Prep Baseball Report

CLASS OF 2025

OF
SS

Rock
Duer

Marcus (HS) • TX
5' 8" • 171LBS
S/R • 18yr 7mo
Travel Team: Midland Bulls
2025 National

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2025 State

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Commitment

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Best of Snapshot
Physical
Positional Tools Velos / Pop
TrackMan Hitting
Blast
Swift
VALD
Vizual Edge
News
Comments
Contact

Best Of Stats

Hitting
24.2
Hand Speed (max)
1/11/25
79.8
Bat Speed (max)
1/11/25
28.1
Rot. Acc (max)
9/20/24
56
Hard Hit %
1/11/25
Power
102.6
Exit Velocity (max)
1/11/25
90.7
Exit Velocity (avg)
1/11/25
376
Distance (max)
1/11/25
69
Sweet Spot %
1/03/23
Run
6.51
60-yd
7/15/24
3.67
30-yd
7/15/24
1.56
10-yd
7/15/24
21.6
Run speed (max)
7/15/24
Defense
84
INF Velo
7/17/23
93
OF Velo
1/11/25
-
C Velo
-
Pop Time

Positional Tools

2025
2024
2023
2022
2021
60 Yard Dash
6.74
Infield Velocity
82.0
Outfield Velocity
93.0
Power / Speed Score
15.2
60 Yard Dash
6.51
Infield Velocity
81.0
Outfield Velocity
90.0
Power / Speed Score
15.0
60 Yard Dash
7.06
Infield Velocity
84.0
Outfield Velocity
87.0
Power / Speed Score
13.5
60 Yard Dash
7.17
Infield Velocity
83.0
Outfield Velocity
89.0
Power / Speed Score
12.5
60 Yard Dash
7.40
Infield Velocity
75.0
Outfield Velocity
77.0
Power / Speed Score
10.8
North Texas Preseason All-State (Invite-Only)
Jan 11, 2025
Position
6.74
60-yard
82
INF Velo
93
OF Velo
Power Speed Score
Texas State Games: Upperclass (2025's & 2026's)
Sep 20, 2024
Position
6.69
60-yard
89
OF Velo
Power Speed Score
Dallas Summer ID - Session II
Jul 15, 2024
Position
6.51
60-yard
81
INF Velo
90
OF Velo
Power Speed Score
Top Prospect Games: North Texas (Invite-Only)
Jul 17, 2023
Position
84
INF Velo
87
OF Velo
Power Speed Score
Fort Worth Preseason ID
Jan 3, 2023
Position
7.06
60-yard
81
INF Velo
83
OF Velo
Power Speed Score
DFW Fall ID
Oct 10, 2022
Position
83
INF Velo
89
OF Velo
Power Speed Score
DFW Open
May 31, 2022
Position
7.17
60-yard
80
INF Velo
84
OF Velo
Power Speed Score
Austin Preseason ID
Jan 8, 2022
Position
7.40
60-yard
76
INF Velo
82
OF Velo
Power Speed Score
North Texas Underclass Games (Invite Only)
Jul 6, 2021
Position
7.40
60-yard
74
INF Velo
76
OF Velo
Power Speed Score
Top Prospect Showcase
Jun 22, 2021
Position
7.40
60-yard
75
INF Velo
77
OF Velo
Power Speed Score

