Johnny O'Brien

Born: 12/11/1930 in South Amboy, NJ, USA

Died: 6/13/2025 in Seattle, WA, USA

MLB Debut: 1953-04-19 | Final Game: 1959-07-19

Bats: R | Throws: R | Height: 5'9" | Weight: 170 lbs

Full name: John Thomas O'Brien

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Biography

Johnny O'Brien was a professional baseball pitcher who played in Major League Baseball from 1953 to 1959. Born in 1930, O'Brien made his debut during a transformative era in baseball, marked by an increasing emphasis on power hitting and the early integration of the sport. Throughout his career, he played for several teams, showcasing his skills primarily as a right-handed pitcher. O'Brien concluded his MLB career with a record of 1-3 and an earned run average (ERA) of 5.61. Over the course of his time in the major leagues, he recorded 30 strikeouts but did not secure any saves. While his statistics may not reflect the dominance seen in some of his contemporaries, O'Brien's contributions to his teams were significant during a period of evolving pitching styles and strategies. His experience and dedication to the game exemplified the resilience and determination characteristic of many players from the era.

Career Pitching Statistics

W	L	G	GS	CG	SHO	SV	IP	H	ER	HR	BB	SO	ERA	Pitcher PIV
1	3	25	1	0	0	0	61.0	61	38	9	35	30	5.61	0

Career ERA 5.61 vs. league average 3.89 across their career seasons — 44.3% worse than league average.

Season-by-Season Pitching

Year	Team	Lg	W	L	G	GS	IP	H	ER	BB	SO	ERA	Lg ERA	Pitcher PIV
1956	PIT	NL	1	0	8	0	19.0	8	6	9	9	2.84	3.96 (+28%)	-268.4
1957	PIT	NL	0	3	16	1	40.0	46	27	24	19	6.08	3.83 (-58%)	-1839.3
1958	STL	NL	0	0	1	0	2.0	7	5	2	2	22.50	—	-

Career Batting Statistics

G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	OBP	SLG	OPS	PIV
339	815	90	204	35	5	4	59	2	59	82	0.250	0.306	0.320	0.626	-2103.5

Career AVG .250 vs. league average .259 across their career seasons — near league average.

Career OBP .306 vs. league average .329 across their career seasons — 6.9% below league average.

Career SLG .320 vs. league average .394 across their career seasons — 18.8% below league average.

Career OPS 0.626 vs. league average 0.723 across their career seasons — 13.4% below league average.

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
1953	PIT	NL	89	279	28	69	13	2	2	22	1	21	36	0.247	.264 (-6%)	.335 (-8%)	.397 (-17%)	.733 (-13%)	-680.6
1955	PIT	NL	84	278	22	83	15	2	1	25	1	20	19	0.299	.258 (+15%)	.332 (+4%)	.393 (-4%)	.726 (avg)	-29.5
1956	PIT	NL	73	104	13	18	1	0	0	3	0	5	7	0.173	.258 (-33%)	.331 (-37%)	.397 (-54%)	.728 (-46%)	-887.0
1957	PIT	NL	34	35	7	11	2	1	0	1	0	1	4	0.314	—	—	—	—	0.0
1958	PIT	NL	3	1	1	0	0	0	0	0	0	0	1	0.000	—	—	—	—	0.0
1958	STL	NL	12	2	3	0	0	0	0	0	0	1	0	0.000	—	—	—	—	0.0
1959	ATL	NL	44	116	16	23	4	0	1	8	0	11	15	0.198	.256 (-23%)	.323 (-16%)	.392 (-34%)	.715 (-26%)	-506.5

Fielding Statistics

Career Fielding Totals by Position

Position	G	GS	PO	A	E	DP
2B	248	137	497	611	29	142
P	25	1	2	4	3	0
SS	15	7	12	14	3	2

Season-by-Season Fielding

Year	Team	Pos	G	GS	PO	A	E	DP
1953	PIT	2B	77	0	172	210	7	48
1953	PIT	SS	1	0	0	0	0	0
1955	PIT	2B	78	75	185	220	13	53
1956	PIT	2B	53	28	67	98	7	17
1956	PIT	P	8	0	0	0	2	0
1956	PIT	SS	1	0	0	1	0	0
1957	PIT	2B	2	0	1	0	0	0
1957	PIT	P	16	1	2	4	1	0
1957	PIT	SS	8	7	11	12	3	2
1958	SLN	2B	1	0	2	0	0	0
1958	SLN	P	1	0	0	0	0	0
1958	SLN	SS	5	0	1	1	0	0
1959	ML1	2B	37	34	70	83	2	24