Eduardo Rivera

Boston Red Sox (AAA)

Age: 23

Bats/Throws: L/L

6'7" / 237

DOB: 6/13/2003

(23 years, 2 months, 1 day)

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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
2021	OAK	CPX	18	0	0	0	1	1	1.0	9.00	0.00	0.00	.000	100.0%	0.0%	0.0%		0.00		2.48	2.48
2022	OAK	CPX	19	0	0	0	8	3	13.2	14.49	7.24	0.00	.429	73.1%	58.8%	0.0%		3.29		3.44	4.21
2023	OAK	A	20	2	7	0	16	12	69.0	9.78	5.74	0.39	.328	61.2%	48.7%	4.3%		5.35		4.67	5.12
2024	BOS	CPX	21	1	1	1	4	1	7.2	9.39	2.35	0.00	.385	50.0%	40.0%	0.0%		4.70		2.52	3.95
2024	OAK	A	21	0	0	2	4	0	2.2	10.13	0.00	0.00	.167	100.0%	16.7%	0.0%		0.00		1.82	3.41
2024	BOS	A	21	0	1	0	6	4	22.2	11.91	2.78	0.40	.255	58.3%	54.0%	6.7%		1.99		2.56	2.59
2024	OAK	A+	21	0	1	0	4	2	8.1	8.64	10.80	0.00	.407	38.1%	52.0%	0.0%		11.88		5.12	6.17
2024	---	MiLB	21	1	3	3	18	7	41.1	10.67	4.14	0.22	.318	49.5%	48.1%	2.5%		4.35		3.02	3.62
2025	BOS	A+	22	3	1	0	10	6	44.2	13.70	3.22	0.40	.229	80.6%	59.0%	8.3%		1.61		2.21	2.21
2025	BOS	AA	22	1	5	0	10	9	42.1	8.50	6.38	0.43	.271	72.8%	51.3%	6.5%		3.40		4.28	4.52
2025	BOS	MiLB	22	4	6	0	20	15	87.0	11.17	4.76	0.41	.254	75.7%	54.5%	7.3%		2.48		3.22	3.33
2026	BOS	ST	23	0	0	0	1	0	1.0	0.00	0.00	0.00	.250	100.0%	0.0%	0.0%		0.00		3.65	7.39
2026	Steamer	PROJ	23	0	0	0	0	0	1.0	7.16	4.53	1.12	.301	71.4%	47.1%			4.67		4.81	4.74	0.0
2026	ZiPS	PROJ	23	4	5	0	20	14	77.3	8.27	4.66	1.16	.289	70.7%				4.66		4.69		0.5
2026	OOPSY	PROJ	23	0	0	0	1	1	3.9	7.48	4.81	1.05	.304	68.2%				4.87		4.75		0.0
2026	BOS	AA	23	1	0	0	2	2	10.0	14.40	2.70	0.00	.300	88.9%	52.6%	0.0%		0.90		1.27	2.01
2026	BOS	AAA	23	6	2	0	24	3	45.2	10.84	5.32	0.59	.280	69.6%	51.9%	10.7%		2.96	5.52	4.16	4.42
2026	BOS	MiLB	23	7	2	0	26	5	55.2	11.48	4.85	0.49	.283	72.0%	52.0%	9.4%		2.59	5.52	3.64	3.99
2026	BOS	MLB	23	0	1	0	4	3	10.0	9.00	5.40	0.90	.259	55.6%	50.0%	11.1%	95.4	6.30	3.66	4.18	4.25	0.1
2026	FGDC	ROS	23	1	1	0	12	1	17.0	8.35	4.67	1.03	.297	71.6%				4.40		4.42		0.1
2026	Steamer	ROS	23	1	1	0	12	1	17.0	8.32	4.59	0.92	.300	73.2%				4.08		4.25		0.1
2026	ZiPS	ROS	23	1	1		4	3	14.0	8.38	4.75	1.15	.293	70.0%				4.72		4.60		0.1
2026	ZiPS DC	ROS	23	1	1	0	12	1	17.0	8.38	4.75	1.15	.293	70.0%				4.72		4.60		0.1
2026	ATC DC	ROS	23	0	0	0	12	1	16.0	8.40	4.13	1.34	.281	68.6%				4.91		4.71		0.0
2026	THE BAT	ROS	23	1	1	0	13	1	18.0	9.04	4.32	0.69	.275	73.9%				3.46		3.66		0.2
2026	THE BAT X	ROS	23	1	1	0	13	1	18.0	9.11	4.17	0.93	.281	72.4%				3.91		3.94		0.2
2026	OOPSY	ROS	23	1	2	0	12	1	16.0	8.41	4.53	0.92	.303	70.2%				4.32		4.20		0.1
Total	- - -	MLB		0	1	0	4	3	10.0	9.00	5.40	0.90	.259	55.6%	50.0%	11.1%	95.4	6.30	3.66	4.18	4.25	0.1

