🇹🇼 CHEN Weiyuan · CHINESE TAIPEI

65rank
+8.3Butler · 154 bds
+0.05per board
±4.8swing
-0.12vs par /bd · #65/99
-0.05adjusted /bd
Butler per round: 20.1 14.9 11 5.8 -1.5 5.2 -21.1 17.7 3.8 -14.8 -32.8by round

vs par split: bidding +0.01 · play -0.14

Strength of schedule: opponents averaged -0.10/bd (an easy draw) → opponent-adjusted -0.05/bd

Card play — on target: opening leads 94.3% #1 of 99 · declarer play 81.1% #14 of 99 · defence 80.6% #68 of 99

Card play by contract type — on target
vs NTvs a suit
Opening leads91.7% (12)95.7% (23)
Declarer play100.0% (9)75.0% (28)
Defence71.4% (21)84.3% (51)

Opening leads by suit led: ♠ 87.5% (8) · ♥ 90.9% (11) · ♦ 100.0% (9) · ♣ 100.0% (7)

vs par by strain: NT +0.46 (41) · a suit -0.36 (112)

vs par by level: part-score +0.12 (58) · game -0.06 (86) · slam -2.56 (9)

By role: declaring -0.02/bd (-2.39 vs par · 82) · defending +0.13/bd (+2.47 vs par · 72)

By vulnerability: vulnerable -0.50/bd (-0.61 vs par · 77) · not vulnerable +0.61/bd (+0.38 vs par · 77)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2C.ChangS.Avital – I.BaniriClosed14+20.1+1.44+1.00
Round 3C.ChangW.Peniston – R.CaveOpen14+14.9+1.06+1.93
Round 4C.ChangP.Godlewski – K.MajewskiClosed14+11.0+0.79+0.36
Round 5C.ChangN.Man – S.TsengClosed14+5.8+0.41-3.50
Round 7C.ChangY.Caris – P.DupontClosed14-1.5-0.11-0.07
Round 9C.ChangKAR SOUVIK – ROY SAGNIKOpen14+5.2+0.37+3.00
Round 10C.ChangM.Balodis – G.DreimanisClosed14-21.1-1.51-1.29
Round 11C.ChangF.Basoalto – N.DavilaClosed14+17.7+1.26-0.36
Round 13C.ChangS.Caspersen – C.LahrmannClosed14+3.8+0.27-0.14
Round 15C.ChangG.Giubilo – F.PortaClosed14-14.8-1.06+1.21
Round 16C.ChangI.Petersen – T.BodinClosed14-32.8-2.34-3.43

