3B Alex 'Superfly' Sierra #17
Age: 35 | Bats: R | Throws: R | Morale: Good
12/31/2026
3B ALEX 'SUPERFLY' SIERRA #17 - AGE: 35 - BATS: R - THROWS: R - MORALE: GOOD
G AB H 2B 3B HR RBI BB K AVG OBP SLG SB WAR
125 408 104 17 1 8 47 82 100 .255 .378 .360 3 1.3
BATTING RATINGS (OSA)
Overall Pot. Overall Vs Left Vs Right Pot.  
Contact 4 4 4 4
BABIP 4 4 4 4
Avoid K's 4 5 4 4
Gap 4 4 3 4
Power 4 4 4 4
Eye 8 8 7 8
FIELDING RATINGS
Catcher Infield Outfield
Range: - 45 30
Errors: - 60 50
Arm: 20 60 55
Turn DP: - 35 -
Framing: 20 - -
POSITION RATINGS
Pitcher: - Shortstop: 25
Catcher: - Left Field: 20
1st Base: 70 Center Field: -
2nd Base: 25 Right Field: -
3rd Base: 50
       
RUN/BUNT
Running Speed: 40
Stealing Aggressiveness: 35
Stealing Ability: 40
Baserunning Inst.: 40
Sacrifice Bunt: 40
Bunt for Hit: 20
   
GAME LOG, LAST 10 GAMES
Date Vs. Result AB R H BI HR BB K SB
10/20/2026 DET Loss, 1-3 4 0 1 0 0 0 1 0
10/18/2026 @ DET Win, 7-5 3 0 0 0 0 1 1 0
10/16/2026 DET Loss, 5-7 3 0 0 1 0 2 0 0
10/15/2026 DET Win, 5-2 4 1 2 3 1 0 1 0
10/13/2026 @ DET Loss, 2-3 3 0 0 0 0 1 1 0
10/12/2026 @ DET Loss, 3-4 0 1 0 0 0 1 0 0
10/06/2026 LV Win, 7-6 1 0 0 0 0 2 0 0
10/03/2026 @ LV Win, 2-1 1 1 0 0 0 0 1 0
10/01/2026 LV Win, 3-2 3 0 0 0 0 1 1 0
09/30/2026 LV Win, 5-1 4 0 2 1 0 0 0 0
PERSONALITY
Alex brings a level-headedness to the clubhouse.
High: Adaptability
Low: Leader
Birthday:06/04/1991
Born in:Redondo Beach, CA
Nationality:American
Height:6' 4"
Weight:200 lbs
Local Popularity:Insignificant
National Pop.:Insignificant
STATUS
Contract:Major League Contract
Salary:$5,100
Signed Through:2028 Season
Major Service:7 Years, 27 Days
Service This Yr:178 Days
40-Man Service:8 Years, 28 Days
Pro Service:11 Years
Arbitration Eligibility:Not eligible, free agent after contract expires!
Option Years:Out of option years
Contract Extension: -
Drafted:2013, 5th Pick in Round 1
SEMI-PRO BASEBALL CIRCUIT 2026 BATTING STATS
Batting G AB H 2B 3B HR RBI R BB K AVG OBP SLG OPS WOBA ISO wRC+
Overall 125 408 104 17 1 8 47 67 82 100 .255 .378 .360 .738 .348 .105 114
Batting GS PA HP IW CI GDP SH SF TB EBH SB CS SB% RC RC/27 WAR  
Overall 112 495 0 0 0 9 3 2 147 26 3 5 37.5 59.9 5.01 1.3  
Batting   AB H 2B 3B HR RBI R BB K SF SH HP AVG OBP SLG OPS
Versus Left   108 25 2 0 2 9 14 27 21 0 1 0 .231 .385 .306 .691
Versus Right   300 79 15 1 6 38 53 55 79 2 2 0 .263 .375 .380 .755
Batting   AB H 2B 3B HR RBI R BB K SF SH HP AVG OBP SLG OPS
April   77 18 1 0 1 4 10 12 15 0 2 0 .234 .337 .286 .623
