Luis Guerrero

Boston Red Sox

Age: 24

Bats/Throws: R/R

6'0" / 215

DOB: 8/5/2000

(24 years, 11 months, 18 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	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
2022	BOS	CPX	21	0	0	2	2	2.1	11.57	0.00	0.00	.000	100.0%	50.0%	0.0%		0.00		1.25	2.02
2022	BOS	A	21	4	3	6	18	23.2	14.07	5.32	0.38	.292	63.3%	39.6%	6.7%		4.18		3.55	3.76
2022	BOS	A+	21	0	2	1	7	13.0	13.15	2.08	0.00	.344	66.7%	35.5%	0.0%		2.08		1.66	3.02
2022	BOS	MiLB	21	4	5	9	27	39.0	13.62	3.92	0.23	.298	64.4%	38.6%	3.4%		3.23		2.78	3.41
2023	BOS	AA	22	3	2	18	43	49.2	10.69	5.44	0.36	.202	79.7%	34.9%	3.8%		1.81		3.36	4.34
2023	BOS	AAA	22	0	1	1	6	4.2	17.36	13.50	1.93	.375	72.9%	55.6%	33.3%		7.71		7.00	5.45
2023	BOS	MiLB	22	3	3	19	49	54.1	11.26	6.13	0.50	.213	78.7%	36.4%	5.5%		2.32		3.67	4.44
2023	BOS	ST	22	1	0	0	5	4.0	6.75	6.75	2.25	.182	89.3%	50.0%	20.0%		4.50		8.56	7.53
2024	BOS	AAA	23	5	3	2	42	54.1	13.09	5.30	0.99	.292	81.0%	33.3%	13.0%		3.31		4.36	4.44
2024	BOS	ST	23	1	0	0	5	6.1	8.53	4.26	0.00	.231	100.0%	46.2%	0.0%		0.00		3.74	4.55
2024	BOS	MLB	23	0	0	0	9	10.0	8.10	1.80	0.00	.240	87.5%	41.7%	0.0%	97.5	0.00	2.72	1.97	3.63	0.3
2025	BOS	ST	24	0	0	0	7	5.2	15.88	14.29	0.00	.364	62.5%	27.3%	0.0%		9.53		6.56	7.81
2025	FGDC	PROJ	24	3	3	0	44	44.0	9.22	4.71	1.05	.292	70.0%				4.54		4.46		0.0
2025	Steamer	PROJ	24	2	3	0	52	52.0	8.88	4.42	1.18	.297	71.6%	38.9%			4.52		4.54	4.57	-0.1
2025	ZiPS	PROJ	24	4	4	0	49	59.3	9.56	5.01	0.91	.288	68.4%				4.55		4.38		0.0
2025	ZiPS DC	PROJ	24	3	3	0	44	44.0	9.56	5.01	0.91	.288	68.4%				4.55		4.38		0.0
2025	ATC	PROJ	24	2	2	0	25	28.0	9.21	4.58	1.09	.281	69.9%				4.39		4.37		0.0
2025	OOPSY	PROJ	24	2	2	0	44	44.0	10.16	4.72	1.04	.289	74.0%				3.96		4.14		0.0
2025	BOS	AAA	24	2	1	1	15	20.1	7.08	4.87	2.21	.164	78.9%	28.8%	16.1%		4.43		6.90	6.30
2025	BOS	MLB	24	0	1	0	13	17.1	5.19	7.27	0.00	.188	65.2%	45.8%	0.0%	96.6	4.15	6.11	4.36	5.82	0.0
2025	FGDC	ROS	24	1	1	0	11	11.0	8.39	5.21	1.01	.295	68.8%				4.84		4.66		0.0
2025	Steamer	ROS	24	0	1	0	11	11.0	7.79	4.89	1.26	.295	70.7%				4.96		4.97		-0.1
2025	ZiPS	ROS	24	1	1		15	18.0	9.00	5.53	0.77	.295	67.0%				4.72		4.34		0.0
2025	ZiPS DC	ROS	24	1	1	0	11	11.0	9.00	5.53	0.77	.295	67.0%				4.72		4.34		0.0
2025	ATC DC	ROS	24	1	0	0	11	11.0	7.91	4.80	1.04	.266	69.6%				4.42		4.60		0.0
2025	THE BAT	ROS	24	0	0	0	11	6.0	7.73	4.43	1.21	.268	69.8%				4.60		4.78		0.0
2025	OOPSY	ROS	24	1	1	0	11	11.0	8.64	4.86	1.18	.288	70.5%				4.59		4.65		0.0
Total	- - -	MLB		0	1	0	22	27.1	6.26	5.27	0.00	.205	71.0%	44.4%	0.0%	96.9	2.63		3.48	5.02	0.3

