TANG Difei · SHANXI

655rank
-25.7Butler · 50 bds
-0.51per board
±4.5swing
-0.14vs par /bd
-0.68adjusted /bd
Butler per round: -27.8 -8.8 2.7 19.5 -11.3by round

vs par split: bidding -0.67 · play -0.42

Strength of schedule: opponents averaged -0.16/bd (an easy draw) → opponent-adjusted -0.68/bd

Card play — on target: opening leads 87.5% · declarer play 83.3% · defence 82.4%

Card play by contract type — on target
vs NTvs a suit
Opening leads·87.5% (8)
Declarer play·83.3% (12)
Defence·82.4% (17)

Opening leads by suit led: ♠ 66.7% (3) · ♥ 100.0% (2) · ♦ 100.0% (2) · ♣ 100.0% (1)

vs par by strain: a suit -1.09 (33)

vs par by level: part-score -1.16 (19) · game -0.18 (11) · slam -4.00 (3)

By role: declaring -0.93/bd (-1.96 vs par · 24) · defending -0.13/bd (+1.54 vs par · 26)

By vulnerability: vulnerable -1.32/bd (-0.54 vs par · 26) · not vulnerable +0.36/bd (+0.29 vs par · 24)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1J.YeJ.Stepinski – T.PrzyboraClosed10-27.8-2.78-1.40
Round 3J.YeW.Rauld – J.EdelsteinOpen10-8.8-0.88-1.60
Round 5J.YeV.Kholomeev – V.TatarkinClosed10+2.7+0.27+1.20
Round 6W.LiuM.Jacobus – L.O'RourkeClosed10+19.5+1.95+0.80
Round 10J.YeV.Aronov – A.ZobuClosed10-11.3-1.13+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
+14.0Round 6O'ROURKE224♥x♠A-5+15
+10.5Round 6O'ROURKE266♣♦A-1+11
+7.6Round 3RAULD232♠♥K+3+10
+6.5Round 3RAULD273N♥7=+7
+5.8Round 3RAULD283N♦A=+5
+5.2Round 5MOSCOW133N♠2=+5
+4.0Round 5MOSCOW122♣♠K-1+5
+2.9Round 5MOSCOW172N♠4-2+5
+2.4Round 6O'ROURKE252♥♣K=-1
+2.4Round 10POPOVA83N♣4-3+6
+2.1Round 10POPOVA53N♥4+1+11
+1.6Round 5MOSCOW143♦♣7+1+1
+1.6Round 5MOSCOW204♥♣A+1+0
+1.0Round 10POPOVA42♠♥3-1+5
+0.8Round 10POPOVA94♠x♥6-2+0
+0.5Round 10POPOVA64♠♣A=+0
+0.4Round 6O'ROURKE303N♠Q-1+5
+0.1Round 6O'ROURKE293♦♠6+1+0
-0.0Round 3RAULD251N♠8=+0
+0.0Round 6O'ROURKE283N♠3+2+0
-0.2Round 1AUTO-HIT WARSZAWA103N♠Q+1+4
-0.2Round 6O'ROURKE274♥♦K-1-5
-0.3Round 3RAULD211N♣9+1-1
-0.3Round 5MOSCOW193♠♥6-1+2
-0.3Round 10POPOVA33♥♦A=+0
-0.5Round 5MOSCOW162♠♣7+1+0
-0.6Round 6O'ROURKE232♥♣A=-1
-1.3Round 5MOSCOW112♠♠2=-5
-1.4Round 1AUTO-HIT WARSZAWA93N♥10+2+0
-1.8Round 1AUTO-HIT WARSZAWA13♦♠A=-8
-1.8Round 1AUTO-HIT WARSZAWA82♠♦4+2-2
-1.8Round 6O'ROURKE242N♠K-1-5
-2.2Round 3RAULD293N♥K+2+0
-2.3Round 1AUTO-HIT WARSZAWA34♠x♣A-3+4
-2.3Round 1AUTO-HIT WARSZAWA44♠♥10-2-2
-2.4Round 5MOSCOW183♠♣3=+0
-2.9Round 10POPOVA11N♦A=+0
-3.0Round 1AUTO-HIT WARSZAWA63♣♣9-1-4
-3.1Round 1AUTO-HIT WARSZAWA52♠♣7+1+0
-3.5Round 10POPOVA25♦♥K=+0
-4.2Round 3RAULD264♠♦Q=-8
-4.5Round 3RAULD242♦♣K-1-5
-4.7Round 1AUTO-HIT WARSZAWA24♠x♠Q-1-5
-4.8Round 10POPOVA72♦♠K=-11
-5.3Round 6O'ROURKE216♥♣A-1-11
-6.6Round 10POPOVA102♥♣K-2-8
-7.2Round 1AUTO-HIT WARSZAWA74♥♦2+2-1
-7.8Round 3RAULD303N♦5-2-12
-8.1Round 5MOSCOW156N♠K+1-1
-9.7Round 3RAULD226♣♣8-1-12