Jerry Koosman

Age: 81

Bats/Throws: R/L

6'2" / 208

DOB: 12/23/1942

(81 years, 8 months, 20 days)

Stats

Partial SeasonsPostseasonRegular MLB Seasons

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	ERA ERA - Earned Run Average ((ER*9)/IP)	FIP FIP - Fielder Independent Pitching on an ERA scale	WAR WAR - Wins Above Replacement
1967	NYM Mets	MLB	24	0	2	0	9	3	22.1	4.43	7.66	1.21	.264	65.2%	6.04	5.85	-0.5
1968	NYM Mets	MLB	25	19	12	0	35	34	263.2	6.08	2.36	0.55	.260	82.0%	2.08	2.70	3.6
1969	NYM Mets	MLB	26	17	9	0	32	32	241.0	6.72	2.54	0.52	.250	80.6%	2.28	2.67	5.4
1969	NYM Mets	MLB	26	2	0	0	3	3	22.1	5.64	3.22	1.21	.175	67.4%	4.03	4.08
1970	NYM Mets	MLB	27	12	7	0	30	29	212.0	5.01	3.01	0.93	.249	75.7%	3.14	3.91	2.3
1971	NYM Mets	MLB	28	6	11	0	26	24	165.2	5.22	2.77	0.65	.277	74.8%	3.04	3.18	2.2
1972	NYM Mets	MLB	29	11	12	1	34	24	163.0	8.12	2.87	0.77	.298	68.3%	4.14	2.78	2.9
1973	NYM Mets	MLB	30	14	15	0	35	35	263.0	5.34	2.60	0.62	.264	76.5%	2.84	3.18	4.4
1973	NYM Mets	MLB	30	2	0	0	3	3	17.2	8.66	3.57	0.51	.314	84.1%	2.55	2.57
1974	NYM Mets	MLB	31	15	11	0	35	35	265.0	6.38	2.89	0.54	.294	72.3%	3.36	2.99	5.1
1975	NYM Mets	MLB	32	14	13	2	36	34	239.2	6.50	3.68	0.71	.297	74.3%	3.42	3.45	3.1
1976	NYM Mets	MLB	33	21	10	0	34	32	247.1	7.28	2.40	0.69	.263	77.8%	2.69	2.83	4.9
1977	NYM Mets	MLB	34	8	20	0	32	32	226.2	7.62	3.22	0.68	.276	69.5%	3.49	3.14	4.6
1978	NYM Mets	MLB	35	3	15	2	38	32	235.1	6.12	3.21	0.65	.285	70.2%	3.75	3.34	3.2
1979	MIN Twins	MLB	36	20	13	0	37	36	263.2	5.36	2.83	0.65	.297	75.1%	3.38	3.46	5.5
1980	MIN Twins	MLB	37	16	13	2	38	34	243.1	5.51	2.55	0.89	.294	70.8%	4.03	3.72	3.8
1981	2 Tms	MLB	38	4	13	5	27	16	121.1	5.64	3.04	0.74	.295	70.4%	4.01	3.43	2.0
1981	MIN Twins	MLB	38	3	9	5	19	13	94.1	5.25	3.24	0.76	.293	68.7%	4.20	3.62	1.4
1981	CHW White Sox	MLB	38	1	4	0	8	3	27.0	7.00	2.33	0.67	.301	76.9%	3.33	2.79	0.6
1982	CHW White Sox	MLB	39	11	7	3	42	19	173.1	4.57	1.97	0.47	.314	69.1%	3.84	3.07	3.7
1983	CHW White Sox	MLB	40	11	7	2	37	24	169.2	4.77	2.81	1.01	.279	66.7%	4.77	4.19	1.5
1983	CHW White Sox	MLB	40	0	0	0	1	0	0.1	0.00	54.00	0.00	.500	0.0%	54.00	20.76
1984	PHI Phillies	MLB	41	14	15	0	36	34	224.0	5.50	2.41	0.32	.302	70.5%	3.25	2.85	4.7
1985	PHI Phillies	MLB	42	6	4	0	19	18	99.1	5.44	3.08	1.27	.289	70.7%	4.62	4.43	0.3
Total	- - -	MLB		222	209	17	612	527	3839.1	5.99	2.81	0.68	.282	73.3%	3.36	3.26	62.6
Postseason	- - -	MLB		4	0	0	7	6	40.1	6.92	3.79	0.89	.241	71.4%	3.79	3.55

