Player Card Bill Koski, The Jet Age

RP Bill Koski, R, Indians [Signed: $7/5 yr(s)]

Year	Team	G	GS	W	L	ERA	oOBP	WHIP	H/9	BB/9	SO/9	IP	H	R	ER	HR	BB	SO	CG	SV	BS	SHO	QS	HB	WP	DICE
1954	Indians	21	0	3	2	2.81	.294	1.25	7.9	3.4	5.3	32.0	28	13	10	3	12	19	0	4	2	0	0	0	0	4.16
1955 *	Indians	68	0	14	5	1.79	.231	0.90	5.2	2.9	2.9	161.1	93	38	32	9	52	52	0	16	4	0	0	0	0	4.05
1956 *	Indians	62	0	10	4	1.45	.256	1.03	5.4	3.9	4.3	154.2	93	28	25	8	66	74	0	9	4	0	0	1	0	4.02
1957 *	Indians	67	0	17	6	1.78	.245	0.97	5.0	3.7	4.1	162.0	90	33	32	10	67	73	0	11	5	0	0	1	0	4.16
1958	Indians	69	0	12	8	2.49	.276	1.14	6.6	3.6	5.2	159.1	117	48	44	7	64	91	0	12	8	0	0	1	0	3.65
1959 *	Indians	72	0	13	2	1.77	.238	0.93	5.2	3.2	4.5	198.1	115	44	39	12	70	98	0	14	1	0	0	1	0	3.87
Current *	Indians	79	0	16	2	1.64	.235	0.92	5.1	3.2	4.3	214.0	121	47	39	12	75	103	0	14	1	0	0	1	0	3.83
	Totals	438	0	85	29	1.84	.248	0.98	5.5	3.4	4.2	1081.2	657	251	221	61	406	510	0	80	25	0	0	5	0	3.93

Drafted #30 by the Cleveland Indians in round 2 of the Live Draft.

Season Splits

Year	WHIP VR	WHIP VL	H/9 VR	H/9 VL	BB/9 VR	BB/9 VL	SO/9 VR	SO/9 VL	IP VR	HA VR	BB VR	SO VR	IP VL	HA VL	BB VL	SO VL
Current	0.81	1.11	4.9	5.5	2.5	4.4	4.6	3.8	139.0	75	38	71	75.0	46	37	32

Milestones

No Hitters	Perfect Games
None.	None.

Milestones started recording October, 2023.

Player Actions

Real Stats

Scroll table or stretch table.

Role	Age	Year	Rk	W	L	ERA	oOBP	eOBP	WHIP (Rk)	H/9 (Rk)	BB/9	SO/9 (Rk)	IP	H	HR	BB	SO	CG	SV	WP	Stamina	Fire	P
RP	27	1951	99	0	1	6.67	.183	.210	0.71 (98)	3.8 (99)	2.6	7.5 (94)	62	26	2	18	52	0	0	0	55	20	C

See Bill Koski full career | Request skin change

Before Last Progression (3/18/2026)

Scroll table or stretch table.

Role	Age	Year	Rk	W	L	ERA	oOBP	eOBP	WHIP (Rk)	H/9 (Rk)	BB/9	SO/9 (Rk)	IP	H	HR	BB	SO	CG	SV	WP	Stamina	Fire	P
RP	26	1951	99	0	1	6.67	.188	.210	0.73 (98)	3.9 (99)	2.7	6.5 (88)	60	26	2	18	43	0	0	0	53	19	C

Game Log

Scroll table or stretch table.

