Pitching

Diego Perez

Chicago White Sox (CPX)

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Age: 18

Bats/Throws: R/R

6'0" / 153

DOB: 7/3/2008

(18 years, 2 months)

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In-Season ProjectionsMinor Leagues

Season	Team	Level	Age	W	L	SV	G	GS	IP	divider	K/9	BB/9	HR/9	BABIP	LOB%	GB%	HR/FB	divider	vFA	divider	ERA	xERA	FIP	xFIP	WAR
2025	CHW	DSL	16	1	2	0	16	11	31.2		9.38	6.25	0.57	.325	65.8%	35.7%	6.7%				5.12		5.33	5.15
2026	CHW	CPX	17	0	1	0	6	3	8.0		9.00	19.13	0.00	.462	48.6%	42.3%	0.0%				19.13		11.53	13.20
2026	Steamer	ROS	17	0	0	0	0	0	1.0		4.27	8.44	1.65	.298	66.8%						7.53		7.51		0.0
2026	OOPSY	ROS	17	0	0	0	1	0	1.4		6.52	8.35	2.19	.286	80.9%						6.31		7.89		0.0

Season	Team	Level	Age	W	L	SV	G	GS	IP	divider	K/9	BB/9	HR/9	BABIP	LOB%	GB%	HR/FB	divider	vFA	divider	ERA	xERA	FIP	xFIP	WAR
2025	CHW	DSL	16	1	2	0	16	11	31.2		9.38	6.25	0.57	.325	65.8%	35.7%	6.7%				5.12		5.33	5.15
2026	CHW	CPX	17	0	1	0	6	3	8.0		9.00	19.13	0.00	.462	48.6%	42.3%	0.0%				19.13		11.53	13.20
2026	Steamer	ROS	17	0	0	0	0	0	1.0		4.27	8.44	1.65	.298	66.8%						7.53		7.51		0.0
2026	OOPSY	ROS	17	0	0	0	1	0	1.4		6.52	8.35	2.19	.286	80.9%						6.31		7.89		0.0

In-Season ProjectionsMinor Leagues

Season	Team	Level	W	L	ERA	G	GS	QS	CG	ShO	SV	HLD	BS	IP	TBF	H	R	ER	HR	BB	IBB	HBP	WP	BK	SO
2025	CHW	DSL	1	2	5.12	16	11		0	0	0	0	0	31.2	145	29	21	18	2	22	0	5	12	0	33
2026	CHW	CPX	0	1	19.13	6	3		0	0	0	0	0	8.0	57	12	18	17	0	17	0	6	3	0	8
2026	Steamer	ROS	0	0	7.53	0	0	0	0	0	0	0		1.0	5	1	1	1	0	1		0			0
2026	OOPSY	ROS	0	0	6.31	1	0	0			0	0		1.4	10	2	1	1	0	1	0	0			1

Season	Team	Level	W	L	ERA	G	GS	QS	CG	ShO	SV	HLD	BS	IP	TBF	H	R	ER	HR	BB	IBB	HBP	WP	BK	SO
2025	CHW	DSL	1	2	5.12	16	11		0	0	0	0	0	31.2	145	29	21	18	2	22	0	5	12	0	33
2026	CHW	CPX	0	1	19.13	6	3		0	0	0	0	0	8.0	57	12	18	17	0	17	0	6	3	0	8
2026	Steamer	ROS	0	0	7.53	0	0	0	0	0	0	0		1.0	5	1	1	1	0	1		0			0
2026	OOPSY	ROS	0	0	6.31	1	0	0			0	0		1.4	10	2	1	1	0	1	0	0			1

In-Season ProjectionsMinor LeaguesAverages

Season	Team	Level	K/9	BB/9	K/BB	HR/9	divider	K%	BB%	K-BB%	divider	AVG	WHIP	BABIP	LOB%	divider	ERA-	FIP-	divider	FIP
2025	CHW	DSL	9.38	6.25	1.50	0.57		22.8%	15.2%	7.6%		.246	1.61	.325	65.8%		94	98		5.33
2026	CHW	CPX	9.00	19.13	0.47	0.00		14.0%	29.8%	-15.8%		.353	3.63	.462	48.6%		307	183		11.53
2026	Steamer	ROS	4.27	8.44	0.51	1.65		9.4%	18.5%	-9.1%		.295	2.14	.298	66.8%					7.51
2026	OOPSY	ROS	6.52	8.35	0.78	2.19		10.6%	13.5%	-3.0%		.280	2.57	.286	80.9%					7.89

Season	Team	Level	K/9	BB/9	K/BB	HR/9	divider	K%	BB%	K-BB%	divider	AVG	WHIP	BABIP	LOB%	divider	ERA-	FIP-	divider	FIP
2025	CHW	DSL	9.38	6.25	1.50	0.57		22.8%	15.2%	7.6%		.246	1.61	.325	65.8%		94	98		5.33
2026	CHW	CPX	9.00	19.13	0.47	0.00		14.0%	29.8%	-15.8%		.353	3.63	.462	48.6%		307	183		11.53
2026	Steamer	ROS	4.27	8.44	0.51	1.65		9.4%	18.5%	-9.1%		.295	2.14	.298	66.8%					7.51
2026	OOPSY	ROS	6.52	8.35	0.78	2.19		10.6%	13.5%	-3.0%		.280	2.57	.286	80.9%					7.89