Marcelo Mayer

Boston Red Sox

3B

Age: 22

Bats/Throws: L/R

6'3" / 188

DOB: 12/12/2002

(22 years, 5 months, 26 days)

3B

Pitch Type Splits

Season	Pitch	Pitches Pitches - Pitches Thrown	divider	AB	PA	H H - Hits Allowed	1B	2B L - Losses	3B ERA - Earned Run Average ((ER*9)/IP)	HR HR - Home Runs	BB BB - Walks	IBB IBB - Intentional	SO SO - Strikeouts	HBP HBP - Hit Batters	SF	SH	GDP	AVG AVG - Batting Average Against	divider	minVel	maxVel	Vel
2025	Fourseam (FA)	58		12	13	2	2	0	0	0	1	0	2	0	0	0	0	.167		92.1	101.1	95.4
2025	Slider (SL)	28		8	8	2	1	1	0	0	0	0	4	0	0	0	0	.250		78.0	90.2	85.1
2025	Splitter (FS)	16		3	3	0	0	0	0	0	0	0	2	0	0	0	0	.000		79.9	92.8	84.7
2025	Sinker (SI)	15		3	4	0	0	0	0	0	1	0	0	0	0	0	0	.000		91.7	98.2	94.3
2025	Curveball (CU)	11		3	3	1	0	1	0	0	0	0	2	0	0	0	0	.333		76.6	86.0	81.2
2025	Cutter (FC)	7		3	3	1	1	0	0	0	0	0	0	0	0	0	0	.333		86.9	92.4	89.2
2025	Knuckle Curve (KC)	5		0	1	0	0	0	0	0	1	0	0	0	0	0	0	.000		85.4	88.4	86.8
2025	Changeup (CH)	5		0	0	0	0	0	0	0	0	0	0	0	0	0	0	.000		87.1	89.1	88.3
Total	Fourseam (FA)	58		12	13	2	2	0	0	0	1	0	2	0	0	0	0	.167		92.1	101.1	95.4
Total	Slider (SL)	28		8	8	2	1	1	0	0	0	0	4	0	0	0	0	.250		78.0	90.2	85.1
Total	Splitter (FS)	16		3	3	0	0	0	0	0	0	0	2	0	0	0	0	.000		79.9	92.8	84.7
Total	Sinker (SI)	15		3	4	0	0	0	0	0	1	0	0	0	0	0	0	.000		91.7	98.2	94.3
Total	Curveball (CU)	11		3	3	1	0	1	0	0	0	0	2	0	0	0	0	.333		76.6	86.0	81.2
Total	Cutter (FC)	7		3	3	1	1	0	0	0	0	0	0	0	0	0	0	.333		86.9	92.4	89.2
Total	Knuckle Curve (KC)	5		0	1	0	0	0	0	0	1	0	0	0	0	0	0	.000		85.4	88.4	86.8
Total	Changeup (CH)	5		0	0	0	0	0	0	0	0	0	0	0	0	0	0	.000		87.1	89.1	88.3

