What years did Mario Diaz play?

Mario Diaz played in Major League Baseball from 1987 to 1995.

Was Mario Diaz a pitcher?

No. Mario Diaz was a position player (Shortstop).

How many home runs did Mario Diaz hit?

Mario Diaz hit 5 career home runs with 198 hits.

What was Mario Diaz's career batting average?

Mario Diaz batted .256 over his career, with 198 hits in 773 at bats.

How many RBI did Mario Diaz have?

Mario Diaz drove in 84 runs in his career.

Is Mario Diaz in the Hall of Fame?

No. Mario Diaz has not been inducted into the National Baseball Hall of Fame.

Mario Diaz

Shortstop · Career Stats, Bio & Records (1987-1995)

Mario Diaz was a shortstop who played in Major League Baseball from 1987 to 1995 for 4 teams, including the Seattle Mariners, a span of 9 seasons. In 374 career games, he hit .256 with 198 hits, 5 home runs, and 84 RBI.

AVG (Batting Average):: Hits divided by at bats. .300 is the traditional mark of an excellent hitter.
HR (Home Runs):: Hits on which the batter circled the bases and scored, almost always by clearing the outfield fence.
RBI (Runs Batted In):: Runs that scored as a direct result of a batter's plate appearance.
OPS (On-Base Plus Slugging):: On-base percentage plus slugging percentage, the quickest single summary of offensive value. .900 or better is star-level.

Data updated October 12, 2026

AVG .256

HR 5

RBI 84

H 198

OPS .618

PIV -1,523

Position: Shortstop
Bats / Throws: R / R
Height / Weight: 5'10" / 145 lb
Born: 1/10/1962 in Humacao, P.R.
MLB Debut: 1987-09-12
Last Game: 1995-10-01

Full name: Mario Rafael Diaz

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Career Batting Statistics

Mario Diaz — Career Batting Statistics
G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	OBP	SLG	OPS	PIV
374	773	84	198	31	4	5	84	1	41	70	.256	.292	.326	.618	-1,523

Career AVG .256 vs. league average .260 across their career seasons — near league average.

Career OBP .292 vs. league average .327 across their career seasons — 10.7% below league average.

Career SLG .326 vs. league average .395 across their career seasons — 17.4% below league average.

Career OPS .618 vs. league average .722 across their career seasons — 14.4% below league average.

Season-by-Season Batting

Career Arc

Click a stat to plot it across every season.

Mario Diaz Stats, Bio & Career Records
Year	Team	Lg	G	AB	R	H	2B	3B	HR	RBI	SB	BB	SO	AVG	Lg AVG	Lg OBP	Lg SLG	Lg OPS	PIV
1987	SEA	AL	11	23	4	7	0	1	0	3	0	0	4	.304	—	—	—	—	0.0
1988	SEA	AL	28	72	6	22	5	0	0	9	0	3	5	.306	.254 (+20%)	.317 (+3%)	.377 (-1%)	.695 (+1%)	0.3
1989	SEA	AL	52	74	9	10	0	0	1	7	0	7	7	.135	.254 (-47%)	.319 (-34%)	.375 (-53%)	.694 (-45%)	-496.3
1990	NYN	NL	16	22	0	3	1	0	0	1	0	0	3	.136	—	—	—	—	0.0
1991	TEX	AL	96	182	24	48	7	0	1	22	0	15	18	.264	.255 (+3%)	.323 (-2%)	.384 (-17%)	.708 (-10%)	-263.2
1992	TEX	AL	19	31	2	7	1	0	0	1	0	1	2	.226	—	—	—	—	0.0
1993	TEX	AL	71	205	24	56	10	1	2	24	1	8	13	.273	.265 (+3%)	.332 (-11%)	.403 (-10%)	.735 (-11%)	-414.9
1994	FLO	NL	32	77	10	25	4	2	0	11	0	6	6	.325	.269 (+20%)	.338 (+11%)	.424 (+1%)	.763 (+6%)	73.9
1995	FLO	NL	49	87	5	20	3	0	1	6	0	1	12	.230	.266 (-14%)	.337 (-29%)	.417 (-28%)	.755 (-29%)	-423.1
Career · 9 seasons			374	773	84	198	31	4	5	84	1	41	70	.256	—	—	—	—	-1,523

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.