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	OAK	CPX	18	0	0	0	1	1	1.0	9.00	0.00	0.00	.000	100.0%	0.0%	0.0%		0.00		2.48	2.48
2022	OAK	CPX	19	0	0	0	8	3	13.2	14.49	7.24	0.00	.429	73.1%	58.8%	0.0%		3.29		3.44	4.21
2023	OAK	A	20	2	7	0	16	12	69.0	9.78	5.74	0.39	.328	61.2%	48.7%	4.3%		5.35		4.67	5.12
2024	BOS	CPX	21	1	1	1	4	1	7.2	9.39	2.35	0.00	.385	50.0%	40.0%	0.0%		4.70		2.52	3.95
2024	OAK	A	21	0	0	2	4	0	2.2	10.13	0.00	0.00	.167	100.0%	16.7%	0.0%		0.00		1.82	3.41
2024	BOS	A	21	0	1	0	6	4	22.2	11.91	2.78	0.40	.255	58.3%	54.0%	6.7%		1.99		2.56	2.59
2024	OAK	A+	21	0	1	0	4	2	8.1	8.64	10.80	0.00	.407	38.1%	52.0%	0.0%		11.88		5.12	6.17
2024	---	MiLB	21	1	3	3	18	7	41.1	10.67	4.14	0.22	.318	49.5%	48.1%	2.5%		4.35		3.02	3.62
2025	BOS	A+	22	3	1	0	10	6	44.2	13.70	3.22	0.40	.229	80.6%	59.0%	8.3%		1.61		2.21	2.21
2025	BOS	AA	22	1	5	0	10	9	42.1	8.50	6.38	0.43	.271	72.8%	51.3%	6.5%		3.40		4.28	4.52
2025	BOS	MiLB	22	4	6	0	20	15	87.0	11.17	4.76	0.41	.254	75.7%	54.5%	7.3%		2.48		3.22	3.33
2026	BOS	ST	23	0	0	0	1	0	1.0	0.00	0.00	0.00	.250	100.0%	0.0%	0.0%		0.00		3.65	7.39
2026	Steamer	PROJ	23	0	0	0	0	0	1.0	7.16	4.53	1.12	.301	71.4%	47.1%			4.67		4.81	4.74	0.0
2026	ZiPS	PROJ	23	4	5	0	20	14	77.3	8.27	4.66	1.16	.289	70.7%				4.66		4.69		0.5
2026	OOPSY	PROJ	23	0	0	0	1	1	3.9	7.48	4.81	1.05	.304	68.2%				4.87		4.75		0.0
2026	BOS	AA	23	1	0	0	2	2	10.0	14.40	2.70	0.00	.300	88.9%	52.6%	0.0%		0.90		1.27	2.01
2026	BOS	AAA	23	6	2	0	24	3	45.2	10.84	5.32	0.59	.280	69.6%	51.9%	10.7%		2.96	5.52	4.16	4.42
2026	BOS	MiLB	23	7	2	0	26	5	55.2	11.48	4.85	0.49	.283	72.0%	52.0%	9.4%		2.59	5.52	3.64	3.99
2026	BOS	MLB	23	0	1	0	4	3	10.0	9.00	5.40	0.90	.259	55.6%	50.0%	11.1%	95.4	6.30	3.66	4.18	4.25	0.1
2026	FGDC	ROS	23	1	1	0	12	1	17.0	8.35	4.67	1.03	.297	71.6%				4.40		4.42		0.1
2026	Steamer	ROS	23	1	1	0	12	1	17.0	8.32	4.59	0.92	.300	73.2%				4.08		4.25		0.1
2026	ZiPS	ROS	23	1	1		4	3	14.0	8.38	4.75	1.15	.293	70.0%				4.72		4.60		0.1
2026	ZiPS DC	ROS	23	1	1	0	12	1	17.0	8.38	4.75	1.15	.293	70.0%				4.72		4.60		0.1
2026	ATC DC	ROS	23	0	0	0	12	1	16.0	8.40	4.13	1.34	.281	68.6%				4.91		4.71		0.0
2026	THE BAT	ROS	23	1	1	0	13	1	18.0	9.04	4.32	0.69	.275	73.9%				3.46		3.66		0.2
2026	THE BAT X	ROS	23	1	1	0	13	1	18.0	9.11	4.17	0.93	.281	72.4%				3.91		3.94		0.2
2026	OOPSY	ROS	23	1	2	0	12	1	16.0	8.41	4.53	0.92	.303	70.2%				4.32		4.20		0.1
Total	- - -	MLB		0	1	0	4	3	10.0	9.00	5.40	0.90	.259	55.6%	50.0%	11.1%	95.4	6.30	3.66	4.18	4.25	0.1