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	ERA ERA - Earned Run Average ((ER*9)/IP)	FIP FIP - Fielder Independent Pitching on an ERA scale	WAR WAR - Wins Above Replacement
1967	NYM Mets	MLB	24	0	2	0	9	3	22.1	4.43	7.66	1.21	.264	65.2%	6.04	5.85	-0.5
1968	NYM Mets	MLB	25	19	12	0	35	34	263.2	6.08	2.36	0.55	.260	82.0%	2.08	2.70	3.6
1969	NYM Mets	MLB	26	17	9	0	32	32	241.0	6.72	2.54	0.52	.250	80.6%	2.28	2.67	5.4
1969	NYM Mets	MLB	26	2	0	0	3	3	22.1	5.64	3.22	1.21	.175	67.4%	4.03	4.08
1970	NYM Mets	MLB	27	12	7	0	30	29	212.0	5.01	3.01	0.93	.249	75.7%	3.14	3.91	2.3
1971	NYM Mets	MLB	28	6	11	0	26	24	165.2	5.22	2.77	0.65	.277	74.8%	3.04	3.18	2.2
1972	NYM Mets	MLB	29	11	12	1	34	24	163.0	8.12	2.87	0.77	.298	68.3%	4.14	2.78	2.9
1973	NYM Mets	MLB	30	14	15	0	35	35	263.0	5.34	2.60	0.62	.264	76.5%	2.84	3.18	4.4
1973	NYM Mets	MLB	30	2	0	0	3	3	17.2	8.66	3.57	0.51	.314	84.1%	2.55	2.57
1974	NYM Mets	MLB	31	15	11	0	35	35	265.0	6.38	2.89	0.54	.294	72.3%	3.36	2.99	5.1
1975	NYM Mets	MLB	32	14	13	2	36	34	239.2	6.50	3.68	0.71	.297	74.3%	3.42	3.45	3.1
1976	NYM Mets	MLB	33	21	10	0	34	32	247.1	7.28	2.40	0.69	.263	77.8%	2.69	2.83	4.9
1977	NYM Mets	MLB	34	8	20	0	32	32	226.2	7.62	3.22	0.68	.276	69.5%	3.49	3.14	4.6
1978	NYM Mets	MLB	35	3	15	2	38	32	235.1	6.12	3.21	0.65	.285	70.2%	3.75	3.34	3.2
1979	MIN Twins	MLB	36	20	13	0	37	36	263.2	5.36	2.83	0.65	.297	75.1%	3.38	3.46	5.5
1980	MIN Twins	MLB	37	16	13	2	38	34	243.1	5.51	2.55	0.89	.294	70.8%	4.03	3.72	3.8
1981	2 Tms	MLB	38	4	13	5	27	16	121.1	5.64	3.04	0.74	.295	70.4%	4.01	3.43	2.0
1981	MIN Twins	MLB	38	3	9	5	19	13	94.1	5.25	3.24	0.76	.293	68.7%	4.20	3.62	1.4
1981	CHW White Sox	MLB	38	1	4	0	8	3	27.0	7.00	2.33	0.67	.301	76.9%	3.33	2.79	0.6
1982	CHW White Sox	MLB	39	11	7	3	42	19	173.1	4.57	1.97	0.47	.314	69.1%	3.84	3.07	3.7
1983	CHW White Sox	MLB	40	11	7	2	37	24	169.2	4.77	2.81	1.01	.279	66.7%	4.77	4.19	1.5
1983	CHW White Sox	MLB	40	0	0	0	1	0	0.1	0.00	54.00	0.00	.500	0.0%	54.00	20.76
1984	PHI Phillies	MLB	41	14	15	0	36	34	224.0	5.50	2.41	0.32	.302	70.5%	3.25	2.85	4.7
1985	PHI Phillies	MLB	42	6	4	0	19	18	99.1	5.44	3.08	1.27	.289	70.7%	4.62	4.43	0.3
Total	- - -	MLB		222	209	17	612	527	3839.1	5.99	2.81	0.68	.282	73.3%	3.36	3.26	62.6
Postseason	- - -	MLB		4	0	0	7	6	40.1	6.92	3.79	0.89	.241	71.4%	3.79	3.55

