The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
6.74
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
82.0
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
93.0
Power / Speed Score
A simple calculation that divides the athlete’s Exit Velocity Max by the athlete’s 60 Yard Dash time for the given event year. For example, 98 MPH / 7.00s = 14.00.
15.2
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
6.51
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
81.0
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
90.0
Power / Speed Score
A simple calculation that divides the athlete’s Exit Velocity Max by the athlete’s 60 Yard Dash time for the given event year. For example, 98 MPH / 7.00s = 14.00.
15.0
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.06
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
84.0
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
87.0
Power / Speed Score
A simple calculation that divides the athlete’s Exit Velocity Max by the athlete’s 60 Yard Dash time for the given event year. For example, 98 MPH / 7.00s = 14.00.
13.5
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.17
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
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
89.0
Power / Speed Score
A simple calculation that divides the athlete’s Exit Velocity Max by the athlete’s 60 Yard Dash time for the given event year. For example, 98 MPH / 7.00s = 14.00.
12.5
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.40
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
75.0
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
77.0
Power / Speed Score
A simple calculation that divides the athlete’s Exit Velocity Max by the athlete’s 60 Yard Dash time for the given event year. For example, 98 MPH / 7.00s = 14.00.
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.56
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
3.67
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
6.51
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
Vertical Jump
A measure of any athlete's body strength and reach calculated from the flight time divided by the contact time.
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.70
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.06
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
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.
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.70
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
6.91
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
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.
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.65
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
3.79
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
6.74
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
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.
The highest Edge Score within the given year. Edge Score is a comprehensive score that takes the core-six visual skills into account, providing an assessment of an athlete’s overall visual ability.
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.
Draft Reports
Contact
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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.
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.
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.
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.
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.
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.
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.
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.
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.
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.