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 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	OAK	CPX	0	0	0.00	1	1		0	0	0	0	0	1.0	4	0	0	0	0	0	0	0	0	0	1
2022	OAK	CPX	0	0	3.29	8	3		0	0	0	0	0	13.2	68	15	7	5	0	11	0	0	4	1	22
2023	OAK	A	2	7	5.35	16	12		0	0	0	0	0	69.0	323	67	48	41	3	44	0	6	6	2	75
2024	BOS	CPX	1	1	4.70	4	1		0	0	1	0	1	7.2	36	10	6	4	0	2	0	0	0	0	8
2024	OAK	A	0	0	0.00	4	0		0	0	2	0	0	2.2	9	1	0	0	0	0	0	0	0	0	3
2024	BOS	A	0	1	1.99	6	4		0	0	0	0	0	22.2	90	14	10	5	1	7	0	1	2	0	30
2024	OAK	A+	0	1	11.88	4	2		0	0	0	0	0	8.1	45	11	13	11	0	10	0	0	1	0	8
2024	---	MiLB	1	3	4.35	18	7		0	0	3	0	1	41.1	180	36	29	20	1	19	0	1	3	0	49
2025	BOS	A+	3	1	1.61	10	6		0	0	0	0	0	44.2	172	21	10	8	2	16	0	3	0	0	68
2025	BOS	AA	1	5	3.40	10	9		0	0	0	0	0	42.1	192	34	20	16	2	30	0	2	0	1	40
2025	BOS	MiLB	4	6	2.48	20	15		0	0	0	0	0	87.0	364	55	30	24	4	46	0	5	0	1	108
2026	BOS	ST	0	0	0.00	1	0		0	0	0	0	0	1.0	4	1	0	0	0	0	0	0	0	0	0
2026	Steamer	PROJ	0	0	4.67	0	0	0	0	0	0	0		1.0	4	1	1	1	0	1	0	0			1
2026	ZiPS	PROJ	4	5	4.66	20	14				0	0		77.3	343	73	43	40	10	40	0	4	1	1	71
2026	OOPSY	PROJ	0	0	4.87	1	1	0			0	0		3.9	17	4	2	2	0	2	0	0			3
2026	BOS	AA	1	0	0.90	2	2		0	0	0	0	0	10.0	39	6	1	1	0	3	0	0	0	0	16
2026	BOS	AAA	6	2	2.96	24	3		0	0	0	2	0	45.2	198	33	23	15	3	27	0	6	4	0	55
2026	BOS	MiLB	7	2	2.59	26	5		0	0	0	2	0	55.2	237	39	24	16	3	30	0	6	4	0	71
2026	BOS	MLB	0	1	6.30	4	3	0	0	0	0	0	0	10.0	44	8	7	7	1	6	0	0	1	0	10
2026	FGDC	ROS	1	1	4.40	12	1	0			0	0		17.0	76	16	9	8	2	9		1			16
2026	Steamer	ROS	1	1	4.08	12	1	0	0	0	0	0		17.0	77	17	9	8	2	9		1			16
2026	ZiPS	ROS	1	1	4.72	4	3							14.0	63	14	8	7	2	7		1			13
2026	ZiPS DC	ROS	1	1	4.72	12	1	0			0	0		17.0	75	16	10	9	2	9		1			16
2026	ATC DC	ROS	0	0	4.91	12	1	0			0	0		16.0	73	16	9	9	2	7		1			15
2026	THE BAT	ROS	1	1	3.46	13	1				0	0		18.0	75	14	7	7	1	8	0	1			18
2026	THE BAT X	ROS	1	1	3.91	13	1	0			0	0		18.0	76	15	8	8	2	8	0	1			18
2026	OOPSY	ROS	1	2	4.32	12	1	1			0	0		16.0	68	15	8	8	2	8		1			15
Total	- - -	MLB	0	1	6.30	4	3	0	0	0	0	0	0	10.0	44	8	7	7	1	6	0	0	1	0	10

