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Garrett Whitlock

Boston Red Sox · RP Throws: R Bats: R Height: 6'5 Weight: 222 Born: Jun 11, 1996 ()

Percentile Ranks
vs LHH
vs RHH K%
93.9
96.6 xWOBA
0.256 · 99%
0.282 · 92%
xSLG
99.0
93.8

Year	Team	G	GS	W-L	IP	ERA	WHIP	K%	CSW%	BB%	xAVG	xSLG	xwOBA	xISO	BAR%	SS%	HH%	GB%	LD%	FB%	Z%	Z Sw%	OZ%	OZ Sw%	Apr	May	Jun	Jul	Aug	Sep
2025		62	0	7-3	72.0	2.25	1.08	31.1%	0.0%	8.2%	.209	.325	.270	.116	8.7%	35.3%	36%	46%	25%	24%	51%	24%	49%	51%	4.9	5.4	4.4	4.6	3.1	6.7
2024		4	4	1-0	18.1	1.96	1.16	22.7%	0.0%	9.3%	.254	.399	.326	.146	6.0%	44.0%	36%	44%	28%	22%	49%	9%	51%	33%	0.0	0.0	0.0	0.0	0.0	0.0
2023		22	10	5-5	71.2	5.15	1.33	23.7%	0.0%	4.3%	.272	.460	.328	.187	10.2%	37.5%	43%	44%	25%	26%	52%	18%	48%	53%	0.0	0.0	0.0	0.0	0.0	0.0
2022		31	9	4-2	78.1	3.45	1.02	26.4%	0.0%	4.8%	.227	.366	.278	.139	8.0%	35.2%	39%	41%	23%	26%	54%	23%	46%	49%	0.0	0.0	0.0	0.0	0.0	0.0
2021	Red Sox	46	0	8-4	73.1	1.96	1.08	27.4%	0.0%	5.1%	.227	.332	.266	.105	4.1%	34.5%	37%	50%	26%	18%	53%	22%	47%	42%	0.0	0.0	0.0	0.0	0.0	0.0

2025

Box Score														Pitch Usage/Velo										DFS
#	Date		Opp	IP	BF	PC	H	HR	ER	BB	SO	SwStr	CSW%	CH		ST		SI		FC		SL		Rating	DK $	DK	FD $	FD
1	2025	Sep, 26	DET	1.0	3	16	0	0	0	0	3	7	50.0												n/a	8.25	n/a	12
2	2025	Sep, 23	@TOR	1.0	3	9	0	0	0	0	2	2	55.6												n/a	6.25	n/a	9
3	2025	Sep, 20	@TB	1.0	3	13	1	0	0	0	1	3	23.1												n/a	7.65	n/a	12
4	2025	Sep, 17	ATH	1.1	4	15	0	0	0	0	2	4	33.3												n/a	7.00	n/a	10
5	2025	Sep, 14	NYY	1.0	4	18	1	0	0	0	3	5	50.0												n/a	7.65	n/a	12
6	2025	Sep, 13	NYY	1.1	7	22	3	0	0	0	1	2	13.6												n/a	3.20	n/a	7
7	2025	Sep, 07	@ARI	1.2	5	18	0	0	0	0	1	4	44.4												n/a	9.75	n/a	14
8	2025	Sep, 02	CLE	1.0	4	16	1	0	0	0	1	2	18.8												n/a	3.65	n/a	6
9	2025	Aug, 31	PIT	1.0	6	23	2	0	0	1	2	4	26.1												n/a	4.45	n/a	9
10	2025	Aug, 28	@BAL	1.0	5	20	1	0	0	1	1	3	30.0												n/a	3.05	n/a	6
11	2025	Aug, 25	@BAL	1.0	4	22	1	0	0	0	3	4	31.8												n/a	7.65	n/a	12
12	2025	Aug, 22	@NYY	1.0	3	14	0	0	0	0	2	4	42.9												n/a	6.25	n/a	9
13	2025	Aug, 17	MIA	1.0	6	21	2	0	1	0	1	1	28.6												n/a	1.05	n/a	3
14	2025	Aug, 15	MIA	0.1	2	4	1	0	0	0	0	0	0.0					75.0%	96.7			25.0%	84.8		n/a	0.15	n/a	1
15	2025	Aug, 11	@HOU	2.0	7	17	1	0	0	0	1	5	41.2	35.3%	85.0			47.1%	96.2			17.6%	85.1		n/a	5.90	n/a	9
16	2025	Aug, 09	@SD	0.0	2	1	1	0	0	1	0	0	0.0									100.0%	84.7		n/a	-1.20	n/a	0
17	2025	Aug, 08	@SD	0.2	2	8	0	0	0	0	1	2	37.5	12.5%	84.4			75.0%	95.6			12.5%	86.9		n/a	3.50	n/a	5
18	2025	Aug, 04	KC	0.1	2	9	1	0	0	1	0	0	11.1	11.1%	85.9			33.3%	97.2			55.6%	85.7		n/a	-0.45	n/a	1
19	2025	Aug, 01	HOU	1.0	4	12	0	0	0	0	1	1	41.7					75.0%	98.1			25.0%	86.5		n/a	4.25	n/a	6
20	2025	Jul, 29	@MIN	1.0	4	12	1	0	0	0	2	5	58.3												n/a	5.65	n/a	9