Season	Pitch	Pitches Pitches - Pitches Thrown	divider	AB	PA	H H - Hits Allowed	1B	2B L - Losses	3B ERA - Earned Run Average ((ER*9)/IP)	HR HR - Home Runs	BB BB - Walks	IBB IBB - Intentional	SO SO - Strikeouts	HBP HBP - Hit Batters	SF	SH	GDP	AVG AVG - Batting Average Against	divider	minVel	maxVel	Vel
2025	Fourseam (FA)	58		12	13	2	2	0	0	0	1	0	2	0	0	0	0	.167		92.1	101.1	95.4
2025	Slider (SL)	28		8	8	2	1	1	0	0	0	0	4	0	0	0	0	.250		78.0	90.2	85.1
2025	Splitter (FS)	16		3	3	0	0	0	0	0	0	0	2	0	0	0	0	.000		79.9	92.8	84.7
2025	Sinker (SI)	15		3	4	0	0	0	0	0	1	0	0	0	0	0	0	.000		91.7	98.2	94.3
2025	Curveball (CU)	11		3	3	1	0	1	0	0	0	0	2	0	0	0	0	.333		76.6	86.0	81.2
2025	Cutter (FC)	7		3	3	1	1	0	0	0	0	0	0	0	0	0	0	.333		86.9	92.4	89.2
2025	Knuckle Curve (KC)	5		0	1	0	0	0	0	0	1	0	0	0	0	0	0	.000		85.4	88.4	86.8
2025	Changeup (CH)	5		0	0	0	0	0	0	0	0	0	0	0	0	0	0	.000		87.1	89.1	88.3
Total	Fourseam (FA)	58		12	13	2	2	0	0	0	1	0	2	0	0	0	0	.167		92.1	101.1	95.4
Total	Slider (SL)	28		8	8	2	1	1	0	0	0	0	4	0	0	0	0	.250		78.0	90.2	85.1
Total	Splitter (FS)	16		3	3	0	0	0	0	0	0	0	2	0	0	0	0	.000		79.9	92.8	84.7
Total	Sinker (SI)	15		3	4	0	0	0	0	0	1	0	0	0	0	0	0	.000		91.7	98.2	94.3
Total	Curveball (CU)	11		3	3	1	0	1	0	0	0	0	2	0	0	0	0	.333		76.6	86.0	81.2
Total	Cutter (FC)	7		3	3	1	1	0	0	0	0	0	0	0	0	0	0	.333		86.9	92.4	89.2
Total	Knuckle Curve (KC)	5		0	1	0	0	0	0	0	1	0	0	0	0	0	0	.000		85.4	88.4	86.8
Total	Changeup (CH)	5		0	0	0	0	0	0	0	0	0	0	0	0	0	0	.000		87.1	89.1	88.3

Season	Pitch	Pitches Pitches - Pitches Thrown	divider	BB% BB% - Walk Percentage (BB/TBF)	K% K% - Strikeout Percentage (SO/TBF)	BB/K	AVG AVG - Batting Average Against	OBP	SLG	OPS	ISO	BABIP BABIP - Batting Average on Balls in Play	wRC	wRAA	wOBA	wRC+
2025	Fourseam (FA)	58		7.7%	15.4%	0.50	.167	.231	.167	.397	.000	.200	0.2	-1.3	.190	28
2025	Slider (SL)	28		0.0%	50.0%	0.00	.250	.250	.375	.625	.125	.500	0.6	-0.3	.270	83
2025	Splitter (FS)	16		0.0%	66.7%	0.00	.000	.000	.000	.000	.000	.000	-0.4	-0.7	.000	-100
2025	Sinker (SI)	15		25.0%	0.0%	1.00	.000	.250	.000	.250	.000	.000	0.0	-0.4	.174	16
2025	Curveball (CU)	11		0.0%	66.7%	0.00	.333	.333	.667	1.000	.333	1.000	0.6	0.3	.423	188
2025	Cutter (FC)	7		0.0%	0.0%	0.00	.333	.333	.333	.667	.000	.333	0.3	0.0	.297	100
2025	Knuckle Curve (KC)	5		100.0%	0.0%	1.00	.000	1.000	.000	1.000	.000	.000	0.4	0.3	.694	363
2025	Changeup (CH)	5		0.0%	0.0%	0.00	.000	.000	.000	.000	.000	.000	0.0	0.0	.000
Total	Fourseam (FA)	58		7.7%	15.4%	0.50	.167	.231	.167	.397	.000	.200	0.2	-1.3	.190	28
Total	Slider (SL)	28		0.0%	50.0%	0.00	.250	.250	.375	.625	.125	.500	0.6	-0.3	.270	83
Total	Splitter (FS)	16		0.0%	66.7%	0.00	.000	.000	.000	.000	.000	.000	-0.4	-0.7	.000	-100
Total	Sinker (SI)	15		25.0%	0.0%	1.00	.000	.250	.000	.250	.000	.000	0.0	-0.4	.174	16
Total	Curveball (CU)	11		0.0%	66.7%	0.00	.333	.333	.667	1.000	.333	1.000	0.6	0.3	.423	188
Total	Cutter (FC)	7		0.0%	0.0%	0.00	.333	.333	.333	.667	.000	.333	0.3	0.0	.297	100
Total	Knuckle Curve (KC)	5		100.0%	0.0%	1.00	.000	1.000	.000	1.000	.000	.000	0.4	0.3	.694	363
Total	Changeup (CH)	5		0.0%	0.0%	0.00	.000	.000	.000	.000	.000	.000	0.0	0.0	.000

