Prep Baseball Report

CLASS OF 2026

RHP

Kellen
Thomson

Center Grove (HS) • IN
6' 4" • 205LBS
R/R • 17yr 1mo
Travel Team: Top Tier Indiana American 16U
2026 National

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2026 State

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Best Of Stats

Pitching

Fastball

89
Velocity (max)
3/03/24
88 - 89
Velo Range
3/03/24
2104
Spin Rate (avg)
3/05/23

Changeup

80 - 81
Velo Range
3/03/24
1762
Spin Rate (avg)
3/05/23

Curveball

76 - 77
Velo Range
7/06/23
2271
Spin Rate (avg)
3/05/23

Slider

76.5 - 79.1
Velo Range
7/24/24
2236
Spin Rate (avg)
3/03/24
Power
87.9
Exit Velocity (max)
3/05/23
81.2
Exit Velocity (avg)
3/05/23
335
Distance (max)
3/05/23
67
Sweet Spot %
3/06/22
Hitting
22.3
Hand Speed (max)
3/06/22
67.8
Bat Speed (max)
3/06/22
15
Rot. Acc (max)
3/06/22
-
Hard Hit %
Run
7.41
60
6/14/22
-
30-yd
-
10-yd
-
Run speed (max)
Defense
85
INF Velo
3/05/23
-
OF Velo
-
C Velo
-
Pop Time

Positional Tools

2023
2022
2021
Infield Velocity
85.0
60 Yard Dash
7.41
Infield Velocity
80.0
Power / Speed Score
11.3
60 Yard Dash
7.72
Infield Velocity
73.0
Power / Speed Score
9.7
Indiana Rising Stars ID
Jun 14, 2022
Position
7.41
60-yard
80
INF Velo
Power Speed Score
Preseason All-State: Underclass (Invite Only)
Mar 6, 2022
Position
7.60
60-yard
78
INF Velo
Power Speed Score
PBR Junior Future Games
Jul 28, 2021
Position
7.72
60-yard
73
INF Velo
75
Exit Velo
2021 Junior Future Games
Jul 28, 2021
Position
7.72
60-yard
73
INF Velo
75
Exit Velo

Hitting

2023
2022
Exit Velocity Max
87.9
Exit Velocity Avg
81.2
Distance Max
335
Distance Avg
176
Launch Angle Avg
14.3
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Exit Velocity Max
83.7
Exit Velocity Avg
69.4
Distance Max
291
Distance Avg
176
Launch Angle Avg
23.0
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Preseason All-State: Underclass (Invite Only)
Mar 5, 2023
Trackman - Hitting
87.9
Exit Velocity (max)
81.2
Exit Velocity (avg)
176
Distance (avg)
335
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Indiana Rising Stars ID
Jun 14, 2022
Trackman - Hitting
77.9
Exit Velocity (max)
67.3
Exit Velocity (avg)
186
Distance (avg)
250
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Preseason All-State: Underclass (Invite Only)
Mar 6, 2022
Trackman - Hitting
83.7
Exit Velocity (max)
71.4
Exit Velocity (avg)
167
Distance (avg)
291
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %

Hitting

2023
2022
Hand Speed Max
20.5
Hand Speed Avg
20.2
Bat Speed Max
66.9
Bat Speed Avg
64.8
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Hand Speed Max
22.3
Hand Speed Avg
21.1
Bat Speed Max
67.8
Bat Speed Avg
64.0
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Preseason All-State: Underclass (Invite Only)
Mar 5, 2023
Blast - Hitting
20.5
Hand Speed (max)
20.2
Hand Speed (avg)
66.9
Bat Speed (max)
64.8
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Preseason All-State: Underclass (Invite Only)
Mar 6, 2022
Blast - Hitting
22.3
Hand Speed (max)
21.1
Hand Speed (avg)
67.8
Bat Speed (max)
64.0
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency

