KANG Seongseok · SEOUL OPEN

242rank
+18.5Butler · 150 bds
+0.12per board
±4.5swing
-0.17vs par /bd · #352/567
+0.04adjusted /bd
Butler per round: -3.7 23.2 18.5 4.7 -4.9 -8.2 -13.9 -16.5 -13.9 17.2 36.6 -2.7 -3 1.7 -16.6by round

vs par split: bidding -0.21 · play +0.04

Strength of schedule: opponents averaged -0.09/bd (an easy draw) → opponent-adjusted +0.04/bd

Card play — on target: opening leads 77.5% #360 of 567 · declarer play 86.8% #66 of 567 · defence 76.6% #494 of 567

Card play by contract type — on target
vs NTvs a suit
Opening leads90.9% (11)72.4% (29)
Declarer play85.7% (14)87.5% (24)
Defence69.6% (23)79.6% (54)

Opening leads by suit led: ♠ 57.1% (7) · ♥ 90.9% (11) · ♦ 72.7% (11) · ♣ 81.8% (11)

vs par by strain: NT -0.13 (47) · a suit -0.19 (103)

vs par by level: part-score -0.05 (62) · game -0.11 (79) · slam -1.56 (9)

By role: declaring +0.17/bd (-2.04 vs par · 73) · defending +0.08/bd (+1.60 vs par · 77)

By vulnerability: vulnerable -0.33/bd (-0.31 vs par · 75) · not vulnerable +0.58/bd (-0.04 vs par · 75)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1S.LeeJ.Ge – H.LiuClosed10-3.7-0.37-0.90
Round 2S.LeeZ.Ba – L.TianClosed10+23.2+2.32+1.20
Round 3S.LeeP.Sinha – B.NaidooOpen10+18.5+1.85+3.00
Round 4S.LeeC.Mcavoy – J.McavoyOpen10+4.7+0.47+1.20
Round 5S.LeeM.Yu – L.LiClosed10-4.9-0.49-1.20
Round 6S.LeeS.Caiti – G.MattioliClosed10-8.2-0.82+0.40
Round 7S.LeeJ.Dong – Z.PingOpen10-13.9-1.39+1.50
Round 8S.LeeF.Mcquaker – E.McgowanOpen10-16.5-1.65-2.00
Round 9S.LeeJ.Zhou – J.HouOpen10-13.9-1.39-4.50
Round 10S.LeeJ.Long – Q.JiangOpen10+17.2+1.72-0.40
Round 11S.LeeY.Hu – H.ZhangClosed10+36.6+3.66+3.40
Round 12S.LeeJ.Wei – G.ZhangOpen10-2.7-0.27-0.90
Round 13S.LeeM.Lair – M.RosenbergOpen10-3.0-0.30-2.30
Round 14S.LeeJ.Peng – K.WangClosed10+1.7+0.17-1.40
Round 15S.LeeT.Gao – J.YuanClosed10-16.6-1.66+0.30

Every board — best Butler first↑ top

vs par = IMPs this pair scored above (+) or below (−) the board’s double-dummy par — what bidding and play (theirs and the opponents’) added or gave away against perfect play.