Hitting

2025
2024
2023
2022
2021
Exit Velocity Max
102.6
Exit Velocity Avg
90.7
Distance Max
376
Distance Avg
240
Launch Angle Avg
22.7
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Exit Velocity Max
97.8
Exit Velocity Avg
88.3
Distance Max
351
Distance Avg
183
Launch Angle Avg
14.2
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Exit Velocity Max
95.5
Exit Velocity Avg
79.0
Distance Max
350
Distance Avg
250
Launch Angle Avg
27.0
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Exit Velocity Max
89.5
Exit Velocity Avg
75.5
Distance Max
344
Distance Avg
187
Launch Angle Avg
26.3
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Exit Velocity Max
80.2
Exit Velocity Avg
70.6
Distance Max
208
Distance Avg
106
Launch Angle Avg
10.6
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
North Texas Preseason All-State (Invite-Only)
Jan 11, 2025
Trackman - Hitting
102.6
Exit Velocity (max)
90.7
Exit Velocity (avg)
240
Distance (avg)
376
Distance (max)
Hard Hit %
Barrel %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Texas State Games: Upperclass (2025's & 2026's)
Sep 20, 2024
Trackman - Hitting
97.8
Exit Velocity (max)
90.2
Exit Velocity (avg)
175
Distance (avg)
344
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Dallas Summer ID - Session II
Jul 15, 2024
Trackman - Hitting
96.8
Exit Velocity (max)
86.9
Exit Velocity (avg)
189
Distance (avg)
351
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Top Prospect Games: North Texas (Invite-Only)
Jul 17, 2023
Trackman - Hitting
95.5
Exit Velocity (max)
86.5
Exit Velocity (avg)
286
Distance (avg)
350
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Fort Worth Preseason ID
Jan 3, 2023
Trackman - Hitting
90.7
Exit Velocity (max)
73.2
Exit Velocity (avg)
217
Distance (avg)
330
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
DFW Fall ID
Oct 10, 2022
Trackman - Hitting
89.5
Exit Velocity (max)
75.6
Exit Velocity (avg)
237
Distance (avg)
344
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
DFW Open
May 31, 2022
Trackman - Hitting
85.9
Exit Velocity (max)
76.8
Exit Velocity (avg)
158
Distance (avg)
289
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Austin Preseason ID
Jan 8, 2022
Trackman - Hitting
82.7
Exit Velocity (max)
73.4
Exit Velocity (avg)
166
Distance (avg)
273
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
North Texas Underclass Games (Invite Only)
Jul 6, 2021
Trackman - Hitting
80.2
Exit Velocity (max)
63.9
Exit Velocity (avg)
95
Distance (avg)
208
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Top Prospect Showcase
Jun 22, 2021
Trackman - Hitting
79.2
Exit Velocity (max)
77.3
Exit Velocity (avg)
117
Distance (avg)
204
Distance (max)
Sweet Spot %
Line Drive %
Ground Ball %

Hitting

2025
2024
2023
2022
2021
Hand Speed Max
24.2
Hand Speed Avg
22.8
Bat Speed Max
79.8
Bat Speed Avg
71.5
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Hand Speed Max
24.2
Hand Speed Avg
22.7
Bat Speed Max
78.0
Bat Speed Avg
72.4
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Hand Speed Max
22.4
Hand Speed Avg
21.0
Bat Speed Max
71.5
Bat Speed Avg
67.6
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Hand Speed Max
22.1
Hand Speed Avg
19.2
Bat Speed Max
67.9
Bat Speed Avg
62.7
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Hand Speed Max
20.1
Hand Speed Avg
18.1
Bat Speed Max
63.6
Bat Speed Avg
57.4
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
North Texas Preseason All-State (Invite-Only)
Jan 11, 2025
Blast - Hitting
24.2
Hand Speed (max)
22.8
Hand Speed (avg)
79.8
Bat Speed (max)
71.5
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Texas State Games: Upperclass (2025's & 2026's)
Sep 20, 2024
Blast - Hitting
24.0
Hand Speed (max)
22.2
Hand Speed (avg)
76.3
Bat Speed (max)
72.3
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Dallas Summer ID - Session II
Jul 15, 2024
Blast - Hitting
24.2
Hand Speed (max)
23.2
Hand Speed (avg)
78.0
Bat Speed (max)
72.6
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Top Prospect Games: North Texas (Invite-Only)
Jul 17, 2023
Blast - Hitting
22.4
Hand Speed (max)
21.4
Hand Speed (avg)
71.5
Bat Speed (max)
70.0
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Fort Worth Preseason ID
Jan 3, 2023
Blast - Hitting
22.0
Hand Speed (max)
20.6
Hand Speed (avg)
66.9
Bat Speed (max)
64.7
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
DFW Fall ID
Oct 10, 2022
Blast - Hitting
22.1
Hand Speed (max)
20.0
Hand Speed (avg)
67.9
Bat Speed (max)
64.6
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
DFW Open
May 31, 2022
Blast - Hitting
20.3
Hand Speed (max)
18.8
Hand Speed (avg)
66.0
Bat Speed (max)
61.8
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Austin Preseason ID
Jan 8, 2022
Blast - Hitting
20.2
Hand Speed (max)
18.7
Hand Speed (avg)
62.9
Bat Speed (max)
61.7
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
North Texas Underclass Games (Invite Only)
Jul 6, 2021
Blast - Hitting
18.1
Hand Speed (max)
17.2
Hand Speed (avg)
59.1
Bat Speed (max)
55.2
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Top Prospect Showcase
Jun 22, 2021
Blast - Hitting
20.1
Hand Speed (max)
18.6
Hand Speed (avg)
63.6
Bat Speed (max)
58.7
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency

