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| Player Report for #6 Sadanobu Yamasaki | | Wednesday, December 31st, 2025 |  | | Name: | Sadanobu Yamasaki | Contract: | None | | Nickname: | | Salary: | | | Birthday: | 01-02-2007 | Signed Through: | | | Age: | 18 | Years of Major League Service: | None, None | | Born in: | Fukui (Fukui) | Major League Service Days this Year: | None | | Nationality: | Japanese | | | | Height: | 5' 10" | Years on 40-Man Roster: | None, None | | Weight: | 190 lbs | Years of Pro Service: | 1 Year | | | | Arbitration Eligibility: | Not yet eligible | | Position: | MR | Minor League Option Years: | 3 option years left | | Bats: | Right | | | | Throws: | Right | Contract Extension | - | | Status: | Completely Rested | Drafted | 2024, 17th Pick in Round 2 | | Morale: | Normal | Local Popularity (National) | Unknown (Unknown) |
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| Pitching Ratings (SISA) | | Pitching | Stuff | Movement | Control | Velocity | | | Overall | 6 | 1 | 5 | 91-93 Mph | | | Versus LHP | 6 | 1 | 5 | | | | Versus RHP | 6 | 1 | 5 | | | | Talent | 6 | 7 | 9 | | |
| Pitching Ratings | | | Pitches: | Fastball, Changeup, Slider, Cutter | | Endurance: | 16 | | | | | Groundball Pct.: | 53 | | | | | Holding Runners: | 2 | | | |
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| Batting Ratings (SISA) | | Batting | Contact | Gap | Power | Discipline/Eye | Avoid K's | | | Overall | 3 | 3 | 2 | 1 | 1 | | | Versus LHP | 3 | 3 | 3 | 1 | 1 | | | Versus RHP | 3 | 3 | 2 | 1 | 1 | | | Talent | 8 | 9 | 5 | 4 | 6 | |
| Running & Bunting Ratings | | | Fielding Ratings | | Running Speed: | 8 | | Pitcher 15 | | Stealing Ability: | 9 | | | | Baserunning Instincts: | 4 | | | | Sacrifice Bunt: | 14 | | | | Bunt for Hit: | 3 | | | | Hitter Type: | Normal | | | | | | | | | | | | | | | | | |
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| Game Log, Last 10 Games | | Date | Opponent | Result | Start | IP | H | R | ER | BB | K | Dec | | | | | | | | | 06-02-2025 | AUS | Win, 7-3 | X | 2.2 | 2 | 0 | 0 | 0 | 4 | | | | | | | | | | 05-28-2025 | @ CH | Win, 7-5 | X | 5.0 | 8 | 3 | 3 | 2 | 8 | | | | | | | | | | 05-24-2025 | SP | Win, 5-1 | X | 8.0 | 3 | 1 | 0 | 1 | 7 | Win | | | | | | | | | 05-20-2025 | MAX | Win, 6-4 | X | 5.0 | 6 | 3 | 3 | 6 | 3 | | | | | | | | | | 05-15-2025 | @ BEN | Loss, 0-4 | X | 5.2 | 7 | 4 | 3 | 3 | 5 | Loss | | | | | | | | | 05-10-2025 | CAR | Loss, 5-8 | X | 5.0 | 7 | 6 | 6 | 4 | 3 | Loss | | | | | | | | | 05-05-2025 | @ UNI | Loss, 2-5 | X | 7.0 | 9 | 5 | 5 | 4 | 6 | Loss | | | | | | | | | 04-29-2025 | SEM | Loss, 0-3 | X | 7.1 | 4 | 3 | 1 | 1 | 11 | Loss | | | | | | | | | 04-22-2025 | QUA | Loss, 5-6 | X | 7.2 | 3 | 2 | 2 | 2 | 11 | | | | | | | | | | 04-17-2025 | @ AUS | Win, 9-5 | X | 5.2 | 8 | 3 | 3 | 1 | 5 | | | | | | | | |
| MLB Short Season A 2025 Pitching Stats | | Pitching | G | GS | W | L | SV | ERA | IP | HA | R | ER | HR | BB | K | CG | CG% | SHO | QS | QS% | | Overall | 1 | 1 | 0 | 1 | 0 | 27.01 | 1.2 | 8 | 5 | 5 | 0 | 0 | 2 | 0 | 0.0 | 0 | 0 | 0.0 | | Pitching | SVO | BS | SV% | RA | GF | R/9 | H/9 | K/9 | BB/9 | ERC | WHIP | VORP | BABIP | | | | | | | Overall | 0 | 0 | 0.0 | 0 | 0 | 43.22 | 43.22 | 10.80 | 0.00 | 29.13 | 4.80 | -4.4 | .727 | | | | | | | Pitching | AB | H | 2B | 3B | HR | R | BB | K | SF | SH | HP | AVG | OBP | SLG | OPS | | | | | vs. LHB | 5 | 3 | 0 | 0 | 0 | 3 | 0 | 1 | 0 | 0 | 0 | .600 | .600 | .600 | 1.200 | | | | | vs. RHB | 8 | 5 | 2 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | .625 | .625 | .875 | 1.500 | | | |
