84
Velocity (max)
3/03/24
CLASS OF 2026
RHP
Damian
Kosempa
Marquette University (HS) • WI
6' 1" • 185LBS
R/R • 16yr 1mo
Travel Team: PTA
6' 1" • 185LBS
R/R • 16yr 1mo
Travel Team: PTA
Rankings
2026 National
Rankings available to Premium Subscriber
2026 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
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Best Of Stats
Fastball
83 - 84
Velo Range
3/03/24
2135
Spin Rate (avg)
3/03/24
Changeup
75 - 77
Velo Range
3/03/24
1636
Spin Rate (avg)
3/03/24
Curveball
72 - 75
Velo Range
6/29/23
2158
Spin Rate (avg)
3/03/24
Slider
74 - 76
Velo Range
3/03/24
2313
Spin Rate (avg)
3/03/24
Positional Tools
Hitting
Hitting
Pitching
2024
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Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
83.8
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
83.1
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).
2135
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.
25.7
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).
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
71.8
Curveball
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).
2158
Curveball
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
76.0
Changeup
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).
1636
Changeup
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).
74.5
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).
2313
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).
South Milwaukee Preseason ID
Mar 3, 2024
Trackman - Fastball
83.8
Velocity (max)
82.5 - 83.6
Velo Range
81.4
Eff Velocity (avg)
2,188
Spin Rate (max)
2,135
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Curveball
73.0
Velocity (max)
70.9 - 72.7
Velo Range
69.1
Eff Velocity (avg)
2,229
Spin Rate (max)
2,158
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Slider
76.1
Velocity (max)
73.5 - 75.5
Velo Range
71.7
Eff Velocity (avg)
2,449
Spin Rate (max)
2,313
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - ChangeUp
77.1
Velocity (max)
75.1 - 77.0
Velo Range
75.2
Eff Velocity (avg)
1,758
Spin Rate (max)
1,636
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Pitch Scores
Pitching Velos
2024
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
84.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
83.5
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
72.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
76.0
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
Game Performance
Visual Edge
Pitch Ai
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Positional Profile: RHP
Body: 6-0, 175-pounds. Athletic build with good proportions and room to add to athletic frame.
Delivery: Controlled and deliberate leg lift, medium balance point, drop/drive lower-half, works in-line.
Arm Action: RH. Long arm out of the glove, 3/4 release.
FB: T84, 83-84 mph. Life out of the hand with some late running action. T2188, 2135 average rpm.
CB: 71-73 mph. Sharp, downer action, landed for strikes and beneath the zone. T2229, 2158 average rpm.
SL: 74-76 mph. Backed up on him at times, flashed sharp 10/4 action with late horizontal break. T2449, 2313 average rpm.
CH: 75-77 mph. Thrown with arm-speed, clean out of the hand with fading action, some feel around the bottom of the zone, rounds out 4 pitch mix starting pitcher repertoire. T1758, 1636 average rpm.
Kosempa gave an intriguing look on the mound on Thursday. Standing at a strong 6-foot, 175-pound frame, Kosempa presented above-average arm talent during his start. The fastball sat 79-82 T83 mph. Also showed a curveball in the low-70s that had sharp movement and flashed swing-and-miss potential. Kosempa is a raw mover on the mound that will be interesting to watch as he grows into his body. Final line: CG, 1ER, 1H, 9Ks.
Started at shortstop on Sunday, tallying a hard-hit double in two at-bats on the day. Has a strong swing that produces easy power. On the mound, he pitched 1.2 innings in relief with two strikeouts as well. Fastball topped at 81 mph, sitting 77-80 mph and flashed a hard breaking ball up to 75 mph. Has a quick arm on the mound with simple mechanics. Strong body with a thick lower half.
Kosempa dominated on the bump this afternoon. The RHP induced swing and miss all game with his two-pitch mix. The sidesaddle delivery is calm and works tall and fall. The arm works quick and out of a ¾ slot. Fastball sat 77-81 mph with ride through the zone. The breaking ball was sharp with slurve action, sitting 71-74 mph. Also flashed a change at 74 mph. Final line: CG, SHO, 5 IP, 3 H, 8 K.