Stephen Kolek

San Diego Padres (AAA)

Age: 28

Bats/Throws: R/R

6'3" / 210

DOB: 4/18/1997

(28 years, 6 days)

Stats

Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular Season

Season	Team	Level	Age	W W - Wins	L L - Losses	SV SV - Saves	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	vFA vFA - Fourseam Fastball velocity (Pitch Info)	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
2018	LAD	R	21	0	0	1	3	0	4.1	6.23	2.08	2.08	.313	71.4%	68.8%	100.0%		6.23		6.64	3.94
2018	LAD	A	21	2	0	2	14	0	27.1	8.89	1.98	0.00	.232	90.9%	66.2%	0.0%		0.66		2.16	2.58
2018	LAD	MiLB	21	2	0	3	17	0	31.2	8.53	1.99	0.28	.247	87.0%	66.7%	7.1%		1.42		2.78	2.77
2019	LAD	A	22	7	8	0	27	25	131.1	7.47	3.29	0.48	.332	58.8%	46.9%	4.9%		5.00		3.71	3.92
2021	SEA	A	24	1	0	0	2	0	3.0	0.00	6.00	0.00	.300	60.0%	40.0%	0.0%		6.00		6.23	7.66
2021	SEA	A+	24	3	3	0	21	9	54.2	10.87	3.29	1.15	.329	60.4%	38.7%	14.6%		5.93		4.66	4.37
2021	SEA	AA	24	0	0	0	1	0	2.0	4.50	13.50	0.00	.375	57.1%	12.5%	0.0%		9.00		8.48	11.14
2021	SEA	MiLB	24	4	3	0	24	9	59.2	10.11	3.77	1.06	.329	60.1%	37.5%	13.0%		6.03		4.86	4.76
2022	SEA	AA	25	6	13	0	27	27	143.2	8.65	4.13	0.63	.322	69.0%	47.0%	7.7%		4.51		4.50	5.16
2023	SEA	AA	26	2	0	0	5	0	7.2	12.91	2.35	0.00	.077	100.0%	76.9%	0.0%		0.00		2.00	2.60
2023	SEA	AAA	26	4	2	4	44	1	61.2	9.49	4.38	0.44	.296	62.7%	57.5%	8.8%		4.23		4.08	4.53
2023	SEA	MiLB	26	6	2	4	49	1	69.1	9.87	4.15	0.39	.280	64.4%	59.0%	8.1%		3.76		3.85	4.32
2024	SDP	ST	27	0	0	0	7	0	6.2	9.45	5.40	0.00	.294	100.0%	52.9%	0.0%		0.00		3.89	5.17
2024	SDP	MLB	27	3	0	0	42	0	46.2	7.52	2.31	0.77	.359	64.3%	55.9%	12.9%	95.8	5.21	4.46	3.57	3.46	0.3
2025	SDP	ST	28	0	1	0	5	3	17.1	6.23	3.12	0.00	.315	78.3%	66.7%	0.0%		2.60		3.39	4.41
2025	FGDC	PROJ	28	4	5	0	41	8	80.0	7.19	3.28	0.98	.293	69.6%				4.28		4.31		0.5
2025	Steamer	PROJ	28	4	5	0	41	8	79.0	7.04	3.35	1.06	.298	71.9%	49.6%			4.18		4.42	4.30	0.3
2025	ZiPS	PROJ	28	4	4	0	35	7	70.0	7.33	3.21	0.90	.288	67.3%				4.37		4.21		0.5
2025	ZiPS DC	PROJ	28	5	5	0	41	8	82.0	7.33	3.21	0.90	.288	67.3%				4.37		4.21		0.6
2025	ATC	PROJ	28	4	2	0	30	6	60.0	7.15	3.00	0.98	.312	67.8%				4.59		4.19		0.4
2025	OOPSY	PROJ	28	2	2	0	41	8	79.0	7.93	3.35	0.90	.289	72.6%				3.85		3.96		0.7
2025	SDP	AAA	28	1	0	0	4	4	19.0	7.58	1.89	1.89	.359	65.7%	58.2%	30.8%		7.11		5.78	4.28
2025	FGDC	ROS	28	3	4	0	38	6	64.0	6.92	3.23	1.01	.298	72.0%				4.09		4.19		0.3
2025	Steamer	ROS	28	3	4	0	38	6	64.0	6.92	3.23	1.01	.298	72.0%				4.09		4.19		0.3
2025	ZiPS DC	ROS	28	4	4	0	38	6	65.0	7.33	3.21	0.90	.288	67.3%				4.37		4.07		0.4
2025	ATC DC	ROS	28	4	3	0	38	6	67.0	7.15	3.00	0.98	.312	67.8%				4.59		4.05		0.3
2025	THE BAT	ROS	28	3	3	0	38	6	56.0	7.11	3.32	1.06	.302	67.9%				4.69		4.26		0.3
2025	OOPSY	ROS	28	2	1	0	38	6	63.0	7.60	3.07	0.99	.289	71.4%				4.01		3.93		0.4
Total	- - -	MLB		3	0	0	42	0	46.2	7.52	2.31	0.77	.359	64.3%	55.9%	12.9%	95.8	5.21		3.57	3.46	0.3

