🇨🇳 LI Cheng · CHINA

30rank
+43.3Butler · 120 bds
+0.36per board
±4.0swing
+0.14vs par /bd · #38/111
+0.19adjusted /bd
Butler per round: -1.7 -1.4 9 1.6 8.9 -26.3 19.8 -12.8 19.6 4.1 -17.5 10.9 11.9 -1.1 18.3by round

vs par split: bidding -0.27 · play +0.41

Strength of schedule: opponents averaged -0.17/bd (an easy draw) → opponent-adjusted +0.19/bd

Card play — on target: opening leads 83.9% #33 of 111 · declarer play 76.9% #42 of 111 · defence 91.7% #17 of 111

Bidding activity — not a pass: 44.5% #42 of 111 (150/337)

Card play by contract type — on target
vs NTvs a suit
Opening leads60.0% (10)95.2% (21)
Declarer play72.7% (11)80.0% (15)
Defence81.8% (11)93.9% (49)

Opening leads by suit led: ♠ 87.5% (8) · ♥ 66.7% (9) · ♦ 75.0% (4) · ♣ 100.0% (10)

vs par by strain: NT -0.13 (30) · a suit +0.23 (90)

vs par by level: part-score -0.87 (45) · game +1.01 (65) · slam -1.00 (10)

By role: declaring +0.05/bd (-2.30 vs par · 60) · defending +0.68/bd (+2.58 vs par · 60)

By vulnerability: vulnerable +0.35/bd (+0.08 vs par · 60) · not vulnerable +0.37/bd (+0.20 vs par · 60)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1X.LiuD.Jansons – R.KreitalsClosed8-1.7-0.21+0.88
Round 2X.LiuF.Nacrur – P.CazabonClosed8-1.4-0.17+1.00
Round 3X.LiuP.Beer – H.XingOpen8+9.0+1.12+0.12
Round 4X.LiuN.Tiscornia Biaus – I.Miquelez CaballeroOpen8+1.6+0.20-0.25
Round 5X.LiuA.Yeung – Y.HuangOpen8+8.9+1.11+2.00
Round 6X.LiuA.Huang – J.MiddletonClosed8-26.3-3.29-3.88
Round 8X.LiuC.Chiang – Y.ChengClosed8+19.8+2.48+4.75
Round 9X.LiuP.Bedouet – C.DeheegerClosed8-12.8-1.60-3.88
Round 10X.LiuO.Powell – A.HuttonOpen8+19.6+2.45+3.00
Round 11X.LiuA.Manganella – S.ScataClosed8+4.1+0.51-1.25
Round 14X.LiuZ.Ferov – D.LazarovClosed8-17.5-2.19-1.38
Round 15Z.ChuA.Casparie – M.SprinkhuizenOpen8+10.9+1.36-1.88
Round 17X.LiuT.Kielbasa – B.BejenkaOpen8+11.9+1.49+2.62
Round 18X.LiuM.Simic – S.PepicOpen8-1.1-0.14-1.50
Round 19X.LiuD.Nobira – D.RahayuClosed8+18.3+2.29+1.75

