DONG Hao Zhen (John) · THE CANADIANS

48rank
-10.9Butler · 64 bds
-0.17per board
±4.8swing
-0.02vs par /bd · #47/91
+0.17adjusted /bd
Butler per round: 20 -20.3 3.9 -4.3 3.8 -9 -7.1 2.1by round

vs par split: bidding -0.51 · play +0.48

Strength of schedule: opponents averaged +0.34/bd (a tough draw) → opponent-adjusted +0.17/bd

Card play — on target: opening leads 72.2% #74 of 91 · declarer play 72.7% #46 of 91 · defence 74.2% #76 of 91

Card play by contract type — on target
vs NTvs a suit
Opening leads33.3% (3)80.0% (15)
Declarer play50.0% (2)77.8% (9)
Defence50.0% (6)80.0% (25)

Opening leads by suit led: ♠ 40.0% (5) · ♥ 100.0% (5) · ♦ 80.0% (5) · ♣ 66.7% (3)

vs par by strain: NT -1.33 (12) · a suit +0.28 (51)

vs par by level: part-score +2.24 (21) · game +0.00 (35) · slam -7.00 (7)

By role: declaring +0.38/bd (-1.78 vs par · 32) · defending -0.72/bd (+1.75 vs par · 32)

By vulnerability: vulnerable +0.34/bd (+0.06 vs par · 32) · not vulnerable -0.68/bd (-0.09 vs par · 32)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1H.LubaK.Goscianski – K.MackowiakOpen8+20.0+2.50+0.38
Round 2H.LubaT.Van De Paverd – O.NijssenOpen8-20.3-2.54+0.12
Round 3H.LubaMENEZES KAMRYN – R.BhimanaikClosed8+3.9+0.49-1.38
Round 4H.LubaY.Ding – Z.CaiClosed8-4.3-0.54-2.00
Round 5H.LubaS.Gras – L.JozkowiakClosed8+3.8+0.47+2.75
Round 6H.LubaK.Cichy – K.KopkaOpen8-9.0-1.12-1.75
Round 7H.LubaM.Lu – Y.LiuClosed8-7.1-0.89-1.12
Round 8H.LubaG.Giubilo – G.GiubiloOpen8+2.1+0.26+2.88

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
+10.3Round 1DABROWKA65♦♣4=+0
+8.4Round 3INDIA203NT♦Q-1+6
+7.3Round 5DABROWKA PO74♣♦5=+1
+6.6Round 7SXSTARLORD203NT♥5+2+0
+6.5Round 1DABROWKA54♥♦A=+7
+5.9Round 7SXSTARLORD185♣x♠K=+9
+5.5Round 1DABROWKA26♥♣A=+0
+5.4Round 8ITALIA283♥♦A=+12
+5.2Round 3INDIA232NT♦4-2+8
+4.5Round 1DABROWKA74♥♣A-1+6
+4.3Round 8ITALIA324♠♣3-2+6
+4.2Round 6POLAND144♥♣2-1+10
+3.9Round 1DABROWKA44♠♥4=+3
+3.8Round 3INDIA221NT♠J=+5
+3.7Round 4CHINA RDFZ293NT♥6+1+0
+3.6Round 4CHINA RDFZ303♦♥9+1+8
+3.3Round 8ITALIA264♠♥3=+0
+3.2Round 6POLAND112♠x♠K-2+4
+2.4Round 6POLAND154♥♦A+1+0
+2.2Round 3INDIA186NT♥10+1-11
+2.1Round 4CHINA RDFZ322NT♥6=-9
+1.9Round 2BADOELL94♠♦7=-1
+1.9Round 6POLAND124♥♣2=+0
+1.9Round 7SXSTARLORD172♥♥2=+0
+1.8Round 5DABROWKA PO34♥♦3+3+14
+1.6Round 5DABROWKA PO42♣♦A-1+0
+1.1Round 4CHINA RDFZ252♥♠6+2+1
+0.9Round 3INDIA242♥♣K-1+4
+0.8Round 5DABROWKA PO12♥♦J+2+2
+0.8Round 6POLAND134♥♦K+1+0
+0.7Round 8ITALIA254♠♣3+1+0
+0.3Round 5DABROWKA PO23♥♦A-1+2
+0.2Round 8ITALIA30Adj.♦2+1
+0.1Round 2BADOELL124♦♣K=+11
-0.4Round 7SXSTARLORD194♥♣A-1-5
-0.5Round 8ITALIA292♠♥6+3+9
-0.6Round 3INDIA174♠♣K+1+0
-1.0Round 4CHINA RDFZ284♥♠9-1-1
-1.1Round 7SXSTARLORD233♥♠5=+0
-1.3Round 1DABROWKA14♠♦9-2+0
-1.3Round 2BADOELL105♦♥K=+0
-1.5Round 5DABROWKA PO84♥♠6=-8
-1.6Round 4CHINA RDFZ314♥♦Q=+1
-1.8Round 6POLAND94♥♣8+1-1
-1.9Round 8ITALIA273♥♠3=+0
-2.0Round 4CHINA RDFZ262♥♣Q=-5
-2.3Round 2BADOELL152NT♣4+1-1
-2.4Round 2BADOELL143♣♦9+1+0
-2.4Round 5DABROWKA PO63NT♥10+2+11
-2.5Round 2BADOELL134♠♥A+1+0
-4.1Round 5DABROWKA PO56♠♠8=+0
-4.6Round 1DABROWKA83NT♥A-3-6
-4.8Round 1DABROWKA33NT♠5+1-7
-4.9Round 7SXSTARLORD214♠♣3-1-5
-5.4Round 2BADOELL164♠♥Q=+0
-6.0Round 7SXSTARLORD244♥♦A=-8
-6.7Round 3INDIA216♠x♣A-2-10
-8.4Round 2BADOELL115♣x♦K-4-8
-8.8Round 6POLAND103NTx♥4=-12
-9.1Round 7SXSTARLORD226♠♥A=+0
-9.3Round 3INDIA196♠♠2-2-13
-9.4Round 8ITALIA313♣x♣3-4-5
-10.2Round 4CHINA RDFZ275♥x♦K-1-11
-10.9Round 6POLAND166♦x♣A-2-15