Season	Team	Level	Age	W W - Wins	L L - Losses	SV SV - Saves	G G - Games Pitched	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
2022	BOS	CPX	21	0	0	2	2	2.1	11.57	0.00	0.00	.000	100.0%	50.0%	0.0%		0.00		1.25	2.02
2022	BOS	A	21	4	3	6	18	23.2	14.07	5.32	0.38	.292	63.3%	39.6%	6.7%		4.18		3.55	3.76
2022	BOS	A+	21	0	2	1	7	13.0	13.15	2.08	0.00	.344	66.7%	35.5%	0.0%		2.08		1.66	3.02
2022	BOS	MiLB	21	4	5	9	27	39.0	13.62	3.92	0.23	.298	64.4%	38.6%	3.4%		3.23		2.78	3.41
2023	BOS	AA	22	3	2	18	43	49.2	10.69	5.44	0.36	.202	79.7%	34.9%	3.8%		1.81		3.36	4.34
2023	BOS	AAA	22	0	1	1	6	4.2	17.36	13.50	1.93	.375	72.9%	55.6%	33.3%		7.71		7.00	5.45
2023	BOS	MiLB	22	3	3	19	49	54.1	11.26	6.13	0.50	.213	78.7%	36.4%	5.5%		2.32		3.67	4.44
2023	BOS	ST	22	1	0	0	5	4.0	6.75	6.75	2.25	.182	89.3%	50.0%	20.0%		4.50		8.56	7.53
2024	BOS	AAA	23	5	3	2	42	54.1	13.09	5.30	0.99	.292	81.0%	33.3%	13.0%		3.31		4.36	4.44
2024	BOS	ST	23	1	0	0	5	6.1	8.53	4.26	0.00	.231	100.0%	46.2%	0.0%		0.00		3.74	4.55
2024	BOS	MLB	23	0	0	0	9	10.0	8.10	1.80	0.00	.240	87.5%	41.7%	0.0%	97.5	0.00	2.72	1.97	3.63	0.3
2025	BOS	ST	24	0	0	0	7	5.2	15.88	14.29	0.00	.364	62.5%	27.3%	0.0%		9.53		6.56	7.81
2025	FGDC	PROJ	24	3	3	0	44	44.0	9.22	4.71	1.05	.292	70.0%				4.54		4.46		0.0
2025	Steamer	PROJ	24	2	3	0	52	52.0	8.88	4.42	1.18	.297	71.6%	38.9%			4.52		4.54	4.57	-0.1
2025	ZiPS	PROJ	24	4	4	0	49	59.3	9.56	5.01	0.91	.288	68.4%				4.55		4.38		0.0
2025	ZiPS DC	PROJ	24	3	3	0	44	44.0	9.56	5.01	0.91	.288	68.4%				4.55		4.38		0.0
2025	ATC	PROJ	24	2	2	0	25	28.0	9.21	4.58	1.09	.281	69.9%				4.39		4.37		0.0
2025	OOPSY	PROJ	24	2	2	0	44	44.0	10.16	4.72	1.04	.289	74.0%				3.96		4.14		0.0
2025	BOS	AAA	24	2	1	1	15	20.1	7.08	4.87	2.21	.164	78.9%	28.8%	16.1%		4.43		6.90	6.30
2025	BOS	MLB	24	0	1	0	13	17.1	5.19	7.27	0.00	.188	65.2%	45.8%	0.0%	96.6	4.15	6.11	4.36	5.82	0.0
2025	FGDC	ROS	24	1	1	0	11	11.0	8.39	5.21	1.01	.295	68.8%				4.84		4.66		0.0
2025	Steamer	ROS	24	0	1	0	11	11.0	7.79	4.89	1.26	.295	70.7%				4.96		4.97		-0.1
2025	ZiPS	ROS	24	1	1		15	18.0	9.00	5.53	0.77	.295	67.0%				4.72		4.34		0.0
2025	ZiPS DC	ROS	24	1	1	0	11	11.0	9.00	5.53	0.77	.295	67.0%				4.72		4.34		0.0
2025	ATC DC	ROS	24	1	0	0	11	11.0	7.91	4.80	1.04	.266	69.6%				4.42		4.60		0.0
