Mid-Atlantic Dirtbags Scout Day: Blast Motion Hitting Data
August 10, 2021
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28 players from the Mid-Atlantic Dirtbags organization participated last Sunday in a Scout Day at the Gilman School. Players were put through a pro-style workout and threw bullpens in front of our PBR Maryland staff with Blast and TrackMan on hand to capture and record data.
One of the important tools Prep Baseball Report has implemented at its events is the use of Blast Motion sensors. During batting practice, the Blast Motion sensors measure Swing and Impact Metrics across several categories. Swing metrics measure pre-impact mechanics centered around plane, connection, and rotation while impact metrics measure pre-impact performance outcomes based on ball contact.
With the Blast Motion sensor, we were able to collect data from every swing taken by each prospect registered to receive data as part of their package at the event. Below is the full release of the Blast Motion metrics collected including: Bat Speed, On Plane Efficiency, Peak Hand Speed, and Rotational Acceleration.
The Blast Motion metrics are also uploaded into their profiles following the completion of the event providing insight into areas that could be improved upon as well as helping paint a clear picture of the player to the college and professional scouts doing their research on prospects they may be interested in.
CLICK HERE FOR SORTABLE PLAYER BLAST MOTION DATA
BLAST MOTION DATA
MAX BAT SPEED
Bat Speed is the observed speed of the sweet spot of the bat at impact. For more info: Blast Bat Speed
MLB Avg: 66-78 mph | College: 66-75 mph | HS Varsity: 60-70 mph
| Rank | Name | State | School | Class | Pos | Bat Speed (max) |
| 1 | Dominic Moats | NC | Pro5 Academy | 2024 | OF | 72.3 mph |
| 2 | Ryan Perry | MD | Calvert Hall | 2023 | SS | 71.5 mph |
| 3 | Mark Shelley | MD | Sparrows Point | 2022 | 1B | 70.6 mph |
| 4 | Justin Laro | MD | Sparrows Point | 2024 | 1B | 68.6 mph |
| 5 | Riley Smith | MD | Urbana | 2023 | OF | 68.5 mph |
| 6 | Cooper Sidell | MD | Gilman | 2023 | RHP | 67.5 mph |
| 7 | Blake Paquette | MD | Gilman | 2023 | CF | 66.8 mph |
| 8 | Brennan Kwiatkowski | MD | Calvert Hall | 2024 | C | 66.5 mph |
| ^ | Ryan Maxey | MD | Georgetown Prep | 2024 | SS | 66.5 mph |
| 9 | Nick Bournousouzis | MD | Calvert Hall | 2024 | C | 66.4 mph |
| 10 | Ryan Zickefoose | MD | Sparrows Point | 2024 | 1B | 66.2 mph |
| ^ | Gavin Watkins | MD | Catoctin | 2024 | RHP | 66.2 mph |
| 11 | Gavin Hughes | MD | Walkersville | 2024 | C | 65.8 mph |
| 12 | Adam Hicks | MD | Gilman | 2023 | OF | 65.6 mph |
| ^ | Andrew Purcell | MD | Urbana | 2023 | C | 65.6 mph |
| 13 | Kameran Locklear | MD | Sparrows Point | 2022 | OF | 64.7 mph |
| 14 | Nicolas Piermarini | VA | Gonzaga College | 2024 | OF | 64.4 mph |
| 15 | Evan Cawthorne | MD | Blake | 2022 | OF | 64.3 mph |
| 16 | Michael Hemelt | MD | Patterson Mill | 2024 | LHP | 64.0 mph |
