🇸🇬 KOH Kenneth · SINGAPORE

66rank
-87.4Butler · 192 bds
-0.46per board
±4.6swing
-1.07vs par /bd · #77/88
-0.40adjusted /bd
Butler per round: -28.4 -35.4 1.7 -13.9 -1.3 15.3 31.9 -17.1 -20.3 -19.2 -0.9 0.2by round

vs par split: bidding -0.55 · play -0.52

Strength of schedule: opponents averaged +0.06/bd (a tough draw) → opponent-adjusted -0.40/bd

Card play — on target: opening leads 80.0% #24 of 88 · declarer play 61.4% #75 of 88 · defence 83.3% #43 of 88

Card play by contract type — on target
vs NTvs a suit
Opening leads75.0% (4)80.8% (26)
Declarer play65.0% (20)59.5% (37)
Defence76.2% (21)85.7% (63)

Opening leads by suit led: ♠ 85.7% (7) · ♥ 62.5% (8) · ♦ 100.0% (8) · ♣ 71.4% (7)

vs par by strain: NT -1.18 (57) · a suit -1.02 (135)

vs par by level: part-score -0.94 (69) · game -1.25 (110) · slam -0.23 (13)

By role: declaring -0.47/bd (-3.07 vs par · 108) · defending -0.43/bd (+1.51 vs par · 84)

By vulnerability: vulnerable -0.81/bd (-1.92 vs par · 96) · not vulnerable -0.10/bd (-0.22 vs par · 96)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1H.TeoA.Kaplan – Z.BrescollClosed16-28.4-1.77-3.19
Round 2H.TeoD.Soukup – H.BerkClosed16-35.4-2.21-5.50
Round 4H.TeoG.Dreimanis – J.IlzinsClosed16+1.7+0.11+0.38
Round 6H.TeoA.Reiter – I.GinossarOpen16-13.9-0.87-3.00
Round 7H.TeoH.Wei – J.YinClosed16-1.3-0.08+0.62
Round 9H.TeoF.Charignon – G.LafontOpen16+15.3+0.96+3.25
Round 10H.TeoN.Sengiali – A.ArgainClosed16+31.9+1.99+1.94
Round 12H.TeoM.Gulczynski – M.KlukowskiOpen16-17.1-1.07-1.50
Round 13H.TeoK.Matsuda – A.TakatsujiOpen16-20.3-1.27-2.06
Round 15H.TeoA.Pruna – A.RaccaClosed16-19.2-1.20-3.00
Round 16H.TeoA.Roberts – S.ShahClosed16-0.9-0.06-0.94
Round 17H.TeoR.Cooper – D.BraunClosed16+0.2+0.01+0.19

