86.9
Exit Velocity (max)
2/22/26
CLASS OF 2029
SS
RHP
John
Mertz
Parkway Central (HS) • MO
6' 2" • 160LBS
R/R • 15yr 5mo
Travel Team: US Nationals Coyler
6' 2" • 160LBS
R/R • 15yr 5mo
Travel Team: US Nationals Coyler
Rankings
2029 National
Rankings available to Premium Subscriber
2029 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
Player has made a commitment?
Tell us where
Best Of Stats
79
Exit Velocity (avg)
2/22/26
253
Distance (max)
2/22/26
43
Sweet Spot %
2/22/26
83
INF Velo
2/22/26
-
OF Velo
-
C Velo
-
Pop Time
Positional Tools
2026
Sign in to view rankings 
Home to First
The athlete's fastest home-to-first time in the given event year. Measured from bat-on-ball to foot-on-bag, in seconds (s).
4.27
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
83.0
Hitting
2026
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
86.9
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
79.0
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
253
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
169
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
21.0932
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.
Prospects Scout Day
Feb 22, 2026
Trackman - Hitting
86.9
Exit Velocity (max)
79.0
Exit Velocity (avg)
169
Distance (avg)
253
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
Pitching
Pitch Scores
Pitching Velos
Game Performance
Vizual Edge
Pitch Ai
Notes
News
Comments
Draft Reports
Contact
Premium Content Area
To unlock contact information, you need to purchase a ScoutPLUS subscription.
Purchase Subscription OR
Login
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.