Prep Baseball Report

Top Prospect Games: Underclass Pitching Leaderboard


By: Diego Solares
Area Scout, Illinois & Missouri

On Tuesday, June 6th, the PBR Missouri staff traveled to Atkins Field in Columbia, MO, to host the annual Top Prospect Games: Underclass event. This invite-only event featured some of the state’s top 2025, 2026, and 2027 graduates, and those in attendance participated in a pro-style workout, followed by a simulated game. 

Over the years, this event has provided our staff with an up-close look at some of the state’s premier underclass talent. These ‘Top Prospect’ events, like all of our PBR showcases, serve as identifiers for future invite-only events, like the PBR Future Games.

To see a full list of the players that attended this event, click HERE.

Shortly after the event’s conclusion, our staff published the day’s stat leaders, highlighting a handful of names who put up numbers across the board. You can find that by clicking HERE.

Then, with the help of our tech partners, we compiled a hitting leaderboard, shining some light on multiple top offensive performers through an analytical lens. Those names can be found HERE.

We’ll turn our attention to the mound today, zooming in on a few names that’s data intrigued on the hill, which you can find below.

MAX FASTBALL VELOCITY

Rank Name State School Class Pos Velocity (max)
1 Tanner Graham MO Columbia Hickman 2025 RHP 87.4 mph
2 Tyler Putnam MO Battle 2026 RHP 87.1 mph
3 Calen Jones MO Helias Catholic 2025 RHP 85.1 mph
4 CJ Lake MO Oakville 2026 3B 84.9 mph
5 Kyle Haynes MO Hickman 2025 RHP 84.0 mph
6 Henry Vedder MO Washington High School 2026 RHP 83.8 mph
7 Landon Matthews MO Lafayette 2026 RHP 83.6 mph
8 Brandon Ott MO DeSmet Jesuit 2027 RHP 82.5 mph
9 Chase Stieferman MO Capital City 2027 LHP 82.2 mph
10 Eli Kemna MO St Elizabeth R-IV 2026 RHP 82.2 mph

PEAK CURVEBALL SPIN RATE 

Rank Name State School Class Pos Spin Rate (max)
1 Eli Kemna MO St Elizabeth R-IV 2026 RHP 2530 rpm
2 Justin Seaver MO RUSSELLVILLE HIGH 2026 OF 2497 rpm
3 Tanner Graham MO Columbia Hickman 2025 RHP 2488 rpm
4 Colin Donaldson MO St. Dominic 2027 C 2429 rpm
5 Grant Blair MO Lutheran South 2025 2392 rpm

AVERAGE CURVEBALL SPIN RATE 

Rank Name State School Class Pos Spin Rate (avg)
1 Eli Kemna MO St Elizabeth R-IV 2026 RHP 2470 rpm
2 Tanner Graham MO Columbia Hickman 2025 RHP 2451 rpm
3 Justin Seaver MO RUSSELLVILLE HIGH 2026 OF 2406 rpm
4 Colin Donaldson MO St. Dominic 2027 C 2386 rpm
5 Grant Blair MO Lutheran South 2025 2275 rpm

PEAK SLIDER SPIN RATE 

Rank Name State School Class Pos Spin Rate (max)
1 Colin Donaldson MO St. Dominic 2027 C 2503 rpm
2 Tanner Graham MO Columbia Hickman 2025 RHP 2433 rpm
3 Brandon Ott MO DeSmet Jesuit 2027 RHP 2166 rpm

AVERAGE SLIDER SPIN RATE

Rank Name State School Class Pos Spin Rate (avg)
1 Colin Donaldson MO St. Dominic 2027 C 2419
2 Tanner Graham MO Columbia Hickman 2025 RHP 2374
3 Brandon Ott MO DeSmet Jesuit 2027 RHP 2163

PEAK CHANGEUP HORIZONTAL 

Rank Name State School Class Pos HM (max)
1 Eli Kemna MO St Elizabeth R-IV 2026 RHP -18.7 in
2 Max Partney MO Hillsboro 2027 3B 17.5 in
3 Garretson Cook MO Bolivar 2025 1B -14.9 in
4 Tyler Putnam MO Battle 2026 RHP 14.7 in
5 Brandon Ott MO DeSmet Jesuit 2027 RHP 12.6 in

AVERAGE CHANGEUP HORIZONTAL 

Rank Name State School Class Pos HM (avg)
1 Eli Kemna MO St Elizabeth R-IV 2026 RHP -18.7
2 Max Partney MO Hillsboro 2027 3B 17.5
3 Tyler Putnam MO Battle 2026 RHP 14.7
4 Garretson Cook MO Bolivar 2025 1B -13.2
5 Brandon Ott MO DeSmet Jesuit 2027 RHP 12.6

For a look at all of the statistics collected from this event, click HERE.

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