LF Ja-wook Koo #5
Age: 33 | Bats: L | Throws: R | Morale: Normal
11/05/2026
 OA: 35 POT: 35
BNN Index | | SCORES | STANDINGS | STATS | TEAMS | PLAYERS | TRANSACTIONS | HISTORY
LF JA-WOOK KOO #5 - AGE: 33 - BATS: L - THROWS: R - MORALE: NORMAL
G AB H 2B 3B HR RBI BB K AVG OBP SLG SB WAR
140 510 142 22 5 17 67 49 130 .278 .349 .441 7 3.3
BATTING RATINGS (OSA)
Overall Pot. Overall Vs Left Vs Right Pot.  
Contact 45 40 45 45
Gap 50 50 50 50
Power 45 45 45 45
Eye 45 45 45 45
Avoid K's 50 45 50 50
FIELDING RATINGS
Catcher Infield Outfield
Range: - 25 45
Errors: - 35 55
Arm: 20 45 60
Turn DP: - 30 -
Ability: 20 - -
POSITION RATINGS
Pitcher: - Shortstop: -
Catcher: - Left Field: 50
1st Base: - Center Field: -
2nd Base: - Right Field: 45
3rd Base: -
       
RUN/BUNT
Running Speed: 45
Stealing Ability: 60
Baserunning Inst.: 65
Sacrifice Bunt: 45
Bunt for Hit: 30
   
GAME LOG, LAST 10 GAMES
Date Vs. Result AB R H BI HR BB K SB
09/18/2026 HH Win, 9-6 3 1 1 2 0 1 0 0
09/17/2026 HH Win, 10-3 2 0 0 0 0 2 1 0
09/16/2026 KT Win, 3-1 4 0 1 0 0 0 1 0
09/15/2026 KT Loss, 2-7 4 0 0 0 0 0 2 0
09/13/2026 NC Win, 5-3 4 0 0 0 0 0 1 0
09/12/2026 NC Loss, 2-8 3 0 1 0 0 1 0 0
09/11/2026 @ KIW Loss, 2-5 4 0 0 0 0 0 2 0
09/10/2026 @ KIW Loss, 1-2 3 0 0 0 0 1 1 0
09/09/2026 @ LOT Loss, 2-3 4 1 2 0 0 0 1 0
09/08/2026 @ LOT Loss, 7-10 5 0 2 2 0 0 2 0
PERSONALITY
He has an engine that never quits and is a thinking man's ballplayer. He's highly-regarded throughout the league.
High: Adaptability, Greed, Work Ethic, Intelligence
Birthday:02/12/1993
Born in:Daegu, DAE
Nationality:South Korean
Height:6' 2"
Weight:175 lbs
Local Popularity:Fair
National Pop.:Unknown
STATUS
Contract:None, Free Agent
Salary:-
Signed Through:-
Major Service:12 Years, None
Service This Yr:176 Days
40-Man Service:6 Years, None
Pro Service:14 Years
Arbitration Eligibility:Not eligible, free agent after contract expires!
Option Years:3 option years left
Contract Extension: -
Drafted:-
KOREAN BASEBALL ORGANIZATION 2026 BATTING STATS
Batting G AB H 2B 3B HR RBI R BB K AVG OBP SLG OPS WOBA ISO wRC+
Overall 140 510 142 22 5 17 67 66 49 130 .278 .349 .441 .790 .366 .163 128
Batting GS PA HP IW CI GDP SH SF TB EBH SB CS SB% RC RC/27 WAR  
Overall 136 571 8 1 0 10 1 3 225 44 7 3 70.0 79.9 5.60 3.3  
Batting   AB H 2B 3B HR RBI R BB K SF SH HP AVG OBP SLG OPS
Versus Left   101 30 3 1 4 15 12 8 29 2 0 1 .297 .348 .465 .814
Versus Right   409 112 19 4 13 52 54 41 101 1 1 7 .274 .349 .435 .785
Batting   AB H 2B 3B HR RBI R BB K SF SH HP AVG OBP SLG OPS
March   10 2 1 0 0 1 1 2 2 1 0 0 .200 .308 .300 .608
April   95 26 6 0 1 11 11 6 23 0 0 0 .274 .317 .368 .685
May   88 25 4 1 3 10 16 11 21 0 0 2 .284 .376 .455 .831
June   86 23 0 3 4 12 10 8 21 0 1 3 .267 .351 .477 .827
July   87 23 6 0 4 12 7 4 25 1 0 0 .264 .293 .471 .765
August   90 29 2 1 4 13 15 12 21 1 0 2 .322 .410 .500 .910
September   54 14 3 0 1 8 6 6 17 0 0 1 .259 .344 .370 .715
