P Jonathan Kellerstrass #24
Age: 21 | Bats: S | Throws: R | Morale: Normal
06/30/2026
OA: 35 POT: 45
P JONATHAN KELLERSTRASS #24 - AGE: 21 - BATS: S - THROWS: R - MORALE: NORMAL
G GS Rec SV ERA IP HA HR BB K WHIP WAR
16 0 0-0 0 3.50 18.0 16 2 9 21 1.39 0.2
PITCHING RATINGS (OSA)
Overall Pot. Overall Vs Left Vs Right Pot.
Stuff 45 40 45 65
Movement 35 35 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
06/29/2026 @ COL Loss, 6-7 1.0 0 0 0 1 1
06/25/2026 PUH Win, 3-1 1.0 0 0 0 1 2
06/17/2026 @ NSWE Win, 5-4 1.0 1 0 0 0 1
06/13/2026 MX Loss, 1-14 2.1 4 4 4 2 2
06/11/2026 MX Win, 8-7 1.0 2 1 1 1 1
06/08/2026 @ LE Win, 10-7 0.2 2 1 1 0 1
06/06/2026 LB Win, 5-1 1.0 0 0 0 0 1
06/05/2026 LB Win, 6-2 1.2 1 0 0 0 2
06/03/2026 @ BA Loss, 3-6 1.2 1 0 0 0 1
05/30/2026 KLZ Loss, 2-9 1.0 3 1 1 1 3
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 16 0 0 0 0 3.50 18.0 16 7 7 2 9 21 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 16 3 13.00 8.00 10.50 4.50 3.99 1.39 82 0.2 .304        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 30 8 0 1 2 5 3 8 1 0 1 .267 .343 .533 .876      
vs. RHB 37 8 3 0 0 2 6 13 1 0 0 .216 .318 .297 .615      
ABA CLASS A 2026 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
This Week 1 0 0 0 0 0.00 1.0 0 0 0 0 1 1  
Last Week 1 0 0 0 0 0.00 1.0 0 0 0 0 1 2  
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  
Career 16 0 0 0 0 3.50 18.0 16 7 7 2 9 21  
Home 9 0 0 0 0 5.59 9.2 12 6 6 1 7 13  
Road 7 0 0 0 0 1.08 8.1 4 1 1 1 2 8  
Grass 16 0 0 0 0 3.50 18.0 16 7 7 2 9 21  
Day 5 0 0 0 0 6.14 7.1 7 5 5 1 3 10  
Night 11 0 0 0 0 1.69 10.2 9 2 2 1 6 11  
As Reliever / Substitution 16 0 0 0 0 3.50 18.0 16 7 7 2 9 21  
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 2.34 1.31 43 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 2.34 0.7 263
2026 Bangor - A 21 16 0 0 0 0 3.50 18.0 16 7 7 2 9 21 0 0 1.39 .304 3.99 0.2 139
2026 Total - A 21 26 0 0 1 6 2.90 31.0 27 10 10 2 15 36 0 0 1.35 .316 3.30 1.0 173
Total A 16 0 0 0 0 3.50 18.0 16 7 7 2 9 21 0 0 1.39 .304 3.99 138.7
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 2.34 262.9
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 16 0 1 1 0 2 0 1.000 18.0 1.00 +0.1 .995
2026 Sikeston - A- P 10 0 0 3 1 3 0 1.000 13.0 2.08 -0.1 .999
TOTAL P 26 0 1 4 1 5 0 1.000 31.0 1.45 +0.0 .998
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, May 14th , 2026 - OOTP Baseball 26.8 Build 82