P Mitsuo Kobayashi #18
Age: 20 | Bats: R | Throws: R | Morale: Very Good    
12/31/2025
P MITSUO KOBAYASHI #18 - AGE: 20 - BATS: R - THROWS: R - MORALE: VERY GOOD
G GS Rec SV ERA IP HA HR BB K WHIP WAR
22 0 1-1 0 4.81 24.1 32 4 13 24 1.85 -0.3
PITCHING RATINGS (OSA)
Pot. Overall Vs Left Vs Right Pot.
Stuff 47
Movement 47
Control 54
PITCHING RATINGS
Pitch Cur. Pot.
Fastball - 82
Curveball - 89
Changeup - 5
 
 
OTHER PITCHING RATINGS
Velocity 94-96 Mph
Stamina 64
Suggested Role Borderline SP
Groundball Percentage 58 %
Hold Runners 34
Defense 41
RUN/BUNT RATINGS
Running Speed: 4
Stealing Ability: 5
Baserunning Inst.: 25
Sacrifice Bunt: 17
Bunt for Hit: 11
   
GAME LOG, LAST 10 GAMES
Date Vs. Result Start IP H R ER BB K Dec
08/29/2026 @ CON Loss, 0-0 1.1 0 0 0 0 2
08/26/2026 AUS Loss, 0-0 1.1 0 0 0 0 2
08/23/2026 @ NEW Loss, 0-0 0.1 1 2 2 1 1
08/22/2026 @ BAR Loss, 0-0 0.1 2 2 2 1 0
08/08/2026 @ VIC Loss, 0-0 0.1 2 0 0 1 0
08/02/2026 @ NEW Loss, 0-0 1.2 2 1 1 1 0 Win
07/28/2026 @ CHI Loss, 0-0 0.2 1 0 0 2 2
07/25/2026 @ WIN Loss, 0-0 0.2 1 2 2 1 2 Loss
07/16/2026 @ CON Loss, 0-0 0.2 2 1 1 1 0
06/30/2026 @ VIC Loss, 0-0 1.2 3 1 1 0 0
PERSONALITY
Leader Ability:Normal
Loyalty:High
Desire f. Win:Normal
Greed:High
Intelligence:High
Work Ethic:Normal
Birthday:11/11/2005
Born in:Tsuruga, FUK
Nationality:Japanese
Height:5' 11"
Weight:175 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:None
Arbitration Eligibility:Not yet eligible
Option Years:3 option years left
Contract Extension: -
Drafted:2025, 21st Pick in Round 3
SINGLE A 2025 PITCHING STATS
Pitching G GS W L SV ERA IP HA R ER HR BB K CG CG% SHO QS QS%
Overall 22 0 1 1 0 4.81 24.1 32 13 13 4 13 24 0 0.0 0 0 0.0
Pitching SVO BS SV% RA GF R/9 H/9 K/9 BB/9 FIP WHIP FIP- WAR BABIP        
Overall 2 1 0.0 22 3 17.38 11.84 8.88 4.81 5.68 1.85 131 -0.3 .384        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 34 14 4 0 2 7 5 4 0 1 2 .412 .512 .706 1.218      
vs. RHB 67 18 2 0 2 6 8 20 0 0 0 .269 .347 .388 .735      
SINGLE A 2025 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
April 3 0 0 0 0 2.45 3.2 5 1 1 1 1 4  
May 1 0 0 0 0 0.00 1.1 2 0 0 0 1 1  
June 2 0 0 0 0 3.86 2.1 4 1 1 1 0 0  
July 3 0 0 1 0 13.50 2.0 4 3 3 1 4 4  
August 8 0 1 0 0 6.23 8.2 10 6 6 0 6 8  
September 5 0 0 0 0 2.84 6.1 7 2 2 1 1 7  
Career 22 0 1 1 0 4.81 24.1 32 13 13 4 13 24  
Home 1 0 0 0 0 0.00 1.1 0 0 0 0 0 2  
Road 1 0 0 0 0 0.00 1.1 2 0 0 0 1 1  
Grass 21 0 1 1 0 4.13 24.0 30 11 11 4 12 24  
Turf 1 0 0 0 0 54.00 0.1 2 2 2 0 1 0  
Day 7 0 0 1 0 9.00 7.0 8 7 7 0 5 10  
Night 15 0 1 0 0 3.12 17.1 24 6 6 4 8 14  
As Reliever / Substitution 22 0 1 1 0 4.81 24.1 32 13 13 4 13 24  
NIPPON BASEBALL LEAGUE 2025 PITCHING STATS
Pitching G GS W L SV ERA IP HA R ER HR BB K CG CG% SHO QS QS%
Overall 15 15 6 4 0 3.82 77.2 69 35 33 7 15 102 0 0.0 0 5 33.3
