P Mauro Alfonso #38
Stockton Orioles (QUE) NALBA
Age: 35 | Bats: R | Throws: R | Morale: Very Unhappy
11/08/2025
BNN Index | NALBA | SCORES | STANDINGS | STATS | TEAMS | PLAYERS | TRANSACTIONS | HISTORY
P MAURO ALFONSO #38 - AGE: 35 - BATS: R - THROWS: R - MORALE: VERY UNHAPPY
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 9 9 9 9
Movement 8 8 8 8
Control 8 8 8 8
PITCHING RATINGS
Pitch Cur. Pot.
Slider 10 10
Changeup 11 11
Cutter 10 10
 
 
OTHER PITCHING RATINGS
Velocity 95-97 Mph
Stamina 13
Suggested Role Starter
Type Neutral
Hold Runners 8
Defense 11
RUN/BUNT RATINGS
Running Speed: 1
Stealing Ability: 1
Baserunning Inst.: 1
Sacrifice Bunt: 8
Bunt for Hit: 3
   
GAME LOG, LAST 10 GAMES
Date Vs. Result Start IP H R ER BB K Dec
08/08/2025 @ MAD Loss, 2-7 2.1 1 3 3 3 3
08/02/2025 WIL Win, 7-0 6.0 3 0 0 0 7 Win
07/22/2025 @ GLE Loss, 0-11 2.0 1 0 0 1 2
07/17/2025 MAD Loss, 4-6 3.1 2 1 1 5 5
07/12/2025 @ WIL Loss, 2-8 1.0 0 0 0 0 0
07/06/2025 WOO Loss, 3-6 0.2 0 0 0 1 2
06/25/2025 @ MAD Loss, 6-12 2.0 8 6 6 2 3
06/21/2025 @ HEN Loss, 2-15 1.1 7 6 5 2 1
06/12/2025 @ WOO Loss, 3-5 2.0 1 0 0 0 2
06/01/2025 @ SL2 Loss, 3-8 1.0 0 0 0 0 0
PERSONALITY
Earns his paycheck.
Birthday:09/11/1990
Born in:Jarabacoa, LA
Nationality:Dominican
Height:6' 0"
Weight:195 lbs
Local Popularity:Unknown
National Pop.:Unknown
STATUS
Contract:Minor League Contract
Salary:-
Signed Through:-
Major Service:6 Years, 57 Days
Service This Yr:None
40-Man Service:9 Years, None
Pro Service:15 Years
Arbitration Eligibility:Not eligible, free agent after contract expires!
Option Years:Out of option years
Contract Extension: -
Drafted:-
NALB TRIPLE A 2025 PITCHING STATS
Pitching G GS W L SV ERA IP HA R ER HR BB K CG CG% SHO QS QS%
Overall 22 2 6 1 0 4.17 49.2 51 24 23 8 23 50 0 0.0 0 1 50.0
Pitching SVO BS SV% RA GF BR/9 H/9 K/9 BB/9 FIP WHIP FIP- WAR BABIP        
Overall 1 1 0.0 20 8 13.59 9.24 9.06 4.17 4.43 1.49 117 -0.2 .323        
Pitching AB H 2B 3B HR R BB K SF SH HP AVG OBP SLG OPS      
vs. LHB 54 9 1 0 2 3 9 18 0 0 0 .167 .286 .296 .582      
vs. RHB 137 42 9 0 6 21 14 32 0 0 1 .307 .375 .504 .879      
NALB TRIPLE A 2025 PITCHING SPLITS
Split G GS W L SV ERA IP HA R ER HR BB K  
April 8 0 3 0 0 1.98 13.2 7 3 3 3 4 13  
May 5 2 2 1 0 2.93 15.1 21 5 5 2 5 12  
June 3 0 0 0 0 18.56 5.1 16 12 11 2 4 6  
July 4 0 0 0 0 1.29 7.0 3 1 1 0 7 9  
August 2 0 1 0 0 3.24 8.1 4 3 3 1 3 10  
All-Star Game 1 0 0 0 0 0.00 1.0 0 0 0 0 0 0  
Last Year 25 1 2 4 2 5.95 42.1 43 28 28 6 19 45  
2 Years Ago 10 2 2 1 0 2.87 31.1 27 12 10 3 8 24  
Career 200 101 51 44 16 4.95 736.0 792 435 405 77 334 611  