| 17 | Dylan Remphrey | MD | Linganore | 2024 | RHP | 63.8 mph |
| 18 | Bryce Fox | MD | Glenelg Country | 2025 | CF | 62.2 mph |
| 19 | Carson Eye | MD | Brunswick | 2025 | 1B | 61.5 mph |
| 20 | Aiden Dubetsky | MD | Georgetown Prep | 2024 | SS | 59.9 mph |
| 21 | Gavin Larson | MD | Gerstell Academy | 2025 | LHP | 56.6 mph |
| 22 | Liam Ziegenfuss | MD | Manchester Valley | 2025 | 2B | 56.1 mph |
AVERAGE BAT SPEED
MLB Avg: 66-78 mph | College: 66-75 mph | HS Varsity: 60-70 mph
| Rank | Name | State | School | Class | Pos | Bat Speed (avg) |
| 1 | Dominic Moats | NC | Pro5 Academy | 2024 | OF | 70.3 mph |
| 2 | Mark Shelley | MD | Sparrows Point | 2022 | 1B | 69.6 mph |
| 3 | Brennan Kwiatkowski | MD | Calvert Hall | 2024 | C | 65.7 mph |
| 4 | Cooper Sidell | MD | Gilman | 2023 | RHP | 65.0 mph |
| 5 | Ryan Perry | MD | Calvert Hall | 2023 | SS | 64.8 mph |
| 6 | Ryan Maxey | MD | Georgetown Prep | 2024 | SS | 64.6 mph |
| 7 | Riley Smith | MD | Urbana | 2023 | OF | 64.5 mph |
| 8 | Andrew Purcell | MD | Urbana | 2023 | C | 64.1 mph |
| 9 | Justin Laro | MD | Sparrows Point | 2024 | 1B | 64.0 mph |
| 10 | Gavin Watkins | MD | Catoctin | 2024 | RHP | 63.7 mph |
| 11 | Nick Bournousouzis | MD | Calvert Hall | 2024 | C | 63.6 mph |
| 12 | Blake Paquette | MD | Gilman | 2023 | CF | 63.6 mph |
| ^ | Kameran Locklear | MD | Sparrows Point | 2022 | OF | 63.6 mph |
| 13 | Gavin Hughes | MD | Walkersville | 2024 | C | 63.1 mph |
| 14 | Evan Cawthorne | MD | Blake | 2022 | OF | 62.5 mph |
| 15 | Adam Hicks | MD | Gilman | 2023 | OF | 61.4 mph |
| 16 | Ryan Zickefoose | MD | Sparrows Point | 2024 | 1B | 61.3 mph |
| 17 | Dylan Remphrey | MD | Linganore | 2024 | RHP | 61.0 mph |
| 18 | Nicolas Piermarini | VA | Gonzaga College | 2024 | OF | 60.8 mph |
| 19 | Michael Hemelt | MD | Patterson Mill | 2024 | LHP | 60.1 mph |
| 20 | Bryce Fox | MD | Glenelg Country | 2025 | CF | 59.0 mph |
| 21 | Aiden Dubetsky | MD | Georgetown Prep | 2024 | SS | 58.7 mph |
| 22 | Carson Eye | MD | Brunswick | 2025 | 1B | 56.2 mph |
| 23 | Liam Ziegenfuss | MD | Manchester Valley | 2025 | 2B | 54.8 mph |
| 24 | Gavin Larson | MD | Gerstell Academy | 2025 | LHP | 54.8 mph |
MAX HAND SPEED
Peak Hand Speed is the observed maximum speed as measured on the handle of the bat (measured six inches from the knob of the bat). Peak Hand Speed will occur prior to the moment of impact, very close to the commit time in the swing when the wrists unhinge. For more info: Peak Hand Speed
MLB Avg: 23-29 mph | College Avg: 21-24 mph | HS Varsity Avg: 19-22 mph
| Rank | Name | State | School | Class | Pos | Hand Speed (max) |
| 1 | Ryan Perry | MD | Calvert Hall | 2023 | SS | 23.7 mph |
| 2 | Mark Shelley | MD | Sparrows Point | 2022 | 1B | 23.5 mph |
| 3 | Brennan Kwiatkowski | MD | Calvert Hall | 2024 | C | 23.4 mph |
| 4 | Adam Hicks | MD | Gilman | 2023 | OF | 22.4 mph |
| 5 | Michael Hemelt | MD | Patterson Mill | 2024 | LHP | 22.3 mph |
