Jerry Koosman

Position: Pitcher

Bats: Right • Throws: Left

6-2, 205lb (188cm, 92kg)

Born: December 23, 1942 in Appleton, MN us

High School: West Central School of Agriculture (Morris, MN)

School: University of Minnesota Morris (Morris, MN)

Debut: April 14, 1967 (Age 24-112d, 12,558th in major league history)
vs. PHI 2.2 IP, 0 H, 2 SO, 2 BB, 0 ER

Last Game: August 21, 1985 (Age 42-241d)
vs. LAD 0.2 IP, 5 H, 0 SO, 2 BB, 5 ER, L

Rookie Status: Exceeded rookie limits during 1968 season

Full Name: Jerome Martin Koosman

Nicknames: Kooz

View Player Info from the B-R Bullpen

View Player Bio from the SABR BioProject

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SUMMARY

Career

WAR

53.6

222

209

ERA

3.36

612

527

3839.1

2556

WHIP

1.259

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Team Record in Appearances: 24-18 / in Starts: 13-6

Days of Rest

Run Support in Games Started

Total runs in Starts, Avg. is per 27 outs

Inning/Score Appearance Matrix

Multiple inning appearances: 35, Entered with runners on base: 14

1982 Pitching Game Log

Click two rows to sum games (Clear)