Partial SeasonsPostseasonRegular MLB Seasons

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	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
1967	NYM Mets	MLB	0	2	6.04	9	3		0	0	0	22.1	105	22	17	15	3	19	4	0	0	1	11
1968	NYM Mets	MLB	19	12	2.08	35	34		17	7	0	263.2	1058	221	72	61	16	69	7	8	8	0	178
1969	NYM Mets	MLB	17	9	2.28	32	32		16	6	0	241.0	957	187	66	61	14	68	11	4	7	2	180
1969	NYM Mets	MLB	2	0	4.03	3	3	2	1	0	0	22.1	88	14	10	10	3	8	0	0	0	0	14
1970	NYM Mets	MLB	12	7	3.14	30	29		5	1	0	212.0	884	189	87	74	22	71	14	2	7	3	118
1971	NYM Mets	MLB	6	11	3.04	26	24		4	0	0	165.2	694	160	66	56	12	51	4	1	7	0	96
1972	NYM Mets	MLB	11	12	4.14	34	24		4	1	1	163.0	692	155	81	75	14	52	7	6	9	0	147
1973	NYM Mets	MLB	14	15	2.84	35	35		12	3	0	263.0	1071	234	93	83	18	76	6	4	3	0	156
1973	NYM Mets	MLB	2	0	2.55	3	3	2	1	0	0	17.2	76	17	5	5	1	7	1	0	0	0	17
1974	NYM Mets	MLB	15	11	3.36	35	35		13	0	0	265.0	1118	258	113	99	16	85	7	7	8	1	188
1975	NYM Mets	MLB	14	13	3.42	36	34		11	4	2	239.2	1018	234	106	91	19	98	6	4	7	7	173
1976	NYM Mets	MLB	21	10	2.69	34	32		17	3	0	247.1	994	205	81	74	19	66	7	1	3	1	200
1977	NYM Mets	MLB	8	20	3.49	32	32		6	1	0	226.2	940	195	102	88	17	81	8	4	2	4	192
1978	NYM Mets	MLB	3	15	3.75	38	32		3	0	2	235.1	986	221	110	98	17	84	11	8	5	1	160
1979	MIN Twins	MLB	20	13	3.38	37	36		10	2	0	263.2	1101	268	108	99	19	83	4	3	2	1	157
1980	MIN Twins	MLB	16	13	4.03	38	34		8	0	2	243.1	1022	252	119	109	24	69	5	5	2	1	149
1981	2 Tms	MLB	4	13	4.01	27	16		3	1	5	121.1	517	125	59	54	10	41	7	0	2	1	76
1981	MIN Twins	MLB	3	9	4.20	19	13		2	1	5	94.1	404	98	49	44	8	34	7	0	1	1	55
1981	CHW White Sox	MLB	1	4	3.33	8	3		1	0	0	27.0	113	27	10	10	2	7	0	0	1	0	21
1982	CHW White Sox	MLB	11	7	3.84	42	19		3	1	3	173.1	726	194	81	74	9	38	3	2	4	2	88
1983	CHW White Sox	MLB	11	7	4.77	37	24		2	1	2	169.2	730	176	96	90	19	53	2	6	5	0	90
1983	CHW White Sox	MLB	0	0	54.00	1	0	0	0	0	0	0.1	4	1	3	2	0	2	1	0	0	0	0
1984	PHI Phillies	MLB	14	15	3.25	36	34		3	1	0	224.0	950	232	95	81	8	60	5	3	6	2	137
1985	PHI Phillies	MLB	6	4	4.62	19	18		3	1	0	99.1	433	107	56	51	14	34	3	3	2	2	60
Total	- - -	MLB	222	209	3.36	612	527		140	33	17	3839.1	15996	3635	1608	1433	290	1198	121	71	89	29	2556
Postseason	- - -	MLB	4	0	3.79	7	6	4	2	0	0	40.1	168	32	18	17	4	17	2	0	0	0	31