| 6 | Bryce Fox | MD | Glenelg Country | 2025 | CF | 21.7 mph |
| ^ | Ryan Zickefoose | MD | Sparrows Point | 2024 | 1B | 21.7 mph |
| 7 | Ryan Maxey | MD | Georgetown Prep | 2024 | SS | 21.5 mph |
| ^ | Nick Bournousouzis | MD | Calvert Hall | 2024 | C | 21.5 mph |
| 8 | Nicolas Piermarini | VA | Gonzaga College | 2024 | OF | 21.1 mph |
| ^ | Dylan Remphrey | MD | Linganore | 2024 | RHP | 21.1 mph |
| 9 | Kameran Locklear | MD | Sparrows Point | 2022 | OF | 20.7 mph |
| 10 | Justin Laro | MD | Sparrows Point | 2024 | 1B | 20.5 mph |
| 11 | Evan Cawthorne | MD | Blake | 2022 | OF | 20.4 mph |
| 12 | Carson Eye | MD | Brunswick | 2025 | 1B | 20.3 mph |
| 13 | Dominic Moats | NC | Pro5 Academy | 2024 | OF | 20.2 mph |
| 14 | Andrew Purcell | MD | Urbana | 2023 | C | 19.6 mph |
| 15 | Riley Smith | MD | Urbana | 2023 | OF | 19.2 mph |
| 16 | Blake Paquette | MD | Gilman | 2023 | CF | 18.8 mph |
| 17 | Gavin Hughes | MD | Walkersville | 2024 | C | 18.7 mph |
| 18 | Aiden Dubetsky | MD | Georgetown Prep | 2024 | SS | 18.6 mph |
| 19 | Gavin Larson | MD | Gerstell Academy | 2025 | LHP | 18.3 mph |
| 20 | Liam Ziegenfuss | MD | Manchester Valley | 2025 | 2B | 18.2 mph |
| ^ | Cooper Sidell | MD | Gilman | 2023 | RHP | 18.2 mph |
| 21 | Gavin Watkins | MD | Catoctin | 2024 | RHP | 17.2 mph |
AVERAGE HAND SPEED
MLB Avg: 23-29 mph | College Avg: 21-24 mph | HS Varsity Avg: 19-22 mph
| Rank | Name | State | School | Class | Pos | Hand Speed (avg) |
| 1 | Mark Shelley | MD | Sparrows Point | 2022 | 1B | 23.1 mph |
| 2 | Brennan Kwiatkowski | MD | Calvert Hall | 2024 | C | 23.0 mph |
| 3 | Ryan Perry | MD | Calvert Hall | 2023 | SS | 21.5 mph |
| 4 | Bryce Fox | MD | Glenelg Country | 2025 | CF | 21.2 mph |
| 5 | Ryan Maxey | MD | Georgetown Prep | 2024 | SS | 20.5 mph |
| 6 | Dylan Remphrey | MD | Linganore | 2024 | RHP | 20.5 mph |
| 7 | Nick Bournousouzis | MD | Calvert Hall | 2024 | C | 20.4 mph |
| 8 | Ryan Zickefoose | MD | Sparrows Point | 2024 | 1B | 20.3 mph |
| 9 | Dominic Moats | NC | Pro5 Academy | 2024 | OF | 19.5 mph |
| 10 | Kameran Locklear | MD | Sparrows Point | 2022 | OF | 19.4 mph |
| 11 | Justin Laro | MD | Sparrows Point | 2024 | 1B | 19.2 mph |
| 12 | Evan Cawthorne | MD | Blake | 2022 | OF | 19.0 mph |
| 13 | Nicolas Piermarini | VA | Gonzaga College | 2024 | OF | 18.9 mph |
| ^ | Michael Hemelt | MD | Patterson Mill | 2024 | LHP | 18.9 mph |
| 14 | Adam Hicks | MD | Gilman | 2023 | OF | 18.3 mph |
| 15 | Andrew Purcell | MD | Urbana | 2023 | C | 18.2 mph |
| 16 | Riley Smith | MD | Urbana | 2023 | OF | 18.1 mph |
| 17 | Blake Paquette | MD | Gilman | 2023 | CF | 17.9 mph |
| 18 | Gavin Hughes | MD | Walkersville | 2024 | C | 17.8 mph |
| 19 | Liam Ziegenfuss | MD | Manchester Valley | 2025 | 2B | 17.5 mph |
| 20 | Cooper Sidell | MD | Gilman | 2023 | RHP | 17.4 mph |
| 21 | Gavin Larson | MD | Gerstell Academy | 2025 | LHP | 17.3 mph |
| 22 | Aiden Dubetsky | MD | Georgetown Prep | 2024 | SS | 17.3 mph |
