Spencer Schwellenbach

Atlanta Braves

Age: 25

Bats/Throws: R/R

6'1" / 200

DOB: 5/31/2000

(25 years, 10 months, 8 days)

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Stats

Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular SeasonCollege

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
2021	NEB	NCAA	21	3	1	10	18	0	31.2	9.66	2.27	0.00	.278	93.8%				0.57		2.00
2023	ATL	A	23	4	2	0	13	13	51.1	7.19	2.63	0.53	.277	77.5%	51.0%	6.5%		2.63		3.86	4.02
2023	ATL	A+	23	1	0	0	3	3	13.2	9.22	0.66	0.00	.133	50.0%	36.7%	0.0%		1.98		2.12	3.46
2023	ATL	MiLB	23	5	2	0	16	16	65.0	7.62	2.22	0.42	.253	74.8%	48.6%	5.1%		2.49		3.49	3.91
2024	ATL	A+	24	2	1	0	6	6	32.0	9.56	2.53	0.28	.291	69.4%	58.5%	5.0%		2.53		2.78	3.16
2024	ATL	AA	24	2	0	0	2	2	13.0	11.77	0.69	0.00	.200	100.0%	54.2%	0.0%		0.00		1.16	1.67
2024	ATL	MiLB	24	4	1	0	8	8	45.0	10.20	2.00	0.20	.270	74.5%	57.5%	3.8%		1.80		2.31	2.73
2024	ATL	MLB	24	8	7	0	21	21	123.2	9.24	1.67	1.02	.279	74.5%	41.6%	11.2%	96.2	3.35	3.43	3.29	3.34	2.7
2025	ATL	ST	25	2	0	0	6	5	21.0	12.00	1.29	0.43	.333	71.4%	49.0%	8.3%		3.00		2.26	2.65
2025	ATL	MLB	25	7	4	0	17	17	110.2	8.78	1.46	1.06	.259	71.6%	46.9%	14.1%	97.0	3.09	3.56	3.25	3.01	2.4
2026	FGDC	PROJ	26	5	4	0	13	13	79.0	8.80	1.86	1.09	.294	73.3%				3.52		3.49		1.5
2026	Steamer	PROJ	26	5	4	0	13	13	77.0	8.79	2.07	1.09	.301	73.2%	45.3%			3.65		3.56	3.50	1.4
2026	ZiPS	PROJ	26	8	5	0	20	20	124.7	8.81	1.66	1.08	.287	73.5%				3.39		3.42		2.4
2026	ZiPS DC	PROJ	26	5	3	0	13	13	81.0	8.81	1.66	1.08	.287	73.5%				3.39		3.42		1.6
2026	ATC	PROJ	26	4	3	0	11	10	63.0	8.71	1.84	1.05	.291	71.3%				3.62		3.44		1.2
2026	THE BAT	PROJ	26	5	3	0	11	10	63.0	8.80	1.85	1.02	.290	71.6%				3.61		3.36		1.5
2026	THE BAT X	PROJ	26	5	3	0	11	10	63.0	9.28	1.90	1.02	.294	72.1%				3.58		3.28		1.5
2026	OOPSY	PROJ	26	6	4	0	13	13	79.0	8.76	2.25	1.03	.290	72.5%				3.55		3.56		1.5
2026	FGDC	ROS	26	5	4	0	12	12	71.0	8.94	2.18	1.05	.301	73.4%				3.59		3.51		1.3
2026	Steamer	ROS	26	5	4	0	12	12	71.0	8.94	2.18	1.05	.301	73.4%				3.59		3.51		1.3
2026	ZiPS DC	ROS	26	5	3	0	12	12	75.0	8.81	1.66	1.08	.287	73.5%				3.39		3.42		1.6
2026	ATC DC	ROS	26	5	3	0	12	12	67.0	8.71	1.84	1.12	.289	72.1%				3.62		3.53		1.2
2026	THE BAT	ROS	26	5	4	0	12	12	69.0	8.96	1.97	0.99	.290	72.0%				3.56		3.33		1.7
2026	THE BAT X	ROS	26	5	4	0	12	12	69.0	9.03	1.97	1.03	.292	71.8%				3.63		3.37		1.6
2026	OOPSY	ROS	26	5	4	0	12	12	73.0	8.76	2.25	1.03	.290	72.5%				3.55		3.56		1.4
Total	- - -	MLB		15	11	0	38	38	234.1	9.03	1.57	1.04	.270	73.2%	44.1%	12.4%	96.6	3.23	3.49	3.27	3.19	5.1

