Prep Baseball Report

CLASS OF 2023

RHP

Kolbie
Stellpflug

Rhode Island College
Somerville (HS) • NJ
6' 1" • 170LBS
R/R • 19yr 3mo
Travel Team: Diamond Jack Super

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2023 National

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2023 State

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Best of Snapshot
Positional Tools Velos / Pop
TrackMan Pitching
Pitch Scores
Pitching Velos
Comments
Contact

Best Of Stats

Pitching

Fastball

83
Velocity (max)
2/20/22
82 - 83
Velo Range
2/20/22
2004
Spin Rate (avg)
7/05/20

Changeup

76.3 - 77
Velo Range
2/20/22
1444
Spin Rate (avg)
6/19/21

Curveball

70.5 - 71.1
Velo Range
7/05/20
1891
Spin Rate (avg)
7/05/20
Power
72
Exit Velocity (max)
8/03/19
-
Exit Velocity (avg)
-
Distance (max)
-
Sweet Spot %
Run
7.5
60
8/03/19
-
30-yd
-
10-yd
-
Run speed (max)
Defense
-
INF Velo
71
OF Velo
8/03/19
-
C Velo
-
Pop Time

Positional Tools

2019
60 Yard Dash
7.50
Outfield Velocity
71.0
Power / Speed Score
9.6
Junior Future Games
Aug 3, 2019
Position
7.50
60-yard
71
OF Velo
72
Exit Velo

Hitting

Hitting

Pitching

2022
2021
2020
Fastball
Velocity Max
82.8
Fastball
Velocity Avg
82.1
Fastball
Spin Rate Avg
1859
Fastball
Spin Score Avg
22.6
Fastball
Total Movement Avg
Curveball
Velocity Avg
69.0
Curveball
Spin Rate Avg
1094
Curveball
Total Movement Avg
Changeup
Velocity Avg
76.6
Changeup
Spin Rate Avg
1379
Changeup
Total Movement Avg
Fastball
Velocity Max
81.6
Fastball
Velocity Avg
80.9
Fastball
Spin Rate Avg
1896
Fastball
Spin Score Avg
23.4
Fastball
Total Movement Avg
Curveball
Velocity Avg
68.1
Curveball
Spin Rate Avg
1748
Curveball
Total Movement Avg
Changeup
Velocity Avg
73.7
Changeup
Spin Rate Avg
1444
Changeup
Total Movement Avg
Fastball
Velocity Max
81.2
Fastball
Velocity Avg
78.9
Fastball
Spin Rate Avg
1973
Fastball
Spin Score Avg
25.0
Fastball
Total Movement Avg
Curveball
Velocity Avg
69.4
Curveball
Spin Rate Avg
1742
Curveball
Total Movement Avg
Scout Day: Diamond Jacks 2.20.22
Feb 20, 2022
Trackman - Fastball
82.8
Velocity (max)
81.5 - 82.8
Velo Range
81.1
Eff Velocity (avg)
2,067
Spin Rate (max)
1,859
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Curveball
69.5
Velocity (max)
68.6 - 69.5
Velo Range
68.5
Eff Velocity (avg)
1,211
Spin Rate (max)
1,094
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
77.2
Velocity (max)
76.3 - 77.0
Velo Range
75.9
Eff Velocity (avg)
1,540
Spin Rate (max)
1,379
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
2021 Underclass State Games (2023 Grads)
Jun 19, 2021
Trackman - Fastball
81.6
Velocity (max)
80.5 - 81.3
Velo Range
86.4
Eff Velocity (avg)
1,998
Spin Rate (max)
1,896
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Curveball
69.6
Velocity (max)
67.3 - 69.0
Velo Range
72.7
Eff Velocity (avg)
1,944
Spin Rate (max)
1,748
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
74.3
Velocity (max)
73.2 - 74.2
Velo Range
79.6
Eff Velocity (avg)
1,551
Spin Rate (max)
1,444
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
2020 Fall Underclass Games (2023-2024)
Oct 11, 2020
Trackman - Fastball
79.2
Velocity (max)
77.6 - 78.7
Velo Range
76.5
Eff Velocity (avg)
2,034
Spin Rate (max)
1,945
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Curveball
70.1
Velocity (max)
67.7 - 69.8
Velo Range
65.9
Eff Velocity (avg)
1,773
Spin Rate (max)
1,667
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
2020 NJ Future Games Select (Session I)
Jul 5, 2020
Trackman - Fastball
81.2
Velocity (max)
78.9 - 80.6
Velo Range
77.8
Eff Velocity (avg)
2,087
Spin Rate (max)
1,999
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Curveball
71.1
Velocity (max)
70.5 - 71.1
Velo Range
68.7
Eff Velocity (avg)
1,902
Spin Rate (max)
1,891
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %

