Bill Kostich

Position: Relief Pitcher

Bats: Left • Throws: Left

6-0, 190lb (183cm, 86kg)

Born: February 1, 1971 in Dearborn, MI us

Draft: Drafted by the Seattle Mariners in the 9th round of the 1989 MLB June Amateur Draft from Taylor Center HS (Taylor, MI).

High School: Taylor Center HS (Taylor, MI)

Full Name: William Robert Kostich

Player News

Register Pitching
Year	Age	AgeDif	Tm	Lg	Lev	Aff	W	L	W-L%	ERA	RA9	G	GS	GF	CG	SHO	SV	IP	H	R	ER	HR	BB	IBB	SO	HBP	BK	WP	BF	WHIP	H9	HR9	BB9	SO9	SO/W
1989	18	-1.6	Mariners	ARIZ	Rk	SEA	2	3	.400	5.44	6.89	17	3	4	0	0	0	49.2	54	38	30	4	13	2	53	1	5	1		1.349	9.8	0.7	2.4	9.6	4.08
1990	19	-1.2	Mariners	ARIZ	Rk	SEA	3	1	.750	0.40	1.39	23	0	18	0	0	6	45.1	28	7	2	1	6	1	39	1	2	0		0.750	5.6	0.2	1.2	7.7	6.50
1991	20	-2.2	Peninsula	CARL	A+	SEA	1	5	.167	5.64	6.83	33	8	15	1	0	1	83.0	97	63	52	7	34	1	55	5	3	6	386	1.578	10.5	0.8	3.7	6.0	1.62
1992	21	-1.4	Peninsula	CARL	A+	SEA	2	2	.500	4.19	5.74	33	0	12	0	0	2	58.0	61	37	27	3	22	1	45	3	1	4	259	1.431	9.5	0.5	3.4	7.0	2.05
1993	22		2 Teams	2 Lgs	A-A+	SEA	0	3	.000	1.60	3.73	31	0	13	0	0	3	50.2	57	21	9	0	14	2	51	4	1	1	229	1.401	10.1	0.0	2.5	9.1	3.64
1993	22	-0.8	Lakeland	FLOR	A+	DET	0	1	.000	2.57	6.00	11	0	2	0	0	0	21.0	29	14	6	0	6	1	18	3	0	0	103	1.667	12.4	0.0	2.6	7.7	3.00
1993	22	0.2	Appleton	MIDW	A	SEA	0	2	.000	0.91	2.12	20	0	11	0	0	3	29.2	28	7	3	0	8	1	33	1	1	1	126	1.213	8.5	0.0	2.4	10.0	4.13

1995	24	1.5	Lakeland	FLOR	A+	DET	1	0	1.000	0.00	0.00	4	0	2	0	0	0	6.0	2	0	0	0	2	0	2	1	0	0	21	0.667	3.0	0.0	3.0	3.0	1.00
All Levels (6 Seasons)							9	14	.391	3.69	5.10	141	11	64	1	0	12	292.2	299	166	120	15	91	7	245	15	12	12	895	1.333	9.2	0.5	2.8	7.5	2.69

A+ (4 seasons)					Minors		4	8	.333	4.55	6.11	81	8	31	1	0	3	168.0	189	114	85	10	64	3	120	12	4	10	769	1.506	10.1	0.5	3.4	6.4	1.88
A (1 season)					Minors		0	2	.000	0.91	2.12	20	0	11	0	0	3	29.2	28	7	3	0	8	1	33	1	1	1	126	1.213	8.5	0.0	2.4	10.0	4.13
Rk (2 seasons)					Minors		5	4	.556	3.03	4.26	40	3	22	0	0	6	95.0	82	45	32	5	19	3	92	2	7	1		1.063	7.8	0.5	1.8	8.7	4.84