P Diomede Sierra #31
Vancouver Canadians (TOR) NWL
Age: 26 | Bats: L | Throws: L | Morale: Great
07/31/2028
 OA: 20 POT: 20
BNN Index | NWL | SCORES | STANDINGS | STATS | TEAMS | PLAYERS | TRANSACTIONS | HISTORY
P DIOMEDE SIERRA #31 - AGE: 26 - BATS: L - THROWS: L - MORALE: GREAT
G GS Rec SV ERA IP HA HR BB K WHIP WAR
24 0 1-1 0 2.51 14.1 14 2 12 24 1.81 0.2
PITCHING RATINGS (OSA)
Overall Pot. Overall Vs Left Vs Right Pot.
Stuff 40 50 35 40
Movement 55 65 50 55
Control 35 40 35 35
PITCHING RATINGS
Pitch Cur. Pot.
Slider 55 55
Changeup 45 45
Sinker 50 50
 
 
OTHER PITCHING RATINGS
Velocity 93-95 Mph
Stamina 50
Suggested Role Starter
Type Extreme Groundball
Hold Runners 50
Defense 55
RUN/BUNT RATINGS
Running Speed: 20
Stealing Ability: 30
Baserunning Inst.: 30
Sacrifice Bunt: 40
Bunt for Hit: 20
   
GAME LOG, LAST 10 GAMES
Date Vs. Result Start IP H R ER BB K Dec
07/30/2028 @ HIL Win, 5-4 0.2 1 1 1 1 0
07/29/2028 @ HIL Win, 17-10 0.0 0 0 0 2 0
07/28/2028 @ HIL Win, 6-2 0.1 0 0 0 1 2
07/25/2028 EUG Win, 4-2 0.1 0 0 0 0 0
07/23/2028 EVE Win, 3-2 1.0 0 0 0 0 3
07/22/2028 EVE Win, 6-2 1.0 0 0 0 0 1
07/20/2028 @ SPO Loss, 7-9 0.1 1 0 0 1 0
07/13/2028 HIL Win, 5-4 0.1 2 1 1 0 0
06/27/2028 @ HIL Win, 9-4 0.1 1 0 0 1 1
06/26/2028 @ HIL Loss, 4-5 1.0 0 0 0 0 2
PERSONALITY
He seldom factors loyalty into his decisions and often fails to run out plays.
High: Financial Ambition
Low: Leader, Loyalty, Work Ethic
Birthday:09/11/2001
Born in:Santo Domingo, DIS
Nationality:Dominican
Height:6' 2"
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:8 Years
Arbitration Eligibility:Not yet eligible
Option Years:3 option years left
Contract Extension: -
Drafted:-
NORTHWEST LEAGUE 2028 PITCHING STATS
Pitching G GS W L SV ERA IP HA R ER HR BB K CG CG% SHO QS QS%
Overall 24 0 1 1 0 2.51 14.1 14 4 4 2 12 24 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 3 3 0.0 24 3 16.95 8.79 15.07 7.53 4.74 1.81 88 0.2 .400        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 28 9 0 0 1 1 3 12 0 0 0 .321 .387 .429 .816      
vs. RHB 27 5 1 0 1 3 9 12 1 1 1 .185 .395 .333 .728      
NORTHWEST LEAGUE 2028 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
Last Week 4 0 0 0 0 6.75 1.1 1 1 1 1 4 2  
April 3 0 0 0 0 0.00 1.1 2 0 0 0 1 3  
May 6 0 0 1 0 2.45 3.2 3 1 1 0 5 5  
June 7 0 1 0 0 1.69 5.1 5 1 1 1 1 10  
July 8 0 0 0 0 4.50 4.0 4 2 2 1 5 6  
Career 24 0 1 1 0 2.51 14.1 14 4 4 2 12 24  
Home 12 0 1 0 0 1.17 7.2 5 1 1 0 5 12  
Road 12 0 0 1 0 4.05 6.2 9 3 3 2 7 12  
Grass 18 0 1 1 0 2.38 11.1 11 3 3 1 7 18  
Turf 6 0 0 0 0 3.00 3.0 3 1 1 1 5 6  
Day 9 0 1 0 0 3.60 5.0 5 2 2 2 4 6  
Night 15 0 0 1 0 1.93 9.1 9 2 2 0 8 18  
As Reliever / Substitution 24 0 1 1 0 2.51 14.1 14 4 4 2 12 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+
2019 Arizona (DSL) - R 17 14 13 0 2 0 2.60 45.0 29 23 13 0 34 40 0 0 1.40 .254 4.49 0.3 152
2021 Arizona (ACL) - R 19 8 6 0 4 0 7.36 18.1 24 22 15 0 13 24 0 0 2.02 .407 4.02 0.3 56
2022 Visalia - A 20 19 19 3 5 0 5.13 73.2 73 56 42 8 48 81 0 0 1.64 .323 4.90 0.3 79
2023 Oakland (DSL) - R 21 1 0 0 0 0 54.00 0.1 0 2 2 0 1 1 0 0 3.00 .000 15.20 -0.0 11
2023 Stockton - A 21 21 21 10 2 0 3.83 108.0 89 48 46 17 54 152 0 0 1.32 .324 5.04 2.0 145
2023 Lansing - A+ 21 11 0 4 0 0 4.56 23.2 24 13 12 0 14 24 0 0 1.61 .381 3.76 0.4 114
2023 Total - A+ 21 32 21 14 2 0 3.96 131.2 113 61 58 17 68 176 0 0 1.37 .337 4.81 2.5 139
