DU Feng · WUHAN

522rank
-47.3Butler · 120 bds
-0.39per board
±4.7swing
-0.86vs par /bd · #512/567
-0.26adjusted /bd
Butler per round: 0.6 -13.5 -3.6 -19.9 -7.9 10.2 12 6.3 -19.3 6.7 7.9 -26.8by round

vs par split: bidding -0.80 · play -0.01

Strength of schedule: opponents averaged +0.14/bd (a tough draw) → opponent-adjusted -0.26/bd

Card play — on target: opening leads 75.0% #430 of 567 · declarer play 74.3% #342 of 567 · defence 82.1% #309 of 567

Card play by contract type — on target
vs NTvs a suit
Opening leads77.8% (9)73.3% (15)
Declarer play85.7% (7)71.4% (28)
Defence80.0% (15)82.9% (41)

Opening leads by suit led: ♠ 83.3% (12) · ♥ 60.0% (5) · ♦ 80.0% (5) · ♣ 50.0% (2)

vs par by strain: NT +0.88 (32) · a suit -1.38 (86)

vs par by level: part-score -0.67 (45) · game -0.68 (69) · slam -3.50 (4)

By role: declaring -0.59/bd (-2.97 vs par · 62) · defending -0.18/bd (+1.40 vs par · 58)

By vulnerability: vulnerable -1.25/bd (-1.88 vs par · 60) · not vulnerable +0.46/bd (+0.17 vs par · 60)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1S.ZhouV.Desai – K.SamantClosed10+0.6+0.06-1.00
Round 2J.ShiR.Jagniewski – W.GawelOpen10-13.5-1.35-2.90
Round 3J.ShiG.Chai – S.JiOpen10-3.6-0.36-1.40
Round 4S.ZhouG.Shen – Z.LiClosed10-19.9-1.99-1.80
Round 5S.ZhouS.Haque – M.AhasanOpen10-7.9-0.79-0.20
Round 7S.ZhouY.Wei – J.JinOpen10+10.2+1.02+3.20
Round 8Y.LiuY.Guan – J.LiangClosed10+12.0+1.20+1.30
Round 9Y.LiuW.Song – T.GaoOpen10+6.3+0.63-2.90
Round 10S.ZhouJ.Yan – Q.ZhangClosed10-19.3-1.93+0.00
Round 12Y.LiuB.Thompson – R.CooperClosed10+6.7+0.67+0.40
Round 13Y.LiuJ.Park – J.JangOpen10+7.9+0.79-0.90
Round 14Y.LiuP.Bizon – M.SzymanowskiOpen10-26.8-2.68-4.10