Season	Pitch	Pitches Pitches - Pitches Thrown	divider	BB% BB% - Walk Percentage (BB/TBF)	K% K% - Strikeout Percentage (SO/TBF)	BB/K	AVG AVG - Batting Average Against	OBP	SLG	OPS	ISO	BABIP BABIP - Batting Average on Balls in Play	wRC	wRAA	wOBA	wRC+
2025	Fourseam (FA)	58		7.7%	15.4%	0.50	.167	.231	.167	.397	.000	.200	0.2	-1.3	.190	28
2025	Slider (SL)	28		0.0%	50.0%	0.00	.250	.250	.375	.625	.125	.500	0.6	-0.3	.270	83
2025	Splitter (FS)	16		0.0%	66.7%	0.00	.000	.000	.000	.000	.000	.000	-0.4	-0.7	.000	-100
2025	Sinker (SI)	15		25.0%	0.0%	1.00	.000	.250	.000	.250	.000	.000	0.0	-0.4	.174	16
2025	Curveball (CU)	11		0.0%	66.7%	0.00	.333	.333	.667	1.000	.333	1.000	0.6	0.3	.423	188
2025	Cutter (FC)	7		0.0%	0.0%	0.00	.333	.333	.333	.667	.000	.333	0.3	0.0	.297	100
2025	Knuckle Curve (KC)	5		100.0%	0.0%	1.00	.000	1.000	.000	1.000	.000	.000	0.4	0.3	.694	363
2025	Changeup (CH)	5		0.0%	0.0%	0.00	.000	.000	.000	.000	.000	.000	0.0	0.0	.000
Total	Fourseam (FA)	58		7.7%	15.4%	0.50	.167	.231	.167	.397	.000	.200	0.2	-1.3	.190	28
Total	Slider (SL)	28		0.0%	50.0%	0.00	.250	.250	.375	.625	.125	.500	0.6	-0.3	.270	83
Total	Splitter (FS)	16		0.0%	66.7%	0.00	.000	.000	.000	.000	.000	.000	-0.4	-0.7	.000	-100
Total	Sinker (SI)	15		25.0%	0.0%	1.00	.000	.250	.000	.250	.000	.000	0.0	-0.4	.174	16
Total	Curveball (CU)	11		0.0%	66.7%	0.00	.333	.333	.667	1.000	.333	1.000	0.6	0.3	.423	188
Total	Cutter (FC)	7		0.0%	0.0%	0.00	.333	.333	.333	.667	.000	.333	0.3	0.0	.297	100
Total	Knuckle Curve (KC)	5		100.0%	0.0%	1.00	.000	1.000	.000	1.000	.000	.000	0.4	0.3	.694	363
Total	Changeup (CH)	5		0.0%	0.0%	0.00	.000	.000	.000	.000	.000	.000	0.0	0.0	.000

