Top Prospect Games: Underclass Pitching Leaderboard
June 8, 2023
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 | RHP | 84.9 mph |
5 | Kyle Haynes | MO | David H. Hickman | 2025 | RHP | 84.0 mph |
6 | Henry Vedder | MO | Washington | 2026 | RHP | 83.8 mph |
7 | Landon Matthews | MO | LAFAYETTE SR. HIGH | 2026 | RHP | 83.6 mph |
8 | Brandon Ott | MO | DeSmet | 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 HIGH SCHOOL | 2027 | C | 2429 rpm |
5 | Grant Blair | MO | Lutheran South | 2025 | RHP | 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 HIGH SCHOOL | 2027 | C | 2386 rpm |
5 | Grant Blair | MO | Lutheran South | 2025 | RHP | 2275 rpm |
PEAK SLIDER SPIN RATE
Rank | Name | State | School | Class | Pos | Spin Rate (max) |
1 | Colin Donaldson | MO | ST DOMINIC HIGH SCHOOL | 2027 | C | 2503 rpm |
2 | Tanner Graham | MO | Columbia Hickman | 2025 | RHP | 2433 rpm |
3 | Brandon Ott | MO | DeSmet | 2027 | RHP | 2166 rpm |
AVERAGE SLIDER SPIN RATE
Rank | Name | State | School | Class | Pos | Spin Rate (avg) |
1 | Colin Donaldson | MO | ST DOMINIC HIGH SCHOOL | 2027 | C | 2419 |
2 | Tanner Graham | MO | Columbia Hickman | 2025 | RHP | 2374 |
3 | Brandon Ott | MO | DeSmet | 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 HIGH | 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 | 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 HIGH | 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 | 2027 | RHP | 12.6 |
For a look at all of the statistics collected from this event, click HERE.
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