Milwaukee Open: Pitcher Data Dive
June 23, 2023
On Tuesday, June 13th the PBR Wisconsin team hosted the Milwaukee Open at The Rock in Franklin, WI. This open event was for all high school classes (2024-27), and gave our staff a chance to get a look at 30+ uncommitted prospects before the summer gets into full swing.
For a closer look at the showcase details and the technologies we'll have on-site to assist our in-person evaluation for all in attendance, click here. For a complete look at those registered to attend this event, view the most up-to-date version of the roster by clicking here.
Thursday, we published our Quick Hits. Today, we published 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 pitchers with the help of our tech partnerships, broken down by the categories down below:
TRACKMAN
FASTBALL
VELOCITY (MAX)
Rank
Name
State
School
Class
Pos
Velocity (max)
1
Rocco Conrad
WI
New Berlin West Middle/High
2025
RHP
86.8 mph
2
Sawyer Conradt
SC
P27
2025
RHP
85.1 mph
3
Paulson Yesbeck
WI
Elkhorn
2025
RHP
84.9 mph
4
Montgomery O'Brien
WI
Wauwatosa East
2026
LHP
80.1 mph
5
Ben Mills
WI
Oak Creek
2025
RHP
79.2 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
Benjamin Wellentin
WI
Arrowhead
2025
RHP
2172 rpm
2
Paulson Yesbeck
WI
Elkhorn
2025
RHP
2093 rpm
3
Rocco Conrad
WI
New Berlin West Middle/High
2025
RHP
2090 rpm
4
Ben Mills
WI
Oak Creek
2025
RHP
2074 rpm
5
Zaidan Eblin
WI
Waterford Union
2025
RHP
2059 rpm
6
Sawyer Conradt
SC
P27
2025
RHP
2042 rpm
7
Carson Young
IL
Antioch
2025
RHP
2041 rpm
8
Montgomery O'Brien
WI
Wauwatosa East
2026
LHP
2017 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
Rocco Conrad
WI
New Berlin West Middle/High
2025
RHP
18.5 in
2
Carson Young
IL
Antioch
2025
RHP
15.0 in
3
Ben Mills
WI
Oak Creek
2025
RHP
14.0 in
4
Paulson Yesbeck
WI
Elkhorn
2025
RHP
12.1 in
5
Sawyer Conradt
SC
P27
2025
RHP
12.0 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 efficiency. 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 the vertical approach angle.
HORIZONTAL MOVEMENT (AVG.)
Rank
Name
State
School
Class
Pos
HM (avg)
1
Jack Majerowski
IL
Antioch
2025
RHP
14.7
2
Owen Borkowski
WI
Oconomowoc
2024
LHP
-14.3
3
Sawyer Conradt
SC
P27
2025
RHP
12.8
4
Montgomery O'Brien
WI
Wauwatosa East
2026
LHP
-11.5
5
Carson Young
IL
Antioch
2025
RHP
10.2
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
Rocco Conrad
WI
New Berlin West Middle/High
2025
RHP
85 %
2
Montgomery O'Brien
WI
Wauwatosa East
2026
LHP
66 %
^
Zaidan Eblin
WI
Waterford Union
2025
RHP
66 %
3
Carson Young
IL
Antioch
2025
RHP
60 %
Average MLB pitchers throw 62% strikes, and better pitchers throw strikes 65% of the time, or roughly 2:1 strikes to balls.
CURVEBALL
SPIN RATE (AVG.)
Rank
Name
State
School
Class
Pos
Spin Rate (avg)
1
Carson Young
IL
Antioch
2025
RHP
2357 rpm
2
Zaidan Eblin
WI
Waterford Union
2025
RHP
2346 rpm
INDUCED VERTICAL BREAK (AVG.)
Rank
Name
State
School
Class
Pos
IVB (avg)
1
Ben Mills
WI
Oak Creek
2025
RHP
-10.8 in
2
Weston Hotopp
WI
Waterford Union
2025
C
-8.3 in
HORIZONTAL MOVEMENT (AVG.)
Rank
Name
State
School
Class
Pos
HM (avg)
1
Zaidan Eblin
WI
Waterford Union
2025
RHP
-15.4
2
Weston Hotopp
WI
Waterford Union
2025
C
-12.1
STRIKE ZONE RATE%
Rank
Name
State
School
Class
Pos
Zone %
1
Weston Hotopp
WI
Waterford Union
2025
C
75 %
^
Montgomery O'Brien
WI
Wauwatosa East
2026
LHP
75 %
SLIDER
SPIN RATE (AVG.)
Rank
Name
State
School
Class
Pos
Spin Rate (avg)
1
Carson Young
IL
Antioch
2025
RHP
2058
2
Montgomery O'Brien
WI
Wauwatosa East
2026
LHP
1996
3
Paulson Yesbeck
WI
Elkhorn
2025
RHP
1968
4
Sawyer Conradt
SC
P27
2025
RHP
1960
5
Weston Hotopp
WI
Waterford Union
2025
C
1919
INDUCED VERTICAL BREAK (AVG.)
Rank
Name
State
School
Class
Pos
IVB (avg)
1
Carson Young
IL
Antioch
2025
RHP
12.5 in
2
Weston Hotopp
WI
Waterford Union
2025
C
-7.5 in
3
Rocco Conrad
WI
New Berlin West Middle/High
2025
RHP
6.5 in
HORIZONTAL MOVEMENT (AVG.)
Rank
Name
State
School
Class
Pos
HM (avg)
1
Weston Hotopp
WI
Waterford Union
2025
C
-8.3
2
Benjamin Wellentin
WI
Arrowhead
2025
RHP
-8.2
3
Paulson Yesbeck
WI
Elkhorn
2025
RHP
-8.1
STRIKE ZONE RATE%
Rank
Name
State
School
Class
Pos
Zone %
1
Paulson Yesbeck
WI
Elkhorn
2025
RHP
80 %
2
Benjamin Wellentin
WI
Arrowhead
2025
RHP
60 %
3
Carson Young
IL
Antioch
2025
RHP
50 %
^
Weston Hotopp
WI
Waterford Union
2025
C
50 %
CHANGEUP
HORIZONTAL MOVEMENT (AVG.)
Rank
Name
State
School
Class
Pos
Spin Rate (avg)
1
Carson Young
IL
Antioch
2025
RHP
1908 rpm
2
Ben Mills
WI
Oak Creek
2025
RHP
1858 rpm
3
Jack Majerowski
IL
Antioch
2025
RHP
1698 rpm
4
Owen Borkowski
WI
Oconomowoc
2024
LHP
1680 rpm
5
Sawyer Conradt
SC
P27
2025
RHP
1664 rpm
STRIKE ZONE RATE%
Rank
Name
State
School
Class
Pos
Zone %
1
Owen Borkowski
WI
Oconomowoc
2024
LHP
80 %
2
Paulson Yesbeck
WI
Elkhorn
2025
RHP
75 %
^
Jack Majerowski
IL
Antioch
2025
RHP
75 %
3
Weston Hotopp
WI
Waterford Union
2025
C
50 %
+ CLICK HERE for a look at the complete statistics from the event.
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