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
2021	NEB	NCAA	21	3	1	10	18	0	31.2	9.66	2.27	0.00	.278	93.8%				0.57		2.00
2023	ATL	A	23	4	2	0	13	13	51.1	7.19	2.63	0.53	.277	77.5%	51.0%	6.5%		2.63		3.86	4.02
2023	ATL	A+	23	1	0	0	3	3	13.2	9.22	0.66	0.00	.133	50.0%	36.7%	0.0%		1.98		2.12	3.46
2023	ATL	MiLB	23	5	2	0	16	16	65.0	7.62	2.22	0.42	.253	74.8%	48.6%	5.1%		2.49		3.49	3.91
2024	ATL	A+	24	2	1	0	6	6	32.0	9.56	2.53	0.28	.291	69.4%	58.5%	5.0%		2.53		2.78	3.16
2024	ATL	AA	24	2	0	0	2	2	13.0	11.77	0.69	0.00	.200	100.0%	54.2%	0.0%		0.00		1.16	1.67
2024	ATL	MiLB	24	4	1	0	8	8	45.0	10.20	2.00	0.20	.270	74.5%	57.5%	3.8%		1.80		2.31	2.73
2024	ATL	MLB	24	8	7	0	21	21	123.2	9.24	1.67	1.02	.279	74.5%	41.6%	11.2%	96.2	3.35	3.43	3.29	3.34	2.7
2025	ATL	ST	25	2	0	0	6	5	21.0	12.00	1.29	0.43	.333	71.4%	49.0%	8.3%		3.00		2.26	2.65
2025	ATL	MLB	25	7	4	0	17	17	110.2	8.78	1.46	1.06	.259	71.6%	46.9%	14.1%	97.0	3.09	3.56	3.25	3.01	2.4
2026	FGDC	PROJ	26	5	4	0	13	13	79.0	8.80	1.86	1.09	.294	73.3%				3.52		3.49		1.5
2026	Steamer	PROJ	26	5	4	0	13	13	77.0	8.79	2.07	1.09	.301	73.2%	45.3%			3.65		3.56	3.50	1.4
2026	ZiPS	PROJ	26	8	5	0	20	20	124.7	8.81	1.66	1.08	.287	73.5%				3.39		3.42		2.4
2026	ZiPS DC	PROJ	26	5	3	0	13	13	81.0	8.81	1.66	1.08	.287	73.5%				3.39		3.42		1.6
2026	ATC	PROJ	26	4	3	0	11	10	63.0	8.71	1.84	1.05	.291	71.3%				3.62		3.44		1.2
2026	THE BAT	PROJ	26	5	3	0	11	10	63.0	8.80	1.85	1.02	.290	71.6%				3.61		3.36		1.5
2026	THE BAT X	PROJ	26	5	3	0	11	10	63.0	9.28	1.90	1.02	.294	72.1%				3.58		3.28		1.5
2026	OOPSY	PROJ	26	6	4	0	13	13	79.0	8.76	2.25	1.03	.290	72.5%				3.55		3.56		1.5
2026	FGDC	ROS	26	5	4	0	12	12	71.0	8.94	2.18	1.05	.301	73.4%				3.59		3.51		1.3
2026	Steamer	ROS	26	5	4	0	12	12	71.0	8.94	2.18	1.05	.301	73.4%				3.59		3.51		1.3
2026	ZiPS DC	ROS	26	5	3	0	12	12	75.0	8.81	1.66	1.08	.287	73.5%				3.39		3.42		1.6
2026	ATC DC	ROS	26	5	3	0	12	12	67.0	8.71	1.84	1.12	.289	72.1%				3.62		3.53		1.2
2026	THE BAT	ROS	26	5	4	0	12	12	69.0	8.96	1.97	0.99	.290	72.0%				3.56		3.33		1.7
2026	THE BAT X	ROS	26	5	4	0	12	12	69.0	9.03	1.97	1.03	.292	71.8%				3.63		3.37		1.6
2026	OOPSY	ROS	26	5	4	0	12	12	73.0	8.76	2.25	1.03	.290	72.5%				3.55		3.56		1.4
Total	- - -	MLB		15	11	0	38	38	234.1	9.03	1.57	1.04	.270	73.2%	44.1%	12.4%	96.6	3.23	3.49	3.27	3.19	5.1

Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular SeasonCollege

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	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
2021	NEB	NCAA	3	1	0.57	18	0		0	0	10			31.2	123	22	2	2	0	8		2	2	0	34
2023	ATL	A	4	2	2.63	13	13		0	0	0	0	0	51.1	209	44	17	15	3	15	0	2	1	0	41
2023	ATL	A+	1	0	1.98	3	3		0	0	0	0	0	13.2	46	4	3	3	0	1	0	1	0	0	14
2023	ATL	MiLB	5	2	2.49	16	16		0	0	0	0	0	65.0	255	48	20	18	3	16	0	3	1	0	55
2024	ATL	A+	2	1	2.53	6	6		0	0	0	0	0	32.0	131	26	12	9	1	9	0	1	0	0	34
2024	ATL	AA	2	0	0.00	2	2		0	0	0	0	0	13.0	44	5	0	0	0	1	0	1	0	0	17
2024	ATL	MiLB	4	1	1.80	8	8		0	0	0	0	0	45.0	175	31	12	9	1	10	0	2	0	0	51
2024	ATL	MLB	8	7	3.35	21	21	12	0	0	0	0	0	123.2	500	106	49	46	14	23	1	6	3	0	127
2025	ATL	ST	2	0	3.00	6	5		0	0	0	1	0	21.0	81	17	7	7	1	3	0	1	1	0	28
2025	ATL	MLB	7	4	3.09	17	17	13	1	0	0	0	0	110.2	434	89	44	38	13	18	1	2	2	0	108
2026	FGDC	PROJ	5	4	3.52	13	13	8			0	0		79.0	321	73	33	31	10	16		3			77
2026	Steamer	PROJ	5	4	3.65	13	13	7	0	0	0	0		77.0	318	73	34	31	9	18	0	3			75
2026	ZiPS	PROJ	8	5	3.39	20	20				0	0		124.7	500	111	51	47	15	23	1	5	2	0	122
2026	ZiPS DC	PROJ	5	3	3.39	13	13	8			0	0		81.0	324	72	33	30	10	15		3			79
2026	ATC	PROJ	4	3	3.62	11	10	6			0	0		63.0	254	57	27	25	7	13	1	2			61
2026	THE BAT	PROJ	5	3	3.61	11	10	5			0	0		63.0	256	57	27	25	7	13	0	2			61
2026	THE BAT X	PROJ	5	3	3.58	11	10	5			0	0		63.0	256	57	27	25	7	13	0	2			65
2026	OOPSY	PROJ	6	4	3.55	13	13	8			0	0		79.0	320	70	34	31	9	20		3			77
2026	FGDC	ROS	5	4	3.59	12	12	7			0	0		71.0	294	67	31	28	8	17		3			71
2026	Steamer	ROS	5	4	3.59	12	12	7	0	0	0	0		71.0	294	67	31	28	8	17		3			71
2026	ZiPS DC	ROS	5	3	3.39	12	12	7			0	0		75.0	300	67	31	28	9	14		3			73
2026	ATC DC	ROS	5	3	3.62	12	12	7			0	0		67.0	272	61	29	27	8	14		2			65
2026	THE BAT	ROS	5	4	3.56	12	12				0	0		69.0	280	62	29	27	8	15	0	2			69
2026	THE BAT X	ROS	5	4	3.63	12	12	5			0	0		69.0	282	62	30	28	8	15	0	2			69
2026	OOPSY	ROS	5	4	3.55	12	12	7			0	0		73.0	296	65	31	29	8	18		3			71
Total	- - -	MLB	15	11	3.23	38	38	25	1	0	0	0	0	234.1	934	195	93	84	27	41	2	8	5	0	235

