Norcal Underclass Games: Blast Motion Leaderboard
September 27, 2021
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ISLANDERS FIELD - LATHROP, CALIF. - A total of 39 position players, all uncommitted, came out for the morning showcase/testing session. The event was all 2024/2025 grads, with a number of players who will appear in future rankings in attendance.
In addition to the traditional showcase (60 yard run, BP round, defensive workouts), the pitchers competed in live game action where their data was gathered, and each position player had four at-bats during the game they played in. Today's post highlights the leaders in four Blast Motion categories.
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 each swing taken by each prospect at the event. The metrics collected include: Bat Speed, On Plane Efficiency, Peak Hand Speed, 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.
(Note: All showcase videos have been edited and added to the players' profiles)
CLICK HERE FOR SORTABLE PLAYER STATISTICS INCLUDING TRACKMAN AND BLAST MOTION DATA
BLAST LEADERS
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 | Ben Straw | CA | Granite Bay | 2024 | RHP | 77.2 mph |
2 | Brandon Kleyman | CA | DE LA SALLE HIGH SCHOOL | 2026 | RHP | 72.5 mph |
3 | Ian Fernandez | CA | Vintage | 2024 | C | 72.3 mph |
4 | JT Summers | CA | Casa Grande | 2024 | C | 70.9 mph |
5 | Kalen Clemmens | CA | Casa Grande | 2024 | OF | 70.7 mph |
^ | Ivver Vertulfo | CA | Berean Christian | 2024 | 3B | 70.7 mph |
6 | Sammy Rivas | CA | Serra | 2024 | SS | 70.1 mph |
7 | Mason Ferris | CA | Woodcreek | 2024 | OF | 69.7 mph |
8 | Austin Steeves | CA | Casa Grande | 2024 | LHP | 69.6 mph |
9 | Dario Freschi | CA | Vintage | 2025 | SS | 69.1 mph |
10 | Jake Downing | CA | Serra | 2024 | SS | 68.5 mph |
11 | Max Harrison | CA | Sonoma Valley | 2024 | OF | 68.4 mph |
12 | Harry Pelzman | CA | Woodside | 2024 | LHP | 68.2 mph |
13 | Angel Valdez | CA | Sierra | 2024 | SS | 67.7 mph |
14 | Kenny Winters | CA | Lincoln | 2024 | SS | 67.4 mph |
15 | Miles Tenscher | CA | Vintage | 2024 | RHP | 67.0 mph |
^ | Justin Sechler | CA | Serra | 2024 | 1B | 67.0 mph |
^ | Andre Medina | CA | Palma | 2024 | C | 67.0 mph |
^ | Kade Spomer | CA | Lincoln | 2024 | SS | 67.0 mph |
16 | Ben Kreizenbeck | CA | Granite Bay | 2025 | C | 66.8 mph |
17 | Edward Peters | CA | Aptos | 2024 | SS | 66.6 mph |
^ | Konnor Rodnick | CA | Cardinal Newman | 2024 | C | 66.6 mph |
18 | Bryson Kramer | CA | River City | 2024 | SS | 66.1 mph |
19 | Rashad Hayes | CA | Bishop O'Dowd | 2025 | SS | 66.0 mph |
20 | Kayden Shaw | CA | James Logan | 2024 | SS | 65.5 mph |
Average Bat Speed
Rank | Name | State | School | Class | Pos | Bat Speed (avg) |
1 | Ian Fernandez | CA | Vintage | 2024 | C | 69.6 mph |
2 | Ben Straw | CA | Granite Bay | 2024 | RHP | 69.1 mph |
3 | Ivver Vertulfo | CA | Berean Christian | 2024 | 3B | 68.6 mph |
4 | JT Summers | CA | Casa Grande | 2024 | C | 68.4 mph |
5 | Kalen Clemmens | CA | Casa Grande | 2024 | OF | 67.6 mph |
6 | Mason Ferris | CA | Woodcreek | 2024 | OF | 67.5 mph |
7 | Sammy Rivas | CA | Serra | 2024 | SS | 67.3 mph |
8 | Jake Downing | CA | Serra | 2024 | SS | 67.1 mph |
9 | Brandon Kleyman | CA | DE LA SALLE HIGH SCHOOL | 2026 | RHP | 65.9 mph |
