88.7
Velocity (max)
9/13/25
CLASS OF 2027
RHP
OF
Sebastian
Schaffer
Los Gatos (HS) • CA
6' 3" • 186LBS
R/R • 16yr 10mo
Travel Team: Top Tier NorCal
6' 3" • 186LBSR/R • 16yr 10mo
Travel Team: Top Tier NorCal
Rankings
2027 National
Rankings available to Premium Subscriber
2027 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
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Best Of Stats
Fastball
80.9 - 85.8
Velo Range
9/13/25
2331
Spin Rate (avg)
9/13/25
Changeup
68.9 - 70.6
Velo Range
9/13/25
2013
Spin Rate (avg)
7/23/25
Slider
68.8 - 71.1
Velo Range
9/13/25
2049
Spin Rate (avg)
9/13/25
Positional Tools
Hitting
Hitting
Pitching
2025
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Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
88.7
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
83.2
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).
2319
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.
27.9
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).
72.1
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).
1599
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).
69.5
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).
2037
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).
Splitter
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
69.6
Splitter
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).
1108
Splitter
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
NorCal Uncommitted Games
Sep 13, 2025
Trackman - Fastball
88.7
Velocity (max)
80.9 - 85.8
Velo Range
83.3
Eff Velocity (avg)
2,505
Spin Rate (max)
2,331
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Slider
71.5
Velocity (max)
68.8 - 71.1
Velo Range
68.5
Eff Velocity (avg)
2,142
Spin Rate (max)
2,049
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
68.9
Velocity (max)
1,184
Spin Rate (max)
1,184
Spin Rate (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Trackman - Splitter
70.7
Velocity (max)
68.9 - 70.6
Velo Range
68.2
Eff Velocity (avg)
980
Spin Rate (max)
1,108
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Future Games (Class of 2027)
Jul 23, 2025
Trackman - Fastball
85.2
Velocity (max)
81.5 - 84.5
Velo Range
81.7
Eff Velocity (avg)
2,497
Spin Rate (max)
2,305
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Slider
71.9
Velocity (max)
67.4 - 70.8
Velo Range
67.3
Eff Velocity (avg)
2,258
Spin Rate (max)
2,027
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
75.2
Velocity (max)
74.4
Eff Velocity (avg)
2,013
Spin Rate (max)
2,013
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
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
Slider
Hammer+
A hammer breaking ball drops vertically with velocity through the zone, or 12-to-6 movement. Hammer+ of 100 is MLB average.
Slider
Sweep+
A sweeping breaking ball moves horizontally with velocity through the zone. Sweep+ of 100 is MLB average.
Pitching Velos
Game Performance
Vizual Edge
Pitch Ai
Notes
News
Comments
Draft Reports
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Schaffer was a very familiar face to the Prep Baseball staff, fresh off representing Team Northern California at the 2025 Prep Baseball Future Games. The Los Gatos High School right-hander has now turned his focus to competing for a rotation spot this upcoming season, and his profile continues to trend upward. At 6’2” with broad shoulders and long levers, Schaffer already checks a lot of boxes physically. He moved well down the mound, showing a clean delivery and the kind of athleticism that suggests more velocity is still on the way. The fastball was his best weapon, sitting 85–88 mph and touching 89, with high spin rates around 2500 rpm that allow the pitch to play up in the zone and generate consistent swing-and-miss. What makes Schaffer especially intriguing is his developing arsenal beyond the fastball. He flashed two quality offspeed pitches that give him a starter’s foundation. Both offerings show signs of becoming legitimate “plus” pitches as he continues to gain feel and command. Combined with his size and ability to create tough angles, hitters have a difficult time squaring him up. The upside here is significant. With two years of varsity baseball still ahead, Schaffer has time to refine his mechanics, add strength, and grow into a true starter’s role. If he continues on this trajectory, tightening command, repeating his delivery, and polishing the secondary pitches he has the potential to be a name that draws serious attention at the next level. Schaffer’s future is bright. The raw ingredients are all in place: size, fastball quality, advanced spin metrics, and the makings of a complete arsenal. With continued development, he projects as a rotation anchor for Los Gatos and a player to watch closely in Northern California’s 2027 class.
Sebastian Schaffer, Los Gatos High (CA), 2027
Positional Profile: RHP/OF RHP who attacks the zone with high spin offerings. Will add velocity as frame fills.
Body: 6-2, 180-pounds. Wiry, lean build with room to add strength and physicality.
Delivery: Sets hands just below eye level before dropping to belt height to sync with the front leg. Utilizes a high leg kick with an inward hip turn, sinking into the rear hip before employing a drop/drive movement down the mound. Works with noticeable length to the stride and shows solid feel for blocking with the plant leg. Upper half stays tall through the finish, aiding direction and consistency.
Arm Action: RH. Works with a full arm circle out of the glove, initially working down while staying fairly in line with the body. Arm action is smooth, building momentum through progression to display solid arm speed. Shows consistent release point from a low 3/4 slot, finishing with significant recoil.
FB: T85, 82-84 mph. High spin FB that displays good life/carry through the zone; generating whiffs above the zone. Pairs with heavy arm-side run that is effective against LHH away. Velocity will come as frame fills. T2497, 2305 average rpm.
SL: 67-71 mph. Gyro-like SL, with late breaking action. Plays well of the FB up to RHH; effective in zone. Exhibits more of a sweeping action when thrown away to RHH. T2258, 2027 average rpm.
CH: 75-75 mph. Developing offering against LHH; needs polish. 2013 average rpm.