Batting

Pitching

Mumba Rivera

Free Agent (AA)

P

Age: 44

Bats/Throws: R/R

6'5" / 205

DOB: 12/10/1980

(44 years, 4 months, 22 days)

P

Stats

Minor LeaguesSpring Training

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	divider	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	divider	vFA vFA - Fourseam Fastball velocity (Pitch Info)	divider	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
2006	SEA	A+	25	5	4	0	40	0	77.1		7.91	4.42	1.05	.277	66.7%						4.19		5.24
2007	SEA	AA	26	4	7	6	42	0	56.1		11.34	6.07	2.08	.295	71.2%						5.27		5.96	4.32
2007	SEA	ST	26	0	0	0	2	0	2.2		10.13	10.13	3.38	.375	71.4%						10.13		9.61	5.90
2008	SEA	AA	27	5	1	11	28	0	32.1		9.74	3.06	0.28	.299	72.5%	40.0%	2.9%				2.51		2.71	3.39
2008	SEA	AAA	27	0	2	0	13	0	19.0		8.05	6.16	1.42	.305	61.7%	29.5%	10.7%				7.11		5.98	5.97
2008	SEA	MiLB	27	5	3	11	41	0	51.1		9.12	4.21	0.70	.301	67.7%	35.6%	6.5%				4.21		3.92	4.34
2009	SEA	AA	28	6	6	1	42	0	64.0		8.72	6.05	0.70	.303	70.9%	31.3%	6.6%				4.50		4.56	4.56
2010	SEA	AA	29	0	3	4	28	0	36.2		8.59	4.91	0.98	.257	55.6%	41.2%	8.3%				5.65		4.92	4.65
2010	SEA	AAA	29	0	1	0	11	0	14.2		4.91	2.45	0.61	.234	84.3%	30.4%	5.0%				2.45		4.61	5.46
2010	SEA	MiLB	29	0	4	4	39	0	51.1		7.54	4.21	0.88	.250	62.7%	37.8%	7.4%				4.73		4.83	4.88

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	divider	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	divider	vFA vFA - Fourseam Fastball velocity (Pitch Info)	divider	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
2006	SEA	A+	25	5	4	0	40	0	77.1		7.91	4.42	1.05	.277	66.7%						4.19		5.24
2007	SEA	AA	26	4	7	6	42	0	56.1		11.34	6.07	2.08	.295	71.2%						5.27		5.96	4.32
2007	SEA	ST	26	0	0	0	2	0	2.2		10.13	10.13	3.38	.375	71.4%						10.13		9.61	5.90
2008	SEA	AA	27	5	1	11	28	0	32.1		9.74	3.06	0.28	.299	72.5%	40.0%	2.9%				2.51		2.71	3.39
2008	SEA	AAA	27	0	2	0	13	0	19.0		8.05	6.16	1.42	.305	61.7%	29.5%	10.7%				7.11		5.98	5.97
2008	SEA	MiLB	27	5	3	11	41	0	51.1		9.12	4.21	0.70	.301	67.7%	35.6%	6.5%				4.21		3.92	4.34
2009	SEA	AA	28	6	6	1	42	0	64.0		8.72	6.05	0.70	.303	70.9%	31.3%	6.6%				4.50		4.56	4.56
2010	SEA	AA	29	0	3	4	28	0	36.2		8.59	4.91	0.98	.257	55.6%	41.2%	8.3%				5.65		4.92	4.65
2010	SEA	AAA	29	0	1	0	11	0	14.2		4.91	2.45	0.61	.234	84.3%	30.4%	5.0%				2.45		4.61	5.46
2010	SEA	MiLB	29	0	4	4	39	0	51.1		7.54	4.21	0.88	.250	62.7%	37.8%	7.4%				4.73		4.83	4.88

Minor LeaguesSpring Training

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
2006	SEA	A+	5	4	4.19	40	0		0	0	0	6	4	77.1	335	68	46	36	9	38	1	7	2	0	68
2007	SEA	AA	4	7	5.27	42	0		0	0	6	5	10	56.1	263	54	40	33	13	38	1	2	12	0	71
2007	SEA	ST	0	0	10.13	2	0		0	0	0	1	0	2.2	15	4	3	3	1	3	0	0	1	0	3
2008	SEA	AA	5	1	2.51	28	0		0	0	11	0	1	32.1	136	27	12	9	1	11	1	2	1	0	35
2008	SEA	AAA	0	2	7.11	13	0		0	0	0	2	2	19.0	93	21	16	15	3	13	0	1	2	0	17
2008	SEA	MiLB	5	3	4.21	41	0		0	0	11	2	3	51.1	229	48	28	24	4	24	1	3	3	0	52
2009	SEA	AA	6	6	4.50	42	0		0	0	1	3	2	64.0	296	59	37	32	5	43	2	8	9	1	62
2010	SEA	AA	0	3	5.65	28	0		0	0	4	2	3	36.2	169	31	28	23	4	20	1	5	6	0	35
2010	SEA	AAA	0	1	2.45	11	0		0	0	0	0	0	14.2	62	12	4	4	1	4	1	2	2	0	8
2010	SEA	MiLB	0	4	4.73	39	0		0	0	4	2	3	51.1	231	43	32	27	5	24	2	7	8	0	43