2024

Box Score														Pitch Usage/Velo										DFS
#	Date		Opp	IP	BF	PC	H	HR	ER	BB	SO	SwStr	CSW%	CH		ST		SI		FC		SL		Rating	DK $	DK	FD $	FD

2023

Box Score														Pitch Usage/Velo										DFS
#	Date		Opp	IP	BF	PC	H	HR	ER	BB	SO	SwStr	CSW%	CH		ST		SI		FC		SL		Rating	DK $	DK	FD $	FD

2022

Box Score														Pitch Usage/Velo										DFS
#	Date		Opp	IP	BF	PC	H	HR	ER	BB	SO	SwStr	CSW%	CH		ST		SI		FC		SL		Rating	DK $	DK	FD $	FD

2021

Box Score														Pitch Usage/Velo										DFS
#	Date		Opp	IP	BF	PC	H	HR	ER	BB	SO	SwStr	CSW%	CH		ST		SI		FC		SL		Rating	DK $	DK	FD $	FD

2025 Splits				vs LHB									vs RHB
Pitch	Type	MPH	SPIN	Whiff%	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR
Slider	Breaking	84.8 MPH	2114	37%	40%	.170	.248	40.6	3.1	.255	.000	0	66%	.197	.252	35.6	6.8	.329	.056	1
Sweeper	Breaking	MPH		30%	5%	.237	.220	37.5	0.0	.266	.000	0	11%	.198	.273	50.0	16.7	.230	.000	0
Changeup	Offspeed	84.3 MPH	2282	32%	55%	.256	.298	7.7	7.7	.365	.111	1	23%	.238	.223	38.9	0.0	.274	.000	0

2024 Splits				vs LHB									vs RHB
Pitch	Type	MPH	SPIN	Whiff%	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR
Cutter	Fastball	86.6 MPH	1885	21%	35%	.277	.385	14.3	7.1	.574	.385	1
Slider	Breaking	84.0 MPH	2012	10%	29%	.123	.206	38.5	7.7	.143	.000	0
Sweeper	Breaking	MPH		13%	1%	.000	.000	0.0	0.0	.000	.000	0	60%	.279	.302	25.0	0.0	.441	.000	0
Changeup	Offspeed	84.4 MPH	2119	20%	35%	.244	.277	6.3	6.3	.318	.000	0	40%	.333	.416	27.3	18.2	.487	.111	0

2023 Splits				vs LHB									vs RHB
Pitch	Type	MPH	SPIN	Whiff%	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR
4-Seamer	Fastball	MPH		0%	7%	.143	.126	14.3	0.0	.143	.167	0	4%	.000	.121	83.3	0.0	.000	.000	0
Sinker	Fastball	94.0 MPH	2066	18%	44%	.239	.305	19.0	4.8	.444	.100	1	51%	.379	.451	10.2	8.0	.650	.300	5
Slider	Breaking	MPH		0%	0%	.000	.000	0.0	0.0	.000	.000	0
Sweeper	Breaking	MPH		47%	17%	.160	.270	45.5	9.1	.242	.222	1	28%	.190	.221	37.2	0.0	.333	.280	1
Changeup	Offspeed	82.7 MPH	2129	32%	32%	.257	.308	23.7	1.7	.455	.310	4	18%	.254	.273	24.3	2.7	.377	.143	1

Splits	vs LHB								vs RHB
Year	PA	xBAVG	xWOBA	xSLG	ISO	K%	BB%	HR	PA	xBAVG	xWOBA	xSLG	ISO	K%	BB%	HR
2025	135	.203	.256	.298	.049	30.4%	6.7%	1	156	.214	.282	.349	.057	32.1%	8.3%	1
2024	48	.228	.290	.354	.116	16.7%	6.3%	1	27	.299	.389	.481	.087	33.3%	14.8%	0
2023	130	.238	.302	.426	.211	25.4%	3.8%	6	174	.299	.348	.486	.216	22.4%	4.6%	7
2022	130	.206	.252	.347	.152	21.5%	3.1%	3	181	.243	.296	.381	.161	29.8%	6.1%	7

	Home								Road
Season	PA	xAVG	xWOBA	K%	BB%	xSLG	ISO	HR	PA	xAVG	xWOBA	K%	BB%	xSLG	ISO	HR
2025	49	.205	.233	48.0%	10.0%	.228	.329	0	51	.207	.259	43.0%	12.0%	.289	.283	0
2024	36	.254	.326	13.9%	8.3%	.425	.188	1	39	.253	.326	30.8%	10.3%	.375	.029	0
2023	150	.252	.290	25.3%	6.7%	.356	.131	2	154	.292	.367	22.1%	1.9%	.557	.291	11
2022	185	.251	.296	23.8%	3.2%	.398	.140	6	126	.191	.252	30.2%	7.1%	.318	.183	4

Split	Games	Wind 0-9 mph+	Wind 10+ mph	Humid 0-25	Humid 25-50	Humid 50-75	Humid 75-100	Temp 0-40	Temp 40-60	Temp 61-79	Temp 80+
Road	6.18	5.46	7.08	19.45	7.01	10.01	3.39	0.00	6.45	5.15	9.84
Home	6.80	7.11	7.29	0.00	8.44	3.95	7.12	0.00	8.84	6.45	4.90