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
+15.9Round 10🇦🇷 ARGENTINA114♣x♦9-6+14
+11.8Round 15🇮🇹 ITALY43♠x♦A+3+12
+11.0Round 10🇦🇷 ARGENTINA154♥♣A-3+11
+10.3Round 1🇺🇸 USA156♥♣9-1+13
+9.2Round 2🇺🇸 USA2125♦♥Q+1+14
+8.9Round 4🇱🇻 LATVIA165♦x♣Q-2+13
+8.7Round 9🇫🇷 FRANCE133NT♠A=+10
+7.5Round 17🇦🇺 AUSTRALIA14♠♥3=+11
+7.1Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND25♥♣4-1+12
+6.6Round 2🇺🇸 USA2134♠♠7+1+1
+6.5Round 12🇵🇱 POLAND134♠♦10=+0
+6.4Round 2🇺🇸 USA234♠♥9-2+7
+6.3Round 4🇱🇻 LATVIA123♦♣4=+7
+6.3Round 10🇦🇷 ARGENTINA74♥♣J-1+12
+6.3Round 17🇦🇺 AUSTRALIA83NT♥3-2+6
+6.1Round 1🇺🇸 USA1104♥♦9+1+0
+6.1Round 1🇺🇸 USA1123NT♥2=-1
+6.1Round 9🇫🇷 FRANCE54♠x♣A=+5
+5.9Round 4🇱🇻 LATVIA94♥♠K=+0
+5.9Round 7🇨🇳 CHINA95♦♥A-1+12
+5.7Round 13🇯🇵 JAPAN163NT♦3=-1
+5.7Round 17🇦🇺 AUSTRALIA43NT♥2=+0
+5.4Round 10🇦🇷 ARGENTINA83NT♥5=+7
+5.3Round 10🇦🇷 ARGENTINA144♦♣A-1+9
+5.2Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND16♥x♠K-2+5
+5.1Round 7🇨🇳 CHINA155♥x♦K-1+11
+4.9Round 15🇮🇹 ITALY145♦♣Q=-1
+4.8Round 10🇦🇷 ARGENTINA54♠♥K-1+6
+4.7Round 7🇨🇳 CHINA11NT♠2+1+6
+4.7Round 12🇵🇱 POLAND94♥♦A-1+11
+4.4Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND162♥♣A-1+5
+4.3Round 9🇫🇷 FRANCE43NT♥10-1+12
+4.1Round 6🇮🇱 ISRAEL161NT♠5-1+6
+4.0Round 7🇨🇳 CHINA104♠♥A+1+0
+3.9Round 6🇮🇱 ISRAEL144♠x♦A-2-4
+3.9Round 9🇫🇷 FRANCE23♠♣2-1+6
+3.9Round 12🇵🇱 POLAND124♥♥8=-1
+3.7Round 13🇯🇵 JAPAN133♣♦9=+6
+3.3Round 9🇫🇷 FRANCE34NT♦Q-3+6
+3.1Round 9🇫🇷 FRANCE74♥♥K-1+13
+3.1Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND114♥♠2+2-11
+3.0Round 17🇦🇺 AUSTRALIA153NT♥3+1+0
+2.7Round 13🇯🇵 JAPAN73♦♥K-2-9
+2.4Round 7🇨🇳 CHINA63NT♠2=+7
+2.3Round 10🇦🇷 ARGENTINA33♥♦9+1+6
+2.1Round 9🇫🇷 FRANCE63NT♣6-2+6
+2.1Round 9🇫🇷 FRANCE115♣x♦2-2+5
+2.1Round 13🇯🇵 JAPAN121NT♠Q=+5
+1.9Round 4🇱🇻 LATVIA72♦♣3+2+1
+1.9Round 7🇨🇳 CHINA125♣x♥K-1+6
+1.9Round 13🇯🇵 JAPAN102♠♠6-1+0
+1.9Round 15🇮🇹 ITALY104♥♠6+1+0
+1.9Round 17🇦🇺 AUSTRALIA144♥♥3+1+4
+1.8Round 4🇱🇻 LATVIA135♦♠J=+2
+1.8Round 7🇨🇳 CHINA75♦♣A-3-4
+1.8Round 17🇦🇺 AUSTRALIA74♥♥3-2+12
+1.7Round 4🇱🇻 LATVIA102♥♣K-1+0
+1.7Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND123NT♦2=+0
+1.4Round 7🇨🇳 CHINA36NT♠7+1+13
+1.3Round 1🇺🇸 USA143NT♦10+2+0
+1.3Round 17🇦🇺 AUSTRALIA132♠♥3=-1
+1.2Round 12🇵🇱 POLAND23♣♣5=+0
+1.1Round 9🇫🇷 FRANCE152♠♠6=-1