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| MLB Short Season A 2025 Pitching Splits | | Split | G | GS | W | L | SV | ERA | IP | HA | R | ER | HR | BB | K | | | April | 1 | 1 | 0 | 1 | 0 | 27.01 | 1.2 | 8 | 5 | 5 | 0 | 0 | 2 | | | Career | 1 | 1 | 0 | 1 | 0 | 27.01 | 1.2 | 8 | 5 | 5 | 0 | 0 | 2 | | | Home | 1 | 1 | 0 | 1 | 0 | 27.01 | 1.2 | 8 | 5 | 5 | 0 | 0 | 2 | | | Grass | 1 | 1 | 0 | 1 | 0 | 27.01 | 1.2 | 8 | 5 | 5 | 0 | 0 | 2 | | | Night | 1 | 1 | 0 | 1 | 0 | 27.01 | 1.2 | 8 | 5 | 5 | 0 | 0 | 2 | |
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| MLB Rookie League 2025 Pitching Stats | | Pitching | G | GS | W | L | SV | ERA | IP | HA | R | ER | HR | BB | K | CG | CG% | SHO | QS | QS% | | Overall | 12 | 12 | 1 | 6 | 0 | 4.84 | 67.0 | 68 | 42 | 36 | 0 | 35 | 71 | 0 | 0.0 | 0 | 3 | 25.0 | | Pitching | SVO | BS | SV% | RA | GF | R/9 | H/9 | K/9 | BB/9 | ERC | WHIP | VORP | BABIP | | | | | | | Overall | 0 | 0 | 0.0 | 0 | 0 | 14.51 | 9.13 | 9.54 | 4.70 | 3.94 | 1.54 | 6.4 | .351 | | | | | | | Pitching | AB | H | 2B | 3B | HR | R | BB | K | SF | SH | HP | AVG | OBP | SLG | OPS | | | | | vs. LHB | 115 | 24 | 6 | 0 | 0 | 19 | 16 | 31 | 1 | 0 | 2 | .209 | .313 | .261 | .574 | | | | | vs. RHB | 150 | 44 | 5 | 0 | 0 | 23 | 19 | 40 | 0 | 0 | 3 | .293 | .384 | .327 | .710 | | | |
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| MLB Rookie League 2025 Pitching Splits | | Split | G | GS | W | L | SV | ERA | IP | HA | R | ER | HR | BB | K | | | April | 5 | 5 | 0 | 3 | 0 | 5.02 | 28.2 | 26 | 20 | 16 | 0 | 15 | 35 | | | May | 6 | 6 | 1 | 3 | 0 | 5.05 | 35.2 | 40 | 22 | 20 | 0 | 20 | 32 | | | June | 1 | 1 | 0 | 0 | 0 | 0.00 | 2.2 | 2 | 0 | 0 | 0 | 0 | 4 | | | Career | 12 | 12 | 1 | 6 | 0 | 4.84 | 67.0 | 68 | 42 | 36 | 0 | 35 | 71 | | | Home | 8 | 8 | 1 | 4 | 0 | 4.53 | 43.2 | 36 | 27 | 22 | 0 | 25 | 47 | | | Road | 4 | 4 | 0 | 2 | 0 | 5.40 | 23.1 | 32 | 15 | 14 | 0 | 10 | 24 | | | Grass | 12 | 12 | 1 | 6 | 0 | 4.84 | 67.0 | 68 | 42 | 36 | 0 | 35 | 71 | | | Day | 6 | 6 | 1 | 3 | 0 | 4.50 | 34.0 | 36 | 19 | 17 | 0 | 13 | 30 | | | Night | 6 | 6 | 0 | 3 | 0 | 5.18 | 33.0 | 32 | 23 | 19 | 0 | 22 | 41 | |
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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 |
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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 | | 2025 Fairway - R | 18 | 12 | 12 | 1 | 6 | 0 | 4.84 | 67.0 | 68 | 42 | 36 | 0 | 35 | 71 | 0 | 0 | 1.54 | .351 | 6.4 | | 2025 Highland Village - S A | 18 | 1 | 1 | 0 | 1 | 0 | 27.01 | 1.2 | 8 | 5 | 5 | 0 | 0 | 2 | 0 | 0 | 4.80 | .727 | -4.4 | | Total MLBS A | | 1 | 1 | 0 | 1 | 0 | 27.01 | 1.2 | 8 | 5 | 5 | 0 | 0 | 2 | 0 | 0 | 4.80 | .727 | -4.4 | | Total MLBR | | 12 | 12 | 1 | 6 | 0 | 4.84 | 67.0 | 68 | 42 | 36 | 0 | 35 | 71 | 0 | 0 | 1.54 | .351 | 6.4 |
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| Player History | | 06-15-2024 | Drafted in the 2024 first-year player draft (Round 2, Pick 17, 47th overall Pick) by the Colorado Rockies. | | 01-01-2025 | SISA scouting updated ratings (potential): Stuff: 6 (9); Movement: 2 (9); Control: 1 (7). | | 06-02-2025 | Injured (tender shoulder), out for 1-2 weeks. | | 07-08-2025 | Released by the Colorado organization. |
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