Prep Baseball Report

Eau Claire Preseason ID: Pitcher Data Dive


By. Josh Fields
Area Scout, Data Coordinator

On Feb. 10th, the Prep Baseball Wisconsin staff hosted the Eau Claire Preseason ID at Valley Sports Academy in Eau Claire, WI. Around 30 players participated in a pro-style workout, gathering unrivaled access to data through our state-of-the-art tech partners, as well as in-depth scouting analysis from our Prep Baseball Wisconsin staff.

Yesterday, we looked at the top measurable data performers from the event, found in our Statistical Analysis, where we broke down the stat leaders from the more traditional categories. Today, we will take a further in-depth look at the top positional prospects with the help from our tech partnerships, broken down by the categories down below:

TRACKMAN

FASTBALL

VELOCITY (MAX)

Rank Name State School Class Pos Velocity (max)
1 Bennett Stokke WI Altoona 2025 RHP 89.2 mph
2 Cole OBrien WI DC Everest 2025 RHP 88.2 mph
3 Ethan Oatman WI Mosinee 2025 RHP 85.2 mph
4 Kellen Smith WI Altoona 2025 SS 84.1 mph
5 Brady Johnson WI Eau Claire Memorial 2025 RHP 83.7 mph

Max Fastball Velocity: This metric calculates the speed of the pitch as it’s released from the pitcher’s hand.

SPIN RATE (AVG.)

Rank Name State School Class Pos Spin Rate (avg)
1 Ethan Oatman WI Mosinee 2025 RHP 2281 rpm
2 Bennett Stokke WI Altoona 2025 RHP 2245 rpm
3 Clayton Kroschel WI Wayland Academy 2025 OF 2211 rpm
4 Cage Sorenson WI Menomonie 2025 3B 2199 rpm
5 Ethan Dillingham WI Wis Rapids Lincoln 2026 RHP 2152 rpm

Spin Rate: This metric calculates the rate of spin on the baseball as it leaves the pitcher’s hand, measured in revolutions per minute (rpm). Historical data shows that high-spin fastballs lessen the impact of gravity, allowing for more ‘rise’ (or less fall, in other words) as it carries through the zone. Low-spin fastballs typically indicate the pitch has greater horizontal action, often making it tougher to square up, but generally easier to make contact with, leading to more ground balls, while high-spin fastballs show a correlation with swings and misses.

INDUCED VERTICAL BREAK (AVG.)

Rank Name State School Class Pos IVB (avg)
1 Clayton Kroschel WI Wayland Academy 2025 OF 20.8 in
2 Kellen Smith WI Altoona 2025 SS 19.9 in
3 Ethan Jeffers WI River Falls 2026 3B 19.4 in
4 Ethan Dillingham WI Wis Rapids Lincoln 2026 RHP 18.3 in
5 Brady Johnson WI Eau Claire Memorial 2025 RHP 17.0 in

Induced Vertical Break: Used in short form as "IVB," this metric is most important on fastballs for creating rise and on curveballs for creating depth – it can also have some use when measuring sliders and cutters as well. Sliders tend to be closer to zero inches while cutters are generally between 5 and 15 inches. Usually fastballs and curveballs with large IVB have higher spin efficiencies as well. Sliders generally have very little (closer to zero) IVB and very low spin efficiencies. You could also categorize IVB into spin rate as this is part of the “useful movement” you’re looking for. IVB is also a huge part of vertical approach angle.

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Blake Bugher WI Eau Claire Memorial 2025 SS 14.8
2 Drew Warren WI Lakeland Union 2027 LHP -14.1
3 Bennett Stokke WI Altoona 2025 RHP 13.7
4 Brady Johnson WI Eau Claire Memorial 2025 RHP 13.5
5 Alex Johnson WI Eau Claire Memorial 2027 RHP 12.1

Horizontal Break: Outlined on TrackMan’s own website: “... horizontal movement is measured in inches between where the pitch actually crosses the front of home plate side-wise, and where it would have crossed home plate side-wise if had it traveled in a perfectly straight line from release. A positive number means the break was to the right from the pitcher’s perspective, while a negative number means the break was to the left from the pitcher’s perspective.”