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	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
1967	NYM Mets	MLB	0	2	6.04	9	3		0	0	0	22.1	105	22	17	15	3	19	4	0	0	1	11
1968	NYM Mets	MLB	19	12	2.08	35	34		17	7	0	263.2	1058	221	72	61	16	69	7	8	8	0	178
1969	NYM Mets	MLB	17	9	2.28	32	32		16	6	0	241.0	957	187	66	61	14	68	11	4	7	2	180
1969	NYM Mets	MLB	2	0	4.03	3	3	2	1	0	0	22.1	88	14	10	10	3	8	0	0	0	0	14
1970	NYM Mets	MLB	12	7	3.14	30	29		5	1	0	212.0	884	189	87	74	22	71	14	2	7	3	118
1971	NYM Mets	MLB	6	11	3.04	26	24		4	0	0	165.2	694	160	66	56	12	51	4	1	7	0	96
1972	NYM Mets	MLB	11	12	4.14	34	24		4	1	1	163.0	692	155	81	75	14	52	7	6	9	0	147
1973	NYM Mets	MLB	14	15	2.84	35	35		12	3	0	263.0	1071	234	93	83	18	76	6	4	3	0	156
1973	NYM Mets	MLB	2	0	2.55	3	3	2	1	0	0	17.2	76	17	5	5	1	7	1	0	0	0	17
1974	NYM Mets	MLB	15	11	3.36	35	35		13	0	0	265.0	1118	258	113	99	16	85	7	7	8	1	188
1975	NYM Mets	MLB	14	13	3.42	36	34		11	4	2	239.2	1018	234	106	91	19	98	6	4	7	7	173
1976	NYM Mets	MLB	21	10	2.69	34	32		17	3	0	247.1	994	205	81	74	19	66	7	1	3	1	200
1977	NYM Mets	MLB	8	20	3.49	32	32		6	1	0	226.2	940	195	102	88	17	81	8	4	2	4	192
1978	NYM Mets	MLB	3	15	3.75	38	32		3	0	2	235.1	986	221	110	98	17	84	11	8	5	1	160
1979	MIN Twins	MLB	20	13	3.38	37	36		10	2	0	263.2	1101	268	108	99	19	83	4	3	2	1	157
1980	MIN Twins	MLB	16	13	4.03	38	34		8	0	2	243.1	1022	252	119	109	24	69	5	5	2	1	149
1981	2 Tms	MLB	4	13	4.01	27	16		3	1	5	121.1	517	125	59	54	10	41	7	0	2	1	76
1981	MIN Twins	MLB	3	9	4.20	19	13		2	1	5	94.1	404	98	49	44	8	34	7	0	1	1	55
1981	CHW White Sox	MLB	1	4	3.33	8	3		1	0	0	27.0	113	27	10	10	2	7	0	0	1	0	21
1982	CHW White Sox	MLB	11	7	3.84	42	19		3	1	3	173.1	726	194	81	74	9	38	3	2	4	2	88
1983	CHW White Sox	MLB	11	7	4.77	37	24		2	1	2	169.2	730	176	96	90	19	53	2	6	5	0	90
1983	CHW White Sox	MLB	0	0	54.00	1	0	0	0	0	0	0.1	4	1	3	2	0	2	1	0	0	0	0
1984	PHI Phillies	MLB	14	15	3.25	36	34		3	1	0	224.0	950	232	95	81	8	60	5	3	6	2	137
1985	PHI Phillies	MLB	6	4	4.62	19	18		3	1	0	99.1	433	107	56	51	14	34	3	3	2	2	60
Total	- - -	MLB	222	209	3.36	612	527		140	33	17	3839.1	15996	3635	1608	1433	290	1198	121	71	89	29	2556
Postseason	- - -	MLB	4	0	3.79	7	6	4	2	0	0	40.1	168	32	18	17	4	17	2	0	0	0	31

