Harmon Zylstra - College Baseball Statistics

High Level

JrCollege

Years

2025-2026

Proper Name

Harmon Zylstra

Positions

Height / Weight

6-1 / 180

Bats / Throws

Left / Left

Birthdate

June 10,2005 Age: 21.082

Colleges

Rochester Community & Technical College (Rochester,MN)

Actions

Update Player Bio | Compare Player

Pitching Statistics

CSV

Glossary

🔒

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
2025	Rochester CC MN	NJCAA-Reg13	NJCAA		16	20	141*	0	0	3.55	6	1	0	0	5	0	0	12.2	13	5	5	0	4	14	0	0	0	1.34	9.24	0.00	2.84	9.95	3.55	3.50
2026	Rochester CC MN	NJCAA-Reg13	NJCAA	SO	16	21	110*	0	0	5.00	8	0	0	0	8		0	9.0	11	4	5	0	9	11	1	0	2	2.22	11.00	0.00	9.00	11.00	4.00	1.22
Tot:	College (2 yrs)		College					0	0	4.15	14	1	0	0	13	0	0	21.2	24	9	10	0	13	25	1	0	2	1.71	9.97	0.00	5.40	10.38	3.74	1.92
Avg:	College - 162 Inning avg		College					🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	162	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒

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College Summer Stats are not set to Merge in this grid. (PREMIUM Feature)

Other Pitching Statistics

CSV

Glossary

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year	team name	league	category	age	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
2025	Rochester Honkers	Northwoods League	College Summer	20	1	0	8.00	5	0	0	0	5	0	0	18.0	22	20	16	4	7	5	3	1	4	1.61	11.00	2.00	3.50	2.50	10.00	0.71
Tot:	CollegeSummer (1 Yrs)		CollegeSummer		1	0	8.00	5	0	0	0	0	5	0	18.0	22	20	16	4	7	5	3	1	4	1.61	11.00	2.00	3.50	2.50	10.00	0.71

Batting Statistics

CSV

Glossary

🔒

MLB Stats

Minor League Stats

College Stats

Yearly Summary

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year	team name	league	level	mlb	#	age	pos	tbc+	g	ab	r	h	2b	3b	hr	rbi	sb	cs	bb	so	hbp	sh	sf	ibb	gdp	tb	pa	xbh	1b	avg	obp	slg	ops	seca	iso	babip	bb%	so%	so/bb	ab/hr
2025	Rochester CC MN	NJCAA-Reg13	NJCAA	Fr	16	20			14	20	3	9	0	0	0	2	3	0	2	1	1	1	0	0	1	9	24	0	9	.450	.522	.450	.972	.250	.000	.321	8.33	4.17	0.50	0.00
Tot:	College (1 yrs)		College						14	20	3	9	0	0	0	2	3	0	2	1	1	1	0	0	1	9	24	0	9	.450	.522	.450	.972	.250	.000	.474	8.33	4.17	0.50
Avg:	College - 162 game avg		College						162	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒	🔒

TBC+ Metric is based on wOBA with inclusion of stolen base value. TBC's version of wOBA excludes park factors and uses static coefficients across all levels and years for ease of implementation.
* indicates player had a low sample size of plate appearances.

Use the Compare Players (TBC PREMIUM) application to compare stats and biography for 2-25 players at a time!
College Summer Stats are not set to Merge in this grid. (PREMIUM Feature)

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