John Klein

Prospect Rankings

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year

source

type

team

rank

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2026

Baseball America

Team

Minnesota Twins

23

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2026

MLB Pipeline

Team

Minnesota Twins

20

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2 record(s)

Scouting Grades

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Player 20-80 scouting grades are available to TBC PREMIUM subscribers

1 record(s)

Pitching Statistics

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MLB Stats

Minor League Stats

College Stats

Yearly Summary

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year	team name	league	level	mlb	#	age	tbc+	w	l	era	g	gs	cg	sho	gr	gf	sv	ip	h	r	er	hr	bb	so	wp	bk	hb	whip	h9	hr9	bb9	so9	ra9	so/bb
2021	Iowa Central CC	NJCAA-Reg11	NJCAA			19	115	7	3	3.68	12	12	5	0	0	0	0	71.0	66	43	29	6	37	82	0	0	0	1.45	8.37	0.76	4.69	10.39	5.45	2.22
2022	Iowa Central CC	NJCAA-Reg11	NJCAA			20	126	6	3	5.12	13	12	0	0	1	0	0	63.1	56	38	36	6	32	83	0	0	0	1.39	7.96	0.85	4.55	11.79	5.40	2.59
2022	FCL Twins	FCL	Rk	MIN	40	20		0	0	0.00	2	0	0	0	2	0	0	2.0	1	0	0	0	1	2	0	0	0	1.00	4.50	0.00	4.50	9.00	0.00	2.00
2023	FCL Twins	FCL	Rk	MIN	44	21	94	0	3	5.87	6	6	0	0	0	0	0	23.0	29	17	15	3	9	27	2	0	6	1.65	11.35	1.17	3.52	10.57	6.65	3.00
2023	Fort Myers Mighty Mussels	FSL2	A	MIN	44,46	21	123	2	1	2.97	6	6	1	0	0	0	0	30.1	18	10	10	1	13	30	0	1	3	1.02	5.34	0.30	3.86	8.90	2.97	2.31
2023	Cedar Rapids Kernels	Midw2	A+	MIN	40	21		0	0	3.60	1	1	0	0	0	0	0	5.0	6	2	2	0	1	4	1	0	1	1.40	10.80	0.00	1.80	7.20	3.60	4.00
2024	Cedar Rapids Kernels	Midw2	A+	MIN	40	22	93	8	3	4.57	22	20	0	0	2	0	0	100.1	102	51	51	9	38	90	3	0	7	1.40	9.15	0.81	3.41	8.07	4.57	2.37
2025	Wichita Wind Surge	Tex2	AA	MIN	46	23	114	7	5	3.12	24	11	0	0	13	0	0	80.2	70	42	28	6	24	95	4	0	8	1.17	7.81	0.67	2.68	10.60	4.69	3.96
2025	St. Paul Saints	IL2	AAA	MIN	60	23	108*	0	5	6.66	7	4	0	0	3	0	0	25.2	26	20	19	1	13	33	2	0	3	1.52	9.12	0.35	4.56	11.57	7.01	2.54
2026	Buffalo Bisons	IL2	AAA	TOR		24	104	0	0	5.40	4	4	0	0	0	0	0	13.1	13	9	8	0	12	13	1	0	1	1.88	8.78	0.00	8.10	8.78	6.08	1.08
2026	St. Paul Saints	IL2	AAA	MIN		24	104	2	4	5.91	24	14	0	0	10	0	0	64.0	63	43	42	14	34	74	3	3	4	1.52	8.86	1.97	4.78	10.41	6.05	2.18
2026	Minnesota Twins	AL	MLB	MIN		24		0	1	4.15	3	0	0	0	3	2	0	4.1	3	2	2	1	4	2	0	0	0	1.62	6.23	2.08	8.31	4.15	4.15	0.50
Tot:	MLB (1 yrs)		MLB					0	1	4.15	3	0	0	0	3	2	0	4.1	3	2	2	1	4	2	0	0	0	1.62	6.23	2.08	8.31	4.15	4.15	0.50
Tot:	AL (1 yrs)		AL					0	1	4.15	3	0	0	0	3	2	0	4.1	3	2	2	1	4	2	0	0	0	1.62	6.23	2.08	8.31	4.15	4.15	0.50
Tot:	Minors (5 yrs)		Minors					19	21	4.57	96	66	1	0	30	0	0	344.1	328	194	175	34	145	368	16	4	33	1.37	8.57	0.89	3.79	9.62	5.07	2.54
Tot:	Rk (2 yrs)		Rk					0	3	5.40	8	6	0	0	2	0	0	25.0	30	17	15	3	10	29	2	0	6	1.60	10.80	1.08	3.60	10.44	6.12	2.90
Tot:	A (1 yrs)		A					2	1	2.97	6	6	1	0	0	0	0	30.1	18	10	10	1	13	30	0	1	3	1.02	5.34	0.30	3.86	8.90	2.97	2.31
Tot:	A+ (2 yrs)		A+					8	3	4.53	23	21	0	0	2	0	0	105.1	108	53	53	9	39	94	4	0	8	1.40	9.23	0.77	3.33	8.03	4.53	2.41
Tot:	AA (1 yrs)		AA					7	5	3.12	24	11	0	0	13	0	0	80.2	70	42	28	6	24	95	4	0	8	1.17	7.81	0.67	2.68	10.60	4.69	3.96
Tot:	AAA (2 yrs)		AAA					2	9	6.03	35	22	0	0	13	0	0	103.0	102	72	69	15	59	120	6	3	8	1.56	8.91	1.31	5.16	10.49	6.29	2.03
Tot:	College (2 yrs)		College					13	6	4.35	25	24	5	0	1	0	0	134.1	122	81	65	12	69	165	0	0	0	1.42	8.17	0.80	4.62	11.05	5.43	2.39
Avg:	MLB - 162 Inning avg		MLB					🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	162	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒
Avg:	Minors - 162 Inning avg		Minors					🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	162	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒
Avg:	College - 162 Inning avg		College					🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	162	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒

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Strikeouts	Walks	Hittable	SO/BB	vs Power	Durability	Team Success
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