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Thu June 8, 2023
The West FL IDs took place Tuesday, June 6th at Jack Russell Stadium in Clearwater, FL. The West FL IDs consisted of Future Games Tryouts, All-American IDs, and Uncommitted '24 IDs. The event featured players from the 2024-2028 classes participating in a pro-style workout and bullpens in front of the PBR Florida Scouting Staff.
Inside today’s Pitching Data Dive we will highlight the players with top metrics per Trackman.
Yesterday, we broke down the stat leaders from the more traditional categories in our statistical analysis. Today, we will take an even closer look at the pitchers in attendance with the help of our tech partners, broken down by the categories and leaderboards below.
Rank | Name | State | School | Class | Pos | Velocity (max) |
1 | Reed Biemiller | FL | Jesuit | 2025 | RHP | 88.8 mph |
2 | Brock Golden | FL | Osceola Fundamental | 2025 | RHP | 83.7 mph |
3 | Jackson Krukonis | FL | East Lake | 2024 | RHP | 83.0 mph |
4 | Eli Millian | FL | East Lake | 2026 | RHP | 82.5 mph |
5 | Hector Rivera | FL | Jesuit | 2026 | 3B | 82.4 mph |
Rank | Name | State | School | Class | Pos | Spin Rate (avg) |
1 | Brayden Spink | FL | East Lake | 2026 | OF | 2225 rpm |
2 | Cooper Antalek | FL | Academy at the Lakes | 2026 | SS | 2199 rpm |
3 | Jonathan Marzullo | FL | IMG Academy | 2028 | C | 2094 rpm |
4 | Andrew Thalleen | FL | Academy at the Lakes | 2026 | RHP | 2084 rpm |
5 | Jack Johnson | FL | Dunedin | 2024 | RHP | 2064 rpm |
Spin Rate: This metric calculates the rate of spin on the baseball as it leaves the pitcher’s hand, measured in revolutions per minute (rpm). Historical data shows that high-spin fastballs lessen the impact of gravity, allowing for more ‘rise’ (or less fall, in other words) as it carries through the zone. Low-spin fastballs typically indicate the pitch has greater horizontal action, often making it tougher to square up, but generally easier to make contact with, leading to more ground balls, while high-spin fastballs show a correlation with swings and misses.
Rank | Name | State | School | Class | Pos | Spin Efficiency % (avg) |
1 | Brock Golden | FL | Osceola Fundamental | 2025 | RHP | 98 % |
2 | Eli Millian | FL | East Lake | 2026 | RHP | 97 % |
3 | Chase Andress | FL | Wharton | 2026 | OF | 96 % |
4 | Jake Hartter | FL | Venice | 2026 | SS | 94 % |
5 | Jackson Krukonis | FL | East Lake | 2024 | RHP | 92 % |
Spin Efficiency: This metric is the percentage of the raw spin rate that directly impacts pitch movement; so while raw spin is measured by revolutions per minute (rpm), spin efficiency is the ratio of true spin divided by raw spin. It’s important to understand that more is not always better when it comes to spin efficiency. The optimal spin efficiency on a pitch depends on the pitch type and should be understood in the context of a pitcher’s entire arsenal. Regarding the true four-seam fastball, a spin efficiency close to 100 percent is preferable, indicating that nearly all the backspin generated on the ball as it leaves the pitcher’s hand is contributing to the “riding” action the pitch has as it enters and exits the strike zone, making it especially effective in the upper third of the strike zone.
Rank | Name | State | School | Class | Pos | IVB (avg) |
1 | Sebastian Prieto | FL | Jesuit | 2026 | 1B | 21.5 in |
2 | Chase Andress | FL | Wharton | 2026 | OF | 20.3 in |
3 | Eli Millian | FL | East Lake | 2026 | RHP | 17.4 in |
4 | Jonathan Marzullo | FL | IMG Academy | 2028 | C | 17.4 in |
5 | Jake Hartter | FL | Venice | 2026 | SS | 17.0 in |
Induced Vertical Break: Used in short form as "IVB," this metric is most important on fastballs for creating rise and on curveballs for creating depth – it can also have some use when measuring sliders and cutters as well. Sliders tend to be closer to zero inches while cutters are generally between 5 and 15 inches. Usually fastballs and curveballs with large IVB have higher spin efficiencies as well. Sliders generally have very little (closer to zero) IVB and very low spin efficiency. You could also categorize IVB into spin rate as this is part of the “useful movement” you’re looking for. IVB is also a huge part of the vertical approach angle.