ButlerRoundOpponentsBdContractLeadResvs par
+11.7Round 2NEIMENGGU174♥x♠K-4+9
+10.2Round 3INDIA TSANGPO306♥♠A-1+11
+9.9Round 4WE THE NORTH24♣♦Q-8+12
+8.6Round 13USA 2 Seniors33NT♦3-2+13
+8.5Round 11HONG PRAISE TEAM194♠♣J-1+12
+8.4Round 2NEIMENGGU153♠♦A=+8
+7.6Round 10BEIJINGXUGUANG54♥x♣3-2+5
+7.5Round 3INDIA TSANGPO214NT♠K-1+11
+7.3Round 11HONG PRAISE TEAM164♥♠6=+7
+7.2Round 2NEIMENGGU196♦♣3-2+8
+7.1Round 11HONG PRAISE TEAM114♥♣A-3+6
+6.4Round 9CHINA XHJT223NT♠6=+7
+6.1Round 1JSQX NJZS BRIDGECLUB92♠♥6-3+3
+6.1Round 5JXBA174♠♦5=+7
+6.0Round 10BEIJINGXUGUANG33NT♥K=+0
+5.6Round 14HENGZHOU FINANCE154♠♥4-1-2
+5.2Round 1JSQX NJZS BRIDGECLUB14♠♣3=+0
+5.2Round 6ITALY Seniors244♥♣6-3+6
+5.2Round 11HONG PRAISE TEAM145♣♣9=+7
+5.2Round 15GUIZHOU ZHENGYE273♠♣K=+6
+5.1Round 11HONG PRAISE TEAM154♠♦K=-1
+5.0Round 3INDIA TSANGPO295♥♠K-1+1
+4.9Round 7CHINA JUNIORS72♦♥6-1+5
+4.7Round 1JSQX NJZS BRIDGECLUB44♥♦9-1+6
+4.6Round 2NEIMENGGU163NT♣6+1+7
+4.6Round 11HONG PRAISE TEAM133NT♠4=+10
+4.5Round 13USA 2 Seniors86♦♣J=+0
+4.3Round 5JXBA152♠♥Q=+0
+3.9Round 12SANMING EDUCATION226♥♦J=+0
+3.6Round 5JXBA122♣x♠2=+2
+3.6Round 8SCOTMARK124♥♦K+2+11
+3.6Round 13USA 2 Seniors22NT♣4+2-8
+3.5Round 9CHINA XHJT243♠♥10-2+0
+3.5Round 14HENGZHOU FINANCE184♥♦4+1+4
+3.4Round 8SCOTMARK201NT♥2=-1
+3.4Round 12SANMING EDUCATION256♥♥4+1-11
+3.2Round 4WE THE NORTH43♦♥7+1+11
+3.1Round 1JSQX NJZS BRIDGECLUB84♠♥4-1+10
+3.1Round 10BEIJINGXUGUANG73NT♠2=+0
+2.8Round 9CHINA XHJT272♥♠2-1+9
+2.8Round 15GUIZHOU ZHENGYE303NT♦4-1+5
+2.7Round 3INDIA TSANGPO274♥♠2=+3
+2.7Round 7CHINA JUNIORS23♣♠Q=+1
+2.4Round 6ITALY Seniors262♥♣4-2+2
+2.4Round 10BEIJINGXUGUANG64♠♣10-1+6
+2.4Round 14HENGZHOU FINANCE203♥♦A-1-1
+2.3Round 8SCOTMARK133♠♥6-2+2
+2.1Round 1JSQX NJZS BRIDGECLUB62♥♣A+1-7
+2.1Round 10BEIJINGXUGUANG11NT♦10-1-1
+2.1Round 10BEIJINGXUGUANG91NT♥A+1+5
+2.0Round 10BEIJINGXUGUANG44♦♠2=+0
+1.9Round 14HENGZHOU FINANCE113NT♣6=-1
+1.8Round 15GUIZHOU ZHENGYE221NT♣8+3+9
+1.7Round 3INDIA TSANGPO233♦♥6-1+5
+1.7Round 6ITALY Seniors213NT♥J-4+7
+1.7Round 12SANMING EDUCATION243NT♥7-5-5
+1.6Round 4WE THE NORTH101NT♠5+1+1
+1.6Round 6ITALY Seniors281NT♦4+2+0
+1.5Round 8SCOTMARK153NT♥5+2+1
+1.4Round 14HENGZHOU FINANCE132♠♦6=+0
+1.4Round 15GUIZHOU ZHENGYE253NT♣4+2+1
+1.3Round 7CHINA JUNIORS83NT♦6=+11
+1.2Round 2NEIMENGGU182♥♠A-1+4
+1.2Round 7CHINA JUNIORS31NT♥9+1+0
+1.1Round 3INDIA TSANGPO264♥♦8+2+13
+1.0Round 12SANMING EDUCATION211NT♣K-1+0
+0.9Round 6ITALY Seniors222♥♦Q+1+0
+0.9Round 13USA 2 Seniors93NT♥5+2+2
+0.8Round 15GUIZHOU ZHENGYE232NT♥6-1+0
+0.5Round 9CHINA XHJT263NT♥9+2-12
+0.5Round 11HONG PRAISE TEAM173♥♠2-2-7
+0.4Round 2NEIMENGGU143♥♦A-2+5
+0.2Round 11HONG PRAISE TEAM183♥♣J-1+0
-0.0Round 8SCOTMARK114♠♥K+1+0