1982 Pitching Game Log
Rk	Gcar	Gtm	Date	Tm		Opp	Rslt	Inngs	Dec	DR	IP	H	R	ER	BB	SO	HR	HBP	ERA	FIP	BF	GB	FB	LD	PU	Unk	GSc	IR	IS	SB	CS	PO	AB	2B	3B	IBB	GDP	SF	ROE	aLI	WPA	acLI	cWPA	RE24	Entered	Exited
1	479	1	Apr 11(1)	CHW	@	NYY	W,7-6	GS-6		99	5.2	8	6	6	2	2	1	0	9.53	5.36	25	8	5	0	0	8	29			0	0	0	23	1	0	0	2	0	0	1.19	-0.468	1.48	-0.35%	-3.38	1b start tie	6b -2- 2 out tie
2	480	5	Apr 15	CHW	@	BOS	W,8-4	6-GF	S(1)	3	3.2	2	0	0	0	4	0	0	5.79	3.47	12	7	1	0	0	0		0	0	0	0	0	12	0	0	0	1	0	0	.59	0.108	.95	0.10%	1.87	6b --- 1 out a4	9b end a 4
3	481	8	Apr 18	CHW		BAL	W,6-4	GS-5		2	5.0	7	3	3	3	3	0	0	5.65	3.41	23	5	5	0	1	7	41			0	0	0	20	3	0	0	1	0	0	.96	-0.020	1.70	-0.02%	-0.50	1t start tie	5t 3 out a1
4	482	10	Apr 21	CHW		NYY	L,0-1	9-9		2	0.0	1	0	0	0	0	0	0	5.65	3.41	1	0	0	0	0	1		0	0	0	0	0	1	0	0	0	0	0	0	.66	-0.024	1.16	-0.03%	-0.38	9t --- 0 out d1	9t 1-- 0 out d1
5	483	11	Apr 23	CHW	@	BAL	W,4-2	9-GF	S(2)	1	0.1	0	0	0	0	0	0	0	5.52	3.40	1	1	0	0	0	0		1	0	0	0	0	1	0	0	0	0	0	0	1.56	0.045	2.67	0.05%	0.23	9b 1-- 2 out a2	9b end a 2
6	484	15	Apr 26(2)	CHW		BOS	L,0-5	6-GF		2	4.0	8	4	4	3	0	0	0	6.27	3.73	22	5	6	0	1	8		0	0	1	0	0	19	0	0	0	1	0	0	.53	-0.231	.81	-0.21%	-2.00	6t --- 0 out d1	9t end d 5
7	485	19	Apr 30	CHW		DET	L,4-6	7-11	L(0-1)	3	4.1	4	2	2	1	2	1	0	5.87	4.06	17	7	3	0	0	4		0	0	0	1	0	16	0	0	0	0	0	0	1.55	0.031	2.38	0.03%	0.98	7t --- 0 out tie	11t 1-- 1 out tie
May				Tm		Opp	Rslt	Inngs	Dec	DR	IP	H	R	ER	BB	SO	HR	HBP	ERA	FIP	BF	GB	FB	LD	PU	Unk	GSc	IR	IS	SB	CS	PO	AB	2B	3B	IBB	GDP	SF	ROE	aLI	WPA	acLI	cWPA	RE24	Entered	Exited
8	486	24	May 7	CHW	@	DET	W,8-5	9-9		6	0.0	2	0	0	0	0	0	0	5.87	4.06	3	1	0	0	0	2		1	1	0	0	0	3	0	0	0	0	0	0	1.48	-0.183	2.31	-0.17%	-2.05	9b 1-- 1 out a4	9b 123 1 out a3
9	487	25	May 8	CHW	@	DET	W,7-4	7-GF	W(1-1)	0	3.0	0	0	0	0	1	0	0	5.19	3.83	9	2	6	1	0	0		0	0	0	0	0	9	0	0	0	0	0	0	.99	0.225	1.73	0.24%	1.50	7b --- 0 out d1	9b end a 3
10	488	28	May 11	CHW	@	TOR	L,4-9	6-GF(8)		2	3.0	5	2	2	0	1	0	0	5.28	3.65	13	4	3	0	0	5		0	0	0	0	0	13	1	0	0	1	0	0	.12	-0.003	.24	0.00%	-0.36	6b --- 0 out d5	8b end d 5
11	489	32	May 15	CHW		MIL	L,3-8	8-GF		3	2.0	5	2	2	1	2	0	0	5.52	3.56	12	2	3	0	0	4		1	1	0	0	0	11	1	1	1	0	0	0	.33	-0.040	.65	-0.05%	-1.38	8t -2- 0 out d2	9t end d 5
12	490	38	May 22	CHW		CLE	W,7-3	7-GF	S(3)	6	2.2	1	0	0	1	1	0	0	5.08	3.52	10	4	4	0	0	0		2	0	0	0	0	9	0	0	0	0	0	0	.54	0.108	1.18	0.14%	2.19	7t 1-3 1 out a4	9t end a 4
13	491	39	May 23	CHW		CLE	L,4-6	12-14	L(1-2)	0	2.0	4	2	2	1	1	0	1	5.30	3.59	12	4	2	0	1	3		0	0	0	0	0	8	2	0	1	0	0	0	3.07	-0.218	6.63	-0.28%	-1.42	12t --- 1 out tie	14t -2- 1 out d2
14	492	43	May 28	CHW	@	CLE	L,2-5	4-GF(8)		4	4.2	2	0	0	0	3	0	0	4.69	3.34	15	6	4	0	0	2		2	0	0	0	0	15	0	0	0	1	0	0	.26	0.096	.58	0.13%	2.91	4b 12- 1 out d3	8b end d 3