Spring Training   19 2 0 0 0 1 3 5 7 0 0 1 .105 .320 .105 .425
Last Year   544 137 22 3 26 68 83 41 140 3 1 6 .252 .310 .447 .756
2 Years Ago   536 147 21 2 21 77 86 63 130 3 0 13 .274 .363 .438 .801
Career   5910 1743 316 62 209 904 1008 600 1321 48 6 98 .295 .367 .475 .842
Home   262 76 10 0 8 33 32 28 57 0 0 5 .290 .369 .420 .789
Road   248 66 12 5 9 34 34 21 73 3 1 3 .266 .327 .464 .791
Grass   425 127 20 5 12 56 54 43 101 1 1 7 .299 .372 .454 .826
Turf   85 15 2 0 5 11 12 6 29 2 0 1 .176 .234 .376 .611
Day   48 11 4 0 0 6 8 6 14 1 0 2 .229 .333 .312 .646
Night   462 131 18 5 17 61 58 43 116 2 1 6 .284 .351 .455 .805
As Starter   503 139 22 5 17 67 65 49 128 3 1 8 .276 .348 .441 .789
As Reliever / Substitution   7 3 0 0 0 0 1 0 2 0 0 0 .429 .429 .429 .857
Pinch Hitting   3 1 0 0 0 0 0 0 1 0 0 0 .333 .333 .333 .667
Close/Late   117 31 5 0 4 11 16 12 38 0 1 0 .265 .333 .410 .744
Inning 1-3   173 56 12 2 7 29 27 13 40 0 0 2 .324 .378 .538 .915
Inning 4-6   174 45 5 3 6 24 22 21 45 1 0 6 .259 .356 .425 .782
Inning 7-9   156 40 5 0 4 14 15 13 41 2 1 0 .256 .310 .365 .675
Extra Innings   7 1 0 0 0 0 2 2 4 0 0 0 .143 .333 .143 .476
0 Outs   171 46 3 1 6 14 24 12 46 0 1 4 .269 .332 .404 .735
1 Outs   179 57 12 3 5 27 25 21 44 3 0 1 .318 .387 .503 .890
2 Outs   160 39 7 1 6 26 17 16 40 0 0 3 .244 .324 .412 .737
Scoring Position   121 34 8 3 2 46 13 16 30 3 1 1 .281 .362 .446 .808
Bases Empty   301 83 11 0 11 11 41 30 81 0 0 3 .276 .347 .422 .769
Runner on 1st   88 25 3 2 4 10 12 3 19 0 0 4 .284 .337 .500 .837
Runner on 2nd   37 10 0 2 1 8 4 3 4 0 1 1 .270 .341 .459 .801
Runner on 3rd   10 0 0 0 0 1 0 1 5 0 0 0 .000 .091 .000 .091
Runner on 1st & 2nd   39 14 5 1 0 13 4 3 10 0 0 0 .359 .405 .538 .943
Runner on 1st & 3rd   18 4 1 0 0 7 2 3 6 1 0 0 .222 .318 .278 .596
Runner on 2nd & 3rd   8 3 1 0 0 6 0 4 3 1 0 0 .375 .538 .500 1.038
Bases Loaded   9 3 1 0 1 11 3 2 2 1 0 0 .333 .417 .778 1.194
Two Strikes   265 52 8 2 3 18 22 18 130 1 0 4 .196 .257 .275 .532
First Pitch   61 22 5 0 3 9 8 1 0 1 1 3 .361 .394 .590 .984
Count 0-1   36 13 3 0 2 9 6 0 0 0 0 1 .361 .378 .611 .989
Count 0-2   49 6 0 0 0 2 2 0 25 0 0 1 .122 .140 .122 .262
Count 1-0   57 23 4 1 3 11 9 0 0 0 0 0 .404 .404 .667 1.070
Count 1-1   40 12 1 1 3 9 6 0 0 1 0 0 .300 .293 .600 .893
Count 1-2   84 15 1 1 1 6 6 0 42 0 0 3 .179 .207 .250 .457
Count 2-0   12 5 0 0 0 1 1 0 0 0 0 0 .417 .417 .417 .833
Count 2-1   26 9 0 1 0 2 1 0 0 0 0 0 .346 .346 .423 .769
Count 2-2   77 15 5 1 1 4 3 0 40 0 0 0 .195 .195 .325 .519
Count 3-0   0 0 0 0 0 0 4 12 0 0 0 0 .000 1.000 .000 1.000
Count 3-1   13 6 1 0 3 8 9 18 0 0 0 0 .462 .774 1.231 2.005
Full Count   55 16 2 0 1 6 11 18 23 1 0 0 .291 .459 .382 .841
Behind in Count   169 34 4 1 3 17 14 0 67 0 0 5 .201 .224 .290 .514
Ahead in Count   108 43 5 2 6 22 24 30 0 0 0 0 .398 .529 .648 1.177
Batting 2nd   17 7 1 0 2 3 3 1 4 0 0 0 .412 .444 .824 1.268
Batting 3rd   84 25 1 1 3 12 12 13 22 2 0 2 .298 .396 .440 .837