Season	Pitch	Pitches Pitches - Pitches Thrown	divider	LD% LD% - Line Drive Percentage (LD/BIP)	GB% GB% - Ground Ball Percentage (GB/BIP)	FB% FB% - Fly Ball Percentage (FB/BIP)	IFFB% IFFB% - Infield Fly Ball Percentage (IFFB/FB)	HR/FB HR/FB - Home Run to Fly Ball Ratio	Strikes Strikes - Strikes Thrown	Balls Balls - Balls Thrown	Pitches Pitches - Pitches Thrown	divider	xMov	zMov	Mov
2025	Fourseam (FA)	58		20.0%	70.0%	10.0%	0.0%	0.0%	42	16	58		-3.0	9.2	10.5
2025	Slider (SL)	28		25.0%	25.0%	50.0%	0.0%	0.0%	19	9	28		0.5	0.3	3.3
2025	Splitter (FS)	16		0.0%	100.0%	0.0%	0.0%	0.0%	8	8	16		-6.8	2.3	7.8
2025	Sinker (SI)	15		0.0%	100.0%	0.0%	0.0%	0.0%	9	6	15		-5.3	3.6	9.9
2025	Curveball (CU)	11		100.0%	0.0%	0.0%	0.0%	0.0%	8	3	11		0.3	-5.2	6.9
2025	Cutter (FC)	7		33.3%	33.3%	33.3%	0.0%	0.0%	5	2	7		0.5	6.6	6.9
2025	Knuckle Curve (KC)	5		0.0%	0.0%	0.0%	0.0%	0.0%	1	4	5		3.8	-4.2	5.8
2025	Changeup (CH)	5		0.0%	0.0%	0.0%	0.0%	0.0%	4	1	5		-9.1	3.3	9.8
Total	Fourseam (FA)	58		20.0%	70.0%	10.0%	0.0%	0.0%	42	16	58		-3.0	9.2	10.5
Total	Slider (SL)	28		25.0%	25.0%	50.0%	0.0%	0.0%	19	9	28		0.5	0.3	3.3
Total	Splitter (FS)	16		0.0%	100.0%	0.0%	0.0%	0.0%	8	8	16		-6.8	2.3	7.8
Total	Sinker (SI)	15		0.0%	100.0%	0.0%	0.0%	0.0%	9	6	15		-5.3	3.6	9.9
Total	Curveball (CU)	11		100.0%	0.0%	0.0%	0.0%	0.0%	8	3	11		0.3	-5.2	6.9
Total	Cutter (FC)	7		33.3%	33.3%	33.3%	0.0%	0.0%	5	2	7		0.5	6.6	6.9
Total	Knuckle Curve (KC)	5		0.0%	0.0%	0.0%	0.0%	0.0%	1	4	5		3.8	-4.2	5.8
Total	Changeup (CH)	5		0.0%	0.0%	0.0%	0.0%	0.0%	4	1	5		-9.1	3.3	9.8

Season	Pitch	Pitches Pitches - Pitches Thrown	divider	LD% LD% - Line Drive Percentage (LD/BIP)	GB% GB% - Ground Ball Percentage (GB/BIP)	FB% FB% - Fly Ball Percentage (FB/BIP)	IFFB% IFFB% - Infield Fly Ball Percentage (IFFB/FB)	HR/FB HR/FB - Home Run to Fly Ball Ratio	Strikes Strikes - Strikes Thrown	Balls Balls - Balls Thrown	Pitches Pitches - Pitches Thrown	divider	xMov	zMov	Mov
2025	Fourseam (FA)	58		20.0%	70.0%	10.0%	0.0%	0.0%	42	16	58		-3.0	9.2	10.5
2025	Slider (SL)	28		25.0%	25.0%	50.0%	0.0%	0.0%	19	9	28		0.5	0.3	3.3
2025	Splitter (FS)	16		0.0%	100.0%	0.0%	0.0%	0.0%	8	8	16		-6.8	2.3	7.8
2025	Sinker (SI)	15		0.0%	100.0%	0.0%	0.0%	0.0%	9	6	15		-5.3	3.6	9.9
2025	Curveball (CU)	11		100.0%	0.0%	0.0%	0.0%	0.0%	8	3	11		0.3	-5.2	6.9
2025	Cutter (FC)	7		33.3%	33.3%	33.3%	0.0%	0.0%	5	2	7		0.5	6.6	6.9
2025	Knuckle Curve (KC)	5		0.0%	0.0%	0.0%	0.0%	0.0%	1	4	5		3.8	-4.2	5.8
2025	Changeup (CH)	5		0.0%	0.0%	0.0%	0.0%	0.0%	4	1	5		-9.1	3.3	9.8
Total	Fourseam (FA)	58		20.0%	70.0%	10.0%	0.0%	0.0%	42	16	58		-3.0	9.2	10.5
Total	Slider (SL)	28		25.0%	25.0%	50.0%	0.0%	0.0%	19	9	28		0.5	0.3	3.3
Total	Splitter (FS)	16		0.0%	100.0%	0.0%	0.0%	0.0%	8	8	16		-6.8	2.3	7.8
Total	Sinker (SI)	15		0.0%	100.0%	0.0%	0.0%	0.0%	9	6	15		-5.3	3.6	9.9
Total	Curveball (CU)	11		100.0%	0.0%	0.0%	0.0%	0.0%	8	3	11		0.3	-5.2	6.9
Total	Cutter (FC)	7		33.3%	33.3%	33.3%	0.0%	0.0%	5	2	7		0.5	6.6	6.9
Total	Knuckle Curve (KC)	5		0.0%	0.0%	0.0%	0.0%	0.0%	1	4	5		3.8	-4.2	5.8
Total	Changeup (CH)	5		0.0%	0.0%	0.0%	0.0%	0.0%	4	1	5		-9.1	3.3	9.8