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
2006	SEA	A+	5	4	4.19	40	0		0	0	0	6	4	77.1	335	68	46	36	9	38	1	7	2	0	68
2007	SEA	AA	4	7	5.27	42	0		0	0	6	5	10	56.1	263	54	40	33	13	38	1	2	12	0	71
2007	SEA	ST	0	0	10.13	2	0		0	0	0	1	0	2.2	15	4	3	3	1	3	0	0	1	0	3
2008	SEA	AA	5	1	2.51	28	0		0	0	11	0	1	32.1	136	27	12	9	1	11	1	2	1	0	35
2008	SEA	AAA	0	2	7.11	13	0		0	0	0	2	2	19.0	93	21	16	15	3	13	0	1	2	0	17
2008	SEA	MiLB	5	3	4.21	41	0		0	0	11	2	3	51.1	229	48	28	24	4	24	1	3	3	0	52
2009	SEA	AA	6	6	4.50	42	0		0	0	1	3	2	64.0	296	59	37	32	5	43	2	8	9	1	62
2010	SEA	AA	0	3	5.65	28	0		0	0	4	2	3	36.2	169	31	28	23	4	20	1	5	6	0	35
2010	SEA	AAA	0	1	2.45	11	0		0	0	0	0	0	14.2	62	12	4	4	1	4	1	2	2	0	8
2010	SEA	MiLB	0	4	4.73	39	0		0	0	4	2	3	51.1	231	43	32	27	5	24	2	7	8	0	43

Minor LeaguesSpring TrainingAverages

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)	divider	K% K% - Strikeout Percentage (SO/TBF)	BB% BB% - Walk Percentage (BB/TBF)	K-BB% K-BB% - The difference between strikeout percentage and walk percentage	divider	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	divider	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	divider	FIP FIP - Fielder Independent Pitching on an ERA scale
2006	SEA	A+	7.91	4.42	1.79	1.05		20.3%	11.3%	9.0%		.234	1.37	.277	66.7%		95	117		5.24
2007	SEA	AA	11.34	6.07	1.87	2.08		27.0%	14.4%	12.5%		.242	1.63	.295	71.2%		126	146		5.96
2007	SEA	ST	10.13	10.13	1.00	3.38		20.0%	20.0%	0.0%		.333	2.63	.375	71.4%		198	196		9.61
2008	SEA	AA	9.74	3.06	3.18	0.28		25.7%	8.1%	17.6%		.220	1.18	.299	72.5%		58	64		2.71
2008	SEA	AAA	8.05	6.16	1.31	1.42		18.3%	14.0%	4.3%		.266	1.79	.305	61.7%		155	128		5.98
2008	SEA	MiLB	9.12	4.21	2.17	0.70		22.7%	10.5%	12.2%		.238	1.40	.301	67.7%		94	88		3.92
2009	SEA	AA	8.72	6.05	1.44	0.70		20.9%	14.5%	6.4%		.241	1.59	.303	70.9%		114	119		4.56
2010	SEA	AA	8.59	4.91	1.75	0.98		20.7%	11.8%	8.9%		.215	1.39	.257	55.6%		138	124		4.92
2010	SEA	AAA	4.91	2.45	2.00	0.61		12.9%	6.5%	6.5%		.214	1.09	.234	84.3%		55	99		4.61
2010	SEA	MiLB	7.54	4.21	1.79	0.88		18.6%	10.4%	8.2%		.215	1.31	.250	62.7%		114	117		4.83

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)	divider	K% K% - Strikeout Percentage (SO/TBF)	BB% BB% - Walk Percentage (BB/TBF)	K-BB% K-BB% - The difference between strikeout percentage and walk percentage	divider	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	divider	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	divider	FIP FIP - Fielder Independent Pitching on an ERA scale
2006	SEA	A+	7.91	4.42	1.79	1.05		20.3%	11.3%	9.0%		.234	1.37	.277	66.7%		95	117		5.24
2007	SEA	AA	11.34	6.07	1.87	2.08		27.0%	14.4%	12.5%		.242	1.63	.295	71.2%		126	146		5.96
2007	SEA	ST	10.13	10.13	1.00	3.38		20.0%	20.0%	0.0%		.333	2.63	.375	71.4%		198	196		9.61
2008	SEA	AA	9.74	3.06	3.18	0.28		25.7%	8.1%	17.6%		.220	1.18	.299	72.5%		58	64		2.71
2008	SEA	AAA	8.05	6.16	1.31	1.42		18.3%	14.0%	4.3%		.266	1.79	.305	61.7%		155	128		5.98
2008	SEA	MiLB	9.12	4.21	2.17	0.70		22.7%	10.5%	12.2%		.238	1.40	.301	67.7%		94	88		3.92
2009	SEA	AA	8.72	6.05	1.44	0.70		20.9%	14.5%	6.4%		.241	1.59	.303	70.9%		114	119		4.56
2010	SEA	AA	8.59	4.91	1.75	0.98		20.7%	11.8%	8.9%		.215	1.39	.257	55.6%		138	124		4.92
2010	SEA	AAA	4.91	2.45	2.00	0.61		12.9%	6.5%	6.5%		.214	1.09	.234	84.3%		55	99		4.61
2010	SEA	MiLB	7.54	4.21	1.79	0.88		18.6%	10.4%	8.2%		.215	1.31	.250	62.7%		114	117		4.83