+0.0Round 8SCOTMARK143NT♠5+2+0
-0.0Round 10BEIJINGXUGUANG86NT♣6=-11
-0.1Round 3INDIA TSANGPO223NT♥10-1-5
-0.2Round 5JXBA111NT♦6+2+0
-0.2Round 6ITALY Seniors302♥♣K+2+6
-0.3Round 2NEIMENGGU123♥♦5-1-10
-0.3Round 4WE THE NORTH14♥♠K+1+0
-0.3Round 12SANMING EDUCATION232♥♥5+1+0
-0.4Round 4WE THE NORTH54♠♥A+1-1
-0.4Round 5JXBA202♠♣2+1+0
-0.5Round 11HONG PRAISE TEAM201NT♠2-1+0
-0.5Round 14HENGZHOU FINANCE141NT♣10=+1
-0.6Round 2NEIMENGGU131NT♦K=+1
-0.6Round 3INDIA TSANGPO245♦♥4+1+1
-0.6Round 4WE THE NORTH34♥♠K+2-11
-0.6Round 5JXBA161NT♥3=-7
-0.6Round 14HENGZHOU FINANCE124♠♥10=+0
-0.7Round 4WE THE NORTH73♠♣K=+0
-0.8Round 6ITALY Seniors232NT♥6=+1
-0.8Round 15GUIZHOU ZHENGYE243NT♠5+3-1
-0.9Round 4WE THE NORTH62♥♠7-1+0
-1.0Round 12SANMING EDUCATION292♠♣8=-1
-1.1Round 13USA 2 Seniors73NT♥K+1+1
-1.3Round 10BEIJINGXUGUANG102♠♣Q=+0
-1.3Round 12SANMING EDUCATION284♥♠7+2+11
-1.3Round 13USA 2 Seniors62♠♥A-1-8
-1.4Round 11HONG PRAISE TEAM124♥♦J=+0
-1.5Round 12SANMING EDUCATION262♥♦2+2-1
-1.6Round 7CHINA JUNIORS54♣♥3=+0
-1.7Round 5JXBA183NT♠6-1-6
-1.7Round 9CHINA XHJT254♥♦6+2-11
-1.7Round 14HENGZHOU FINANCE174♠♦10+1+0
-1.9Round 7CHINA JUNIORS14♥♣8-2+0
-2.0Round 6ITALY Seniors275♠♥A-1-8
-2.2Round 7CHINA JUNIORS104♥♦3-1+1
-2.4Round 1JSQX NJZS BRIDGECLUB72♥♦6-2-2
-2.5Round 7CHINA JUNIORS64♥♦6-3-3
-2.7Round 13USA 2 Seniors103♦♥A-1+1
-3.1Round 14HENGZHOU FINANCE164♠x♥A-1-6
-3.1Round 15GUIZHOU ZHENGYE214♥♦6-1-6
-3.2Round 4WE THE NORTH82♥♣10+1-1
-3.2Round 8SCOTMARK174♥x♣A-1+0
-3.4Round 13USA 2 Seniors43♣♥Q-2-3
-3.6Round 3INDIA TSANGPO283NT♥8+3-1
-3.7Round 2NEIMENGGU113♥x♦10-1-8
-3.7Round 9CHINA XHJT283♥♦4=-2
-3.9Round 4WE THE NORTH92♣♦J-1+1
-4.1Round 12SANMING EDUCATION274♠♥J=+0
-4.2Round 1JSQX NJZS BRIDGECLUB54♠♣10=+0
-4.4Round 9CHINA XHJT234♠♦5=-14
-4.5Round 9CHINA XHJT306♠♦Q-3-11
-4.5Round 12SANMING EDUCATION302♣♦A-4-2
-4.8Round 9CHINA XHJT214♥♠J+1-1
-4.9Round 1JSQX NJZS BRIDGECLUB33NT♦9-2-6
-5.0Round 5JXBA133NT♣10+1+0
-5.0Round 5JXBA194♠♦3-2-6
-5.1Round 13USA 2 Seniors54♥♦A+1-11
-5.2Round 8SCOTMARK193NT♥K-2-11
-5.4Round 3INDIA TSANGPO255♦x♥7-2-9
-5.6Round 1JSQX NJZS BRIDGECLUB102♣x♦Q+1-6
-5.7Round 2NEIMENGGU204♠♥8-1-12
-5.8Round 7CHINA JUNIORS93NT♠2+2+12
-6.0Round 5JXBA144♥♠5-4-2
-6.3Round 15GUIZHOU ZHENGYE294♥♠7=-3
-6.5Round 6ITALY Seniors296♠♦J=+0
-6.8Round 10BEIJINGXUGUANG22♠♥A+2-8
-7.0Round 13USA 2 Seniors14♥♦Q-1-10
-7.2Round 14HENGZHOU FINANCE192♠x♥Q-2-9
-7.5Round 8SCOTMARK184♦♣5+1-11
-7.8Round 1JSQX NJZS BRIDGECLUB23NT♠7+1-7
-7.8Round 15GUIZHOU ZHENGYE286♠♠4=+0
-8.0Round 9CHINA XHJT294♠♦7=-10
-10.0Round 7CHINA JUNIORS44♥♠A-2-12
-10.5Round 6ITALY Seniors253NT♠6=-10
-10.6Round 15GUIZHOU ZHENGYE263NTx♣Q+1-8
-11.4Round 8SCOTMARK163NT♠K=-11