10 | Austin Steeves | CA | Casa Grande | 2024 | LHP | 65.8 mph |
11 | Max Harrison | CA | Sonoma Valley | 2024 | OF | 65.2 mph |
12 | Andre Medina | CA | Palma | 2024 | C | 64.8 mph |
13 | Dario Freschi | CA | Vintage | 2025 | SS | 64.5 mph |
14 | Konnor Rodnick | CA | Cardinal Newman | 2024 | C | 64.4 mph |
15 | Kenny Winters | CA | Lincoln | 2024 | SS | 64.4 mph |
16 | Ben Kreizenbeck | CA | Granite Bay | 2025 | C | 64.3 mph |
17 | Justin Sechler | CA | Serra | 2024 | 1B | 64.0 mph |
18 | Nic Sebastiani | CA | Sonoma Valley | 2024 | OF | 63.6 mph |
19 | Angel Valdez | CA | Sierra | 2024 | SS | 63.5 mph |
20 | Rashad Hayes | CA | Bishop O'Dowd | 2025 | SS | 63.3 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 | Ben Straw | CA | Granite Bay | 2024 | RHP | 24.3 mph |
2 | Ian Fernandez | CA | Vintage | 2024 | C | 23.9 mph |
3 | Sammy Rivas | CA | Serra | 2024 | SS | 23.5 mph |
^ | Austin Steeves | CA | Casa Grande | 2024 | LHP | 23.5 mph |
4 | Jake Downing | CA | Serra | 2024 | SS | 22.8 mph |
5 | Kayden Shaw | CA | James Logan | 2024 | SS | 22.7 mph |
6 | JT Summers | CA | Casa Grande | 2024 | C | 22.6 mph |
^ | Miles Tenscher | CA | Vintage | 2024 | RHP | 22.6 mph |
7 | Brandon Kleyman | CA | DE LA SALLE HIGH SCHOOL | 2026 | RHP | 22.5 mph |
8 | Harry Pelzman | CA | Woodside | 2024 | LHP | 22.4 mph |
^ | Kalen Clemmens | CA | Casa Grande | 2024 | OF | 22.4 mph |
9 | Jacob Moreda | CA | Cardinal Newman | 2024 | RHP | 22.2 mph |
10 | Edward Peters | CA | Aptos | 2024 | SS | 22.1 mph |
11 | Brandon Low | CA | Laguna Creek | 2024 | 2B | 22.0 mph |
^ | Nic Sebastiani | CA | Sonoma Valley | 2024 | OF | 22.0 mph |
12 | Ivver Vertulfo | CA | Berean Christian | 2024 | 3B | 21.8 mph |
^ | Kenny Winters | CA | Lincoln | 2024 | SS | 21.8 mph |
13 | Max Harrison | CA | Sonoma Valley | 2024 | OF | 21.5 mph |
^ | Ricky Maya | CA | Christian Brothers | 2024 | C | 21.5 mph |
14 | Dario Freschi | CA | Vintage | 2025 | SS | 21.4 mph |
15 | Joe Donnelly | CA | Elk Grove | 2024 | C | 21.3 mph |
^ | Jonah Williamson | CA | Sheldon | 2024 | 3B | 21.3 mph |
16 | Angel Valdez | CA | Sierra | 2024 | SS | 21.1 mph |
17 | Mason Ferris | CA | Woodcreek | 2024 | OF | 20.8 mph |
18 | Andre Medina | CA | Palma | 2024 | C | 20.6 mph |
^ | Boston Costley | CA | Inderkum | 2025 | OF | 20.6 mph |
19 | Bryson Kramer | CA | River City | 2024 | SS | 20.5 mph |
20 | Rashad Hayes | CA | Bishop O'Dowd | 2025 | SS | 20.4 mph |
Average Peak Hand Speed
Rank | Name | State | School | Class | Pos | Hand Speed (avg) |
1 | Ian Fernandez | CA | Vintage | 2024 | C | 22.9 mph |
2 | Jake Downing | CA | Serra | 2024 | SS | 22.4 mph |
3 | Sammy Rivas | CA | Serra | 2024 | SS | 22.2 mph |
4 | JT Summers | CA | Casa Grande | 2024 | C | 22.0 mph |
5 | Ben Straw | CA | Granite Bay | 2024 | RHP | 21.9 mph |
6 | Nic Sebastiani | CA | Sonoma Valley | 2024 | OF | 21.6 mph |
7 | Jacob Moreda | CA | Cardinal Newman | 2024 | RHP | 21.1 mph |
8 | Austin Steeves | CA | Casa Grande | 2024 | LHP | 21.1 mph |
9 | Brandon Kleyman | CA | DE LA SALLE HIGH SCHOOL | 2026 | RHP | 20.9 mph |
10 | Kalen Clemmens | CA | Casa Grande | 2024 | OF | 20.8 mph |
11 | Harry Pelzman | CA | Woodside | 2024 | LHP | 20.7 mph |
12 | Dario Freschi | CA | Vintage | 2025 | SS | 20.5 mph |
