What years did Jeff Pfeffer play?

Jeff Pfeffer played in Major League Baseball from 1911 to 1924.

Was Jeff Pfeffer a pitcher?

Yes. Jeff Pfeffer pitched in the major leagues, recording 158 wins and 836 strikeouts.

How many home runs did Jeff Pfeffer hit?

Jeff Pfeffer hit 0 career home runs with 180 hits.

What was Jeff Pfeffer's career batting average?

Jeff Pfeffer batted .206 over his career, with 180 hits in 874 at bats.

How many RBI did Jeff Pfeffer have?

Jeff Pfeffer drove in 62 runs in his career.

What was Jeff Pfeffer's career ERA?

Jeff Pfeffer finished with a 2.77 career ERA, going 158-112 with 836 strikeouts.

Jeff Pfeffer

Pitcher · Career Stats, Bio & Records (1911-1924)

Jeff Pfeffer was a pitcher who played in Major League Baseball from 1911 to 1924 for 4 teams, including the St. Louis Browns, a span of 14 seasons. Across 347 career appearances, he went 158-112 with a 2.77 ERA and 836 strikeouts. He also batted .206 with 0 home runs. His career Pitcher PIV — Baseball Data Hub's era-adjusted measure of pitching impact — is 5639.6.

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 8, 2026

W–L 158–112

ERA 2.77

WHIP 1.21

SO 836

Pitcher PIV 5639.6

Position: Pitcher
Bats / Throws: R / R
Height / Weight: 6'3" / 210 lb
Born: 3/4/1888 in Seymour, IL, USA
Died: 8/15/1972 in Chicago, IL, USA
MLB Debut: 1911-04-16
Last Game: 1924-09-26

Full name: Edward Joseph Pfeffer

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Career Pitching Statistics

Jeff Pfeffer — Career Pitching Statistics
W	L	G	GS	CG	SHO	SV	IP	H	ER	HR	BB	SO	ERA	Pitcher PIV
158	112	347	280	194	28	10	2407.3	2,320	742	67	592	836	2.77	5639.6

Career ERA 2.77 vs. league average 3.36 across their career seasons — 17.6% better than league average.

Season-by-Season Pitching

Pitching Career Arc

Click a stat to plot it across every season.

Jeff Pfeffer Stats, Bio & Career Records
Year	Team	Lg	W	L	G	GS	CG	SHO	SV	IP	H	ER	BB	SO	ERA	Lg ERA	Pitcher PIV
1911	SLA	AL	0	0	2	0	0	0	0	10.0	11	8	4	4	7.20	3.37 (-113%)	43.2
1913	BRO	NL	0	1	5	2	1	0	0	24.3	28	9	13	13	3.33	3.07 (-9%)	-335.7
1914	BRO	NL	23	12	43	34	27	3	4	315.0	264	69	91	135	1.97	2.93 (+33%)	157.4
1915	BRO	NL	19	14	40	34	26	6	3	291.7	243	68	76	84	2.10	2.90 (+28%)	-1880.5
1916	BRO	NL	25	11	41	37	30	6	1	328.7	274	70	63	128	1.92	2.78 (+31%)	2270.3
1917	BRO	NL	11	15	30	30	24	3	0	266.0	225	66	66	115	2.23	2.69 (+17%)	1083.2
1918	BRO	NL	1	0	1	1	1	1	0	9.0	2	0	3	1	0.00	2.83 (+100%)	0.0
1919	BRO	NL	17	13	30	30	26	4	0	267.0	270	79	49	92	2.66	3.09 (+14%)	1719.9
1920	BRO	NL	16	9	30	28	20	2	0	215.0	225	72	45	80	3.01	3.45 (+13%)	2227.7
1921	BRO	NL	1	5	6	5	2	0	0	31.7	36	16	9	8	4.55	4.02 (-13%)	328.6
1921	SLN	NL	9	3	18	13	7	1	0	98.7	115	47	28	22	4.29	4.02 (-7%)	-242.6
1922	SLN	NL	19	12	44	32	19	1	2	261.3	286	104	58	83	3.58	4.18 (+14%)	1591.5
1923	SLN	NL	8	9	26	18	7	1	0	152.3	171	68	40	32	4.02	4.03 (avg)	-870.9
1924	SLN	NL	4	5	16	12	3	0	0	78.0	102	46	30	20	5.31	4.13 (-29%)	-504.1
1924	PIT	NL	5	3	15	4	1	0	0	58.7	68	20	17	19	3.07	4.13 (+26%)	51.5
Career · 15 seasons			158	112	347	280	194	28	10	2,407.1	2,320	742	592	836	2.77	—	5,640

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

Jeff Pfeffer — Career Batting Statistics
G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	OBP	SLG	OPS	PIV
352	874	49	180	16	6	0	62	3	27	203	.206	.231	.238	.469	-3,202

Career AVG .206 vs. league average .267 across their career seasons — 22.8% below league average.

