P Jacob Kostyshock #31
Age: 27 | Bats: R | Throws: R | Morale: Normal
04/14/2025
P JACOB KOSTYSHOCK #31 - AGE: 27 - BATS: R - THROWS: R - MORALE: NORMAL
G GS Rec SV ERA IP HA HR BB K WHIP WAR
0 0 0-0 0 0.00 0.0 0 0 0 0 0.00 0.0
PITCHING RATINGS (OSA)
Overall Overall Vs Left Vs Right
Stuff 40 35 40
Movement 45 45 45
Control 30 30 35
PITCHING RATINGS
Pitch Cur. Pot.
Fastball 45 -
Slider 40 -
Changeup 35 -
 
 
OTHER PITCHING RATINGS
Velocity 95-97 Mph
Stamina 30
Suggested Role Bullpen
Type Neutral
Hold Runners 40
Defense 60
RUN/BUNT RATINGS
Running Speed: 25
Stealing Ability: 25
Baserunning Inst.: 30
Sacrifice Bunt: 30
Bunt for Hit: 20
   
GAME LOG, LAST 10 GAMES
Date Vs. Result Start IP H R ER BB K Dec
08/30/2024 @ WWW Loss, 3-8 1.2 1 3 3 2 3
08/24/2024 @ MH Win, 10-7 2.1 1 0 0 0 2 Win
08/02/2024 @ ASL Loss, 1-4 1.2 1 1 1 1 1
07/27/2024 @ BFF Loss, 6-7 1.1 2 0 0 2 2
07/23/2024 WWW Win, 3-1 2.1 1 0 0 1 4
07/21/2024 @ BLG Win, 7-3 0.1 0 0 0 0 1
07/17/2024 MH Loss, 7-8 1.2 3 2 2 1 1 Loss
07/15/2024 @ SBC Win, 9-6 1.1 0 0 0 0 3 Win
07/12/2024 @ HEL Loss, 0-5 1.0 4 3 3 0 1
07/05/2024 @ GF Win, 4-2 0.2 1 0 0 0 0 Save
Birthday:01/02/1998
Born in:OFallon, MO
Nationality:American
Height:6' 4"
Weight:175 lbs
Local Popularity:Unknown
National Pop.:Unknown
STATUS
Contract:None, Free Agent
Salary:-
Signed Through:-
Major Service:
Service This Yr:
40-Man Service:
Pro Service:
Arbitration Eligibility:
Option Years:
Contract Extension:
Drafted:-
NEW YORK-PENN 2023 PITCHING STATS
Pitching G GS W L SV ERA IP HA R ER HR BB K CG CG% SHO QS QS%
Overall 5 0 1 1 2 6.43 7.0 8 5 5 2 3 7 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 3 1 66.7 5 4 14.14 10.29 9.00 3.86 6.45 1.57 137 -0.2 .333        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 12 2 0 0 1 4 2 3 0 0 0 .167 .286 .417 .702      
vs. RHB 15 6 0 0 1 1 1 4 0 0 0 .400 .438 .600 1.038      
NEW YORK-PENN 2023 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
2 Years Ago 5 0 1 1 2 6.43 7.0 8 5 5 2 3 7  
Career 35 0 3 3 15 4.00 36.0 33 16 16 7 13 42  
PIONEER LEAGUE 2024 PITCHING STATS
Pitching G GS W L SV ERA IP HA R ER HR BB K CG CG% SHO QS QS%
Overall 11 0 2 1 1 5.28 15.1 14 9 9 1 8 18 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 4 3 25.0 11 5 14.09 8.22 10.57 4.70 3.98 1.43 64 0.5 .342        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 23 3 0 0 1 1 4 9 2 0 2 .130 .290 .261 .551      