Home 9 1 3 1 0 2.70 23.1 24 7 7 3 10 25  
Road 13 1 3 0 0 5.47 26.1 27 17 16 5 13 25  
Grass 18 1 4 1 0 5.02 37.2 43 22 21 6 19 40  
Turf 4 1 2 0 0 1.50 12.0 8 2 2 2 4 10  
Day 10 1 1 1 0 4.50 20.0 24 11 10 4 13 20  
Night 12 1 5 0 0 3.94 29.2 27 13 13 4 10 30  
As Starter 2 2 2 0 0 0.75 12.0 16 1 1 1 3 9  
As Reliever / Substitution 20 0 4 1 0 5.26 37.2 35 23 22 7 20 41  
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+
2015 Dayton - NALB 24 6 0 0 0 0 4.24 17.0 14 8 8 1 9 12 0 0 1.35 .255 4.15 0.1 104
2016 Dayton - NALB 25 29 20 5 7 0 4.74 138.2 155 79 73 18 59 119 0 0 1.54 .339 4.41 1.3 89
2017 Dayton - NALB 26 14 5 1 2 1 4.62 50.2 49 26 26 6 23 38 0 0 1.42 .283 4.24 0.3 85
2018 Dayton - NALB 27 39 0 2 0 3 5.36 92.1 102 61 55 15 35 75 0 0 1.48 .311 5.08 -0.1 87
2019 Dayton - NALB 28 21 0 2 1 1 4.63 44.2 52 27 23 10 16 46 0 0 1.52 .333 5.08 -0.3 93
2020 Dayton - NALB 29 38 0 1 0 3 3.36 88.1 78 34 33 6 30 86 0 0 1.22 .299 3.08 1.4 121
2021 Dayton - NALB 30 29 3 2 4 1 4.22 64.0 56 31 30 7 33 46 0 0 1.39 .265 4.48 -0.0 95
2022 Dayton - NALB 31 17 0 0 0 0 2.79 38.2 30 13 12 8 9 38 0 0 1.01 .224 4.25 -0.3 126
2023 Dunedin - NALB 32 15 0 0 3 0 4.88 31.1 35 20 17 4 9 26 0 0 1.40 .310 3.65 0.0 70
Total NALB 208 28 13 17 9 4.41 565.2 571 299 277 75 223 486 0 0 1.40 .303 4.30 2.5 94
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+
2011 Santa Ana - AAA 20 26 26 13 4 0 4.72 148.2 147 86 78 11 64 125 2 0 1.42 .301 4.43 2.2 97
2012 Henderson - AA 21 3 3 1 0 0 2.70 16.2 15 5 5 1 6 4 0 0 1.26 .250 5.06 0.1 158
2012 Douglas - AA 21 15 15 1 8 0 4.66 87.0 99 56 45 4 42 61 0 0 1.62 .333 4.07 1.6 97
2012 Total - AA 21 18 18 2 8 0 4.34 103.2 114 61 50 5 48 65 0 0 1.56 .320 4.23 1.7 103
2012 Valley Mills - AAA 21 6 6 1 4 0 8.51 30.2 46 30 29 5 20 27 0 0 2.15 .406 6.12 -0.1 54
2013 Henderson - AA 22 21 21 7 7 0 3.36 126.0 112 56 47 7 38 112 1 1 1.19 .286 3.83 2.2 123
2014 Henderson - AA 23 12 12 6 4 0 3.23 75.1 75 29 27 0 26 76 0 0 1.34 .344 2.68 2.3 121
2014 Valley Mills - AAA 23 14 14 6 5 0 5.34 84.1 90 53 50 6 40 62 0 0 1.54 .316 4.38 1.1 81
2015 Valley Mills - AAA 24 26 26 10 5 0 4.62 150.0 168 83 77 11 80 108 0 0 1.65 .331 4.94 1.7 103
2016 Valley Mills - AAA 25 5 5 1 3 0 8.03 24.2 36 24 22 1 12 28 0 0 1.95 .438 3.24 0.7 57
2017 Valley Mills - AAA 26 13 13 4 7 0 5.04 80.1 98 48 45 12 33 59 1 0 1.63 .344 4.87 0.3 81
2018 Valley Mills - AAA 27 1 0 0 1 0 108.00 0.1 2 4 4 1 2 0 0 0 12.00 .500 60.20 -0.4 4
2019 Valley Mills - AAA 28 15 6 3 5 0 5.84 44.2 55 33 29 9 18 37 0 0 1.63 .341 5.60 -0.3 72
2022 Valley Mills - AAA 31 37 0 3 4 14 1.84 49.0 29 10 10 4 15 46 0 0 0.90 .207 2.95 0.9 197