| 23 | Gavin Watkins | MD | Catoctin | 2024 | RHP | 16.8 mph |
| 24 | Carson Eye | MD | Brunswick | 2025 | 1B | 16.7 mph |
MAX ROTATIONAL ACCELERATION
Measures how quickly your bat accelerates into the swing plane. Rotation is a good indicator of how you build bat speed by sequencing properly. The quicker your rotational acceleration, the more power you will have and the more time you have to adjust to pitch locations. For more info: Rotational Acceleration
MLB Avg: 16.8 g | College Avg: 12.9 g | HS Varsity Avg: 9.9 g
| Rank | Name | State | School | Class | Pos | Rot. Acc (max) |
| 1 | Mark Shelley | MD | Sparrows Point | 2022 | 1B | 25.9 g |
| 2 | Ryan Maxey | MD | Georgetown Prep | 2024 | SS | 22.6 g |
| 3 | Ryan Perry | MD | Calvert Hall | 2023 | SS | 21.7 g |
| 4 | Gavin Hughes | MD | Walkersville | 2024 | C | 20.5 g |
| 5 | Evan Cawthorne | MD | Blake | 2022 | OF | 19.8 g |
| 6 | Nicolas Piermarini | VA | Gonzaga College | 2024 | OF | 19.6 g |
| 7 | Brennan Kwiatkowski | MD | Calvert Hall | 2024 | C | 19.1 g |
| 8 | Justin Laro | MD | Sparrows Point | 2024 | 1B | 18.2 g |
| 9 | Adam Hicks | MD | Gilman | 2023 | OF | 17.5 g |
| 10 | Dominic Moats | NC | Pro5 Academy | 2024 | OF | 17.3 g |
| 11 | Ryan Zickefoose | MD | Sparrows Point | 2024 | 1B | 15.0 g |
| 12 | Nick Bournousouzis | MD | Calvert Hall | 2024 | C | 14.7 g |
| 13 | Riley Smith | MD | Urbana | 2023 | OF | 14.6 g |
| 14 | Michael Hemelt | MD | Patterson Mill | 2024 | LHP | 14.5 g |
| 15 | Blake Paquette | MD | Gilman | 2023 | CF | 14.2 g |
| 16 | Cooper Sidell | MD | Gilman | 2023 | RHP | 13.7 g |
| 17 | Bryce Fox | MD | Glenelg Country | 2025 | CF | 13.2 g |
| 18 | Kameran Locklear | MD | Sparrows Point | 2022 | OF | 11.1 g |
| 19 | Carson Eye | MD | Brunswick | 2025 | 1B | 10.2 g |
| 20 | Liam Ziegenfuss | MD | Manchester Valley | 2025 | 2B | 9.9 g |
| 21 | Dylan Remphrey | MD | Linganore | 2024 | RHP | 9.8 g |
| 22 | Gavin Watkins | MD | Catoctin | 2024 | RHP | 9.6 g |
| 23 | Gavin Larson | MD | Gerstell Academy | 2025 | LHP | 7.7 g |
| 24 | Aiden Dubetsky | MD | Georgetown Prep | 2024 | SS | 6.2 g |
| 25 | Andrew Purcell | MD | Urbana | 2023 | C | 4.7 g |
AVERAGE ROTATIONAL ACCELERATION
MLB Avg: 16.8 g | College Avg: 12.9 g | HS Varsity Avg: 9.9 g
| Rank | Name | State | School | Class | Pos | Rot. Acc (avg) |
| 1 | Mark Shelley | MD | Sparrows Point | 2022 | 1B | 22.8 g |
| 2 | Ryan Maxey | MD | Georgetown Prep | 2024 | SS | 20.5 g |
| 3 | Evan Cawthorne | MD | Blake | 2022 | OF | 17.7 g |
| 4 | Brennan Kwiatkowski | MD | Calvert Hall | 2024 | C | 17.6 g |
| 5 | Gavin Hughes | MD | Walkersville | 2024 | C | 17.2 g |
| 6 | Dominic Moats | NC | Pro5 Academy | 2024 | OF | 14.8 g |
| 7 | Ryan Perry | MD | Calvert Hall | 2023 | SS | 14.0 g |
| 8 | Ryan Zickefoose | MD | Sparrows Point | 2024 | 1B | 13.6 g |
| 9 | Nicolas Piermarini | VA | Gonzaga College | 2024 | OF | 12.9 g |
| 10 | Justin Laro | MD | Sparrows Point | 2024 | 1B | 12.5 g |
