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: 21-17 / in Starts: 18-16

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: 4

1980 Pitching Game Log

Click two rows to sum games (Clear)

1980 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	414	1	Apr 10	MIN	@	OAK	W,9-7	GS-7		99	6.2	7	4	4	1	4	0	0	5.40	2.00	25	7	6	0	0	7	47			0	0	0	24	1	0	0	3	0	0	.56	0.123	.80	0.11%	0.76	1b start tie	7b 1-3 2 out a3
2	415	6	Apr 15	MIN	@	CAL	L,1-3	GS-5	L(0-1)	4	4.1	7	3	2	1	2	1	0	4.91	3.39	20	6	4	0	1	7	40			0	1	1	19	1	0	0	0	0	1	.70	-0.161	1.07	-0.15%	-1.96	1b start tie	5b -23 1 out d3
3	416	11	Apr 19	MIN	@	SEA	W,8-3	GS-9	W(1-1)	3	8.1	7	3	3	2	4	1	0	4.19	3.68	32	8	11	2	0	7	59			0	0	0	30	1	0	0	2	0	0	.44	0.162	.45	0.10%	1.99	1b start a 2	9b 123 1 out a7
4	417	15	Apr 25	MIN		OAK	W,10-3	GS-8	W(2-1)	5	7.2	7	2	2	3	5	2	0	3.67	4.34	33	6	12	2	0	7	59			0	0	0	30	0	0	0	0	0	0	.51	0.142	.63	0.11%	2.06	1t start tie	8t 1-- 2 out a8
5	418	19	Apr 29	MIN		SEA	L,3-5	GS-7		3	7.0	5	2	2	1	3	1	0	3.44	4.31	26	9	8	2	0	5	61			0	0	0	25	2	0	0	1	0	0	1.02	0.095	1.31	0.07%	1.77	1t start tie	7t 3 out d2
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
6	419	23	May 4	MIN		NYY	L,1-10	GS-4	L(2-2)	4	3.1	9	7	7	2	2	1	0	4.82	4.57	20	2	5	1	0	9	14			0	1	1	17	0	0	0	1	1	1	.98	-0.293	.94	-0.17%	-5.07	1t start tie	4t 1-3 1 out d6
7	420	27	May 9	MIN	@	NYY	L,2-5	GS-8	L(2-3)	4	7.1	7	5	4	0	2	1	0	4.84	4.48	29	13	7	1	0	7	48			0	0	0	27	0	0	0	2	0	2	.41	-0.126	.36	-0.07%	-0.46	1b start tie	8b -23 1 out d3
8	421	32	May 14	MIN	@	BOS	L,6-7	GS-6		4	5.1	8	6	6	0	7	1	0	5.40	4.27	23	3	5	1	0	8	35			0	0	0	23	2	0	0	1	0	0	1.10	-0.175	.84	-0.08%	-1.75	1b start a 3	6b 12- 1 out a2
9	422	33	May 16	MIN		MIL	W,4-3	8-8	W(3-3)	1	0.2	0	0	0	1	1	0	0	5.33	4.27	3	0	1	0	0	0		1	0	0	0	0	2	0	0	1	0	0	0	1.49	0.077	1.07	0.03%	0.71	8t -2- 1 out d1	8t 3 out d1
10	423	36	May 19	MIN	@	CHW	L,0-1	CG(8)	L(3-4)	2	8.0	3	1	1	2	3	0	0	4.76	4.06	29	12	9	3	0	3	73			0	0	1	26	1	0	0	0	0	1	.91	0.241	.92	0.15%	2.97	1b start tie	8b 3 out d1
11	424	40	May 24	MIN	@	MIL	L,0-4	GS-7	L(3-5)	4	6.1	8	4	4	1	4	1	0	4.85	4.06	28	7	9	0	0	7	44			1	0	0	26	3	0	0	0	0	0	.58	-0.122	.37	-0.05%	-1.26	1b start tie	7b -2- 1 out d4
12	425	45	May 29	MIN		CHW	W,5-2	CG	W(4-5)	4	9.0	5	2	2	4	5	0	0	4.50	3.93	33	9	10	1	0	5	70			0	1	1	28	2	1	0	2	0	1	1.11	0.197	.58	0.06%	2.84	1t start tie	9t 3 out a3
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