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
+10.5Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND136♣♥K-1+20
+9.3Round 15🇳🇱 NETHERLANDS205♠x♦Q-3+5
+8.5Round 18🇷🇸 SERBIA123NTx♥2=+4
+7.6Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND125♠♣8-2+7
+7.4Round 8🇹🇼 CHINESE TAIPEI286♠♥5-2+14
+6.9Round 8🇹🇼 CHINESE TAIPEI314♠♦6-1+10
+6.7Round 8🇹🇼 CHINESE TAIPEI274♠♣2=+0
+6.2Round 11🇮🇹 ITALY233NT♦J=-1
+5.9Round 1🇱🇻 LATVIA15♦♣6=-1
+5.8Round 6🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND103NT♠3+2+2
+5.5Round 4🇦🇷 ARGENTINA254♠♥T+1+1
+5.4Round 8🇹🇼 CHINESE TAIPEI252♥♠2+2+8
+4.8Round 2🇨🇱 CHILE144♠♣5-1+4
+4.8Round 19🇮🇩 INDONESIA183♥♦6+1+2
+4.8Round 19🇮🇩 INDONESIA234♠♥K+2-12
+4.7Round 19🇮🇩 INDONESIA221NT♣6=+6
+4.6Round 3🇺🇸 USA1241♠♥2+2+0
+4.5Round 17🇵🇱 POLAND25♣♦A-1+5
+4.4Round 4🇦🇷 ARGENTINA274♥♠Q-1+10
+4.2Round 3🇺🇸 USA1174♥♣5-1+5
+4.1Round 2🇨🇱 CHILE113♠x♣A-2-3
+4.1Round 17🇵🇱 POLAND75♥x♣A-2+8
+4.1Round 19🇮🇩 INDONESIA212♠♥2+1+1
+3.2Round 1🇱🇻 LATVIA84♥♠9-1+10
+3.1Round 18🇷🇸 SERBIA143♣♠5-1-2
+3.0Round 14🇧🇬 BULGARIA161NT♥Q+2+10
+2.7Round 11🇮🇹 ITALY213NT♠K-1+5
+2.5Round 1🇱🇻 LATVIA22♠♣6+1+0
+2.5Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND151NT♠Q+1+1
+2.3Round 11🇮🇹 ITALY245♦♠A-1+10
+2.3Round 15🇳🇱 NETHERLANDS183♠♦2=+0
+2.2Round 4🇦🇷 ARGENTINA312♥♠5-1+4
+2.2Round 8🇹🇼 CHINESE TAIPEI324♥♠A+1+10
+2.1Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND113NT♦5+2+0
+2.0Round 17🇵🇱 POLAND42♥♣J-1-1
+1.9Round 3🇺🇸 USA1234♥♣Q+1+0
+1.9Round 5🇺🇸 USA282♥♠K=+0
+1.8Round 5🇺🇸 USA253♥♠5+1-4
+1.8Round 17🇵🇱 POLAND64♥♠K=+0
+1.7Round 2🇨🇱 CHILE124♥♠A-1+5
+1.7Round 9🇫🇷 FRANCE62♥♦A=+6
+1.6Round 2🇨🇱 CHILE154♠♥7-1+10
+1.6Round 5🇺🇸 USA213♠♥8-2+5
+1.6Round 19🇮🇩 INDONESIA194♥♣K-1+16
+1.5Round 11🇮🇹 ITALY171NT♣Q+1-1
+1.5Round 15🇳🇱 NETHERLANDS243NT♣K+1+0
+1.3Round 4🇦🇷 ARGENTINA326NT♣6=-11
+1.3Round 5🇺🇸 USA225♣x♥2-1+6
+1.3Round 5🇺🇸 USA262♠♥J+1+10
+1.2Round 3🇺🇸 USA1212♣♦T-3+1
+1.2Round 9🇫🇷 FRANCE53NT♠4-1+5
+1.2Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND96♠♣A=+0
+1.2Round 11🇮🇹 ITALY193NT♣6=+0
+1.2Round 15🇳🇱 NETHERLANDS233♠♦2-1-11
+0.9Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND165♣♦A-2-5
+0.8Round 14🇧🇬 BULGARIA124♠♥3=+1
+0.7Round 5🇺🇸 USA274♠♦6=+0
+0.6Round 6🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND161NT♦K-1+2
+0.6Round 17🇵🇱 POLAND14♠♥Q+2+11