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	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
2021	NEB	NCAA	3	1	0.57	18	0		0	0	10			31.2	123	22	2	2	0	8		2	2	0	34
2023	ATL	A	4	2	2.63	13	13		0	0	0	0	0	51.1	209	44	17	15	3	15	0	2	1	0	41
2023	ATL	A+	1	0	1.98	3	3		0	0	0	0	0	13.2	46	4	3	3	0	1	0	1	0	0	14
2023	ATL	MiLB	5	2	2.49	16	16		0	0	0	0	0	65.0	255	48	20	18	3	16	0	3	1	0	55
2024	ATL	A+	2	1	2.53	6	6		0	0	0	0	0	32.0	131	26	12	9	1	9	0	1	0	0	34
2024	ATL	AA	2	0	0.00	2	2		0	0	0	0	0	13.0	44	5	0	0	0	1	0	1	0	0	17
2024	ATL	MiLB	4	1	1.80	8	8		0	0	0	0	0	45.0	175	31	12	9	1	10	0	2	0	0	51
2024	ATL	MLB	8	7	3.35	21	21	12	0	0	0	0	0	123.2	500	106	49	46	14	23	1	6	3	0	127
2025	ATL	ST	2	0	3.00	6	5		0	0	0	1	0	21.0	81	17	7	7	1	3	0	1	1	0	28
2025	ATL	MLB	7	4	3.09	17	17	13	1	0	0	0	0	110.2	434	89	44	38	13	18	1	2	2	0	108
2026	FGDC	PROJ	5	4	3.52	13	13	8			0	0		79.0	321	73	33	31	10	16		3			77
2026	Steamer	PROJ	5	4	3.65	13	13	7	0	0	0	0		77.0	318	73	34	31	9	18	0	3			75
2026	ZiPS	PROJ	8	5	3.39	20	20				0	0		124.7	500	111	51	47	15	23	1	5	2	0	122
2026	ZiPS DC	PROJ	5	3	3.39	13	13	8			0	0		81.0	324	72	33	30	10	15		3			79
2026	ATC	PROJ	4	3	3.62	11	10	6			0	0		63.0	254	57	27	25	7	13	1	2			61
2026	THE BAT	PROJ	5	3	3.61	11	10	5			0	0		63.0	256	57	27	25	7	13	0	2			61
2026	THE BAT X	PROJ	5	3	3.58	11	10	5			0	0		63.0	256	57	27	25	7	13	0	2			65
2026	OOPSY	PROJ	6	4	3.55	13	13	8			0	0		79.0	320	70	34	31	9	20		3			77
2026	FGDC	ROS	5	4	3.59	12	12	7			0	0		71.0	294	67	31	28	8	17		3			71
2026	Steamer	ROS	5	4	3.59	12	12	7	0	0	0	0		71.0	294	67	31	28	8	17		3			71
2026	ZiPS DC	ROS	5	3	3.39	12	12	7			0	0		75.0	300	67	31	28	9	14		3			73
2026	ATC DC	ROS	5	3	3.62	12	12	7			0	0		67.0	272	61	29	27	8	14		2			65
2026	THE BAT	ROS	5	4	3.56	12	12				0	0		69.0	280	62	29	27	8	15	0	2			69
2026	THE BAT X	ROS	5	4	3.63	12	12	5			0	0		69.0	282	62	30	28	8	15	0	2			69
2026	OOPSY	ROS	5	4	3.55	12	12	7			0	0		73.0	296	65	31	29	8	18		3			71
Total	- - -	MLB	15	11	3.23	38	38	25	1	0	0	0	0	234.1	934	195	93	84	27	41	2	8	5	0	235

Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular SeasonAveragesCollege

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	NEB	NCAA	9.66	2.27	4.25	0.00	27.6%	6.5%	21.1%	.195	0.95	.278	93.8%			2.00
2023	ATL	A	7.19	2.63	2.73	0.53	19.6%	7.2%	12.4%	.229	1.15	.277	77.5%	64	92	3.86
2023	ATL	A+	9.22	0.66	14.00	0.00	30.4%	2.2%	28.3%	.091	0.37	.133	50.0%	48	51	2.12
2023	ATL	MiLB	7.62	2.22	3.44	0.42	21.6%	6.3%	15.3%	.203	0.98	.253	74.8%	61	84	3.49
2024	ATL	A+	9.56	2.53	3.78	0.28	26.0%	6.9%	19.1%	.215	1.09	.291	69.4%	67	73	2.78
2024	ATL	AA	11.77	0.69	17.00	0.00	38.6%	2.3%	36.4%	.119	0.46	.200	100.0%	0	34	1.16
2024	ATL	MiLB	10.20	2.00	5.10	0.20	29.1%	5.7%	23.4%	.190	0.91	.270	74.5%	48	62	2.31
2024	ATL	MLB	9.24	1.67	5.52	1.02	25.4%	4.6%	20.8%	.225	1.04	.279	74.5%	81	83	3.29
2024			8.60	3.12	2.76	1.14	22.6%	8.2%	14.4%	.241	1.27	.289	72.1%			4.11
2025	ATL	ST	12.00	1.29	9.33	0.43	34.6%	3.7%	30.9%	.221	0.95	.333	71.4%	68	49	2.26
2025	ATL	MLB	8.78	1.46	6.00	1.06	24.9%	4.1%	20.7%	.215	0.97	.259	71.6%	73	81	3.25
2025			8.49	3.21	2.64	1.18	22.2%	8.4%	13.8%	.242	1.29	.289	72.3%			4.22
2026	FGDC	PROJ	8.80	1.86	4.73	1.09	24.0%	5.1%	18.9%	.241	1.13	.294	73.3%			3.49
2026	Steamer	PROJ	8.79	2.07	4.25	1.09	23.6%	5.6%	18.1%	.247	1.18	.301	73.2%			3.56
2026	ZiPS	PROJ	8.81	1.66	5.30	1.08	24.4%	4.6%	19.8%	.235	1.07	.287	73.5%			3.42
2026	ZiPS DC	PROJ	8.81	1.66	5.30	1.08	24.4%	4.6%	19.8%	.235	1.07	.287	73.5%			3.42
2026	ATC	PROJ	8.71	1.84	4.72	1.05	23.9%	5.1%	18.8%	.239	1.12	.291	71.3%			3.44
2026	THE BAT	PROJ	8.80	1.85	4.77	1.02	24.0%	5.0%	18.9%	.237	1.12	.290	71.6%			3.36
2026	THE BAT X	PROJ	9.28	1.90	4.89	1.02	25.3%	5.2%	20.1%	.236	1.12	.294	72.1%			3.28
2026	OOPSY	PROJ	8.76	2.25	3.90	1.03	24.0%	6.1%	17.8%	.237	1.14	.290	72.5%			3.56
2026	FGDC	ROS	8.94	2.18	4.10	1.05	24.0%	5.9%	18.2%	.245	1.18	.301	73.4%			3.51
2026	Steamer	ROS	8.94	2.18	4.10	1.05	24.0%	5.9%	18.2%	.245	1.18	.301	73.4%			3.51
2026	ZiPS DC	ROS	8.81	1.66	5.30	1.08	24.4%	4.6%	19.8%	.235	1.07	.287	73.5%			3.42
2026	ATC DC	ROS	8.71	1.84	4.72	1.12	23.9%	5.1%	18.8%	.239	1.12	.289	72.1%			3.53
2026	THE BAT	ROS	8.96	1.97	4.54	0.99	24.5%	5.4%	19.1%	.235	1.12	.290	72.0%			3.33
2026	THE BAT X	ROS	9.03	1.97	4.59	1.03	24.5%	5.3%	19.2%	.236	1.13	.292	71.8%			3.37
2026	OOPSY	ROS	8.76	2.25	3.90	1.03	24.0%	6.1%	17.8%	.237	1.14	.290	72.5%			3.56
Total	- - -	MLB	9.03	1.57	5.73	1.04	25.2%	4.4%	20.8%	.220	1.01	.270	73.2%	77	82	3.27

