SS Yoneo 'Big Thunder' Yamamoto #5
Age: 24 | Bats: R | Throws: R | Morale: Normal
08/08/2026
OA: 40 POT: 40
SS YONEO 'BIG THUNDER' YAMAMOTO #5 - AGE: 24 - BATS: R - THROWS: R - MORALE: NORMAL
G AB H 2B 3B HR RBI BB K AVG OBP SLG SB WAR
87 339 78 14 1 13 48 15 92 .230 .288 .392 0 0.4
BATTING RATINGS (OSA)
Overall Pot. Overall Vs Left Vs Right Pot.  
Contact 45 45 45 45
Gap 40 45 40 40
Power 45 50 45 45
Eye 35 35 35 35
Avoid K's 40 40 40 50
FIELDING RATINGS
Catcher Infield Outfield
Range: - 70 55
Errors: - 65 60
Arm: 20 50 45
Turn DP: - 75 -
Framing: 20 - -
POSITION RATINGS
Pitcher: - Shortstop: 65
Catcher: - Left Field: -
1st Base: - Center Field: -
2nd Base: 80 Right Field: -
3rd Base: -
       
RUN/BUNT
Running Speed: 35
Stealing Aggressiveness: 75
Stealing Ability: 20
Baserunning Inst.: 20
Sacrifice Bunt: 45
Bunt for Hit: 25
   
GAME LOG, LAST 10 GAMES
Date Vs. Result AB R H BI HR BB K SB
08/07/2026 LW Win, 3-1 3 1 0 0 0 0 0 0
08/06/2026 LW Win, 8-7 3 1 2 5 1 0 0 0
08/05/2026 LW Win, 7-6 4 1 1 0 0 2 1 0
08/04/2026 @ BAN Win, 6-2 2 1 0 0 0 2 1 0
08/03/2026 @ BAN Win, 10-5 4 0 1 1 0 0 0 0
08/02/2026 @ BAN Loss, 7-8 4 1 1 0 0 0 0 0
08/01/2026 MX Win, 6-3 4 0 2 0 0 0 1 0
07/31/2026 MX Loss, 3-5 5 0 1 1 0 0 1 0
07/30/2026 MX Loss, 3-7 4 0 0 0 0 0 2 0
07/27/2026 @ LE Loss, 4-6 5 1 2 1 0 0 1 0
PERSONALITY
Yamamoto never gives less than 100 percent.
Birthday:03/20/2002
Born in:Nonoichi, ISH
Nationality:Japanese
Height:6' 1"
Weight:170 lbs
Local Popularity:Insignificant
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:7 Years
Arbitration Eligibility:Not yet eligible
Option Years:3 option years left
Contract Extension: -
Drafted:-
ABA DOUBLE A 2026 BATTING STATS
Batting G AB H 2B 3B HR RBI R BB K AVG OBP SLG OPS WOBA ISO wRC+
Overall 16 60 16 2 0 4 5 5 4 17 .267 .323 .500 .823 .361 .233 124
Batting GS PA HP IW CI GDP SH SF TB EBH SB CS SB% RC RC/27 WAR  
Overall 16 65 1 0 0 2 0 0 30 6 0 0 0.0 9.1 5.37 .5  
Batting   AB H 2B 3B HR RBI R BB K SF SH HP AVG OBP SLG OPS
Versus Left   22 9 0 0 3 3 3 1 4 0 0 0 .409 .435 .818 1.253
Versus Right   38 7 2 0 1 2 2 3 13 0 0 1 .184 .262 .316 .578
Batting   AB H 2B 3B HR RBI R BB K SF SH HP AVG OBP SLG OPS
May   60 16 2 0 4 5 5 4 17 0 0 1 .267 .323 .500 .823
2 Years Ago   208 57 7 1 2 21 20 18 51 3 6 5 .274 .342 .346 .688
Career   268 73 9 1 6 26 25 22 68 3 6 6 .272 .338 .381 .718
Home   19 4 1 0 1 1 2 1 4 0 0 0 .211 .250 .421 .671
Road   41 12 1 0 3 4 3 3 13 0 0 1 .293 .356 .537 .892
Grass   60 16 2 0 4 5 5 4 17 0 0 1 .267 .323 .500 .823
Day   25 4 0 0 1 1 1 2 7 0 0 0 .160 .222 .280 .502
Night   35 12 2 0 3 4 4 2 10 0 0 1 .343 .395 .657 1.052
As Starter   60 16 2 0 4 5 5 4 17 0 0 1 .267 .323 .500 .823
ABA CLASS A 2026 BATTING STATS
Batting G AB H 2B 3B HR RBI R BB K AVG OBP SLG OPS WOBA ISO wRC+
