Pitching

Po-Yu Chen

Pittsburgh Pirates (CPX)

Age: 24

Bats/Throws: L/R

6'1" / 201

DOB: 10/2/2001

(24 years, 9 months, 17 days)

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Preseason ProjectionsIn-Season ProjectionsMinor Leagues

Season	Team	Level	Age	W W - Wins	L L - Losses	G G - Games Pitched	GS GS - Games Started	IP IP - Innings Pitched	K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP)	BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP)	HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP)	BABIP BABIP - Batting Average on Balls in Play	LOB% LOB% - Left on Base Percentage	GB% GB% - Ground Ball Percentage (GB/BIP)	HR/FB HR/FB - Home Run to Fly Ball Ratio	ERA ERA - Earned Run Average ((ER*9)/IP)	xERA xERA - Expected ERA	FIP FIP - Fielder Independent Pitching on an ERA scale	xFIP xFIP - Expected Fielder Independent Pitching where Home Runs are calculated as 10.5% of Fly Balls induced	WAR WAR - Wins Above Replacement
2021	PIT	CPX	19	2	0	6	6	26.0	10.04	0.00	0.00	.273	85.7%	60.3%	0.0%	0.69		2.26	3.16
2021	PIT	A	19	1	1	4	4	16.0	8.44	6.75	1.13	.289	66.2%	28.9%	13.3%	5.63	6.76	6.36	6.03
2021	PIT	MiLB	19	3	1	10	10	42.0	9.43	2.57	0.43	.279	74.7%	47.2%	5.6%	2.57	6.76	3.83	4.25
2022	PIT	A	20	4	8	22	22	98.1	9.43	3.29	0.73	.300	64.0%	41.4%	10.0%	4.58	3.80	3.76	3.81
2023	PIT	A+	21	5	8	25	24	119.2	9.33	3.23	1.58	.326	75.2%	40.9%	20.8%	4.44		5.22	4.12
2024	PIT	AA	22	4	10	27	25	134.0	6.45	2.89	0.81	.288	69.6%	43.5%	8.0%	4.03		4.34	4.56
2025	PIT	AA	23	4	11	26	23	99.0	7.91	4.36	1.00	.318	65.9%	37.5%	9.4%	5.73		4.76	4.70
2025	PIT	AAA	23	2	0	3	3	13.2	6.59	3.95	0.00	.317	95.0%	56.1%	0.0%	0.66	4.33	3.57	4.57
2025	PIT	MiLB	23	6	11	29	26	112.2	7.75	4.31	0.88	.318	69.4%	39.8%	8.8%	5.11	4.33	4.62	4.68
2026	Steamer	PROJ	24	0	0	0	0	1.0	5.62	3.83	1.37	.299	68.5%	42.1%		5.33		5.32	5.29	0.0
2026	ZiPS	PROJ	24	6	8	26	23	106.3	6.01	3.56	1.27	.295	69.3%			4.91		5.07		0.2
2026	OOPSY	PROJ	24	0	0	1	1	4.4	4.68	3.83	1.32	.306	63.3%			5.83		5.44		0.0
2026	PIT	CPX	24	0	1	2	2	3.0	15.00	6.00	0.00	.545	37.5%	60.0%	0.0%	15.00		2.85	4.19
2026	PIT	AA	24	0	1	6	5	20.1	6.64	4.87	2.21	.286	62.1%	39.0%	23.8%	7.52		7.52	6.24
2026	PIT	MiLB	24	0	2	8	7	23.1	7.71	5.01	1.93	.328	56.8%	42.0%	20.8%	8.49		6.92	5.98
2026	Steamer	ROS	24	0	0	0	0	1.0	5.55	4.17	1.39	.296	68.6%			5.43		5.47		0.0
2026	OOPSY	ROS	24	0	0	1	1	4.2	4.57	3.95	1.37	.303	62.8%			5.93		5.56		0.0