May   93 23 8 1 0 7 16 18 23 0 0 0 .247 .369 .355 .724
June   76 16 2 0 0 11 12 17 18 1 0 0 .211 .351 .237 .588
July   58 17 3 0 2 8 9 10 15 1 0 0 .293 .391 .448 .840
August   80 27 3 0 4 16 17 19 19 0 0 0 .338 .465 .525 .990
September   24 3 0 0 1 1 3 6 10 0 1 0 .125 .300 .250 .550
Spring Training   55 12 0 0 1 5 6 11 9 0 0 0 .218 .348 .273 .621
Postseason   26 5 1 0 1 5 3 8 6 0 0 0 .192 .382 .346 .729
Last Year   106 25 6 0 1 12 15 17 24 2 2 0 .236 .336 .321 .657
Career   514 129 23 1 9 59 82 99 124 4 5 0 .251 .370 .352 .722
Home   193 53 10 0 7 26 36 40 42 0 0 0 .275 .399 .435 .834
Road   215 51 7 1 1 21 31 42 58 2 3 0 .237 .359 .293 .652
Grass   177 43 5 1 1 15 26 31 51 2 2 0 .243 .352 .299 .652
Turf   231 61 12 0 7 32 41 51 49 0 1 0 .264 .397 .407 .804
Day   138 36 3 0 4 15 21 23 30 1 1 0 .261 .364 .370 .734
Night   270 68 14 1 4 32 46 59 70 1 2 0 .252 .385 .356 .740
As Starter   396 102 17 1 8 47 65 81 96 2 3 0 .258 .382 .366 .748
As Reliever / Substitution   12 2 0 0 0 0 2 1 4 0 0 0 .167 .231 .167 .397
Pinch Hitting   2 1 0 0 0 0 0 0 0 0 0 0 .500 .500 .500 1.000
Close/Late   95 30 3 0 2 13 15 22 27 0 2 0 .316 .444 .411 .855
Inning 1-3   119 29 7 0 2 11 21 27 31 2 0 0 .244 .378 .353 .731
Inning 4-6   147 30 4 0 2 13 21 27 32 0 1 0 .204 .328 .272 .600
Inning 7-9   132 43 6 1 4 22 23 22 33 0 2 0 .326 .422 .477 .899
Extra Innings   10 2 0 0 0 1 2 6 4 0 0 0 .200 .500 .200 .700
0 Outs   138 43 11 0 3 13 31 23 31 0 1 0 .312 .410 .457 .866
1 Outs   157 37 3 0 2 17 25 36 37 2 2 0 .236 .374 .293 .667
2 Outs   113 24 3 1 3 17 11 23 32 0 0 0 .212 .346 .336 .682
Scoring Position   127 35 4 0 2 37 18 20 31 2 3 0 .276 .369 .354 .723
Bases Empty   196 45 8 0 5 5 37 47 53 0 0 0 .230 .379 .347 .726
Runner on 1st   85 24 5 1 1 5 12 15 16 0 0 0 .282 .390 .400 .790
Runner on 2nd   48 14 1 0 0 4 8 8 14 0 3 0 .292 .393 .312 .705
Runner on 3rd   13 5 1 0 0 8 0 3 2 1 0 0 .385 .471 .462 .932
Runner on 1st & 2nd   21 5 0 0 0 3 5 2 4 0 0 0 .238 .304 .238 .542
Runner on 1st & 3rd   15 6 1 0 2 11 3 4 5 0 0 0 .400 .526 .867 1.393
Runner on 2nd & 3rd   13 4 1 0 0 7 2 1 4 1 0 0 .308 .333 .385 .718
Bases Loaded   17 1 0 0 0 4 0 2 2 0 0 0 .059 .158 .059 .217
Two Strikes   221 43 7 0 1 16 31 51 100 1 0 0 .195 .344 .240 .584
First Pitch   54 15 4 1 2 8 8 0 0 1 0 0 .278 .273 .500 .773
Count 0-1   29 11 2 0 1 3 4 0 0 0 1 0 .379 .379 .552 .931
Count 0-2   23 3 0 0 0 0 2 0 11 0 0 0 .130 .130 .130 .261
Count 1-0   27 7 0 0 1 5 2 0 0 0 1 0 .259 .259 .370 .630