Pitching

Pitch Scores

Pitching Velos

Game Performance

2024
2023
2022
10 Yard Dash
1.56
30 Yard Dash
3.67
60 Yard Dash
6.51
Top Speed (MPH)
Vertical Jump
10 Yard Dash
1.70
60 Yard Dash
7.06
Top Speed (MPH)
RSi
Vertical Jump
10 Yard Dash
1.70
60 Yard Dash
6.91
Top Speed (MPH)
RSi
Vertical Jump
Texas State Games: Upperclass (2025's & 2026's)
Sep 20, 2024
Swift
1.64
10-yd
3.72
30-yd
6.69
60-yd
20.8
Run speed (max)
31.4
Jump Height (max)
Dallas Summer ID - Session II
Jul 15, 2024
Swift
1.56
10-yd
3.67
30-yd
6.51
60-yd
21.6
Run speed (max)
33.6
Jump Height (max)
Top Prospect Games: North Texas (Invite-Only)
Jul 17, 2023
Swift
1.73
10-yd
4.03
30-yd
7.16
60-yd
19.6
Run speed (max)
Fort Worth Preseason ID
Jan 3, 2023
Swift
1.70
10-yd
7.06
60-yd
19.3
Run speed (max)
2.20
RSI (max)
2.21
RSI (avg)
1,203
Jump Power (max)
27.1
Jump Height (max)
27.1
Jump Height (avg)
DFW Fall ID
Oct 10, 2022
Swift
1.70
10-yd
6.91
60-yd
19.6
Run speed (max)
2.51
RSI (max)
2.51
RSI (avg)
1,316
Jump Power (max)
29.3
Jump Height (max)
29.3
Jump Height (avg)
2025
10 Yard Dash
1.65
30 Yard Dash
3.79
60 Yard Dash
6.74
Top Speed (MPH)
RSI
Vertical Jump
North Texas Preseason All-State (Invite-Only)
Jan 11, 2025
Vald
1.65
10-yd
3.80
30-yd
6.74
60-yd
20.8
Run speed (max)
1.58
RSI (max)
21.7
Jump Height (max)

Vizual Edge

2023
Edge Score
71.61

Pitch Ai

Notes

Comments

1/11/25
Rock Duer, Marcus (TX), 2025 Navarro JC
Positional Profile: OF/SS SW INF/OF Good build to add strength in future. Shows quickness to actions, plus runner, moves well. Will get his share of SB's in future. Versatile defensive player, in OF can play all 3 spots, speed present to play CF. Developing infielder showing solid actions, probably fits more at 2nd on the dirt. Solid contact at plate with good bat/power combo in future. Opportunities present to adjust. Chance power exceeds in future. Strong, athletic, explosive.
Body: 5-8, 171-pounds. Good build, will continue to add strength in future. Strength has improved since last seen in 2024.
Hit: SH. RH…lands in good position to hit, nice job of using lower 1/2 in swing. Gets quick with front side at times, when on time, good swing contact. LH…lands in good position to hit, nice job of using lower 1/2. Left shoulder lean over hip creates uphill path, work to be more upright, made adjustment round 2 with solid contact. Overall solid both sides with minor tweaks. RH/LH swings … barrel/hands in good launch position. Shows solid bat/hand speed. Swing works well with solid contact, will be firmed with approach adjustments. 71.5 mph bat speed with 22 G's of rotational acceleration.
Power: 103 max exit velocity, averaged 90.7 mph. 376' max distance. Solid bat/power combo in future. Hit over power. Swing works. Opportunities for adjustments with hit approach. Strong base to work from.
Arm: RH. INF-82 mph. OF-93 mph. Arm works well in both INF and OF. Shows feel to adjust arm action to position. Throws have carry, especially evident in OF throws.
Defense: OF moves well to baseball, breaks down well to field, good exchange glove to hand. Occasionally takes extra step to throw in OF. INF Solid 1st step, feet work well getting to baseball, does a good job of playing thru ball with feet. Hands work fine, can improve fielding more out front, bend knees, fielding ball out in front. Overall, solid defender with versatility.
ATH: 6.74 runner in the 60. 1.65 and 3.80 in the 10 and 30 yard splits. Plus runner, quickness to start. Runs well. Will get his share of SB's in future. 21.70 max vertical.
1/11/25
A switch-hitter who’s gotten noticeably stronger, OF/SS Rock Duer (Marcus, 2025; Navarro College commit) profiles as a dynamic top-of-the-order bat. Standing 5’8” and 173 pounds, he pairs his 6.69 speed in the 60-yard dash with a 93 mph arm from the outfield, showcasing plus range and the ability to cover center field effectively. Offensively, Duer has recorded a 102.6 mph max exit velocity, highlighting his surprising pop despite a smaller frame. Known for his energy and winning mentality, he’s a steady performer who brings a high level of competitiveness to the field.
9/20/24

