@GTrevillian1 
86
Velocity (max)
2/24/24
CLASS OF 2025
RHP
SS
Gavin
Trevillian
Kingsford (HS) • MI
5' 9" • 170LBS
R/R • 19yr
Travel Team: ISA
Rankings
2025 National
Rankings available to Premium Subscriber
2025 State
Rankings available to Premium Subscriber
Commitment
Best Of Stats
Fastball
84 - 86
Velo Range
2/24/24
2118
Spin Rate (avg)
2/25/23
Changeup
72 - 76
Velo Range
2/24/24
1563
Spin Rate (avg)
2/25/23
Curveball
68 - 72
Velo Range
7/18/24
2268
Spin Rate (avg)
2/25/23
Slider
70 - 73
Velo Range
2/24/24
2418
Spin Rate (avg)
2/24/24
Positional Tools
Hitting
Hitting
Pitching
2024
2023
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Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
85.9
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
84.8
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).
2064
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.
24.3
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).
74.0
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).
1405
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).
71.1
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).
2418
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).
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
82.9
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
81.8
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).
2118
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).
67.6
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).
2268
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).
69.0
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).
1563
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).
Green Bay Preseason ID
Feb 24, 2024
Trackman - Fastball
85.9
Velocity (max)
83.7 - 85.9
Velo Range
82.1
Eff Velocity (avg)
2,129
Spin Rate (max)
2,064
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
73.4
Velocity (max)
69.5 - 72.6
Velo Range
68.5
Eff Velocity (avg)
2,454
Spin Rate (max)
2,418
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
75.8
Velocity (max)
72.5 - 75.5
Velo Range
71.7
Eff Velocity (avg)
1,524
Spin Rate (max)
1,405
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Green Bay Preseason ID
Feb 25, 2023
Trackman - Fastball
82.9
Velocity (max)
80.9 - 82.7
Velo Range
80.0
Eff Velocity (avg)
2,202
Spin Rate (max)
2,118
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
68.7
Velocity (max)
66.7 - 68.6
Velo Range
65.1
Eff Velocity (avg)
2,281
Spin Rate (max)
2,268
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - ChangeUp
70.8
Velocity (max)
67.1 - 70.8
Velo Range
66.5
Eff Velocity (avg)
2,186
Spin Rate (max)
1,563
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
2023
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
2024
2023
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
86.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
83.0
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
67.8
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
74.0
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
71.5
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
83.0
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
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
68.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
69.0
Game Performance
Vizual Edge
Pitch Ai
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RHP Gavin Trevillian (Kingsford, MI, 2025) has an up-tempo delivery that allows him to work quickly down the mound, a dynamic mover. It’s a repeatable delivery with a quick arm and strong finish, generating good velocity despite his short frame. The right-hander worked mostly 83-85, reaching 85.9 mph on the fastball. The fastball has a downhill angle with feel to work in the zone. Likewise, his changeup was around the zone at 72-76 with some depth, a pitch the junior threw with fastball arm speed. The slider is a notch slower at 70-73 mph but with a sharp, 10/4 break. Trevillian has the makings of a strong three-pitch mix.
Positional Profile: RHP/SS
Body: 5-10, 170-pounds. Thick sturdy frame, good proportions with projection.
Delivery: Up tempo, aggressive down the mound, repeats, dynamic mover through delivery, finishes through home.
Arm Action: RH. Full arc, quick arm.
FB: T86, 84-86 mph. Downhill with feel to get through areas of the zone, good finish. T2129, 2064 average rpm.
SL: 70-73 mph. Sharpness to the pitch with 10/4 break. T2454, 2418 average rpm.
CH: 72-76 mph. Good arm speed, can land, some depth at the plate. T1524, 1405 average rpm.
Positional Profile: RHP/SS
Body: 5-10, 165-pounds. Athletic, good proportions, strength throughout.
Delivery: Rhythmic, athletic, quick, medium leg kick, medium leg swing finish through home.
Arm Action: RH. Medium on-line arm swing, 3/4 slot, quick arm.
FB: T83, 81-83 mph. Down hill gets it to areas, late cut life. T2202, 2118 average rpm.
CB: 67-69 mph. 10/4 shape and break, can land and get below. T2281, 2268 average rpm.
CH: 67-71 mph. Good sell, shows late depth and fade. T2186, 1563 average rpm.
Positional Profile: RHP/SS
Body: 5-10, 165-pounds. Athletic, good proportions, strength throughout.
Delivery: Rhythmic, athletic, quick, medium leg kick, medium leg swing finish through home.
Arm Action: RH. Medium on-line arm swing, 3/4 slot, quick arm.
FB: T83, 81-83 mph. Down hill gets it to areas, late cut life. T2202, 2118 average rpm.
CB: 67-69 mph. 10/4 shape and break, can land and get below. T2281, 2268 average rpm.
CH: 67-71 mph. Good sell, shows late depth and fade. T2186, 1563 average rpm.
From the Upper Peninsula, two Kingsford, Mich., sophomores made the trip south to Green Bay: RHP/INF Gavin Trevillian (2025) stands at an athletic 5-foot-10, 165-pounds, and showed good proportions with strength throughout. This was the Michigan native’s first PBR event, and he impressed our staff. Trevillian showed an athletic and rhythmic delivery with a quick arm that helped his fastball sit 81-83 mph with late cut actions. His curveball showed 10/4 shape with the ability to land for strikes, and he threw a changeup that showed late depth and fade. MIF Garret Brown (2025) has a clean, efficient right-handed swing and he’s an above-average athlete as a 7.12 runner.
RHP/INF Gavin Trevillian (2025) stands at an athletic 5-foot-10, 165-pounds, and showed good proportions with strength throughout. This was the Michigan native’s first PBR event, and he impressed our staff. Trevillian showed an athletic and rhythmic delivery with a quick arm that helped his fastball sit 81-83 mph with late cut actions. His curveball showed 10/4 shape with the ability to land for strikes, and he threw a changeup that showed late depth and fade.