86.1
Velocity (max)
10/25/24
CLASS OF 2025
RHP
OF
Greyson
Osbun
Kamehameha Schools Kapalama Campus (HS) • HI
5' 11" • 183.4LBS
R/R • 18yr 2mo
Travel Team: Baum Bat Scout Team
5' 11" • 183.4LBSR/R • 18yr 2mo
Travel Team: Baum Bat Scout Team
Rankings
2025 National
Rankings available to Premium Subscriber
2025 State
Rankings available to Premium Subscriber
Commitment
Best Of Stats
Fastball
84.6 - 85.9
Velo Range
10/25/24
2205
Spin Rate (avg)
1/07/24
Changeup
76.3 - 77.9
Velo Range
10/25/24
2059
Spin Rate (avg)
1/07/24
Curveball
74.1 - 77.8
Velo Range
10/25/24
2330
Spin Rate (avg)
10/25/24
Slider
75 - 77
Velo Range
1/07/24
2305
Spin Rate (avg)
10/25/24
Positional Tools
Hitting
Hitting
Pitching
2024
Sign in to view rankings 
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
86.1
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
85.0
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).
2203
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.
25.9
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).
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
75.9
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).
2330
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).
76.6
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).
1996
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).
76.1
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).
2157
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).
Hawaii Fall Showcase: Powered by Prep Baseball Hawaii
Oct 25, 2024
Trackman - Fastball
86.1
Velocity (max)
84.6 - 85.9
Velo Range
83.6
Eff Velocity (avg)
2,244
Spin Rate (max)
2,201
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
78.3
Velocity (max)
74.1 - 77.8
Velo Range
73.8
Eff Velocity (avg)
2,367
Spin Rate (max)
2,330
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Slider
77.4
Velocity (max)
75.1 - 76.9
Velo Range
73.8
Eff Velocity (avg)
2,412
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 %
Spin Efficiency % (avg)
Trackman - ChangeUp
78.1
Velocity (max)
76.3 - 77.9
Velo Range
75.8
Eff Velocity (avg)
2,259
Spin Rate (max)
1,967
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Oahu Preseason ID
Jan 7, 2024
Trackman - Fastball
85.3
Velocity (max)
83.6 - 85.3
Velo Range
83.2
Eff Velocity (avg)
2,285
Spin Rate (max)
2,205
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Slider
76.9
Velocity (max)
75.5 - 76.9
Velo Range
75.1
Eff Velocity (avg)
2,314
Spin Rate (max)
2,039
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
76.5
Velocity (max)
74.4 - 76.3
Velo Range
74.2
Eff Velocity (avg)
2,084
Spin Rate (max)
2,059
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Pitch Scores
2024
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
2024
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
85.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
84.5
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
75.0
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
Visual Edge
Pitch Ai
Notes
News
- Hawaii 2025 Class Rankings: Fall Update - Nov 20, 2024
- Hawaii Fall Showcase: Pitching Data Dive - Oct 30, 2024
- Prep Baseball Hawaii Player of the Year: RHP Greyson Osbun - May 21, 2024
- Kamehameha Kapalama Warriors: 2024 Season Preview - Mar 4, 2024
- Oahu Preseason ID: Pitching Data Dive - Jan 12, 2024
- Oahu Preseason ID: Quick Hits - Jan 10, 2024
Comments
Draft Reports
Contact
Premium Content Area
To unlock contact information, you need to purchase a ScoutPLUS subscription.
Purchase Subscription OR
Login
Physical
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.
Grew an inch and put on almost 10 lbs of muscle (especially lower half) since Jan 7 Oahu Preseason ID. 2024's Prep Baseball Hawaii Player (and pitcher) of the Year gave up a first-pitch HR on belt-high FB then proceeded to showed the poise and mound presence of a 10 year MLB veteran, HR didn't faze him, came right back and struck out the next batter and showed why he's arguable the best prep pitcher in the state with future plus breaking ball and CHG. Osbun is a huge piece of maybe the best/deepest high school pitching staff ever at Kamehameha Kapalama and Osbun will be trusted by his teammates and coaches in big games as no other pitcher in 2024 came up with bigger performances to close 2024's regular season when their team needed a big win. Great get for University of Nevada where Osbun project to be a major contributor as a freshman in 2026.
5-10/175, added 15 lbs of muscle, especially lower half, looking strong...arguably the best high school pitcher in Hawaii in 2023...excellent rhythm, tempo, delivery & mound presence, looks like a pro...seen him up to 89 w/command & 2300+ spin...CHG is best out-pitch, excellent feel & deception w/+confidence, can throw in any count, advanced touch & command, ends up at least plus, equally effective vs LH/RHH's...plus feel for true SL, doesn't have crazy spin but ability to command plays SL up, induces chase-K's vs RHH's often...K-out pitcher, feel ends up a low BB rate guy...quiet & reserved off the field, completely different demeanor on the mound as fiery competitor...big game pitcher, cool under pressure, exudes confidence, a winner...truly feel will prove a lot of doubters wrong...would have 10+ big DI offers if was 6-02, should already be committed...reminds me of David Cone...#10 ranked Hawaii 2025...strong DI recruit.