| 11 | Michael Hemelt | MD | Patterson Mill | 2024 | LHP | 12.2 g |
| 12 | Nick Bournousouzis | MD | Calvert Hall | 2024 | C | 11.9 g |
| 13 | Riley Smith | MD | Urbana | 2023 | OF | 11.8 g |
| 14 | Cooper Sidell | MD | Gilman | 2023 | RHP | 11.8 g |
| 15 | Bryce Fox | MD | Glenelg Country | 2025 | CF | 10.6 g |
| 16 | Adam Hicks | MD | Gilman | 2023 | OF | 10.5 g |
| 17 | Kameran Locklear | MD | Sparrows Point | 2022 | OF | 9.4 g |
| 18 | Gavin Watkins | MD | Catoctin | 2024 | RHP | 8.0 g |
| 19 | Liam Ziegenfuss | MD | Manchester Valley | 2025 | 2B | 7.3 g |
| 20 | Carson Eye | MD | Brunswick | 2025 | 1B | 7.1 g |
| 21 | Dylan Remphrey | MD | Linganore | 2024 | RHP | 6.7 g |
| 22 | Blake Paquette | MD | Gilman | 2023 | CF | 5.8 g |
| 23 | Aiden Dubetsky | MD | Georgetown Prep | 2024 | SS | 5.8 g |
| 24 | Gavin Larson | MD | Gerstell Academy | 2025 | LHP | 5.5 g |
| 25 | Andrew Purcell | MD | Urbana | 2023 | C | 3.9 g |
AVERAGE ON-PLANE EFFICIENCY
Measures the percentage of your swing where the bat is on the swing plane. Your vertical bat angle at contact establishes the plane for that swing. Plane is a great indicator for making more consistent contact on the barrel of the bat. For more info: On-Plane Efficiency
Ideal Efficiency %: 70% or Higher | Range: 65%-85%
| Rank | Name | State | School | Class | Pos | On Plane Eff (avg) |
| 1 | Dylan Remphrey | MD | Linganore | 2024 | RHP | 84 % |
| 2 | Justin Laro | MD | Sparrows Point | 2024 | 1B | 82 % |
| ^ | Ryan Maxey | MD | Georgetown Prep | 2024 | SS | 82 % |
| 3 | Brennan Kwiatkowski | MD | Calvert Hall | 2024 | C | 78 % |
| 4 | Evan Cawthorne | MD | Blake | 2022 | OF | 74 % |
| 5 | Liam Ziegenfuss | MD | Manchester Valley | 2025 | 2B | 72 % |
| ^ | Dominic Moats | NC | Pro5 Academy | 2024 | OF | 72 % |
| 6 | Michael Hemelt | MD | Patterson Mill | 2024 | LHP | 70 % |
| 7 | Nicolas Piermarini | VA | Gonzaga College | 2024 | OF | 69 % |
| 8 | Mark Shelley | MD | Sparrows Point | 2022 | 1B | 69 % |
| 9 | Kameran Locklear | MD | Sparrows Point | 2022 | OF | 68 % |
| 10 | Ryan Perry | MD | Calvert Hall | 2023 | SS | 64 % |
| 11 | Cooper Sidell | MD | Gilman | 2023 | RHP | 60 % |
| 12 | Gavin Hughes | MD | Walkersville | 2024 | C | 59 % |
| 13 | Gavin Watkins | MD | Catoctin | 2024 | RHP | 57 % |
| 14 | Carson Eye | MD | Brunswick | 2025 | 1B | 54 % |
| ^ | Aiden Dubetsky | MD | Georgetown Prep | 2024 | SS | 54 % |
| ^ | Adam Hicks | MD | Gilman | 2023 | OF | 54 % |
| 15 | Riley Smith | MD | Urbana | 2023 | OF | 52 % |
| 16 | Nick Bournousouzis | MD | Calvert Hall | 2024 | C | 49 % |
| 17 | Bryce Fox | MD | Glenelg Country | 2025 | CF | 49 % |
| 18 | Gavin Larson | MD | Gerstell Academy | 2025 | LHP | 48 % |
| 19 | Ryan Zickefoose | MD | Sparrows Point | 2024 | 1B | 41 % |
| 20 | Blake Paquette | MD | Gilman | 2023 | CF | 40 % |
| 21 | Andrew Purcell | MD | Urbana | 2023 | C | 29 % |
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