92.1
Velocity (max)
5/31/26
CLASS OF 2027
LHP
OF
Mason
Sims
Corona (HS) • CA
5' 11" • 176.8LBS
L/L • 18yr
Travel Team: MLB Breakthrough
5' 11" • 176.8LBSL/L • 18yr
Travel Team: MLB Breakthrough
Rankings
2027 National
Rankings available to Premium Subscriber
2027 State
Rankings available to Premium Subscriber
Commitment
Best Of Stats
Fastball
90 - 92
Velo Range
5/31/26
2074
Spin Rate (avg)
5/31/26
Changeup
81 - 81
Velo Range
5/31/26
948
Spin Rate (avg)
5/31/26
Slider
75 - 77
Velo Range
5/31/26
2111
Spin Rate (avg)
5/31/26
Positional Tools
Hitting
Hitting
Pitching
2026
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Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
92.1
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
91.0
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).
2074
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.
22.8
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).
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
81.1
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).
948
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).
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
75.8
Slider
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).
2111
Slider
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
SoCal ProCase
May 31, 2026
Trackman - Fastball
92.1
Velocity (max)
90.3 - 91.8
Velo Range
91.7
Eff Velocity (avg)
2,236
Spin Rate (max)
2,074
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Slider
77.3
Velocity (max)
75.1 - 76.5
Velo Range
75.4
Eff Velocity (avg)
2,375
Spin Rate (max)
2,111
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
81.1
Velocity (max)
81.6
Eff Velocity (avg)
948
Spin Rate (max)
948
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Pitch Scores
Pitching Velos
2026
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
92.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
91.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
81.0
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
76.0
Game Performance
Vizual Edge
Pitch Ai
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Physical
2026
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: LHP/OF LHP with strong hip-shoulder separation and a low, driving delivery.
Body: 5-11, 177-pounds. Compact, athletic frame.
Delivery: Glove starts low at belt level, brings it high towards the face, then back down to just above belt level. Front leg rocks back into a medium leg kick towards the belt, sinking well into the hips and driving low down the mound. Strong hip-shoulder separation present with repeatable actions throughout. Body postures up when throwing breaking pitches.
Arm Action: LH. 3/4 arm slot with a low jab arm backpath. Long, loose release with slight recoil present.
FB: T92, 90-92 mph. Firm, straight fastball. T2236, 2074 average rpm.
SL: 75-77 mph. Sharp horizontal movement with some vertical depth. T2375, 2111 average rpm.
CH: 81-81 mph. Dives aggressively and could pair well with the fastball. T948, 948 average rpm.