20
Hand Speed (max)
8/24/24
CLASS OF 2027
SS
RHP
Jace
Diaz
Casteel (HS) • AZ
5' 11" • 147.5LBS
L/R • 17yr 1mo
Travel Team: Cincinnati Spikes
5' 11" • 147.5LBSL/R • 17yr 1mo
Travel Team: Cincinnati Spikes
Rankings
2027 National
Rankings available to Premium Subscriber
2027 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
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Best Of Stats
66
Bat Speed (max)
8/24/24
11.5
Rot. Acc (max)
1/25/25
-
Hard Hit %
87.2
Exit Velocity (max)
8/24/24
78.4
Exit Velocity (avg)
1/25/25
313
Distance (max)
8/24/24
69
Sweet Spot %
8/24/24
7.16
60-yd
8/24/24
-
30-yd
-
10-yd
-
Run speed (max)
82
INF Velo
8/24/24
-
OF Velo
-
C Velo
-
Pop Time
Fastball
81
Velocity (max)
1/25/25
78.7 - 80.2
Velo Range
1/25/25
2024
Spin Rate (avg)
1/25/25
Changeup
67.7 - 68.5
Velo Range
1/25/25
961
Spin Rate (avg)
1/25/25
Curveball
54.4 - 68.4
Velo Range
1/25/25
1116
Spin Rate (avg)
1/25/25
Positional Tools
2025
2024
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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).
79.0
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.16
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
82.0
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.
12.2
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).
87.1
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
78.4
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
251
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
151
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
14.5565
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).
87.2
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
77.9
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
313
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
190
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
17.577
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.
Preseason All-State Games: Underclass (Invite-Only)
Jan 25, 2025
Trackman - Hitting
87.1
Exit Velocity (max)
78.4
Exit Velocity (avg)
151
Distance (avg)
251
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Tucson Summer ID
Aug 24, 2024
Trackman - Hitting
87.2
Exit Velocity (max)
77.9
Exit Velocity (avg)
190
Distance (avg)
313
Distance (max)
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.
19.8
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.
64.4
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
62.5
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.
20.0
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
18.9
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
66.0
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
63.6
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.
Preseason All-State Games: Underclass (Invite-Only)
Jan 25, 2025
Blast - Hitting
19.8
Hand Speed (max)
19.4
Hand Speed (avg)
64.4
Bat Speed (max)
62.5
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Tucson Summer ID
Aug 24, 2024
Blast - Hitting
20.0
Hand Speed (max)
18.9
Hand Speed (avg)
66.0
Bat Speed (max)
63.6
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2025
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
80.7
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
79.4
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).
2024
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.
25.5
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).
63.2
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).
1116
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).
Knuckleball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
68.1
Knuckleball
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).
961
Knuckleball
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Preseason All-State Games: Underclass (Invite-Only)
Jan 25, 2025
Trackman - Fastball
80.7
Velocity (max)
78.7 - 80.2
Velo Range
78.1
Eff Velocity (avg)
2,091
Spin Rate (max)
2,024
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
68.4
Velocity (max)
54.4 - 68.4
Velo Range
67.5
Eff Velocity (avg)
1,420
Spin Rate (max)
1,116
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Knuckleball
68.5
Velocity (max)
67.7 - 68.5
Velo Range
68.1
Eff Velocity (avg)
911
Spin Rate (max)
961
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Pitch Scores
2025
Fastball
Hop+
A fastball with hop has a flat approach angle and visually jumps through the zone. When thrown up in the zone, it is more likely to generate a higher swing and miss average. Hop+ of 100 is MLB average.
Fastball
Sink+
A fastball with sink has low backspin and drops through the strike zone. When thrown down in the zone, it is more likely to generate a higher ground ball percentage and lower launch angle. Sink+ of 100 is MLB average.
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
2025
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
81.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
79.5
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
Game Performance
2024
RSi
The reactive strength index measurement of an athlete's explosiveness by comparing their jump height to the ground contact time in between their jumps. On a scale of 0-5.
Vertical Jump
A measure of any athlete's body strength and reach calculated from the flight time divided by the contact time.
2025
Vertical Jump
A measure of any athlete's body strength and reach calculated from the flight time divided by the contact time.
Vizual Edge
2025
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.
72.97
Pitch Ai
Notes
News
Comments
8/24/24
Jace Diaz, a 2027 graduate out of Casteel High School, impressed at the Tucson Summer ID with his standout performance as a left-handed hitting middle infielder. Diaz showcased his polished defensive skill set, featuring ultra-clean actions and advanced footwork up the middle. His fluid movements and quick transfer highlight his natural feel for the position, making him a reliable defender in all situations. At the plate, Diaz put together an impressive round of BP, consistently driving the ball with authority. His approach is mature for his age, focusing on using the middle part of the field, resulting in a series of low line drives and deep fly balls. With his combination of defensive prowess and offensive consistency, Diaz is a player to watch closely as he prepares for the 2025 spring season. Casteel High School is adding yet another piece to their lineup, as Diaz’s continues to development he could be a significant contributor to their success in the near future.
Draft Reports
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Physical
2025
2024
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.
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.