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	NEB	NCAA	9.66	2.27	4.25	0.00	27.6%	6.5%	21.1%	.195	0.95	.278	93.8%			2.00
2023	ATL	A	7.19	2.63	2.73	0.53	19.6%	7.2%	12.4%	.229	1.15	.277	77.5%	64	92	3.86
2023	ATL	A+	9.22	0.66	14.00	0.00	30.4%	2.2%	28.3%	.091	0.37	.133	50.0%	48	51	2.12
2023	ATL	MiLB	7.62	2.22	3.44	0.42	21.6%	6.3%	15.3%	.203	0.98	.253	74.8%	61	84	3.49
2024	ATL	A+	9.56	2.53	3.78	0.28	26.0%	6.9%	19.1%	.215	1.09	.291	69.4%	67	73	2.78
2024	ATL	AA	11.77	0.69	17.00	0.00	38.6%	2.3%	36.4%	.119	0.46	.200	100.0%	0	34	1.16
2024	ATL	MiLB	10.20	2.00	5.10	0.20	29.1%	5.7%	23.4%	.190	0.91	.270	74.5%	48	62	2.31
2024	ATL	MLB	9.24	1.67	5.52	1.02	25.4%	4.6%	20.8%	.225	1.04	.279	74.5%	81	83	3.29
2024			8.60	3.12	2.76	1.14	22.6%	8.2%	14.4%	.241	1.27	.289	72.1%			4.11
2025	ATL	ST	12.00	1.29	9.33	0.43	34.6%	3.7%	30.9%	.221	0.95	.333	71.4%	68	49	2.26
2025	ATL	MLB	8.78	1.46	6.00	1.06	24.9%	4.1%	20.7%	.215	0.97	.259	71.6%	73	81	3.25
2025			8.49	3.21	2.64	1.18	22.2%	8.4%	13.8%	.242	1.29	.289	72.3%			4.22
2026	FGDC	PROJ	8.80	1.86	4.73	1.09	24.0%	5.1%	18.9%	.241	1.13	.294	73.3%			3.49
2026	Steamer	PROJ	8.79	2.07	4.25	1.09	23.6%	5.6%	18.1%	.247	1.18	.301	73.2%			3.56
2026	ZiPS	PROJ	8.81	1.66	5.30	1.08	24.4%	4.6%	19.8%	.235	1.07	.287	73.5%			3.42
2026	ZiPS DC	PROJ	8.81	1.66	5.30	1.08	24.4%	4.6%	19.8%	.235	1.07	.287	73.5%			3.42
2026	ATC	PROJ	8.71	1.84	4.72	1.05	23.9%	5.1%	18.8%	.239	1.12	.291	71.3%			3.44
2026	THE BAT	PROJ	8.80	1.85	4.77	1.02	24.0%	5.0%	18.9%	.237	1.12	.290	71.6%			3.36
2026	THE BAT X	PROJ	9.28	1.90	4.89	1.02	25.3%	5.2%	20.1%	.236	1.12	.294	72.1%			3.28
2026	OOPSY	PROJ	8.76	2.25	3.90	1.03	24.0%	6.1%	17.8%	.237	1.14	.290	72.5%			3.56
2026	FGDC	ROS	8.94	2.18	4.10	1.05	24.0%	5.9%	18.2%	.245	1.18	.301	73.4%			3.51
2026	Steamer	ROS	8.94	2.18	4.10	1.05	24.0%	5.9%	18.2%	.245	1.18	.301	73.4%			3.51
2026	ZiPS DC	ROS	8.81	1.66	5.30	1.08	24.4%	4.6%	19.8%	.235	1.07	.287	73.5%			3.42
2026	ATC DC	ROS	8.71	1.84	4.72	1.12	23.9%	5.1%	18.8%	.239	1.12	.289	72.1%			3.53
2026	THE BAT	ROS	8.96	1.97	4.54	0.99	24.5%	5.4%	19.1%	.235	1.12	.290	72.0%			3.33
2026	THE BAT X	ROS	9.03	1.97	4.59	1.03	24.5%	5.3%	19.2%	.236	1.13	.292	71.8%			3.37
2026	OOPSY	ROS	8.76	2.25	3.90	1.03	24.0%	6.1%	17.8%	.237	1.14	.290	72.5%			3.56
Total	- - -	MLB	9.03	1.57	5.73	1.04	25.2%	4.4%	20.8%	.220	1.01	.270	73.2%	77	82	3.27

Preseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular SeasonCollege

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
2024	ATL	MLB	344	87.6	117.3	11.7	17	4.9%	137	39.8%	3.35	3.43
2025	ATL	MLB	306	88.8	112.5	8.3	23	7.5%	127	41.5%	3.09	3.56
Total	- - -	MLB	650	88.2	117.3	10.1	40	6.2%	264	40.6%	3.23	3.49

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
2024	ATL	MLB	344	87.6	117.3	11.7	17	4.9%	137	39.8%	3.35	3.43
2025	ATL	MLB	306	88.8	112.5	8.3	23	7.5%	127	41.5%	3.09	3.56
Total	- - -	MLB	650	88.2	117.3	10.1	40	6.2%	264	40.6%	3.23	3.49

Spencer Schwellenbach

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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