Career OBP .231 vs. league average .330 across their career seasons — 30.2% below league average.

Career SLG .238 vs. league average .358 across their career seasons — 33.6% below league average.

Career OPS .469 vs. league average .688 across their career seasons — 31.9% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Jeff Pfeffer Stats, Bio & Career Records
Year	Team	Lg	G	AB	R	H	2B	3B	RBI	SB	BB	SO	AVG	Lg AVG	Lg OBP	Lg SLG	Lg OPS	PIV
1911	SLA	AL	2	4	0	0	0	0	0	0	0	2	.000	—	—	—	—	0.0
1913	BRO	NL	5	7	0	0	0	0	0	0	0	3	.000	—	—	—	—	0.0
1914	BRO	NL	44	116	8	23	2	0	6	0	2	31	.198	.255 (-22%)	.322 (-34%)	.339 (-36%)	.661 (-35%)	-619.7
1915	BRO	NL	40	106	8	27	3	1	8	0	4	26	.255	.250 (+2%)	.318 (-12%)	.332 (-9%)	.651 (-10%)	-182.2
1916	BRO	NL	43	122	5	34	2	2	12	2	4	32	.279	.248 (+12%)	.314 (-4%)	.326 (avg)	.640 (-2%)	-61.9
1917	BRO	NL	31	100	7	13	0	1	6	0	2	28	.130	.248 (-48%)	.312 (-53%)	.323 (-54%)	.635 (-53%)	-771.2
1918	BRO	NL	1	4	0	1	0	0	0	0	0	0	.250	—	—	—	—	0.0
1919	BRO	NL	30	97	6	20	0	1	6	1	7	20	.206	.262 (-21%)	.322 (-20%)	.347 (-35%)	.670 (-27%)	-389.5
1920	BRO	NL	30	74	5	18	0	1	8	0	2	12	.243	.271 (-11%)	.331 (-21%)	.363 (-26%)	.694 (-23%)	-271.3
1921	BRO	NL	6	11	0	0	0	0	0	0	0	0	.000	—	—	—	—	0.0
1921	SLN	NL	18	29	2	4	1	0	1	0	2	7	.138	—	—	—	—	0.0
1922	SLN	NL	45	98	3	24	6	0	12	0	4	17	.245	.285 (-14%)	.345 (-21%)	.397 (-23%)	.743 (-22%)	-361.8
1923	SLN	NL	26	55	3	7	2	0	2	0	0	10	.127	.282 (-55%)	.344 (-63%)	.390 (-58%)	.734 (-60%)	-544.6
1924	SLN	NL	16	26	2	3	0	0	1	0	0	7	.115	—	—	—	—	0.0
1924	PIT	NL	15	25	0	6	0	0	0	0	0	8	.240	—	—	—	—	0.0
Career · 15 seasons			352	874	49	180	16	6	62	3	27	203	.206	—	—	—	—	-3,202

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

Jeff Pfeffer — Playoff Career Batting
G	AB	R	H	2B	3B	HR	RBI	BB	SO	AVG
5	5	0	1	0	0	0	0	0	2	.200

Playoff Batting by Year

Jeff Pfeffer — Playoff Batting by Year
Year	Round	Team	G	AB	R	H	2B	3B	HR	RBI	BB	SO	AVG
1920	WS	BRO	1	1	0	0	0	0	0	0	0	0	.000
1916	WS	BRO	4	4	0	1	0	0	0	0	0	2	.250

Playoff Career Pitching

Jeff Pfeffer — Playoff Career Pitching
W	L	G	GS	SV	IP	H	ER	BB	SO	ERA
0	1	4	1	1	13.7	11	3	6	6	1.98

Playoff Pitching by Year

Jeff Pfeffer — Playoff Pitching by Year
Year	Round	Team	W	L	G	GS	SV	IP	H	ER	BB	SO	ERA
1920	WS	BRO	0	0	1	0	0	3.0	4	1	2	1	3.00
1916	WS	BRO	0	1	3	1	1	10.7	7	2	4	5	1.69

