90.6
Velocity (max)
2/14/25
CLASS OF 2025
RHP
OF
Jakoby
Hamer
Austin O'Brien (HS) • AB
6' 6" • 230LBS
R/R • 18yr 10mo
Travel Team: ATHX
6' 6" • 230LBS
R/R • 18yr 10mo
Travel Team: ATHX
Rankings
2025 National
Rankings available to Premium Subscriber
Commitment
Best Of Stats
Fastball
87.1 - 90.4
Velo Range
2/14/25
2354
Spin Rate (avg)
2/14/25
Changeup
79.4 - 80.8
Velo Range
2/14/25
916
Spin Rate (avg)
2/14/25
Slider
74.8 - 76.9
Velo Range
2/14/25
2225
Spin Rate (avg)
2/14/25
103.8
Exit Velocity (max)
2/14/25
94.2
Exit Velocity (avg)
2/14/25
301
Distance (max)
2/14/25
36
Sweet Spot %
2/14/25
-
Hand Speed (max)
-
Bat Speed (max)
-
Rot. Acc (max)
79
Hard Hit %
2/14/25
Positional Tools
Hitting
2025
Sign in to view rankings 
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
103.8
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
94.2
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
301
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
124
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
10.8101
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.
2025 ATHX Scout Day
Feb 14, 2025
Trackman - Hitting
103.8
Exit Velocity (max)
94.2
Exit Velocity (avg)
124
Distance (avg)
301
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
Pitching
2025
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
90.6
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
88.7
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).
2354
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.
26.5
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).
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
75.9
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).
2225
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).
80.1
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).
916
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).
2025 ATHX Scout Day
Feb 14, 2025
Trackman - Fastball
90.6
Velocity (max)
87.1 - 90.4
Velo Range
88.6
Eff Velocity (avg)
2,479
Spin Rate (max)
2,354
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
77.2
Velocity (max)
74.8 - 76.9
Velo Range
74.5
Eff Velocity (avg)
2,264
Spin Rate (max)
2,225
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Splitter
80.8
Velocity (max)
79.4 - 80.8
Velo Range
79.6
Eff Velocity (avg)
700
Spin Rate (max)
916
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
Pitching Velos
Game Performance
Vizual Edge
Pitch Ai
Notes
Comments
Draft Reports
Contact
Premium Content Area
To unlock contact information, you need to purchase a ScoutPLUS subscription.
Purchase Subscription OR
Login
Hamer is one of the largest players on Alberta's high school circuit, checking in at 6-foot-6, 230-pounds. While his frame alone is enough to dream on, he backed it up with loud numbers. He took the crown of top exit velocity (103.8), and top fastball velocity (90.6). Fresh out of local ball, he's green across the board, but he's worth paying attention to as he develops this season.