Louis LeRoy

Pitcher · Career Stats, Bio & Records (1905-1910)

Louis LeRoy was a pitcher who played in Major League Baseball from 1905 to 1910 for the New York Yankees and the Boston Red Sox, a span of 6 seasons. Across 15 career appearances, he went 3-1 with a 3.22 ERA and 39 strikeouts. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 468.7.

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 3–1
ERA 3.22
WHIP 1.11
SO 39
Pitcher PIV 468.7
Position
Pitcher
Bats / Throws
R / R
Height / Weight
5'10" / 180 lb
Born
2/18/1879 in Omro, WI, USA
Died
10/10/1944 in Shawano, WI, USA
MLB Debut
1905-09-22
Last Game
1910-04-20

Full name: Louis Paul LeRoy

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Career Pitching Statistics

Louis LeRoy — Career Pitching Statistics
W L G GS CG SHO SV IP H ER HR BB SO ERA Pitcher PIV
3 1 15 5 3 0 1 72.7 66 26 3 15 39 3.22 468.7

Career ERA 3.22 vs. league average 2.76 across their career seasons — 16.6% worse than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Louis LeRoy — Season-by-Season Pitching
Year Team Lg W L G GS CG SHO SV IP H ER BB SO ERA Lg ERA Pitcher PIV
1905 NYA AL 1 1 3 3 2 0 0 24.0 26 10 1 8 3.75 2.82 (-33%) -223.4
1906 NYA AL 2 0 11 2 1 0 1 44.7 33 11 12 28 2.22 2.68 (+17%) 692.1
1910 BOS AL 0 0 1 0 0 0 0 4.0 7 5 2 3 11.25 — 0.0
Career · 3 seasons 3 1 15 5 3 0 1 72.2 66 26 15 39 3.22 — 469

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

Louis LeRoy — Career Batting Statistics
G AB R H 2B 3B HR RBI SB BB SO AVG OBP SLG OPS PIV
15 23 1 3 0 0 0 1 0 1 4 .130 .167 .130 .297 0

Career AVG .130 vs. league average .248 across their career seasons — 47.5% below league average.

Career OBP .167 vs. league average .311 across their career seasons — 46.4% below league average.

Career SLG .130 vs. league average .322 across their career seasons — 59.4% below league average.

Career OPS .297 vs. league average .632 across their career seasons — 53.0% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Louis LeRoy — 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
1905 NYA AL 3 8 0 1 0 0 0 0 0 1 2 .125 — — — — 0.0
1906 NYA AL 11 14 1 2 0 0 0 1 0 0 2 .143 — — — — 0.0
1910 BOS AL 1 1 0 0 0 0 0 0 0 0 0 .000 — — — — 0.0
Career · 3 seasons 15 23 1 3 0 0 0 1 0 1 4 .130 — — — — 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 (30 games) →

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

Batting — Home / Away

Louis LeRoy — Batting — Home / Away
SplitGABRHHRRBIAVG
Home10191301.158
Away540000.000

Pitching — Home / Away

Louis LeRoy — Pitching — Home / Away
SplitGIPHERBBSOERA
Home1058.162712341.08
Away514.180360.00

Last 10 Games — Batting

Louis LeRoy — Last 10 Games — Batting
DateTmOppResABRH2B3BHRRBIBBSO
1910-04-20 BOSMINL 100000000
1906-06-15 NYYCLEL 200000000
1906-06-12 NYYCLEL 100000000
1906-06-02 NYYPHAL 000000000
1906-05-30 NYYMINW 411000101
1906-05-23 NYYCHWW 301000000
1906-05-08 NYYMINL 200000000
1906-05-04 NYYPHAW 100000001
1906-04-25 NYYMINL 100000000
1906-04-19 NYYBOSL 000000000

Last 10 Games — Pitching

Louis LeRoy — Last 10 Games — Pitching
DateTmOppDecIPHRERBBSOHR
1910-04-20 BOSMIN — 4.0797231
1906-06-15 NYYCLE — 2.2420210
1906-06-12 NYYCLE — 4.2000020
1906-06-02 NYYPHA — 2.1420110
1906-05-30 NYYMIN W 9.01060350
1906-05-23 NYYCHW SV 7.1410140
1906-05-08 NYYMIN — 5.2730260
1906-05-04 NYYPHA — 5.0320050
1906-04-25 NYYMIN — 4.0210130
1906-04-19 NYYBOS — 1.0000000

Fielding Statistics

Career Fielding Totals by Position

Louis LeRoy — Career Fielding Totals by Position
Position G GS PO A E DP
P 15 5 4 23 0 0

Season-by-Season Fielding

Louis LeRoy — Season-by-Season Fielding
Year Team Pos G GS PO A E DP
1905 NYA P 3 3 2 5 0 0
1906 NYA P 11 2 2 17 0 0
1910 BOS P 1 0 0 1 0 0

Career Games by Position

Position Diamond

Circle size = games played at each position.

Louis LeRoy — Career Games by Position
Position Games
Pitcher 15

College History

Louis LeRoy — College History
School Name City State Years Attended
Carlisle Indian Industrial School Carlisle PA 1899, 1900, 1901

Frequently Asked Questions about Louis LeRoy

What years did Louis LeRoy play?
Louis LeRoy played in Major League Baseball from 1905 to 1910.
Was Louis LeRoy a pitcher?
Yes. Louis LeRoy pitched in the major leagues, recording 3 wins and 39 strikeouts.
How many home runs did Louis LeRoy hit?
Louis LeRoy hit 0 career home runs with 3 hits.
What was Louis LeRoy's career batting average?
Louis LeRoy batted .130 over his career, with 3 hits in 23 at bats.
How many RBI did Louis LeRoy have?
Louis LeRoy drove in 1 runs in his career.
What was Louis LeRoy's career ERA?
Louis LeRoy finished with a 3.22 career ERA, going 3-1 with 39 strikeouts.