Ron Mrozinski

Born: 9/16/1930 in White Haven, PA, USA

Died: 10/19/2005 in Washington, NJ, USA

MLB Debut: 1954-06-20 | Final Game: 1955-09-09

Bats: R | Throws: L | Height: 5'11" | Weight: 160 lbs

Full name: Ronald Frank Mrozinski

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Biography

Ron Mrozinski was a professional baseball pitcher who played in Major League Baseball from 1954 to 1955. Born in 1930, Mrozinski made his debut during a period that was characterized by both the tail end of the post-war baseball boom and the beginnings of a more modern game. Over the course of his brief career, he compiled a win-loss record of 1-3, with an earned run average (ERA) of 5.36. He recorded a total of 44 strikeouts and earned one save, showcasing his ability as a reliable option on the mound despite the challenges he faced in his playing years. Mrozinski's career spanned a time when the game was transitioning, and pitchers were increasingly expected to handle a range of roles in the bullpen. His contributions on the field, although modest in terms of statistics, reflected the grit and determination of players during the mid-20th century, an era marked by competitive pitching and evolving strategies. After his retirement, Mrozinski remained a part of baseball history, representing the countless athletes who pursued their dreams in the major leagues, even if for a short time.

Career Pitching Statistics

W	L	G	GS	CG	SHO	SV	IP	H	ER	HR	BB	SO	ERA	Pitcher PIV
1	3	37	5	1	0	1	82.3	87	49	12	44	44	5.36	0

Career ERA 5.36 vs. league average 3.95 across their career seasons — 35.7% worse 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
1954	PHI	NL	1	1	15	4	1	0	0	48.0	49	24	25	26	4.50	3.90 (-15%)	-2047.0
1955	PHI	NL	0	2	22	1	0	0	1	34.3	38	25	19	18	6.55	4.00 (-64%)	-76.1

Career Batting Statistics

G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	OBP	SLG	OPS	PIV
37	16	0	1	0	0	0	0	0	0	10	0.062	0.062	0.062	0.125	0.0

Career AVG .062 vs. league average .260 across their career seasons — 75.9% below league average.

Career OBP .062 vs. league average .333 across their career seasons — 81.2% below league average.

Career SLG .062 vs. league average .392 across their career seasons — 84.1% below league average.

Career OPS 0.125 vs. league average 0.725 across their career seasons — 82.8% 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
1954	PHI	NL	15	12	0	1	0	0	0	0	0	0	7	0.083	—	—	—	—	0.0
1955	PHI	NL	22	4	0	0	0	0	0	0	0	0	3	0.000	—	—	—	—	0.0

Fielding Statistics

Career Fielding Totals by Position

Position	G	GS	PO	A	E	DP
P	37	5	3	8	1	3

Season-by-Season Fielding

Year	Team	Pos	G	GS	PO	A	E	DP
1954	PHI	P	15	4	3	3	0	1
1955	PHI	P	22	1	0	5	1	2

Career Games by Position

Position	Games
Pitcher	37