2025	THE BAT	ROS	24	0	0	0	11	6.0	7.73	4.43	1.21	.268	69.8%				4.60		4.78		0.0
2025	OOPSY	ROS	24	1	1	0	11	11.0	8.64	4.86	1.18	.288	70.5%				4.59		4.65		0.0
Total	- - -	MLB		0	1	0	22	27.1	6.26	5.27	0.00	.205	71.0%	44.4%	0.0%	96.9	2.63		3.48	5.02	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	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
2022	BOS	CPX	0	0	0.00	2		0	0	2	0	0	2.1	7	0	0	0	0	0	0	0	0	0	3
2022	BOS	A	4	3	4.18	18		0	0	6	0	1	23.2	104	15	13	11	1	14	1	4	4	1	37
2022	BOS	A+	0	2	2.08	7		0	0	1	1	0	13.0	55	11	5	3	0	3	0	1	1	0	19
2022	BOS	MiLB	4	5	3.23	27		0	0	9	1	1	39.0	166	26	18	14	1	17	1	5	5	1	59
2023	BOS	AA	3	2	1.81	43		0	0	18	0	4	49.2	212	26	14	10	2	30	1	2	8	2	59
2023	BOS	AAA	0	1	7.71	6		0	0	1	2	1	4.2	25	4	4	4	1	7	0	0	0	0	9
2023	BOS	MiLB	3	3	2.32	49		0	0	19	2	5	54.1	237	30	18	14	3	37	1	2	8	2	68
2023	BOS	ST	1	0	4.50	5		0	0	0	0	0	4.0	19	3	2	2	1	3	0	1	0	0	3
2024	BOS	AAA	5	3	3.31	42		0	0	2	4	4	54.1	239	39	22	20	6	32	0	9	2	0	79
2024	BOS	ST	1	0	0.00	5		0	0	0	0	0	6.1	23	3	0	0	0	3	0	1	0	0	6
2024	BOS	MLB	0	0	0.00	9	0	0	0	0	3	0	10.0	36	6	1	0	0	2	0	0	0	0	9
2025	BOS	ST	0	0	9.53	7		0	0	0	1	0	5.2	33	4	6	6	0	9	0	3	1	0	10
2025	FGDC	PROJ	3	3	4.54	44	0			0	4		44.0	194	39	24	22	5	23		4			45
2025	Steamer	PROJ	2	3	4.52	52	0	0	0	0	4		52.0	228	49	28	26	7	26	1	3			51
2025	ZiPS	PROJ	4	4	4.55	49				0	4		59.3	262	50	32	30	6	33	1	7	5	1	63
2025	ZiPS DC	PROJ	3	3	4.55	44	0			0	4		44.0	194	37	24	22	4	24		5			47
2025	ATC	PROJ	2	2	4.39	25	0			0	3		28.0	122	24	15	14	3	14	0	1			29
2025	OOPSY	PROJ	2	2	3.96	44	0			0	4		44.0	194	38	21	19	5	23		2			50
2025	BOS	AAA	2	1	4.43	15		0	0	1	0	3	20.1	88	14	11	10	5	11	0	1	2	1	16
2025	BOS	MLB	0	1	4.15	13	0	0	0	0	0	0	17.1	72	9	8	8	0	14	0	0	0	0	10
2025	FGDC	ROS	1	1	4.84	11	0			0	0		11.0	50	10	6	6	1	6		1			10
2025	Steamer	ROS	0	1	4.96	11	0	0	0	0	0		11.0	50	11	7	6	2	6		1			10
2025	ZiPS	ROS	1	1	4.72	15							18.0	80	16	10	9	2	11		2			18
2025	ZiPS DC	ROS	1	1	4.72	11	0			0	0		11.0	50	10	6	6	1	7		1			11
2025	ATC DC	ROS	1	0	4.42	11	0			0	0		11.0	48	9	6	5	1	6		1			10
2025	THE BAT	ROS	0	0	4.60	11				0	0		6.0	27	5	3	3	1	3	0	0			5
2025	OOPSY	ROS	1	1	4.59	11	0			0	0		11.0	49	10	6	6	1	6		1			11
Total	- - -	MLB	0	1	2.63	22	0	0	0	0	3	0	27.1	108	15	9	8	0	16	0	0	0	0	19

