NorCal Underclass Game: Blast Motion Leaderboard
October 5, 2022
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LATHROP, CALIF. - One of the important tools Prep Baseball Report implements at our 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 collect data from each swing taken by each player at the event. The metrics collected/published 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 more full picture of the player to the college and professional scouts doing their research on prospects they may be interested in.
NorCal Underclass Game Full List of Stats/Data/Metrics
BLAST MOTION LEADERS
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 | Ethan Johnson | CA | The King's Academy | 2025 | C | 74.1 mph |
2 | Dario Freschi | CA | Vintage | 2025 | SS | 70.5 mph |
3 | Dylan Christian | CA | Leigh | 2025 | 2B | 69.4 mph |
4 | JJ Robinson | CA | Clayton Valley Charter | 2026 | OF | 68.8 mph |
5 | Matteo Martinez | CA | Clovis West | 2025 | SS | 67.6 mph |
6 | Chase Nadeau | CA | Granada | 2025 | C | 66.8 mph |
^ | Mason Ravera | CA | Granada | 2025 | SS | 66.8 mph |
7 | Kai Chang | CA | Arlington | 2025 | C | 66.7 mph |
8 | Cody Phillips | CA | Granada High | 2026 | C | 66.6 mph |
9 | Lance Takamura | CA | Leigh | 2025 | C | 64.1 mph |
10 | Zeke Porter | CA | Washington | 2025 | SS | 60.5 mph |
AVERAGE BAT SPEED
Rank | Name | State | School | Class | Pos | Bat Speed (avg) |
1 | Ethan Johnson | CA | The King's Academy | 2025 | C | 68.0 mph |
2 | Dario Freschi | CA | Vintage | 2025 | SS | 65.8 mph |
3 | Matteo Martinez | CA | Clovis West | 2025 | SS | 65.5 mph |
4 | Kai Chang | CA | Arlington | 2025 | C | 65.0 mph |
5 | JJ Robinson | CA | Clayton Valley Charter | 2026 | OF | 63.9 mph |
6 | Mason Ravera | CA | Granada | 2025 | SS | 63.8 mph |
7 | Chase Nadeau | CA | Granada | 2025 | C | 63.7 mph |
8 | Cody Phillips | CA | Granada High | 2026 | C | 63.0 mph |
9 | Dylan Christian | CA | Leigh | 2025 | 2B | 62.6 mph |
10 | Lance Takamura | CA | Leigh | 2025 | C | 61.5 mph |
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 | Cody Phillips | CA | Granada High | 2026 | C | 80 % |
2 | Micah Delarosby | CA | Vacaville | 2026 | SS | 79 % |
3 | Tyler Stevens | CA | Washington | 2026 | SS | 71 % |
4 | Andrew Munoz | CA | San Leandro | 2026 | 3B | 70 % |
5 | Dario Freschi | CA | Vintage | 2025 | SS | 68 % |
6 | Kai Chang | CA | Arlington | 2025 | C | 65 % |
7 | Mason Ravera | CA | Granada | 2025 | SS | 61 % |
8 | Zeke Porter | CA | Washington | 2025 | SS | 61 % |
9 | Lance Takamura | CA | Leigh | 2025 | C | 60 % |
10 | JJ Robinson | CA | Clayton Valley Charter | 2026 | OF | 60 % |
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 | Andrew Munoz | CA | San Leandro | 2026 | 3B | 21.9 mph |
2 | Matteo Martinez | CA | Clovis West | 2025 | SS | 21.6 mph |
3 | Zeke Porter | CA | Washington | 2025 | SS | 21.4 mph |
4 | Mason Ravera | CA | Granada | 2025 | SS | 21.2 mph |
5 | JJ Robinson | CA | Clayton Valley Charter | 2026 | OF | 20.8 mph |
6 | Kai Chang | CA | Arlington | 2025 | C | 20.7 mph |
7 | Dario Freschi | CA | Vintage | 2025 | SS | 20.1 mph |
8 | Chase Nadeau | CA | Granada | 2025 | C | 20.0 mph |
9 | Ethan Johnson | CA | The King's Academy | 2025 | C | 19.9 mph |
10 | Tyler Stevens | CA | Washington | 2026 | SS | 19.3 mph |
AVERAGE HAND SPEED
Rank | Name | State | School | Class | Pos | Hand Speed (avg) |
1 | Matteo Martinez | CA | Clovis West | 2025 | SS | 20.8 mph |
2 | Mason Ravera | CA | Granada | 2025 | SS | 20.5 mph |
3 | Zeke Porter | CA | Washington | 2025 | SS | 20.3 mph |
4 | Andrew Munoz | CA | San Leandro | 2026 | 3B | 20.2 mph |
5 | JJ Robinson | CA | Clayton Valley Charter | 2026 | OF | 19.8 mph |
6 | Kai Chang | CA | Arlington | 2025 | C | 19.4 mph |
7 | Dario Freschi | CA | Vintage | 2025 | SS | 19.4 mph |
8 | Chase Nadeau | CA | Granada | 2025 | C | 19.3 mph |
9 | Cody Phillips | CA | Granada High | 2026 | C | 18.5 mph |
10 | Lance Takamura | CA | Leigh | 2025 | C | 18.0 mph |
AVERAGE 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 (avg) |
1 | Andrew Munoz | CA | San Leandro | 2026 | 3B | 19.5 g |
2 | Dario Freschi | CA | Vintage | 2025 | SS | 18.5 g |
3 | Cody Phillips | CA | Granada High | 2026 | C | 18.2 g |
4 | JJ Robinson | CA | Clayton Valley Charter | 2026 | OF | 16.7 g |
5 | Mason Ravera | CA | Granada | 2025 | SS | 16.4 g |
6 | Tyler Stevens | CA | Washington | 2026 | SS | 16.4 g |
7 | Matteo Martinez | CA | Clovis West | 2025 | SS | 15.2 g |
8 | Zeke Porter | CA | Washington | 2025 | SS | 14.8 g |
9 | Ethan Johnson | CA | The King's Academy | 2025 | C | 10.3 g |
10 | Micah Delarosby | CA | Vacaville | 2026 | SS | 9.5 g |
UPCOMING EVENTS
SHOWCASE | STATE | DATE | LOCATION |
NorCal Uncommitted Games | CA | 10/09 | McBean Stadium |
SoCal Top Prospects Games (Invite-Only) | CA | 10/09 | Great Park Stadium |
SoCal Uncommitted Games | CA | 10/15 | Fullerton College |
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