Overall 87 339 78 14 1 13 48 41 15 92 .230 .288 .392 .681 .298 .162 63
Batting GS PA HP IW CI GDP SH SF TB EBH SB CS SB% RC RC/27 WAR  
Overall 83 371 14 1 0 11 0 3 133 28 0 0 0.0 36.7 3.60 .4  
Batting   AB H 2B 3B HR RBI R BB K SF SH HP AVG OBP SLG OPS
Versus Left   78 18 1 1 2 17 8 5 22 1 0 1 .231 .282 .346 .629
Versus Right   261 60 13 0 11 31 33 10 70 2 0 13 .230 .290 .406 .696
Batting   AB H 2B 3B HR RBI R BB K SF SH HP AVG OBP SLG OPS
This Week   16 4 0 0 1 6 4 4 2 2 0 2 .250 .417 .438 .854
Last Week   22 6 3 0 0 2 2 0 5 0 0 1 .273 .304 .409 .713
April   79 16 1 0 2 8 9 3 27 1 0 3 .203 .256 .291 .547
May   34 8 0 0 1 2 4 3 13 0 0 1 .235 .316 .324 .639
June   95 19 3 0 4 13 11 3 21 0 0 4 .200 .255 .358 .613
July   107 28 8 1 5 19 12 2 28 0 0 3 .262 .295 .495 .790
August   24 7 2 0 1 6 5 4 3 2 0 3 .292 .424 .500 .924
Last Year   448 132 24 0 21 80 61 23 118 2 0 16 .295 .350 .489 .839
2 Years Ago   237 75 15 1 6 48 29 20 52 2 0 7 .316 .383 .464 .848
Career   1080 292 53 2 41 179 134 63 284 7 0 39 .270 .331 .437 .768
Home   156 38 7 1 6 23 21 9 37 1 0 6 .244 .308 .417 .725
Road   183 40 7 0 7 25 20 6 55 2 0 8 .219 .271 .372 .643
Grass   331 78 14 1 13 48 40 15 89 3 0 14 .236 .295 .402 .697
Turf   8 0 0 0 0 0 1 0 3 0 0 0 .000 .000 .000 .000
Day   98 21 2 1 3 14 11 4 28 1 0 2 .214 .257 .347 .604
Night   241 57 12 0 10 34 30 11 64 2 0 12 .237 .301 .411 .712
As Starter   338 78 14 1 13 48 41 15 92 3 0 13 .231 .287 .393 .681
As Reliever / Substitution   1 0 0 0 0 0 0 0 0 0 0 1 .000 .500 .000 .500
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
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
2020 (OAK) Apodaca - DL 18 35 105 14 2 0 3 9 5 4 1 0 37 0 0 .133 .173 .238 .411 6 -11 -1.1
2020 Terra Linda - R 18 108 364 59 4 0 15 30 40 24 14 1 150 0 2 .162 .241 .297 .537 33 23 -2.5
2021 Terra Linda - R 19 79 205 33 1 0 8 19 16 15 9 1 75 1 0 .161 .248 .283 .531 27 14 -1.7
2022 Terra Linda - R 20 19 34 7 1 0 2 3 6 7 3 0 8 0 0 .206 .386 .412 .798 94 104 0.1
2022 Columbus - A 20 24 53 6 0 0 1 3 3 5 2 0 21 0 0 .113 .217 .170 .386 3 -4 -0.5
2022 San Bernardino - R 20 37 113 31 7 0 9 19 19 8 1 1 32 0 0 .274 .325 .575 .900 98 95 0.3
2023 San Bernardino - R 21 131 412 96 10 0 29 61 60 38 21 2 98 0 0 .233 .328 .468 .796 78 77 -0.4
2023 Columbus - A 21 1 3 1 0 0 0 0 0 0 0 0 1 0 0 .333 .333 .333 .667 73 69 -0.0
2024 Columbus - A 22 66 237 75 15 1 6 48 29 20 7 2 52 0 0 .316 .383 .464 .848 103 100 0.4
2024 Boise - AA 22 64 208 57 7 1 2 21 20 18 5 3 51 1 2 .274 .342 .346 .688 64 66 -0.7
2025 Columbus - A 23 125 448 132 24 0 21 80 61 23 16 2 118 0 0 .295 .350 .489 .839 110 108 1.7
2026 Columbus - A 24 87 339 78 14 1 13 48 41 15 14 3 92 0 0 .230 .288 .392 .681 69 63 0.4
2026 Boise - AA 24 16 60 16 2 0 4 5 5 4 1 0 17 0 0 .267 .323 .500 .823 122 124 0.5
