P Jonathan Kellerstrass #24
Age: 21 | Bats: S | Throws: R | Morale: Unhappy
08/28/2026
OA: 35 POT: 45
P JONATHAN KELLERSTRASS #24 - AGE: 21 - BATS: S - THROWS: R - MORALE: UNHAPPY
G GS Rec SV ERA IP HA HR BB K WHIP WAR
40 0 2-3 2 4.10 48.1 47 6 17 58 1.32 0.8
PITCHING RATINGS (OSA)
Overall Pot. Overall Vs Left Vs Right Pot.
Stuff 45 40 45 65
Movement 35 30 40 45
Control 35 35 35 45
PITCHING RATINGS
Pitch Cur. Pot.
Fastball 55 75
Slider 50 80
 
 
 
OTHER PITCHING RATINGS
Velocity 97-99 Mph
Stamina 30
Suggested Role Bullpen
Type Neutral
Hold Runners 35
Defense 45
RUN/BUNT RATINGS
Running Speed: 30
Stealing Ability: 40
Baserunning Inst.: 50
Sacrifice Bunt: 40
Bunt for Hit: 20
   
GAME LOG, LAST 10 GAMES
Date Vs. Result Start IP H R ER BB K Dec
08/23/2026 @ LE Win, 20-3 3.1 4 1 1 0 5 Save
08/21/2026 @ LE Win, 9-7 0.1 1 2 2 1 1
08/19/2026 LB Loss, 5-8 0.0 3 3 3 0 0 Loss
08/18/2026 LB Win, 7-6 1.0 0 0 0 0 1 Win
08/16/2026 @ BA Win, 7-3 1.0 1 0 0 1 0
08/15/2026 @ BA Loss, 2-5 1.0 1 0 0 0 1
08/13/2026 KLZ Loss, 2-3 1.1 1 0 0 0 0
08/10/2026 WD Win, 11-8 1.0 2 2 2 0 2
08/08/2026 WD Loss, 3-4 1.0 0 0 0 0 3
08/07/2026 @ DOL Loss, 8-11 1.0 2 0 0 0 1
PERSONALITY
Always focuses and concentrates on the right things.
Personality Class: Unknown
Birthday:05/05/2005
Born in:Long Beach, CA
Nationality:American
Height:6' 3"
Weight:195 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:2025, 21st Pick in Round 4
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 40 0 2 3 2 4.10 48.1 47 23 22 6 17 58 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 1 66.7 40 13 12.48 8.75 10.80 3.17 3.69 1.32 77 0.8 .339        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 85 24 3 1 3 13 6 27 1 1 1 .282 .333 .447 .780      
vs. RHB 98 23 5 0 3 10 11 31 1 3 2 .235 .321 .378 .699      
ABA CLASS A 2026 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
Last Week 4 0 1 1 1 11.57 4.2 8 6 6 2 1 7  
May 7 0 0 0 0 1.35 6.2 5 1 1 1 4 9  
June 9 0 0 0 0 4.76 11.1 11 6 6 1 5 12  
July 11 0 0 2 1 3.31 16.1 12 7 6 0 6 20  
August 13 0 2 1 1 5.79 14.0 19 9 9 4 2 17  
Career 40 0 2 3 2 4.10 48.1 47 23 22 6 17 58  
Home 23 0 2 3 0 6.07 26.2 30 19 18 4 11 33  
Road 17 0 0 0 2 1.66 21.2 17 4 4 2 6 25  
Grass 40 0 2 3 2 4.10 48.1 47 23 22 6 17 58  
Day 13 0 0 1 1 5.40 16.2 16 11 10 2 6 22  
Night 27 0 2 2 1 3.41 31.2 31 12 12 4 11 36  
As Reliever / Substitution 40 0 2 3 2 4.10 48.1 47 23 22 6 17 58  
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 10 0 0 1 6 2.08 13.0 11 3 3 0 6 15 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 7 1 85.7 10 9 13.15 7.62 10.38 4.15 2.37 1.31 44 0.7 .333        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 22 5 0 0 0 1 4 7 1 1 0 .227 .333 .227 .561      
vs. RHB 25 6 3 0 0 2 2 8 0 0 2 .240 .345 .360 .705      
ABA CLASS A- 2026 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
April 7 0 0 1 4 2.00 9.0 7 2 2 0 3 9  
May 3 0 0 0 2 2.25 4.0 4 1 1 0 3 6  
Career 10 0 0 1 6 2.08 13.0 11 3 3 0 6 15  
Home 7 0 0 1 4 2.00 9.0 7 2 2 0 3 9  
Road 3 0 0 0 2 2.25 4.0 4 1 1 0 3 6  
Grass 9 0 0 1 6 2.45 11.0 9 3 3 0 4 13  
Turf 1 0 0 0 0 0.00 2.0 2 0 0 0 2 2  
Day 2 0 0 0 1 0.00 3.0 4 0 0 0 2 3  
Night 8 0 0 1 5 2.70 10.0 7 3 3 0 4 12  
As Reliever / Substitution 10 0 0 1 6 2.08 13.0 11 3 3 0 6 15  
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+
2025 Central Arizona College - JUCO 20 20 0 0 4 9 5.40 23.1 34 16 14 1 10 32 0 0 1.89 .452 2.10 1.1 71
2025 Buffalo - R 20 25 0 4 1 1 4.60 31.1 41 19 16 1 6 42 0 0 1.50 .430 2.91 1.3 142
2026 Sikeston - A- 21 10 0 0 1 6 2.08 13.0 11 3 3 0 6 15 0 0 1.31 .333 2.37 0.7 262
2026 Bangor - A 21 40 0 2 3 2 4.10 48.1 47 23 22 6 17 58 0 0 1.32 .339 3.69 0.8 117
2026 Total - A 21 50 0 2 4 8 3.67 61.1 58 26 25 6 23 73 0 0 1.32 .338 3.41 1.5 132
Total A 40 0 2 3 2 4.10 48.1 47 23 22 6 17 58 0 0 1.32 .339 3.69 116.7
Total AR 25 0 4 1 1 4.60 31.1 41 19 16 1 6 42 0 0 1.50 .430 2.91 141.7
Total AJUCO 20 0 0 4 9 5.40 23.1 34 16 14 1 10 32 0 0 1.89 .452 2.10 71.3
Total A- 10 0 0 1 6 2.08 13.0 11 3 3 0 6 15 0 0 1.31 .333 2.37 262.3
CAREER FIELDING STATS
Year/Team/League POS G GS PO A DP TC E PCT INN RNG ZR EFF PB RSTA RTO RTO%
2026 Bangor - A P 39 0 2 3 0 5 0 1.000 48.1 0.93 +0.1 .744
2026 Sikeston - A- P 10 0 0 3 1 3 0 1.000 13.0 2.08 -0.1 1.017
TOTAL P 49 0 2 6 1 8 0 1.000 61.1 1.17 +0.1 .861
PLAYER HISTORY
01/30/2025 Joined the Central Arizona College Vaqueros.
02/19/2025 Unsuccessfully completed training to improve his infield defense at the Central Arizona College Vaqueros development complex.
06/07/2025 Released by the Central Arizona College Vaqueros.
06/07/2025 Drafted in the 2025 first-year player draft (Round 4, Pick 21, 102nd overall pick) by the Maine Pines.
01/01/2026 OSA scouting updated ratings (potential): Stuff: 40 (65); Movement: 35 (45); Control: 30 (45).
Thursday, June 4th , 2026 - OOTP Baseball 26.8 Build 82