Date	Opponent	Score	Dec	IP	H	R	ER	HR	BB	K	QS	ERA (season)
5/19	@Tigers	W 4-0	-	1.0	0	0	0	0	0	1	0	1.64
5/19	Tigers	W 4-3	W	3.0	1	0	0	0	1	1	0	1.65
5/16	Athletics	W 3-1	W	3.1	1	0	0	0	1	0	0	1.67
5/16	Athletics	L 4-1	-	1.1	1	0	0	0	1	0	0	1.70
5/16	@Athletics	L 5-1	-	2.1	1	2	0	0	2	1	0	1.71
5/15	@Athletics	W 5-3	W	4.0	1	0	0	0	0	1	0	1.73
5/15	Athletics	L 2-0	-	0.2	1	1	0	0	0	1	0	1.76
5/14	Athletics	W 4-2	SV	4.0	1	0	0	0	0	1	0	1.77
5/13	Athletics	W 7-1	SV	3.1	1	0	0	0	2	1	0	1.81
5/12	White Sox	L 6-0	-	3.0	4	3	3	0	0	2	0	1.84
5/11	@Athletics	L 3-2	-	3.1	2	1	1	1	0	2	0	1.72
5/10	@Yankees	W 7-6	-	3.0	3	2	2	0	4	4	0	1.71
5/9	@Senators	L 5-4	BS, L	1.2	2	1	1	1	0	0	0	1.63
5/9	@Orioles	L 3-2	-	0.2	1	0	0	0	0	0	0	1.60
5/8	Tigers	L 12-6	-	2.0	2	1	0	0	0	2	0	1.61
5/7	@White Sox	W 8-6	W	3.1	1	0	0	0	4	4	0	1.62
5/7	@White Sox	W 5-2	SV	3.0	2	1	1	1	0	0	0	1.66
5/6	Athletics	W 5-0	-	1.1	0	0	0	0	0	1	0	1.63
5/6	White Sox	L 3-1	-	3.2	3	1	1	1	1	1	0	1.64
5/6	White Sox	W 2-1	W	1.1	0	0	0	0	0	1	0	1.63
5/5	White Sox	L 7-3	-	0.2	4	3	3	0	1	1	0	1.64
5/4	Yankees	L 3-1	-	3.0	4	1	0	0	0	2	0	1.48
5/4	Yankees	L 6-3	-	1.0	2	2	2	1	0	0	0	1.51
5/3	Orioles	L 9-7	-	3.1	1	0	0	0	0	6	0	1.41
5/3	Orioles	L 8-5	-	1.0	2	2	2	1	1	0	0	1.44
5/2	Senators	L 4-3	-	3.1	2	0	0	0	2	0	0	1.33
5/2	@Tigers	W 9-4	W	5.0	1	0	0	0	1	2	0	1.36
5/1	@Athletics	W 6-2	SV	3.0	2	0	0	0	1	1	0	1.40
4/30	@Athletics	W 5-4	SV	4.0	2	0	0	0	0	0	0	1.43
4/30	@Orioles	L 5-3	-	4.0	4	1	1	1	0	1	0	1.48
4/29	@Senators	L 4-3	L	3.2	1	1	1	0	4	0	0	1.45
4/28	Orioles	L 3-2	-	5.0	0	0	0	0	1	3	0	1.42
4/27	Senators	L 2-1	-	3.2	0	0	0	0	1	1	0	1.48
4/26	Senators	W 4-2	SV	2.1	1	0	0	0	0	3	0	1.52
4/25	Yankees	W 4-3	W	3.2	2	1	1	1	1	3	0	1.55
4/25	Yankees	W 7-2	-	0.1	0	0	0	0	0	0	0	1.53
4/24	@Red Sox	W 4-1	SV	2.1	0	0	0	0	0	2	0	1.53
4/24	@Yankees	W 6-2	W	4.2	2	0	0	0	0	1	0	1.56
4/23	Tigers	L 3-1	-	3.1	2	1	1	1	2	0	0	1.63
4/22	@White Sox	W 5-3	SV	2.2	0	3	1	0	5	2	0	1.59
4/22	@White Sox	L 2-1	-	0.2	0	0	0	0	0	1	0	1.55
4/21	@Tigers	L 9-3	-	3.0	2	1	1	1	2	2	0	1.56
