🇸🇬 SIEW Kheng Hun · SINGAPORE

51rank
+26.8Butler · 154 bds
+0.17per board
±5.0swing
-0.05vs par /bd · #59/99
+0.12adjusted /bd
Butler per round: 1.2 -12.7 -4.2 5.6 1.1 23 14.3 -38.9 29.7 6.9 0.8by round

vs par split: bidding +0.08 · play -0.13

Strength of schedule: opponents averaged -0.06/bd (an easy draw) → opponent-adjusted +0.12/bd

Card play — on target: opening leads 82.1% #21 of 99 · declarer play 77.1% #33 of 99 · defence 86.6% #39 of 99

Card play by contract type — on target
vs NTvs a suit
Opening leads90.9% (11)78.6% (28)
Declarer play71.4% (14)79.4% (34)
Defence93.3% (15)84.6% (52)

Opening leads by suit led: ♠ 80.0% (10) · ♥ 85.7% (7) · ♦ 75.0% (12) · ♣ 90.0% (10)

vs par by strain: NT +0.37 (41) · a suit -0.20 (113)

vs par by level: part-score -0.02 (57) · game +0.06 (84) · slam -0.85 (13)

By role: declaring +0.18/bd (-1.99 vs par · 87) · defending +0.17/bd (+2.48 vs par · 67)

By vulnerability: vulnerable -0.63/bd (-0.29 vs par · 77) · not vulnerable +0.98/bd (+0.20 vs par · 77)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1G.YangY.Caris – P.DupontClosed14+1.2+0.09-2.50
Round 2G.YangF.Alter – L.StreckOpen14-12.7-0.91-1.71
Round 4G.YangV.Ildeikins – E.GavrilovaClosed14-4.2-0.30+0.29
Round 5G.YangN.Davila – C.SmithClosed14+5.6+0.40+3.79
Round 7G.YangM.Christensen – S.BuneClosed14+1.1+0.08+1.00
Round 8G.YangT.Irby – G.CacaceOpen14+23.0+1.64+2.57
Round 10G.YangA.Sandin – S.ClementssonOpen14+14.3+1.02+0.86
Round 11G.YangN.Chang – C.SpencerClosed14-38.9-2.78-4.43
Round 13G.YangO.Toledano – A.YekutieliOpen14+29.7+2.12+2.79
Round 15G.YangS.Maczka – L.TrendakClosed14+6.9+0.49-1.79
Round 16G.YangC.Chan – J.TsangOpen14+0.8+0.06-1.36