Season	Team	Level	Age	W W - Wins	L L - Losses	SV SV - Saves	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	vFA vFA - Fourseam Fastball velocity (Pitch Info)	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
2018	LAD	R	21	0	0	1	3	0	4.1	6.23	2.08	2.08	.313	71.4%	68.8%	100.0%		6.23		6.64	3.94
2018	LAD	A	21	2	0	2	14	0	27.1	8.89	1.98	0.00	.232	90.9%	66.2%	0.0%		0.66		2.16	2.58
2018	LAD	MiLB	21	2	0	3	17	0	31.2	8.53	1.99	0.28	.247	87.0%	66.7%	7.1%		1.42		2.78	2.77
2019	LAD	A	22	7	8	0	27	25	131.1	7.47	3.29	0.48	.332	58.8%	46.9%	4.9%		5.00		3.71	3.92
2021	SEA	A	24	1	0	0	2	0	3.0	0.00	6.00	0.00	.300	60.0%	40.0%	0.0%		6.00		6.23	7.66
2021	SEA	A+	24	3	3	0	21	9	54.2	10.87	3.29	1.15	.329	60.4%	38.7%	14.6%		5.93		4.66	4.37
2021	SEA	AA	24	0	0	0	1	0	2.0	4.50	13.50	0.00	.375	57.1%	12.5%	0.0%		9.00		8.48	11.14
2021	SEA	MiLB	24	4	3	0	24	9	59.2	10.11	3.77	1.06	.329	60.1%	37.5%	13.0%		6.03		4.86	4.76
2022	SEA	AA	25	6	13	0	27	27	143.2	8.65	4.13	0.63	.322	69.0%	47.0%	7.7%		4.51		4.50	5.16
2023	SEA	AA	26	2	0	0	5	0	7.2	12.91	2.35	0.00	.077	100.0%	76.9%	0.0%		0.00		2.00	2.60
2023	SEA	AAA	26	4	2	4	44	1	61.2	9.49	4.38	0.44	.296	62.7%	57.5%	8.8%		4.23		4.08	4.53
2023	SEA	MiLB	26	6	2	4	49	1	69.1	9.87	4.15	0.39	.280	64.4%	59.0%	8.1%		3.76		3.85	4.32
2024	SDP	ST	27	0	0	0	7	0	6.2	9.45	5.40	0.00	.294	100.0%	52.9%	0.0%		0.00		3.89	5.17
2024	SDP	MLB	27	3	0	0	42	0	46.2	7.52	2.31	0.77	.359	64.3%	55.9%	12.9%	95.8	5.21	4.46	3.57	3.46	0.3
2025	SDP	ST	28	0	1	0	5	3	17.1	6.23	3.12	0.00	.315	78.3%	66.7%	0.0%		2.60		3.39	4.41
2025	FGDC	PROJ	28	4	5	0	41	8	80.0	7.19	3.28	0.98	.293	69.6%				4.28		4.31		0.5
2025	Steamer	PROJ	28	4	5	0	41	8	79.0	7.04	3.35	1.06	.298	71.9%	49.6%			4.18		4.42	4.30	0.3
2025	ZiPS	PROJ	28	4	4	0	35	7	70.0	7.33	3.21	0.90	.288	67.3%				4.37		4.21		0.5
2025	ZiPS DC	PROJ	28	5	5	0	41	8	82.0	7.33	3.21	0.90	.288	67.3%				4.37		4.21		0.6
2025	ATC	PROJ	28	4	2	0	30	6	60.0	7.15	3.00	0.98	.312	67.8%				4.59		4.19		0.4
2025	OOPSY	PROJ	28	2	2	0	41	8	79.0	7.93	3.35	0.90	.289	72.6%				3.85		3.96		0.7
2025	SDP	AAA	28	1	0	0	4	4	19.0	7.58	1.89	1.89	.359	65.7%	58.2%	30.8%		7.11		5.78	4.28
2025	FGDC	ROS	28	3	4	0	38	6	64.0	6.92	3.23	1.01	.298	72.0%				4.09		4.19		0.3
2025	Steamer	ROS	28	3	4	0	38	6	64.0	6.92	3.23	1.01	.298	72.0%				4.09		4.19		0.3
2025	ZiPS DC	ROS	28	4	4	0	38	6	65.0	7.33	3.21	0.90	.288	67.3%				4.37		4.07		0.4
2025	ATC DC	ROS	28	4	3	0	38	6	67.0	7.15	3.00	0.98	.312	67.8%				4.59		4.05		0.3
2025	THE BAT	ROS	28	3	3	0	38	6	56.0	7.11	3.32	1.06	.302	67.9%				4.69		4.26		0.3
2025	OOPSY	ROS	28	2	1	0	38	6	63.0	7.60	3.07	0.99	.289	71.4%				4.01		3.93		0.4
Total	- - -	MLB		3	0	0	42	0	46.2	7.52	2.31	0.77	.359	64.3%	55.9%	12.9%	95.8	5.21		3.57	3.46	0.3

Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular Season

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	CG CG - Complete Games	ShO ShO - Shoutouts	SV SV - Saves	HLD HLD - Holds	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
2018	LAD	R	0	0	6.23	3	0		0	0	1	0	0	4.1	21	6	3	3	1	1	0	0	1	0	3
2018	LAD	A	2	0	0.66	14	0		0	0	2	2	0	27.1	102	16	2	2	0	6	1	0	2	0	27
2018	LAD	MiLB	2	0	1.42	17	0		0	0	3	2	0	31.2	123	22	5	5	1	7	1	0	3	0	30
2019	LAD	A	7	8	5.00	27	25		0	0	0	0	0	131.1	580	143	87	73	7	48	1	6	12	0	109
2021	SEA	A	1	0	6.00	2	0		0	0	0	0	0	3.0	12	3	2	2	0	2	0	0	0	0	0
2021	SEA	A+	3	3	5.93	21	9		0	0	0	1	0	54.2	245	55	38	36	7	20	0	6	6	0	66
2021	SEA	AA	0	0	9.00	1	0		0	0	0	0	0	2.0	13	3	3	2	0	3	0	1	0	0	1
2021	SEA	MiLB	4	3	6.03	24	9		0	0	0	1	0	59.2	270	61	43	40	7	25	0	7	6	0	67
2022	SEA	AA	6	13	4.51	27	27		0	0	0	0	0	143.2	636	140	79	72	10	66	0	18	6	0	138
2023	SEA	AA	2	0	0.00	5	0		0	0	0	1	0	7.2	27	1	0	0	0	2	0	1	0	0	11
2023	SEA	AAA	4	2	4.23	44	1		0	0	4	10	3	61.2	263	51	34	29	3	30	1	3	3	0	65
2023	SEA	MiLB	6	2	3.76	49	1		0	0	4	11	3	69.1	290	52	34	29	3	32	1	4	3	0	76
2024	SDP	ST	0	0	0.00	7	0		0	0	0	3	0	6.2	29	5	0	0	0	4	0	1	0	0	7
2024	SDP	MLB	3	0	5.21	42	0	0	0	0	0	2	1	46.2	211	59	30	27	4	12	0	3	2	0	39
2025	SDP	ST	0	1	2.60	5	3		0	0	0	1	0	17.1	72	17	5	5	0	6	0	0	1	0	12
2025	FGDC	PROJ	4	5	4.28	41	8	3			0	1		80.0	350	80	42	38	9	29		6			64
2025	Steamer	PROJ	4	5	4.18	41	8	4	0	0	0	1		79.0	342	80	40	37	9	29	1	4			62
2025	ZiPS	PROJ	4	4	4.37	35	7				0	1		70.0	308	68	37	34	7	25	0	7	3	0	57
2025	ZiPS DC	PROJ	5	5	4.37	41	8	3			0	1		82.0	359	79	43	40	8	29		8			66
2025	ATC	PROJ	4	2	4.59	30	6	2			0	1		60.0	263	64	33	31	7	20	0	4			48
2025	OOPSY	PROJ	2	2	3.85	41	8	5			0	1		79.0	346	76	37	34	8	29		4			70
2025	SDP	AAA	1	0	7.11	4	4		0	0	0	0	0	19.0	90	27	15	15	4	4	0	2	0	0	16
2025	FGDC	ROS	3	4	4.09	38	6	2			0	1		64.0	275	65	32	29	7	23		4			49
2025	Steamer	ROS	3	4	4.09	38	6	2	0	0	0	1		64.0	275	65	32	29	7	23		4			49
2025	ZiPS DC	ROS	4	4	4.37	38	6	2			0	1		65.0	288	64	35	32	7	23		7			53
2025	ATC DC	ROS	4	3	4.59	38	6	2			0	1		67.0	293	72	37	34	7	22		4			53
2025	THE BAT	ROS	3	3	4.69	38	6				0	1		56.0	243	57	31	29	7	21	1	3			44
2025	OOPSY	ROS	2	1	4.01	38	6	4			0	1		63.0	271	61	31	28	7	21		3			53
Total	- - -	MLB	3	0	5.21	42	0	0	0	0	0	2	1	46.2	211	59	30	27	4	12	0	3	2	0	39