Season	Team	Level	W W - Wins	L L - Losses	ERA ERA - Earned Run Average ((ER*9)/IP)	G G - Games Pitched	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
2022	BOS	CPX	0	0	0.00	2		0	0	2	0	0	2.1	7	0	0	0	0	0	0	0	0	0	3
2022	BOS	A	4	3	4.18	18		0	0	6	0	1	23.2	104	15	13	11	1	14	1	4	4	1	37
2022	BOS	A+	0	2	2.08	7		0	0	1	1	0	13.0	55	11	5	3	0	3	0	1	1	0	19
2022	BOS	MiLB	4	5	3.23	27		0	0	9	1	1	39.0	166	26	18	14	1	17	1	5	5	1	59
2023	BOS	AA	3	2	1.81	43		0	0	18	0	4	49.2	212	26	14	10	2	30	1	2	8	2	59
2023	BOS	AAA	0	1	7.71	6		0	0	1	2	1	4.2	25	4	4	4	1	7	0	0	0	0	9
2023	BOS	MiLB	3	3	2.32	49		0	0	19	2	5	54.1	237	30	18	14	3	37	1	2	8	2	68
2023	BOS	ST	1	0	4.50	5		0	0	0	0	0	4.0	19	3	2	2	1	3	0	1	0	0	3
2024	BOS	AAA	5	3	3.31	42		0	0	2	4	4	54.1	239	39	22	20	6	32	0	9	2	0	79
2024	BOS	ST	1	0	0.00	5		0	0	0	0	0	6.1	23	3	0	0	0	3	0	1	0	0	6
2024	BOS	MLB	0	0	0.00	9	0	0	0	0	3	0	10.0	36	6	1	0	0	2	0	0	0	0	9
2025	BOS	ST	0	0	9.53	7		0	0	0	1	0	5.2	33	4	6	6	0	9	0	3	1	0	10
2025	FGDC	PROJ	3	3	4.54	44	0			0	4		44.0	194	39	24	22	5	23		4			45
2025	Steamer	PROJ	2	3	4.52	52	0	0	0	0	4		52.0	228	49	28	26	7	26	1	3			51
2025	ZiPS	PROJ	4	4	4.55	49				0	4		59.3	262	50	32	30	6	33	1	7	5	1	63
2025	ZiPS DC	PROJ	3	3	4.55	44	0			0	4		44.0	194	37	24	22	4	24		5			47
2025	ATC	PROJ	2	2	4.39	25	0			0	3		28.0	122	24	15	14	3	14	0	1			29
2025	OOPSY	PROJ	2	2	3.96	44	0			0	4		44.0	194	38	21	19	5	23		2			50
2025	BOS	AAA	2	1	4.43	15		0	0	1	0	3	20.1	88	14	11	10	5	11	0	1	2	1	16
2025	BOS	MLB	0	1	4.15	13	0	0	0	0	0	0	17.1	72	9	8	8	0	14	0	0	0	0	10
2025	FGDC	ROS	1	1	4.84	11	0			0	0		11.0	50	10	6	6	1	6		1			10
2025	Steamer	ROS	0	1	4.96	11	0	0	0	0	0		11.0	50	11	7	6	2	6		1			10
2025	ZiPS	ROS	1	1	4.72	15							18.0	80	16	10	9	2	11		2			18
2025	ZiPS DC	ROS	1	1	4.72	11	0			0	0		11.0	50	10	6	6	1	7		1			11
2025	ATC DC	ROS	1	0	4.42	11	0			0	0		11.0	48	9	6	5	1	6		1			10
2025	THE BAT	ROS	0	0	4.60	11				0	0		6.0	27	5	3	3	1	3	0	0			5
2025	OOPSY	ROS	1	1	4.59	11	0			0	0		11.0	49	10	6	6	1	6		1			11
Total	- - -	MLB	0	1	2.63	22	0	0	0	0	3	0	27.1	108	15	9	8	0	16	0	0	0	0	19