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
+10.6Round 3🇧🇲 BERMUDA13NT♣6-1+14
+10.3Round 11🇨🇱 CHILE144♥x♦3-3+12
+9.5Round 11🇨🇱 CHILE24♥♦A=+3
+8.5Round 3🇧🇲 BERMUDA44♥♣A=+10
+8.4Round 9🇮🇳 INDIA245♣♠9-1+11
+8.4Round 13🇩🇰 DENMARK104♥♦K=+1
+8.2Round 7🇳🇱 NETHERLANDS233NT♥7-1+6
+7.5Round 13🇩🇰 DENMARK94♠♦3=+7
+7.4Round 4🇵🇱 POLAND103♥♠2+1+10
+7.0Round 4🇵🇱 POLAND54♠♥A-1+12
+6.9Round 11🇨🇱 CHILE123NT♣8=+3
+6.4Round 11🇨🇱 CHILE95♣♥K=+0
+6.2Round 7🇳🇱 NETHERLANDS184♥♦Q-2+6
+5.9Round 2🇮🇱 ISRAEL254♠♥6+3+14
+5.5Round 9🇮🇳 INDIA262♦♠J=+12
+5.2Round 2🇮🇱 ISRAEL164♥♦A+1+4
+5.2Round 10🇱🇻 LATVIA253NT♥5+4+14
+5.1Round 5🇭🇰 CHINA HONG KONG284♥♣3-1+10
+4.9Round 11🇨🇱 CHILE63NT♠4-1+6
+4.8Round 2🇮🇱 ISRAEL264♥♠K=+9
+4.5Round 7🇳🇱 NETHERLANDS264♥♠A+1+0
+4.4Round 3🇧🇲 BERMUDA34♥♦3+1+1
+4.3Round 9🇮🇳 INDIA193NT♥2=-2
+4.0Round 3🇧🇲 BERMUDA83NT♦6-1+10
+4.0Round 3🇧🇲 BERMUDA133♥♠2-1+6
+3.9Round 4🇵🇱 POLAND43♦♥2-2+7
+3.9Round 4🇵🇱 POLAND63♦♣Q=+0
+3.9Round 11🇨🇱 CHILE82NT♠Q-2+6
+3.8Round 7🇳🇱 NETHERLANDS226♠♣J=-11
+3.6Round 13🇩🇰 DENMARK122♠♠5+2+6
+3.6Round 15🇮🇹 ITALY142♣♥A=+5
+3.4Round 5🇭🇰 CHINA HONG KONG163NT♠7+3-11
+3.4Round 5🇭🇰 CHINA HONG KONG253♠♦2=+0
+3.3Round 5🇭🇰 CHINA HONG KONG173NT♠8+2-10
+3.3Round 5🇭🇰 CHINA HONG KONG223NT♦5+1-1
+3.1Round 7🇳🇱 NETHERLANDS246♠♥5+1+11
+3.0Round 5🇭🇰 CHINA HONG KONG213NT♣Q+2+1
+2.9Round 13🇩🇰 DENMARK13♠♠2=+7
+2.8Round 4🇵🇱 POLAND73NT♠7+1+0
+2.6Round 3🇧🇲 BERMUDA63♦♣6-1+5
+2.6Round 11🇨🇱 CHILE12♠♣A=+0
+2.5Round 2🇮🇱 ISRAEL222♠♦J+1+0
+2.4Round 3🇧🇲 BERMUDA112♠♦7+1+0
+2.4Round 7🇳🇱 NETHERLANDS204♠♦3=-1
+2.4Round 15🇮🇹 ITALY101NT♦6-2+2
+2.4Round 16🇸🇪 SWEDEN214♥♣A+1-11
+2.3Round 10🇱🇻 LATVIA163♥♠A+1-1
+2.2Round 2🇮🇱 ISRAEL175♦♠A+1-11
+2.2Round 9🇮🇳 INDIA173♦♠9-3+1
+2.2Round 9🇮🇳 INDIA254♠♣6-1+5
+2.1Round 2🇮🇱 ISRAEL184♠♥K=+0
+2.1Round 13🇩🇰 DENMARK83NT♣3+3+1
+2.1Round 15🇮🇹 ITALY84♦♥K-1+4
+2.0Round 9🇮🇳 INDIA272♠♥Q+1+1
+1.9Round 2🇮🇱 ISRAEL213♣♠Q-1+2
+1.9Round 7🇳🇱 NETHERLANDS173NT♠6+1+4
+1.9Round 10🇱🇻 LATVIA182NT♥3-1+6
+1.9Round 13🇩🇰 DENMARK76♥x♣K-2+0
+1.8Round 3🇧🇲 BERMUDA2Pass+3
+1.6Round 5🇭🇰 CHINA HONG KONG243♠♣9-2-1
+1.6Round 7🇳🇱 NETHERLANDS192♣♦4+1+0
+1.6Round 11🇨🇱 CHILE43♥♣4-1+5
+1.5Round 16🇸🇪 SWEDEN163NT♣3=-1
+1.3Round 15🇮🇹 ITALY33♦♦4+1+10
+1.3Round 15🇮🇹 ITALY124♥♦A=+0
+1.1Round 2🇮🇱 ISRAEL284♥♦2+2-11
+1.0Round 13🇩🇰 DENMARK114♥♠6+2-11
+1.0Round 13🇩🇰 DENMARK134♠♥10+2+13
+0.9Round 9🇮🇳 INDIA284♥♠2=+0
+0.9Round 10🇱🇻 LATVIA281NTx♥6-2+2
+0.8Round 2🇮🇱 ISRAEL273NT♠7+2+0
+0.8Round 10🇱🇻 LATVIA175♠x♥A-2+0
+0.8Round 15🇮🇹 ITALY134♥♣4=+3
+0.6Round 3🇧🇲 BERMUDA125♣x♠Q-3+5
+0.6Round 4🇵🇱 POLAND122♣♥5=-2
+0.6Round 10🇱🇻 LATVIA263NT♣5=+1