Game Log & Splits

View full game log (699 games) →

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

Batting — Home / Away

Jeff Pfeffer — Batting — Home / Away
Split	G	AB	R	H	HR	RBI	AVG
Home	181	427	24	94	0	33	.220
Away	171	447	25	85	0	32	.190

Pitching — Home / Away

Jeff Pfeffer — Pitching — Home / Away
Split	G	IP	H	ER	BB	SO	ERA
Home	176	1218.0	1148	376	296	456	2.78
Away	171	1182.2	1166	382	295	390	2.91

Last 10 Games — Batting

Jeff Pfeffer — Last 10 Games — Batting
Date	Tm	Opp	Res	AB	H	SO
1924-09-26	PIT	CHC	W	2	0	2
1924-09-21	PIT	BRO	L	1	0	1
1924-09-18	PIT	PHI	L	0	0	0
1924-09-16	PIT	PHI	L	1	1	0
1924-09-12	PIT	BSN	W	2	2	0
1924-09-06	PIT	STL	W	3	0	1
1924-08-27	PIT	PHI	L	1	0	0
1924-08-21	PIT	BSN	L	0	0	0
1924-08-18	PIT	BRO	L	1	0	1
1924-08-11	PIT	PHI	W	3	0	0

Last 10 Games — Pitching

Jeff Pfeffer — Last 10 Games — Pitching
Date	Tm	Opp	Dec	IP	H	R	ER	BB	SO	HR
1924-09-26	PIT	CHC	W	4.2	2	0	0	1	0	0
1924-09-21	PIT	BRO	L	1.1	2	1	1	1	0	0
1924-09-18	PIT	PHI	—	0.0	1	0	0	1	0	0
1924-09-16	PIT	PHI	—	2.1	1	0	0	1	3	0
1924-09-12	PIT	BSN	W	4.2	6	2	1	0	1	0
1924-09-06	PIT	STL	W	6.1	5	0	0	0	6	0
1924-08-27	PIT	PHI	L	2.1	5	4	4	2	1	0
1924-08-21	PIT	BSN	—	0.2	0	0	0	1	0	0
1924-08-18	PIT	BRO	L	5.0	7	3	3	1	3	0
1924-08-11	PIT	PHI	W	7.0	12	4	4	2	0	2

Fielding Statistics

Career Fielding Totals by Position

Jeff Pfeffer — Career Fielding Totals by Position
Position	G	GS	PO	A	E	DP
OF	5	0	1	0	0	0
P	347	0	58	549	23	21

Season-by-Season Fielding

Jeff Pfeffer — Season-by-Season Fielding
Year	Team	Pos	G	PO	A	E	DP
1911	SLA	P	2	0	2	0	0
1913	BRO	P	5	2	6	0	1
1914	BRO	P	43	4	65	2	3
1915	BRO	P	40	9	62	2	0
1916	BRO	OF	4	0	0	0	0
1916	BRO	P	41	8	66	3	3
1917	BRO	OF	1	1	0	0	0
1917	BRO	P	30	5	69	4	0
1918	BRO	P	1	1	4	0	0
1919	BRO	P	30	14	78	5	3
1920	BRO	P	30	4	47	3	2
1921	BRO	P	6	2	9	0	1
1921	SLN	P	18	2	20	1	0
1922	SLN	P	44	4	65	1	3
1923	SLN	P	26	3	31	1	2
1924	SLN	P	16	0	15	0	3
1924	PIT	P	15	0	10	1	0

Career Games by Position

Position Diamond

Circle size = games played at each position.

Jeff Pfeffer Stats, Bio & Career Records
Position	Games
Pitcher	347
Left Field	2
Right Field	1

Most Similar Players

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

Career Spans

Jeff Pfeffer (highlighted) compared to peers across the same era.

Frequently Asked Questions about Jeff Pfeffer

What years did Jeff Pfeffer play?: Jeff Pfeffer played in Major League Baseball from 1911 to 1924.
Was Jeff Pfeffer a pitcher?: Yes. Jeff Pfeffer pitched in the major leagues, recording 158 wins and 836 strikeouts.
How many home runs did Jeff Pfeffer hit?: Jeff Pfeffer hit 0 career home runs with 180 hits.
What was Jeff Pfeffer's career batting average?: Jeff Pfeffer batted .206 over his career, with 180 hits in 874 at bats.
How many RBI did Jeff Pfeffer have?: Jeff Pfeffer drove in 62 runs in his career.
What was Jeff Pfeffer's career ERA?: Jeff Pfeffer finished with a 2.77 career ERA, going 158-112 with 836 strikeouts.