@JaxJaneski_02 91
Velocity (max)
6/04/26
CLASS OF 2028
RHP
SS
Jax
Janeski
JSerra Catholic (HS) • CA
6' 4" • 205LBS
R/R • 16yr 9mo
Travel Team: JK Select
6' 4" • 205LBS
R/R • 16yr 9mo
Travel Team: JK Select
Rankings
2028 National
Rankings available to Premium Subscriber
2028 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
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Best Of Stats
Fastball
88 - 91
Velo Range
6/04/26
2155
Spin Rate (avg)
5/31/26
Changeup
79.9 - 81.6
Velo Range
5/31/26
1619
Spin Rate (avg)
5/31/26
Curveball
73 - 74
Velo Range
6/04/26
-
Spin Rate (avg)
Slider
73.1 - 79.1
Velo Range
5/31/26
2127
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).
90.7
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
89.9
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).
2155
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.
24.0
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).
80.8
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).
1458
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).
2127
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).
75.6
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).
1619
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).
SoCal ProCase
May 31, 2026
Trackman - Fastball
90.7
Velocity (max)
89.2 - 90.6
Velo Range
90.8
Eff Velocity (avg)
2,251
Spin Rate (max)
2,155
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Slider
79.1
Velocity (max)
73.1 - 79.1
Velo Range
75.5
Eff Velocity (avg)
2,217
Spin Rate (max)
2,127
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
81.6
Velocity (max)
79.9 - 81.6
Velo Range
81.0
Eff Velocity (avg)
1,531
Spin Rate (max)
1,458
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Splitter
76.3
Velocity (max)
75.0 - 76.3
Velo Range
75.7
Eff Velocity (avg)
1,087
Spin Rate (max)
1,619
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Pitch Scores
Pitching Velos
2026
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
91.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
89.5
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
73.5
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
78.5
Game Performance
Vizual Edge
Pitch Ai
Notes
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Comments
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Contact
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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.
Freshman pitchers at JSerra aren’t the norm, so when you see one you immediately know that Brett Kay believes they’ve got a chance to be special down the road. That’s certainly the case with Janeski, the No. 4 ranked player in California’s 2028 class. At 6’3” his size belies his age and the only thing that trumps his size is his stuff on the mound. With a fastball at 86-88mph, the pitch flashes some run back to the arm side that allows him to start pitches on the outer half and still catch the corner for strikes. The slider at 73-74mph flashes late break away from righties with some sharpness that has potential to develop into a true weapon. Showed a change up at 80-81mph with late fade to lefties and at the back foot of righties. Adds some deception with a full shoulder turn showing his numbers to the hitters before his loose, whippy arm blazes through a low 3/4 slot with some effort. Tunnels all his pitches well and is an easy mover on the mound.