+0.6Round 17🇵🇱 POLAND33♣♥5-1-4
+0.5Round 1🇱🇻 LATVIA61NT♥5+1+1
+0.5Round 3🇺🇸 USA1223NT♥8=+0
+0.4Round 5🇺🇸 USA243♥♣3-1-1
+0.1Round 3🇺🇸 USA1203NT♦5+1+1
+0.1Round 4🇦🇷 ARGENTINA295♦♣9=-2
+0.1Round 6🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND122♠♣6=-5
+0.1Round 11🇮🇹 ITALY202NT♥Q=+0
+0.1Round 15🇳🇱 NETHERLANDS194♠♥K=-1
+0.0Round 8🇹🇼 CHINESE TAIPEI304♠♣A+1+0
+0.0Round 14🇧🇬 BULGARIA134♠♣6=+1
-0.1Round 1🇱🇻 LATVIA73NT♣J+1+0
-0.1Round 5🇺🇸 USA234♠♦2=+0
-0.1Round 19🇮🇩 INDONESIA204♠♦6=+1
-0.3Round 2🇨🇱 CHILE133♥♣A-1+1
-0.3Round 19🇮🇩 INDONESIA174♠♦Q+1+0
-0.4Round 1🇱🇻 LATVIA33♠♣K=+0
-0.4Round 18🇷🇸 SERBIA163NT♠4-1-5
-0.5Round 6🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND112♥♣Q=+0
-0.5Round 15🇳🇱 NETHERLANDS223NT♣9+3-1
-0.5Round 18🇷🇸 SERBIA114♠♦2+1+0
-0.6Round 3🇺🇸 USA1192♠♦J=+0
-0.6Round 15🇳🇱 NETHERLANDS214♥♦K=+0
-0.7Round 2🇨🇱 CHILE94♠♣6=+0
-0.7Round 17🇵🇱 POLAND54NT♣K=+1
-0.9Round 14🇧🇬 BULGARIA152♥♠K-2-1
-0.9Round 18🇷🇸 SERBIA152♥♦Q-4-10
-1.0Round 17🇵🇱 POLAND81NT♣T=+1
-1.1Round 8🇹🇼 CHINESE TAIPEI294♠♦3=+1
-1.2Round 9🇫🇷 FRANCE84♠♥K-1-5
-1.3Round 9🇫🇷 FRANCE14♠♥2-1-10
-1.3Round 19🇮🇩 INDONESIA243♦♣Q+1+0
-1.5Round 9🇫🇷 FRANCE71♠♣A+1-6
-1.5Round 18🇷🇸 SERBIA94♥♠J+1-11
-2.1Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND143♣♥6-2+1
-2.4Round 9🇫🇷 FRANCE33♠♣K=-6
-2.4Round 11🇮🇹 ITALY186♦♥K-1-12
-2.4Round 15🇳🇱 NETHERLANDS172NT♣3=-7
-2.6Round 1🇱🇻 LATVIA55♠♥T-1+9
-2.7Round 2🇨🇱 CHILE161NT♥Q+1+0
-2.7Round 9🇫🇷 FRANCE44♥♦Q-2-8
-2.9Round 3🇺🇸 USA1183♦♥K+1-6
-2.9Round 14🇧🇬 BULGARIA91NT♠4+1+0
-3.1Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND106♠x♣K-2+0
-3.6Round 4🇦🇷 ARGENTINA262♦♥Q+1-11
-3.6Round 18🇷🇸 SERBIA134♥♠4+1+0
-3.9Round 4🇦🇷 ARGENTINA303NT♣T-1-4
-4.4Round 4🇦🇷 ARGENTINA286♣♥2+1+11
-4.5Round 14🇧🇬 BULGARIA114♠♣3=-3
-4.6Round 14🇧🇬 BULGARIA103♠♣A-1-11
-5.0Round 6🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND153NT♥3+2-1
-5.8Round 18🇷🇸 SERBIA104♠♥6+1+12
-6.6Round 9🇫🇷 FRANCE23NT♣3=-7
-7.5Round 11🇮🇹 ITALY226♠♣A-1-11
-7.7Round 8🇹🇼 CHINESE TAIPEI263NT♣5-3-5
-8.4Round 14🇧🇬 BULGARIA146♦x♥2-4-8
-8.6Round 6🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND95♦x♠A-2-5
-8.8Round 6🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND145♦♣8+1-11
-9.9Round 2🇨🇱 CHILE104♦x♣A-2-9
-9.9Round 6🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND136♥♣6=-13
-10.7Round 1🇱🇻 LATVIA45♣x♠K-3-12