84.7
Velocity (max)
2/18/23
CLASS OF 2023
LHP
Gerrit
Lyyski
Spring Lake (HS) • MI
6' 1" • 175LBS
L/R • 19yr
Travel Team: West Michigan Riptide
6' 1" • 175LBS
L/R • 19yr
Travel Team: West Michigan Riptide
Rankings
2023 National
Rankings available to Premium Subscriber
2023 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
Player has made a commitment?
Tell us where
Best Of Stats
Fastball
80.5 - 83.6
Velo Range
2/18/23
1904
Spin Rate (avg)
7/06/22
Changeup
74.7 - 75.5
Velo Range
2/18/23
1997
Spin Rate (avg)
7/06/22
Curveball
65.6 - 68.5
Velo Range
7/06/22
2295
Spin Rate (avg)
7/06/22
Positional Tools
Hitting
Hitting
Pitching
2023
2022
Sign in to view rankings 
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
84.7
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
82.0
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).
1818
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.
22.2
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).
66.2
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).
2126
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).
75.1
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).
1743
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).
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
79.2
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
77.2
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).
1904
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.
24.7
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).
67.0
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).
2295
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).
72.5
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).
1997
2023 Western Michigan Preseason ID
Feb 18, 2023
Trackman - Fastball
84.7
Velocity (max)
80.5 - 83.6
Velo Range
81.0
Eff Velocity (avg)
1,952
Spin Rate (max)
1,818
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
67.0
Velocity (max)
65.1 - 67.0
Velo Range
64.3
Eff Velocity (avg)
2,167
Spin Rate (max)
2,126
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
75.5
Velocity (max)
74.7 - 75.5
Velo Range
74.2
Eff Velocity (avg)
1,782
Spin Rate (max)
1,743
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
2022 Michigan Prospect Games (Invite Only)
Jul 6, 2022
Trackman - Fastball
79.2
Velocity (max)
76.0 - 78.4
Velo Range
75.2
Eff Velocity (avg)
2,162
Spin Rate (max)
1,904
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Curveball
68.6
Velocity (max)
65.6 - 68.5
Velo Range
65.3
Eff Velocity (avg)
2,427
Spin Rate (max)
2,295
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
72.5
Velocity (max)
1,997
Spin Rate (max)
1,997
Spin Rate (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Pitch Scores
2022
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
Curveball
Hammer+
A hammer breaking ball drops vertically with velocity through the zone, or 12-to-6 movement. Hammer+ of 100 is MLB average.
Curveball
Sweep+
A sweeping breaking ball moves horizontally with velocity through the zone. Sweep+ of 100 is MLB average.
Pitching Velos
2022
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
75.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
73.5
Game Performance
2022
RSi
The reactive strength index measurement of an athlete's explosiveness by comparing their jump height to the ground contact time in between their jumps. On a scale of 0-5.
Vertical Jump
A measure of any athlete's body strength and reach calculated from the flight time divided by the contact time.
2022 Michigan Prospect Games (Invite Only)
Jul 6, 2022
Swift
1.26
RSi (max)
1.26
RSi (avg)
1,634
Jump Power (max)
30.4
Jump Height (max)
30.2
Jump Height (avg)
Visual Edge
Pitch Ai
Notes
News
- 2023 Western Michigan Preseason ID - Quick Hits - Feb 23, 2023
- 2023 Western Michigan Preseason ID Advanced Metrics: Trackman Analytics - Pitching Leaderboard - Feb 21, 2023
- 2023 Western Michigan Preseason ID Advanced Metrics: Hitting/Speed Leaderboard - Feb 21, 2023
- Results From 2023 Western Michigan Preseason ID - Feb 19, 2023
- Results From 2022 Michigan Prospect Games - Jul 7, 2022
Comments
Draft Reports
Contact
Premium Content Area
To unlock contact information, you need to purchase a ScoutPLUS subscription.
Purchase Subscription OR
Login
Gerrit Lyyski: LHP, (2023) Spring Lake, MI. 6-foot-1, 175-pound. Smooth athletic on the mound, showed a quick loose arm action and a high ¾ ¾ arm angle with good arm speed Tilt-and-topple type pitcher who shows high effort. Has a low balance point with even uphill shoulders. Lands closed with upright recoil finish. (Max spin 1952; Avg 1817).
Gerrit Lyyski: LHP, (2023) Spring Lake, MI. 6-foot, 165-pound. Capable athletic on the mound, showing good arm speed he had a quick short arm action and a ¾ arm angle. Stretch only drop-and-drive type pitcher who shows decent effort. In line shoulders and a consistent balance point. Lands closed with a falling off finish. (Max spin 2162; Avg 1904).
Gerrit Lyyski: LHP, (2023) Spring Lake, MI. 6-foot, 165-pound. Capable athletic on the mound, showing good arm speed he had a quick short arm action and a ¾ arm angle. Stretch only drop-and-drive type pitcher who shows decent effort. In line shoulders and a consistent balance point. Lands closed with a falling off finish. (Max spin 2162; Avg 1904).