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
2022	BOS	CPX	11.57	0.00	3.00	0.00	42.9%	0.0%	42.9%	.000	0.00	.000	100.0%	0	28	1.25
2022	BOS	A	14.07	5.32	2.64	0.38	35.6%	13.5%	22.1%	.174	1.23	.292	63.3%	90	80	3.55
2022	BOS	A+	13.15	2.08	6.33	0.00	34.5%	5.5%	29.1%	.216	1.08	.344	66.7%	46	37	1.66
2022	BOS	MiLB	13.62	3.92	3.47	0.23	35.5%	10.2%	25.3%	.181	1.10	.298	64.4%	70	62	2.78
2023	BOS	AA	10.69	5.44	1.97	0.36	27.8%	14.2%	13.7%	.144	1.13	.202	79.7%	41	79	3.36
2023	BOS	AAA	17.36	13.50	1.29	1.93	36.0%	28.0%	8.0%	.222	2.36	.375	72.9%	148	134	7.00
2023	BOS	MiLB	11.26	6.13	1.84	0.50	28.7%	15.6%	13.1%	.152	1.23	.213	78.7%	50	84	3.67
2023	BOS	ST	6.75	6.75	1.00	2.25	15.8%	15.8%	0.0%	.200	1.50	.182	89.3%	89	177	8.56
2024	BOS	AAA	13.09	5.30	2.47	0.99	33.1%	13.4%	19.7%	.197	1.31	.292	81.0%	68	90	4.36
2024	BOS	ST	8.53	4.26	2.00	0.00	26.1%	13.0%	13.0%	.158	0.95	.231	100.0%	0	80	3.74
2024	BOS	MLB	8.10	1.80	4.50	0.00	25.0%	5.6%	19.4%	.176	0.80	.240	87.5%	0	47	1.97
2024			8.60	3.12	2.76	1.14	22.6%	8.2%	14.4%	.241	1.27	.289	72.1%			4.11
2025	BOS	ST	15.88	14.29	1.11	0.00	30.3%	27.3%	3.0%	.190	2.29	.364	62.5%	185	133	6.56
2025	FGDC	PROJ	9.22	4.71	1.96	1.05	23.3%	11.9%	11.4%	.235	1.42	.292	70.0%			4.46
2025	Steamer	PROJ	8.88	4.42	2.01	1.18	22.5%	11.2%	11.3%	.245	1.43	.297	71.6%			4.54
2025	ZiPS	PROJ	9.56	5.01	1.91	0.91	24.0%	12.6%	11.5%	.225	1.40	.288	68.4%			4.38
2025	ZiPS DC	PROJ	9.56	5.01	1.91	0.91	24.0%	12.6%	11.5%	.225	1.40	.288	68.4%			4.38
2025	ATC	PROJ	9.21	4.58	2.01	1.09	23.6%	11.7%	11.9%	.228	1.37	.281	69.9%			4.37
2025	OOPSY	PROJ	10.16	4.72	2.15	1.04	25.6%	11.9%	13.7%	.226	1.39	.289	74.0%			4.14
2025	BOS	AAA	7.08	4.87	1.45	2.21	18.2%	12.5%	5.7%	.184	1.23	.164	78.9%	94	146	6.90
2025	BOS	MLB	5.19	7.27	0.71	0.00	13.9%	19.4%	-5.6%	.155	1.33	.188	65.2%	98	105	4.36
2025			8.37	3.24	2.59	1.14	21.9%	8.5%	13.4%	.243	1.29	.289	72.6%			4.20
2025	FGDC	ROS	8.39	5.21	1.61	1.01	20.8%	12.9%	7.9%	.243	1.51	.295	68.8%			4.66
2025	Steamer	ROS	7.79	4.89	1.59	1.26	19.3%	12.1%	7.2%	.255	1.53	.295	70.7%			4.97
2025	ZiPS	ROS	9.00	5.53	1.63	0.77	22.4%	13.8%	8.6%	.232	1.48	.295	67.0%			4.34
2025	ZiPS DC	ROS	9.00	5.53	1.63	0.77	22.4%	13.8%	8.6%	.232	1.48	.295	67.0%			4.34
2025	ATC DC	ROS	7.91	4.80	1.65	1.04	20.2%	12.3%	7.9%	.226	1.38	.266	69.6%			4.60
2025	THE BAT	ROS	7.73	4.43	1.75	1.21	19.7%	11.3%	8.4%	.233	1.38	.268	69.8%			4.78
2025	OOPSY	ROS	8.64	4.86	1.78	1.18	21.9%	12.3%	9.6%	.239	1.45	.288	70.5%			4.65
Total	- - -	MLB	6.26	5.27	1.19	0.00	17.6%	14.8%	2.8%	.163	1.13	.205	71.0%	62	84	3.48

