JIANG Dawei · ONE ESSENTIAL OF RED

68rank
+71.8Butler · 120 bds
+0.60per board
±4.5swing
+0.30vs par /bd · #193/567
+0.60adjusted /bd
Butler per round: 7 -19.3 6.2 8 -11.1 -5.1 13.4 -7.2 38.7 1.2 8.4 31.6by round

vs par split: bidding +0.40 · play -0.12

Strength of schedule: opponents averaged +0.01/bd (an average draw) → opponent-adjusted +0.60/bd

Card play — on target: opening leads 78.1% #346 of 567 · declarer play 82.8% #147 of 567 · defence 80.6% #377 of 567

Card play by contract type — on target
vs NTvs a suit
Opening leads80.0% (10)77.3% (22)
Declarer play75.0% (8)85.7% (21)
Defence83.3% (18)79.5% (44)

Opening leads by suit led: ♠ 63.6% (11) · ♥ 75.0% (8) · ♦ 88.9% (9) · ♣ 100.0% (4)

vs par by strain: NT +1.31 (32) · a suit -0.10 (87)

vs par by level: part-score -0.78 (45) · game +1.01 (70) · slam -0.75 (4)

By role: declaring +0.59/bd (-1.59 vs par · 58) · defending +0.61/bd (+2.06 vs par · 62)

By vulnerability: vulnerable +0.45/bd (+0.46 vs par · 59) · not vulnerable +0.74/bd (+0.15 vs par · 61)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1W.ZhangS.Shen – S.WuClosed10+7.0+0.70-0.10
Round 2W.ZhangA.Braithwaite – A.De LiveraClosed10-19.3-1.93-3.40
Round 3W.ZhangM.Whibley – M.BrownClosed10+6.2+0.62-0.70
Round 4W.ZhangT.Chodchoy – T.JitngamkusolClosed10+8.0+0.80+0.80
Round 6W.ZhangX.Xie – H.ZhaoClosed10-11.1-1.11+0.60
Round 8W.ZhangW.Starkowski – M.KwiecienClosed10-5.1-0.51-0.40
Round 9W.ZhangC.Wang – B.ChenClosed10+13.4+1.34+5.40
Round 10W.ZhangH.Oh – A.MannoClosed10-7.2-0.72-2.80
Round 11W.ZhangP.Batra – S.GuptaClosed10+38.7+3.87+5.00
Round 13W.ZhangM.O'Briain – D.O'GormanClosed10+1.2+0.12-1.60
Round 14W.ZhangH.Qin – M.WanClosed10+8.4+0.84-0.80
Round 15W.ZhangH.Zhang – H.ZhangClosed10+31.6+3.16+1.60

