NorCal Underclass Game: Blast Motion Leaderboard


PBR California Staff

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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 King's Academy 2025 C 74.1 mph
2 Dario Freschi CA Vintage 2025 SS 70.5 mph
3 Dylan Christian CA Leigh 2025 SS 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 2026 C 66.6 mph
9 Lance Takamura CA Leigh 2025 2B 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 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 2026 C 63.0 mph
9 Dylan Christian CA Leigh 2025 SS 62.6 mph
10 Lance Takamura CA Leigh 2025 2B 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 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 2B 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 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 2026 C 18.5 mph
10 Lance Takamura CA Leigh 2025 2B 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 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 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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