P Koichi Yamasaki #53
Age: 20 | Bats: L | Throws: L | Morale: Good    
12/31/2024
P KOICHI YAMASAKI #53 - AGE: 20 - BATS: L - THROWS: L - MORALE: GOOD
G GS Rec SV ERA IP HA HR BB K WHIP WAR
35 35 12-12 0 6.01 185.2 237 30 101 157 1.82 0.7
PITCHING RATINGS (OSA)
Pot. Overall Vs Left Vs Right Pot.
Stuff 38
Movement 37
Control 45
PITCHING RATINGS
Pitch Cur. Pot.
Fastball - 53
Slider - 46
Curveball - 57
Changeup - 68
Forkball - 52
OTHER PITCHING RATINGS
Velocity 91-93 Mph
Stamina 53
Suggested Role Starter
Groundball Percentage 62 %
Hold Runners 58
Defense 23
RUN/BUNT RATINGS
Running Speed: 41
Stealing Ability: 1
Baserunning Inst.: 33
Sacrifice Bunt: 33
Bunt for Hit: 12
   
GAME LOG, LAST 10 GAMES
Date Vs. Result Start IP H R ER BB K Dec
09/24/2024 FRI Win, 5-2 X 6.2 9 2 2 2 5
09/18/2024 NEW Win, 1-0 X 5.2 2 0 0 0 6 Win
09/13/2024 @ FRI Win, 6-0 X 5.2 3 0 0 3 7 Win
09/07/2024 TEM Win, 14-4 X 6.2 9 4 4 2 4 Win
09/02/2024 SIL Win, 10-5 X 6.0 5 3 3 4 5 Win
08/28/2024 @ OTT Win, 13-7 X 4.0 11 6 3 2 3
08/23/2024 @ BUZ Loss, 9-10 X 6.2 11 8 8 2 4 Loss
08/18/2024 NEW Win, 11-7 X 5.0 10 6 6 2 3
08/13/2024 @ WIC Win, 20-10 X 5.0 6 2 2 2 5 Win
08/07/2024 @ OTT Win, 18-12 X 4.0 8 8 8 2 5
PERSONALITY
Leader Ability:High
Loyalty:Very High
Desire f. Win:Low
Greed:Low
Intelligence:Normal
Work Ethic:Low
Birthday:04/06/2004
Born in:Unknown
Nationality:Japanese
Height:6' 0"
Weight:185 lbs
Local Popularity:Unknown
National Pop.:Unknown
STATUS
Contract:Minor League Contract
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:2023, 11th Pick in Round 3
DOUBLE A 2024 PITCHING STATS
Pitching G GS W L SV ERA IP HA R ER HR BB K CG CG% SHO QS QS%
Overall 35 35 12 12 0 6.01 185.2 237 145 124 30 101 157 0 0.0 0 12 34.3
Pitching SVO BS SV% RA GF R/9 H/9 K/9 BB/9 FIP WHIP FIP- WAR BABIP        
Overall 0 0 0.0 0 0 16.68 11.49 7.61 4.90 5.75 1.82 119 0.7 .356        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 157 48 8 2 9 31 21 38 1 0 2 .306 .392 .554 .946      
vs. RHB 605 189 32 3 21 114 80 119 6 0 4 .312 .393 .479 .872      
DOUBLE A 2024 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
April 6 6 1 3 0 10.73 24.1 40 36 29 5 19 15  
May 6 6 1 5 0 7.76 31.1 42 29 27 6 16 29  
June 6 6 2 1 0 2.65 37.1 31 13 11 7 21 34  
July 6 6 3 1 0 4.05 33.1 40 22 15 3 21 28  
August 6 6 1 2 0 10.36 28.2 56 36 33 5 13 24  
September 5 5 4 0 0 2.64 30.2 28 9 9 4 11 27  
Career 35 35 12 12 0 6.01 185.2 237 145 124 30 101 157  
Home 16 16 7 6 0 5.12 91.1 107 58 52 20 41 82  
Road 19 19 5 6 0 6.87 94.1 130 87 72 10 60 75  
Grass 35 35 12 12 0 6.01 185.2 237 145 124 30 101 157  
Night 35 35 12 12 0 6.01 185.2 237 145 124 30 101 157  
As Starter 35 35 12 12 0 6.01 185.2 237 145 124 30 101 157  
CAREER PITCHING STATS
Year/Team/League Age G GS W L SV ERA IP HA R ER HR BB K CG SHO WHIP BABIP FIP WAR ERA+
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 FIP WAR ERA+
2022 Yomiuri - COL 18 12 12 5 3 0 4.42 73.1 67 42 36 6 23 80 0 0 1.23 .303 3.74 2.3 123
2023 Yomiuri - COL 19 16 16 8 4 0 3.06 97.0 81 36 33 12 32 114 0 0 1.16 .286 3.96 2.6 169
2023 Beach City - A 19 9 0 3 0 0 4.66 19.1 17 10 10 3 10 26 0 0 1.40 .326 4.67 0.1 99
2024 West Coast - AA 20 35 35 12 12 0 6.01 185.2 237 145 124 30 101 157 0 0 1.82 .356 5.75 0.7 80
Total AA 35 35 12 12 0 6.01 185.2 237 145 124 30 101 157 0 0 1.82 .356 5.75 80.4
Total A 9 0 3 0 0 4.66 19.1 17 10 10 3 10 26 0 0 1.40 .326 4.67 99.5
Total Pro Feeder 28 28 13 7 0 3.65 170.1 148 78 69 18 55 194 0 0 1.19 .294 3.86 149.2
CAREER FIELDING STATS
Year/Team/League POS G GS PO A DP TC E PCT INN RNG ZR EFF PB RSTA RTO RTO%
2022 Yomiuri - COL P 12 12 1 4 0 6 1 .833 73.1 0.61 -0.2 .721
2023 Beach City - A P 9 0 1 4 0 5 0 1.000 19.1 2.33 -0.2 .895
2023 Yomiuri - COL P 16 16 5 17 1 24 2 .917 97.0 2.04 +1.2 1.066
2024 West Coast - AA P 35 35 13 21 0 37 3 .919 185.2 1.65 +0.6 .962
TOTAL P 72 63 20 46 1 72 6 .917 375.1 1.58 +1.4 .958
PLAYER HISTORY
06/07/2022 Joined the Yomiuri Giants.
08/09/2022 Injured (sore elbow), day-to-day for 4 days.
01/01/2023 OSA scouting updated ratings (potential): Stuff: - (50); Movement: - (43); Control: - (46).
05/18/2023 Was selected to the 2023 NIPPON BASEBALL LEAGUE All-Star Game.
06/02/2023 Injured (wrist soreness), day-to-day for 6 days.
06/07/2023 Drafted in the 2023 first-year player draft (Round 3, Pick 11, 66th overall pick) by the Manhattan Beach Patriots.
06/27/2023 Released by the Yomiuri Giants.
06/27/2023 Signed a minor league contract with the Manhattan Beach Patriots organization with a signing bonus of $320,000.
01/01/2024 OSA scouting updated ratings (potential): Stuff: - (40); Movement: - (39); Control: - (49).
09/18/2024 Injured (tender shoulder), day-to-day for 5 days.
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