Jun				Tm		Opp	Rslt	Inngs	Dec	DR	IP	H	R	ER	BB	SO	HR	HBP	ERA	FIP	BF	GB	FB	LD	PU	Unk	GSc	IR	IS	SB	CS	PO	AB	2B	3B	IBB	GDP	SF	ROE	aLI	WPA	acLI	cWPA	RE24	Entered	Exited
15	493	47	Jun 1	CHW	@	KCR	L,3-4	5-8		3	3.0	2	0	0	0	1	0	0	4.36	3.25	10	5	2	1	0	2		3	0	0	0	0	10	0	0	0	1	0	0	.73	0.125	1.85	0.19%	1.95	5b 123 2 out d2	8b -2- 2 out d1
16	494	51	Jun 6	CHW	@	TEX	L,4-5	7-8	BL(1-3)	4	1.2	3	2	2	1	2	0	0	4.60	3.21	9	2	1	0	0	3		0	0	0	0	0	8	0	0	0	0	0	0	1.87	-0.136	4.05	-0.18%	-0.48	7b --- 0 out a1	8b 12- 2 out tie
17	495	53	Jun 8	CHW		OAK	W,5-4	7-7		1	0.1	1	0	0	0	1	0	0	4.57	3.16	2	0	0	0	0	1		1	1	3	0	0	2	0	0	0	0	0	0	1.08	-0.118	2.51	-0.17%	-0.77	7t 1-- 2 out d1	7t 3 out d2
18	496	56	Jun 11	CHW		CAL	L,5-6	5-GF		2	5.0	3	1	1	0	0	0	0	4.29	3.11	18	4	11	0	0	3		2	2	0	0	0	16	1	0	0	0	2	0	.19	-0.034	.53	-0.06%	0.49	5t 12- 0 out d3	9t end d 3
19	497	58	Jun 13	CHW		CAL	L,4-7	8-GF		1	1.1	5	1	1	0	1	0	0	4.35	3.07	9	3	0	0	0	5		2	1	0	0	0	9	0	0	0	0	0	0	.43	-0.069	1.08	-0.11%	-1.06	8t 12- 2 out d2	9t end d 4
20	498	60	Jun 16	CHW	@	OAK	W,7-6	7-7		2	0.2	0	0	0	0	0	0	0	4.30	3.06	2	0	2	0	1	0		2	0	0	0	0	2	0	0	0	0	0	0	1.41	0.073	2.85	0.09%	1.03	7b 12- 0 out d1	7b 12- 2 out d1
21	499	63	Jun 19	CHW	@	CAL	W,7-6	7-8	H(1)	2	1.0	1	0	0	1	1	0	0	4.22	3.07	5	1	1	0	0	1		1	1	0	0	0	4	0	0	0	0	0	0	1.53	0.012	4.28	0.02%	-0.41	7b -2- 2 out a3	8b 1-- 2 out a2
22	500	66	Jun 22	CHW		MIN	W,6-5	7-8		2	1.0	3	1	0	0	0	0	0	4.14	3.07	5	2	0	0	0	3		2	0	0	0	0	5	0	0	0	0	0	0	2.69	-0.119	5.34	-0.14%	-0.17	7t 12- 2 out d1	8t --- 2 out tie
23	501	71	Jun 28	CHW	@	MIN	W,8-7	8-8	H(2)	5	0.1	1	1	1	1	0	0	0	4.28	3.12	3	1	0	0	0	1		0	0	0	0	0	2	0	0	0	0	0	0	1.51	-0.078	2.79	-0.09%	-0.69	8b --- 0 out a3	8b 1-3 1 out a3
24	502	72	Jun 29	CHW	@	MIN	L,5-12	8-GF(8)		0	1.0	1	2	2	1	1	0	0	4.53	3.13	6	3	0	0	0	1		2	2	0	0	0	5	1	0	1	0	0	1	.04	-0.007	.08	-0.01%	-2.48	8b 12- 0 out d4	8b end d 8
Jul				Tm		Opp	Rslt	Inngs	Dec	DR	IP	H	R	ER	BB	SO	HR	HBP	ERA	FIP	BF	GB	FB	LD	PU	Unk	GSc	IR	IS	SB	CS	PO	AB	2B	3B	IBB	GDP	SF	ROE	aLI	WPA	acLI	cWPA	RE24	Entered	Exited
25	503	75	Jul 3	CHW		SEA	W,7-6	2-GF	W(2-3)	3	7.2	4	1	1	1	6	0	0	4.12	2.94	27	3	13	3	0	4		1	0	1	1	1	26	0	0	0	0	0	0	1.15	0.415	2.39	0.52%	3.02	2t 1-- 1 out d5	9t end a 1
26	504	81	Jul 10	CHW	@	TOR	W,6-5	GS-5		6	4.1	7	5	5	2	1	0	0	4.52	2.98	22	9	3	0	0	7	28			0	0	0	20	1	0	0	0	0	0	1.16	-0.283	2.17	-0.32%	-3.23	1b start a 3	5b 12- 1 out a1
27	505	85	Jul 16	CHW	@	MIL	L,3-5	GS-8	L(2-4)	5	7.1	10	5	5	1	2	1	0	4.68	3.12	31	14	4	0	0	10	39			1	0	0	30	2	0	0	2	0	0	1.65	-0.458	3.25	-0.54%	-1.61	1b start tie	8b -23 1 out d1
28	506	90	Jul 21	CHW	@	DET	W,9-3	GS-7		4	6.1	7	3	2	1	1	0	0	4.54	3.10	28	5	14	1	0	7	49			0	0	0	27	2	0	0	0	0	1	.66	-0.084	1.08	-0.08%	-0.41	1b start tie	7b 12- 1 out d2
29	507	95	Jul 26	CHW	@	BAL	L,2-6	GS-4	L(2-5)	4	3.0	6	6	3	0	2	1	0	4.70	3.19	16	6	3	0	0	5	31			0	0	0	16	1	0	0	0	0	1	.96	-0.346	1.78	-0.39%	-3.88	1b start tie	4b 1-- 0 out d4
