@TannerKoss 21.7
Hand Speed (max)
3/02/25
CLASS OF 2027
1B
RHP
Tanner
Koss
Delbarton (HS) • NJ
6' 3" • 245LBS
L/R • 17yr 5mo
Travel Team: PRD Ghost
6' 3" • 245LBS
L/R • 17yr 5mo
Travel Team: PRD Ghost
Rankings
2027 National
Rankings available to Premium Subscriber
2027 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
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Best Of Stats
84.4
Bat Speed (max)
3/02/25
19.4
Rot. Acc (max)
3/02/25
27
Hard Hit %
3/02/25
95.1
Exit Velocity (max)
3/02/25
82.5
Exit Velocity (avg)
3/02/25
348
Distance (max)
3/02/25
69
Sweet Spot %
7/09/24
7.91
60-yd
7/09/24
4.53
30-yd
3/02/25
2.06
10-yd
3/02/25
17.2
Run speed (max)
3/02/25
83
INF Velo
3/02/25
-
OF Velo
-
C Velo
-
Pop Time
Fastball
83
Velocity (max)
7/09/24
80 - 82
Velo Range
7/09/24
1664
Spin Rate (avg)
7/09/24
Changeup
77.4 - 78.3
Velo Range
7/09/24
1644
Spin Rate (avg)
7/09/24
Curveball
69.2 - 70.3
Velo Range
7/09/24
2150
Spin Rate (avg)
7/09/24
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)
8.11
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
83.0
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.
11.7
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
74.0
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).
95.1
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
82.5
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
348
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
210
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
27.4905
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).
91.4
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
77.7
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
320
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
206
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
22.3393
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.
2025 NJ Preseason All-State: Underclass (2027-2028s)
Mar 2, 2025
Trackman - Hitting
95.1
Exit Velocity (max)
82.5
Exit Velocity (avg)
210
Distance (avg)
348
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2024 NJ Summer Open ID
Jul 9, 2024
Trackman - Hitting
91.4
Exit Velocity (max)
77.7
Exit Velocity (avg)
206
Distance (avg)
320
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2025
2024
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
21.7
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
20.3
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
84.4
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
71.3
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.
21.0
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
19.4
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
68.8
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
66.1
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.
2025 NJ Preseason All-State: Underclass (2027-2028s)
Mar 2, 2025
Blast - Hitting
21.7
Hand Speed (max)
20.3
Hand Speed (avg)
84.4
Bat Speed (max)
71.3
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2024 NJ Summer Open ID
Jul 9, 2024
Blast - Hitting
21.0
Hand Speed (max)
19.4
Hand Speed (avg)
68.8
Bat Speed (max)
66.1
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2024
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
82.9
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
80.8
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).
1664
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.
20.6
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).
69.7
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).
2150
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).
77.9
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).
1644
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).
2024 NJ Summer Open ID
Jul 9, 2024
Trackman - Fastball
82.9
Velocity (max)
79.7 - 81.9
Velo Range
79.0
Eff Velocity (avg)
1,795
Spin Rate (max)
1,664
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
70.4
Velocity (max)
69.2 - 70.3
Velo Range
67.2
Eff Velocity (avg)
2,188
Spin Rate (max)
2,150
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
78.3
Velocity (max)
77.4 - 78.3
Velo Range
76.4
Eff Velocity (avg)
1,813
Spin Rate (max)
1,644
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Pitch Scores
2024
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
Curveball
Hammer+
A hammer breaking ball drops vertically with velocity through the zone, or 12-to-6 movement. Hammer+ of 100 is MLB average.
Curveball
Sweep+
A sweeping breaking ball moves horizontally with velocity through the zone. Sweep+ of 100 is MLB average.
Pitching Velos
2024
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
83.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
81.0
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
69.5
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
77.5
Game Performance
2024
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.92
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
2025
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
2.06
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.53
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
8.11
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
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.
76.92
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.
80.47
Pitch Ai
Notes
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Comments
Draft Reports
Contact
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Physical
2025
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.
Positional Profile: 1B/RHP
Body: 6-2, 225-pounds. Strong and athletic frame.
Delivery: Consistent rhythm and tempo. Even shoulder tilt down the mound. Gets over a strong brace leg. Stride direction stays in line.
Arm Action: RH. Shorter AA, maintains flexion. High 3/4 slot.
FB: T83, 80-82 mph. Consistently in the zone, both sides of the plate. T1795, 1664 average rpm.
CB: 69-70 mph. 2-plane action, sharp w/ depth at the bottom of the zone. T2188, 2150 average rpm.
CH: 77-78 mph. Occasional sink. T1813, 1644 average rpm.
ATH: 7.91 runner in the 60.
Positional Profile: 1B/RHP
Body: 6-2, 225-pounds. Strong and athletic frame.
Hit: LHH. Wide and balanced stance. Heavy coil into the backside with no stride. Hands up tall, work back in the load. Swings with controlled aggression, feel for the barrel. 66.1 mph bat speed with 12 G's of rotational acceleration.
Power: 91 max exit velocity, averaged 77.7 mph. 320' max distance.
Arm: RH. INF-74 mph. Shorter arm swing, clean.
Defense: Clean glovework, active feet.
ATH: 7.91 runner in the 60.
Vizual Edge: 80.47 Edge Score