Bob O'Brien

Born: 4/23/1949 in Pittsburgh, PA, USA

MLB Debut: 1971-04-11 | Final Game: 1971-07-07

Bats: L | Throws: L | Height: 5'10" | Weight: 170 lbs

Full name: Robert Allen O'Brien

📊 Compare This Player 📈 View Career Timeline

Biography

Bob O'Brien was a professional baseball pitcher born in 1949, whose career spanned a brief period in the early 1970s. He made his Major League debut on April 11, 1971, showcasing his talents during a time when the game was transitioning from the deadball era to a more power-focused style of play. O'Brien played for a short duration, concluding his major league tenure on July 7, 1971. Throughout his career, O'Brien compiled a record of 2 wins and 2 losses, with an earned run average (ERA) of 3.0, reflecting his ability to keep runs at bay during his appearances. He struck out 15 batters, demonstrating flashes of his strikeout potential, though he did not register any saves. Despite the limited span of his professional career, O'Brien's contributions on the mound during this pivotal era of baseball highlight the challenges and competitiveness faced by pitchers of his time.

Career Pitching Statistics

W	L	G	GS	CG	SHO	SV	IP	H	ER	HR	BB	SO	ERA	Pitcher PIV
2	2	14	4	1	1	0	42.0	42	14	4	13	15	3.00	0

Career ERA 3.00 vs. league average 3.47 across their career seasons — 13.5% better than league average.

Season-by-Season Pitching

Year	Team	Lg	W	L	G	GS	CG	SHO	SV	IP	H	ER	BB	SO	ERA	Lg ERA	Pitcher PIV
1971	LAD	NL	2	2	14	4	1	1	0	42.0	42	14	13	15	3.00	3.47 (+14%)	-

Career Batting Statistics

G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	OBP	SLG	OPS	PIV
14	9	0	1	0	0	0	0	0	0	0	0.111	0.111	0.111	0.222	0.0

Career AVG .111 vs. league average .249 across their career seasons — 55.4% below league average.

Career OBP .111 vs. league average .317 across their career seasons — 64.9% below league average.

Career SLG .111 vs. league average .365 across their career seasons — 69.6% below league average.

Career OPS 0.222 vs. league average 0.682 across their career seasons — 67.4% 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
1971	LAD	NL	14	9	0	1	0	0	0	0	0	0	0	0.111	—	—	—	—	0.0

Fielding Statistics

Career Fielding Totals by Position

Position	G	GS	PO	A	E	DP
P	14	4	1	3	0	0

Season-by-Season Fielding

Year	Team	Pos	G	GS	PO	A	E	DP
1971	LAN	P	14	4	1	3	0	0

Career Games by Position

Position	Games
Pitcher	14

College History

School Name	City	State	Years Attended
Fresno City College	Fresno	CA	1968, 1969