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	OAK	CPX	0	0	0.00	1	1		0	0	0	0	0	1.0	4	0	0	0	0	0	0	0	0	0	1
2022	OAK	CPX	0	0	3.29	8	3		0	0	0	0	0	13.2	68	15	7	5	0	11	0	0	4	1	22
2023	OAK	A	2	7	5.35	16	12		0	0	0	0	0	69.0	323	67	48	41	3	44	0	6	6	2	75
2024	BOS	CPX	1	1	4.70	4	1		0	0	1	0	1	7.2	36	10	6	4	0	2	0	0	0	0	8
2024	OAK	A	0	0	0.00	4	0		0	0	2	0	0	2.2	9	1	0	0	0	0	0	0	0	0	3
2024	BOS	A	0	1	1.99	6	4		0	0	0	0	0	22.2	90	14	10	5	1	7	0	1	2	0	30
2024	OAK	A+	0	1	11.88	4	2		0	0	0	0	0	8.1	45	11	13	11	0	10	0	0	1	0	8
2024	---	MiLB	1	3	4.35	18	7		0	0	3	0	1	41.1	180	36	29	20	1	19	0	1	3	0	49
2025	BOS	A+	3	1	1.61	10	6		0	0	0	0	0	44.2	172	21	10	8	2	16	0	3	0	0	68
2025	BOS	AA	1	5	3.40	10	9		0	0	0	0	0	42.1	192	34	20	16	2	30	0	2	0	1	40
2025	BOS	MiLB	4	6	2.48	20	15		0	0	0	0	0	87.0	364	55	30	24	4	46	0	5	0	1	108
2026	BOS	ST	0	0	0.00	1	0		0	0	0	0	0	1.0	4	1	0	0	0	0	0	0	0	0	0
2026	Steamer	PROJ	0	0	4.67	0	0	0	0	0	0	0		1.0	4	1	1	1	0	1	0	0			1
2026	ZiPS	PROJ	4	5	4.66	20	14				0	0		77.3	343	73	43	40	10	40	0	4	1	1	71
2026	OOPSY	PROJ	0	0	4.87	1	1	0			0	0		3.9	17	4	2	2	0	2	0	0			3
2026	BOS	AA	1	0	0.90	2	2		0	0	0	0	0	10.0	39	6	1	1	0	3	0	0	0	0	16
2026	BOS	AAA	6	2	2.96	24	3		0	0	0	2	0	45.2	198	33	23	15	3	27	0	6	4	0	55
2026	BOS	MiLB	7	2	2.59	26	5		0	0	0	2	0	55.2	237	39	24	16	3	30	0	6	4	0	71
2026	BOS	MLB	0	1	6.30	4	3	0	0	0	0	0	0	10.0	44	8	7	7	1	6	0	0	1	0	10
2026	FGDC	ROS	1	1	4.40	12	1	0			0	0		17.0	76	16	9	8	2	9		1			16
2026	Steamer	ROS	1	1	4.08	12	1	0	0	0	0	0		17.0	77	17	9	8	2	9		1			16
2026	ZiPS	ROS	1	1	4.72	4	3							14.0	63	14	8	7	2	7		1			13
2026	ZiPS DC	ROS	1	1	4.72	12	1	0			0	0		17.0	75	16	10	9	2	9		1			16
2026	ATC DC	ROS	0	0	4.91	12	1	0			0	0		16.0	73	16	9	9	2	7		1			15
2026	THE BAT	ROS	1	1	3.46	13	1				0	0		18.0	75	14	7	7	1	8	0	1			18
2026	THE BAT X	ROS	1	1	3.91	13	1	0			0	0		18.0	76	15	8	8	2	8	0	1			18
2026	OOPSY	ROS	1	2	4.32	12	1	1			0	0		16.0	68	15	8	8	2	8		1			15
Total	- - -	MLB	0	1	6.30	4	3	0	0	0	0	0	0	10.0	44	8	7	7	1	6	0	0	1	0	10