Pitch Scores

2022
2020
Fastball
Hop+
Fastball
Sink+
Fastball
Rise+
Curveball
Hammer+
Curveball
Sweep+
Fastball
Hop+
Fastball
Sink+
Fastball
Rise+
Curveball
Hammer+
Curveball
Sweep+
Scout Day: Diamond Jacks 2.20.22
Feb 20, 2022
Pitch Scores - Fastball
Hop+
Rise+
Sink+
Pitch Scores - Curveball
Hammer+
Sweep+
2020 Fall Underclass Games (2023-2024)
Oct 11, 2020
Pitch Scores - Fastball
Hop+
Rise+
Sink+
Pitch Scores - Curveball
Hammer+
Sweep+
2020 NJ Future Games Select (Session I)
Jul 5, 2020
Pitch Scores - Fastball
Hop+
Rise+
Sink+
Pitch Scores - Curveball
Hammer+
Sweep+

Pitching Velos

2022
2021
2020
Fastball
Velocity Max
83.0
Fastball
Velocity Avg
82.5
Curveball
Velocity Avg
68.5
Changeup
Velocity Avg
76.5
Fastball
Velocity Max
82.0
Fastball
Velocity Avg
81.5
Curveball
Velocity Avg
68.0
Changeup
Velocity Avg
74.5
Fastball
Velocity Max
81.0
Fastball
Velocity Avg
77.7
Curveball
Velocity Avg
68.5
Scout Day: Diamond Jacks 2.20.22
Feb 20, 2022
Pitching
83
Max FB
82 - 83
FB
68 - 69
CB
76 - 77
CH
2021 Underclass State Games (2023 Grads)
Jun 19, 2021
Pitching
82
Max FB
81 - 82
FB
67 - 69
CB
74 - 75
CH
2020 Fall Underclass Games (2023-2024)
Oct 11, 2020
Pitching
79
Max FB
77 - 79
FB
68 - 70
CB
2020 NJ Future Games Select (Session I)
Jul 5, 2020
Pitching
81
Max FB
79 - 81
FB
70 - 71
CB
2020 Future Games Trials (SOLD OUT)
Feb 16, 2020
Pitching
76
Max FB
74 - 76
FB
64 - 68
CB
68 - 70
CH

Game Performance

Visual Edge

Pitch Ai

Notes

News

Comments

6/19/21

Tall, projectable frame at 6-foot-1, 170-pounds. Starts tall on the mound in the middle of the rubber. Segmented actions in his delivery. Hands stay locked in position until his leg kick. Aggressive frontside helps create hip/shoulder separation. Stride direction stays in line. Compact arm action. High arm slot. FB was located down in the zone 81-82 MPH. CB had 11/5 shape, sharp at times, was 70-71 MPH. Displayed a CH at 74-75 MPH.

7/05/20

6-foot, 158-pound lanky frame. Projectable on the mound, showed quick arm speed with a high ¾ arm angle and a compact arm action. Uses easy effort in his delivery. Showed tall balance point with even shoulders. Lands square. Produced a fastball that came in at 79-81 mph and topped out at 81 mph; showed arm side control and sinking action. His 11/5 curveball (70-71) showed glove side command and tight action.

2/16/20

6-foot, 158-pound lean frame. On the mound, he showed some arm speed, had a long, easy arm action with an high-3/4 angle. He is a tall-and-fall type. Has even shoulders and a tall balance point off the mound. Lands closed. Sat with his fastball at 74-76 mph with a max of 76 mph, shows command of fastball in the zone. Had consistent command on his changeup (68-70) with some armside fade. Threw a 10/4 curveball (64-68) for strikes. Projectable frame, expect velocity to jump as he continues to get stronger.

Draft Reports

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