Rock Duer, Marcus (TX), 2025
Positional Profile: OF/SS SH/CF…athletic, will get stronger. Solid approach to hit with couple of opportunities with swing adjustments creating upside to hit potential. Solid defender in the OF with plus range. Steady performer. Good tools and make up.
Body: 5-8, 173-pounds. Smaller with good build/frame to add strength. Live body.
Hit: SH. RHH…Lands in solid position to hit after stride. Rotational back foot, does a good job using lower 1/2 in swing. Shows balance at plate. LHH…Lands in good position to hit, rotational back foot, gets stuck at times, when rotated fully and on time works well. RHH..Barrel/hands start in good position to hit. Solid bat/hand speed present. Hands work well in swing. Slight scope swing present with barrel creating fly ball contact. Would like to see barrel take more direct path to zone. LHH…hands in good position to launch, barrel has slight tip over top of cap creating some length to start. Scoop swing creating lift into hit zone. Would love see less tilt and more direct path in zone with barrel. Line drives/doubles should be his mindset. 72.3 mph bat speed with 20 G's of rotational acceleration.
Power: 98 max exit velocity, averaged 90.2 mph. 344' max distance. Hit over power with upside to hit ability. Couple of opportunities present for adjustments to swing to improve contact consistency and line drive contact.
Arm: RH. OF-89 mph. Arm speed present. Behind crow hop step slows momentum of feet throwing. Needs long toss program, would recommend trying crow hop in front seeing if comfortable and allowing foot speed to continue, also opens lead shoulder, keeping closed will help throw consistency.
Defense: Moves well to baseball, breaks down to field well. Shows range in OF, can play CF.
ATH: 6.69 runner in the 60. 1.64 and 3.72 in the 10 and 30 yard splits. Good start, acceleration. Good mover. 31.40 max vertical.

7/15/24

Rock Duer, Marcus (TX), 2025
Positional Profile: OF/SS Tools. Plus/WAA runner with quickness, SB threat. Bat quickness/speed present, solid contact off barrel. Defensive versatility. Good player. Mid majors, JC's should all be in.
Body: 5-8, 171-pounds. Smaller with some strength, will get stronger.
Hit: RHH. SW hitter, LHH falls back creating some lift, lower half works well. RHH approach, backside consistency can improve. Upside to both sides with adjustments. LHH plus bat/hand speed. RHH has natural bat/hand speed, hindered some by lower 1/2 inconsistencies. 72.6 mph bat speed with 22 G's of rotational acceleration.
Power: 97 max exit velocity, averaged 86.9 mph. 351' max distance. Solid contact off barrel, hard hit consistency better LH. Line drive contact. Pull side power both sides of plate. Upside to bat/power combo.
Arm: RH. INF-81 mph. OF-90 mph. Arm speed present with carry
Defense: Defensively versatility present. Presently better in OF, 2B is solid option with firming of actions.
ATH: 6.51 runner in the 60. 1.56 and 3.67 in the 10 and 30 yard splits. Quickness, WAA runner, SB threat on bases. 33.60 max vertical.

1/03/23

Positional Profile: SS/OF Duer is a talented switch hitter who generates some power from both sides with quick hands.Shows good footwork and arm from both the outfield and infield.
Body: 5-8, 160-pounds.
Hits: SH. 50/50 set up with some rythym LHH and RHH swing mirror each other well. Has good bat speed with some loft in his swing.
Power: 91 max exit velocity, averaged 73.2 MPH. 330' max distance. has good rythym and works up through the ball to drive it with backspin.
Arm: RH. INF-81 mph.OF-83 mph. long arm action in OF ball comes out clean with average velo. Short arm action from low slot in IF. Can get a little to low sometimes
Defense: charges the ball nicely in OF really working through it,INF arm action will likely make him a 2B in future.
Run: 7.06 runner in the 60.