STRIKE ZONE RATE%

Rank Name State School Class Pos Zone %
1 Bennett Stokke WI Altoona 2025 RHP 71 %
2 Brecken Boisvert WI Chippewa Falls 2025 LHP 66 %
3 Ethan Jeffers WI River Falls 2026 3B 62 %
4 Blake Bugher WI Eau Claire Memorial 2025 SS 57 %
5 Spencer Hautamaki WI Bruce High 2025 RHP 50 %


CURVEBALL

SPIN RATE (AVG.)

Rank Name State School Class Pos Spin Rate (avg)
1 Ethan Jeffers WI River Falls 2026 3B 2525 rpm
2 Ethan Dillingham WI Wis Rapids Lincoln 2026 RHP 2376 rpm
3 Kellen Smith WI Altoona 2025 SS 2348 rpm
4 Cage Sorenson WI Menomonie 2025 3B 2286 rpm
5 Cole OBrien WI DC Everest 2025 RHP 2181 rpm

INDUCED VERTICAL BREAK (AVG.)

Rank Name State School Class Pos IVB (avg)
1 Cage Sorenson WI Menomonie 2025 3B -9.8 in
2 Ethan Jeffers WI River Falls 2026 3B -9.7 in
3 Brecken Boisvert WI Chippewa Falls 2025 LHP -7.9 in
4 Brady Johnson WI Eau Claire Memorial 2025 RHP -7.5 in
5 Ethan Dillingham WI Wis Rapids Lincoln 2026 RHP -6.8 in

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Brady Johnson WI Eau Claire Memorial 2025 RHP -18.8
2 Ethan Dillingham WI Wis Rapids Lincoln 2026 RHP -16.2
3 Brecken Boisvert WI Chippewa Falls 2025 LHP 14.5
4 Cage Sorenson WI Menomonie 2025 3B -12.6
5 Ethan Sowieja WI Stanley-Boyd 2024 3B -11.5

STRIKE ZONE RATE%

Rank Name State School Class Pos Zone %
1 Cole OBrien WI DC Everest 2025 RHP 66 %
2 Logan Zinsmaster WI Eau Claire Memorial 2025 2B 60 %
3 Clayton Kroschel WI Wayland Academy 2025 OF 50 %


SLIDER

SPIN RATE (AVG.)

Rank Name State School Class Pos Spin Rate (avg)
1 Ethan Oatman WI Mosinee 2025 RHP 2483
2 Cage Sorenson WI Menomonie 2025 3B 2238

INDUCED VERTICAL BREAK (AVG.)

Rank Name State School Class Pos IVB (avg)
1 Alex Johnson WI Eau Claire Memorial 2027 RHP 7.8 in
2 Ethan Oatman WI Mosinee 2025 RHP -6.1 in

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos HM (avg)
1 Bennett Stokke WI Altoona 2025 RHP -19.4
2 Ethan Oatman WI Mosinee 2025 RHP -12.7

STRIKE ZONE RATE%

Rank Name State School Class Pos Zone %
1 Bennett Stokke WI Altoona 2025 RHP 60 %
^ Ethan Sowieja WI Stanley-Boyd 2024 3B 60 %
2 Cage Sorenson WI Menomonie 2025 3B 50 %
^ Ethan Oatman WI Mosinee 2025 RHP 50 %


CHANGEUP

HORIZONTAL MOVEMENT (AVG.)

Rank Name State School Class Pos IVB (avg)
1 Drew Warren WI Lakeland Union 2027 LHP 17.7 in
2 Spencer Hautamaki WI Bruce High 2025 RHP 15.9 in
3 Ethan Jeffers WI River Falls 2026 3B 15.4 in
4 Kellen Smith WI Altoona 2025 SS 14.7 in
5 Zach Konkel WI Mondovi 2027 RHP 14.2 in

STRIKE ZONE RATE%

Rank Name State School Class Pos Zone %
1 Ethan Oatman WI Mosinee 2025 RHP 100 %
2 Clayton Kroschel WI Wayland Academy 2025 OF 60 %

+ CLICK HERE for a look at the complete statistics from the event.

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