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
+13.1Round 1🇳🇱 NETHERLANDS47♦♦8=-2
+11.1Round 10🇸🇪 SWEDEN183NT♥6+1+10
+11.1Round 15🇵🇱 POLAND63NTx♠2+2+11
+10.1Round 13🇮🇱 ISRAEL85♣♣6-1+11
+9.6Round 5🇨🇱 CHILE173NT♠3-2+14
+9.4Round 8🇧🇲 BERMUDA144♥♣3=+11
+9.0Round 13🇮🇱 ISRAEL76♣♦5-2+12
+8.4Round 5🇨🇱 CHILE226NT♠4-2+11
+8.1Round 13🇮🇱 ISRAEL14♠x♥Q=+5
+7.8Round 1🇳🇱 NETHERLANDS84♠♥10=+3
+7.4Round 10🇸🇪 SWEDEN205♣♠7=+0
+7.2Round 7🇩🇰 DENMARK247♠♣2=+0
+6.9Round 13🇮🇱 ISRAEL23NT♥5-2+12
+6.8Round 8🇧🇲 BERMUDA24♥♦K-1+9
+6.5Round 8🇧🇲 BERMUDA73♠♠5+2+10
+6.3Round 2🇩🇪 GERMANY253NT♥3+3+14
+6.2Round 5🇨🇱 CHILE284♥♣6+1+1
+6.1Round 1🇳🇱 NETHERLANDS123NT♣5-1+6
+6.1Round 7🇩🇰 DENMARK174♥x♥3-1+5
+6.1Round 11🇺🇸 USA114♥♠2=+8
+6.1Round 16🇭🇰 CHINA HONG KONG183NT♠6+1+7
+6.0Round 13🇮🇱 ISRAEL113♥♣9+3+13
+5.5Round 7🇩🇰 DENMARK203♠♠A+2+10
+5.5Round 8🇧🇲 BERMUDA13♠x♦9-2+4
+5.4Round 10🇸🇪 SWEDEN256NT♥3+1-11
+5.3Round 2🇩🇪 GERMANY192♠♦9+2+6
+5.2Round 2🇩🇪 GERMANY164♥♦A+1+4
+4.4Round 13🇮🇱 ISRAEL104♠♥A-1+12
+4.3Round 4🇱🇻 LATVIA144♠♦K-1+8
+3.9Round 4🇱🇻 LATVIA63♦♣Q-2+7
+3.6Round 16🇭🇰 CHINA HONG KONG274♠♦A=+0
+3.4Round 4🇱🇻 LATVIA42♥♠6-1+0
+3.4Round 16🇭🇰 CHINA HONG KONG204♠x♥7-1+8
+3.3Round 16🇭🇰 CHINA HONG KONG214♥♦9+2-11
+3.2Round 7🇩🇰 DENMARK286♣♥Q+1+13
+3.2Round 10🇸🇪 SWEDEN195♥♦4=+2
+3.2Round 13🇮🇱 ISRAEL123NT♦A+1+0
+3.2Round 16🇭🇰 CHINA HONG KONG223NT♣7+2+1
+3.1Round 15🇵🇱 POLAND83♣♦6+1+1
+3.0Round 4🇱🇻 LATVIA11NT♥9+1+1
+2.9Round 7🇩🇰 DENMARK154♥♠3+1+0
+2.9Round 7🇩🇰 DENMARK263♠♥A-3+8
+2.8Round 8🇧🇲 BERMUDA63♥♦2-3-10
+2.4Round 8🇧🇲 BERMUDA93NT♣Q-1+5
+2.3Round 13🇮🇱 ISRAEL93NT♦3-1+5
+2.2Round 4🇱🇻 LATVIA84♣♥5=+1
+2.2Round 10🇸🇪 SWEDEN174♥♥2=+3
+2.1Round 5🇨🇱 CHILE196NT♣9+1+1
+2.1Round 5🇨🇱 CHILE244♠♣A-1+5
+2.1Round 15🇵🇱 POLAND73♦♥10+1+0
+2.1Round 15🇵🇱 POLAND142♠♣A=+0
+2.0Round 8🇧🇲 BERMUDA84♥♦A+1+1
+1.9Round 1🇳🇱 NETHERLANDS33NT♣Q+2+1
+1.6Round 2🇩🇪 GERMANY175♣♠J=-11
+1.6Round 8🇧🇲 BERMUDA52♠♥A-1+0
+1.6Round 11🇺🇸 USA43♥♥6-1+5
+1.5Round 15🇵🇱 POLAND23NT♦7+2+0
+1.5Round 16🇭🇰 CHINA HONG KONG163NT♣7=-1
+1.5Round 16🇭🇰 CHINA HONG KONG171NT♠2+1+0
+1.4Round 16🇭🇰 CHINA HONG KONG253NT♥4-2+5
+1.3Round 5🇨🇱 CHILE202♠♣10+1+10
+1.1Round 4🇱🇻 LATVIA113♥♣J=+1
+1.1Round 15🇵🇱 POLAND124♠x♥A-3+4
+0.8Round 1🇳🇱 NETHERLANDS64♠♦K-1-12
+0.8Round 2🇩🇪 GERMANY273NT♠3+2+0
+0.6Round 10🇸🇪 SWEDEN243♣♦A-1-2
+0.6Round 16🇭🇰 CHINA HONG KONG244♦♠K+2+13
+0.5Round 1🇳🇱 NETHERLANDS103♥♦J=+1
+0.5Round 4🇱🇻 LATVIA21NT♠9=-1
+0.5Round 5🇨🇱 CHILE274♠♣Q=+3
+0.5Round 10🇸🇪 SWEDEN212♥♠K=+0
+0.5Round 10🇸🇪 SWEDEN264♥♣A=+0
+0.5Round 11🇺🇸 USA74♥♣A+1-13
+0.4Round 2🇩🇪 GERMANY154♠♥Q+1+0
+0.4Round 15🇵🇱 POLAND92♠♦7+2-8
