What years did Les Mueller play?

Les Mueller played in Major League Baseball from 1941 to 1945.

Was Les Mueller a pitcher?

Yes. Les Mueller pitched in the major leagues, recording 6 wins and 50 strikeouts.

How many home runs did Les Mueller hit?

Les Mueller hit 1 career home runs with 8 hits.

What was Les Mueller's career batting average?

Les Mueller batted .170 over his career, with 8 hits in 47 at bats.

How many RBI did Les Mueller have?

Les Mueller drove in 4 runs in his career.

What was Les Mueller's career ERA?

Les Mueller finished with a 3.78 career ERA, going 6-8 with 50 strikeouts.

Les Mueller

Pitcher · Career Stats, Bio & Records (1941-1945)

Les Mueller was a pitcher who played in Major League Baseball from 1941 to 1945 for the Detroit Tigers, a span of 5 seasons. Across 30 career appearances, he went 6-8 with a 3.78 ERA and 50 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 12, 2026

W–L 6–8

ERA 3.78

WHIP 1.31

SO 50

Pitcher PIV -2109.9

Position: Pitcher
Bats / Throws: R / R
Height / Weight: 6'3" / 190 lb
Born: 3/4/1919 in Belleville, IL, USA
Died: 10/25/2012 in Belleville, IL, USA
MLB Debut: 1941-08-15
Last Game: 1945-09-23

Full name: Leslie Clyde Mueller

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Career Pitching Statistics

Les Mueller — Career Pitching Statistics
W	L	G	GS	CG	SHO	SV	IP	H	ER	HR	BB	SO	ERA	Pitcher PIV
6	8	30	18	6	2	1	147.2	126	62	9	68	50	3.78	-2109.9

Career ERA 3.78 vs. league average 3.80 across their career seasons — near league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Les Mueller — Season-by-Season Pitching
Year	Team	Lg	W	L	G	GS	CG	SHO	SV	IP	H	ER	BB	SO	ERA	Lg ERA	Pitcher PIV
1941	DET	AL	0	0	4	0	0	0	0	13.0	9	7	10	8	4.85	3.94 (-23%)	-307.3
1945	DET	AL	6	8	26	18	6	2	1	134.2	117	55	58	42	3.68	3.67 (avg)	-1802.6
Career · 2 seasons			6	8	30	18	6	2	1	147.2	126	62	68	50	3.78	—	-2,110

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

Les Mueller — Career Batting Statistics
G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	OBP	SLG	OPS	PIV
30	47	5	8	3	0	1	4	0	2	13	.170	.204	.298	.502	0

Career AVG .170 vs. league average .262 across their career seasons — 34.9% below league average.

Career OBP .204 vs. league average .331 across their career seasons — 38.3% below league average.

Career SLG .298 vs. league average .364 across their career seasons — 18.2% below league average.

Career OPS .502 vs. league average .695 across their career seasons — 27.8% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Les Mueller — Season-by-Season Batting
Year	Team	Lg	G	AB	R	H	2B	HR	RBI	BB	SO	AVG	Lg AVG	Lg OBP	Lg SLG	Lg OPS	PIV
1941	DET	AL	4	3	0	0	0	0	0	0	3	.000	—	—	—	—	0.0
1945	DET	AL	26	44	5	8	3	1	4	2	10	.182	—	—	—	—	0.0
Career · 2 seasons			30	47	5	8	3	1	4	2	13	.170	—	—	—	—	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.

Postseason Statistics

Playoff Career Batting

Les Mueller — Playoff Career Batting
G	AB	R	H	2B	3B	HR	RBI	BB	SO	AVG
1	0	0	0	0	0	0	0	0	0	.000

Playoff Batting by Year

Les Mueller — Playoff Batting by Year
Year	Round	Team	G	AB	R	H	2B	3B	HR	RBI	BB	SO	AVG
1945	WS	DET	1	0	0	0	0	0	0	0	0	0	.000

Playoff Career Pitching

Les Mueller — Playoff Career Pitching
W	L	G	GS	SV	IP	H	ER	BB	SO	ERA
0	0	1	0	0	2.0	0	0	1	1	0.00

Playoff Pitching by Year

Les Mueller — Playoff Pitching by Year
Year	Round	Team	W	L	G	GS	SV	IP	H	ER	BB	SO	ERA
1945	WS	DET	0	0	1	0	0	2.0	0	0	1	1	0.00