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	CG CG - Complete Games	ShO ShO - Shoutouts	SV SV - Saves	HLD HLD - Holds	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
2018	LAD	R	0	0	6.23	3	0		0	0	1	0	0	4.1	21	6	3	3	1	1	0	0	1	0	3
2018	LAD	A	2	0	0.66	14	0		0	0	2	2	0	27.1	102	16	2	2	0	6	1	0	2	0	27
2018	LAD	MiLB	2	0	1.42	17	0		0	0	3	2	0	31.2	123	22	5	5	1	7	1	0	3	0	30
2019	LAD	A	7	8	5.00	27	25		0	0	0	0	0	131.1	580	143	87	73	7	48	1	6	12	0	109
2021	SEA	A	1	0	6.00	2	0		0	0	0	0	0	3.0	12	3	2	2	0	2	0	0	0	0	0
2021	SEA	A+	3	3	5.93	21	9		0	0	0	1	0	54.2	245	55	38	36	7	20	0	6	6	0	66
2021	SEA	AA	0	0	9.00	1	0		0	0	0	0	0	2.0	13	3	3	2	0	3	0	1	0	0	1
2021	SEA	MiLB	4	3	6.03	24	9		0	0	0	1	0	59.2	270	61	43	40	7	25	0	7	6	0	67
2022	SEA	AA	6	13	4.51	27	27		0	0	0	0	0	143.2	636	140	79	72	10	66	0	18	6	0	138
2023	SEA	AA	2	0	0.00	5	0		0	0	0	1	0	7.2	27	1	0	0	0	2	0	1	0	0	11
2023	SEA	AAA	4	2	4.23	44	1		0	0	4	10	3	61.2	263	51	34	29	3	30	1	3	3	0	65
2023	SEA	MiLB	6	2	3.76	49	1		0	0	4	11	3	69.1	290	52	34	29	3	32	1	4	3	0	76
2024	SDP	ST	0	0	0.00	7	0		0	0	0	3	0	6.2	29	5	0	0	0	4	0	1	0	0	7
2024	SDP	MLB	3	0	5.21	42	0	0	0	0	0	2	1	46.2	211	59	30	27	4	12	0	3	2	0	39
2025	SDP	ST	0	1	2.60	5	3		0	0	0	1	0	17.1	72	17	5	5	0	6	0	0	1	0	12
2025	FGDC	PROJ	4	5	4.28	41	8	3			0	1		80.0	350	80	42	38	9	29		6			64
2025	Steamer	PROJ	4	5	4.18	41	8	4	0	0	0	1		79.0	342	80	40	37	9	29	1	4			62
2025	ZiPS	PROJ	4	4	4.37	35	7				0	1		70.0	308	68	37	34	7	25	0	7	3	0	57
2025	ZiPS DC	PROJ	5	5	4.37	41	8	3			0	1		82.0	359	79	43	40	8	29		8			66
2025	ATC	PROJ	4	2	4.59	30	6	2			0	1		60.0	263	64	33	31	7	20	0	4			48
2025	OOPSY	PROJ	2	2	3.85	41	8	5			0	1		79.0	346	76	37	34	8	29		4			70
2025	SDP	AAA	1	0	7.11	4	4		0	0	0	0	0	19.0	90	27	15	15	4	4	0	2	0	0	16
2025	FGDC	ROS	3	4	4.09	38	6	2			0	1		64.0	275	65	32	29	7	23		4			49
2025	Steamer	ROS	3	4	4.09	38	6	2	0	0	0	1		64.0	275	65	32	29	7	23		4			49
2025	ZiPS DC	ROS	4	4	4.37	38	6	2			0	1		65.0	288	64	35	32	7	23		7			53
2025	ATC DC	ROS	4	3	4.59	38	6	2			0	1		67.0	293	72	37	34	7	22		4			53
2025	THE BAT	ROS	3	3	4.69	38	6				0	1		56.0	243	57	31	29	7	21	1	3			44
2025	OOPSY	ROS	2	1	4.01	38	6	4			0	1		63.0	271	61	31	28	7	21		3			53
Total	- - -	MLB	3	0	5.21	42	0	0	0	0	0	2	1	46.2	211	59	30	27	4	12	0	3	2	0	39

Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular SeasonAverages

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
2018	LAD	R	6.23	2.08	3.00	2.08	14.3%	4.8%	9.5%	.300	1.62	.313	71.4%	125	130	6.64
2018	LAD	A	8.89	1.98	4.50	0.00	26.5%	5.9%	20.6%	.167	0.80	.232	90.9%	18	58	2.16
2018	LAD	MiLB	8.53	1.99	4.29	0.28	24.4%	5.7%	18.7%	.190	0.92	.247	87.0%	33	68	2.78
2019	LAD	A	7.47	3.29	2.27	0.48	18.8%	8.3%	10.5%	.272	1.45	.332	58.8%	140	101	3.71
2021	SEA	A	0.00	6.00	0.00	0.00	0.0%	16.7%	-16.7%	.300	1.67	.300	60.0%	127	136	6.23
2021	SEA	A+	10.87	3.29	3.30	1.15	26.9%	8.2%	18.8%	.251	1.37	.329	60.4%	120	95	4.66
2021	SEA	AA	4.50	13.50	0.33	0.00	7.7%	23.1%	-15.4%	.333	3.00	.375	57.1%	223	202	8.48
2021	SEA	MiLB	10.11	3.77	2.68	1.06	24.8%	9.3%	15.6%	.256	1.44	.329	60.1%	123	100	4.86
2022	SEA	AA	8.65	4.13	2.09	0.63	21.7%	10.4%	11.3%	.254	1.43	.322	69.0%	100	95	4.50
2023	SEA	AA	12.91	2.35	5.50	0.00	40.7%	7.4%	33.3%	.042	0.39	.077	100.0%	0	45	2.00
2023	SEA	AAA	9.49	4.38	2.17	0.44	24.7%	11.4%	13.3%	.222	1.31	.296	62.7%	77	71	4.08
2023	SEA	MiLB	9.87	4.15	2.38	0.39	26.2%	11.0%	15.2%	.205	1.21	.280	64.4%	69	68	3.85
2024	SDP	ST	9.45	5.40	1.75	0.00	24.1%	13.8%	10.3%	.208	1.35	.294	100.0%	0	86	3.89
2024	SDP	MLB	7.52	2.31	3.25	0.77	18.5%	5.7%	12.8%	.301	1.52	.359	64.3%	132	89	3.57
2024			8.60	3.12	2.76	1.14	22.6%	8.2%	14.4%	.241	1.27	.289	72.1%			4.11
2025	SDP	ST	6.23	3.12	2.00	0.00	16.7%	8.3%	8.3%	.258	1.33	.315	78.3%	50	71	3.39
2025	FGDC	PROJ	7.19	3.28	2.19	0.98	18.3%	8.4%	10.0%	.253	1.35	.293	69.6%			4.31
2025	Steamer	PROJ	7.04	3.35	2.10	1.06	18.1%	8.6%	9.5%	.259	1.38	.298	71.9%			4.42
2025	ZiPS	PROJ	7.33	3.21	2.28	0.90	18.5%	8.1%	10.4%	.246	1.33	.288	67.3%			4.21
2025	ZiPS DC	PROJ	7.33	3.21	2.28	0.90	18.5%	8.1%	10.4%	.246	1.33	.288	67.3%			4.21
2025	ATC	PROJ	7.15	3.00	2.38	0.98	18.2%	7.6%	10.5%	.268	1.40	.312	67.8%			4.19
2025	OOPSY	PROJ	7.93	3.35	2.37	0.90	20.1%	8.5%	11.6%	.242	1.33	.289	72.6%			3.96
2025	SDP	AAA	7.58	1.89	4.00	1.89	17.8%	4.4%	13.3%	.321	1.63	.359	65.7%	130	110	5.78
2025	FGDC	ROS	6.92	3.23	2.15	1.01	17.8%	8.3%	9.5%	.260	1.37	.298	72.0%			4.19
2025	Steamer	ROS	6.92	3.23	2.15	1.01	17.8%	8.3%	9.5%	.260	1.37	.298	72.0%			4.19
2025	ZiPS DC	ROS	7.33	3.21	2.28	0.90	18.5%	8.1%	10.4%	.246	1.33	.288	67.3%			4.07
2025	ATC DC	ROS	7.15	3.00	2.38	0.98	18.2%	7.6%	10.5%	.268	1.40	.312	67.8%			4.05
2025	THE BAT	ROS	7.11	3.32	2.14	1.06	18.2%	8.5%	9.7%	.262	1.40	.302	67.9%			4.26
2025	OOPSY	ROS	7.60	3.07	2.47	0.99	19.6%	7.9%	11.6%	.247	1.31	.289	71.4%			3.93
Total	- - -	MLB	7.52	2.31	3.25	0.77	18.5%	5.7%	12.8%	.301	1.52	.359	64.3%	132	89	3.57