Season	Team	Level	Age	W W - Wins	L L - Losses	G G - Games Pitched	GS GS - Games Started	IP IP - Innings Pitched	K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP)	BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP)	HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP)	BABIP BABIP - Batting Average on Balls in Play	LOB% LOB% - Left on Base Percentage	GB% GB% - Ground Ball Percentage (GB/BIP)	HR/FB HR/FB - Home Run to Fly Ball Ratio	ERA ERA - Earned Run Average ((ER*9)/IP)	xERA xERA - Expected ERA	FIP FIP - Fielder Independent Pitching on an ERA scale	xFIP xFIP - Expected Fielder Independent Pitching where Home Runs are calculated as 10.5% of Fly Balls induced	WAR WAR - Wins Above Replacement
2021	PIT	CPX	19	2	0	6	6	26.0	10.04	0.00	0.00	.273	85.7%	60.3%	0.0%	0.69		2.26	3.16
2021	PIT	A	19	1	1	4	4	16.0	8.44	6.75	1.13	.289	66.2%	28.9%	13.3%	5.63	6.76	6.36	6.03
2021	PIT	MiLB	19	3	1	10	10	42.0	9.43	2.57	0.43	.279	74.7%	47.2%	5.6%	2.57	6.76	3.83	4.25
2022	PIT	A	20	4	8	22	22	98.1	9.43	3.29	0.73	.300	64.0%	41.4%	10.0%	4.58	3.80	3.76	3.81
2023	PIT	A+	21	5	8	25	24	119.2	9.33	3.23	1.58	.326	75.2%	40.9%	20.8%	4.44		5.22	4.12
2024	PIT	AA	22	4	10	27	25	134.0	6.45	2.89	0.81	.288	69.6%	43.5%	8.0%	4.03		4.34	4.56
2025	PIT	AA	23	4	11	26	23	99.0	7.91	4.36	1.00	.318	65.9%	37.5%	9.4%	5.73		4.76	4.70
2025	PIT	AAA	23	2	0	3	3	13.2	6.59	3.95	0.00	.317	95.0%	56.1%	0.0%	0.66	4.33	3.57	4.57
2025	PIT	MiLB	23	6	11	29	26	112.2	7.75	4.31	0.88	.318	69.4%	39.8%	8.8%	5.11	4.33	4.62	4.68
2026	Steamer	PROJ	24	0	0	0	0	1.0	5.62	3.83	1.37	.299	68.5%	42.1%		5.33		5.32	5.29	0.0
2026	ZiPS	PROJ	24	6	8	26	23	106.3	6.01	3.56	1.27	.295	69.3%			4.91		5.07		0.2
2026	OOPSY	PROJ	24	0	0	1	1	4.4	4.68	3.83	1.32	.306	63.3%			5.83		5.44		0.0
2026	PIT	CPX	24	0	1	2	2	3.0	15.00	6.00	0.00	.545	37.5%	60.0%	0.0%	15.00		2.85	4.19
2026	PIT	AA	24	0	1	6	5	20.1	6.64	4.87	2.21	.286	62.1%	39.0%	23.8%	7.52		7.52	6.24
2026	PIT	MiLB	24	0	2	8	7	23.1	7.71	5.01	1.93	.328	56.8%	42.0%	20.8%	8.49		6.92	5.98
2026	Steamer	ROS	24	0	0	0	0	1.0	5.55	4.17	1.39	.296	68.6%			5.43		5.47		0.0
2026	OOPSY	ROS	24	0	0	1	1	4.2	4.57	3.95	1.37	.303	62.8%			5.93		5.56		0.0

Preseason ProjectionsIn-Season ProjectionsMinor Leagues

Season	Team	Level	W W - Wins	L L - Losses	ERA ERA - Earned Run Average ((ER*9)/IP)	G G - Games Pitched	GS GS - Games Started	QS QS - Quality Starts; pitched at least 6 innings and gave up 3 or fewer earned runs	CG CG - Complete Games	ShO ShO - Shoutouts	BS BS - Blown Saves	IP IP - Innings Pitched	TBF TBF - Total Batters Faced	H H - Hits Allowed	R R - Runs Allowed	ER ER - Earned Runs	HR HR - Home Runs	BB BB - Walks	IBB IBB - Intentional	HBP HBP - Hit Batters	WP WP - Wild Pitches	BK BK - Balks	SO SO - Strikeouts
2021	PIT	CPX	2	0	0.69	6	6		0	0	0	26.0	98	18	3	2	0	0	0	3	1	1	29
2021	PIT	A	1	1	5.63	4	4		0	0	0	16.0	77	15	12	10	2	12	0	3	1	2	15
2021	PIT	MiLB	3	1	2.57	10	10		0	0	0	42.0	175	33	15	12	2	12	0	6	2	3	44
2022	PIT	A	4	8	4.58	22	22		0	0	0	98.1	420	88	54	50	8	36	0	6	6	3	103
2023	PIT	A+	5	8	4.44	25	24		0	0	0	119.2	506	122	65	59	21	43	0	8	6	0	124
2024	PIT	AA	4	10	4.03	27	25		0	0	0	134.0	573	130	68	60	12	43	0	12	3	1	96
2025	PIT	AA	4	11	5.73	26	23		0	0	0	99.0	453	105	66	63	11	48	0	11	3	0	87
2025	PIT	AAA	2	0	0.66	3	3		0	0	0	13.2	58	13	1	1	0	6	0	1	0	0	10
2025	PIT	MiLB	6	11	5.11	29	26		0	0	0	112.2	511	118	67	64	11	54	0	12	3	0	97
2026	Steamer	PROJ	0	0	5.33	0	0	0	0	0		1.0	5	1	1	1	0	0	0	0			1
2026	ZiPS	PROJ	6	8	4.91	26	23					106.3	479	116	63	58	15	42	0	9	4	1	71
2026	OOPSY	PROJ	0	0	5.83	1	1	0				4.4	19	5	3	3	1	2	0	0			2
2026	PIT	CPX	0	1	15.00	2	2		0	0	0	3.0	18	6	5	5	0	2	0	0	1	1	5
2026	PIT	AA	0	1	7.52	6	5		0	0	0	20.1	91	21	18	17	5	11	0	4	2	1	15
2026	PIT	MiLB	0	2	8.49	8	7		0	0	0	23.1	109	27	23	22	5	13	0	4	3	2	20
2026	Steamer	ROS	0	0	5.43	0	0	0	0	0		1.0	5	1	1	1	0	0		0			1
2026	OOPSY	ROS	0	0	5.93	1	1	0				4.2	18	5	3	3	1	2	0	0			2

