DING Yufei · CUST

60rank
-34.8Butler · 70 bds
-0.50per board
±4.6swing
-0.34vs par /bd · #46/76
-0.53adjusted /bd
Butler per round: -13 -15.8 -5.7 10.3 0 -19.2 8.6by round

vs par split: bidding -0.12 · play -0.06

Strength of schedule: opponents averaged -0.03/bd (an average draw) → opponent-adjusted -0.53/bd

Card play — on target: opening leads 77.3% #42 of 75 · declarer play 61.1% #64 of 75 · defence 76.3% #50 of 76

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (9)84.6% (13)
Declarer play44.4% (9)77.8% (9)
Defence73.3% (15)78.3% (23)

Opening leads by suit led: ♠ 100.0% (5) · ♥ 80.0% (5) · ♦ 83.3% (6) · ♣ 50.0% (6)

vs par by strain: NT -1.47 (32) · a suit +0.95 (37)

vs par by level: part-score -0.32 (28) · game -0.33 (39) · slam +5.00 (2)

By role: declaring -0.57/bd (-2.19 vs par · 32) · defending -0.44/bd (+1.21 vs par · 38)

By vulnerability: vulnerable -1.03/bd (-1.89 vs par · 35) · not vulnerable +0.03/bd (+1.20 vs par · 35)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1T.QinZ.Grossack – A.GrossackClosed10-13.0-1.30-0.10
Round 2T.QinB.Xiong – Y.ZhouClosed10-15.8-1.58-1.90
Round 4T.QinDAS SHOUVIK – KUSHARI SAYANTANClosed10-5.7-0.57+0.80
Round 5T.QinH.Salomao – T.BattaggiaOpen10+10.3+1.03-1.10
Round 6T.QinN.Correa Laguna – J.Valenzuela RiveraClosed10+0.0+0.00-0.40
Round 7T.QinM.Myllaeri – I.VanniClosed10-19.2-1.92-2.80
Round 8T.QinN.Rosenthal – B.BaskinClosed10+8.6+0.86+3.10

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
+14.6Round 4INDIA86♣x♦A=+15
+8.6Round 5BRASIL173NT♣K+1+1
+7.9Round 8WHITEWALKERS202♥♣J+3+10
+7.3Round 7FINLAND14♠♦10+3+14
+6.9Round 6COLOMBIA254NT♦10=+8
+6.7Round 8WHITEWALKERS144♥♦Q+2+8
+5.3Round 5BRASIL112♣x♠6-2+5
+4.8Round 8WHITEWALKERS114♣♥K=+0
+4.7Round 2SYNREY RDFZ133NT♠8+1+0
+4.3Round 2SYNREY RDFZ144♠♣6-2+5
+4.3Round 6COLOMBIA233NT♦4-1+6
+3.8Round 1USA12♠♣Q-1+9
+3.7Round 6COLOMBIA211NT♥A+1+1
+3.6Round 1USA41NT♠2-2-7
+2.7Round 5BRASIL121NT♣A-1+4
+2.7Round 5BRASIL202♥♠7-3-7
+2.0Round 2SYNREY RDFZ113♠♥4=+6
+1.9Round 5BRASIL144♣♦Q=+5
+1.3Round 6COLOMBIA244♠♣K-1+2
+1.3Round 8WHITEWALKERS133♦♥5+1+10
+1.2Round 1USA103NT♥7+2-2
+1.0Round 7FINLAND81NT♠5+1+0
+0.9Round 2SYNREY RDFZ193NT♣4=-11
+0.9Round 6COLOMBIA303NT♥4-1+4
+0.7Round 4INDIA14♥♦K+2+11
+0.5Round 7FINLAND63NT♠2+1+0
+0.3Round 4INDIA51NT♦2=-1
+0.3Round 6COLOMBIA263NT♠3-1-5
+0.0Round 2SYNREY RDFZ153NT♠6=-1
-0.1Round 1USA34♠♣4+2-2
-0.3Round 4INDIA71NT♠2=-1
-0.4Round 2SYNREY RDFZ175♠♥A=+0
-0.4Round 4INDIA43NT♦9+2+0
-0.5Round 1USA74♠♥9-1+6
-0.5Round 5BRASIL193♦♥5-1-5
-0.5Round 7FINLAND53NT♦4+1-1
-0.7Round 1USA92NT♥4+1-1
-0.7Round 8WHITEWALKERS161♣♥J=+2
-1.0Round 7FINLAND103NT♠6+1-1
-1.0Round 8WHITEWALKERS173♣♥Q-2+0
-1.2Round 8WHITEWALKERS153NT♠J+2+10
-1.4Round 8WHITEWALKERS184♥♦K+1+0
-1.6Round 8WHITEWALKERS121NT♣J-1-5
-1.7Round 2SYNREY RDFZ184♥♣8=-7
-1.7Round 4INDIA63NT♦A=+2
-1.7Round 5BRASIL161NTx♥7-1-5
-2.2Round 1USA23NT♥7+1+0
-2.7Round 1USA62♥x♦7-1+2
-2.7Round 5BRASIL134♠♣4=+0
-2.7Round 5BRASIL153NT♦5=-2
-3.2Round 4INDIA94NT♦3+1-11
-3.3Round 5BRASIL183♠♥K=-7
-3.5Round 6COLOMBIA283♠♦8=-10
-3.6Round 6COLOMBIA294♠♥A=-3
-3.9Round 7FINLAND94♥♠8+1-4
-4.3Round 1USA53NT♥10+2-1
-4.3Round 4INDIA23NT♠10+1+0
-4.3Round 6COLOMBIA274♠♣K+2-1
-4.3Round 7FINLAND7Pass-12
-5.1Round 4INDIA102♦♦5=-6
-5.7Round 2SYNREY RDFZ125♥♦K=-10
-5.7Round 7FINLAND43NT♠10-1-12
-6.0Round 6COLOMBIA223♥♠K+2-6
-6.2Round 7FINLAND24♥♥A=+0
-6.2Round 8WHITEWALKERS193NT♣K+1-4
-6.3Round 4INDIA33♠♥A+1-1
-6.4Round 2SYNREY RDFZ203♥♦K-1-12
-6.4Round 7FINLAND33NT♣Q-5-12
-11.1Round 1USA86♠♦7=-5
-13.5Round 2SYNREY RDFZ163♣x♦A-7+11