+0.6Round 16🇸🇪 SWEDEN204♠♣K-1+6
+0.5Round 5🇭🇰 CHINA HONG KONG153♥♦6+1+6
+0.5Round 9🇮🇳 INDIA225♠♥8+1+1
+0.5Round 15🇮🇹 ITALY14♠♣K+2+1
+0.5Round 16🇸🇪 SWEDEN172♦♦3=-1
+0.5Round 16🇸🇪 SWEDEN193NT♠4+1+1
+0.5Round 16🇸🇪 SWEDEN264♠♥3+3-12
+0.4Round 9🇮🇳 INDIA202♠♣A=+6
+0.4Round 10🇱🇻 LATVIA274♥♣9+1+0
+0.4Round 16🇸🇪 SWEDEN283NT♠5+1+1
+0.0Round 15🇮🇹 ITALY44♥♠10+1+0
-0.1Round 2🇮🇱 ISRAEL242♠♣5+1+0
-0.1Round 3🇧🇲 BERMUDA91NT♣5-1+2
-0.1Round 7🇳🇱 NETHERLANDS162♠♦6=+0
-0.1Round 11🇨🇱 CHILE101NT♠4+1-1
-0.2Round 15🇮🇹 ITALY63NT♠7+1+0
-0.4Round 4🇵🇱 POLAND33NT♠6+1-1
-0.4Round 15🇮🇹 ITALY93♠♥A+1+8
-0.5Round 4🇵🇱 POLAND21NT♠10=+1
-0.5Round 5🇭🇰 CHINA HONG KONG274♠♥6=-3
-0.5Round 10🇱🇻 LATVIA212♥♠K=+0
-0.5Round 11🇨🇱 CHILE33NT♦2+2+0
-0.6Round 2🇮🇱 ISRAEL154♠♣J=-1
-0.6Round 16🇸🇪 SWEDEN183♦♠6+1+0
-0.6Round 16🇸🇪 SWEDEN252NT♥8-1+4
-0.9Round 4🇵🇱 POLAND13♥♦A-1+1
-0.9Round 4🇵🇱 POLAND145♣x♥Q-1-5
-1.1Round 2🇮🇱 ISRAEL194♠♦5=+0
-1.1Round 4🇵🇱 POLAND113♥♠7=-1
-1.1Round 5🇭🇰 CHINA HONG KONG196♥♣10=+0
-1.1Round 9🇮🇳 INDIA216♠♣3+1+13
-1.3Round 5🇭🇰 CHINA HONG KONG202♠♠6+1-10
-1.3Round 11🇨🇱 CHILE53NT♦3+2-1
-1.4Round 13🇩🇰 DENMARK144♥♥2+1+0
-1.5Round 4🇵🇱 POLAND84♥♣A-2+0
-1.5Round 15🇮🇹 ITALY23NT♥5+2+0
-1.6Round 10🇱🇻 LATVIA153NT♥3+2-11
-1.8Round 2🇮🇱 ISRAEL236♥♦J+1+13
-1.8Round 13🇩🇰 DENMARK23♥♣K-1-10
-2.0Round 10🇱🇻 LATVIA243NT♥Q-2+0
-2.1Round 9🇮🇳 INDIA164♠♥2=+0
-2.1Round 13🇩🇰 DENMARK54♥♦3+2-1
-2.3Round 9🇮🇳 INDIA183NT♣4+2+12
-2.4Round 15🇮🇹 ITALY52♠♥J+1+0
-2.6Round 16🇸🇪 SWEDEN232♠♣5-2-7
-2.8Round 2🇮🇱 ISRAEL201NT♠Q=-5
-2.8Round 5🇭🇰 CHINA HONG KONG233♠♠7-1-5
-2.9Round 13🇩🇰 DENMARK33NT♠J-1-5
-3.2Round 4🇵🇱 POLAND93♠♦A-3-5
-3.2Round 10🇱🇻 LATVIA194♥♦4+1-2
-3.8Round 7🇳🇱 NETHERLANDS274♠♥6-1-5
-3.9Round 5🇭🇰 CHINA HONG KONG263♦♣6=-12
-4.1Round 16🇸🇪 SWEDEN273♦x♦7-1-8
-4.2Round 3🇧🇲 BERMUDA74♠♦J=-9
-4.2Round 7🇳🇱 NETHERLANDS154♠x♦5-2-2
-4.4Round 11🇨🇱 CHILE114♥♦Q-1-4
-4.5Round 10🇱🇻 LATVIA224♠♣8-3-10
-4.8Round 7🇳🇱 NETHERLANDS214♠♦Q=+9
-5.6Round 3🇧🇲 BERMUDA142♦♣7+1-8
-5.7Round 3🇧🇲 BERMUDA102♠♣5-1-5
-5.9Round 9🇮🇳 INDIA151NTx♣6=-8
-6.1Round 4🇵🇱 POLAND133NT♥8-1-12
-6.9Round 7🇳🇱 NETHERLANDS253♦♣9+1-1
-7.5Round 16🇸🇪 SWEDEN243♠x♦5-3+9
-7.6Round 13🇩🇰 DENMARK65♦♥K=+2
-8.2Round 5🇭🇰 CHINA HONG KONG185♦♠3+1-13
-8.4Round 3🇧🇲 BERMUDA51NT♣4-4-7
-8.5Round 10🇱🇻 LATVIA203NT♦5+2-2
-8.8Round 13🇩🇰 DENMARK44♠♣3-1-12
-9.3Round 15🇮🇹 ITALY114♠x♣Q=-4
-9.8Round 9🇮🇳 INDIA234♠♥A=-10
-9.9Round 11🇨🇱 CHILE136♥♠2-2-17
-11.9Round 16🇸🇪 SWEDEN153♠x♠A+1-14
-11.9Round 16🇸🇪 SWEDEN226♠♣Q-5-15
-12.2Round 11🇨🇱 CHILE76♥♣K-2-17
-12.9Round 10🇱🇻 LATVIA232♠x♣5=-15
-13.0Round 15🇮🇹 ITALY74♠x♦A-3-12
-13.4Round 7🇳🇱 NETHERLANDS285♣♥Q+2-17