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
2018	LAD	R	6.23	2.08	3.00	2.08	14.3%	4.8%	9.5%	.300	1.62	.313	71.4%	125	130	6.64
2018	LAD	A	8.89	1.98	4.50	0.00	26.5%	5.9%	20.6%	.167	0.80	.232	90.9%	18	58	2.16
2018	LAD	MiLB	8.53	1.99	4.29	0.28	24.4%	5.7%	18.7%	.190	0.92	.247	87.0%	33	68	2.78
2019	LAD	A	7.47	3.29	2.27	0.48	18.8%	8.3%	10.5%	.272	1.45	.332	58.8%	140	101	3.71
2021	SEA	A	0.00	6.00	0.00	0.00	0.0%	16.7%	-16.7%	.300	1.67	.300	60.0%	127	136	6.23
2021	SEA	A+	10.87	3.29	3.30	1.15	26.9%	8.2%	18.8%	.251	1.37	.329	60.4%	120	95	4.66
2021	SEA	AA	4.50	13.50	0.33	0.00	7.7%	23.1%	-15.4%	.333	3.00	.375	57.1%	223	202	8.48
2021	SEA	MiLB	10.11	3.77	2.68	1.06	24.8%	9.3%	15.6%	.256	1.44	.329	60.1%	123	100	4.86
2022	SEA	AA	8.65	4.13	2.09	0.63	21.7%	10.4%	11.3%	.254	1.43	.322	69.0%	100	95	4.50
2023	SEA	AA	12.91	2.35	5.50	0.00	40.7%	7.4%	33.3%	.042	0.39	.077	100.0%	0	45	2.00
2023	SEA	AAA	9.49	4.38	2.17	0.44	24.7%	11.4%	13.3%	.222	1.31	.296	62.7%	77	71	4.08
2023	SEA	MiLB	9.87	4.15	2.38	0.39	26.2%	11.0%	15.2%	.205	1.21	.280	64.4%	69	68	3.85
2024	SDP	ST	9.45	5.40	1.75	0.00	24.1%	13.8%	10.3%	.208	1.35	.294	100.0%	0	86	3.89
2024	SDP	MLB	7.52	2.31	3.25	0.77	18.5%	5.7%	12.8%	.301	1.52	.359	64.3%	132	89	3.57
2024			8.60	3.12	2.76	1.14	22.6%	8.2%	14.4%	.241	1.27	.289	72.1%			4.11
2025	SDP	ST	6.23	3.12	2.00	0.00	16.7%	8.3%	8.3%	.258	1.33	.315	78.3%	50	71	3.39
2025	FGDC	PROJ	7.19	3.28	2.19	0.98	18.3%	8.4%	10.0%	.253	1.35	.293	69.6%			4.31
2025	Steamer	PROJ	7.04	3.35	2.10	1.06	18.1%	8.6%	9.5%	.259	1.38	.298	71.9%			4.42
2025	ZiPS	PROJ	7.33	3.21	2.28	0.90	18.5%	8.1%	10.4%	.246	1.33	.288	67.3%			4.21
2025	ZiPS DC	PROJ	7.33	3.21	2.28	0.90	18.5%	8.1%	10.4%	.246	1.33	.288	67.3%			4.21