Count 1-1   29 13 3 0 1 9 7 0 0 0 1 0 .448 .448 .655 1.103
Count 1-2   70 18 3 0 0 5 8 0 24 1 0 0 .257 .254 .300 .554
Count 2-0   13 2 0 0 0 0 0 0 0 0 0 0 .154 .154 .154 .308
Count 2-1   21 4 0 0 0 0 1 0 0 0 0 0 .190 .190 .190 .381
Count 2-2   57 13 2 0 1 4 5 0 27 0 0 0 .228 .228 .316 .544
Count 3-0   0 0 0 0 0 0 3 12 0 0 0 0 .000 1.000 .000 1.000
Count 3-1   14 9 1 0 2 6 11 19 0 0 0 0 .643 .848 1.143 1.991
Full Count   71 9 2 0 0 7 16 51 38 0 0 0 .127 .492 .155 .647
Behind in Count   122 32 5 0 1 8 14 0 35 1 1 0 .262 .260 .328 .588
Ahead in Count   75 22 1 0 3 11 17 31 0 0 1 0 .293 .500 .427 .927
Batting Leadoff   6 1 1 0 0 1 0 0 2 0 0 0 .167 .167 .333 .500
Batting 2nd   38 6 1 0 1 2 4 3 9 0 0 0 .158 .220 .263 .483
Batting 3rd   2 1 0 0 0 0 0 0 1 0 0 0 .500 .500 .500 1.000
Batting 4th   45 17 3 0 1 5 11 7 7 0 0 0 .378 .462 .511 .973
Batting 5th   72 15 3 0 0 3 7 10 15 0 0 0 .208 .305 .250 .555
Batting 6th   193 49 6 1 2 24 35 53 50 2 2 0 .254 .411 .326 .738
Batting 7th   35 11 2 0 3 10 6 6 10 0 1 0 .314 .415 .629 1.043
Batting 8th   16 3 1 0 1 2 3 3 6 0 0 0 .188 .316 .438 .753
Batting 9th   1 1 0 0 0 0 1 0 0 0 0 0 1.000 1.000 1.000 2.000
Low Leverage   174 41 7 1 5 17 29 35 44 0 0 0 .236 .364 .374 .737
Medium Leverage   155 40 9 0 3 15 26 32 37 2 1 0 .258 .381 .374 .755
High Leverage   76 23 1 0 0 15 12 15 18 0 2 0 .303 .418 .316 .733
CAREER BATTING STATS
Year/Team/League Age G AB H 2B 3B HR RBI R BB HP SF K SB CS AVG OBP SLG OPS OPS+ wRC+ WAR
2014 San Francisco - PBC 22 17 54 9 0 0 0 0 5 12 0 0 13 1 1 .167 .318 .167 .485 36 48 -0.3
2015 San Francisco - PBC 23 85 292 71 10 2 10 36 39 46 1 1 81 3 4 .243 .347 .394 .741 93 96 0.8
2016 El Paso - PBC 24 63 163 38 3 2 3 22 17 24 0 1 49 8 6 .233 .330 .331 .661 79 85 0.0
2017 El Paso - PBC 25 13 26 7 0 0 0 4 1 4 0 0 8 0 0 .269 .367 .269 .636 74 85 0.1
2018 El Paso - PBC 26 1 1 1 0 0 0 0 2 1 0 0 0 0 0 1.000 1.000 1.000 2.000 438 424 0.1
2019 Dallas - PBC 27 68 241 53 6 0 4 17 18 33 1 1 79 9 6 .220 .315 .295 .610 70 74 -0.4
2021 Dallas - PBC 29 64 191 53 5 1 4 22 21 35 0 1 55 5 6 .277 .388 .377 .765 110 116 0.6
2023 Dallas - PBC 31 74 258 62 7 1 2 20 20 31 1 1 64 2 4 .240 .323 .298 .621 73 75 -0.2
Total PBC 385 1226 294 31 6 23 121 123 186 3 5 349 28 27 .240 .340 .331 .671 83 87 0.8
CAREER MINOR LEAGUE BATTING STATS
Year/Team/League Age G AB H 2B 3B HR RBI R BB HP SF K SB CS AVG OBP SLG OPS OPS+ wRC+ WAR
2012 Total - 20 61 261 80 14 2 16 60 72 42 1 0 31 4 3 .307 .405 .559 .964 100 100 2.6
