Prep Baseball Report

Murfreesboro Summer ID: TrackMan Files


Colin Chamblin
Deep South Operations & Area Scout

MURFREESBORO, TN - The Prep Baseball Tennessee Murfreesboro Summer ID was held on Tuesday, July 9th at Riverdale High School in Murfreesboro, TN. Players went through an extended pro-style workout that included batting practice using Trackman, ran the 60-yard dash using Swift Performance, and much more. Pitchers were able to get numbers and metrics on TrackMan during a bullpen setting. There were some players who showed up and continued to build off of prior performances, but there were also some new names who jumped onto our radar with a strong showing at the event.

Continuing our post-event coverage for this event, we take a look at some of the standouts from the event. Below you will find scout notes and video on some of the top performers from the Chattanooga Summer ID.

Click HERE to view all position stats from the event.

 

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MAX FASTBALL & AVERAGE SPIN RATE

Rank Name State School Class Pos Velocity (max)
1 Ashton Blesie TN Nolensville High School 2025 RHP 89.2 mph
2 Ryan Russell TN Siegel High School 2026 2B 85.5 mph
3 AJ Dungan TN Mt. Juliet 2028 RHP 83.9 mph

Rank Name State School Class Pos Spin Rate (avg)
1 Ryan Russell TN Siegel High School 2026 2B 2355 rpm
2 Ashton Blesie TN Nolensville High School 2025 RHP 1945 rpm
3 AJ Dungan TN Mt. Juliet 2028 RHP 1904 rpm
4 Grant Kruger TN Green Hill 2027 C 1880 rpm
5 Shaeffer Sitton TN Stone Memorial 2028 3B 1879 rpm

Max Fastball Velocity: This metric calculates the speed of the pitch as it’s released from the pitcher’s hand.

Spin Rate: This metric calculates the rate of spin on the baseball as it leaves the pitcher’s hand, measured in revolutions per minute (rpm). Historical data shows that high-spin fastballs lessen the impact of gravity, allowing for more ‘rise’ (or less fall, in other words) as it carries through the zone. Low-spin fastballs typically indicate the pitch has greater horizontal action, often making it tougher to square up, but generally easier to make contact with, leading to more ground balls, while high-spin fastballs show a correlation with swings and misses.

AVERAGE FASTBALL HORIZONTAL MOVEMENT

Rank Name State School Class Pos HM (avg)
1 William McGlacken TN Spring Hill High School 2025 3B 17.3
2 Colton Vivrette TN Wilson Central 2026 SS 16.4
3 Ashton Blesie TN Nolensville High School 2025 RHP 16.3
4 Grant Kruger TN Green Hill 2027 C 13.7
5 AJ Dungan TN Mt. Juliet 2028 RHP 13.0

Horizontal Break: Outlined on TrackMan’s own website: “... horizontal movement is measured in inches between where the pitch actually crosses the front of home plate side-wise, and where it would have crossed home plate side-wise if had it traveled in a perfectly straight line from release. A positive number means the break was to the right from the pitcher’s perspective, while a negative number means the break was to the left from the pitcher’s perspective.”

AVERAGE SLIDER SPIN RATE

Rank Name State School Class Pos Spin Rate (avg)
1 Ashton Blesie TN Nolensville High School 2025 RHP 2433
2 William McGlacken TN Spring Hill High School 2025 3B 1996
3 Colton Vivrette TN Wilson Central 2026 SS 1975

Spin Rate: The metric calculates how fast the ball is spinning as it leaves the pitcher’s hand, reported in the number of times the pitched ball would spin per minute (“revolutions per minute” or “rpm”).

AVERAGE CURVEBALL SPIN RATE

Rank Name State School Class Pos Spin Rate (avg)
1 Ryan Russell TN Siegel High School 2026 2B 2446 rpm
2 Mason McWhirter TN Clarkrange High School 2028 SS 1613 rpm
3 Grant Kruger TN Green Hill 2027 C 1492 rpm

Spin Rate: The metric calculates how fast the ball is spinning as it leaves the pitcher’s hand, reported in the number of times the pitched ball would spin per minute (“revolutions per minute” or “rpm”).

AVERAGE CHANGEUP HORIZONTAL MOVEMENT

Rank Name State School Class Pos HM (avg)
1 Ashton Blesie TN Nolensville High School 2025 RHP 16.5
2 AJ Dungan TN Mt. Juliet 2028 RHP 16.0
3 Colton Vivrette TN Wilson Central 2026 SS 11.9

Horizontal Break: This metric measures the distance, measured in inches, between where the pitch actually crosses the front of home plate side-wise, and where it would have crossed home plate side-wise if had it traveled in a perfectly straight line from release. A positive number means the break was to the right from the pitcher’s perspective, while a negative number means the break was to the left from the pitcher’s perspective.

PEAK EXIT VELOCITY (HITTING)

Rank Name State School Class Pos Exit Velocity (max)
1 Ryan Russell TN Siegel High School 2026 2B 98.4 mph
2 William McGlacken TN Spring Hill High School 2025 3B 92.1 mph
3 Grant Kruger TN Green Hill 2027 C 90.7 mph
4 Brady Patterson TN Mount Juliet High School 2026 OF 89.4 mph
5 Colton Vivrette TN Wilson Central 2026 SS 88.9 mph

Exit Velocity: This metric measures the speed of the ball, measured in miles per hour, as it comes off the bat at the moment of contact.

PEAK ESTIMATED BATTED DISTANCE (HITTING)

Rank Name State School Class Pos Distance (max)
1 Mason McWhirter TN Clarkrange High School 2028 SS 334 ft
2 Ryan Russell TN Siegel High School 2026 2B 329 ft
3 Grant Kruger TN Green Hill 2027 C 314 ft

Distance: This metric measures the estimated “carry flat” distance, measured in feet, meaning the distance that the ball travels before it lands, or would have landed if it were not caught or obstructed.

 

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