Pitching

2024
2023
2022
Fastball
Velocity Max
88.8
Fastball
Velocity Avg
86.1
Fastball
Spin Rate Avg
2017
Fastball
Spin Score Avg
23.4
Fastball
Total Movement Avg
Changeup
Velocity Avg
80.5
Changeup
Spin Rate Avg
1671
Changeup
Total Movement Avg
Slider
Velocity Avg
77.0
Slider
Spin Rate Avg
2110
Slider
Total Movement Avg
Sinker
Velocity Avg
81.6
Sinker
Spin Rate Avg
1773
Sinker
Total Movement Avg
Fastball
Velocity Max
84.5
Fastball
Velocity Avg
83.3
Fastball
Spin Rate Avg
2104
Fastball
Spin Score Avg
25.2
Fastball
Total Movement Avg
Curveball
Velocity Avg
73.5
Curveball
Spin Rate Avg
2271
Changeup
Velocity Avg
75.7
Changeup
Spin Rate Avg
1762
Changeup
Total Movement Avg
Fastball
Velocity Max
78.2
Fastball
Velocity Avg
75.4
Fastball
Spin Rate Avg
1926
Fastball
Spin Score Avg
25.6
Fastball
Total Movement Avg
Curveball
Velocity Avg
66.1
Curveball
Spin Rate Avg
1762
Curveball
Total Movement Avg
Changeup
Velocity Avg
69.4
Changeup
Spin Rate Avg
1553
Changeup
Total Movement Avg
Future Games (Class of 2026/27)
Jul 24, 2024
Trackman - Fastball
87.3
Velocity (max)
84.4 - 86.0
Velo Range
84.0
Eff Velocity (avg)
2,149
Spin Rate (max)
1,992
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Slider
79.2
Velocity (max)
76.5 - 79.1
Velo Range
75.8
Eff Velocity (avg)
2,104
Spin Rate (max)
1,984
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Trackman - Sinker
80.7
Velocity (max)
79.0 - 80.3
Velo Range
79.0
Eff Velocity (avg)
1,863
Spin Rate (max)
1,731
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Preseason All-State: Underclass (Invite Only)
Mar 3, 2024
Trackman - Fastball
88.8
Velocity (max)
87.7 - 88.7
Velo Range
87.3
Eff Velocity (avg)
2,216
Spin Rate (max)
2,071
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
77.9
Velocity (max)
74.9 - 77.4
Velo Range
74.3
Eff Velocity (avg)
2,380
Spin Rate (max)
2,236
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
80.8
Velocity (max)
80.2 - 80.8
Velo Range
79.7
Eff Velocity (avg)
1,818
Spin Rate (max)
1,671
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Sinker
87.7
Velocity (max)
87.2 - 87.7
Velo Range
86.1
Eff Velocity (avg)
1,945
Spin Rate (max)
1,901
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Preseason All-State: Underclass (Invite Only)
Mar 5, 2023
Trackman - Fastball
84.5
Velocity (max)
82.6 - 84.1
Velo Range
81.8
Eff Velocity (avg)
2,136
Spin Rate (max)
2,104
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
74.7
Velocity (max)
72.2 - 74.7
Velo Range
70.6
Eff Velocity (avg)
2,359
Spin Rate (max)
2,271
Spin Rate (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - ChangeUp
76.9
Velocity (max)
74.6 - 76.8
Velo Range
74.1
Eff Velocity (avg)
1,827
Spin Rate (max)
1,762
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Indiana Rising Stars ID
Jun 14, 2022
Trackman - Fastball
78.2
Velocity (max)
77.4 - 78.1
Velo Range
75.5
Eff Velocity (avg)
1,964
Spin Rate (max)
1,924
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Curveball
68.3
Velocity (max)
65.9 - 68.1
Velo Range
64.9
Eff Velocity (avg)
1,894
Spin Rate (max)
1,856
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Trackman - ChangeUp
68.8
Velocity (max)
68.0 - 68.8
Velo Range
66.6
Eff Velocity (avg)
1,336
Spin Rate (max)
1,271
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Preseason All-State: Underclass (Invite Only)
Mar 6, 2022
Trackman - Fastball
74.8
Velocity (max)
72.5 - 74.7
Velo Range
71.5
Eff Velocity (avg)
2,006
Spin Rate (max)
1,927
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Curveball
66.7
Velocity (max)
62.6 - 66.7
Velo Range
63.2
Eff Velocity (avg)
1,918
Spin Rate (max)
1,637
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Trackman - ChangeUp
73.8
Velocity (max)
65.8 - 73.8
Velo Range
68.8
Eff Velocity (avg)
1,974
Spin Rate (max)
1,723
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %

Pitch Scores

2024
2023
2022
Fastball
Hop+
Fastball
Sink+
Fastball
Rise+
Slider
Hammer+
Slider
Sweep+
Fastball
Hop+
Fastball
Sink+
Fastball
Rise+
Fastball
Hop+
Fastball
Sink+
Fastball
Rise+
Preseason All-State: Underclass (Invite Only)
Mar 3, 2024
Pitch Scores - Fastball
Hop+
Rise+
Sink+
Pitch Scores - Slider
Hammer+
Sweep+

Pitching Velos

2024
2023
2022
2021
Fastball
Velocity Max
89.0
Fastball
Velocity Avg
88.5
Changeup
Velocity Avg
80.5
Slider
Velocity Avg
76.0
Fastball
Velocity Max
85.0
Fastball
Velocity Avg
83.5
Curveball
Velocity Avg
73.5
Changeup
Velocity Avg
76.0
Fastball
Velocity Max
83.0
Fastball
Velocity Avg
81.0
Curveball
Velocity Avg
72.0
Fastball
Velocity Max
75.0
Fastball
Velocity Avg
74.2
Curveball
Velocity Avg
63.0
Future Games
Jul 25, 2024
Pitching
87
Max FB
84 - 86
FB
76 - 77
SL
79 - 81
SPL
Preseason All-State: Underclass (Invite Only)
Mar 3, 2024
Pitching
89
Max FB
88 - 89
FB
80 - 81
CH
75 - 77
SL
15U National Championship
Jul 6, 2023
Pitching
84
Max FB
80 - 83
FB
76 - 77
CB
Preseason All-State: Underclass (Invite Only)
Mar 5, 2023
Pitching
85
Max FB
83 - 84
FB
72 - 75
CB
75 - 77
CH
PBR Fall Championships
Sep 9, 2022
Pitching
83
Max FB
80 - 82
FB
70 - 74
CB
PBR Junior Future Games
Jul 28, 2021
Pitching
75
Max FB
74 - 75
FB
62 - 64
CB