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
2022	BOS	CPX	11.57	0.00	3.00	0.00	42.9%	0.0%	42.9%	.000	0.00	.000	100.0%	0	28	1.25
2022	BOS	A	14.07	5.32	2.64	0.38	35.6%	13.5%	22.1%	.174	1.23	.292	63.3%	90	80	3.55
2022	BOS	A+	13.15	2.08	6.33	0.00	34.5%	5.5%	29.1%	.216	1.08	.344	66.7%	46	37	1.66
2022	BOS	MiLB	13.62	3.92	3.47	0.23	35.5%	10.2%	25.3%	.181	1.10	.298	64.4%	70	62	2.78
2023	BOS	AA	10.69	5.44	1.97	0.36	27.8%	14.2%	13.7%	.144	1.13	.202	79.7%	41	79	3.36
2023	BOS	AAA	17.36	13.50	1.29	1.93	36.0%	28.0%	8.0%	.222	2.36	.375	72.9%	148	134	7.00
2023	BOS	MiLB	11.26	6.13	1.84	0.50	28.7%	15.6%	13.1%	.152	1.23	.213	78.7%	50	84	3.67
2023	BOS	ST	6.75	6.75	1.00	2.25	15.8%	15.8%	0.0%	.200	1.50	.182	89.3%	89	177	8.56
2024	BOS	AAA	13.09	5.30	2.47	0.99	33.1%	13.4%	19.7%	.197	1.31	.292	81.0%	68	90	4.36
2024	BOS	ST	8.53	4.26	2.00	0.00	26.1%	13.0%	13.0%	.158	0.95	.231	100.0%	0	80	3.74
2024	BOS	MLB	8.10	1.80	4.50	0.00	25.0%	5.6%	19.4%	.176	0.80	.240	87.5%	0	47	1.97
2024			8.60	3.12	2.76	1.14	22.6%	8.2%	14.4%	.241	1.27	.289	72.1%			4.11
2025	BOS	ST	15.88	14.29	1.11	0.00	30.3%	27.3%	3.0%	.190	2.29	.364	62.5%	185	133	6.56
2025	FGDC	PROJ	9.22	4.71	1.96	1.05	23.3%	11.9%	11.4%	.235	1.42	.292	70.0%			4.46
2025	Steamer	PROJ	8.88	4.42	2.01	1.18	22.5%	11.2%	11.3%	.245	1.43	.297	71.6%			4.54
2025	ZiPS	PROJ	9.56	5.01	1.91	0.91	24.0%	12.6%	11.5%	.225	1.40	.288	68.4%			4.38
2025	ZiPS DC	PROJ	9.56	5.01	1.91	0.91	24.0%	12.6%	11.5%	.225	1.40	.288	68.4%			4.38
2025	ATC	PROJ	9.21	4.58	2.01	1.09	23.6%	11.7%	11.9%	.228	1.37	.281	69.9%			4.37
2025	OOPSY	PROJ	10.16	4.72	2.15	1.04	25.6%	11.9%	13.7%	.226	1.39	.289	74.0%			4.14
2025	BOS	AAA	7.08	4.87	1.45	2.21	18.2%	12.5%	5.7%	.184	1.23	.164	78.9%	94	146	6.90