2013 Total - 21 50 209 62 11 1 18 46 61 36 1 2 22 4 3 .297 .399 .617 1.016 100 100 2.4
2014 Huntsville - A 22 17 61 20 3 0 3 6 7 20 0 0 9 4 1 .328 .494 .525 1.018 184 195 1.3
2014 Oakland - AAA 22 52 206 52 8 0 6 25 41 45 1 0 63 1 7 .252 .389 .379 .768 104 112 0.6
2017 Portland - AAA 25 44 161 49 10 1 6 21 28 23 1 2 26 0 0 .304 .390 .491 .881 137 148 1.4
2018 Portland - AAA 26 56 206 42 7 1 2 21 29 42 1 3 47 0 0 .204 .337 .277 .614 63 74 -0.4
2020 San Antonio - AAA 28 57 190 56 10 0 5 32 23 37 1 0 47 7 7 .295 .412 .426 .839 133 133 1.0
2022 San Antonio - AAA 30 54 114 32 6 0 3 20 21 16 0 0 33 1 1 .281 .369 .412 .782 113 118 0.5
2025 Winnipeg - Semi 33 33 106 25 6 0 1 12 15 17 0 2 24 2 2 .236 .336 .321 .657 76 79 -0.4
2026 Vacaville - Semi 34 125 408 104 17 1 8 47 67 82 0 2 100 3 5 .255 .378 .360 .738 105 114 1.3
Total AAA 263 877 231 41 2 22 119 142 163 4 5 216 9 15 .263 .379 .390 .769 107 115
Total A 17 61 20 3 0 3 6 7 20 0 0 9 4 1 .328 .494 .525 1.018 184 195
Total SPBC 158 514 129 23 1 9 59 82 99 0 4 124 5 7 .251 .370 .352 .722 99 107
CAREER POSTSEASON BATTING STATS
Year/Team/League Age G AB H 2B 3B HR RBI R BB HP SF K SB CS AVG OBP SLG OPS OPS+ wRC+ WAR
2016 El Paso - PBC 24 4 5 2 0 0 0 2 2 2 0 0 2 0 0 .400 .571 .400 .971 168 191 0.2
2026 Vacaville - SPBC 34 10 26 5 1 0 1 5 3 8 0 0 6 0 1 .192 .382 .346 .729 102 118 -0.9
Total PBC 4 5 2 0 0 0 2 2 2 0 0 2 0 0 .400 .571 .400 .971 168 191
Total SPBC 10 26 5 1 0 1 5 3 8 0 0 6 0 1 .192 .382 .346 .729 102 118
CAREER FIELDING STATS
Year/Team/League POS G GS PO A DP TC E PCT INN RNG ZR EFF PB RSTA RTO RTO%
2014 Oakland - AAA 2B 8 8 10 17 2 28 1 .964 71.0 3.42 -0.6 .918
2014 San Francisco - Pro 3B 16 15 5 31 1 36 0 1.000 132.0 2.45 -0.2 1.033
2014 Oakland - AAA 3B 37 37 21 67 7 90 2 .978 344.1 2.30 +0.7 .989
2014 Huntsville - A 3B 17 17 2 32 0 35 1 .971 159.0 1.92 +0.3 .975
2014 San Francisco - Pro SS 0 0 0 0 0 0 0 .000 0.0 0.00 0.0 .000
2014 Oakland - AAA SS 7 7 11 13 3 27 3 .889 61.0 3.54 -2.0 .707
2015 San Francisco - Pro 3B 85 85 66 140 11 213 7 .967 729.2 2.54 -1.0 .983
2016 El Paso - Pro 2B 1 0 0 1 0 1 0 1.000 6.0 1.50 +0.0 1.005
2016 El Paso - Pro 3B 53 47 22 69 3 95 4 .958 367.0 2.23 +0.1 .993
2016 El Paso - Pro SS 1 0 0 0 0 0 0 .000 3.0 0.00 0.0 .000
2017 Portland - AAA 1B 44 44 370 30 34 403 3 .993 377.2 9.53 +0.4 1.045
2017 El Paso - Pro 3B 9 6 4 9 0 13 0 1.000 46.0 2.54 +0.2 .949
2017 Portland - AAA 3B 4 0 1 2 0 3 0 1.000 8.0 3.38 +0.2 1.048
2017 El Paso - Pro SS 0 0 0 0 0 0 0 .000 0.0 0.00 0.0 .000
