92.1
Velocity (max)
7/07/20
CLASS OF 2021
RHP
2B
Zach
Kempe
Notre Dame
St. Charles North (HS) • IL
6' 1" • 200LBS
R/R • 20yr 11mo
Travel Team: Pro Player Canes
St. Charles North (HS) • IL
6' 1" • 200LBS
R/R • 20yr 11mo
Travel Team: Pro Player Canes
Rankings
2021 National
Rankings available to Premium Subscriber
2021 State
Rankings available to Premium Subscriber
Commitment
Best Of Stats
Fastball
88 - 92
Velo Range
5/13/21
2371
Spin Rate (avg)
7/07/20
Curveball
75 - 79
Velo Range
7/15/20
-
Spin Rate (avg)
Slider
78 - 79
Velo Range
7/07/20
2843
Spin Rate (avg)
7/07/20
Positional Tools
Hitting
Hitting
Pitching
2020
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Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
92.1
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
90.7
Fastball
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
2371
Fastball
Spin Score Avg
The average Bauer Units value of all fastballs in the given event year. Bauer Units are calculated for each pitch by dividing Spin Rate by Velocity.
26.2
Fastball
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
78.2
Slider
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
2843
Slider
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
PBR ProCase - Midwest
Jul 7, 2020
Trackman - Fastball
92.1
Velocity (max)
89.9 - 91.6
Velo Range
89.8
Eff Velocity (avg)
2,484
Spin Rate (max)
2,371
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Slider
78.8
Velocity (max)
77.5 - 78.8
Velo Range
76.4
Eff Velocity (avg)
2,890
Spin Rate (max)
2,843
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Pitch Scores
2020
Fastball
Hop+
A fastball with hop has a flat approach angle and visually jumps through the zone. When thrown up in the zone, it is more likely to generate a higher swing and miss average. Hop+ of 100 is MLB average.
Fastball
Sink+
A fastball with sink has low backspin and drops through the strike zone. When thrown down in the zone, it is more likely to generate a higher ground ball percentage and lower launch angle. Sink+ of 100 is MLB average.
Fastball
Rise+
A fastball with rise has a high percentage of backspin. When thrown up in the zone, it is more likely to generate a higher fly ball percentage. Rise+ of 100 is MLB average
Pitching Velos
2021
2020
2019
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
92.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
90.0
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
75.0
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
92.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
89.0
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
77.0
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
78.5
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
87.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
86.0
Game Performance
Visual Edge
Pitch Ai
Notes
News
- DeMarco and Co. Get No. 7 St. Charles North Past Wheaton Warrenville South - Jun 4, 2021
- Week 5 Games - May 28, 2021
- No. 4 St. Charles North Takes Down St. Charles East in a Pitchers Duel - May 13, 2021
- 2021 ACC Recruiting Classes - Dec 3, 2020
- Midwest ProCase: Pitcher Analysis - Sep 11, 2020
- Illinois 2021 Rankings Updated - Sep 3, 2020
- PBR at The Rock 17U: Quick Hits Day 3 - Jul 25, 2020
- Hard90: PBR 17U National Championship - Jul 22, 2020
- Midwest-NorCal-SoCal Procases - Jul 15, 2020
- Midwest ProCase: Statistical Analysis - Jul 9, 2020
- Inside The Illinois Rankings: Top '21 Uncommitted RHP's - May 14, 2020
- Inside The Illinois Rankings: 2021 Newcomers - Sep 23, 2019
- 4A Super-Sectional: St. Charles North Out-Hits Plainfield Central, Advances To State - Jun 3, 2019
Comments
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Notre Dame commit, ranked No. 9 in the Illinois 2021 class. Athletic 6-foot-1 200-pound frame, strong lower-half. One of the premier right-handed arms in the state. Short and clean ¾ arm action, extremely quick arm and low effort throughout; ball jumps out of his hand. Easy, repeatable mechanics, drop and drive type delivery, strides in-line with the plate, minimal effort appearance. Started on the mound for Saint Charles North and tossed 5.1 innings while only allowing 1 hit and striking out 7. Kempe featured a fastball that sat 90-92 mph early on, settling in at 88-91 mph later in the game, with arm-side life, jump through the zone and feel for both sides of the plate. Featured a high-spinning, tight slider at 74-76 mph with sharp 10/4 action. Ability to throw it both for strikes and to put hitters away. Continues to prove he is one of the top arms in the state.
Verbally committed to Notre Dame.
Uncommitted entering the event, Kempe pitched his way to notoriety and much D1 interest shortly after the ProCase. At 6-foot, 180 pounds, he features a 90-92 mph fastball which spun up to 2,484 rpm and averaged 2,371. Kempe worked quickly with low effort via a compact circle to a three-quarter release point. As good as his fastball was, his hard curveball was even better. Sitting 77-78 mph, the breaker bit late and hard with tight spin, consistently in the 2,800s, topping at 2,890 rpm. Showing great depth and averaging -12.8 IVB and -11 HB it repeatedly induced swing/miss. He filled up the zone with both pitches and fielded his position well. Overall, Kempe was a huge “winner” at the event and has since committed to Notre Dame.