@CollinGros70860 20
Hand Speed (max)
3/01/25
CLASS OF 2027
SS
RHP
Collin
Grosenheider
Williamsville (HS) • IL
6' 0" • 161.2LBS
R/R • 16yr 10mo
Travel Team: Rhino Roberts
6' 0" • 161.2LBSR/R • 16yr 10mo
Travel Team: Rhino Roberts
Rankings
2027 National
Rankings available to Premium Subscriber
2027 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
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Best Of Stats
69.8
Bat Speed (max)
3/01/25
12.4
Rot. Acc (max)
8/05/25
50
Hard Hit %
8/05/25
94.6
Exit Velocity (max)
8/05/25
88.8
Exit Velocity (avg)
8/05/25
362
Distance (max)
8/05/25
50
Sweet Spot %
2/21/24
7.11
60-yd
8/05/25
3.90
30-yd
8/05/25
1.65
10-yd
8/05/25
19.1
Run speed (max)
8/05/25
87
INF Velo
3/01/25
-
OF Velo
-
C Velo
-
Pop Time
Fastball
86
Velocity (max)
8/05/25
82.7 - 85.1
Velo Range
8/05/25
2020
Spin Rate (avg)
8/05/25
Changeup
75 - 79
Velo Range
8/05/25
1779
Spin Rate (avg)
3/01/25
Curveball
70 - 71
Velo Range
3/01/25
2064
Spin Rate (avg)
3/01/25
Slider
76 - 77
Velo Range
3/01/25
2176
Spin Rate (avg)
3/01/25
Positional Tools
2025
2024
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60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.11
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
87.0
Power / Speed Score
A simple calculation that divides the athlete’s Exit Velocity Max by the athlete’s 60 Yard Dash time for the given event year. For example, 98 MPH / 7.00s = 14.00.
13.3
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.57
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
80.0
Power / Speed Score
A simple calculation that divides the athlete’s Exit Velocity Max by the athlete’s 60 Yard Dash time for the given event year. For example, 98 MPH / 7.00s = 14.00.
10.8
Hitting
2025
2024
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
94.6
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
82.4
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
362
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
164
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
13.9721
Hard Hit %
Percentage of batted balls with exit velocities over 95 MPH in the given event year.
Sweet Spot %
Percentage of batted balls in the given event year with a launch angle between 8° and 32°.
Line Drive %
Percentage of batted balls with launch angles between 10 and 25 degrees in the given event year.
Fly Ball %
Percentage of batted balls with launch angles between 25 and 50 degrees in the given event year.
Ground Ball %
Percentage of batted balls with launch angles below 10 degrees in the given event year.
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
81.8
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
74.6
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
242
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
132
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
14.9726
Hard Hit %
Percentage of batted balls with exit velocities over 95 MPH in the given event year.
Sweet Spot %
Percentage of batted balls in the given event year with a launch angle between 8° and 32°.
Line Drive %
Percentage of batted balls with launch angles between 10 and 25 degrees in the given event year.
Fly Ball %
Percentage of batted balls with launch angles between 25 and 50 degrees in the given event year.
Ground Ball %
Percentage of batted balls with launch angles below 10 degrees in the given event year.
Illinois State Games (Invite-Only)
Aug 5, 2025
Trackman - Hitting
94.6
Exit Velocity (max)
88.8
Exit Velocity (avg)
211
Distance (avg)
362
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Preseason All-State: Underclass (Invite-Only)
Mar 1, 2025
Trackman - Hitting
92.0
Exit Velocity (max)
77.1
Exit Velocity (avg)
121
Distance (avg)
327
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Peoria Preseason ID
Feb 21, 2024
Trackman - Hitting
81.8
Exit Velocity (max)
74.6
Exit Velocity (avg)
132
Distance (avg)
242
Distance (max)
Sweet Spot %
Line Drive %
Ground Ball %
Hitting
2025
2024
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
20.0
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
18.4
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
69.8
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
66.5
Rotational Acceleration Max
The highest Rotational Acceleration of any swing in the given event year.
Rotational Acceleration Avg
The average Rotational Acceleration for all swings in the given event year.
On-Plane Efficiency Max
The highest On-Plane Efficiency of any swing in the given event year.
On-Plane Efficiency Avg
The average On-Plane Efficiency for all swings in the given event year.