Batting 4th   11 4 0 0 0 1 1 2 4 0 0 0 .364 .462 .364 .825
Batting 5th   172 42 11 0 5 23 15 10 47 0 0 2 .244 .293 .395 .689
Batting 6th   171 46 7 1 7 21 28 22 40 0 1 2 .269 .359 .444 .803
Batting 7th   54 17 2 3 0 7 7 1 13 1 0 2 .315 .345 .463 .808
Batting 8th   1 1 0 0 0 0 0 0 0 0 0 0 1.000 1.000 1.000 2.000
Low Leverage   211 61 10 2 6 16 24 20 52 1 1 3 .289 .357 .441 .798
Medium Leverage   203 51 4 2 8 25 30 19 48 2 0 4 .251 .325 .409 .733
High Leverage   91 28 8 1 3 26 12 10 30 0 0 1 .308 .382 .516 .899
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
2015 Samsung - KBO 22 116 410 143 33 5 11 57 97 45 6 4 79 17 7 .349 .417 .534 .951 175 180 6.2
2016 Samsung - KBO 23 108 428 147 19 13 14 77 105 55 5 5 68 10 5 .343 .420 .547 .967 179 181 6.4
2017 Samsung - KBO 24 144 564 175 39 10 21 107 108 63 10 10 138 10 4 .310 .383 .527 .910 162 164 7.0
2018 Samsung - KBO 25 116 478 159 26 5 20 84 100 43 5 2 110 10 0 .333 .392 .533 .926 167 169 5.9
2019 Samsung - KBO 26 122 475 127 27 6 15 71 66 38 7 6 88 11 3 .267 .327 .444 .771 122 120 3.2
2020 Samsung - KBO 27 118 446 137 27 2 15 78 70 51 8 4 91 19 5 .307 .385 .478 .863 149 150 5.0
2021 Samsung - KBO 28 122 455 127 21 3 14 58 80 36 11 0 89 12 6 .279 .347 .431 .777 107 109 1.9
2022 Samsung - KBO 29 142 525 161 30 6 18 83 73 56 8 3 120 13 1 .307 .380 .490 .870 131 133 3.0
2023 Samsung - KBO 30 141 539 141 29 2 17 77 74 60 11 5 138 13 5 .262 .345 .417 .762 103 105 1.2
2024 Samsung - KBO 31 144 536 147 21 2 21 77 86 63 13 3 130 10 1 .274 .363 .438 .801 114 117 2.5
2025 Samsung - KBO 32 140 544 137 22 3 26 68 83 41 6 3 140 6 6 .252 .310 .447 .756 100 97 1.4
2026 Samsung - KBO 33 140 510 142 22 5 17 67 66 49 8 3 130 7 3 .278 .349 .441 .790 128 128 3.3
Total KBO 1553 5910 1743 316 62 209 904 1008 600 98 48 1321 138 46 .295 .367 .475 .842 135 136 47.0
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
2013 Gyeongsan - R 20 88 312 94 20 1 6 45 55 46 2 0 30 29 0 .301 .394 .429 .824 130 131 3.0
2014 Gyeongsan - R 21 75 241 86 14 6 3 48 48 41 3 0 29 27 0 .357 .456 .502 .958 168 167 3.7
2015 Gyeongsan - R 22 1 1 1 0 0 0 0 2 3 0 0 0 0 0 1.000 1.000 1.000 2.000 459 378 0.1
2016 Gyeongsan - R 23 4 13 3 1 0 0 1 0 0 0 0 1 0 0 .231 .231 .308 .538 50 43 -0.0
2018 Gyeongsan - R 25 6 15 3 1 0 1 2 3 2 0 0 4 0 0 .200 .294 .467 .761 112 107 0.1
2020 Gyeongsan - R 27 4 14 4 0 2 0 1 2 0 0 0 1 0 0 .286 .286 .571 .857 138 126 0.1
Total KFL 178 596 191 36 9 10 97 110 92 5 0 65 56 0 .320 .416 .461 .877 146 145
CAREER FIELDING STATS
Year/Team/League POS G GS PO A DP TC E PCT INN RNG ZR EFF PB RSTA RTO RTO%
2020 Samsung - INT LF 55 0 114 5 0 120 1 .992 0.0 0.00 0.0 .000
2020 Samsung - INT RF 48 0 91 2 0 94 1 .989 0.0 0.00 0.0 .000
2021 Samsung - INT LF 1 0 0 0 0 0 0 .000 3.0 0.00 0.0 .000
2021 Samsung - INT RF 116 115 216 10 1 232 6 .974 994.0 2.05 +2.6 1.023
2022 Samsung - INT LF 99 98 191 2 1 201 8 .960 840.0 2.07 -6.5 .967
2022 Samsung - INT RF 44 38 67 4 0 75 4 .947 346.0 1.85 -2.4 .991
