ZHANG Bangxiang · CHINA OPN(B)

142rank
+33.3Butler · 56 bds
+0.59per board
±4.5swing
+2.23vs par /bd · #51/579
+0.88adjusted /bd
Butler per round: 0.6 -0.8 17.5 8.3 -7 8.1 10.4 -3.8by round

vs par split: bidding +1.43 · play +0.80

Strength of schedule: opponents averaged +0.29/bd (a tough draw) → opponent-adjusted +0.88/bd

Card play — on target: opening leads 75.0% #317 of 579 · declarer play 85.7% #107 of 579 · defence 90.6% #201 of 579

Card play by contract type — on target
vs NTvs a suit
Opening leads83.3% (6)66.7% (6)
Declarer play83.3% (6)87.5% (8)
Defence85.7% (14)94.4% (18)

Opening leads by suit led: ♠ 80.0% (5) · ♥ 66.7% (3) · ♦ 100.0% (3) · ♣ 0.0% (1)

vs par by strain: NT +3.17 (23) · a suit +1.58 (33)

vs par by level: part-score +1.61 (28) · game +0.86 (21) · slam +8.86 (7)

By role: declaring -0.10/bd (-1.50 vs par · 24) · defending +1.12/bd (+5.03 vs par · 32)

By vulnerability: vulnerable +0.49/bd (+2.00 vs par · 28) · not vulnerable +0.70/bd (+2.46 vs par · 28)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1X.LiB.Dey – S.BehuriaOpen7+0.6+0.09+2.14
Round 2X.LiM.Iliev – H.HristovOpen7-0.8-0.11-1.71
Round 3X.LiS.Bi – Y.WeiOpen7+17.5+2.50+1.57
Round 4X.LiK.Buras – G.NarkiewiczClosed7+8.3+1.19+5.86
Round 5X.LiM.Whibley – S.HansOpen7-7.0-1.00-1.00
Round 6X.LiY.Yang – Y.DongOpen7+8.1+1.16+4.57
Round 7X.LiM.Harding – G.BrekkaOpen7+10.4+1.49+2.86
Round 8X.LiW.Olanski – V.VainikonisClosed7-3.8-0.54+3.57

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
+12.8Round 1AZURE32NTx♣Q-4+14
+9.9Round 3JILINDINGYUAN196NT♠2-1+20
+8.6Round 2BULGARIAN ALL STARS116♦♥K+1+1
+8.0Round 2BULGARIAN ALL STARS106NT♥2-1+12
+6.6Round 3JILINDINGYUAN202♥♦A-2+15
+6.2Round 1AZURE63NT♦Q=+11
+5.9Round 5LITTLE MECK66♣♠8+1+13
+5.2Round 3JILINDINGYUAN216♠♥J+1-13
+5.0Round 6KALAJUN-XINJIANG123NT♠2-2+11
+5.0Round 7KCB161♠x♣4-1+11
+4.6Round 4BRIDGE 24236NT♦10-2+17
+4.0Round 8VITAS226NT♥5-1+12
+3.6Round 6KALAJUN-XINJIANG83♣♦Q+1+7
+3.3Round 6KALAJUN-XINJIANG103NT♠Q-1+6
+3.0Round 7KCB211NT♠Q=+6
+2.9Round 3JILINDINGYUAN152♠♦3+1+1
+2.8Round 7KCB192♥♠7-2+2
+2.7Round 4BRIDGE 24273♣♦5+2+6
+2.7Round 7KCB153♠♣K=+13
+2.6Round 8VITAS231NT♠6-2+3
+1.9Round 1AZURE23NT♥10-2+6
+1.2Round 6KALAJUN-XINJIANG113♦♦3-2-1
+1.2Round 8VITAS244♠x♣5-2+4
+1.0Round 4BRIDGE 24255♦♥K+1+13
+1.0Round 5LITTLE MECK74♠♥6=+0
+0.7Round 4BRIDGE 24245♦♠6=-2
+0.4Round 5LITTLE MECK52♥♣A+1+0
+0.3Round 7KCB204♠♦6+2-13
+0.1Round 4BRIDGE 24264♠♣A=+13
+0.1Round 6KALAJUN-XINJIANG132♦♠K-1+1
+0.0Round 4BRIDGE 24222♥♦A+1+0
-0.2Round 1AZURE51NT♣3+2+0
-0.6Round 5LITTLE MECK22♥♠10+1+0
-0.8Round 4BRIDGE 24283NT♣4-1-6
-1.1Round 6KALAJUN-XINJIANG94♥♣3=+13
-1.2Round 3JILINDINGYUAN182♠♥Q-1-2
-1.5Round 8VITAS282♥♣3=+7
-1.6Round 7KCB173♦♠K-2-1
-1.8Round 7KCB181NT♥5=+2
-1.9Round 5LITTLE MECK32NT♠J-2-6
-2.0Round 8VITAS254♠x♦A-3+3
-2.0Round 8VITAS263NT♠3=+0
-2.1Round 2BULGARIAN ALL STARS123♥♣K=+0
-2.2Round 3JILINDINGYUAN172♥♠K+1+0
-2.6Round 2BULGARIAN ALL STARS94♣♦K+1-6
-2.6Round 5LITTLE MECK13NT♥A+1-1
-2.9Round 2BULGARIAN ALL STARS141NT♥4=-5
-3.0Round 1AZURE73NT♥10+1+0
-3.3Round 2BULGARIAN ALL STARS83♠♥K=-6
-3.7Round 3JILINDINGYUAN163NT♣10+4-10
-4.0Round 6KALAJUN-XINJIANG144♠x♦Q-1-5
-5.0Round 1AZURE41NT♣6-2-2
-6.1Round 8VITAS273NT♣5-5-4
-6.5Round 2BULGARIAN ALL STARS134♠♥8-3-8
-9.2Round 5LITTLE MECK43NT♣6-2-13
-12.1Round 1AZURE14♦x♠A-4-14