Season	Team	Level	W W - Wins	L L - Losses	ERA ERA - Earned Run Average ((ER*9)/IP)	G G - Games Pitched	GS GS - Games Started	QS QS - Quality Starts; pitched at least 6 innings and gave up 3 or fewer earned runs	CG CG - Complete Games	ShO ShO - Shoutouts	BS BS - Blown Saves	IP IP - Innings Pitched	TBF TBF - Total Batters Faced	H H - Hits Allowed	R R - Runs Allowed	ER ER - Earned Runs	HR HR - Home Runs	BB BB - Walks	IBB IBB - Intentional	HBP HBP - Hit Batters	WP WP - Wild Pitches	BK BK - Balks	SO SO - Strikeouts
2021	PIT	CPX	2	0	0.69	6	6		0	0	0	26.0	98	18	3	2	0	0	0	3	1	1	29
2021	PIT	A	1	1	5.63	4	4		0	0	0	16.0	77	15	12	10	2	12	0	3	1	2	15
2021	PIT	MiLB	3	1	2.57	10	10		0	0	0	42.0	175	33	15	12	2	12	0	6	2	3	44
2022	PIT	A	4	8	4.58	22	22		0	0	0	98.1	420	88	54	50	8	36	0	6	6	3	103
2023	PIT	A+	5	8	4.44	25	24		0	0	0	119.2	506	122	65	59	21	43	0	8	6	0	124
2024	PIT	AA	4	10	4.03	27	25		0	0	0	134.0	573	130	68	60	12	43	0	12	3	1	96
2025	PIT	AA	4	11	5.73	26	23		0	0	0	99.0	453	105	66	63	11	48	0	11	3	0	87
2025	PIT	AAA	2	0	0.66	3	3		0	0	0	13.2	58	13	1	1	0	6	0	1	0	0	10
2025	PIT	MiLB	6	11	5.11	29	26		0	0	0	112.2	511	118	67	64	11	54	0	12	3	0	97
2026	Steamer	PROJ	0	0	5.33	0	0	0	0	0		1.0	5	1	1	1	0	0	0	0			1
2026	ZiPS	PROJ	6	8	4.91	26	23					106.3	479	116	63	58	15	42	0	9	4	1	71
2026	OOPSY	PROJ	0	0	5.83	1	1	0				4.4	19	5	3	3	1	2	0	0			2
2026	PIT	CPX	0	1	15.00	2	2		0	0	0	3.0	18	6	5	5	0	2	0	0	1	1	5
2026	PIT	AA	0	1	7.52	6	5		0	0	0	20.1	91	21	18	17	5	11	0	4	2	1	15
2026	PIT	MiLB	0	2	8.49	8	7		0	0	0	23.1	109	27	23	22	5	13	0	4	3	2	20
2026	Steamer	ROS	0	0	5.43	0	0	0	0	0		1.0	5	1	1	1	0	0		0			1
2026	OOPSY	ROS	0	0	5.93	1	1	0				4.2	18	5	3	3	1	2	0	0			2