13 | Kayden Shaw | CA | James Logan | 2024 | SS | 20.4 mph |
14 | Brandon Low | CA | Laguna Creek | 2024 | 2B | 20.4 mph |
15 | Edward Peters | CA | Aptos | 2024 | SS | 20.3 mph |
16 | Max Harrison | CA | Sonoma Valley | 2024 | OF | 20.3 mph |
17 | Kenny Winters | CA | Lincoln | 2024 | SS | 20.3 mph |
18 | Ivver Vertulfo | CA | Berean Christian | 2024 | 3B | 20.2 mph |
19 | Joe Donnelly | CA | Elk Grove | 2024 | C | 19.9 mph |
20 | Andre Medina | CA | Palma | 2024 | C | 19.9 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 | Konnor Rodnick | CA | Cardinal Newman | 2024 | C | 78 % |
2 | Bryson Kramer | CA | River City | 2024 | SS | 78 % |
3 | Rashad Hayes | CA | Bishop O'Dowd | 2025 | SS | 74 % |
4 | Sammy Rivas | CA | Serra | 2024 | SS | 73 % |
5 | Miles Tenscher | CA | Vintage | 2024 | RHP | 73 % |
6 | Ben Straw | CA | Granite Bay | 2024 | RHP | 73 % |
7 | Dominic Alvarado | CA | Central Valley Christian | 2024 | 3B | 71 % |
8 | Luke Giusto | CA | Justin-Siena | 2024 | 3B | 71 % |
9 | Ian Fernandez | CA | Vintage | 2024 | C | 70 % |
10 | Carson Davis | CA | Marin Catholic | 2025 | SS | 69 % |
11 | Mason Ferris | CA | Woodcreek | 2024 | OF | 68 % |
12 | Gabriel Munoz | CA | Clovis North | 2025 | 2B | 66 % |
13 | Ricky Maya | CA | Christian Brothers | 2024 | C | 66 % |
14 | Dario Freschi | CA | Vintage | 2025 | SS | 65 % |
15 | Kenny Winters | CA | Lincoln | 2024 | SS | 65 % |
16 | Jonah Williamson | CA | Sheldon | 2024 | 3B | 65 % |
17 | Ivver Vertulfo | CA | Berean Christian | 2024 | 3B | 65 % |
18 | Ben Kreizenbeck | CA | Granite Bay | 2025 | C | 64 % |
19 | Harry Pelzman | CA | Woodside | 2024 | LHP | 64 % |
20 | Max Harrison | CA | Sonoma Valley | 2024 | OF | 63 % |
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 | Sammy Rivas | CA | Serra | 2024 | SS | 24.7 g |
2 | Mason Ferris | CA | Woodcreek | 2024 | OF | 18.8 g |
3 | Jacob Moreda | CA | Cardinal Newman | 2024 | RHP | 17.6 g |
4 | Boston Costley | CA | Inderkum | 2025 | OF | 16.7 g |
5 | Jake Downing | CA | Serra | 2024 | SS | 16.3 g |
6 | Miles Tenscher | CA | Vintage | 2024 | RHP | 15.7 g |
7 | Brandon Kleyman | CA | DE LA SALLE HIGH SCHOOL | 2026 | RHP | 15.6 g |
8 | Carson Davis | CA | Marin Catholic | 2025 | SS | 15.2 g |
9 | Ian Fernandez | CA | Vintage | 2024 | C | 14.4 g |
10 | Kayden Shaw | CA | James Logan | 2024 | SS | 14.3 g |
11 | Dominic Alvarado | CA | Central Valley Christian | 2024 | 3B | 13.7 g |
12 | Dario Freschi | CA | Vintage | 2025 | SS | 13.6 g |
13 | Brandon Low | CA | Laguna Creek | 2024 | 2B | 13.6 g |
14 | Angel Valdez | CA | Sierra | 2024 | SS | 13.4 g |
15 | Austin Steeves | CA | Casa Grande | 2024 | LHP | 12.6 g |
16 | Kenny Winters | CA | Lincoln | 2024 | SS | 12.6 g |
17 | Gavin Huffmaster | CA | Dougherty Valley | 2025 | OF | 12.4 g |
18 | Nic Sebastiani | CA | Sonoma Valley | 2024 | OF | 12.0 g |
19 | Jonah Williamson | CA | Sheldon | 2024 | 3B | 11.7 g |
20 | Max Harrison | CA | Sonoma Valley | 2024 | OF | 11.5 g |
UPCOMING EVENTS
SHOWCASE | STATE | DATE | LOCATION |
SoCal Underclass Games (Invite Only) | CA | 09/25 | U of San Diego |
Northern California Academic Games | CA | 10/16 | Menlo College |
Unsigned Senior Games | CA | 10/17 | Hart Park |
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