Game Performance

Visual Edge

Pitch Ai

Notes

Comments

3/03/24
Thomson owns an athletic, projectable, 6-foot-4, 195 pound frame paired with some of the best command in the class. Despite being in the middle of basketball season, Kellen sat 87-88, T 88.8 mph on his fastball, a tick compared to looks in the fall. His sinker worked with 17.4" of horizontal break, on average, and pairs very well with his ability to 'pull-the-string' on an 80-81 mph changeup, a pitch that will be a real weapon against left-handed hitters. The slider is an above average offering, spinning at 75-77 mph with late bite. We prioritize starter profiles within our rankings and Thomson certaintly fits that mold with his frame, athleticism, command, and a well-rounded four-pitch mix.
3/05/23

Position Profile: RHP/3B
Body: 6-3, 185-pounds. Projectable, athletic build
Hit: RHH. Tall stance w/ rhythm in the hands. Maintains rhytm into the load as the barrel flows continously, short stride forward. Direct path that works uphill after contact. Gap to gap type hitter.
Power: 88 max exit velocity, averaged 81.2 mph. 335' max distance.
Arm: RH. INF-85 mph.Loose, quick arm that works from a H 3/4 slot - advanced arm strength for a '26.
Defense: Shows some athleticism in the footwork, sure-handed infielder w/ a packing exchange.
Run: 7.18 runner in the 60.

Position Profile: RHP/3B
Body: 6-3, 185-pounds. Projectable, athletic build
Delivery: Simple, repeatable delivery. Tall, athletic balance point w/ controlled move down the slope. Lands square w/ a balanced finish.
Arm Action: RH. Long, loose, and clean arm that comes from a H 3/4 slot - good arm speed, more velocity in the tank.
FB: T85, 83-84 mph. Slight ASR - good FB command T2136, 2104 average rpm.
CB: 72-75 mph. 11/5 shape w/ sharp action at times - sporadic command T2359, 2271 average rpm.
CH: 75-77 mph. Flashes sinking action - pitch has potential T1827, 1762 average rpm.

6/14/22

Kellen Thomson, Center Grove, 2026, IN

Position: RHP/3B

Body: 6-foot-3, 180-pound proportional build.

Hit: (RHH) Confident capable. Started in a tall stance with a quick load, then used a short stride. Flashed bat speed. Level finish, level uphill swing. Up the middle approach. 

Power: 77.9 mph exit velocity, average 67.3 mph.

Defense:  (IF) Twitchy hands, smooth footwork, packing exchange. Solid.  Laterally, movements were twitchy and fielded the ball one hand. 

Arm: 80 mph infield velocity. Long quick arm action, high ¾ slot, decent accuracy. 

Speed: 7.41 (60-yard).

Pitching: Above average. Feel delivery, high effort. Over-the-top arm angle, consistent arm speed, consistent arm action. Tall balance point, in line shoulders, lands open, a falling off clean finish.

FB: 77-78 mph. (Max spin 1964;  Avg 1923). In the zone accuracy, some action. 

CB: 66-68 mph. In the zone down in the zone command. (Max spin 1893; Avg 1855). 

CH: 68-69 mph.

3/06/22

Kellen Thomson, Center Grove, 2026, IN

Position: RHP/3B

Body: 6-foot-2, 165-pound long projectable frame.

Hit: (RHH) Projectable. Starts in a tall stance with a quick load, then uses a short stride. Developing bat speed. Balanced finish, short swing. Line drive approach. 

Power: 84 mph exit velocity, average 71.4 mph. 64.0 mph bat speed average. 21.1 mph hand speed average.

Defense:  (IF) Sure hands, quick footwork, packing exchange. Solid. 

Arm: 78 mph infield velocity. Quick arm action, high ¾ slot. 

Speed: 7.60 (60-yard).

Pitching: Projectable. Stretch only delivery, easy effort. Over-the-top arm angle, some arm speed, loose arm action. Tall balance point, upright finish.

FB: 73-75 mph. (Max spin 2005;  Avg 1926). Feel accuracy. 

CB: 63-67 mph. 11/5 shape. (Max spin 1917; Avg 1637). 

CH: 66-74 mph. Gradual fading action. 

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