+0.3Round 13🇮🇱 ISRAEL144♥♥2=-1
+0.2Round 2🇩🇪 GERMANY213♥♠Q-2+0
+0.1Round 2🇩🇪 GERMANY283NT♠4+2-11
+0.1Round 7🇩🇰 DENMARK162♠♦9=+0
+0.1Round 8🇧🇲 BERMUDA44♠♦Q+1+0
+0.1Round 8🇧🇲 BERMUDA123NT♠8+1+1
+0.1Round 10🇸🇪 SWEDEN233♠♥6-1+9
+0.1Round 11🇺🇸 USA63♣♥K=+1
-0.0Round 13🇮🇱 ISRAEL54♥♠4=-1
-0.0Round 15🇵🇱 POLAND44♥♦5+1+0
-0.1Round 2🇩🇪 GERMANY243♠♣J=+0
-0.2Round 11🇺🇸 USA53NT♣Q+1+0
-0.2Round 16🇭🇰 CHINA HONG KONG264♠♥K+2-13
-0.4Round 10🇸🇪 SWEDEN153NT♥2=+10
-0.4Round 10🇸🇪 SWEDEN274♥♣K+1+0
-0.4Round 15🇵🇱 POLAND102♦♦6+2+0
-0.5Round 11🇺🇸 USA33NT♥4+2+0
-0.5Round 16🇭🇰 CHINA HONG KONG283NT♣4+2+0
-0.6Round 4🇱🇻 LATVIA122♠♥8-1+1
-0.6Round 5🇨🇱 CHILE263NT♠3-1+9
-0.6Round 7🇩🇰 DENMARK182NT♣9=-1
-0.6Round 16🇭🇰 CHINA HONG KONG193NT♥2=+0
-0.7Round 4🇱🇻 LATVIA33NT♣2+2+0
-0.8Round 13🇮🇱 ISRAEL33♣♣8=+0
-0.8Round 15🇵🇱 POLAND134♥♠10=-3
-0.9Round 8🇧🇲 BERMUDA105♣♠10=+13
-0.9Round 11🇺🇸 USA143♦♦5-1+3
-1.3Round 15🇵🇱 POLAND33♣♠K+1-10
-1.4Round 4🇱🇻 LATVIA93♦♦A-1+0
-1.4Round 7🇩🇰 DENMARK273♠♦4=+0
-1.5Round 15🇵🇱 POLAND15♣x♣4-3-2
-1.6Round 1🇳🇱 NETHERLANDS132♥♦8+1+0
-1.6Round 5🇨🇱 CHILE165♣♥A+1+11
-1.6Round 7🇩🇰 DENMARK193♣♦A=+0
-1.9Round 13🇮🇱 ISRAEL134♠♥9+1-13
-2.1Round 5🇨🇱 CHILE213NT♣Q+1+0
-2.2Round 1🇳🇱 NETHERLANDS113♥♠5=+0
-2.2Round 1🇳🇱 NETHERLANDS145♦x♥A-2-9
-2.2Round 8🇧🇲 BERMUDA134♠♦K-1+9
-2.5Round 4🇱🇻 LATVIA132♥♥A-3+7
-2.6Round 11🇺🇸 USA82NT♠Q=+0
-2.8Round 4🇱🇻 LATVIA75♦♠6+1+0
-2.9Round 1🇳🇱 NETHERLANDS54♦♣K-2-6
-2.9Round 2🇩🇪 GERMANY203♦♥8-1-5
-2.9Round 10🇸🇪 SWEDEN163♥♠A=+0
-3.1Round 11🇺🇸 USA13♦♠9=-5
-3.2Round 2🇩🇪 GERMANY184♥♣10-2-6
-3.2Round 5🇨🇱 CHILE232♠♣Q+1-1
-3.4Round 5🇨🇱 CHILE253♠♥A=+0
-3.7Round 1🇳🇱 NETHERLANDS94♠♦K+1+0
-3.8Round 7🇩🇰 DENMARK226♠♣J=+11
-3.9Round 8🇧🇲 BERMUDA114♥♥6-6-10
-4.2Round 11🇺🇸 USA21NT♠7=-11
-4.4Round 13🇮🇱 ISRAEL44♠♣6=+0
-4.6Round 7🇩🇰 DENMARK253NT♠5=-11
-4.8Round 1🇳🇱 NETHERLANDS14♥♦4=-1
-5.1Round 2🇩🇪 GERMANY224♠x♥2-1-8
-5.1Round 15🇵🇱 POLAND114♥♥Q-1-11
-5.3Round 7🇩🇰 DENMARK216♠♦Q-1-13
-5.4Round 15🇵🇱 POLAND52♦♥A-3-7
-5.7Round 1🇳🇱 NETHERLANDS73♥♣K=-8
-5.8Round 5🇨🇱 CHILE186♦♦6=+0
-5.9Round 1🇳🇱 NETHERLANDS24♥♠K=-8
-6.2Round 11🇺🇸 USA94♠♥A-2-11
-6.5Round 10🇸🇪 SWEDEN222♠♣8+1+0
-6.5Round 10🇸🇪 SWEDEN281NTx♥A-3-9
-6.6Round 4🇱🇻 LATVIA103♥♠2+2-9
-7.2Round 8🇧🇲 BERMUDA35♦♥J=-7
-7.9Round 5🇨🇱 CHILE154♠♦K-3-11
-8.0Round 4🇱🇻 LATVIA53♥♠K=-12
-8.1Round 11🇺🇸 USA101NTx♠4-1-8
-8.2Round 16🇭🇰 CHINA HONG KONG154♠♠Q=-13
-8.5Round 2🇩🇪 GERMANY265♥♠A-1-7
-9.5Round 7🇩🇰 DENMARK235♦♣K-2-8
-9.9Round 11🇺🇸 USA136♥♦3-2-17
-11.5Round 11🇺🇸 USA123NTx♠3-2-14
-12.8Round 2🇩🇪 GERMANY237♥♦Q=+0
-13.5Round 13🇮🇱 ISRAEL67NTx♥4-3-16
-14.3Round 16🇭🇰 CHINA HONG KONG233NTx♠K-4-15