10/10/22

Positional Profile: SS/OF Duer continues to develop each time we have seen him over the past couple years.
Body: 5-8, 150-pounds.
Hits: SH. Balanced, slightly crouched stance, leg lift load trigger, some rhythm in the barrel pre-pitch with a barrel tilt swing trigger. Direct path to the ball on an uphill swing plane from both sides hitting balls to all fields.
Power: 90 max exit velocity, averaged 75.6 MPH. 344' max distance.
Arm: RH. INF-83 mph.OF-89 mph. Long arm action, accurate throws on the bag.
Defense: Infield: Good footwork fielding the ball in rhythm towards his target with a clean, consistent transfer. Outfield: Good footwork getting to the ball, fields the ball with momentum towards his target and a clean transfer.
Run: 6.91 runner in the 60.

1/08/22

 

Positional Profile: 2B

Body: 5-foot-6, 135 pounds. 

Hit: SH. LH: Balanced stance, leg lift load trigger, hands go back from pre-pitch rhythm with a barrel tilt swing trigger, slightly uphill swing trigger hitting fly balls and ground balls to the pull side. RH: Same setup and swing mechanics as the left side, keeps his hands inside the ball using the opposite field well hitting fly balls and some line drives. 

Power: 81.1 mph max exit velocity in BP, 67.6 mph average exit velocity, 284 feet max distance.

Arm: RH. INF - 76 mph. OF - 82 mph. Short arm action, accurate throws.  

Defense: Worked in the infield and outfield. Good footwork getting into fielding position, fielding the ball in rhythm towards his target with a clean funnel to release at times on the infield. Good footwork getting to the ball, fielding the ball with momentum towards his target and a clean funnel to release in the outfield. 

Run: 7.40 runner in the 60.

7/06/21

 

Positional Profile: 2B/OF

Body: 5-foot-5, 125 pounds. 

Hit: SH. Balanced stance, small leg lift load trigger leaning into back leg, takes hands back ever so slightly to trigger swing, uphill swing plane, middle of the field to pull-side gap approach on both sides of the plate. 

Power: 80.18 mph max exit velocity in BP, 63.91 mph average exit velocity, and 208 feet max distance.

Arm: RH. INF - 74 mph. OF - 76 mph. Long arm action, ¾ slot, accurate throws. 

Defense: Worked in infield and outfield. Stays back on the ball, fields the ball out in front, feet keep moving through the throw at times, clean funnel to release on the infield. Fields the ball in rhythm towards target at times, fields the ball off of glove foot, clean funnel to release in the outfield.

Run: 7.40 runner in the 60.

6/22/21

 

Positional Profile: 2B/SS

Body: 5-foot-5, 125 pounds.

Hit: SH. Balanced stance, lean back load trigger with leg kick, slight barrel tilt moving hands back to trigger swing, slightly uphill swing plane, pull side tendency from the left side, middle of the field approach from right side, hit primarily ground balls and line drives. 

Power: 79.17 mph max exit velocity in BP, 77.35 mph average exit velocity, 203 feet max distance.

Arm: RH. INF - 75 mph. OF - 77 mph. Short arm action, 3/4 slot.

Defense: Worked in infield and outfield. Stays back on the ball, fields the ball out in front, feet keep moving through the throw at times, clean funnel to release on the infield. Fields the ball in rhythm towards target at times, fields the ball off of glove foot, clean funnel to release in the outfield. 

Run: 7.40 runner in the 60.

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Physical

2025
2024
Grip Strgth (LH)
Grip Strgth (RH)
Grip Strgth (LH)
Grip Strgth (RH)
North Texas Preseason All-State (Invite-Only)
Jan 11, 2025
Physical - Athlete
5' 8"
Ht
171.0
Wt
Grip Strgth (RH)
Grip Strgth (LH)
Texas State Games: Upperclass (2025's & 2026's)
Sep 20, 2024
Physical - Athlete
5' 8"
Ht
173.3
Wt
Grip Strgth (RH)
Grip Strgth (LH)
Dallas Summer ID - Session II
Jul 15, 2024
Physical - Athlete
5' 8"
Ht
171.0
Wt
Grip Strgth (RH)
Grip Strgth (LH)