13	426	49	Jun 3	MIN		BOS	W,9-4	CG	W(5-5)	4	9.0	5	4	1	2	3	1	1	4.12	3.99	36	10	15	5	0	5	68			0	2	0	33	2	0	0	0	0	3	.79	0.159	.23	0.03%	0.84	1t start tie	9t 3 out a5
14	427	53	Jun 8(2)	MIN		TOR	L,4-6	GS-9		4	8.2	9	4	4	1	5	1	0	4.12	3.94	35	14	6	0	0	9	54			0	0	0	32	3	0	0	1	1	0	1.20	-0.001	.57	0.00%	0.39	1t start tie	9t 12- 2 out tie
15	428	55	Jun 11	MIN	@	DET	W,9-5	9-GF	S(1)	2	0.1	0	0	0	0	0	0	0	4.11	3.94	1	0	1	1	0	0		2	0	0	0	0	1	0	0	0	0	0	0	.53	0.015	.16	0.00%	0.51	9b 1-3 2 out a4	9b end a 4
16	429	57	Jun 13	MIN	@	CLE	L,2-6	GS-4	L(5-6)	1	3.2	7	5	5	4	2	0	0	4.42	3.97	21	6	2	0	0	7	25			0	0	0	16	1	0	1	1	0	0	1.40	-0.377	.43	-0.07%	-3.47	1b start tie	4b 1-3 2 out d3
17	430	63	Jun 20	MIN		CLE	L,3-4	14-14		6	0.1	0	0	0	1	0	0	0	4.41	4.00	2	1	0	0	0	0		1	0	1	0	0	1	0	0	0	0	0	0	3.52	0.068	1.31	0.02%	0.24	14t 1-- 2 out tie	14t 3 out tie
18	431	66	Jun 23	MIN		KCR	W,4-1	CG	W(6-6)	2	9.0	10	1	1	2	15	0	0	4.11	3.67	38	7	5	1	0	9	76			1	1	1	35	3	1	0	0	0	0	1.11	0.430	.58	0.14%	3.84	1t start tie	9t 3 out a3
19	432	71	Jun 28	MIN	@	TEX	L,3-11	GS-3	L(6-7)	4	2.0	7	5	5	0	0	1	0	4.46	3.77	12	5	1	1	0	6	22			0	0	0	11	2	0	0	1	0	0	.82	-0.302	.20	-0.05%	-4.65	1b start tie	3b -2- 0 out d5
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
20	433	75	Jul 2	MIN	@	KCR	L,3-4	GS-10	L(6-8)	3	9.1	10	4	4	2	5	0	0	4.41	3.65	38	10	12	1	5	9	55			1	1	1	35	0	1	0	1	0	0	1.33	-0.051	.91	-0.02%	0.62	1b start tie	10b -23 1 out tie
21	434	79	Jul 6	MIN		TEX	W,4-1	8-GF	S(2)	3	1.1	1	0	0	0	1	0	0	4.36	3.63	4	2	0	0	0	1		2	0	0	0	0	4	0	0	0	1	0	0	.95	0.079	.31	0.02%	1.00	8t 12- 2 out a3	9t end a 3
22	435	80	Jul 10	MIN	@	SEA	W,12-4	CG	W(7-8)	3	9.0	8	4	4	0	8	0	0	4.33	3.44	35	9	10	1	0	8	63			0	0	0	35	1	0	0	0	0	0	.27	0.008	.11	0.00%	0.57	1b start a 6	9b 3 out a8
23	436	85	Jul 15	MIN	@	NYY	W,5-4	GS-9	W(8-8)	4	8.0	9	4	4	2	6	2	0	4.34	3.55	34	9	8	1	0	9	52			0	0	0	32	1	0	0	1	0	0	1.35	-0.155	.57	-0.04%	-0.44	1b start tie	9b 1-- 0 out a1
24	437	90	Jul 20	MIN	@	BOS	W,5-4	GS-4		4	3.0	7	4	4	1	1	0	0	4.51	3.54	17	6	2	1	0	7	29			0	0	0	16	5	0	0	0	0	0	.89	-0.213	.27	-0.04%	-3.03	1b start tie	4b -2- 0 out d4
25	438	95	Jul 25(1)	MIN		BOS	L,5-7	GS-5	L(8-9)	4	5.0	8	6	6	2	0	2	0	4.73	3.73	23	5	8	0	0	8	25			0	1	1	20	2	0	1	1	1	0	1.23	-0.407	.17	-0.04%	-3.31	1t start tie	5t 3 out d2
26	439	101	Jul 30	MIN		NYY	W,2-1	CG(10)	W(9-9)	4	10.0	3	1	1	5	4	0	1	4.48	3.73	38	16	9	1	2	3	81			0	0	0	31	2	0	0	1	0	0	1.49	0.750	.09	0.03%	4.38	1t start tie	10t 3 out tie
