 |  | 12/16/2026 |  | | | | | | | | | | |  | P Ken'ichi Matsuura #34 | | | | | Age: 24 | Bats: L | Throws: R | Morale: Normal | |
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| G | GS | Rec | SV | ERA | IP | HA | HR | BB | K | WHIP | | | | | 0 | 0 | 0-0 | 0 | 0.00 | 0.0 | 0 | 0 | 0 | 0 | 0.00 | | | |
| | | Potential | | Stuff | |  | | Movement | |  | | Control | |  |
| | Pitching Ratings (OSA) | | | Overall | Vs Left | Vs Right | Potential | | Stuff | | | | 5 | | Movement | | | | 7 | | Control | | | | 6 |
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| | Pitch Ratings | | Pitch | Current | Potential | | Fastball | - | 5 | | Slider | - | 5 | | Changeup | - | 2 | | Splitter | - | 5 | | | | |
| | Other Pitching Ratings | | Velocity | 89-90 Mph | | Stamina | 5 | | Suggested Role | Starter | | Groundball Percentage | 58 % | | Hold Runners | 6 | | Defense | 5 |
| | Run/Bunt Ratings | | Running Speed: | 3 | | Stealing Ability: | 3 | | Baserunning Inst.: | 1 | | Sacrifice Bunt: | 9 | | Bunt for Hit: | 1 | | | |
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| | Game Log, Last 10 Games | | Date | Vs. | Result | Start | IP | H | R | ER | BB | K | Dec |
| | Personality Ratings | | Leader Ability: | Very Low | | Loyalty: | Normal | | Desire f. Win: | Low | | Greed: | High | | Intelligence: | Very High | | Work Ethic: | Very Low |
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| | Ken'ichi Matsuura | | Birthday: | 03/06/2002 | | Born in: | Tokorozawa (Saitama) | | Nationality: | Japanese | | Height: | 6' 4" | | Weight: | 195 lbs | | Local Popularity: | Well Known | | National Pop.: | Well Known |
| Status | | Contract: | None, Free Agent | | Salary: | - | | Signed Through: | - | | Major Service: | None, None | | Service This Yr: | None | | 40-Man Service: | None, None | | Pro Service: | 1 Year | | Arbitration Eligibility: | Not yet eligible | | Option Years: | 3 option years left | | Contract Extension: | - | | Drafted: | 2024, 7th Pick in Round 1 |
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| Career Pitching Stats | | Year/Team/League | Age | G | GS | W | L | SV | ERA | IP | HA | R | ER | HR | BB | K | CG | SHO | WHIP | BABIP | VORP | ERA+ |
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| Career Minor League Pitching Stats | | Year/Team/League | Age | G | GS | W | L | SV | ERA | IP | HA | R | ER | HR | BB | K | CG | SHO | WHIP | BABIP | VORP | ERA+ | | 2024 Total - COL | 22 | 15 | 15 | 7 | 4 | 0 | 3.78 | 100.0 | 104 | 45 | 42 | 8 | 28 | 81 | 0 | 0 | 1.32 | .317 | 0.0 | 100 |
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| Career Fielding Stats | | Year/Team/League | POS | G | GS | PO | A | DP | TC | E | PCT | INN | RNG | ZR | EFF | PB | RSTA | RTO | RTO% | | | | | | | | | | | | | | | | |
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| Player History | | 11/01/2024 | Drafted in the 2024 first-year player draft (Round 1, Pick 7, 7th overall pick) by the Chiba Marines. | | 01/01/2025 | OSA scouting updated ratings (potential): Stuff: - (5); Movement: - (6); Control: - (7). | | 05/09/2025 | Named the #16 prospect in the NPB | | 10/30/2025 | Won the 2025 Nippon Professional Baseball League NPB Championship with the Chiba Marines! | | 01/01/2026 | OSA scouting updated ratings (potential): Stuff: - (5); Movement: - (7); Control: - (7). | | 05/09/2026 | Named the #16 prospect in the NPB | | 11/02/2026 | Released by the Chiba Marines. |
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