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
18.4
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
17.7
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
66.2
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
63.6
Rotational Acceleration Max
The highest Rotational Acceleration of any swing in the given event year.
Rotational Acceleration Avg
The average Rotational Acceleration for all swings in the given event year.
On-Plane Efficiency Max
The highest On-Plane Efficiency of any swing in the given event year.
On-Plane Efficiency Avg
The average On-Plane Efficiency for all swings in the given event year.
Illinois State Games (Invite-Only)
Aug 5, 2025
Blast - Hitting
18.2
Hand Speed (max)
17.4
Hand Speed (avg)
67.8
Bat Speed (max)
66.7
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Preseason All-State: Underclass (Invite-Only)
Mar 1, 2025
Blast - Hitting
20.0
Hand Speed (max)
19.0
Hand Speed (avg)
69.8
Bat Speed (max)
66.4
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Peoria Preseason ID
Feb 21, 2024
Blast - Hitting
18.4
Hand Speed (max)
17.7
Hand Speed (avg)
66.2
Bat Speed (max)
63.6
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2025
2024
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
85.8
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
83.9
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).
1984
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.
23.7
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).
70.3
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).
2064
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).
76.1
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).
1698
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).
75.1
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).
1989
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).
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
79.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
78.1
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).
1882
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.
24.1
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).
61.5
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).
1652
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).
67.3
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).
1628
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).
Illinois State Games (Invite-Only)
Aug 5, 2025
Trackman - Fastball
85.8
Velocity (max)
82.7 - 85.1
Velo Range
81.9
Eff Velocity (avg)
2,264
Spin Rate (max)
2,020
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
75.5
Velocity (max)
73.0 - 75.2
Velo Range
71.5
Eff Velocity (avg)
1,933
Spin Rate (max)
1,849
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - ChangeUp
78.7
Velocity (max)
75.5 - 78.5
Velo Range
74.5
Eff Velocity (avg)
1,850
Spin Rate (max)
1,596
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Preseason All-State: Underclass (Invite-Only)
Mar 1, 2025
Trackman - Fastball
84.4
Velocity (max)
83.5 - 84.2
Velo Range
82.9
Eff Velocity (avg)
2,053
Spin Rate (max)
1,920
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
70.6
Velocity (max)
70.1 - 70.5
Velo Range
69.2
Eff Velocity (avg)
2,102
Spin Rate (max)
2,064
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Slider
77.0
Velocity (max)
75.9 - 76.9
Velo Range
75.2
Eff Velocity (avg)
2,185
Spin Rate (max)
2,176
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
76.8
Velocity (max)
74.9 - 76.2
Velo Range
75.0
Eff Velocity (avg)
1,959
Spin Rate (max)
1,779
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Peoria Preseason ID
Feb 21, 2024
Trackman - Fastball
79.0
Velocity (max)
77.4 - 78.9
Velo Range
77.5
Eff Velocity (avg)
2,010
Spin Rate (max)
1,882
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
63.8
Velocity (max)
60.2 - 62.8
Velo Range
60.5
Eff Velocity (avg)
1,838
Spin Rate (max)
1,652
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - ChangeUp
69.9
Velocity (max)
65.6 - 69.1
Velo Range
67.4
Eff Velocity (avg)
1,843
Spin Rate (max)
1,628
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
2025
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
2025
2024
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
86.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
83.8
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
76.2
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
75.2
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
81.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
78.8
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
64.5
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
67.5
Game Performance
2024
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.77
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.57
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
Vertical Jump
A measure of any athlete's body strength and reach calculated from the flight time divided by the contact time.
2025
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.65
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
3.9
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.11
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
Vertical Jump
A measure of any athlete's body strength and reach calculated from the flight time divided by the contact time.
Vizual Edge
2025
2024
Edge Score
The highest Edge Score within the given year. Edge Score is a comprehensive score that takes the core-six visual skills into account, providing an assessment of an athlete’s overall visual ability.
80.3
Edge Score
The highest Edge Score within the given year. Edge Score is a comprehensive score that takes the core-six visual skills into account, providing an assessment of an athlete’s overall visual ability.