Partial SeasonsPostseasonRegular MLB SeasonsAverages

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
1967	NYM Mets	MLB	4.43	7.66	0.58	1.21	10.5%	18.1%	-7.6%	.256	1.84	.264	65.2%	180	178	5.85
1967	Average		5.99	2.98	2.01	0.71	15.9%	7.9%	8.0%	.237	1.24	.269	73.3%			3.96
1968	NYM Mets	MLB	6.08	2.36	2.58	0.55	16.8%	6.5%	10.3%	.225	1.10	.260	82.0%	70	96	2.70
1968	Average		5.89	2.82	2.09	0.61	15.8%	7.6%	8.3%	.232	1.19	.264	74.7%			3.80
1969	NYM Mets	MLB	6.72	2.54	2.65	0.52	18.8%	7.1%	11.7%	.211	1.06	.250	80.6%	64	79	2.67
1969	NYM Mets	MLB	5.64	3.22	1.75	1.21	15.9%	9.1%	6.8%	.175	0.99	.175	67.4%	113	118	4.08
1969	Average		5.80	3.46	1.67	0.80	15.2%	9.1%	6.1%	.243	1.32	.272	73.0%			4.30
1970	NYM Mets	MLB	5.01	3.01	1.66	0.93	13.3%	8.0%	5.3%	.233	1.23	.249	75.7%	79	103	3.91
1970	Average		5.78	3.54	1.63	0.89	15.0%	9.2%	5.8%	.249	1.36	.276	72.1%			4.45
1971	NYM Mets	MLB	5.22	2.77	1.88	0.65	13.8%	7.3%	6.5%	.249	1.27	.277	74.8%	89	96	3.18
1971	Average		5.42	3.25	1.67	0.74	14.3%	8.5%	5.7%	.244	1.30	.271	73.6%			4.22
1972	NYM Mets	MLB	8.12	2.87	2.83	0.77	21.2%	7.5%	13.7%	.244	1.27	.298	68.3%	122	85	2.78
1972	Average		5.57	3.16	1.77	0.68	14.8%	8.4%	6.4%	.239	1.26	.268	74.2%			4.07
1973	NYM Mets	MLB	5.34	2.60	2.05	0.62	14.6%	7.1%	7.5%	.236	1.18	.264	76.5%	80	89	3.18
1973	NYM Mets	MLB	8.66	3.57	2.43	0.51	22.4%	9.2%	13.2%	.246	1.36	.314	84.1%	72	72	2.57
1973	Average		5.25	3.38	1.55	0.80	13.7%	8.8%	4.9%	.252	1.35	.277	72.4%			4.38
1974	NYM Mets	MLB	6.38	2.89	2.21	0.54	16.8%	7.6%	9.2%	.251	1.29	.294	72.3%	97	84	2.99
1974	Average		5.02	3.34	1.50	0.68	13.1%	8.7%	4.4%	.251	1.34	.277	72.0%			4.25
1975	NYM Mets	MLB	6.50	3.68	1.77	0.71	17.0%	9.6%	7.4%	.255	1.39	.297	74.3%	98	98	3.45
1975	Average		5.00	3.47	1.44	0.70	13.0%	9.0%	4.0%	.252	1.36	.277	71.7%			4.32
1976	NYM Mets	MLB	7.28	2.40	3.03	0.69	20.1%	6.6%	13.5%	.221	1.10	.263	77.8%	80	83	2.83
1976	Average		4.83	3.19	1.51	0.58	12.7%	8.4%	4.3%	.250	1.32	.276	71.6%			4.08