Aug				Tm		Opp	Rslt	Inngs	Dec	DR	IP	H	R	ER	BB	SO	HR	HBP	ERA	FIP	BF	GB	FB	LD	PU	Unk	GSc	IR	IS	SB	CS	PO	AB	2B	3B	IBB	GDP	SF	ROE	aLI	WPA	acLI	cWPA	RE24	Entered	Exited
30	508	101	Aug 1	CHW		BOS	W,4-2	GS-6	W(3-5)	5	6.0	6	2	0	1	1	0	0	4.38	3.17	24	7	9	1	0	6	56			0	1	1	23	0	0	0	1	0	1	1.25	0.162	1.36	0.11%	1.00	1t start tie	6t 3 out a1
31	509	106	Aug 6	CHW	@	BOS	W,6-3	GS-7	W(4-5)	4	7.0	9	1	1	0	1	0	0	4.16	3.12	28	7	11	1	0	9	56			0	0	0	28	0	0	0	2	0	0	.67	0.237	1.16	0.25%	2.71	1b start a 1	7b 3 out a5
32	510	112	Aug 12	CHW		NYY	W,2-1	CG	W(5-5)	5	9.0	4	1	1	2	1	0	0	3.89	3.12	31	13	11	0	0	4	74			0	1	0	27	1	0	0	0	0	0	1.20	0.546	2.36	0.65%	3.50	1t start tie	9t 3 out tie
33	511	117	Aug 17	CHW	@	TEX	L,3-4	GS-8		4	8.0	4	1	1	2	3	0	1	3.70	3.12	29	11	8	2	0	4	71			0	0	0	25	1	0	0	2	0	0	.78	0.222	1.98	0.34%	2.76	1b start tie	8b 3 out d1
34	512	122	Aug 22	CHW	@	KCR	W,12-3	CG	W(6-5)	4	9.0	7	3	3	2	7	0	0	3.65	3.03	34	7	11	0	0	7	66			0	0	0	31	2	0	0	1	1	0	.33	0.237	.55	0.24%	1.50	1b start tie	9b 3 out a9
35	513	126	Aug 27	CHW		KCR	L,1-7	GS-4	L(6-6)	4	3.2	10	5	5	0	1	0	0	3.90	3.00	21	9	2	0	0	9	22			0	0	0	20	2	0	0	0	1	0	1.52	-0.330	2.02	-0.26%	-3.23	1t start tie	4t 1-- 2 out d4
Sept				Tm		Opp	Rslt	Inngs	Dec	DR	IP	H	R	ER	BB	SO	HR	HBP	ERA	FIP	BF	GB	FB	LD	PU	Unk	GSc	IR	IS	SB	CS	PO	AB	2B	3B	IBB	GDP	SF	ROE	aLI	WPA	acLI	cWPA	RE24	Entered	Exited
36	514	131	Sep 1	CHW		CLE	W,6-0	SHO	W(7-6)	4	9.0	4	0	0	2	7	0	0	3.64	2.92	30	8	11	0	2	2	84			0	0	1	28	0	0	0	1	0	0	.59	0.392	.14	0.06%	4.50	1t start tie	9t 3 out a6
37	515	136	Sep 6	CHW	@	CAL	L,6-8	GS-6		4	6.0	6	4	4	4	2	1	0	3.74	3.06	26	4	10	0	0	6	42			0	0	0	22	0	1	0	1	0	0	1.29	-0.035	1.59	-0.03%	-1.00	1b start tie	6b 3 out a1
38	516	140	Sep 11	CHW	@	OAK	W,2-0	GS-9	W(8-6)	4	8.0	6	0	0	1	6	0	0	3.54	2.98	30	6	11	2	1	6	75			0	0	0	29	0	0	0	0	0	0	1.08	0.277	2.27	0.35%	2.78	1b start tie	9b 12- 0 out a2
39	517	144	Sep 15	CHW		CAL	W,8-3	GS-6	W(9-6)	3	6.0	7	2	2	0	2	1	0	3.52	3.03	24	6	9	1	1	7	52			0	1	0	24	2	0	0	0	0	0	.69	0.122	.16	0.02%	1.00	1t start tie	6t 3 out a5
40	518	148	Sep 19	CHW		OAK	W,8-3	GS-7	W(10-6)	3	6.1	8	3	3	2	9	1	0	3.55	3.03	29	3	7	0	2	8	52			0	0	0	26	0	1	0	0	1	0	1.08	0.022	.20	0.00%	-0.41	1t start tie	7t 12- 1 out a5
41	519	152	Sep 23	CHW	@	SEA	W,12-4	GS-7	W(11-6)	3	7.0	11	3	3	1	5	1	0	3.56	3.05	31	8	6	1	1	11	47			1	0	0	30	3	0	0	1	0	0	.58	0.094	.01	0.00%	0.61	1b start a 3	7b 3 out a7
42	520	156	Sep 27(1)	CHW		SEA	L,4-8	GS-5	L(11-7)	3	4.0	9	7	7	0	4	1	0	3.84	3.07	21	4	4	0	0	9	20			0	0	0	20	2	1	0	0	1	0	.62	-0.330	.00	0.00%	-4.38	1t start tie	5t 1-- 0 out d5
							24-18		W-L:11-7,Sv:3,BSv:1,Hld:2	3.1	173.1	194	81	74	38	88	9	2	3.84	3.07	726	1.00		3%	3%	185	49	23	39%	7	5	3	675	29	4	3	19	6	4	.94	-0.065	1.50	0.03%	0.84

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