2025	ATC	PROJ	7.15	3.00	2.38	0.98	18.2%	7.6%	10.5%	.268	1.40	.312	67.8%			4.19
2025	OOPSY	PROJ	7.93	3.35	2.37	0.90	20.1%	8.5%	11.6%	.242	1.33	.289	72.6%			3.96
2025	SDP	AAA	7.58	1.89	4.00	1.89	17.8%	4.4%	13.3%	.321	1.63	.359	65.7%	130	110	5.78
2025	FGDC	ROS	6.92	3.23	2.15	1.01	17.8%	8.3%	9.5%	.260	1.37	.298	72.0%			4.19
2025	Steamer	ROS	6.92	3.23	2.15	1.01	17.8%	8.3%	9.5%	.260	1.37	.298	72.0%			4.19
2025	ZiPS DC	ROS	7.33	3.21	2.28	0.90	18.5%	8.1%	10.4%	.246	1.33	.288	67.3%			4.07
2025	ATC DC	ROS	7.15	3.00	2.38	0.98	18.2%	7.6%	10.5%	.268	1.40	.312	67.8%			4.05
2025	THE BAT	ROS	7.11	3.32	2.14	1.06	18.2%	8.5%	9.7%	.262	1.40	.302	67.9%			4.26
2025	OOPSY	ROS	7.60	3.07	2.47	0.99	19.6%	7.9%	11.6%	.247	1.31	.289	71.4%			3.93
Total	- - -	MLB	7.52	2.31	3.25	0.77	18.5%	5.7%	12.8%	.301	1.52	.359	64.3%	132	89	3.57

Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular Season

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	ERA ERA - Earned Run Average ((ER*9)/IP)	xERA xERA - Expected ERA
2023	SEA	AAA	165	85.1	112.4	2.0			57	34.5%	4.23
2024	SDP	MLB	157	88.1	113.5	3.6	6	3.8%	64	40.8%	5.21	4.46
2025	SDP	AAA	68	87.9	108.2	5.6			30	44.1%	7.11
Total	- - -	MLB	157	88.1	113.5	3.6	6	3.8%	64	40.8%	5.21

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	ERA ERA - Earned Run Average ((ER*9)/IP)	xERA xERA - Expected ERA
2023	SEA	AAA	165	85.1	112.4	2.0			57	34.5%	4.23
2024	SDP	MLB	157	88.1	113.5	3.6	6	3.8%	64	40.8%	5.21	4.46
2025	SDP	AAA	68	87.9	108.2	5.6			30	44.1%	7.11
Total	- - -	MLB	157	88.1	113.5	3.6	6	3.8%	64	40.8%	5.21

Stephen Kolek

Stats

Dashboard

Standard

Advanced

Statcast

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