2017 Portland - AAA SS 2 0 2 4 0 6 0 1.000 5.0 10.80 +0.4 1.076
2018 Portland - AAA 1B 5 0 12 0 1 12 0 1.000 14.0 7.71 +0.1 1.027
2018 El Paso - Pro 2B 1 0 1 1 0 2 0 1.000 2.0 9.00 +0.1 .972
2018 Portland - AAA 3B 55 55 29 113 21 148 6 .959 478.2 2.67 -2.9 .951
2018 Portland - AAA CF 0 0 0 0 0 0 0 .000 0.0 0.00 0.0 .000
2018 Portland - AAA RF 0 0 0 0 0 0 0 .000 0.0 0.00 0.0 .000
2019 Dallas - Pro 3B 38 37 24 75 5 101 2 .980 325.0 2.74 -1.2 .974
2020 San Antonio - AAA 1B 51 50 450 30 34 480 0 1.000 445.2 9.69 +1.8 1.047
2021 Dallas - Pro 1B 29 29 240 18 16 260 2 .992 269.0 8.63 +0.4 1.008
2021 Dallas - Pro 2B 0 0 0 0 0 0 0 .000 0.0 0.00 0.0 .000
2021 Dallas - Pro 3B 33 30 17 54 1 73 2 .973 267.1 2.39 -1.3 .982
2021 Dallas - Pro SS 0 0 0 0 0 0 0 .000 0.0 0.00 0.0 .000
2022 San Antonio - AAA 1B 43 21 224 17 22 243 2 .992 223.2 9.70 +0.3 .986
2022 San Antonio - AAA 2B 0 0 0 0 0 0 0 .000 0.0 0.00 0.0 .000
2022 San Antonio - AAA 3B 5 0 1 4 0 5 0 1.000 12.0 3.75 +0.2 1.047
2022 San Antonio - AAA SS 0 0 0 0 0 0 0 .000 0.0 0.00 0.0 .000
2022 San Antonio - AAA LF 1 1 0 0 0 0 0 .000 9.0 0.00 -0.7 .000
2023 Dallas - Pro 1B 73 70 549 38 36 591 4 .993 612.1 8.63 +2.2 1.038
2023 Dallas - Pro SS 0 0 0 0 0 0 0 .000 0.0 0.00 0.0 .000
2025 Winnipeg - Semi 1B 11 11 93 3 4 97 1 .990 102.2 8.42 +0.0 1.023
2025 Winnipeg - Semi 3B 21 20 8 28 1 40 4 .900 169.2 1.91 -4.1 .868
2025 Winnipeg - Semi SS 1 1 1 2 0 3 0 1.000 9.0 3.00 +0.0 1.048
2026 Vacaville - Semi 1B 52 47 356 34 23 392 2 .995 427.1 8.21 +1.6 1.030
2026 Vacaville - Semi 3B 71 65 44 111 7 163 8 .951 599.2 2.33 -8.3 .901
2026 Vacaville - Semi SS 0 0 0 0 0 0 0 .000 0.0 0.00 0.0 .000
2026 Vacaville - Semi LF 1 0 1 0 0 1 0 1.000 6.0 1.50 +0.0 .999
TOTAL 1B 308 272 2294 170 170 2478 14 .994 2472.1 8.97 +6.9 1.029
TOTAL 2B 10 8 11 19 2 31 1 .968 79.0 3.42 -0.5 .925
TOTAL 3B 444 414 244 735 57 1015 36 .965 3638.1 2.42 -17.3 .963
TOTAL SS 11 8 14 19 3 36 3 .917 78.0 3.81 -1.6 .810
TOTAL LF 2 1 1 0 0 1 0 1.000 15.0 0.60 -0.7 .499
PLAYER HISTORY
01/01/2013 OSA scouting updated ratings (potential): Contact: 4 (6); Power: 4 (6); Eye: 4 (7).
10/24/2013 Drafted in the 2013 first-year player draft out of college (Azusa Pacific University; Azusa, CA) by the San Francisco Peanuts. (Round 1, Pick 5, 5th overall pick).
01/01/2014 OSA scouting updated ratings (potential): Contact: 4 (6); Power: 4 (6); Eye: 5 (8).
05/07/2014 Successfully completed training to improve his plate discipline at the San Francisco Peanuts development complex.
