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NorCal Rising Stars Showcase: Trackman Pitching Analysis


PBR CA Scouting Staff

New Episode LIVE now! At The Yard Podcast

LATHROP, CALIF. - This summer and fall, Prep Baseball Report events across the country have been powered by TrackMan’s industry-leading portable system to capture pinpoint accurate, actionable data from player performances. Prep Baseball Report and TrackMan are dedicated to recognizing talent and unleashing their potential.

At the even all pitchers had a chance to throw live while being monitored through our portable Trackman B1 unit. Each player threw their complete arsenal of pitches allowing us to collect metrics such as release velocity, spin rate, vertical & horizontal movement and much more.

This data goes directly into the player profiles allowing the PBR Staff, college coaches and professional scouts alike to evaluate and compare prospects on a national scale.

The event featured 2024/2025 players, with the TrackMan system recording each pitch thrown during their bullpen session and now, we dive into the advanced metrics gathered.

Spin Rate is defined as how fast the ball is spinning as it leaves the pitcher's hand, measured in "Revolutions per Minute or RPM"

Bauer Units = Spin Rate (RPM) / Velocity (MPH)

Driveline Baseball on Bauer Units: Bauer Units are intended to control for velocity when looking at spin rate. The equation was intended to be simple enough for coaches and players to use quickly in practice to compare pitchers to MLB average.

FASTBALL VELOCITY

NCAA Averages: Top 10% - 92.5 mph, Top 25% - 90.8 mph, Avg. 50% - 88.9 mph

Rank Name State School Class Pos Velocity (max)
1 Tatum Marsh CA Valley Christian 2024 OF 85.9 mph
2 Justin Iglesias CA Bishop O'Dowd 2024 1B 81.1 mph
3 Jacob Untalan CA Casa Grande 2024 SS 78.4 mph
4 Tommy Goodin IV CA Agoura 2024 1B 78.0 mph
5 Quinten Marsh CA Valley Christian 2025 OF 77.4 mph
6 Austin Steeves CA Casa Grande 2024 LHP 77.1 mph
7 Griffin Sutton CA Granada 2025 3B 75.2 mph
8 Ryan Jensen CA Clovis North 2024 OF 75.0 mph
9 Spencer Korzep CA Capistrano Valley 2025 LHP 74.9 mph
10 Brendan Moddelmog CA Dublin 2025 SS 74.8 mph

FASTBALL SPIN

NCAA Averages (RPM): Top 10% - 2372, Top 25% - 2266, Avg. 50% - 2148

Rank Name State School Class Pos Spin Rate (max)
1 Tommy Goodin IV CA Agoura 2024 1B 2287 rpm
2 Tatum Marsh CA Valley Christian 2024 OF 2239 rpm
3 Brendan Moddelmog CA Dublin 2025 SS 2216 rpm
4 Spencer Korzep CA Capistrano Valley 2025 LHP 2198 rpm
5 Tyler Kennedy CA Granada 2025 3B 2029 rpm
6 Jacob Untalan CA Casa Grande 2024 SS 2010 rpm
7 Quinten Marsh CA Valley Christian 2025 OF 2006 rpm
8 Henry Bei CA Menlo-Atherton 2023 OF 1973 rpm
9 Justin Sechler CA Serra 2024 3B 1931 rpm
10 Austin Steeves CA Casa Grande 2024 LHP 1882 rpm

SLIDER SPIN

NCAA Averages (RPM): Top 10% - 2973, Top 25% - 2490, Avg. 50% - 2304

Rank Name State School Class Pos Spin Rate (max)
1 Griffin Sutton CA Granada 2025 3B 1769 rpm
2 Justin Iglesias CA Bishop O'Dowd 2024 1B 1645 rpm
3 Tatum Marsh CA Valley Christian 2024 OF 1615 rpm
4 Quinten Marsh CA Valley Christian 2025 OF 1611 rpm

CURVEBALL SPIN

NCAA Averages (RPM): Top 10% - 2730, Top 25% - 2539, Avg. 50% - 2339

Rank Name State School Class Pos Spin Rate (max)
1 Brendan Moddelmog CA Dublin 2025 SS 2293 rpm
2 Spencer Korzep CA Capistrano Valley 2025 LHP 2291 rpm
3 Austin Steeves CA Casa Grande 2024 LHP 2197 rpm
4 Alexander Masci CA St. Francis 2023 3B 2164 rpm
5 Ryan Schnell CA Menlo 2024 RHP 2104 rpm
6 Henry Bei CA Menlo-Atherton 2023 OF 2041 rpm
7 Tommy Goodin IV CA Agoura 2024 1B 1982 rpm
8 Ryan Jensen CA Clovis North 2024 OF 1926 rpm
9 Dylan Babcock CA Woodside 2024 RHP 1883 rpm
10 Tyler Kennedy CA Granada 2025 3B 1869 rpm

CHANGEUP SPIN

NCAA Averages (RPM): Top 10% - 2024, Top 25% - 1867, Avg. 50% - 1688

Rank Name State School Class Pos Spin Rate (max)
1 Spencer Korzep CA Capistrano Valley 2025 LHP 1807 rpm
2 Tommy Goodin IV CA Agoura 2024 1B 1753 rpm
3 Tatum Marsh CA Valley Christian 2024 OF 1715 rpm
4 Lucca Sanguinetti CA Archbishop Mitty 2024 SS 1695 rpm
5 Quinten Marsh CA Valley Christian 2025 OF 1686 rpm
6 Ryan Jensen CA Clovis North 2024 OF 1648 rpm
7 Henry Bei CA Menlo-Atherton 2023 OF 1607 rpm
8 Justin Iglesias CA Bishop O'Dowd 2024 1B 1587 rpm
9 Alexander Masci CA St. Francis 2023 3B 1563 rpm
10 Dylan Babcock CA Woodside 2024 RHP 1487 rpm
11 Griffin Sutton CA Granada 2025 3B 1483 rpm
12 Tyler Kennedy CA Granada 2025 3B 1471 rpm
13 Austin Steeves CA Casa Grande 2024 LHP 1459 rpm
14 Ryan Schnell CA Menlo 2024 RHP 1313 rpm
15 Daniel Solis CA Santa Teresa 2025 RHP 1250 rpm

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