75.42
Pitch Ai
Notes
News
- Preseason All-State Underclass: Pitcher Analysis - Jun 6, 2025
- Preseason All-State Underclass: Infielder Analysis - Jun 5, 2025
- Week 4 Games - Apr 15, 2025
- 2025 Preseason All-State, Underclass: Statistical Analysis - Mar 4, 2025
- Rock Summer Championship 15U: Takeaways - Jun 19, 2024
- Peoria Preseason ID: Pitcher Analysis - May 11, 2024
- Peoria Preseason ID: Position Player Analysis - May 10, 2024
Comments
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Physical
2025
2024
Grip Strgth (LH)
Grip strength is a measure of a players bat control and ability to transfer power and speed during impact, measured in pounds of force generated; collected with elbow bent at 90 degrees.
Grip Strgth (RH)
Grip strength is a measure of a players bat control and ability to transfer power and speed during impact, measured in pounds of force generated; collected with elbow bent at 90 degrees.
Grip Strgth (LH)
Grip strength is a measure of a players bat control and ability to transfer power and speed during impact, measured in pounds of force generated; collected with elbow bent at 90 degrees.
Grip Strgth (RH)
Grip strength is a measure of a players bat control and ability to transfer power and speed during impact, measured in pounds of force generated; collected with elbow bent at 90 degrees.
Uncommitted. Athletic 5-foot-11, 157-pound frame with room to add strength. Started at third and hit out of the three-hole. Grosenheider stuck out as an upside prospect Saturday morning. Right-handed hitter that operates with a wide stance and a toe-tap. Was able to leg-out a fielder's choice and then pick up a steal right after to show off his wheels. Was a smooth operator at third with a strong arm. Showed the ability to be an advanced fielder on the left-side of the infield.
Positional Profile: SS/RHP
Body: 6-1, 160 pounds. Long-levered frame.
Hit: RHH. Wide, crouched setup, minimal leg lift and stride. Longer and flat swing through the zone, looks to elevate the ball. 66.4 mph bat speed with 7g of rotational acceleration.
Power: 92 mph max exit velocity (77.1 avg.).
Arm: RH. INF - 87 mph. Full arm action, high ¾ slot.
Defense: Steady feet, two-hand funnel into body, shuffle step to target.
Athletic Testing: 7.22 runner in the 60-yard dash; 24.60-inch max vertical jump.
Vizual Edge: 69.06 Edge Score.
Positional Profile: SS/RHP
Body: 6-1, 160-pounds. Long-levered frame.
Delivery: High leg lift with tuck and coil, drop/drive down the mound.
Arm Action: RH. Longer arm action in the back, quick, 3/4 slot.
FB: T84, 83-84 mph. Clean out of the hand, plays straight. T2053, 1920 average rpm.
CB: 70-71 mph. 11/5 shape, depth with feel. T2102, 2064 average rpm.
SL: 76-77 mph. Similar action as CB, short action with depth. T2185, 2176 average rpm.
CH: 75-76 mph. Confident, fade action. T1959, 1779 average rpm.
Grosenheider, presenting a wiry 6-foot, 145-pound frame, had an outstanding day on the mound Sunday tossing seven efficient innings for a complete game win. He maintained velocity throughout the game as he started and finished his outing throwing his fastball at 78-81 mph, and his curveball ranged from 66-69 mph with 11/5 movement. Mechanically, he demonstrated repeatability with his motion and threw consistent strikes throughout the game with a 65% strike percentage. His loose ¾ arm action also showcased strong potential as well. An overall impressive game for the right-hander. Final Statline: CG, 7.0 IP, 3 H, 1 R, 0 ER, 2 BB 9 K
Positional Profile: RHP
Body: 6-0, 145-pounds. Wiry build, long levers
Hit: RHH. Wide base, short stride, gets foot down early. Downhill path, looks to work on top of the baseball. 63.6 mph bat speed with 6 G’s of rotational acceleration.
Power: 82 max exit velocity, averaged 74.6 mph. 242’ max distance.
Arm: RH. INF - 80 mph. Long, loose arm path, 3/4 slot.
Defense: Two-hand gather, fields ball to body, clean transfer, moves well up the middle.
Run: 7.57 runner in the 60.
Positional Profile: RHP
Delivery: High leg lift with tuck and coil, drop/drive delivery, works in-line.
Arm Action: RH. Long arm path, clean, 3/4 slot.
FB: T79, 77-79 mph. Plays with some ride through the zone, clean out of the hand. T2010, 1882 average rpm.
CB: 60-63 mph. 12/6 shape with downer action at times, showed feel. T1838, 1652 average rpm.
CH: 66-69 mph. Cuts at times, developing. T1843, 1628 average rpm.