Preseason ProjectionsIn-Season ProjectionsMinor LeaguesAverages

Season	Team	Level	K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP)	BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP)	K/BB K/BB - Strikeout to Walk Ratio (SO/BB)	HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP)	K% K% - Strikeout Percentage (SO/TBF)	BB% BB% - Walk Percentage (BB/TBF)	K-BB% K-BB% - The difference between strikeout percentage and walk percentage	AVG AVG - Batting Average Against	WHIP WHIP - Walks + Hits divided by Innings Pitched	BABIP BABIP - Batting Average on Balls in Play	LOB% LOB% - Left on Base Percentage	ERA- ERA- - ERA adjusted for park and league where 100 is average and lower is better	FIP- FIP- - FIP adjusted for park and league where 100 is average and lower is better	FIP FIP - Fielder Independent Pitching on an ERA scale
2021	PIT	CPX	10.04	0.00	29.00	0.00	29.6%	0.0%	29.6%	.189	0.69	.273	85.7%	15	47	2.26
2021	PIT	A	8.44	6.75	1.25	1.13	19.5%	15.6%	3.9%	.242	1.69	.289	66.2%	123	136	6.36
2021	PIT	MiLB	9.43	2.57	3.67	0.43	25.1%	6.9%	18.3%	.210	1.07	.279	74.7%	56	81	3.83
2022	PIT	A	9.43	3.29	2.86	0.73	24.5%	8.6%	16.0%	.233	1.26	.300	64.0%	115	93	3.76
2023	PIT	A+	9.33	3.23	2.88	1.58	24.5%	8.5%	16.0%	.268	1.38	.326	75.2%	95	108	5.22
2024	PIT	AA	6.45	2.89	2.23	0.81	16.8%	7.5%	9.2%	.251	1.29	.288	69.6%	100	111	4.34
2025	PIT	AA	7.91	4.36	1.81	1.00	19.2%	10.6%	8.6%	.266	1.55	.318	65.9%	146	124	4.76
2025	PIT	AAA	6.59	3.95	1.67	0.00	17.2%	10.3%	6.9%	.255	1.39	.317	95.0%	14	78	3.57
2025	PIT	MiLB	7.75	4.31	1.80	0.88	19.0%	10.6%	8.4%	.265	1.53	.318	69.4%	130	119	4.62
2026	Steamer	PROJ	5.62	3.83	1.47	1.37	13.9%	9.4%	4.4%	.279	1.55	.299	68.5%			5.32
2026	ZiPS	PROJ	6.01	3.56	1.69	1.27	14.8%	8.8%	6.1%	.271	1.49	.295	69.3%			5.07
2026	OOPSY	PROJ	4.68	3.83	1.22	1.32	11.8%	9.7%	2.1%	.292	1.57	.306	63.3%			5.44
2026	PIT	CPX	15.00	6.00	2.50	0.00	27.8%	11.1%	16.7%	.375	2.67	.545	37.5%	274	52	2.85
2026	PIT	AA	6.64	4.87	1.36	2.21	16.5%	12.1%	4.4%	.276	1.57	.286	62.1%	156	161	7.52
2026	PIT	MiLB	7.71	5.01	1.54	1.93	18.3%	11.9%	6.4%	.293	1.71	.328	56.8%	172	147	6.92
2026	Steamer	ROS	5.55	4.17	1.33	1.39	13.6%	10.2%	3.4%	.278	1.58	.296	68.6%			5.47
2026	OOPSY	ROS	4.57	3.95	1.16	1.37	11.5%	10.0%	1.6%	.290	1.58	.303	62.8%			5.56