Game Log & Splits

View full game log (374 games) →

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

Batting — Home / Away

Mario Diaz — Batting — Home / Away
Split	G	AB	R	H	HR	RBI	AVG
Home	189	383	41	91	2	33	.238
Away	185	390	43	107	3	51	.274

Last 10 Games — Batting

Mario Diaz — Last 10 Games — Batting
Date	Tm	Opp	Res	AB	H	RBI	SO
1995-10-01	MIA	PHI	W	1	1	0	0
1995-09-30	MIA	PHI	L	1	1	0	0
1995-09-25	MIA	WSN	L	1	0	0	0
1995-09-24	MIA	NYN	W	1	0	0	0
1995-09-18	MIA	PHI	L	1	0	0	1
1995-09-16	MIA	COL	L	1	0	0	0
1995-09-10	MIA	ATL	W	0	0	0	0
1995-09-04	MIA	PIT	W	1	0	0	0
1995-09-02	MIA	HOU	L	1	0	0	0
1995-08-31	MIA	CHC	L	1	1	1	0

Fielding Statistics

Career Fielding Totals by Position

Mario Diaz — Career Fielding Totals by Position
Position	G	GS	PO	A	E	DP
1B	2	0	3	1	0	0
2B	58	21	55	78	2	25
3B	39	22	27	42	1	7
SS	228	152	237	414	19	83

Season-by-Season Fielding

Mario Diaz — Season-by-Season Fielding
Year	Team	Pos	G	GS	PO	A	E	DP
1987	SEA	SS	10	6	10	25	1	6
1988	SEA	1B	1	0	2	1	0	0
1988	SEA	2B	4	1	3	6	0	2
1988	SEA	3B	1	1	2	0	0	0
1988	SEA	SS	21	18	24	40	1	9
1989	SEA	2B	14	5	8	14	0	4
1989	SEA	3B	3	0	1	0	0	1
1989	SEA	SS	37	21	26	40	5	5
1990	NYN	2B	1	0	0	0	0	0
1990	NYN	SS	10	4	5	18	1	1
1991	TEX	2B	20	4	22	26	0	6
1991	TEX	3B	8	2	3	7	0	1
1991	TEX	SS	65	36	68	110	7	25
1992	TEX	2B	3	0	0	2	0	0
1992	TEX	3B	1	1	1	0	0	0
1992	TEX	SS	16	10	15	24	1	2
1993	TEX	1B	1	0	1	0	0	0
1993	TEX	3B	12	11	8	19	0	2
1993	TEX	SS	57	48	81	134	3	27
1994	FLO	2B	7	4	7	11	0	5
1994	FLO	3B	11	7	11	16	1	3
1994	FLO	SS	7	4	2	12	0	4
1995	FLO	2B	9	7	15	19	2	8
1995	FLO	3B	3	0	1	0	0	0
1995	FLO	SS	5	5	6	11	0	4

Career Games by Position

Position Diamond

Circle size = games played at each position.

Mario Diaz Stats, Bio & Career Records
Position	Games
First Base	2
Second Base	58
Third Base	39
Shortstop	228
Designated Hitter	1

Salary History

Mario Diaz — Salary History
Year	Team	League	Salary
1995	FLO	NL	$225,000
1994	FLO	NL	$150,000
1993	TEX	AL	$165,000
1990	NYN	NL	$108,000
1989	SEA	AL	$77,500
1988	SEA	AL	$62,500
Total Career Earnings			$788,000

Mario Diaz: the record in brief

Between the debut on September 12, 1987 and the final game on October 1, 1995, Mario Diaz built the record summarized on this page. The team column moves through the Seattle Mariners (1987 to 1989), the New York Mets (1990), the Texas Rangers (1991 through 1993), and the Florida Marlins (1994 through 1995). Diaz played primarily as a shortstop and batted and threw right-handed. Born on January 10, 1962, in Humacao, P.R., Diaz was listed at 5 feet, 10 inches and 145 pounds. The given name on file is Mario Rafael Diaz.

Across 374 games at the plate, Diaz's career line reads 198 hits in 773 at bats for a .256 average, plus 5 homers and 84 runs batted in. Diaz got on base at a .292 rate and slugged .326 (.618 OPS). The .256 career average is close to the .260 the league hit across the same seasons. In OPS terms, Diaz's .618 stands 14.4% below the league's .722. The highest hit total in a season was 56, in 1993. Among the seasons with the heaviest workload, the best average was .273 in 1993, 3% above that year's league mark of .265.

Frequently Asked Questions about Mario Diaz

What years did Mario Diaz play?: Mario Diaz played in Major League Baseball from 1987 to 1995.
Was Mario Diaz a pitcher?: No. Mario Diaz was a position player (Shortstop).
How many home runs did Mario Diaz hit?: Mario Diaz hit 5 career home runs with 198 hits.
What was Mario Diaz's career batting average?: Mario Diaz batted .256 over his career, with 198 hits in 773 at bats.
How many RBI did Mario Diaz have?: Mario Diaz drove in 84 runs in his career.
Is Mario Diaz in the Hall of Fame?: No. Mario Diaz has not been inducted into the National Baseball Hall of Fame.