P John 'Boy Wonder' Kelso #32
Age: 26 | Bats: L | Throws: L | Morale: Normal
12/31/2025
P JOHN 'BOY WONDER' KELSO #32 - AGE: 26 - BATS: L - THROWS: L - MORALE: NORMAL
G GS Rec SV ERA IP HA HR BB K WHIP WAR
7 0 2-1 0 4.26 12.2 9 1 11 12 1.58 -0.1
PITCHING RATINGS (OSA)
Overall Pot. Overall Vs Left Vs Right Pot.
Stuff 6 6 6 6
Movement 4 4 4 4
HRA 4 4 4 5
PBABIP 4 4 4 5
Control 5 5 5 5
PITCHING RATINGS
Pitch Cur. Pot.
Fastball 8 8
Changeup 5 5
 
 
 
OTHER PITCHING RATINGS
Velocity 95-97 Mph
Stamina 25
Suggested Role Strictly BP
Type Groundball Pitcher
Hold Runners 70
Defense 50
RUN/BUNT RATINGS
Running Speed: 25
Stealing Ability: 25
Baserunning Inst.: 30
Sacrifice Bunt: 65
Bunt for Hit: 20
   
GAME LOG, LAST 10 GAMES
Date Vs. Result Start IP H R ER BB K Dec
10/04/2025 CHI Loss, 4-7 1.0 0 0 0 0 0
08/22/2025 NSH Loss, 2-5 3.1 0 0 0 3 4
07/26/2025 TOR Loss, 3-10 3.1 4 3 3 5 2
07/05/2025 @ ATL Loss, 2-4 1.0 0 0 0 0 1
06/21/2025 DET Win, 6-5 1.2 1 0 0 0 2 Win
06/07/2025 CHI Win, 12-8 1.2 0 0 0 0 1 Win
05/18/2025 TB Loss, 3-4 1.0 2 3 0 1 1 Loss
05/17/2025 TB Loss, 10-14 0.2 2 3 3 2 1
04/17/2025 TB Loss, 4-9 0.1 0 0 0 0 0
04/16/2025 @ NSH Win, 5-3 1.0 0 0 0 1 2
PERSONALITY
To call Kelso a perfectionist is an understatement.
Low: Leader
Birthday:04/02/1999
Born in:Oakland, CA
Nationality:American
Height:6' 0"
Weight:205 lbs
Local Popularity:Unknown
National Pop.:Unknown
STATUS
Contract:Major League Contract
Salary:$100,000
Signed Through:2026 Season
Major Service:1 Year, 82 Days
Service This Yr:158 Days
40-Man Service:2 Years, None
Pro Service:4 Years
Arbitration Eligibility:Arbitration eligible in offseason
Option Years:1 option year left
Contract Extension: -
Drafted:2020, 1st Pick in Round 4
PROFESSIONAL BASEBALL CIRCUIT 2025 PITCHING STATS
Pitching G GS W L SV ERA IP HA R ER HR BB K CG CG% SHO QS QS%
Overall 7 0 2 1 0 4.26 12.2 9 9 6 1 11 12 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 7 2 14.21 6.39 8.53 7.82 4.83 1.58 115 -0.1 .267        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 15 5 1 0 0 4 2 4 0 0 0 .333 .412 .400 .812      
vs. RHB 28 4 0 0 1 5 9 8 0 3 0 .143 .351 .250 .601      
PROFESSIONAL BASEBALL CIRCUIT 2025 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
May 2 0 0 1 0 16.20 1.2 4 6 3 0 3 2  
June 2 0 2 0 0 0.00 3.1 1 0 0 0 0 3  
July 2 0 0 0 0 6.23 4.1 4 3 3 1 5 3  
August 1 0 0 0 0 0.00 3.1 0 0 0 0 3 4  
Spring Training 13 0 0 1 1 3.75 12.0 9 5 5 2 2 16  
Postseason 1 0 0 0 0 0.00 1.0 0 0 0 0 0 0  
Last Year 14 0 1 0 9 7.45 9.2 16 8 8 4 9 10  
Career 21 0 3 1 9 5.64 22.1 25 17 14 5 20 22  
Home 6 0 2 1 0 4.63 11.2 9 9 6 1 11 11  
Road 1 0 0 0 0 0.00 1.0 0 0 0 0 0 1  
Grass 7 0 2 1 0 4.26 12.2 9 9 6 1 11 12  
Day 7 0 2 1 0 4.26 12.2 9 9 6 1 11 12  
As Reliever / Substitution 7 0 2 1 0 4.26 12.2 9 9 6 1 11 12  
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+
2024 Boston - PBC 25 14 0 1 0 9 7.45 9.2 16 8 8 4 9 10 0 0 2.59 .414 9.33 -1.1 58
2025 Boston - PBC 26 7 0 2 1 0 4.26 12.2 9 9 6 1 11 12 0 0 1.58 .267 4.83 -0.1 98