Total AA 80 268 73 9 1 6 26 25 22 6 3 68 1 2 .272 .338 .381 .718 76 79
Total A 303 1080 292 53 2 41 179 134 63 39 7 284 0 0 .270 .331 .437 .768 90 86
Total AR 374 1128 226 23 0 63 132 141 92 48 5 363 1 2 .200 .288 .388 .676 57 51
CAREER FIELDING STATS
Year/Team/League POS G GS PO A DP TC E PCT INN RNG ZR EFF PB RSTA RTO RTO%
2026 Boise - AA 2B 5 5 10 19 5 29 0 1.000 43.0 6.07 +1.4 1.093
2026 Columbus - A 2B 78 75 174 197 46 374 3 .992 668.0 5.00 +10.1 1.136
2026 Boise - AA SS 11 11 18 37 13 57 2 .965 96.0 5.16 -0.2 .979
2026 Columbus - A SS 17 8 16 18 5 35 1 .971 84.0 3.64 -1.0 .899
TOTAL 2B 83 80 184 216 51 403 3 .993 711.0 5.06 +11.4 1.132
TOTAL SS 28 19 34 55 18 92 3 .967 180.0 4.45 -1.3 .952
PLAYER HISTORY
12/30/2018 Signed a minor league contract out of Japan with the Oakland Invaders organization.
01/01/2019 OSA scouting updated ratings (potential): Contact: 20 (70); Power: 25 (65); Eye: 20 (30).
03/28/2019 Named the #4 prospect in the ABA
01/01/2020 OSA scouting updated ratings (potential): Contact: 20 (70); Power: 25 (65); Eye: 20 (30).
04/02/2020 Named the #3 prospect in the ABA
07/03/2020 Named the #4 prospect in the ABA
07/26/2020 Was selected to the 2020 American Baseball Association All-Star Futures Game.
11/07/2020 Named the #51 prospect in the ABA
12/15/2020 Named to the 2020 Sun Coast Baseball League for the (OAK) Apodaca Gangsters.
01/01/2021 OSA scouting updated ratings (potential): Contact: 20 (50); Power: 35 (60); Eye: 30 (45).
02/25/2021 Outstandingly completed training to improve his two-strike approach at the Oakland Invaders development complex.
04/01/2021 Successfully completed training to improve his baserunning fundamentals at the Oakland Invaders development complex.
01/01/2022 OSA scouting updated ratings (potential): Contact: 30 (50); Power: 40 (60); Eye: 30 (45).
03/01/2022 Successfully completed training to generate more batspeed and homerun power at the Oakland Invaders development complex.
06/16/2022 Released by the Oakland organization.
06/30/2022 Signed a minor league contract with the Philadelphia Marauders organization.
01/01/2023 OSA scouting updated ratings (potential): Contact: 35 (45); Power: 45 (60); Eye: 30 (40).
10/13/2023 Wins the 2023 AR SC Great Glove Award at 2B.
01/01/2024 OSA scouting updated ratings (potential): Contact: 40 (50); Power: 40 (45); Eye: 30 (40).
05/08/2024 Goes 5-7 against the Atlanta Aggies, with 1 HR, 5 RBI and 2 R.
01/01/2025 OSA scouting updated ratings (potential): Contact: 45 (50); Power: 40 (45); Eye: 35 (40).
11/07/2025 Signed a 1-year minor league contract extension with the Philadelphia Marauders organization.
01/01/2026 OSA scouting updated ratings (potential): Contact: 45 (45); Power: 45 (45); Eye: 35 (40).
Thursday, May 28th , 2026 - OOTP Baseball 26.8 Build 82