20.4
Hand Speed (max)
6/16/23
CLASS OF 2025
3B
1B
Giani
Chieffalo
Danbury (HS) • CT
6' 0" • 215LBS
R/R • 16yr 7mo
Travel Team: Danbury Westerners
6' 0" • 215LBS
R/R • 16yr 7mo
Travel Team: Danbury Westerners
Rankings
2025 National
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
Player has made a commitment?
Tell us where
Best Of Stats
66.2
Bat Speed (max)
6/16/23
19.4
Rot. Acc (max)
6/16/23
-
Hard Hit %
91.6
Exit Velocity (max)
6/16/23
83.4
Exit Velocity (avg)
6/16/23
302
Distance (max)
6/16/23
69
Sweet Spot %
6/16/23
7.82
60
6/16/23
4.24
30-yd
6/16/23
1.79
10-yd
6/16/23
17.1
Run speed (max)
6/16/23
77
INF Velo
6/16/23
-
OF Velo
-
C Velo
-
Pop Time
Fastball
74.1
Velocity (max)
6/16/23
72.1 - 73.5
Velo Range
6/16/23
1556
Spin Rate (avg)
6/16/23
Changeup
69.1 - 70.3
Velo Range
6/16/23
1388
Spin Rate (avg)
6/16/23
Curveball
64 - 64.6
Velo Range
6/16/23
1660
Spin Rate (avg)
6/16/23
Positional Tools
2023
Sign in to view rankings 
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
77.0
Hitting
2023
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
91.6
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
83.4
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
302
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
202
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
17.3
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: Danbury Westerners 6.16.23
Jun 16, 2023
Trackman - Hitting
91.6
Exit Velocity (max)
83.4
Exit Velocity (avg)
202
Distance (avg)
302
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.
20.4
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
19.6
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
66.2
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
64.3
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.
Scout Day: Danbury Westerners 6.16.23
Jun 16, 2023
Blast - Hitting
20.4
Hand Speed (max)
19.6
Hand Speed (avg)
66.2
Bat Speed (max)
64.3
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).
74.1
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
72.8
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).
1556
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.
21.4
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).
64.3
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).
1660
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).
69.6
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).
1388
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).
Scout Day: Danbury Westerners 6.16.23
Jun 16, 2023
Trackman - Fastball
74.1
Velocity (max)
72.1 - 73.5
Velo Range
71.6
Eff Velocity (avg)
1,755
Spin Rate (max)
1,556
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
64.6
Velocity (max)
64.0 - 64.6
Velo Range
61.5
Eff Velocity (avg)
1,690
Spin Rate (max)
1,660
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
70.4
Velocity (max)
69.1 - 70.3
Velo Range
68.1
Eff Velocity (avg)
1,477
Spin Rate (max)
1,388
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
2023
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.79
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.24
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.82
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
Visual Edge
Pitch Ai
Notes
News
Comments
Draft Reports
Contact
Premium Content Area
To unlock contact information, you need to purchase a ScoutPLUS subscription.
Purchase Subscription OR
Login
Giani Chieffalo: 3B/1B, (2025) Danbury, CT. 6-foot, 215-pound mature strong build. Raw projectable at the plate, Chieffalo's 92 mph exit velocity ranks him 2nd at the event. (64.3 mph bat speed average). (19.6 mph hand speed average). Started in a tall athletic stance with a handsy load, then used a small leg kick. Bat speed is electric, has a short simple swing plane and good extension on his finish. Found multiple barrels with tons of loud contact. Gap to gap aggressive approach. Above average in the infield, his position velocity was registered at 77 mph; has athletic quick feet, soft hands, and a twitchy exchange. Fields the ball out front, movements laterally were athletic. Had a long loose arm action and a high ¾ slot with consistent accuracy to the base. In the 60-yard dash, recorded a time of 7.82. Raw projectable on the mound, showed good arm speed with a high ¾ arm angle and a long loose arm action. Tall-and-fall up-tempo type pitcher and shows some effort. Showed strong balance point with in line shoulders. Lands square with an athletic balanced finish. Sat with his fastball at 71-75 mph; showed sinking action and arm side command with heavy movement. (Max spin 1754; Avg 1556). Has slurvey late action and down in the zone command on his 1/7 curveball (63-64). (Max spin 1689; Avg 1660). Shows fading action and arm side control on his changeup (69-70). Strong, solid athlete, pop in his hands.
Exit Velocity: 92 mph
Arm Velocity: 77 mph
Sixty-Yard Dash: 7.82