Trosky Redbirds Scout Day: Blast Leaders
November 12, 2020
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SAN DIEGO, CALIF. - 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.
At the recent Trosky Redbirds Scout Day, players were set up with a Blast Motion sensor before each round of batting practice. With the Blast Motion sensor, we were able to collect data from each swing taken by each prospect at the event. The metrics collected include: Bat Speed, On Plane Efficiency, Peak Hand Speed, Power and Rotational Acceleration.
Each player has their Blast Motion metrics 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.
Many of the players in the upperclass event were uncommitted and many of them put up some very good numbers, below we illustrate the top 20 players in each category.
CATEGORY LEADERS
Max Bat Speed: '21 3B Sebastian Mejorado - El Camino HS - 76.4 mph
Peak Hand Speed: '22 OF McCabe Moyer - Cathedral Catholic HS - 25 mph
On-Plane Efficiency: '22 OF McCabe Moyer - Cathedral Catholic HS - 88%
Max Rotational Acceleration: '21 RHP/1B Gerrit Erickson - Westview HS - 30.20g
CATEGORICAL LEADERBOARDS
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 | MiLB: 63-75 mph | College: 66-75 mph
| Rank | Name | State | School | Class | Pos | Bat Speed (max) |
| 1 | Sebastian Mejorado | CA | El Camino | 2021 | 3B | 76.4 mph |
| 2 | Charlie Mirer | CA | Cathedral Catholic | 2022 | 1B | 75.8 mph |
| 3 | Mark Prince | CA | La Costa Canyon | 2021 | OF | 74.9 mph |
| 4 | Rocco Granucci | CA | Scripps Ranch | 2021 | OF | 73.7 mph |
| 5 | Grayson Bonanno | CA | Torrey Pines | 2023 | RHP | 73.4 mph |
| ^ | Gerrit Erickson | CA | Westview | 2021 | RHP | 73.4 mph |
| 6 | Randy Huang | CA | Torrey Pines | 2023 | RHP | 72.8 mph |
| 7 | Steven Lancia | CA | Scripps Ranch | 2021 | C | 72.2 mph |
| 8 | Patrick McLellan | CA | Westview | 2021 | OF | 72.1 mph |
| 9 | Tobey Brown | CA | Coronado | 2021 | 2B | 71.9 mph |
| 10 | Brandon Stevens | CA | Cathedral Catholic | 2021 | OF | 70.9 mph |
| 11 | McCabe Moyer | CA | Cathedral Catholic | 2022 | OF | 70.5 mph |
| 12 | Jason Wright | CA | Westview | 2022 | C | 70.4 mph |
| 13 | Cole Hilliard | CA | Poway | 2021 | SS | 69.7 mph |
| 14 | Noah Lazuka | CA | San Marcos | 2021 | SS | 69.5 mph |
| 15 | Luke Warrington | CA | Westview | 2021 | OF | 69.4 mph |
| 16 | Brady Bucky | CA | Santa Fe Christian | 2022 | C | 68.3 mph |
| 17 | Zadyn Dillon | CA | Poway | 2022 | OF | 68.0 mph |
| 18 | Jack Hostetler | CA | San Dieguito Academy | 2021 | RHP | 67.9 mph |
| ^ | Connor Saccullo | CA | Jserra Catholic | 2021 | 3B | 67.9 mph |
| 19 | Nolan Young | CA | Torrey Pines | 2024 | C | 67.2 mph |
| 20 | Jeremiah Vargas | CA | Eastlake | 2024 | SS | 67.0 mph |
Peak 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 | MiLB Avg: 22-28 mph | College Avg: 21-24 mph
| Rank | Name | State | School | Class | Pos | Hand Speed (max) |
| 1 | McCabe Moyer | CA | Cathedral Catholic | 2022 | OF | 25.0 mph |
| 2 | Rocco Granucci | CA | Scripps Ranch | 2021 | OF | 24.9 mph |
| 3 | Mark Prince | CA | La Costa Canyon | 2021 | OF | 24.7 mph |
| ^ | Gerrit Erickson | CA | Westview | 2021 | RHP | 24.7 mph |
| 4 | Luke Stevenson | CA | Torrey Pines | 2021 | C | 23.7 mph |
| 5 | Randy Huang | CA | Torrey Pines | 2023 | RHP | 23.5 mph |
| 6 | Charlie Mirer | CA | Cathedral Catholic | 2022 | 1B | 23.4 mph |
| 7 | Jack Hostetler | CA | San Dieguito Academy | 2021 | RHP | 23.3 mph |
| 8 | Jeremiah Vargas | CA | Eastlake | 2024 | SS | 23.2 mph |
| 9 | Luke Warrington | CA | Westview | 2021 | OF | 23.1 mph |
| 10 | Noah Lazuka | CA | San Marcos | 2021 | SS | 22.3 mph |
| 11 | Patrick McLellan | CA | Westview | 2021 | OF | 22.1 mph |