2023 Tulsa - AAA 32 10 2 2 1 0 2.87 31.1 27 12 10 3 8 24 0 0 1.12 .270 3.13 0.3 117
2024 Stockton - A 33 4 0 0 0 1 0.96 9.1 7 1 1 0 2 10 0 0 0.96 .304 1.20 0.4 430
2024 Aurora - AA 33 2 0 0 0 0 5.06 5.1 6 3 3 1 3 3 0 0 1.69 .278 5.29 -0.1 81
2024 Mount Vernon - AAA 33 3 1 1 0 0 3.29 13.2 11 5 5 2 1 16 0 0 0.88 .265 2.61 0.3 105
2024 Middlesborough - AAA 33 22 0 1 4 2 7.22 28.2 32 23 23 4 18 29 0 0 1.74 .337 4.16 -0.1 51
2024 Total - AAA 33 25 1 2 4 2 5.95 42.1 43 28 28 6 19 45 0 0 1.46 .316 3.66 0.2 61
2025 Middlesborough - AAA 34 22 2 6 1 0 4.17 49.2 51 24 23 8 23 50 0 0 1.49 .323 4.43 -0.2 90
Total NALBAAA 200 101 51 44 16 4.95 736.0 792 435 405 77 334 611 3 0 1.53 .322 4.51 86.6
Total NALBAA 53 51 15 19 0 3.68 310.1 307 149 127 13 115 256 1 1 1.36 .311 3.71 114.4
Total NALBA 4 0 0 0 1 0.96 9.1 7 1 1 0 2 10 0 0 0.96 .304 1.20 429.7
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+
2020 Dayton - NALB 29 1 0 0 0 0 2.70 3.1 4 1 1 0 3 5 0 0 2.10 .571 2.69 0.1 151
2021 Dayton - NALB 30 1 0 0 0 0 0.00 0.1 0 0 0 0 0 0 0 0 0.00 .000 3.20 0.0 999
Total NALB 2 0 0 0 0 2.45 3.2 4 1 1 0 3 5 0 0 1.91 .444 2.74 166.3
CAREER FIELDING STATS
Year/Team/League POS G GS PO A DP TC E PCT INN RNG ZR EFF PB RSTA RTO RTO%
2015 Dayton - MLB P 6 0 0 1 0 1 0 1.000 17.0 0.53 -0.8 .997
2016 Dayton - MLB P 29 20 9 12 4 22 1 .955 138.2 1.36 -0.5 .941
2017 Dayton - MLB P 14 5 0 4 0 4 0 1.000 50.2 0.71 -0.6 1.032
2018 Dayton - MLB P 39 0 2 14 1 17 1 .941 92.1 1.56 +0.1 .972
2019 Dayton - MLB P 21 0 5 4 0 9 0 1.000 44.2 1.81 -0.2 1.007
2020 Dayton - MLB P 38 0 2 9 1 11 0 1.000 88.1 1.12 +0.4 1.038
2021 Dayton - MLB P 29 3 3 7 0 10 0 1.000 64.0 1.41 -0.8 .999
2022 Dayton - MLB P 17 0 3 2 1 5 0 1.000 38.2 1.16 +0.1 1.022
2023 Dunedin - MLB P 15 0 2 6 0 8 0 1.000 31.1 2.30 +0.1 1.201
2025 Middlesborough - AAA P 22 2 1 3 0 4 0 1.000 49.2 0.72 +1.0 1.570
TOTAL P 230 30 27 62 7 91 2 .978 615.1 1.30 -1.4 1.024
PLAYER HISTORY
09/17/2010 Signed a minor league contract with the Brooklyn Knights organization. Was discovered in Dominican Republic.
01/01/2011 OSA scouting updated ratings (potential): Stuff: 8 (11); Movement: 10 (10); Control: 7 (10).
06/01/2011 Wins the NALBAAA SL2 Pitcher of the Month Award.
09/08/2011 Won the 2011 NALB Triple A Round 2 with the Santa Ana Drifters!
01/01/2012 OSA scouting updated ratings (potential): Stuff: 11 (13); Movement: 10 (10); Control: 7 (10).
05/07/2012 Injured (mild hamstring strain), day-to-day for 1-2 weeks.
06/22/2012 Was traded by the Brooklyn Knights to the Dayton Grizzlies, along with MR Jason Stagg, in exchange for RF Maurílio Godim.
08/04/2012 Injured (elbow soreness), out for 3-4 weeks.
