — Award Voting History
Year Award League Finish Points Won Points Max Votes First
1952 Most Valuable Player AL 34th 1.0 336 0

Most Similar Players

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

Career Spans

Connie Marrero (highlighted) compared to peers across the same era.

  1. 98
    Doc Sykes
    28-31, 3.61 ERA
  2. 97
    Ray Crone
    30-30, 3.87 ERA
  3. 96
    Dan Griner
    28-55, 3.49 ERA
  4. 96
    Dolly Gray
    15-51, 3.52 ERA
  5. 95
    Jim Jeffries
    50-51, 3.86 ERA
  6. 95
    Monty Stratton
    36-23, 3.71 ERA

Connie Marrero: the record in brief

According to the bio, Connie Marrero debuted on April 21, 1950 and played a final game on September 7, 1954. The team column never changes: it is the Washington Senators from 1950 to 1954. Marrero played primarily as a pitcher and batted and threw right-handed. The bio adds a birth date on April 25, 1911, in Sagua La Grande, Villa Clara, Cuba and a listed size of 5 feet, 5 inches and 158 pounds. Marrero died on April 23, 2014, in Havana, La Habana, Cuba. Connie Marrero was the playing name; the full given name is Conrado Eugenio.

The pitching table credits Marrero with a 39-40 record and a 3.67 ERA in 118 games. Also on Marrero's record: 297 strikeouts, 51 complete games, and 7 shutouts. Against a 4.03 league ERA for the same years, Marrero was 8.8% better. Marrero won 11 games in 1951, the most of any season listed. 1952 produced Marrero's most strikeouts, 77.

Frequently Asked Questions about Connie Marrero

What years did Connie Marrero play?
Connie Marrero played in Major League Baseball from 1950 to 1954.
Was Connie Marrero a pitcher?
Yes. Connie Marrero pitched in the major leagues, recording 39 wins and 297 strikeouts.
How many home runs did Connie Marrero hit?
Connie Marrero hit 0 career home runs with 27 hits.
What teams did Connie Marrero play for?
Connie Marrero played for one team, the Washington Senators (1950–1954).
What awards did Connie Marrero win?
Connie Marrero was selected to 1 All-Star Game.
What were Connie Marrero's career stats?
In 118 games, Connie Marrero went 39-40 with a 3.67 ERA, 297 strikeouts, 735.1 innings pitched, and 3 saves. At the plate he had 27 hits and 0 home runs.
What position did Connie Marrero play?
Connie Marrero played primarily as a pitcher, the position where he appeared in the most games.
How tall was Connie Marrero and how much did he weigh?
Connie Marrero was listed at 5 feet 5 inches and 158 pounds.
What was Connie Marrero's career ERA?
Connie Marrero finished with a 3.67 career ERA, going 39-40 with 297 strikeouts.
How many strikeouts did Connie Marrero have?
Connie Marrero recorded 297 career strikeouts.
Is Connie Marrero in the Hall of Fame?
No. Connie Marrero has not been inducted into the National Baseball Hall of Fame.
How many All-Star Games did Connie Marrero make?
Connie Marrero was selected to 1 All-Star Game.