| 12 | Sebastian Mejorado | CA | El Camino | 2021 | 3B | 22.0 mph |
| 13 | Tobey Brown | CA | Coronado | 2021 | 2B | 21.9 mph |
| 14 | Brandon Stevens | CA | Cathedral Catholic | 2021 | OF | 21.8 mph |
| 15 | Zadyn Dillon | CA | Poway | 2022 | OF | 21.7 mph |
| 16 | Connor Saccullo | CA | Jserra Catholic | 2021 | 3B | 21.6 mph |
| 17 | Steven Lancia | CA | Scripps Ranch | 2021 | C | 21.5 mph |
| 18 | Cole Hilliard | CA | Poway | 2021 | SS | 21.3 mph |
| 19 | Gavin Strup | CA | Torrey Pines | 2023 | 3B | 21.1 mph |
| ^ | Parker Ellis | CA | Rancho Bernardo | 2022 | OF | 21.1 mph |
| ^ | Matthew Livolsi | CA | Torrey Pines | 2022 | OF | 21.1 mph |
| 20 | Jake Tracy | CA | Torrey Pines | 2023 | C | 20.8 mph |
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 | Brandon Stevens | CA | Cathedral Catholic | 2021 | OF | 89 % |
| 2 | McCabe Moyer | CA | Cathedral Catholic | 2022 | OF | 88 % |
| 3 | Randy Huang | CA | Torrey Pines | 2023 | RHP | 86 % |
| 4 | Parker Ellis | CA | Rancho Bernardo | 2022 | OF | 80 % |
| 5 | Jeremiah Vargas | CA | Eastlake | 2024 | SS | 80 % |
| 6 | Connor Saccullo | CA | Jserra Catholic | 2021 | 3B | 78 % |
| 7 | Jason Wright | CA | Westview | 2022 | C | 77 % |
| 8 | Trevor Gould | CA | Poway | 2021 | RHP | 75 % |
| 9 | AJ Guiliana | CA | Torrey Pines | 2023 | SS | 71 % |
| 10 | Rocco Granucci | CA | Scripps Ranch | 2021 | OF | 70 % |
| 11 | Luke Stevenson | CA | Torrey Pines | 2021 | C | 70 % |
| 12 | Steven Lancia | CA | Scripps Ranch | 2021 | C | 69 % |
| 13 | Tobey Brown | CA | Coronado | 2021 | 2B | 67 % |
| 14 | Jake Tracy | CA | Torrey Pines | 2023 | C | 67 % |
| 15 | Mark Prince | CA | La Costa Canyon | 2021 | OF | 66 % |
| 16 | Charlie Mirer | CA | Cathedral Catholic | 2022 | 1B | 66 % |
| 17 | Andrew Randall | CA | Santa Fe Christian | 2024 | OF | 65 % |
| 18 | Grayson Bonanno | CA | Torrey Pines | 2023 | RHP | 62 % |
| 19 | Luke Roshkow | CA | Laguna Beach | 2021 | 2B | 62 % |
| 20 | Gerrit Erickson | CA | Westview | 2021 | RHP | 60 % |
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 | MiLB Avg: 12.6 g | College Avg: 12.9 g
| Rank | Name | State | School | Class | Pos | Rot. Acc (max) |
| 1 | Gerrit Erickson | CA | Westview | 2021 | RHP | 30.2 g |
| 2 | Luke Warrington | CA | Westview | 2021 | OF | 26.7 g |
| 3 | Luke Stevenson | CA | Torrey Pines | 2021 | C | 24.5 g |
| 4 | Rocco Granucci | CA | Scripps Ranch | 2021 | OF | 22.8 g |
| 5 | Tobey Brown | CA | Coronado | 2021 | 2B | 22.5 g |
| 6 | Brandon Stevens | CA | Cathedral Catholic | 2021 | OF | 21.4 g |
| 7 | Connor Saccullo | CA | Jserra Catholic | 2021 | 3B | 20.9 g |
| 8 | McCabe Moyer | CA | Cathedral Catholic | 2022 | OF | 19.0 g |
| 9 | Patrick McLellan | CA | Westview | 2021 | OF | 18.7 g |
| 10 | Parker Ellis | CA | Rancho Bernardo | 2022 | OF | 18.4 g |
| ^ | Gavin Strup | CA | Torrey Pines | 2023 | 3B | 18.4 g |
| 11 | Jake Tracy | CA | Torrey Pines | 2023 | C | 17.0 g |
| 12 | Steven Lancia | CA | Scripps Ranch | 2021 | C | 14.7 g |
| 13 | AJ Guiliana | CA | Torrey Pines | 2023 | SS | 14.2 g |
| 14 | Sebastian Mejorado | CA | El Camino | 2021 | 3B | 14.0 g |
| ^ | Zadyn Dillon | CA | Poway | 2022 | OF | 14.0 g |
| 15 | Jason Wright | CA | Westview | 2022 | C | 13.7 g |
| ^ | Nolan Young | CA | Torrey Pines | 2024 | C | 13.7 g |
| 16 | Jeremiah Vargas | CA | Eastlake | 2024 | SS | 13.2 g |
| 17 | Trevor Gould | CA | Poway | 2021 | RHP | 12.5 g |
| 18 | Matthew Livolsi | CA | Torrey Pines | 2022 | OF | 11.8 g |
| 19 | Mark Prince | CA | La Costa Canyon | 2021 | OF | 11.7 g |
| ^ | Randy Huang | CA | Torrey Pines | 2023 | RHP | 11.7 g |
| 20 | Cole Hilliard | CA | Poway | 2021 | SS | 9.9 g |
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