+1.1Round 15🇮🇹 ITALY62♦♠9+1+0
+0.9Round 4🇱🇻 LATVIA13NT♠2=+1
+0.9Round 7🇨🇳 CHINA113NT♣7+2+0
+0.9Round 10🇦🇷 ARGENTINA94♥♠8+1+0
+0.9Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND84♥♣K=+0
+0.8Round 1🇺🇸 USA163NT♠Q+1+0
+0.8Round 13🇯🇵 JAPAN33NT♠3+2+1
+0.8Round 15🇮🇹 ITALY94♠♣3+3-2
+0.6Round 10🇦🇷 ARGENTINA101NT♠5+2+1
+0.5Round 4🇱🇻 LATVIA114♥x♦A-1-7
+0.5Round 6🇮🇱 ISRAEL64♥♣8+1-11
+0.5Round 6🇮🇱 ISRAEL101♠♠7+2+0
+0.5Round 12🇵🇱 POLAND43♠♥J=+0
+0.5Round 13🇯🇵 JAPAN55♥♠10=+0
+0.5Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND43NT♦7+1-1
+0.4Round 6🇮🇱 ISRAEL81NT♠6-1-4
+0.4Round 6🇮🇱 ISRAEL111NT♣3=-2
+0.3Round 15🇮🇹 ITALY151NT♥2+1+1
+0.3Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND34♥♠J-1-2
+0.2Round 4🇱🇻 LATVIA43NT♥7-1-6
+0.2Round 6🇮🇱 ISRAEL92♥♦10-1+1
+0.2Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND145♣♠J-1-14
+0.1Round 17🇦🇺 AUSTRALIA94♥♥3=+0
-0.1Round 10🇦🇷 ARGENTINA162♦♣A=-1
-0.1Round 12🇵🇱 POLAND84♠♥K-2-7
-0.3Round 6🇮🇱 ISRAEL123NT♥3+1+1
-0.3Round 9🇫🇷 FRANCE93♦♦J+1+0
-0.3Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND62♦x♥9-3+12
-0.3Round 17🇦🇺 AUSTRALIA114♣♥2-4+5
-0.4Round 13🇯🇵 JAPAN154♥♠A+2-1
-0.5Round 15🇮🇹 ITALY23NT♥7-2-6
-0.6Round 2🇺🇸 USA263♠♥5+1-6
-0.6Round 15🇮🇹 ITALY162NT♠7+1-6
-0.7Round 2🇺🇸 USA2112♥♥5+2+6
-0.7Round 15🇮🇹 ITALY73♠♥A-1-6
-0.9Round 4🇱🇻 LATVIA24♠♣J+1+0
-0.9Round 6🇮🇱 ISRAEL35♥♦A+1-1
-0.9Round 12🇵🇱 POLAND15♣x♥A-2+0
-0.9Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND153NT♣4+1+0
-0.9Round 17🇦🇺 AUSTRALIA35♥♥3+1-12
-1.0Round 9🇫🇷 FRANCE143NT♥9+3+11
-1.3Round 6🇮🇱 ISRAEL132♠♣2=-1
-1.3Round 7🇨🇳 CHINA42♦♦J+3+0
-1.3Round 7🇨🇳 CHINA141NT♥3+1-7
-1.3Round 10🇦🇷 ARGENTINA13NT♠7-7-2
-1.4Round 2🇺🇸 USA255♦♠Q=-16
-1.4Round 9🇫🇷 FRANCE123NT♠3+4-10
-1.5Round 4🇱🇻 LATVIA83♥♦K+1+6
-1.5Round 7🇨🇳 CHINA163♠♦K-1+2
-1.5Round 9🇫🇷 FRANCE106NT♣10=+0
-1.5Round 12🇵🇱 POLAND163♥♠7=+0
-1.5Round 15🇮🇹 ITALY84♥♥2=-3
-1.5Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND134♥♠J-4+6
-1.6Round 4🇱🇻 LATVIA36♥♦Q=+13
-1.6Round 10🇦🇷 ARGENTINA132♠♥10+1+0
-1.6Round 12🇵🇱 POLAND54♥♣Q-4+9
-1.6Round 13🇯🇵 JAPAN141NT♦2-2+0
-1.7Round 1🇺🇸 USA193♠♣3-1-5
-1.8Round 13🇯🇵 JAPAN95NT♣Q+1-10
-1.9Round 2🇺🇸 USA214♥♠Q-3-7
-2.1Round 2🇺🇸 USA282NT♣K-2-5
-2.2Round 1🇺🇸 USA113♥♠Q-2+0