06/11/2014 Unsuccessfully completed training to improve his defense at third base at the San Francisco Peanuts development complex.
06/12/2014 Named the #3 prospect in the PBC
10/27/2014 Named the #4 prospect in the PBC
11/20/2014 Received a 1-year contract through automatic renewal worth a total of $100,000.
01/01/2015 OSA scouting updated ratings (potential): Contact: 5 (6); Power: 5 (7); Eye: 8 (8).
06/12/2015 Named the #15 prospect in the PBC
08/02/2015 Injured (sprained ankle),day-to-day for 1-2 weeks.
11/20/2015 Received a 1-year contract through automatic renewal worth a total of $100,000.
01/01/2016 OSA scouting updated ratings (potential): Contact: 5 (6); Power: 5 (7); Eye: 7 (7).
05/01/2016 Was traded by the San Francisco Peanuts to the El Paso Diablos, along with 2B Willie Rodriguez, 2B Phil Rasmussen, RP Zeke Smothers, and RP Jared Dickerson, in exchange for 2B Dewey Duggan, 2B Rob Rodriguez, 2B Steve Wells, and 3B Sam Abel.
10/24/2016 Wins the 2016 Pro Circuit Cup with the El Paso Diablos.
11/16/2016 Received a 1-year contract through automatic renewal worth a total of $100,000.
01/01/2017 OSA scouting updated ratings (potential): Contact: 5 (6); Power: 5 (6); Eye: 7 (7).
10/26/2017 Wins the 2017 Pro Circuit Cup with the El Paso Diablos.
11/18/2017 Received a 1-year contract through automatic renewal worth a total of $100,000.
01/01/2018 OSA scouting updated ratings (potential): Contact: 5 (5); Power: 5 (5); Eye: 7 (7).
01/01/2019 OSA scouting updated ratings (potential): Contact: 5 (5); Power: 5 (5); Eye: 7 (7).
05/01/2019 Was traded by the El Paso Diablos to the Dallas Texans, along with $1, in exchange for $1.
06/12/2019 Unsuccessfully completed training to improve his infield defense at the Dallas Texans development complex.
08/07/2019 Injured (sore back),day-to-day for 1 day.
11/19/2019 Received a 1-year contract through automatic renewal worth a total of $100,000.
01/01/2020 OSA scouting updated ratings (potential): Contact: 5 (5); Power: 4 (5); Eye: 7 (7).
01/21/2020 Unsuccessfully completed training to improve his infield defense at the Dallas Texans development complex.
01/01/2021 OSA scouting updated ratings (potential): Contact: 4 (4); Power: 4 (4); Eye: 7 (7).
11/17/2021 Received a 1-year contract through automatic renewal worth a total of $100,000.
01/01/2022 OSA scouting updated ratings (potential): Contact: 4 (4); Power: 4 (4); Eye: 7 (7).
01/01/2023 OSA scouting updated ratings (potential): Contact: 4 (4); Power: 4 (4); Eye: 7 (7).
06/20/2023 Goes 5-6 against the Las Vegas Aces, with 3 RBI and 2 R.
06/26/2023 Wins the PBC WC Player of the Week Award.
07/10/2023 Injured (bruised calf),day-to-day for 4 days.
11/21/2023 Became a free agent.
01/01/2024 OSA scouting updated ratings (potential): Contact: 4 (4); Power: 4 (4); Eye: 7 (7).
01/01/2025 OSA scouting updated ratings (potential): Contact: 4 (4); Power: 4 (4); Eye: 7 (7).
08/01/2025 Signed a 2-year contract worth a total of $29,200 with the Winnipeg Buffaloes organization.
08/25/2025 Injured (neck stiffness),day-to-day for 2 days.
09/18/2025 Released by the Winnipeg Buffaloes.
12/11/2025 Signed a 1-year contract worth a total of $3,300 with the Vacaville Steelheads organization.
01/01/2026 OSA scouting updated ratings (potential): Contact: 4 (4); Power: 4 (4); Eye: 8 (8).
10/13/2026 Signed a 2-year contract extension worth a total of $10,200 with the Vacaville Steelheads organization.
LEADERBOARD APPEARANCES
Year BB Rank
2026 82 1
Friday, May 29th , 2026 - OOTP Baseball 27.2 Build 60