2023 Samsung - INT LF 21 21 43 1 0 44 0 1.000 184.0 2.15 +0.2 .994
2024 Samsung - INT LF 16 16 21 1 0 22 0 1.000 125.2 1.58 -1.0 .915
2024 Samsung - INT RF 3 1 4 0 0 4 0 1.000 13.1 2.70 +0.4 1.298
2025 Samsung - INT LF 136 134 247 10 1 258 1 .996 1174.0 1.97 +2.4 1.002
2025 Samsung - INT RF 1 0 0 0 0 0 0 .000 5.0 0.00 -0.0 .000
2026 Samsung - INT LF 130 130 241 9 3 251 1 .996 1141.1 1.97 -4.9 .988
2026 Samsung - INT RF 7 6 17 0 0 17 0 1.000 60.0 2.55 +0.6 1.006
TOTAL LF 458 399 857 28 5 896 11 .988 3468.0 2.30 -9.8 .986
TOTAL RF 219 160 395 16 1 422 11 .974 1418.1 2.61 +1.2 1.018
PLAYER HISTORY
08/26/2011 Drafted by the Samsung Lions in the 2nd round of the 2012 KBO Draft from Daegu HS.
07/21/2019 Selected to the 2019 KBO All-Star Game.
04/13/2021 Injured (knee soreness),day-to-day for one week.
04/20/2021 Injured (dead arm),out for 5 days.
07/05/2021 Wins the KBO Player of the Week Award.
09/23/2021 Injured (hamstring strain),out for 5 weeks.
11/05/2021 Signed a 1-year contract extension worth a total of $378,000 with the Samsung Lions organization.
01/01/2022 OSA scouting updated ratings (potential): Contact: 45 (50); Power: 50 (50); Eye: 45 (50).
08/02/2022 Signed a 2-year contract extension worth a total of $1,420,000 with the Samsung Lions organization.
10/23/2022 Wins the 2022 KBO Platinum Stick Award at LF.
01/01/2023 OSA scouting updated ratings (potential): Contact: 45 (45); Power: 50 (50); Eye: 50 (50).
06/12/2023 Wins the KBO Player of the Week Award.
01/01/2024 OSA scouting updated ratings (potential): Contact: 45 (45); Power: 50 (50); Eye: 45 (45).
06/08/2024 Injured (knee soreness),day-to-day for one week.
06/09/2024 Injured (knee soreness),day-to-day for one week.
08/23/2024 Signed a 2-year contract extension worth a total of $1,500,000 with the Samsung Lions organization.
01/01/2025 OSA scouting updated ratings (potential): Contact: 45 (45); Power: 50 (50); Eye: 45 (45).
03/16/2025 Injured (knee soreness),day-to-day for one week.
04/17/2025 Injured (knee soreness),day-to-day for 1 day.
05/18/2025 Injured (quadriceps soreness),day-to-day for 1 day.
06/21/2025 Injured (knee soreness),day-to-day for 1 day.
01/01/2026 OSA scouting updated ratings (potential): Contact: 45 (45); Power: 50 (50); Eye: 45 (45).
07/20/2026 Wins the KBO Player of the Week Award.
08/23/2026 Scores his 1000th career Korean Baseball Organization run!
11/04/2026 Became a free agent.
LEADERBOARD APPEARANCES
Year GS Rank
2024 143 3
Year TB Rank
2022 257 10
2026 225 9
Year 2B Rank
2022 30 10
Year 3B Rank
2022 6 3
2026 5 4
Year HR Rank
2025 26 8
Year R Rank
2024 86 10
Year HP Rank
2024 13 3
Year EBH Rank
2022 54 9
Year SLG Rank
2022 .490 8
2026 .441 8
Year RC Rank
2022 102.78 8
2024 93.03 9
Year RC/27 Rank
2022 7.38 7
Year ISO Rank
2025 .195 10
2026 .163 9
Year wOBA Rank
2022 .389 8
Year OPS Rank
2022 .870 8
2026 .790 10
Tuesday, October 4th , 2022 - OOTP Baseball 23.7 Build 88