P Seisaburo Hayashi #21
Spring Park Green Knights (SYR) A-
Age: 21 | Bats: R | Throws: R | Morale: Normal
06/22/2026
 OA: 20 POT: 25
BNN Index | A- | SCORES | STANDINGS | STATS | TEAMS | PLAYERS | TRANSACTIONS | HISTORY
P SEISABURO HAYASHI #21 - AGE: 21 - BATS: R - THROWS: R - MORALE: NORMAL
G GS Rec SV ERA IP HA HR BB K WHIP WAR
8 6 2-3 0 7.34 30.2 41 7 16 16 1.86 -0.2
PITCHING RATINGS (OSA)
Overall Pot. Overall Vs Left Vs Right Pot.
Stuff 25 20 25 40
Movement 25 20 25 30
Control 20 20 20 25
PITCHING RATINGS
Pitch Cur. Pot.
Fastball 30 40
Slider 25 40
Changeup 20 25
Sinker 25 35
 
OTHER PITCHING RATINGS
Velocity 90-92 Mph
Stamina 50
Suggested Role Borderline SP
Type Neutral
Hold Runners 40
Defense 35
RUN/BUNT RATINGS
Running Speed: 20
Stealing Ability: 20
Baserunning Inst.: 20
Sacrifice Bunt: 50
Bunt for Hit: 25
   
GAME LOG, LAST 10 GAMES
Date Vs. Result Start IP H R ER BB K Dec
06/21/2026 @ NN Loss, 2-11 3.1 7 5 5 1 2
06/19/2026 @ NN Loss, 0-1 0.2 0 0 0 0 1
06/15/2026 @ WIC Loss, 4-10 X 5.2 10 4 4 3 3
06/10/2026 @ TT Loss, 4-5 X 5.2 5 2 2 3 4
06/05/2026 @ NEW Win, 5-0 X 0.2 1 0 0 0 0
05/30/2026 @ GBM Loss, 2-4 X 6.1 2 0 0 2 2
05/25/2026 @ TAM Win, 4-2 X 8.0 7 2 2 0 2 Win
05/20/2026 @ GR Win, 2-1 X 7.0 7 1 1 2 1
05/14/2026 @ SRD Win, 8-3 X 4.1 6 3 3 2 3
05/10/2026 HUN Loss, 2-8 X 4.2 5 4 4 7 2 Loss
PERSONALITY
Seisaburo shows few loyalty traits and lacks motivation.
Birthday:06/21/2005
Born in:Ishikari, HOK
Nationality:Japanese
Height:6' 2"
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:4 Years
Arbitration Eligibility:Not yet eligible
Option Years:3 option years left
Contract Extension: -
Drafted:-
ABA CLASS A 2026 PITCHING STATS
Pitching G GS W L SV ERA IP HA R ER HR BB K CG CG% SHO QS QS%
Overall 8 8 2 1 0 2.81 41.2 38 13 13 1 16 18 0 0.0 0 3 37.5
Pitching SVO BS SV% RA GF BR/9 H/9 K/9 BB/9 FIP WHIP FIP- WAR BABIP        
Overall 0 0 0.0 0 0 12.31 8.21 3.89 3.46 4.19 1.30 89 0.8 .282        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 51 13 3 0 0 1 8 6 0 2 1 .255 .367 .314 .680      
vs. RHB 98 25 2 0 1 12 8 12 1 5 2 .255 .321 .306 .627      
ABA CLASS A 2026 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
May 6 6 2 1 0 2.80 35.1 32 11 11 1 13 14  
June 2 2 0 0 0 2.84 6.1 6 2 2 0 3 4  
Last Year 7 7 2 3 0 5.51 32.2 31 20 20 3 14 15  
Career 15 15 4 4 0 4.00 74.1 69 33 33 4 30 33  
Home 2 2 1 1 0 4.66 9.2 10 5 5 0 7 6  
Road 6 6 1 0 0 2.25 32.0 28 8 8 1 9 12  
Grass 8 8 2 1 0 2.81 41.2 38 13 13 1 16 18  
Day 3 3 1 1 0 2.81 16.0 12 5 5 0 9 8  
Night 5 5 1 0 0 2.81 25.2 26 8 8 1 7 10  
As Starter 8 8 2 1 0 2.81 41.2 38 13 13 1 16 18  
ABA ROOKIE LEAGUE 2026 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 0 0 6.00 3.0 5 3 2 0 1 2 0 0.0 0 0 0.0
Pitching SVO BS SV% RA GF BR/9 H/9 K/9 BB/9 FIP WHIP FIP- WAR BABIP        
Overall 0 0 0.0 0 0 18.00 15.00 6.00 3.00 4.10 2.00 59 0.1 .385        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 5 1 1 0 0 1 1 1 0 0 0 .200 .333 .400 .733      
vs. RHB 10 4 0 0 0 2 0 1 0 1 0 .400 .400 .400 .800      
ABA ROOKIE LEAGUE 2026 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
April 1 1 0 0 0 6.00 3.0 5 3 2 0 1 2  
Last Year 10 10 1 2 0 6.55 34.1 36 28 25 6 26 28  
Career 11 11 1 2 0 6.51 37.1 41 31 27 6 27 30  
Home 1 1 0 0 0 6.00 3.0 5 3 2 0 1 2  
Grass 1 1 0 0 0 6.00 3.0 5 3 2 0 1 2  
Day 1 1 0 0 0 6.00 3.0 5 3 2 0 1 2  
As Starter 1 1 0 0 0 6.00 3.0 5 3 2 0 1 2  
ABA CLASS A- 2026 PITCHING STATS
