P Kelvin Rosario #9
Age: 20 | Bats: L | Throws: L | Morale: Unhappy
04/26/2027
OA: 20 POT: 27
P KELVIN ROSARIO #9 - AGE: 20 - BATS: L - THROWS: L - MORALE: UNHAPPY
G GS Rec SV ERA IP HA HR BB K WHIP WAR
6 0 0-0 0 5.19 8.2 10 2 12 6 2.54 -0.5
PITCHING RATINGS (OSA)
Overall Pot. Overall Vs Left Vs Right Pot.
Stuff 30 30 30 40
Movement 35 35 35 45
Control 20 20 20 35
PITCHING RATINGS
Pitch Cur. Pot.
Fastball 35 40
Slider 40 40
Cutter 35 35
 
 
OTHER PITCHING RATINGS
Velocity 89-91 Mph
Stamina 50
Suggested Role Strictly BP
Type Neutral
Hold Runners 50
Defense 55
RUN/BUNT RATINGS
Running Speed: 30
Stealing Ability: 25
Baserunning Inst.: 35
Sacrifice Bunt: 45
Bunt for Hit: 30
   
GAME LOG, LAST 10 GAMES
Date Vs. Result Start IP H R ER BB K Dec
04/23/2027 @ FMY Win, 5-0 1.2 0 0 0 5 3
04/18/2027 TAM Loss, 3-6 1.2 3 1 1 1 1
04/16/2027 TAM Loss, 4-5 1.1 0 0 0 1 1
04/15/2027 TAM Loss, 4-7 1.0 1 0 0 0 0
04/13/2027 TAM Loss, 5-12 1.2 2 2 2 3 0
04/09/2027 @ LAK Loss, 7-8 1.1 4 2 2 2 1
08/22/2026 PhiR Loss, 5-6 2.2 1 1 1 1 2 Loss
08/18/2026 Yan1 Win, 8-7 0.1 1 0 0 2 0
08/17/2026 @ PhiW Win, 7-6 2.1 3 0 0 1 1
08/13/2026 PhiR Loss, 1-2 2.2 1 0 0 1 2
PERSONALITY
"Steady as you go" describes Kelvin.
Birthday:08/28/2006
Born in:Puerto Plata, PUE
Nationality:Dominican
Height:6' 2"
Weight:135 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:-
DOMINICAN 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 15 0 2 2 0 4.12 24.0 22 11 11 2 20 28 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 1 1 0.0 15 5 16.88 8.25 10.50 7.50 5.45 1.75 107 -0.0 .364        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 17 5 2 0 0 1 8 5 0 0 1 .294 .538 .412 .950      
vs. RHB 68 17 5 0 2 10 12 23 0 2 2 .250 .378 .412 .790      
DOMINICAN ROOKIE LEAGUE 2026 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
June 5 0 0 1 0 10.29 7.0 8 8 8 2 7 12  
July 5 0 1 0 0 2.70 6.2 4 2 2 0 7 10  
August 5 0 1 1 0 0.87 10.1 10 1 1 0 6 6  
Last Year 15 0 2 2 0 4.12 24.0 22 11 11 2 20 28  
2 Years Ago 14 0 0 1 5 8.50 18.0 24 18 17 4 15 18  
Career 52 8 4 7 5 5.15 94.1 94 57 54 9 64 103  
Home 8 0 0 1 0 2.19 12.1 6 3 3 0 8 16  
Road 7 0 2 1 0 6.17 11.2 16 8 8 2 12 12  
Grass 15 0 2 2 0 4.12 24.0 22 11 11 2 20 28  
Day 12 0 2 2 0 4.05 20.0 20 9 9 2 16 25  
Night 3 0 0 0 0 4.50 4.0 2 2 2 0 4 3  
As Reliever / Substitution 15 0 2 2 0 4.12 24.0 22 11 11 2 20 28  
FLORIDA STATE LEAGUE 2027 PITCHING STATS
Pitching G GS W L SV ERA IP HA R ER HR BB K CG CG% SHO QS QS%
Overall 6 0 0 0 0 5.19 8.2 10 5 5 2 12 6 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 6 1 22.85 10.38 6.23 12.46 8.68 2.54 224 -0.5 .308        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 9 1 0 0 0 1 5 0 0 0 0 .111 .429 .111 .540      
