Prep Baseball Report
Collin Grosenheider
Collin Grosenheider
Collin Grosenheider
Collin Grosenheider

CLASS OF 2027

SS
RHP

Collin
Grosenheider

Williamsville (HS) • IL
6' 0" • 166.5LBS
R/R • 17yr 11mo
Travel Team: Rhino Black
2027 National

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2027 State

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Best of Snapshot
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Best Of Stats

Hitting
22
Hand Speed (max)
8/03/26
70.1
Bat Speed (max)
8/03/26
14.9
Rot. Acc (max)
8/03/26
50
Hard Hit %
8/03/26
Power
95
Exit Velocity (max)
8/03/26
88.8
Exit Velocity (avg)
8/05/25
362
Distance (max)
8/05/25
60
Sweet Spot %
8/03/26
Run
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
Defense
87
INF Velo
8/03/26
-
OF Velo
-
C Velo
-
Pop Time
Pitching

Fastball

86
Velocity (max)
8/03/26
83.3 - 85.1
Velo Range
8/03/26
2119
Spin Rate (avg)
8/03/26

Changeup

75 - 79
Velo Range
8/05/25
1991
Spin Rate (avg)
8/03/26

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

Game Performance

Notes

Comments

8/29/26
Verbally committed to Kankakee JC.
8/05/25

RHP Collin Grosenheider (Williamsville, 2027) is a wiry, 6-foot, 161-pound frame, giving a good, high-paced look on the mound. Working through two innings, the right-hander struck out one and allowed only two hits. Working from a high pace, rocker motion, working downhill, the arm works from a ¾ slot, working quick and loose. Grosenheider showed a three-pitch mix: the fastball was sitting mid-80s with cutting action, the slider was mid-70s with a late break gyro shape, and the changeup was upper-70s with a similar profile to the fastball. The right-hander was not afraid to attack and fill up the zone, leading to contact outs with a high pace on the mound.

8/05/25

Positional Profile: SS/RHP
Body: 5-11.6, 161.2-pounds. Compact build with noticeable strength throughout.
Hit: RHH. Static setup, short/simple stride, utilizes lower-half. Uphill path, creates leverage, generates loft on the ball, works both gaps. 66.7 mph bat speed with 11g of rotational acceleration.
Power: 95 mph max exit velocity (88.8 avg.); 362-foot max batted distance.
Arm: RH. INF - 85 mph. Longer, loose arm action, 3/4 slot.
Defense: Works around the ball, smooth, two-hand gather into his body, short shuffle step to target.
Athletic Testing: 7.11 runner in the 60-yard dash; 23.80-inch max vertical jump.
Vizual Edge: 80.3 Edge Score.

Delivery: Works with pace, rocker motion, high leg kick into balance point, works downhill.
Arm Action: RH. Long, loose, quick arm from a 3/4 slot.
FB: T86, 83-85 mph. Firm with slight cut. T2264, 2020 average rpm.
SL: 73-75 mph. True gyro shape, with late break. T1933, 1849 average rpm.
CH: 75-79 mph. Similar shape to FB. T1850, 1596 average rpm.

7/23/25

Standing in at a wiry 5-foot-11, 157-pound frame with room for added strength, Grosenheider showed clean actions up the middle all weekend. Offensively, the right-handed hitter featured a balanced setup with a short toe-tap stride, displaying direct hands that worked into a level path. He found the barrel for a bases-clearing double to right-center field in Saturday’s 9-1 win, finishing 1-for-2 on the day with three RBIs and a walk. Defensively, Grosenheider showed a steady glove, with a strong arm, and multiple smooth double play turns.

4/12/25

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.

3/01/25

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.

3/01/25

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.

6/19/24

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

2/21/24

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.

2/21/24

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.

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