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 10.20 8.00 11.82 1.74 2.76 1.08 52 3.3 .321        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 98 17 2 0 0 6 2 48 1 0 1 .173 .196 .194 .390      
vs. RHB 201 52 11 1 7 29 13 54 2 0 3 .259 .311 .428 .738      
NIPPON BASEBALL LEAGUE 2025 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
March 4 4 2 0 0 1.54 23.1 16 5 4 1 2 30  
April 4 4 1 2 0 6.16 19.0 20 13 13 3 7 21  
May 5 5 2 1 0 3.65 24.2 24 11 10 1 6 35  
June 2 2 1 1 0 5.06 10.2 9 6 6 2 0 16  
All-Star Game 1 0 1 0 0 0.00 1.0 1 0 0 0 1 1  
Last Year 8 8 3 2 0 2.78 45.1 37 17 14 4 16 49  
Career 23 23 9 6 0 3.44 123.0 106 52 47 11 31 151  
Home 8 8 3 2 0 4.57 41.1 37 22 21 5 9 54  
Road 7 7 3 2 0 2.97 36.1 32 13 12 2 6 48  
Grass 13 13 6 2 0 3.65 69.0 62 30 28 6 13 90  
Turf 2 2 0 2 0 5.19 8.2 7 5 5 1 2 12  
Day 11 11 5 3 0 3.74 55.1 49 25 23 5 11 70  
Night 4 4 1 1 0 4.03 22.1 20 10 10 2 4 32  
As Starter 15 15 6 4 0 3.82 77.2 69 35 33 7 15 102  
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+
2024 Fukuoka SoftBank - COL 18 8 8 3 2 0 2.78 45.1 37 17 14 4 16 49 0 0 1.17 .284 3.61 1.5 194
2025 Fukuoka SoftBank - COL 19 15 15 6 4 0 3.82 77.2 69 35 33 7 15 102 0 0 1.08 .321 2.76 3.3 139
2025 Kingwood - A 19 22 0 1 1 0 4.81 24.1 32 13 13 4 13 24 0 0 1.85 .384 5.68 -0.3 86
Total A 22 0 1 1 0 4.81 24.1 32 13 13 4 13 24 0 0 1.85 .384 5.68 85.8
Total Pro Feeder 23 23 9 6 0 3.44 123.0 106 52 47 11 31 151 0 0 1.11 .307 3.08 159.0
CAREER POSTSEASON 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+
2024 Fukuoka SoftBank - Pro Feeder 18 1 1 0 0 0 1.80 5.0 3 1 1 0 2 9 0 0 1.00 .300 0.00 0.0 0
Total Pro Feeder 1 1 0 0 0 1.80 5.0 3 1 1 0 2 9 0 0 1.00 .300 1.17 299.3
CAREER FIELDING STATS
Year/Team/League POS G GS PO A DP TC E PCT INN RNG ZR EFF PB RSTA RTO RTO%
2024 Fukuoka SoftBank - COL P 8 8 2 2 0 4 0 1.000 45.1 0.79 +0.3 1.042
2025 Kingwood - A P 22 0 4 2 1 6 0 1.000 24.1 2.22 -0.4 .788
2025 Fukuoka SoftBank - COL P 15 15 2 7 0 11 2 .818 77.2 1.04 +0.6 1.031
TOTAL P 45 23 8 11 1 21 2 .905 147.1 1.16 +0.6 .964
PLAYER HISTORY
06/07/2024 Joined the Fukuoka SoftBank Hawks.
07/02/2024 Injured (shoulder inflammation), out for 4 weeks.
09/09/2024 Wins the 2024 NIPPON BASEBALL LEAGUE Japan Series Championship with the Fukuoka SoftBank Hawks!
01/01/2025 OSA scouting updated ratings (potential): Stuff: - (48); Movement: - (42); Control: - (55).
05/15/2025 Was selected to the 2025 NIPPON BASEBALL LEAGUE All-Star Game.
06/07/2025 Drafted in the 2025 first-year player draft (Round 3, Pick 21, 78th overall pick) by the Maple Marauders.
06/14/2025 Released by the Fukuoka SoftBank Hawks.
06/14/2025 Signed a minor league contract with the Maple Marauders organization with a signing bonus of $260,000.
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