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
2021	OAK	CPX	9.00	0.00	1.00	0.00	25.0%	0.0%	25.0%	.000	0.00	.000	100.0%	0	51	2.48
2022	OAK	CPX	14.49	7.24	2.00	0.00	32.4%	16.2%	16.2%	.263	1.90	.429	73.1%	75	77	3.44
2023	OAK	A	9.78	5.74	1.70	0.39	23.2%	13.6%	9.6%	.245	1.61	.328	61.2%	111	96	4.67
2024	BOS	CPX	9.39	2.35	4.00	0.00	22.2%	5.6%	16.7%	.294	1.57	.385	50.0%	95	54	2.52
2024	OAK	A	10.13	0.00	3.00	0.00	33.3%	0.0%	33.3%	.111	0.38	.167	100.0%	0	36	1.82
2024	BOS	A	11.91	2.78	4.29	0.40	33.3%	7.8%	25.6%	.171	0.93	.255	58.3%	49	67	2.56
2024	OAK	A+	8.64	10.80	0.80	0.00	17.8%	22.2%	-4.4%	.314	2.52	.407	38.1%	262	121	5.12
2024	---	MiLB	10.67	4.14	2.58	0.22	27.2%	10.6%	16.7%	.225	1.33	.318	49.5%	98	73	3.02
2025	BOS	A+	13.70	3.22	4.25	0.40	39.5%	9.3%	30.2%	.137	0.83	.229	80.6%	40	56	2.21
2025	BOS	AA	8.50	6.38	1.33	0.43	20.8%	15.6%	5.2%	.213	1.51	.271	72.8%	86	112	4.28
2025	BOS	MiLB	11.17	4.76	2.35	0.41	29.7%	12.6%	17.0%	.176	1.16	.254	75.7%	63	83	3.22
2026	BOS	ST	0.00	0.00	0.00	0.00	0.0%	0.0%	0.0%	.250	1.00	.250	100.0%	0	74	3.65
2026	Steamer	PROJ	7.16	4.53	1.58	1.12	17.8%	11.3%	6.6%	.262	1.53	.301	71.4%			4.81
2026	ZiPS	PROJ	8.27	4.66	1.78	1.16	20.7%	11.7%	9.0%	.244	1.46	.289	70.7%			4.69
2026	OOPSY	PROJ	7.48	4.81	1.56	1.05	19.1%	12.2%	6.8%	.259	1.51	.304	68.2%			4.75
2026	BOS	AA	14.40	2.70	5.33	0.00	41.0%	7.7%	33.3%	.167	0.90	.300	88.9%	19	27	1.27
2026	BOS	AAA	10.84	5.32	2.04	0.59	27.8%	13.6%	14.1%	.200	1.31	.280	69.6%	59	84	4.16
2026	BOS	MiLB	11.48	4.85	2.37	0.49	30.0%	12.7%	17.3%	.194	1.24	.283	72.0%	52	74	3.64
2026	BOS	MLB	9.00	5.40	1.67	0.90	22.7%	13.6%	9.1%	.211	1.40	.259	55.6%	145	101	4.18
2026			8.49	3.43	2.47	1.17	22.1%	8.9%	13.2%	.241	1.30	.287	72.4%			4.30
2026	FGDC	ROS	8.35	4.67	1.79	1.03	21.0%	11.7%	9.2%	.246	1.47	.297	71.6%			4.42
2026	Steamer	ROS	8.32	4.59	1.81	0.92	21.0%	11.6%	9.4%	.246	1.45	.300	73.2%			4.25
2026	ZiPS	ROS	8.38	4.75	1.76	1.15	20.9%	11.9%	9.1%	.246	1.48	.293	70.0%			4.60
2026	ZiPS DC	ROS	8.38	4.75	1.76	1.15	20.9%	11.9%	9.1%	.246	1.48	.293	70.0%			4.60
2026	ATC DC	ROS	8.40	4.13	2.03	1.34	20.5%	10.1%	10.4%	.243	1.44	.281	68.6%			4.71
2026	THE BAT	ROS	9.04	4.32	2.09	0.69	23.8%	11.3%	12.4%	.216	1.28	.275	73.9%			3.66
2026	THE BAT X	ROS	9.11	4.17	2.18	0.93	23.6%	10.8%	12.8%	.225	1.31	.281	72.4%			3.94
2026	OOPSY	ROS	8.41	4.53	1.86	0.92	21.8%	11.7%	10.0%	.246	1.42	.303	70.2%			4.20
Total	- - -	MLB	9.00	5.40	1.67	0.90	22.7%	13.6%	9.1%	.211	1.40	.259	55.6%	145	101	4.18