vs. RHB 32 11 3 1 0 8 4 9 0 0 0 .344 .417 .500 .917      
PIONEER LEAGUE 2024 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
July 8 0 1 1 1 4.66 9.2 11 5 5 1 5 12  
August 3 0 1 0 0 6.35 5.2 3 4 4 0 3 6  
Last Year 11 0 2 1 1 5.28 15.1 14 9 9 1 8 18  
2 Years Ago 25 0 1 5 16 6.07 26.2 27 19 18 5 18 32  
Career 83 0 8 7 21 3.96 104.2 80 47 46 8 61 144  
Home 3 0 0 1 0 3.60 5.0 4 2 2 1 3 5  
Road 8 0 2 0 1 6.10 10.1 10 7 7 0 5 13  
Grass 11 0 2 1 1 5.28 15.1 14 9 9 1 8 18  
Day 4 0 1 0 1 0.00 4.2 4 0 0 0 2 5  
Night 7 0 1 1 0 7.59 10.2 10 9 9 1 6 13  
As Reliever / Substitution 11 0 2 1 1 5.28 15.1 14 9 9 1 8 18  
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+
2020 Twin Falls - R 22 21 0 2 1 0 5.86 27.2 23 18 18 2 23 34 0 0 1.66 .328 4.31 0.2 82
2021 Princeton - S A 23 30 0 2 2 13 3.41 29.0 25 11 11 5 10 35 0 0 1.21 .282 3.58 0.3 118
2022 Twin Falls - R 24 26 0 3 0 4 0.26 35.0 16 1 1 0 12 60 0 0 0.80 .271 0.51 1.8 1625
2023 Twin Falls - R 25 25 0 1 5 16 6.07 26.2 27 19 18 5 18 32 0 0 1.69 .386 5.32 0.1 88
2023 Princeton - S A 25 5 0 1 1 2 6.43 7.0 8 5 5 2 3 7 0 0 1.57 .333 6.45 -0.2 73
2024 Twin Falls - R 26 11 0 2 1 1 5.28 15.1 14 9 9 1 8 18 0 0 1.43 .342 3.98 0.5 117
Total NYP 35 0 3 3 15 4.00 36.0 33 16 16 7 13 42 0 0 1.28 .292 4.14 105.5
Total Pio 83 0 8 7 21 3.96 104.2 80 47 46 8 61 144 0 0 1.35 .330 3.25 135.5
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+
2021 Princeton - NYP 23 2 0 0 1 0 6.75 1.1 2 1 1 0 0 1 0 0 1.50 .400 1.32 0.1 60
2023 Princeton - NYP 25 4 0 0 0 4 0.00 4.0 1 0 0 0 1 3 0 0 0.50 .100 2.70 0.1 999
Total NYP 6 0 0 1 4 1.69 5.1 3 1 1 0 1 4 0 0 0.75 .200 2.35 238.6
CAREER FIELDING STATS
Year/Team/League POS G GS PO A DP TC E PCT INN RNG ZR EFF PB RSTA RTO RTO%
2020 Twin Falls - R P 20 0 0 2 0 2 0 1.000 27.2 0.65 +0.3 2.000
2021 Princeton - S A P 29 0 0 2 0 2 0 1.000 29.0 0.62 +0.3 .992
2022 Twin Falls - R P 25 0 0 2 0 2 0 1.000 35.0 0.51 -0.5 .982
2023 Princeton - S A P 5 0 0 0 0 0 0 .000 7.0 0.00 0.0 .000
2023 Twin Falls - R P 25 0 1 5 0 6 0 1.000 26.2 2.02 +0.4 .944
2024 Twin Falls - R P 11 0 1 0 0 1 0 1.000 15.1 0.59 -0.1 .000
TOTAL P 115 0 2 11 0 13 0 1.000 140.2 0.83 +0.3 1.080
PLAYER HISTORY
01/01/2025 OSA scouting updated ratings: Stuff: 40; Movement: 45; Control: 45.
01/01/2025 OSA scouting updated ratings: Stuff: 40; Movement: 45; Control: 45.
03/03/2025 Released by the Seattle organization.
Tuesday, April 15th , 2025 - OOTP Baseball 26.2 Build 50