4/21	@Athletics	W 2-0	SV	1.1	1	0	0	0	0	0	0	1.51
4/20	White Sox	L 4-1	-	3.1	3	0	0	0	1	2	0	1.54
4/20	Red Sox	W 4-2	SV	3.2	1	0	0	0	0	1	0	1.59
4/19	Red Sox	W 6-3	W	4.2	1	0	0	0	1	2	0	1.65
4/19	Orioles	L 4-3	-	2.1	1	0	0	0	1	1	0	1.74
4/18	@Yankees	W 8-3	-	3.0	0	0	0	0	4	0	0	1.79
4/17	@Yankees	W 12-5	W	3.0	2	0	0	0	2	1	0	1.85
4/17	@Red Sox	L 5-1	-	1.0	3	2	2	1	1	0	0	1.92
4/17	@Red Sox	L 1-0	-	1.0	1	0	0	0	0	1	0	1.72
4/16	@Senators	W 12-4	W	3.2	2	1	1	0	3	2	0	1.74
4/15	@Orioles	W 3-2	-	3.0	3	1	1	0	1	0	0	1.70
4/15	Yankees	L 6-4	-	3.1	3	2	2	0	0	0	0	1.65
4/14	Yankees	L 3-2	-	1.1	0	0	0	0	0	3	0	1.46
4/14	Yankees	W 14-2	-	1.2	1	0	0	0	0	0	0	1.49
4/13	Senators	W 10-4	SV	2.2	1	0	0	0	1	2	0	1.53
4/13	Athletics	W 3-2	-	4.0	0	0	0	0	2	4	0	1.60
4/13	Athletics	W 2-1	SV	0.2	0	0	0	0	0	0	0	1.71
4/12	@White Sox	W 3-0	-	3.0	2	0	0	0	2	5	0	1.73
4/11	Tigers	L 11-0	-	1.0	3	3	3	1	0	1	0	1.82
4/11	Tigers	L 5-2	-	3.2	4	1	1	0	1	1	0	1.35
4/10	@Senators	L 3-1	-	1.0	0	0	0	0	0	1	0	1.27
4/10	@Orioles	W 3-2	SV	2.0	2	0	0	0	0	0	0	1.29
4/9	@Orioles	W 5-1	W	3.0	0	0	0	0	0	1	0	1.35
4/8	@Yankees	W 3-0	SV	2.2	0	0	0	0	0	0	0	1.44
4/7	@White Sox	L 8-4	-	2.2	1	0	0	0	0	1	0	1.54
4/7	@White Sox	W 7-6	W	2.2	4	2	2	0	2	1	0	1.64
4/6	Orioles	W 7-6	-	2.2	3	1	1	0	3	2	0	1.26
4/5	Senators	W 5-3	W	3.1	1	1	0	0	1	3	0	1.09
4/5	Yankees	W 5-4	-	3.2	2	0	0	0	1	2	0	1.21
4/4	Red Sox	W 2-1	W	2.1	1	0	0	0	1	1	0	1.38
4/4	White Sox	W 8-1	-	2.2	0	0	0	0	2	0	0	1.52
4/3	White Sox	L 5-3	-	4.1	3	0	0	0	1	0	0	1.71
4/3	@Tigers	W 8-1	-	2.1	1	0	0	0	0	1	0	2.16
4/2	Athletics	L 5-2	-	4.1	1	1	1	0	2	2	0	2.51
4/1	Athletics	L 8-6	-	2.0	4	3	3	0	0	0	0	2.70
4/1	Tigers	W 5-3	-	5.0	0	0	0	0	2	1	0	0.00
3/31	@Athletics	W 8-5	W	3.0	4	0	0	0	2	6	0	0.00

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The Jet Age - 1959

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RP Bill Koski, R, Indians [Signed: $7/5 yr(s)]

Season Splits

Milestones

Player Actions

Real Stats

Before Last Progression (3/18/2026)

Game Log