1977	NYM Mets	MLB	7.62	3.22	2.37	0.68	20.4%	8.6%	11.8%	.228	1.22	.276	69.5%	93	82	3.14
1977	Average		5.18	3.28	1.58	0.87	13.4%	8.5%	4.9%	.259	1.37	.283	71.1%			4.46
1978	NYM Mets	MLB	6.12	3.21	1.90	0.65	16.2%	8.5%	7.7%	.247	1.30	.285	70.2%	109	95	3.34
1978	Average		4.81	3.26	1.48	0.71	12.6%	8.5%	4.1%	.252	1.34	.275	71.9%			4.30
1979	MIN Twins	MLB	5.36	2.83	1.89	0.65	14.3%	7.5%	6.7%	.264	1.33	.297	75.1%	77	82	3.46
1979	Average		4.81	3.27	1.47	0.82	12.5%	8.5%	4.0%	.260	1.37	.281	70.7%			4.47
1980	MIN Twins	MLB	5.51	2.55	2.16	0.89	14.6%	6.8%	7.8%	.266	1.32	.294	70.8%	97	92	3.72
1980	Average		4.80	3.14	1.53	0.73	12.5%	8.2%	4.4%	.259	1.36	.283	71.2%			4.29
1981	2 Tms	MLB	5.64	3.04	1.85	0.74	14.7%	7.9%	6.8%	.263	1.37	.295	70.4%	107	92	3.43
1981	MIN Twins	MLB	5.25	3.24	1.62	0.76	13.6%	8.4%	5.2%	.265	1.40	.293	68.7%	111	97	3.62
1981	CHW White Sox	MLB	7.00	2.33	3.00	0.67	18.6%	6.2%	12.4%	.255	1.26	.301	76.9%	91	75	2.79
1981	Average		4.75	3.18	1.49	0.64	12.5%	8.4%	4.1%	.250	1.32	.274	72.1%			4.18
1982	CHW White Sox	MLB	4.57	1.97	2.32	0.47	12.1%	5.2%	6.9%	.283	1.34	.314	69.1%	93	75	3.07
1982	Average		5.04	3.16	1.60	0.80	13.2%	8.3%	4.9%	.256	1.35	.280	71.5%			4.35
1983	CHW White Sox	MLB	4.77	2.81	1.70	1.01	12.3%	7.3%	5.1%	.262	1.35	.279	66.7%	115	104	4.19
1983	CHW White Sox	MLB	0.00	54.00	0.00	0.00	0.0%	50.0%	-50.0%	.500	9.00	.500	0.0%	999	506	20.76
1983	Average		5.18	3.22	1.61	0.79	13.5%	8.4%	5.1%	.256	1.35	.281	71.2%			4.32
1984	PHI Phillies	MLB	5.50	2.41	2.28	0.32	14.4%	6.3%	8.1%	.262	1.30	.302	70.5%	90	81	2.85
1984	Average		5.37	3.18	1.69	0.78	14.0%	8.3%	5.7%	.255	1.34	.282	71.5%			4.24
1985	PHI Phillies	MLB	5.44	3.08	1.76	1.27	13.9%	7.9%	6.0%	.270	1.42	.289	70.7%	125	122	4.43
1985	Average		5.37	3.31	1.62	0.86	14.0%	8.6%	5.4%	.252	1.34	.277	71.5%			4.41
Total	- - -	MLB	5.99	2.81	2.13	0.68	16.0%	7.5%	8.5%	.247	1.26	.282	73.3%	91	90	3.26
Postseason	- - -	MLB	6.92	3.79	1.82	0.89	18.5%	10.1%	8.3%	.212	1.21	.241	71.4%	105	101	3.55