Game Log & Splits

View full game log (60 games) →

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

Batting — Home / Away

Les Mueller — Batting — Home / Away
Split	G	AB	R	H	HR	RBI	AVG
Home	13	14	3	3	1	3	.214
Away	17	34	2	5	0	1	.147

Pitching — Home / Away

Les Mueller — Pitching — Home / Away
Split	G	IP	H	ER	BB	SO	ERA
Home	13	48.1	53	25	21	14	4.66
Away	17	99.1	73	37	47	36	3.35

Last 10 Games — Batting

Les Mueller — Last 10 Games — Batting
Date	Tm	Opp	Res	AB	H	RBI	SO
1945-09-23	DET	SLA	L	0	0	0	0
1945-09-19	DET	CLE	L	1	0	0	1
1945-09-14	DET	PHA	W	1	0	0	0
1945-09-10	DET	BOS	L	2	1	1	0
1945-09-06	DET	NYY	W	4	0	0	1
1945-09-02	DET	CLE	L	1	0	0	0
1945-08-31	DET	CLE	L	0	0	0	0
1945-08-29	DET	SLA	L	1	0	0	1
1945-08-20	DET	PHA	W	4	0	0	0
1945-08-12	DET	NYY	W	0	0	0	0

Last 10 Games — Pitching

Les Mueller — Last 10 Games — Pitching
Date	Tm	Opp	Dec	IP	H	R	ER	BB	SO	HR
1945-09-23	DET	SLA	—	0.1	1	1	1	1	0	0
1945-09-19	DET	CLE	L	4.0	3	2	2	2	5	1
1945-09-14	DET	PHA	W	5.0	2	0	0	1	1	0
1945-09-10	DET	BOS	L	5.0	10	7	6	7	1	0
1945-09-06	DET	NYY	W	9.0	3	2	2	4	3	1
1945-09-02	DET	CLE	L	4.1	9	2	2	0	2	0
1945-08-31	DET	CLE	—	0.1	0	0	0	1	0	0
1945-08-29	DET	SLA	—	2.0	0	2	1	4	0	0
1945-08-20	DET	PHA	W	9.0	4	1	1	4	2	0
1945-08-12	DET	NYY	—	2.0	1	2	2	1	3	1

Fielding Statistics

Career Fielding Totals by Position

Les Mueller — Career Fielding Totals by Position
Position	G	GS	PO	A	E	DP
P	30	0	6	23	3	0

Season-by-Season Fielding

Les Mueller — Season-by-Season Fielding
Year	Team	Pos	G	GS	PO	A	E	DP
1941	DET	P	4	0	0	3	0	0
1945	DET	P	26	0	6	20	3	0

Career Games by Position

Position Diamond

Circle size = games played at each position.

Les Mueller — Career Games by Position
Position	Games
Pitcher	30

Les Mueller: the record in brief

Les Mueller played a first major league game on August 15, 1941 and a last one on September 23, 1945. Every season row on the page belongs to the Detroit Tigers, from 1941 through 1945. The bio lists Mueller as a pitcher who both batted and threw right-handed. Mueller is listed at 6-foot-3 and 190 pounds. The birth record reads March 4, 1919, in Belleville, IL, USA. The bio records the death on October 25, 2012, in Belleville, IL, USA. Les Mueller was the playing name; the full given name is Leslie Clyde.

Mueller's career pitching line is 6 wins, 8 losses and a 3.78 ERA over 30 appearances. Mueller had 50 strikeouts. Mueller's 3.78 ERA was close to the 3.80 league figure for those seasons. The best win total was 6, in 1945. Among the heaviest workloads, the lowest ERA was 3.68 in 1945, when the league's was 3.67.

Pitching in the playoffs, Mueller went 0-0 with a 0.00 ERA in 1 games. Those appearances came in 1945.

Frequently Asked Questions about Les Mueller

What years did Les Mueller play?: Les Mueller played in Major League Baseball from 1941 to 1945.
Was Les Mueller a pitcher?: Yes. Les Mueller pitched in the major leagues, recording 6 wins and 50 strikeouts.
How many home runs did Les Mueller hit?: Les Mueller hit 1 career home runs with 8 hits.
What was Les Mueller's career batting average?: Les Mueller batted .170 over his career, with 8 hits in 47 at bats.
How many RBI did Les Mueller have?: Les Mueller drove in 4 runs in his career.
What was Les Mueller's career ERA?: Les Mueller finished with a 3.78 career ERA, going 6-8 with 50 strikeouts.