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	OAK	CPX	9.00	0.00	1.00	0.00	25.0%	0.0%	25.0%	.000	0.00	.000	100.0%	0	51	2.48
2022	OAK	CPX	14.49	7.24	2.00	0.00	32.4%	16.2%	16.2%	.263	1.90	.429	73.1%	75	77	3.44
2023	OAK	A	9.78	5.74	1.70	0.39	23.2%	13.6%	9.6%	.245	1.61	.328	61.2%	111	96	4.67
2024	BOS	CPX	9.39	2.35	4.00	0.00	22.2%	5.6%	16.7%	.294	1.57	.385	50.0%	95	54	2.52
2024	OAK	A	10.13	0.00	3.00	0.00	33.3%	0.0%	33.3%	.111	0.38	.167	100.0%	0	36	1.82
2024	BOS	A	11.91	2.78	4.29	0.40	33.3%	7.8%	25.6%	.171	0.93	.255	58.3%	49	67	2.56
2024	OAK	A+	8.64	10.80	0.80	0.00	17.8%	22.2%	-4.4%	.314	2.52	.407	38.1%	262	121	5.12
2024	---	MiLB	10.67	4.14	2.58	0.22	27.2%	10.6%	16.7%	.225	1.33	.318	49.5%	98	73	3.02
2025	BOS	A+	13.70	3.22	4.25	0.40	39.5%	9.3%	30.2%	.137	0.83	.229	80.6%	40	56	2.21
2025	BOS	AA	8.50	6.38	1.33	0.43	20.8%	15.6%	5.2%	.213	1.51	.271	72.8%	86	112	4.28
2025	BOS	MiLB	11.17	4.76	2.35	0.41	29.7%	12.6%	17.0%	.176	1.16	.254	75.7%	63	83	3.22
2026	BOS	ST	0.00	0.00	0.00	0.00	0.0%	0.0%	0.0%	.250	1.00	.250	100.0%	0	74	3.65
2026	Steamer	PROJ	7.16	4.53	1.58	1.12	17.8%	11.3%	6.6%	.262	1.53	.301	71.4%			4.81
2026	ZiPS	PROJ	8.27	4.66	1.78	1.16	20.7%	11.7%	9.0%	.244	1.46	.289	70.7%			4.69
2026	OOPSY	PROJ	7.48	4.81	1.56	1.05	19.1%	12.2%	6.8%	.259	1.51	.304	68.2%			4.75
2026	BOS	AA	14.40	2.70	5.33	0.00	41.0%	7.7%	33.3%	.167	0.90	.300	88.9%	19	27	1.27
2026	BOS	AAA	10.84	5.32	2.04	0.59	27.8%	13.6%	14.1%	.200	1.31	.280	69.6%	59	84	4.16
2026	BOS	MiLB	11.48	4.85	2.37	0.49	30.0%	12.7%	17.3%	.194	1.24	.283	72.0%	52	74	3.64