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
1967	NYM Mets	MLB	4.43	7.66	0.58	1.21	10.5%	18.1%	-7.6%	.256	1.84	.264	65.2%	180	178	5.85
1967	Average		5.99	2.98	2.01	0.71	15.9%	7.9%	8.0%	.237	1.24	.269	73.3%			3.96
1968	NYM Mets	MLB	6.08	2.36	2.58	0.55	16.8%	6.5%	10.3%	.225	1.10	.260	82.0%	70	96	2.70
1968	Average		5.89	2.82	2.09	0.61	15.8%	7.6%	8.3%	.232	1.19	.264	74.7%			3.80
1969	NYM Mets	MLB	6.72	2.54	2.65	0.52	18.8%	7.1%	11.7%	.211	1.06	.250	80.6%	64	79	2.67
1969	NYM Mets	MLB	5.64	3.22	1.75	1.21	15.9%	9.1%	6.8%	.175	0.99	.175	67.4%	113	118	4.08
1969	Average		5.80	3.46	1.67	0.80	15.2%	9.1%	6.1%	.243	1.32	.272	73.0%			4.30
1970	NYM Mets	MLB	5.01	3.01	1.66	0.93	13.3%	8.0%	5.3%	.233	1.23	.249	75.7%	79	103	3.91
1970	Average		5.78	3.54	1.63	0.89	15.0%	9.2%	5.8%	.249	1.36	.276	72.1%			4.45
1971	NYM Mets	MLB	5.22	2.77	1.88	0.65	13.8%	7.3%	6.5%	.249	1.27	.277	74.8%	89	96	3.18
1971	Average		5.42	3.25	1.67	0.74	14.3%	8.5%	5.7%	.244	1.30	.271	73.6%			4.22
1972	NYM Mets	MLB	8.12	2.87	2.83	0.77	21.2%	7.5%	13.7%	.244	1.27	.298	68.3%	122	85	2.78
1972	Average		5.57	3.16	1.77	0.68	14.8%	8.4%	6.4%	.239	1.26	.268	74.2%			4.07
1973	NYM Mets	MLB	5.34	2.60	2.05	0.62	14.6%	7.1%	7.5%	.236	1.18	.264	76.5%	80	89	3.18
1973	NYM Mets	MLB	8.66	3.57	2.43	0.51	22.4%	9.2%	13.2%	.246	1.36	.314	84.1%	72	72	2.57
1973	Average		5.25	3.38	1.55	0.80	13.7%	8.8%	4.9%	.252	1.35	.277	72.4%			4.38
1974	NYM Mets	MLB	6.38	2.89	2.21	0.54	16.8%	7.6%	9.2%	.251	1.29	.294	72.3%	97	84	2.99
1974	Average		5.02	3.34	1.50	0.68	13.1%	8.7%	4.4%	.251	1.34	.277	72.0%			4.25
1975	NYM Mets	MLB	6.50	3.68	1.77	0.71	17.0%	9.6%	7.4%	.255	1.39	.297	74.3%	98	98	3.45
1975	Average		5.00	3.47	1.44	0.70	13.0%	9.0%	4.0%	.252	1.36	.277	71.7%			4.32
1976	NYM Mets	MLB	7.28	2.40	3.03	0.69	20.1%	6.6%	13.5%	.221	1.10	.263	77.8%	80	83	2.83
1976	Average		4.83	3.19	1.51	0.58	12.7%	8.4%	4.3%	.250	1.32	.276	71.6%			4.08
1977	NYM Mets	MLB	7.62	3.22	2.37	0.68	20.4%	8.6%	11.8%	.228	1.22	.276	69.5%	93	82	3.14
