Eau Claire Preseason ID: Pitcher Data Dive
February 15, 2024
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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