Season	Pitch	Pitches Pitches - Pitches Thrown	divider	O-Swing% O-Swing% - Percentage of pitches a batter swings at outside the strike zone	Z-Swing% Z-Swing% - Percentage of pitches a batter swings at inside the strike zone.	Swing% Swing% - Total percentage of pitches a batter swings at	O-Contact% O-Contact% - Percentage of times a batter makes contact with the ball when swinging at pitches thrown outside the strike zone	Z-Contact% Z-Contact% - Percentage of times a batter makes contact with the ball when swinging at pitches thrown inside the strike zone	Contact% Contact% - Total percentage of contact made when swinging at all pitches	Zone% Zone% - Percentage of pitches seen inside the strike zone	SwStr% SwStr% - Percentage of Strikes that were swung at and missed	divider	pVAL	pVAL/C
2025	Fourseam (FA)	58		36.4%	63.9%	53.4%	62.5%	95.7%	87.1%	62.1%	6.9%		1.4	2.4
2025	Slider (SL)	28		43.8%	66.7%	53.6%	0.0%	75.0%	40.0%	42.9%	32.1%		0.0	0.1
2025	Splitter (FS)	16		27.3%	100.0%	50.0%	33.3%	60.0%	50.0%	31.3%	25.0%		0.5	2.9
2025	Sinker (SI)	15		25.0%	45.5%	40.0%	0.0%	100.0%	83.3%	73.3%	6.7%		0.6	4.1
2025	Curveball (CU)	11		42.9%	75.0%	54.5%	0.0%	66.7%	33.3%	36.4%	36.4%		-0.3	-2.5
2025	Cutter (FC)	7		0.0%	80.0%	57.1%		100.0%	100.0%	71.4%	0.0%		0.1	1.8
2025	Knuckle Curve (KC)	5		20.0%		20.0%	0.0%		0.0%	0.0%	20.0%		-0.4	-7.3
2025	Changeup (CH)	5		66.7%	100.0%	80.0%	100.0%	100.0%	100.0%	40.0%	0.0%		0.1	2.9
Total	Fourseam (FA)	58		36.4%	63.9%	53.4%	62.5%	95.7%	87.1%	62.1%	6.9%		1.4	2.4
Total	Slider (SL)	28		43.8%	66.7%	53.6%	0.0%	75.0%	40.0%	42.9%	32.1%		0.0	0.1
Total	Splitter (FS)	16		27.3%	100.0%	50.0%	33.3%	60.0%	50.0%	31.3%	25.0%		0.5	2.9
Total	Sinker (SI)	15		25.0%	45.5%	40.0%	0.0%	100.0%	83.3%	73.3%	6.7%		0.6	4.1
Total	Curveball (CU)	11		42.9%	75.0%	54.5%	0.0%	66.7%	33.3%	36.4%	36.4%		-0.3	-2.5
Total	Cutter (FC)	7		0.0%	80.0%	57.1%		100.0%	100.0%	71.4%	0.0%		0.1	1.8
Total	Knuckle Curve (KC)	5		20.0%		20.0%	0.0%		0.0%	0.0%	20.0%		-0.4	-7.3
Total	Changeup (CH)	5		66.7%	100.0%	80.0%	100.0%	100.0%	100.0%	40.0%	0.0%		0.1	2.9