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
+12.4Round 13GALAGILE104♥x♠5-3+14
+8.0Round 7JILIN BA93NT♠2-1+16
+7.9Round 8YENOVA184♦x♣8+1+6
+7.8Round 7JILIN BA55♣x♦10-2+9
+7.5Round 7JILIN BA33NT♣A=+7
+7.3Round 7JILIN BA64♥x♠A-3+9
+7.0Round 12AURUSSIA304♠x♦J-2+10
+6.9Round 1NAMO KK54♠♥3-1+10
+6.8Round 9GUIZHOU ZHENGYE223NT♠6+1+7
+6.8Round 13GALAGILE33NT♠3-1+12
+6.2Round 13GALAGILE64♥♠A=+0
+5.6Round 12AURUSSIA274♠♥J-1+10
+5.2Round 1NAMO KK14♠♣7=+0
+5.2Round 2POLMANY194♠♣A-1+6
+5.1Round 8YENOVA125♣♦2=+11
+4.9Round 12AURUSSIA264♥♦Q-1+6
+4.5Round 7JILIN BA105♦x♠Q-1+8
+4.5Round 14POLAND Seniors172♠♣6+3+6
+4.4Round 5BANGLADESH133NT♦Q=-1
+4.2Round 13GALAGILE41NT♠5+1+6
+3.9Round 12AURUSSIA226♥♦A=+0
+3.8Round 2POLMANY115♦♥K+1+0
+3.8Round 8YENOVA203♣♥3=+0
+3.7Round 10WUHAN XINGYUTU MEDIA42♠♥5=+6
+3.6Round 5BANGLADESH194♠♥4-1+5
+3.2Round 7JILIN BA11NT♦4=+5
+3.1Round 1NAMO KK23NT♥3-1+5
+3.1Round 1NAMO KK84♠♥4-1+10
+3.0Round 9GUIZHOU ZHENGYE283♣♥A=+5
+2.8Round 3ITS MAGIC253♥♦A+1+7
+2.8Round 3ITS MAGIC284♥♠Q+1+0
+2.8Round 9GUIZHOU ZHENGYE273♥♣4-1+9
+2.7Round 3ITS MAGIC214♥♠K=-1
+2.7Round 14POLAND Seniors183NT♠9+1+4
+2.6Round 1NAMO KK92NT♠J+1-2
+2.4Round 13GALAGILE23♦♣Q+1-9
+2.3Round 9GUIZHOU ZHENGYE242♠♥10-1-1
+1.7Round 4DONGFENG FENGSHEN82♠♣10-1+4
+1.7Round 5BANGLADESH183NT♠3-1+6
+1.5Round 10WUHAN XINGYUTU MEDIA52♠♦3-1+5
+1.4Round 9GUIZHOU ZHENGYE263NT♠6+3-12
+1.4Round 10WUHAN XINGYUTU MEDIA9Pass-3
+1.1Round 1NAMO KK62♠♥4-1-8
+1.0Round 8YENOVA163NT♥6-1+5
+0.9Round 12AURUSSIA256♦♥6=-11
+0.9Round 13GALAGILE93NT♠6+2+2
+0.7Round 4DONGFENG FENGSHEN102♦♣A-1+0
+0.7Round 14POLAND Seniors193♣♦K-1+0
+0.6Round 2POLMANY143♦♥6=+5
+0.6Round 3ITS MAGIC245♦♥4+1-1
+0.6Round 5BANGLADESH161NT♠3=+7
+0.6Round 9GUIZHOU ZHENGYE291NT♠6-2-2
+0.5Round 8YENOVA153NT♥2+1+0
+0.4Round 1NAMO KK72♠♠J-1+1
+0.3Round 3ITS MAGIC304♥♠A+1+0
+0.3Round 8YENOVA133♦♠K+1+0
+0.2Round 5BANGLADESH113♠♠4=+0
+0.1Round 3ITS MAGIC223NT♣Q-1+5
-0.0Round 8YENOVA115♠♥A=+0
+0.0Round 10WUHAN XINGYUTU MEDIA86NT♦4=+11
-0.3Round 4DONGFENG FENGSHEN14♥♠K+1+0
-0.3Round 12AURUSSIA232♥♥9+1+0
-0.4Round 7JILIN BA83NT♥Q+2+10
-0.4Round 12AURUSSIA243♥♣3+1-7
-0.6Round 2POLMANY131NT♦K=+1
-0.6Round 4DONGFENG FENGSHEN34♥♠K+2-11
-0.7Round 4DONGFENG FENGSHEN72♠♣K+1+0
-0.8Round 4DONGFENG FENGSHEN91♠♦J=+5
-0.9Round 4DONGFENG FENGSHEN62♥♠7-1+0
-1.0Round 8YENOVA144♥♠6=-1
-1.0Round 13GALAGILE74♠♦2=+1
-1.1Round 3ITS MAGIC265♥♠K+1-13
-1.1Round 14POLAND Seniors143♦♦8=+0
-1.2Round 5BANGLADESH141NT♦J=-6
-1.3Round 12AURUSSIA284♠♦J+2+11
-1.5Round 14POLAND Seniors164♠♥A-1-5
-1.7Round 5BANGLADESH122♥♠K=+0
-1.7Round 9GUIZHOU ZHENGYE254♥♦6+2-11
-1.8Round 9GUIZHOU ZHENGYE304♠♦A-1-10
-1.9Round 8YENOVA174♥♠A-1+2
-2.1Round 10WUHAN XINGYUTU MEDIA12NT♦10-1+1
-2.3Round 14POLAND Seniors201NT♦6=-6
-2.4Round 10WUHAN XINGYUTU MEDIA64♠♣10-1-6
-2.6Round 7JILIN BA23♣♠Q-1-5
-2.7Round 2POLMANY183♣♥10-1-1
-2.7Round 3ITS MAGIC274♥♠2=-3
-2.9Round 9GUIZHOU ZHENGYE233NT♥Q+3-14
-3.1Round 2POLMANY162♦♠9+1+0
-3.3Round 2POLMANY154♥♦10=-6
-3.4Round 14POLAND Seniors131NT♠5=-5
-3.7Round 2POLMANY124♠♥Q-1-12
-3.7Round 8YENOVA193NT♠2-1-10
-3.9Round 10WUHAN XINGYUTU MEDIA73NT♠K+1-1
-4.0Round 2POLMANY174♠♥A-1-10
-4.1Round 3ITS MAGIC233NT♣2-2-7
-4.2Round 9GUIZHOU ZHENGYE214♥♠J=+0
-4.3Round 5BANGLADESH153♣♥Q=+0
-4.5Round 14POLAND Seniors154♠♥4=-11
-4.7Round 10WUHAN XINGYUTU MEDIA103♥♠3=-6
-5.0Round 3ITS MAGIC295♥♠K-1-1
-5.1Round 5BANGLADESH204♠♣2-1-6
-5.1Round 13GALAGILE54♥♦A+1-11
-5.5Round 12AURUSSIA292♠♣7-1-6
-5.7Round 2POLMANY204♠♣4-1-12
-5.7Round 4DONGFENG FENGSHEN43NT♠J+2+0
-5.9Round 1NAMO KK33NT♠9-3-7
-5.9Round 4DONGFENG FENGSHEN54♠x♥K+1-6
-6.0Round 10WUHAN XINGYUTU MEDIA35♣♥A=+0
-6.1Round 5BANGLADESH174♠♣5=-7
-6.8Round 10WUHAN XINGYUTU MEDIA24♠x♥A=-7
-7.0Round 1NAMO KK4Adj.♣2-9
-7.0Round 13GALAGILE14♥♦Q-1-10
-7.4Round 4DONGFENG FENGSHEN25♥x♦A=-10
-7.9Round 14POLAND Seniors114♥♦7-1-10
-8.1Round 12AURUSSIA211NTx♥K-2-9
-8.9Round 1NAMO KK102♣x♠2+2-10
-11.9Round 7JILIN BA72♣x♠5-3-12
-11.9Round 13GALAGILE86♥♠9-1-14
-13.2Round 7JILIN BA44♠♦A=-15
-14.0Round 14POLAND Seniors122♥x♥K-5-14