2025	BOS	MLB	5.19	7.27	0.71	0.00	13.9%	19.4%	-5.6%	.155	1.33	.188	65.2%	98	105	4.36
2025			8.37	3.24	2.59	1.14	21.9%	8.5%	13.4%	.243	1.29	.289	72.6%			4.20
2025	FGDC	ROS	8.39	5.21	1.61	1.01	20.8%	12.9%	7.9%	.243	1.51	.295	68.8%			4.66
2025	Steamer	ROS	7.79	4.89	1.59	1.26	19.3%	12.1%	7.2%	.255	1.53	.295	70.7%			4.97
2025	ZiPS	ROS	9.00	5.53	1.63	0.77	22.4%	13.8%	8.6%	.232	1.48	.295	67.0%			4.34
2025	ZiPS DC	ROS	9.00	5.53	1.63	0.77	22.4%	13.8%	8.6%	.232	1.48	.295	67.0%			4.34
2025	ATC DC	ROS	7.91	4.80	1.65	1.04	20.2%	12.3%	7.9%	.226	1.38	.266	69.6%			4.60
2025	THE BAT	ROS	7.73	4.43	1.75	1.21	19.7%	11.3%	8.4%	.233	1.38	.268	69.8%			4.78
2025	OOPSY	ROS	8.64	4.86	1.78	1.18	21.9%	12.3%	9.6%	.239	1.45	.288	70.5%			4.65
Total	- - -	MLB	6.26	5.27	1.19	0.00	17.6%	14.8%	2.8%	.163	1.13	.205	71.0%	62	84	3.48

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	BOS	AAA	9	89.5	101.9	8.6			4	44.4%	7.71
2024	BOS	AAA	119	85.1	109.7	16.7			37	31.1%	3.31
2024	BOS	MLB	25	86.3	111.5	18.9	2	8.0%	9	36.0%	0.00	2.72
2025	BOS	AAA	60	88.8	110.6	21.0			26	43.3%	4.43
2025	BOS	MLB	48	88.4	112.8	12.3	3	6.3%	16	33.3%	4.15	6.11
Total	- - -	MLB	73	87.7	112.8	14.5	5	6.8%	25	34.2%	2.63

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	BOS	AAA	9	89.5	101.9	8.6			4	44.4%	7.71
2024	BOS	AAA	119	85.1	109.7	16.7			37	31.1%	3.31
2024	BOS	MLB	25	86.3	111.5	18.9	2	8.0%	9	36.0%	0.00	2.72
2025	BOS	AAA	60	88.8	110.6	21.0			26	43.3%	4.43
2025	BOS	MLB	48	88.4	112.8	12.3	3	6.3%	16	33.3%	4.15	6.11
Total	- - -	MLB	73	87.7	112.8	14.5	5	6.8%	25	34.2%	2.63

Luis Guerrero

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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