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
27	440	106	Aug 5	MIN	@	OAK	L,2-3	GS-7	L(9-10)	5	6.2	8	3	3	4	3	0	1	4.46	3.75	29	12	4	1	1	5	45			1	1	0	21	0	0	0	2	0	0	1.64	-0.227	.02	0.00%	-0.18	1b start tie	7b 12- 2 out d1
28	441	111	Aug 10	MIN	@	CAL	W,5-2	GS-8	W(10-10)	4	7.2	9	2	1	1	6	1	0	4.31	3.73	31	6	9	1	3	9	60			0	0	0	30	1	0	0	2	0	0	1.12	0.230	.00	0.00%	1.46	1b start a 3	8b 12- 2 out a3
29	442	117	Aug 17(2)	MIN		CAL	W,6-5	GS-8	W(11-10)	6	7.1	9	5	5	2	5	2	1	4.39	3.83	33	5	11	0	3	9	43			0	0	0	30	2	0	0	1	0	0	.90	0.049	.00	0.00%	-0.98	1t start tie	8t --- 1 out a1
30	443	123	Aug 22	MIN		DET	W,6-5	GS-8		4	7.2	11	5	5	0	6	1	0	4.45	3.79	34	7	10	5	0	11	43			1	0	0	34	2	1	0	0	0	0	1.35	-0.271	.00	0.00%	-1.15	1t start tie	8t 12- 2 out d2
31	444	128	Aug 27	MIN	@	CLE	L,1-4	GS-7	L(11-11)	4	6.1	11	4	4	3	4	0	0	4.49	3.76	32	5	9	0	0	11	36			0	0	0	28	3	0	0	1	1	0	.75	-0.131	.00	0.00%	-1.13	1b start tie	7b -2- 1 out d4
32	445	132	Aug 31	MIN	@	TOR	L,1-7	GS-6	L(11-12)	3	5.2	9	7	4	1	5	1	0	4.55	3.76	28	7	6	1	1	9	33			0	0	0	26	3	0	0	0	0	1	.87	-0.229	.00	0.00%	-4.17	1b start tie	6b -2- 2 out d6
Sep/Oct				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
33	446	137	Sep 6	MIN	@	DET	W,4-0	GS-9	W(12-12)	5	8.1	3	0	0	5	3	0	0	4.36	3.77	33	9	13	1	0	3	75			0	0	0	28	0	0	0	0	0	0	1.03	0.430	.00	0.00%	3.69	1b start tie	9b 12- 1 out a4
34	447	141	Sep 12	MIN	@	CHW	L,3-5	GS-7	L(12-13)	5	7.0	7	4	4	2	3	1	0	4.39	3.79	30	7	11	0	2	7	48			0	0	0	26	2	0	1	0	0	0	1.03	-0.168	.00	0.00%	-0.52	1b start tie	7b 3 out d3
35	448	144	Sep 17(1)	MIN	@	MIL	W,3-2	CG	W(13-13)	4	9.0	8	2	2	2	8	0	0	4.29	3.70	36	6	12	1	0	8	69			1	0	0	33	1	0	1	0	1	0	1.41	0.552	.00	0.00%	2.38	1b start tie	9b 3 out a1
36	449	151	Sep 22	MIN		TEX	W,1-0	GS-9	W(14-13)	4	8.0	9	0	0	3	5	0	0	4.14	3.67	34	13	5	0	0	8	66			0	1	0	31	1	0	0	2	0	2	1.83	0.325	.00	0.00%	3.30	1t start tie	9t 12- 0 out a1
37	450	155	Sep 27	MIN		KCR	W,8-3	CG	W(15-13)	4	9.0	3	3	2	4	5	1	1	4.05	3.71	34	9	12	3	2	3	72			0	0	0	29	0	0	0	1	0	0	.32	0.207	.00	0.00%	1.84	1t start tie	9t 3 out a5
38	451	159	Oct 3	MIN	@	KCR	W,5-3	GS-9	W(16-13)	5	8.0	8	3	3	2	4	1	0	4.03	3.72	33	9	10	3	2	8	56			0	0	0	30	2	0	0	1	1	0	1.39	0.189	.00	0.00%	0.63	1b start a 1	9b 1-- 0 out a2
							21-17		W-L:16-13,Sv:2	3.8	243.1	252	119	109	69	149	24	5	4.03	3.72	1022	1.00		8%	4%	244	51	6	0%	7	10	7	925	52	4	5	30	6	12	1.02	1.119	.35	0.09%	5.24

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