-2.2Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND93NT♥3-1-12
-2.3Round 10🇦🇷 ARGENTINA63♣♥K=-11
-2.4Round 9🇫🇷 FRANCE163NT♥10=+0
-2.4Round 10🇦🇷 ARGENTINA124♥♣A-1-6
-2.5Round 12🇵🇱 POLAND143NT♥5-1-5
-2.7Round 2🇺🇸 USA2141NT♠6+3-6
-2.7Round 6🇮🇱 ISRAEL14♣♣K=-7
-2.8Round 2🇺🇸 USA2105♣♠A=-13
-2.8Round 12🇵🇱 POLAND74♠♥5+1-13
-2.9Round 6🇮🇱 ISRAEL24♦♠4-1-6
-2.9Round 17🇦🇺 AUSTRALIA21NT♥3=-1
-3.0Round 15🇮🇹 ITALY134♠♦9-1-6
-3.1Round 6🇮🇱 ISRAEL41NT♥Q-2-3
-3.2Round 4🇱🇻 LATVIA56♠♦J+1-13
-3.3Round 2🇺🇸 USA224♠♥3+2-13
-3.3Round 9🇫🇷 FRANCE82♥♣10+1-1
-3.3Round 17🇦🇺 AUSTRALIA101♥♥3-2-3
-3.4Round 1🇺🇸 USA182♠♦A+1+0
-3.6Round 1🇺🇸 USA121NT♥Q=+0
-3.7Round 13🇯🇵 JAPAN83NT♠3=-3
-3.8Round 7🇨🇳 CHINA136♣♦4-1-7
-3.9Round 12🇵🇱 POLAND152♠♥5+2-6
-4.0Round 6🇮🇱 ISRAEL155♣♥10+1+2
-4.0Round 10🇦🇷 ARGENTINA24♠♠3+1+0
-4.0Round 13🇯🇵 JAPAN66♠♣6+1+13
-4.1Round 1🇺🇸 USA1112♠♦6-3-6
-4.1Round 17🇦🇺 AUSTRALIA123NT♥3+1-10
-4.2Round 6🇮🇱 ISRAEL73NT♦Q-1-12
-4.2Round 12🇵🇱 POLAND63♦♠Q-1+1
-4.3Round 17🇦🇺 AUSTRALIA54♥♥3=+0
-4.4Round 15🇮🇹 ITALY52♠♥6+1-1
-4.5Round 1🇺🇸 USA1151NT♠4+1-5
-4.5Round 6🇮🇱 ISRAEL52♠♥K-2-7
-4.5Round 12🇵🇱 POLAND104♥♦Q+2-1
-4.6Round 4🇱🇻 LATVIA64♠♦J+1+0
-4.6Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND53NT♥10+2-1
-4.7Round 1🇺🇸 USA132♠♠5+1+0
-4.7Round 15🇮🇹 ITALY13♠♦K-2-5
-4.8Round 12🇵🇱 POLAND115♦x♠K-2-12
-4.9Round 13🇯🇵 JAPAN22♠♥4+2-10
-5.0Round 2🇺🇸 USA276♠♦6-1-13
-5.1Round 13🇯🇵 JAPAN113NTx♣10=-4
-5.1Round 17🇦🇺 AUSTRALIA163♥x♥3-2-8
-5.8Round 1🇺🇸 USA1146♦♠A-2-11
-5.8Round 7🇨🇳 CHINA54♥x♠9-1-7
-6.5Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND104♥♣K+2-1
-6.5Round 17🇦🇺 AUSTRALIA66♥♥3=+0
-6.6Round 15🇮🇹 ITALY126NT♥10+1-1
-6.7Round 2🇺🇸 USA2164♥x♠A-2-5
-6.7Round 7🇨🇳 CHINA83♣♥4-1-10
-6.7Round 13🇯🇵 JAPAN14♠x♥Q=-7
-6.8Round 1🇺🇸 USA1164♥♠A-1-12
-7.1Round 1🇺🇸 USA1134♥♣2+2-13
-7.1Round 12🇵🇱 POLAND34♥♣8=+0
-7.3Round 4🇱🇻 LATVIA144♥♠K+1+0
-7.3Round 4🇱🇻 LATVIA151NTx♠J-1-11
-8.3Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND73NT♦9-2-13
-8.4Round 2🇺🇸 USA243NT♠4-3-9
-8.7Round 15🇮🇹 ITALY35♦♠3-1-12
-8.9Round 10🇦🇷 ARGENTINA47♣♥4-5-15
-9.0Round 7🇨🇳 CHINA24♠♥5-3-12
-9.1Round 1🇺🇸 USA173♦♥A-1-11
-9.3Round 2🇺🇸 USA2154♠♥3-1-12
-9.3Round 15🇮🇹 ITALY115♠x♥4-2-12
-9.5Round 9🇫🇷 FRANCE13NT♣3-1-10
-9.5Round 13🇯🇵 JAPAN44♥♠Q+1-13
-12.7Round 2🇺🇸 USA294♣x♦K=-11