Season	Team	Level	K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP)	BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP)	K/BB K/BB - Strikeout to Walk Ratio (SO/BB)	HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP)	K% K% - Strikeout Percentage (SO/TBF)	BB% BB% - Walk Percentage (BB/TBF)	K-BB% K-BB% - The difference between strikeout percentage and walk percentage	AVG AVG - Batting Average Against	WHIP WHIP - Walks + Hits divided by Innings Pitched	BABIP BABIP - Batting Average on Balls in Play	LOB% LOB% - Left on Base Percentage	ERA- ERA- - ERA adjusted for park and league where 100 is average and lower is better	FIP- FIP- - FIP adjusted for park and league where 100 is average and lower is better	FIP FIP - Fielder Independent Pitching on an ERA scale
2021	PIT	CPX	10.04	0.00	29.00	0.00	29.6%	0.0%	29.6%	.189	0.69	.273	85.7%	15	47	2.26
2021	PIT	A	8.44	6.75	1.25	1.13	19.5%	15.6%	3.9%	.242	1.69	.289	66.2%	123	136	6.36
2021	PIT	MiLB	9.43	2.57	3.67	0.43	25.1%	6.9%	18.3%	.210	1.07	.279	74.7%	56	81	3.83
2022	PIT	A	9.43	3.29	2.86	0.73	24.5%	8.6%	16.0%	.233	1.26	.300	64.0%	115	93	3.76
2023	PIT	A+	9.33	3.23	2.88	1.58	24.5%	8.5%	16.0%	.268	1.38	.326	75.2%	95	108	5.22
2024	PIT	AA	6.45	2.89	2.23	0.81	16.8%	7.5%	9.2%	.251	1.29	.288	69.6%	100	111	4.34
2025	PIT	AA	7.91	4.36	1.81	1.00	19.2%	10.6%	8.6%	.266	1.55	.318	65.9%	146	124	4.76
2025	PIT	AAA	6.59	3.95	1.67	0.00	17.2%	10.3%	6.9%	.255	1.39	.317	95.0%	14	78	3.57
2025	PIT	MiLB	7.75	4.31	1.80	0.88	19.0%	10.6%	8.4%	.265	1.53	.318	69.4%	130	119	4.62
2026	Steamer	PROJ	5.62	3.83	1.47	1.37	13.9%	9.4%	4.4%	.279	1.55	.299	68.5%			5.32
2026	ZiPS	PROJ	6.01	3.56	1.69	1.27	14.8%	8.8%	6.1%	.271	1.49	.295	69.3%			5.07
2026	OOPSY	PROJ	4.68	3.83	1.22	1.32	11.8%	9.7%	2.1%	.292	1.57	.306	63.3%			5.44
2026	PIT	CPX	15.00	6.00	2.50	0.00	27.8%	11.1%	16.7%	.375	2.67	.545	37.5%	274	52	2.85
2026	PIT	AA	6.64	4.87	1.36	2.21	16.5%	12.1%	4.4%	.276	1.57	.286	62.1%	156	161	7.52
2026	PIT	MiLB	7.71	5.01	1.54	1.93	18.3%	11.9%	6.4%	.293	1.71	.328	56.8%	172	147	6.92
2026	Steamer	ROS	5.55	4.17	1.33	1.39	13.6%	10.2%	3.4%	.278	1.58	.296	68.6%			5.47
2026	OOPSY	ROS	4.57	3.95	1.16	1.37	11.5%	10.0%	1.6%	.290	1.58	.303	62.8%			5.56

Preseason ProjectionsIn-Season ProjectionsMinor Leagues

Season	Team	Level	Events Events - The number of Batted Balls (TBF - SO - BB - HBP)	EV EV - Exit Velocity (mph) - Speed of the baseball as it comes off the bat	maxEV maxEV - Maximum Exit Velocity (mph) - Highest speed of a ball off the bat.	LA LA - Launch Angle (degree) - Vertical direction of the ball as it leaves the bat	Barrels Barrels - A batted ball with comparable hit types (in terms of exit velocity and launch angle) have led to a minimum .500 batting average and 1.500 slugging percentage	Barrel% Barrel% - Percentage of batted balls that are classified as barrels	HardHit HardHit - Number of batted balls with exit velocity of 95 mph or higher	HardHit% HardHit% - Percentage of batted balls with exit velocity of 95 mph or higher	divider	ERA ERA - Earned Run Average ((ER*9)/IP)	xERA xERA - Expected ERA
2025	PIT	AAA	41	88.3	109.1	6.7	0	0.0%	15	36.6%		0.66	4.33

Season	Team	Level	Events Events - The number of Batted Balls (TBF - SO - BB - HBP)	EV EV - Exit Velocity (mph) - Speed of the baseball as it comes off the bat	maxEV maxEV - Maximum Exit Velocity (mph) - Highest speed of a ball off the bat.	LA LA - Launch Angle (degree) - Vertical direction of the ball as it leaves the bat	Barrels Barrels - A batted ball with comparable hit types (in terms of exit velocity and launch angle) have led to a minimum .500 batting average and 1.500 slugging percentage	Barrel% Barrel% - Percentage of batted balls that are classified as barrels	HardHit HardHit - Number of batted balls with exit velocity of 95 mph or higher	HardHit% HardHit% - Percentage of batted balls with exit velocity of 95 mph or higher	divider	ERA ERA - Earned Run Average ((ER*9)/IP)	xERA xERA - Expected ERA
2025	PIT	AAA	41	88.3	109.1	6.7	0	0.0%	15	36.6%		0.66	4.33

Po-Yu Chen

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BAL	CHW	ATH
BOS	CLE	HOU
NYY	DET	LAA
TBR	KCR	SEA
TOR	MIN	TEX

ATL	CHC	ARI
MIA	CIN	COL
NYM	MIL	LAD
PHI	PIT	SDP
WSN	STL	SFG