1977	Average		5.18	3.28	1.58	0.87	13.4%	8.5%	4.9%	.259	1.37	.283	71.1%			4.46
1978	NYM Mets	MLB	6.12	3.21	1.90	0.65	16.2%	8.5%	7.7%	.247	1.30	.285	70.2%	109	95	3.34
1978	Average		4.81	3.26	1.48	0.71	12.6%	8.5%	4.1%	.252	1.34	.275	71.9%			4.30
1979	MIN Twins	MLB	5.36	2.83	1.89	0.65	14.3%	7.5%	6.7%	.264	1.33	.297	75.1%	77	82	3.46
1979	Average		4.81	3.27	1.47	0.82	12.5%	8.5%	4.0%	.260	1.37	.281	70.7%			4.47
1980	MIN Twins	MLB	5.51	2.55	2.16	0.89	14.6%	6.8%	7.8%	.266	1.32	.294	70.8%	97	92	3.72
1980	Average		4.80	3.14	1.53	0.73	12.5%	8.2%	4.4%	.259	1.36	.283	71.2%			4.29
1981	2 Tms	MLB	5.64	3.04	1.85	0.74	14.7%	7.9%	6.8%	.263	1.37	.295	70.4%	107	92	3.43
1981	MIN Twins	MLB	5.25	3.24	1.62	0.76	13.6%	8.4%	5.2%	.265	1.40	.293	68.7%	111	97	3.62
1981	CHW White Sox	MLB	7.00	2.33	3.00	0.67	18.6%	6.2%	12.4%	.255	1.26	.301	76.9%	91	75	2.79
1981	Average		4.75	3.18	1.49	0.64	12.5%	8.4%	4.1%	.250	1.32	.274	72.1%			4.18
1982	CHW White Sox	MLB	4.57	1.97	2.32	0.47	12.1%	5.2%	6.9%	.283	1.34	.314	69.1%	93	75	3.07
1982	Average		5.04	3.16	1.60	0.80	13.2%	8.3%	4.9%	.256	1.35	.280	71.5%			4.35
1983	CHW White Sox	MLB	4.77	2.81	1.70	1.01	12.3%	7.3%	5.1%	.262	1.35	.279	66.7%	115	104	4.19
1983	CHW White Sox	MLB	0.00	54.00	0.00	0.00	0.0%	50.0%	-50.0%	.500	9.00	.500	0.0%	999	506	20.76
1983	Average		5.18	3.22	1.61	0.79	13.5%	8.4%	5.1%	.256	1.35	.281	71.2%			4.32
1984	PHI Phillies	MLB	5.50	2.41	2.28	0.32	14.4%	6.3%	8.1%	.262	1.30	.302	70.5%	90	81	2.85
1984	Average		5.37	3.18	1.69	0.78	14.0%	8.3%	5.7%	.255	1.34	.282	71.5%			4.24
1985	PHI Phillies	MLB	5.44	3.08	1.76	1.27	13.9%	7.9%	6.0%	.270	1.42	.289	70.7%	125	122	4.43
1985	Average		5.37	3.31	1.62	0.86	14.0%	8.6%	5.4%	.252	1.34	.277	71.5%			4.41
Total	- - -	MLB	5.99	2.81	2.13	0.68	16.0%	7.5%	8.5%	.247	1.26	.282	73.3%	91	90	3.26
Postseason	- - -	MLB	6.92	3.79	1.82	0.89	18.5%	10.1%	8.3%	.212	1.21	.241	71.4%	105	101	3.55

Jerry Koosman

Stats

Dashboard

Standard

Advanced

BAL	CHW	LAA
BOS	CLE	OAK
NYY	DET	SEA
TBR	KCR	TEX
TOR	MIN	HOU

ATL	CHC	ARI
MIA	CIN	COL
WSN	MIL	LAD
NYM	PIT	SDP
PHI	STL	SFG