P Nick 'The Joker' Trefethen #31
Seattle(ACL) Mariners (SEA) ACL
Age: 19 | Bats: R | Throws: R | Morale: Normal
12/08/2025
BNN Index | ACL | SCORES | STANDINGS | STATS | TEAMS | PLAYERS | TRANSACTIONS | HISTORY
P NICK 'THE JOKER' TREFETHEN #31 - AGE: 19 - 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 Pot. Overall Vs Left Vs Right Pot.
Stuff 20 20 20 55
Movement 45 45 45 75
Control 40 40 40 80
PITCHING RATINGS
Pitch Cur. Pot.
Fastball 40 75
Slider 30 45
Curveball 20 50
Changeup 20 55
Sinker 25 50
Cutter 25 65
OTHER PITCHING RATINGS
Velocity 94-96 Mph
Stamina 65
Suggested Role Starter
Type Groundball Pitcher
Hold Runners 35
Defense 55
RUN/BUNT RATINGS
Running Speed: 35
Stealing Ability: 20
Baserunning Inst.: 30
Sacrifice Bunt: 55
Bunt for Hit: 20
   
GAME LOG, LAST 10 GAMES
Date Vs. Result Start IP H R ER BB K Dec
08/12/2025 Dba1 Loss, 1-4 X 5.0 4 0 0 2 7
08/07/2025 Pir1 Win, 5-4 X 6.2 5 0 0 0 6
07/22/2025 Gia1 Win, 5-3 X 7.0 7 2 2 0 11
PERSONALITY
Birthday:11/15/2006
Born in:New York, NY
Nationality:American
Height:6' 0"
Weight:175 lbs
Local Popularity:Well Known
National Pop.:Fair
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:2025, 12th Pick in Round 1
DOMINICAN ROOKIE LEAGUE 2025 PITCHING STATS
Pitching G GS W L SV ERA IP HA R ER HR BB K CG CG% SHO QS QS%
Overall 3 3 0 0 0 0.96 18.2 16 2 2 0 2 24 0 0.0 0 2 66.7
Pitching SVO BS SV% RA GF BR/9 H/9 K/9 BB/9 FIP WHIP FIP- WAR BABIP        
Overall 0 0 0.0 0 0 8.68 7.71 11.57 0.96 1.01 0.96 23 1.2 .340        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 21 5 1 0 0 2 1 8 0 1 0 .238 .273 .286 .558      
vs. RHB 50 11 3 0 0 0 1 16 0 1 0 .220 .235 .280 .515      
DOMINICAN ROOKIE LEAGUE 2025 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
July 1 1 0 0 0 2.57 7.0 7 2 2 0 0 11  
August 2 2 0 0 0 0.00 11.2 9 0 0 0 2 13  
Career 3 3 0 0 0 0.96 18.2 16 2 2 0 2 24  
Home 3 3 0 0 0 0.96 18.2 16 2 2 0 2 24  
Grass 3 3 0 0 0 0.96 18.2 16 2 2 0 2 24  
Night 3 3 0 0 0 0.96 18.2 16 2 2 0 2 24  
As Starter 3 3 0 0 0 0.96 18.2 16 2 2 0 2 24  
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 Total - 18 15 15 11 0 0 0.91 118.2 68 15 12 3 19 193 0 0 0.73 .289 0.83 7.9 100
2025 Seattle (DSL) - R 18 3 3 0 0 0 0.96 18.2 16 2 2 0 2 24 0 0 0.96 .340 1.01 1.2 465
Total DSL 3 3 0 0 0 0.96 18.2 16 2 2 0 2 24 0 0 0.96 .340 1.01 465.3
CAREER FIELDING STATS
Year/Team/League POS G GS PO A DP TC E PCT INN RNG ZR EFF PB RSTA RTO RTO%
2025 Seattle (DSL) - R P 3 3 2 4 0 6 0 1.000 18.2 2.89 +0.2 1.301
TOTAL P 3 3 2 4 0 6 0 1.000 18.2 2.89 +0.2 1.301
PLAYER HISTORY
07/11/2025 Drafted in the 2025 first-year player draft out of high school (Hackettstown High School; Hackettstown, NJ) by the Seattle Mariners. (Round 1, Pick 12, 12th overall pick).
07/20/2025 Signed a minor league contract with the Seattle Mariners organization with a signing bonus of $9,900,000.
07/23/2025 Injured on 07/22/2025, diagnosed with a stiff back, is day-to-day.
11/01/2025 Named the #12 prospect in the MLB
Saturday, September 20th , 2025 - OOTP Baseball 26.7 Build 77