01/01/2013 OSA scouting updated ratings (potential): Stuff: 11 (12); Movement: 11 (12); Control: 9 (12).
04/01/2013 Named the #85 prospect in the NALB
05/03/2013 Injured (rotator cuff strain), out for 4 weeks.
06/09/2013 Injured (biceps tendinitis), out for one week.
07/08/2013 Pitches a 3-hit shutout against the St. Louis Heat with 9 strikeouts and 0 BB allowed!
01/01/2014 OSA scouting updated ratings (potential): Stuff: 12 (13); Movement: 13 (13); Control: 8 (10).
04/07/2014 Named the #84 prospect in the NALB
01/01/2015 OSA scouting updated ratings (potential): Stuff: 13 (14); Movement: 13 (13); Control: 8 (10).
04/06/2015 Named the #39 prospect in the NALB
05/01/2015 Wins the NALBAAA SL2 Pitcher of the Month Award.
06/04/2015 Was selected to the 2015 NALB Triple A All-Star Game.
11/20/2015 Received a 1-year contract worth a total of $300,000 through automatic renewal.
01/01/2016 OSA scouting updated ratings (potential): Stuff: 13 (15); Movement: 13 (13); Control: 8 (10).
11/14/2016 Received a 1-year contract worth a total of $300,000 through automatic renewal.
01/01/2017 OSA scouting updated ratings (potential): Stuff: 13 (14); Movement: 10 (10); Control: 10 (10).
11/12/2017 Received a 1-year contract worth a total of $300,000 through automatic renewal.
01/01/2018 OSA scouting updated ratings (potential): Stuff: 14 (14); Movement: 10 (10); Control: 11 (11).
05/23/2018 Injured on 05/20/2018, diagnosed with an elbow strain, will miss 6 weeks.
11/13/2018 Received a 1-year contract worth a total of $300,000 through automatic renewal.
01/01/2019 OSA scouting updated ratings (potential): Stuff: 14 (15); Movement: 10 (10); Control: 11 (11).
03/11/2019 Injured (Back spasms), day-to-day for 2 days.
06/25/2019 Injured (Back spasms), day-to-day for 6 days.
10/22/2019 Signed a 1-year contract extension worth a total of $474,000 with the Dayton Grizzlies organization.
01/01/2020 OSA scouting updated ratings (potential): Stuff: 14 (14); Movement: 11 (11); Control: 11 (11).
10/25/2020 Wins the 2020 World Championship with the Dayton Grizzlies.
10/30/2020 Signed a 1-year contract extension worth a total of $590,000 with the Dayton Grizzlies organization.
01/01/2021 OSA scouting updated ratings (potential): Stuff: 14 (14); Movement: 10 (10); Control: 11 (11).
03/25/2021 Injured on 03/23/2021, diagnosed with a sprained ankle, is day-to-day.
06/12/2021 Injured on 06/08/2021, diagnosed with an elbow strain, will miss 4 weeks.
10/24/2021 Wins the 2021 World Championship with the Dayton Grizzlies.
10/29/2021 Signed a 1-year contract extension worth a total of $700,000 with the Dayton Grizzlies organization.
01/01/2022 OSA scouting updated ratings (potential): Stuff: 13 (13); Movement: 8 (8); Control: 10 (10).
04/01/2022 Injured (back spasms),day-to-day for 3 days.
10/29/2022 Signed a 1-year contract extension worth a total of $860,000 with the Dayton Grizzlies organization.
01/01/2023 OSA scouting updated ratings (potential): Stuff: 13 (13); Movement: 7 (7); Control: 9 (9).
01/06/2023 Was traded by the Dayton Grizzlies to the Dunedin Otters, along with C Cody Detwiler, in exchange for LF Pablo Llama.
11/15/2023 Became a free agent.
01/01/2024 OSA scouting updated ratings (potential): Stuff: 9 (9); Movement: 8 (8); Control: 9 (9).
01/01/2024 OSA scouting updated ratings (potential): Stuff: 9 (9); Movement: 8 (8); Control: 9 (9).
01/25/2024 Signed a minor league contract with the Nashville Firecats organization.
04/25/2024 Released by the Nashville organization.
05/04/2024 Signed a minor league contract with the Quebeck Sky Chiefs organization.
11/10/2024 Signed a minor league contract extension with the Quebeck Sky Chiefs organization.
01/01/2025 OSA scouting updated ratings (potential): Stuff: 10 (10); Movement: 8 (8); Control: 8 (8).
05/30/2025 Was selected to the 2025 NALB Triple A All-Star Game.
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