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
+12.2Round 11INDIA Women195♥x♠A-5+11
+12.0Round 3NEW ZEALAND Open304♠x♥A-5+12
+11.6Round 4BBC THAILAND93NTx♥6-3+9
+10.4Round 9HUAXINHUANBAO294♠x♥A=+12
+9.5Round 8POLAND Seniors174♠♥7=+8
+9.0Round 11INDIA Women134♥♦4-2+8
+9.0Round 15HONG PRAISE TEAM264♥x♣A-3+5
+8.3Round 15HONG PRAISE TEAM303NT♣10+2+8
+7.6Round 9HUAXINHUANBAO214♠x♦A=+5
+7.1Round 15HONG PRAISE TEAM294♥♣4+1+4
+7.0Round 14TIANYA BRIDGE FATE204♥♦A-3+4
+6.6Round 11INDIA Women154♠♦5-1+13
+6.5Round 15HONG PRAISE TEAM274♥♠K=+8
+5.9Round 11INDIA Women115♥♣K=+8
+5.9Round 15HONG PRAISE TEAM223NT♥9=+0
+5.6Round 14TIANYA BRIDGE FATE154♠♥3-1-2
+5.2Round 2AUSTRALIA MIXED193NT♠3-1+6
+5.1Round 1SAN CHEN FUND72♠♦A=+6
+4.8Round 3NEW ZEALAND Open232♠♠3+2+2
+4.8Round 10SEOUL MIXED64♠♣10-2+8
+4.7Round 6UICC WUHAN261NT♦J-3+5
+4.6Round 11INDIA Women165♦♠8-2+6
+4.5Round 13IRELAND86♦♦9=+0
+4.3Round 14TIANYA BRIDGE FATE142NT♣10-2+5
+3.9Round 4BBC THAILAND101NT♥6=+5
+3.9Round 10SEOUL MIXED73NT♦7+1+1
+3.9Round 13IRELAND104♥♠6-2+8
+3.8Round 2AUSTRALIA MIXED163NT♣6=+7
+3.6Round 9HUAXINHUANBAO274♥x♣6-2-3
+3.5Round 13IRELAND14♥♦Q=+0
+3.4Round 3NEW ZEALAND Open284♥♦4+2+1
+3.2Round 9HUAXINHUANBAO225♦♠6-1+5
+3.2Round 14TIANYA BRIDGE FATE162♠♥K+1+0
+3.1Round 1SAN CHEN FUND63♥♠4+1-6
+3.1Round 1SAN CHEN FUND84♠♦A-1+10
+2.7Round 9HUAXINHUANBAO283♣♥A-1+0
+2.5Round 11INDIA Women183♥x♠3-1+3
+2.4Round 14TIANYA BRIDGE FATE132♠♥Q+1+1
+2.3Round 1SAN CHEN FUND92♦♠K+2-2
+2.2Round 1SAN CHEN FUND53♣♥3+2+7
+2.1Round 10SEOUL MIXED12♥♣Q-1-1
+1.9Round 3NEW ZEALAND Open213NT♠Q=-2
+1.9Round 13IRELAND23♦♥K=-9
+1.9Round 14TIANYA BRIDGE FATE113NT♣6=-1
+1.7Round 9HUAXINHUANBAO254♥♦6+2+11
+1.4Round 11INDIA Women124♥♦J=+0
+1.3Round 1SAN CHEN FUND33♥♦K=+0
+1.2Round 11INDIA Women172♥♠2-1+8
+1.0Round 8POLAND Seniors143NT♣5+1+1
+1.0Round 8POLAND Seniors202NT♥2-1+5
+1.0Round 13IRELAND53♥♠9+1-7
+0.9Round 4BBC THAILAND62♥♠9-1+0
+0.9Round 6UICC WUHAN222♥♦Q+1+0
+0.8Round 6UICC WUHAN253NT♠3-1+5
+0.6Round 4BBC THAILAND34♥♠K+2+11
+0.5Round 8POLAND Seniors153NT♠2=+1
+0.5Round 11INDIA Women201NT♥8-1+0
+0.4Round 4BBC THAILAND54♠♥A+1+1
+0.3Round 4BBC THAILAND14♥♠K+1+0
+0.3Round 6UICC WUHAN213NT♥3-3+6
+0.2Round 10SEOUL MIXED33♣♦6+2-6
+0.1Round 3NEW ZEALAND Open223NT♥3-1+5
+0.1Round 9HUAXINHUANBAO242♥♦8-1+4
+0.1Round 14TIANYA BRIDGE FATE173NT♥J=+2
+0.0Round 1SAN CHEN FUND101NT♥3+1+0
+0.0Round 8POLAND Seniors114♠♥K+1+0
-0.0Round 10SEOUL MIXED86NT♣7=-11
-0.1Round 4BBC THAILAND73♠♣K+1-1
-0.2Round 6UICC WUHAN302♥♠2+2+6
-0.2Round 13IRELAND75♣♦2=+2
-0.2Round 15HONG PRAISE TEAM213♦♠K-1+3
-0.2Round 15HONG PRAISE TEAM243NT♠5+2+0
-0.3Round 2AUSTRALIA MIXED123♥♦5-1-10
-0.3Round 3NEW ZEALAND Open245♦♥J=-2
-0.5Round 9HUAXINHUANBAO263NT♥9+2+12
-0.5Round 15HONG PRAISE TEAM253NT♣4+1+0
-0.6Round 1SAN CHEN FUND13♠♣3+1-6
-0.6Round 2AUSTRALIA MIXED131NT♦K=+1
-0.6Round 14TIANYA BRIDGE FATE124♠♦2=+0
-1.1Round 3NEW ZEALAND Open265♥♠K+1-13
-1.1Round 13IRELAND93NT♠7=+0
-1.3Round 4BBC THAILAND25♣x♥A-1+0
-1.4Round 10SEOUL MIXED9Pass+3
-1.5Round 1SAN CHEN FUND23♦♠6+1+0
-1.6Round 6UICC WUHAN233♠♣6=+0
-1.7Round 4BBC THAILAND82♠♣10-1-4
-1.8Round 6UICC WUHAN243♦♣9+1-1
-1.8Round 13IRELAND42♥♠10+1-1
-1.8Round 15HONG PRAISE TEAM232♠♠2+1-1
-1.9Round 8POLAND Seniors163♥♣A=-6
-2.3Round 8POLAND Seniors133♠♦4-2-2
-2.3Round 10SEOUL MIXED102♠♦6+1-1
-2.5Round 15HONG PRAISE TEAM283NT♥K+3-11
-2.7Round 2AUSTRALIA MIXED183♣♦K-1-1
-3.2Round 8POLAND Seniors185♠♥Q=+0
-3.3Round 2AUSTRALIA MIXED154♥♦10=-6
-3.5Round 3NEW ZEALAND Open253NT♦A-1+0
-3.6Round 2AUSTRALIA MIXED143♦♦5-1+2
-3.6Round 3NEW ZEALAND Open274♥♠3+1-4
-3.6Round 6UICC WUHAN275♠x♥A-1-9
-3.6Round 8POLAND Seniors124♥♦K+2-11
-3.7Round 10SEOUL MIXED44♦♠6-1-6
-4.0Round 10SEOUL MIXED52♠x♦6-1-7
-4.1Round 6UICC WUHAN283NT♦3-1-6
-4.4Round 14TIANYA BRIDGE FATE185♣x♣A-2-5
-4.9Round 13IRELAND64♥♠7-1-10
-5.2Round 11INDIA Women145♣♦Q=-7
-5.4Round 2AUSTRALIA MIXED174♠x♥A-1-11
-5.6Round 13IRELAND33NT♠2=+1
-5.7Round 2AUSTRALIA MIXED203♠♣9-1-12
-6.1Round 8POLAND Seniors193NT♥Q=+0
-6.5Round 6UICC WUHAN296♠♦J=+0
-6.6Round 4BBC THAILAND45♦♣6-1-13
-6.7Round 2AUSTRALIA MIXED115♦♥6-1-10
-6.8Round 10SEOUL MIXED23♠♥K+1-8
-7.5Round 3NEW ZEALAND Open294♠♥J-1-6
-7.7Round 9HUAXINHUANBAO236♦♥9=+8
-7.7Round 9HUAXINHUANBAO304♠♦9=+0
-8.0Round 1SAN CHEN FUND44♥♦9=-10
-11.1Round 14TIANYA BRIDGE FATE193NT♠5=-12