2026	BOS	MLB	9.00	5.40	1.67	0.90	22.7%	13.6%	9.1%	.211	1.40	.259	55.6%	145	101	4.18
2026			8.49	3.43	2.47	1.17	22.1%	8.9%	13.2%	.241	1.30	.287	72.4%			4.30
2026	FGDC	ROS	8.35	4.67	1.79	1.03	21.0%	11.7%	9.2%	.246	1.47	.297	71.6%			4.42
2026	Steamer	ROS	8.32	4.59	1.81	0.92	21.0%	11.6%	9.4%	.246	1.45	.300	73.2%			4.25
2026	ZiPS	ROS	8.38	4.75	1.76	1.15	20.9%	11.9%	9.1%	.246	1.48	.293	70.0%			4.60
2026	ZiPS DC	ROS	8.38	4.75	1.76	1.15	20.9%	11.9%	9.1%	.246	1.48	.293	70.0%			4.60
2026	ATC DC	ROS	8.40	4.13	2.03	1.34	20.5%	10.1%	10.4%	.243	1.44	.281	68.6%			4.71
2026	THE BAT	ROS	9.04	4.32	2.09	0.69	23.8%	11.3%	12.4%	.216	1.28	.275	73.9%			3.66
2026	THE BAT X	ROS	9.11	4.17	2.18	0.93	23.6%	10.8%	12.8%	.225	1.31	.281	72.4%			3.94
2026	OOPSY	ROS	8.41	4.53	1.86	0.92	21.8%	11.7%	10.0%	.246	1.42	.303	70.2%			4.20
Total	- - -	MLB	9.00	5.40	1.67	0.90	22.7%	13.6%	9.1%	.211	1.40	.259	55.6%	145	101	4.18

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
2026	BOS	ST	4	91.2	99.6	21.5	0	0.0%	3	75.0%	0.00
2026	BOS	AAA	110	86.4	110.4	10.4	6	5.5%	36	32.7%	2.96	5.52
2026	BOS	MLB	28	91.8	112.4	12.7	1	3.6%	12	42.9%	6.30	3.66
Total	- - -	MLB	28	91.8	112.4	12.7	1	3.6%	12	42.9%	6.30	3.66

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
2026	BOS	ST	4	91.2	99.6	21.5	0	0.0%	3	75.0%	0.00
2026	BOS	AAA	110	86.4	110.4	10.4	6	5.5%	36	32.7%	2.96	5.52
2026	BOS	MLB	28	91.8	112.4	12.7	1	3.6%	12	42.9%	6.30	3.66
Total	- - -	MLB	28	91.8	112.4	12.7	1	3.6%	12	42.9%	6.30	3.66

Eduardo Rivera

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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