P Rafael Sierra #14
Age: 17 | Bats: L | Throws: R | Morale: Normal    
12/31/2026
P RAFAEL SIERRA #14 - AGE: 17 - BATS: L - THROWS: R - MORALE: NORMAL
G GS Rec SV ERA IP HA HR BB K WHIP WAR
6 0 2-0 0 18.78 7.2 15 2 13 11 3.65 -0.3
PITCHING RATINGS (OSA)
Pot. Overall Vs Left Vs Right Pot.
Stuff 7
Movement 12
Control 6
PITCHING RATINGS
Pitch Cur. Pot.
Fastball - 8
Slider - 10
Changeup - 13
 
 
OTHER PITCHING RATINGS
Velocity 83-85 Mph
Stamina 6
Suggested Role Starter
Groundball Percentage 50 %
Hold Runners 5
Defense 5
RUN/BUNT RATINGS
Running Speed: 1
Stealing Ability: 1
Baserunning Inst.: 1
Sacrifice Bunt: 13
Bunt for Hit: 2
   
GAME LOG, LAST 10 GAMES
Date Vs. Result Start IP H R ER BB K Dec
05/05/2026 @ BTHS Loss, 1-10 0.2 4 6 6 5 1
04/29/2026 BWHS Win, 20-2 2.0 0 0 0 1 2 Win
04/25/2026 @ HUN Loss, 4-19 0.1 1 0 0 1 1
04/14/2026 @ TUL Win, 17-4 2.1 3 2 2 1 3 Win
04/10/2026 OC Loss, 7-16 0.1 3 4 4 3 0
04/06/2026 @ NN Loss, 1-12 2.0 4 4 4 2 4
PERSONALITY
Leader Ability:Normal
Loyalty:Low
Desire f. Win:Very Low
Greed:Normal
Intelligence:Normal
Work Ethic:Normal
Birthday:03/30/2009
Born in:Severna Park, MD
Nationality:American
Height:6' 3"
Weight:175 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:None
Arbitration Eligibility:Not yet eligible
Option Years:3 option years left
Contract Extension: -
Drafted:-
HIGH SCHOOL STARS LEAGUE 2026 PITCHING STATS
Pitching G GS W L SV ERA IP HA R ER HR BB K CG CG% SHO QS QS%
Overall 6 0 2 0 0 18.78 7.2 15 16 16 2 13 11 0 0.0 0 0 0.0
Pitching SVO BS SV% RA GF R/9 H/9 K/9 BB/9 FIP WHIP FIP- WAR BABIP        
Overall 0 0 0.0 6 1 35.22 17.61 12.91 15.26 10.19 3.65 166 -0.3 .500        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 11 4 1 0 2 6 11 4 0 0 1 .364 .696 1.000 1.696      
vs. RHB 28 11 2 0 0 10 2 7 0 0 1 .393 .452 .464 .916      
HIGH SCHOOL STARS LEAGUE 2026 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
April 5 0 2 0 0 12.86 7.0 11 10 10 2 8 10  
May 1 0 0 0 0 81.00 0.2 4 6 6 0 5 1  
Last Year 6 0 0 0 0 10.45 10.1 16 12 12 2 9 11  
Career 12 0 2 0 0 14.00 18.0 31 28 28 4 22 22  
Home 2 0 1 0 0 15.43 2.1 3 4 4 0 4 2  
Road 4 0 1 0 0 20.25 5.1 12 12 12 2 9 9  
Grass 6 0 2 0 0 18.78 7.2 15 16 16 2 13 11  
Day 2 0 1 0 0 0.00 2.1 1 0 0 0 2 3  
Night 4 0 1 0 0 27.00 5.1 14 16 16 2 11 8  
As Reliever / Substitution 6 0 2 0 0 18.78 7.2 15 16 16 2 13 11  
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 Maris School - HS 16 6 0 0 0 0 10.45 10.1 16 12 12 2 9 11 0 0 2.42 .438 7.49 -0.1 61
2026 Maris School - HS 17 6 0 2 0 0 18.78 7.2 15 16 16 2 13 11 0 0 3.65 .500 10.19 -0.3 33
Total HSSL 12 0 2 0 0 14.00 18.0 31 28 28 4 22 22 0 0 2.94 .466 8.64 49.0
CAREER FIELDING STATS
Year/Team/League POS G GS PO A DP TC E PCT INN RNG ZR EFF PB RSTA RTO RTO%
2026 Maris School - HS P 6 0 0 1 0 1 0 1.000 7.2 1.17 +0.1 1.056
TOTAL P 6 0 0 1 0 1 0 1.000 7.2 1.17 +0.1 1.056
PLAYER HISTORY
07/01/2024 Joined the Maris School.
01/01/2025 OSA scouting updated ratings (potential): Stuff: - (4); Movement: - (7); Control: - (7).
01/01/2026 OSA scouting updated ratings (potential): Stuff: - (5); Movement: - (7); Control: - (7).
Monday, December 5th, 2016 - OOTP Baseball 17.12 Build 75