Unsigned Upperclass Spotlight: Koa Marzo
May 8, 2025
The high school season is coming to a close as players now shift their focus to the summer circuit. The 2025 preseason showcase schedule featured the first-ever Hawaii Preseason Invitational—an eight-team tournament to kick off the year that saw all positional players run through a pro-style workout alongside our tech partners, while we also collected updated TrackMan pitching data on all arms during gameplay.
Our staff had eyes on over 100 players, and with the summer just around the corner, there is still a ton of quality uncommitted talent available in Hawaii’s upperclassman group. Over the next couple of weeks, our staff will begin highlighting some of these names who need to be on the radar of college coaches as the summer gets underway.
We continue our Top Uncommitted Upperclass Spotlight Series with '26 OF/SS Koa Marzo of the Hilo High School program. Marzo is a versatile athlete with clean actions at multiple positions. The junior will be a player to keep an eye on as the summer season gets underway.
To register for the Hawaii State Games (June 7/8), click here.
To view Hawaii's Class of 2025 Commitment Board, click here.
Scouting Report
Koa Marzo, Hilo, 2026
Positional Profile: SS/OF Athletic 2026 RHH OF/SS with tools and plus upside just scratching surface
Body: 5-10, 139-pounds.
Hit: RHH. doesn't get cheated, takes a rip, got some bat speed and big pop for 140 lbs, bat is far from polished but has the ingredients to hit
Power: 91 max exit velocity, averaged 91.0 mph. 353' max distance. crushed one deep to LF when everything lined up in load, getting foot down and bat head out, 140 lbs and showing impressive power now
Arm: RH. OF-91 mph. very good arm action, fast arm and likes to show it off, 91 from OF with arrow going up, easily ends up with enough arm for RF
Defense: speed for CF, arm for RF, would not bet against his athelticism he can play on the dirt as well
ATH: 7.08 runner in the 60. good stride, run could improved with strength gains