Season	Pitch	Pitches Pitches - Pitches Thrown	divider	O-Swing% O-Swing% - Percentage of pitches a batter swings at outside the strike zone	Z-Swing% Z-Swing% - Percentage of pitches a batter swings at inside the strike zone.	Swing% Swing% - Total percentage of pitches a batter swings at	O-Contact% O-Contact% - Percentage of times a batter makes contact with the ball when swinging at pitches thrown outside the strike zone	Z-Contact% Z-Contact% - Percentage of times a batter makes contact with the ball when swinging at pitches thrown inside the strike zone	Contact% Contact% - Total percentage of contact made when swinging at all pitches	Zone% Zone% - Percentage of pitches seen inside the strike zone	SwStr% SwStr% - Percentage of Strikes that were swung at and missed	divider	pVAL	pVAL/C
2025	Fourseam (FA)	58		36.4%	63.9%	53.4%	62.5%	95.7%	87.1%	62.1%	6.9%		1.4	2.4
2025	Slider (SL)	28		43.8%	66.7%	53.6%	0.0%	75.0%	40.0%	42.9%	32.1%		0.0	0.1
2025	Splitter (FS)	16		27.3%	100.0%	50.0%	33.3%	60.0%	50.0%	31.3%	25.0%		0.5	2.9
2025	Sinker (SI)	15		25.0%	45.5%	40.0%	0.0%	100.0%	83.3%	73.3%	6.7%		0.6	4.1
2025	Curveball (CU)	11		42.9%	75.0%	54.5%	0.0%	66.7%	33.3%	36.4%	36.4%		-0.3	-2.5
2025	Cutter (FC)	7		0.0%	80.0%	57.1%		100.0%	100.0%	71.4%	0.0%		0.1	1.8
2025	Knuckle Curve (KC)	5		20.0%		20.0%	0.0%		0.0%	0.0%	20.0%		-0.4	-7.3
2025	Changeup (CH)	5		66.7%	100.0%	80.0%	100.0%	100.0%	100.0%	40.0%	0.0%		0.1	2.9
Total	Fourseam (FA)	58		36.4%	63.9%	53.4%	62.5%	95.7%	87.1%	62.1%	6.9%		1.4	2.4
Total	Slider (SL)	28		43.8%	66.7%	53.6%	0.0%	75.0%	40.0%	42.9%	32.1%		0.0	0.1
Total	Splitter (FS)	16		27.3%	100.0%	50.0%	33.3%	60.0%	50.0%	31.3%	25.0%		0.5	2.9
Total	Sinker (SI)	15		25.0%	45.5%	40.0%	0.0%	100.0%	83.3%	73.3%	6.7%		0.6	4.1
Total	Curveball (CU)	11		42.9%	75.0%	54.5%	0.0%	66.7%	33.3%	36.4%	36.4%		-0.3	-2.5
Total	Cutter (FC)	7		0.0%	80.0%	57.1%		100.0%	100.0%	71.4%	0.0%		0.1	1.8
Total	Knuckle Curve (KC)	5		20.0%		20.0%	0.0%		0.0%	0.0%	20.0%		-0.4	-7.3
Total	Changeup (CH)	5		66.7%	100.0%	80.0%	100.0%	100.0%	100.0%	40.0%	0.0%		0.1	2.9