2024 Oakland (DSL) - R 22 10 6 7 0 0 0.81 44.2 17 5 4 0 29 71 0 0 1.03 .218 2.77 1.9 704
2024 Stockton - A 22 4 4 1 0 0 4.43 22.1 20 11 11 3 12 30 0 0 1.43 .327 5.18 0.4 132
2025 Stockton - A 23 26 26 13 4 0 2.17 136.2 97 36 33 8 77 212 0 0 1.27 .326 3.48 5.4 279
2025 Lansing - A+ 23 1 1 1 0 0 3.60 5.0 5 2 2 0 2 9 0 0 1.40 .500 1.18 0.3 144
2025 Total - A+ 23 27 27 14 4 0 2.22 141.2 102 38 35 8 79 221 0 0 1.28 .332 3.40 5.8 270
2026 Stockton - A 24 21 21 6 5 0 4.00 110.1 118 51 49 13 54 135 0 0 1.56 .375 4.75 2.4 141
2026 Lansing - A+ 24 7 3 1 1 0 6.43 14.0 16 10 10 1 6 15 0 0 1.57 .375 3.72 0.4 81
2026 Total - A+ 24 28 24 7 6 0 4.27 124.1 134 61 59 14 60 150 0 0 1.56 .375 4.63 2.8 130
2027 Lincoln - R 25 14 1 0 1 1 8.31 8.2 6 8 8 0 3 12 0 0 1.04 .300 3.95 0.4 97
2028 Vancouver - A+ 26 24 0 1 1 0 2.51 14.1 14 4 4 2 12 24 0 0 1.81 .400 4.74 0.2 215
Total NWL 24 0 1 1 0 2.51 14.1 14 4 4 2 12 24 0 0 1.81 .400 4.74 215.3
Total MWL 19 4 6 1 0 5.06 42.2 45 25 24 1 22 48 0 0 1.57 .389 3.44 103.0
Total CAL 91 91 33 16 0 3.61 451.0 397 202 181 49 245 610 0 0 1.42 .339 4.48 144.3
Total ACL 8 6 0 4 0 7.36 18.1 24 22 15 0 13 24 0 0 2.02 .407 4.02 56.1
Total DSL 25 19 7 2 0 1.90 90.0 46 30 19 0 64 112 0 0 1.22 .240 3.68 231.3
Total MR 14 1 0 1 1 8.31 8.2 6 8 8 0 3 12 0 0 1.04 .300 3.95 96.9
CAREER FIELDING STATS
Year/Team/League POS G GS PO A DP TC E PCT INN RNG ZR EFF PB RSTA RTO RTO%
2028 Vancouver - A+ P 23 0 0 1 0 1 0 1.000 14.1 0.63 +0.0 .915
TOTAL P 23 0 0 1 0 1 0 1.000 14.1 0.63 +0.0 .915
PLAYER HISTORY
07/02/2018 Signed by the Arizona Diamondbacks as an international free agent.
03/05/2023 Drafted in the 2023 inaugural draft (Round 150, Pick 14, 4782nd overall pick) by the Oakland Athletics.
06/25/2023 Was selected to the 2023 California League All-Star Game.
08/01/2023 Wins the CAL Pitcher of the Month Award.
09/18/2023 Wins the 2023 California League Round 2 with the Stockton Ports!
09/21/2023 Wins the 2023 Dominican Rookie League Round 4 with the Oakland (DSL) Athletics!
01/01/2024 OSA scouting updated ratings (potential): Stuff: 50 (50); Movement: 40 (45); Control: 30 (35).
09/19/2024 Wins the 2024 California League Round 2 with the Stockton Ports!
01/01/2025 OSA scouting updated ratings (potential): Stuff: 50 (55); Movement: 45 (45); Control: 30 (35).
06/29/2025 Was selected to the 2025 California League All-Star Game.
08/15/2025 Strikes out 15 against the Bakersfield Blaze.
09/20/2025 Wins the 2025 Midwest League Round 2 with the Lansing Lugnuts!
10/01/2025 Wins the 2025 CAL Glove Wizard Award at P.
10/04/2025 Wins the 2025 CAL Outstanding Pitcher Award.
01/01/2026 OSA scouting updated ratings (potential): Stuff: 50 (50); Movement: 45 (45); Control: 35 (35).
08/30/2026 Injured (shoulder inflammation),out for 6 months.
12/04/2026 Became a minor league free agent.
01/01/2027 OSA scouting updated ratings (potential): Stuff: 55 (55); Movement: 50 (55); Control: 35 (35).
02/07/2027 Signed a 1-year minor league contract with the Toronto Blue Jays organization.
05/05/2027 Injured (shoulder inflammation),out for 7 weeks.
10/03/2027 Signed a 1-year minor league contract extension with the Toronto Blue Jays organization.
01/01/2028 OSA scouting updated ratings (potential): Stuff: 45 (45); Movement: 55 (60); Control: 35 (35).
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