22.6
Hand Speed (max)
8/20/23
CLASS OF 2026
1B
LHP
Sladen
Johnson
Barnstable (HS) • MA
5' 11" • 175LBS
L/L • 16yr 6mo
Travel Team: Boston Prime
5' 11" • 175LBS
L/L • 16yr 6mo
Travel Team: Boston Prime
Rankings
2026 National
Rankings available to Premium Subscriber
2026 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
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Best Of Stats
70.9
Bat Speed (max)
8/20/23
21.7
Rot. Acc (max)
8/20/23
-
Hard Hit %
92
Exit Velocity (max)
1/27/24
85.4
Exit Velocity (avg)
1/27/24
315
Distance (max)
8/20/23
79
Sweet Spot %
8/20/23
7.78
60
8/20/23
-
30-yd
-
10-yd
-
Run speed (max)
86
INF Velo
1/27/24
84
OF Velo
8/20/23
-
C Velo
-
Pop Time
Fastball
78.9
Velocity (max)
8/20/23
77 - 78.7
Velo Range
8/20/23
1541
Spin Rate (avg)
8/20/23
Curveball
59.8 - 62
Velo Range
8/20/23
1669
Spin Rate (avg)
8/20/23
Positional Tools
2024
2023
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Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
86.0
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.78
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
84.0
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.
11.8
Hitting
2024
2023
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
92.0
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
85.4
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
308
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
182
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
13.4
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).
91.9
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
85.3
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
315
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
225
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
18.1
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.
Scout Day: Boston Prime 1.27.24
Jan 27, 2024
Trackman - Hitting
92.0
Exit Velocity (max)
85.4
Exit Velocity (avg)
182
Distance (avg)
308
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2023 New England Future Game Trials
Aug 20, 2023
Trackman - Hitting
91.9
Exit Velocity (max)
85.3
Exit Velocity (avg)
225
Distance (avg)
315
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2023
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
22.6
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
20.0
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
70.9
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
66.7
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.
2023 New England Future Game Trials
Aug 20, 2023
Blast - Hitting
22.6
Hand Speed (max)
20.0
Hand Speed (avg)
70.9
Bat Speed (max)
66.7
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2023
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
78.9
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
77.9
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).
1541
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.
19.8
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).
61.0
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).
1669
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).
2023 New England Future Game Trials
Aug 20, 2023
Trackman - Fastball
78.9
Velocity (max)
77.0 - 78.7
Velo Range
77.6
Eff Velocity (avg)
1,670
Spin Rate (max)
1,541
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
62.0
Velocity (max)
59.8 - 62.0
Velo Range
60.6
Eff Velocity (avg)
1,846
Spin Rate (max)
1,669
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Pitch Scores
2023
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
Game Performance
Visual Edge
Pitch Ai
Notes
News
- 2024 New England Scout Day: Boston Prime Showcase Advanced Metrics: Hitting Leaderboard - Jan 29, 2024
- 2024 New England Scout Day: Boston Prime Advanced Metrics: Trackman Analytics - Pitching Leaderboard - Jan 29, 2024
- Results From 2024 Scout Day: Boston Prime - Jan 29, 2024
- 2023 New England Future Game Trials - Quick Hits - Aug 22, 2023
- 2023 New England Future Game Trials Advanced Metrics: Hitting Leaderboard - Aug 21, 2023
- 2023 New England Guture Game Trials Advanced Metrics: Trackman Analytics - Pitching Leaderboard - Aug 21, 2023
- Results From 2023 New England Future Game Trials - Aug 21, 2023
Comments
Draft Reports
Contact
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Sladen Johnson: 1B/LHP, (2026) Barnstable, MA. 5-foot-11, 175-pound lean athletic frame. Above average and projectable at the plate, the left-handed hitter had an exit velocity of 92 mph. Starts in a balanced athletic stance with a wrapping handsy load, then uses a short stride. Bat speed was quick developing, showed an uphill loose swing plane and good extension on his finish. In his round he found lots of barrels with loud contact. Gap to gap aggressive approach. Above average, showed his live arm in the infield with position velocities up to 86 mph; has athletic developing feet, developing soft hands, and a natural twitchy exchange. Fielded the ball out front with athletic movement laterally. Had a high ¾ slot and a very quick loose arm action with consistent accuracy to the bag.
Sladen Johnson: 1B/LHP, (2026) Barnstable, MA. 5-foot-11, 175-pound athletic projectable build. Projectable and athletic during batting practice, the left-handed hitter had a max exit velocity of 92 mph. (66.7 mph bat speed average). (20.0 mph hand speed average). Began in a balanced wide stance with a controlled load, then used a small stride. Bat speed was quick developing, uses an uphill loose swing plane and a front foot finish. He barreled up multiple balls with loud contact. Gap to gap aggressive approach. Athletic and projectable recorded an outfield position velocity of 84 mph; has a natural exchange, athletic developing feet, and developing soft hands. Fielded the ball out front with athletic developing movement laterally. Consistent accuracy to the bases, used a high ¾ slot with a loose quick arm action. During the event, clocked a 60 time of 7.7. Athletic and projectable on the mound, used a high ¾ arm angle and a loose consistent arm action while showing developing quick arm speed. Up-tempo type pitcher who uses some effort. Displays in line shoulders with a consistent balance point. Lands closed with a falling off finish. Produced a fastball that came in at 77-78 mph; had control arm side around the zone and running sinking action. (Max spin 1669; Avg 1540). His curveball (60-62) has sweeping action and glove side around the zone command. (Max spin 1845; Avg 1668).