Total PBC 21 0 3 1 9 5.64 22.1 25 17 14 5 20 22 0 0 2.01 .339 6.78 -1.2 75
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+
2020 Total - 21 21 2 3 0 15 1.10 41.0 21 6 5 2 9 78 0 0 0.73 .311 0.91 2.0 100
2021 Worcester - A+ 22 16 0 1 0 6 1.93 28.0 23 8 6 3 10 20 0 0 1.18 .241 4.15 0.1 216
2021 Hartford - AA 22 24 0 3 4 8 3.99 38.1 41 19 17 6 9 37 0 0 1.30 .312 3.75 0.4 103
2022 Hartford - AA 23 21 0 1 5 6 3.94 29.2 24 15 13 4 9 35 0 0 1.11 .274 3.30 0.7 110
2022 Providence - AAA 23 23 0 1 7 6 7.31 32.0 35 26 26 8 17 39 0 0 1.62 .333 5.38 -0.6 57
2023 Providence - AAA 24 31 0 4 4 5 5.06 48.0 51 27 27 6 15 40 0 0 1.38 .310 3.82 0.6 84
2024 Providence - AAA 25 4 0 2 1 0 6.75 4.0 7 3 3 1 4 6 0 0 2.75 .500 6.39 -0.1 68
Total AAA 58 0 7 12 11 6.00 84.0 93 56 56 15 36 85 0 0 1.54 .328 4.53 70.4
Total AA 45 0 4 9 14 3.97 68.0 65 34 30 10 18 72 0 0 1.22 .297 3.56 105.8
Total A+ 16 0 1 0 6 1.93 28.0 23 8 6 3 10 20 0 0 1.18 .241 4.15 215.5
CAREER POSTSEASON 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 Boston - PBC 26 1 0 0 0 0 0.00 1.0 0 0 0 0 0 0 0 0 0.00 .000 3.33 0.0 999
Total PBC 1 0 0 0 0 0.00 1.0 0 0 0 0 0 0 0 0 0.00 .000 3.33 999.0
CAREER FIELDING STATS
Year/Team/League POS G GS PO A DP TC E PCT INN RNG ZR EFF PB RSTA RTO RTO%
2021 Hartford - AA P 24 0 0 3 0 3 0 1.000 38.1 0.70 +0.1 1.002
2021 Worcester - A+ P 16 0 3 2 0 6 1 .833 28.0 1.61 -0.1 .975
2022 Providence - AAA P 23 0 1 0 0 1 0 1.000 32.0 0.28 +0.3 .000
2022 Hartford - AA P 21 0 0 1 0 1 0 1.000 29.2 0.30 -0.2 .489
2023 Providence - AAA P 30 0 3 4 0 7 0 1.000 48.0 1.31 +0.8 .971
2024 Boston - Pro P 14 0 0 2 1 2 0 1.000 9.2 1.86 +0.4 1.003
2024 Providence - AAA P 4 0 0 0 0 0 0 .000 4.0 0.00 0.0 .000
2025 Boston - Pro P 7 0 1 1 0 2 0 1.000 12.2 1.42 +0.4 .500
TOTAL P 139 0 8 13 1 22 1 .955 202.1 0.93 +1.7 .842
PLAYER HISTORY
10/30/2020 Drafted in the 2020 first-year player draft out of college (UC Irvine; Irvine, CA) by the Boston Shamrocks. (Round 4, Pick 1, 55th overall pick).
01/01/2021 OSA scouting updated ratings (potential): Stuff: 5 (5); Movement: 5 (6); Control: 5 (8).
06/28/2021 Injured (sore elbow),day-to-day for one week.
07/27/2021 Injured (mild hamstring strain),day-to-day for one week.
10/18/2021 Wins the 2021 PBC Reserve League Two Championship Cup with the Hartford Whalers!
01/01/2022 OSA scouting updated ratings (potential): Stuff: 5 (5); Movement: 5 (5); Control: 5 (7).
12/08/2022 Injured (knee contusion),out for 2 weeks.
01/01/2023 OSA scouting updated ratings (potential): Stuff: 5 (5); Movement: 5 (5); Control: 5 (7).
06/15/2023 Injured (strained oblique),day-to-day for one week.
08/01/2023 Injured (sore elbow),day-to-day for 5 days.
01/01/2024 OSA scouting updated ratings (potential): Stuff: 5 (5); Movement: 5 (5); Control: 5 (7).
01/01/2025 OSA scouting updated ratings (potential): Stuff: 6 (6); Movement: 5 (5); Control: 5 (5).
11/15/2025 Received a 1-year contract through automatic renewal worth a total of $100,000.
LEADERBOARD APPEARANCES
Year SV Rank
2024 9 6
Thursday, April 23rd , 2026 - OOTP Baseball 27.1 Build 52