vs. RHB 25 9 3 0 2 4 7 6 0 0 0 .360 .500 .720 1.220      
FLORIDA STATE LEAGUE 2027 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
Last Week 1 0 0 0 0 0.00 1.2 0 0 0 0 5 3  
April 6 0 0 0 0 5.19 8.2 10 5 5 2 12 6  
Career 6 0 0 0 0 5.19 8.2 10 5 5 2 12 6  
Home 4 0 0 0 0 4.76 5.2 6 3 3 2 5 2  
Road 2 0 0 0 0 6.00 3.0 4 2 2 0 7 4  
Grass 6 0 0 0 0 5.19 8.2 10 5 5 2 12 6  
Night 6 0 0 0 0 5.19 8.2 10 5 5 2 12 6  
As Reliever / Substitution 6 0 0 0 0 5.19 8.2 10 5 5 2 12 6  
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+
2023 Arizona (DSL) - R 16 7 5 0 2 0 5.30 18.2 18 12 11 1 11 18 0 0 1.55 .315 3.74 0.3 74
2023 Arizona (DSL) - R 16 5 3 0 1 0 4.61 13.2 8 7 7 0 6 15 0 0 1.02 .250 2.54 0.4 86
2023 Total - R 16 12 8 0 3 0 5.01 32.1 26 19 18 1 17 33 0 0 1.33 .291 3.23 0.7 79
2024 Arizona (DSL) - R 17 10 0 1 1 0 4.15 17.1 20 9 8 2 10 21 0 0 1.73 .419 4.92 0.0 112
2024 Arizona (DSL) - R 17 1 0 1 0 0 0.00 2.2 2 0 0 0 2 3 0 0 1.50 .333 3.60 0.1 999
2024 Total - R 17 11 0 2 1 0 3.60 20.0 22 9 8 2 12 24 0 0 1.70 .408 4.75 0.1 130
2025 Arizona (DSL) - R 18 14 0 0 1 5 8.50 18.0 24 18 17 4 15 18 0 0 2.17 .408 8.17 -0.6 59
2026 Arizona (DSL) - R 19 15 0 2 2 0 4.12 24.0 22 11 11 2 20 28 0 0 1.75 .364 5.45 -0.0 123
2027 Clearwater - A 20 6 0 0 0 0 5.19 8.2 10 5 5 2 12 6 0 0 2.54 .308 8.68 -0.5 75
Total DSL 52 8 4 7 5 5.15 94.1 94 57 54 9 64 103 0 0 1.67 .356 5.06 88.4
Total FSL 6 0 0 0 0 5.19 8.2 10 5 5 2 12 6 0 0 2.54 .308 8.68 74.7
CAREER FIELDING STATS
Year/Team/League POS G GS PO A DP TC E PCT INN RNG ZR EFF PB RSTA RTO RTO%
2026 Arizona (DSL) - R P 15 0 0 3 0 3 0 1.000 24.0 1.12 +0.7 .894
2027 Clearwater - A P 6 0 1 0 0 1 0 1.000 8.2 1.04 +0.4 .000
TOTAL P 21 0 1 3 0 4 0 1.000 32.2 1.10 +1.0 .894
PLAYER HISTORY
01/15/2023 Signed by the Arizona Diamondbacks as an international free agent.
01/01/2025 OSA scouting updated ratings (potential): Stuff: 30 (35); Movement: 35 (45); Control: 20 (35).
01/01/2025 OSA scouting updated ratings (potential): Stuff: 30 (35); Movement: 35 (45); Control: 20 (35).
07/12/2025 Injured (elbow strain),out for 4 weeks.
01/01/2026 OSA scouting updated ratings (potential): Stuff: 30 (40); Movement: 35 (45); Control: 20 (35).
01/01/2026 OSA scouting updated ratings (potential): Stuff: 30 (40); Movement: 35 (45); Control: 20 (35).
01/01/2027 OSA scouting updated ratings (potential): Stuff: 30 (35); Movement: 35 (45); Control: 20 (30).
01/01/2027 OSA scouting updated ratings (potential): Stuff: 30 (35); Movement: 35 (45); Control: 20 (30).
02/05/2027 Released by the Arizona Diamondbacks.
02/18/2027 Signed a 1-year minor league contract with the Jersey Shore BlueClaws organization.
Saturday, August 17th , 2024 - OOTP Baseball 25.7 Build 80