Rank | Name | State | School | Class | Pos | HM (avg) |
1 | Brock Golden | FL | Osceola Fundamental | 2025 | RHP | 18.6 |
2 | Hector Rivera | FL | Jesuit | 2026 | 3B | 17.0 |
3 | Andrew Thalleen | FL | Academy at the Lakes | 2026 | RHP | 16.5 |
4 | Cooper Antalek | FL | Academy at the Lakes | 2026 | SS | 16.4 |
5 | Eli Millian | FL | East Lake | 2026 | RHP | 16.4 |
Horizontal Break: Outlined on TrackMan’s own website: “... horizontal movement is measured in inches between where the pitch actually crosses the front of home plate side-wise, and where it would have crossed home plate side-wise if had it traveled in a perfectly straight line from release. A positive number means the break was to the right from the pitcher’s perspective, while a negative number means the break was to the left from the pitcher’s perspective.”
Rank | Name | State | School | Class | Pos | Spin Rate (avg) |
1 | Eli Millian | FL | East Lake | 2026 | RHP | 2386 rpm |
2 | Cooper Antalek | FL | Academy at the Lakes | 2026 | SS | 2291 rpm |
3 | Jackson Krukonis | FL | East Lake | 2024 | RHP | 2265 rpm |
4 | Carson VanSweden | FL | Northside Christan | 2024 | LHP | 2219 rpm |
5 | Jake Hartter | FL | Venice | 2026 | SS | 2193 rpm |
Rank | Name | State | School | Class | Pos | IVB (avg) |
1 | Carson VanSweden | FL | Northside Christan | 2024 | LHP | -8.2 in |
2 | Jake Hartter | FL | Venice | 2026 | SS | 3.5 in |
3 | Cooper Antalek | FL | Academy at the Lakes | 2026 | SS | 3.4 in |
4 | Jackson Krukonis | FL | East Lake | 2024 | RHP | -2.3 in |
5 | Bryce Besece | FL | Jesuit | 2027 | C | -2.3 in |
Rank | Name | State | School | Class | Pos | HM (avg) |
1 | Carson VanSweden | FL | Northside Christan | 2024 | LHP | 8.6 |
2 | Eli Millian | FL | East Lake | 2026 | RHP | -8.3 |
3 | Chase Andress | FL | Wharton | 2026 | OF | 7.2 |
Rank | Name | State | School | Class | Pos | Spin Rate (avg) |
1 | Jack Johnson | FL | Dunedin | 2024 | RHP | 2490 |
2 | Andrew Thalleen | FL | Academy at the Lakes | 2026 | RHP | 2435 |
3 | Reed Biemiller | FL | Jesuit | 2025 | RHP | 2320 |
4 | Hector Rivera | FL | Jesuit | 2026 | 3B | 2215 |
5 | Jackson Krukonis | FL | East Lake | 2024 | RHP | 2082 |
Rank | Name | State | School | Class | Pos | IVB (avg) |
1 | Jonathan Marzullo | FL | IMG Academy | 2028 | C | 11.4 in |
2 | Jackson Krukonis | FL | East Lake | 2024 | RHP | 7.8 in |
3 | Jett Walters | FL | Berkeley Prep | 2027 | OF | 6.4 in |
4 | Hector Rivera | FL | Jesuit | 2026 | 3B | 5.5 in |
5 | Reed Biemiller | FL | Jesuit | 2025 | RHP | -4.1 in |
Rank | Name | State | School | Class | Pos | HM (avg) |
1 | Carson VanSweden | FL | Northside Christan | 2024 | LHP | 11.8 |
2 | Reed Biemiller | FL | Jesuit | 2025 | RHP | -11.0 |
3 | Jack Johnson | FL | Dunedin | 2024 | RHP | -8.7 |
4 | Jonathan Marzullo | FL | IMG Academy | 2028 | C | 5.3 |
5 | Bryce Besece | FL | Jesuit | 2027 | C | -5.0 |
Rank | Name | State | School | Class | Pos | Spin Rate (avg) |
1 | Brayden Spink | FL | East Lake | 2026 | OF | 1868 rpm |
2 | Hector Rivera | FL | Jesuit | 2026 | 3B | 1731 rpm |
3 | Bryce Besece | FL | Jesuit | 2027 | C | 1725 rpm |
4 | Reed Biemiller | FL | Jesuit | 2025 | RHP | 1614 rpm |
5 | Jett Walters | FL | Berkeley Prep | 2027 | OF | 1520 rpm |
Rank | Name | State | School | Class | Pos | HM (avg) |
1 | Reed Biemiller | FL | Jesuit | 2025 | RHP | 18.2 |
2 | Hector Rivera | FL | Jesuit | 2026 | 3B | 17.6 |
3 | Brock Golden | FL | Osceola Fundamental | 2025 | RHP | 17.1 |