Pitching G GS W L SV ERA IP HA R ER HR BB K CG CG% SHO QS QS%
Overall 8 6 2 3 0 7.34 30.2 41 25 25 7 16 16 0 0.0 0 0 0.0
Pitching SVO BS SV% RA GF BR/9 H/9 K/9 BB/9 FIP WHIP FIP- WAR BABIP        
Overall 0 0 0.0 2 1 17.90 12.03 4.70 4.70 7.37 1.86 134 -0.2 .324        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 50 14 1 0 1 9 5 8 0 0 0 .280 .345 .360 .705      
vs. RHB 78 27 5 2 6 16 11 8 0 1 4 .346 .452 .692 1.144      
ABA CLASS A- 2026 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
Last Week 3 1 0 0 0 8.38 9.2 17 9 9 2 4 6  
April 5 5 2 3 0 6.86 21.0 24 16 16 5 12 10  
June 3 1 0 0 0 8.38 9.2 17 9 9 2 4 6  
Career 8 6 2 3 0 7.34 30.2 41 25 25 7 16 16  
Home 2 2 0 2 0 9.39 7.2 14 8 8 2 4 6  
Road 6 4 2 1 0 6.65 23.0 27 17 17 5 12 10  
Grass 4 4 2 2 0 5.09 17.2 21 10 10 3 10 9  
Turf 4 2 0 1 0 10.38 13.0 20 15 15 4 6 7  
Day 3 2 1 1 0 10.97 10.2 17 13 13 3 7 5  
Night 5 4 1 2 0 5.40 20.0 24 12 12 4 9 11  
As Starter 6 6 2 3 0 6.75 26.2 34 20 20 7 15 13  
As Reliever / Substitution 2 0 0 0 0 11.25 4.0 7 5 5 0 1 3  
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+
2021 (SYR) Reno - DL 15 10 0 0 0 1 7.11 19.0 28 15 15 3 23 7 0 0 2.68 .352 7.06 -0.3 71
2025 Picture Rocks - R 19 10 10 1 2 0 6.55 34.1 36 28 25 6 26 28 0 0 1.81 .280 7.92 0.4 117
2025 Fremont - A 19 7 7 2 3 0 5.51 32.2 31 20 20 3 14 15 0 0 1.38 .267 5.32 0.1 79
2026 Picture Rocks - R 20 1 1 0 0 0 6.00 3.0 5 3 2 0 1 2 0 0 2.00 .385 4.10 0.1 119
2026 Spring Park - A- 20 8 6 2 3 0 7.34 30.2 41 25 25 7 16 16 0 0 1.86 .324 7.37 -0.2 74
2026 Fremont - A 20 8 8 2 1 0 2.81 41.2 38 13 13 1 16 18 0 0 1.30 .282 4.19 0.8 162
2026 Total - A 20 16 14 4 4 0 4.73 72.1 79 38 38 8 32 34 0 0 1.53 .301 5.54 0.6 108
Total A 15 15 4 4 0 4.00 74.1 69 33 33 4 30 33 0 0 1.33 .275 4.69 110.9
Total AR 11 11 1 2 0 6.51 37.1 41 31 27 6 27 30 0 0 1.82 .292 7.61 117.5
Total A- 8 6 2 3 0 7.34 30.2 41 25 25 7 16 16 0 0 1.86 .324 7.37 74.0
CAREER FIELDING STATS
Year/Team/League POS G GS PO A DP TC E PCT INN RNG ZR EFF PB RSTA RTO RTO%
2021 (SYR) Reno - DL P 10 0 0 3 0 3 0 1.000 19.0 1.42 -0.0 .924
2026 Fremont - A P 8 8 5 6 0 11 0 1.000 41.2 2.38 -0.1 .999
2026 Spring Park - A- P 8 6 6 2 0 8 0 1.000 30.2 2.35 +0.5 1.657
2026 Picture Rocks - R P 1 1 0 1 0 1 0 1.000 3.0 3.00 +0.0 1.025
TOTAL P 27 15 11 12 0 23 0 1.000 94.1 2.19 +0.4 1.126
PLAYER HISTORY
08/10/2021 Signed a minor league contract out of Japan with the Syracuse Scorpions organization.
12/16/2021 Named to the 2021 Sun Coast Baseball League for the (SYR) Reno Thieves.
01/01/2022 OSA scouting updated ratings (potential): Stuff: 30 (40); Movement: 35 (45); Control: 25 (35).
01/01/2022 OSA scouting updated ratings (potential): Stuff: 30 (40); Movement: 35 (45); Control: 25 (35).
01/01/2023 OSA scouting updated ratings (potential): Stuff: 30 (40); Movement: 35 (40); Control: 25 (35).
01/01/2023 OSA scouting updated ratings (potential): Stuff: 30 (40); Movement: 35 (40); Control: 25 (35).
01/01/2024 OSA scouting updated ratings (potential): Stuff: 20 (40); Movement: 20 (30); Control: 20 (25).
01/01/2025 OSA scouting updated ratings (potential): Stuff: 20 (40); Movement: 20 (30); Control: 20 (25).
07/01/2025 Injured (back tightness),day-to-day for 1 day.
01/01/2026 OSA scouting updated ratings (potential): Stuff: 20 (40); Movement: 20 (30); Control: 20 (25).
06/05/2026 Injured (back spasms),day-to-day for 3 days.
Tuesday, May 12th , 2026 - OOTP Baseball 26.8 Build 82