🇸🇬 ONG Yisheng Kelvin · SINGAPORE

113rank
-73.8Butler · 208 bds
-0.35per board
±4.5swing
-0.35vs par /bd · #98/136
-0.42adjusted /bd
Butler per round: 7.4 -16.1 26.3 -6.1 -4.1 -11 -32.2 30.5 -19.7 -28.7 6.5 -4.1 -22.5by round

vs par split: bidding -0.60 · play +0.26

Strength of schedule: opponents averaged -0.07/bd (an easy draw) → opponent-adjusted -0.42/bd

Card play — on target: opening leads 65.7% #135 of 136 · declarer play 74.4% #82 of 136 · defence 82.9% #87 of 136

Card play by contract type — on target
vs NTvs a suit
Opening leads40.0% (20)76.6% (47)
Declarer play64.3% (14)79.3% (29)
Defence71.4% (35)88.6% (70)

Opening leads by suit led: ♠ 66.7% (24) · ♥ 61.5% (13) · ♦ 77.8% (18) · ♣ 50.0% (12)

vs par by strain: NT -0.56 (66) · a suit -0.23 (141)

vs par by level: part-score -0.41 (76) · game -0.34 (118) · slam +0.08 (13)

By role: declaring -0.39/bd (-2.35 vs par · 102) · defending -0.33/bd (+1.57 vs par · 106)

By vulnerability: vulnerable -0.69/bd (-1.28 vs par · 104) · not vulnerable -0.02/bd (+0.58 vs par · 104)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1H.YeoP.Schmidt – J.ZochowskaOpen16+7.4+0.46-0.19
Round 3H.YeoT.Elmas – B.BasaranClosed16-16.1-1.01-0.62
Round 4H.YeoF.Tambulat – S.AlrawashdehClosed16+26.3+1.64+1.25
Round 6H.YeoA.Rosenthal – D.RosenbergClosed16-6.1-0.38-0.31
Round 8H.YeoC.Krefeld – J.HammelevOpen16-4.1-0.26+0.69
Round 11H.YeoR.Benin-Barr – Y.ZackOpen16-11.0-0.69-3.38
Round 13H.YeoR.Poleschi – L.FerreroClosed16-32.2-2.01-2.56
Round 14H.YeoC.Braun – A.Spinola AsturiasClosed16+30.5+1.91+1.00
Round 15H.YeoA.Gandoglia – I.BaroniOpen16-19.7-1.23+1.06
Round 17H.YeoA.Brito – J.De CarvalhoOpen16-28.7-1.79-1.62
Round 19H.YeoA.Abu-Ghazaleh – M.HishmatOpen16+6.5+0.41+1.56
Round 20H.YeoM.Pilipovic – O.StanicicClosed16-4.1-0.26-1.50
Round 21H.YeoM.Balint – D.MoraruOpen16-22.5-1.41+0.06

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
+12.2Round 4🇯🇴 JORDAN186♠♠5-1+17
+11.0Round 19🇪🇬 EGYPT115♠♣Q-1+11
+10.1Round 4🇯🇴 JORDAN222♦x♣A-3+9
+9.5Round 14🇬🇹 GUATEMALA256♣♥5=-13
+9.0Round 19🇪🇬 EGYPT13♠x♣A-2+5
+8.9Round 14🇬🇹 GUATEMALA243NT♦3-1+11
+8.4Round 1🇫🇷 FRANCE105♦♥A=-13
+8.3Round 3🇹🇷 TURKEY155♠♥3-2+11
+8.1Round 15🇮🇹 ITALY56♠♣8=+5
+7.7Round 21🇷🇴 ROMANIA86♠♥2+1+11
+7.6Round 11🇮🇱 ISRAEL86♣♣3=+10
+7.0Round 14🇬🇹 GUATEMALA274♥♥2-1+10
+6.7Round 19🇪🇬 EGYPT74♠♦10+1+1
+6.6Round 6🇺🇸 USA 1263♠♦K+2+10
+6.3Round 14🇬🇹 GUATEMALA293♠♥A=+7
+6.2Round 1🇫🇷 FRANCE86♥♣Q=+0
+6.2Round 4🇯🇴 JORDAN194♠♥J=+0
+6.0Round 8🇩🇰 DENMARK212♠♥3+1+7
+6.0Round 21🇷🇴 ROMANIA14♥♣10=+8
+5.8Round 4🇯🇴 JORDAN294♠♦8=+0
+5.6Round 6🇺🇸 USA 1243NT♥4=+0
+5.5Round 8🇩🇰 DENMARK303NT♦Q+1+0
+4.6Round 8🇩🇰 DENMARK203♥♠J-1+6
+4.5Round 8🇩🇰 DENMARK223NT♣3=-1
+4.2Round 1🇫🇷 FRANCE33♠♥A-4+2
+4.2Round 1🇫🇷 FRANCE63NT♠K-3+6
+4.1Round 11🇮🇱 ISRAEL113♦♠3-2-1
+4.1Round 13🇦🇷 ARGENTINA26♣♥A-2+8
+4.0Round 14🇬🇹 GUATEMALA324♥♦5-4+7
+4.0Round 19🇪🇬 EGYPT83NT♣J-2+5
+3.9Round 8🇩🇰 DENMARK274♣♠3=+0
+3.7Round 4🇯🇴 JORDAN244♥♦J=+11
+3.7Round 6🇺🇸 USA 1253NT♠2-1+5
+3.6Round 4🇯🇴 JORDAN255♥♠3-1+6
+3.6Round 6🇺🇸 USA 1306♠♦10=+5
+3.6Round 14🇬🇹 GUATEMALA183♠♥6=+7
+3.5Round 20🇭🇷 CROATIA254♠♦K+1+0
+3.3Round 8🇩🇰 DENMARK283♦♥J-1+6
+3.1Round 20🇭🇷 CROATIA193NT♥10=-1
+3.0Round 8🇩🇰 DENMARK254♠♦A=+11
+3.0Round 11🇮🇱 ISRAEL63NT♥Q=-13
+3.0Round 17🇵🇹 PORTUGAL123NT♥5+1+0
+2.8Round 17🇵🇹 PORTUGAL94♦♠A-2+0
+2.7Round 1🇫🇷 FRANCE161NTx♠A-1+0
+2.7Round 20🇭🇷 CROATIA303♥♦10-3+2
+2.6Round 4🇯🇴 JORDAN175♠♦A=+1
+2.6Round 4🇯🇴 JORDAN203NT♣8+1+12
+2.6Round 11🇮🇱 ISRAEL103NT♠10+1+0
+2.6Round 20🇭🇷 CROATIA242NT♥K+1+1
+2.4Round 13🇦🇷 ARGENTINA31♥♦K+1+0
+2.3Round 6🇺🇸 USA 1293NT♠2=+0
+2.3Round 14🇬🇹 GUATEMALA264♥♦5=+0
+2.3Round 17🇵🇹 PORTUGAL143NT♠2+3+2
+2.3Round 21🇷🇴 ROMANIA96NT♣J=+0
+2.2Round 20🇭🇷 CROATIA173♣♦K+2+1
+2.2Round 20🇭🇷 CROATIA201NT♥5-2+2
+2.1Round 4🇯🇴 JORDAN282♥♣J+1+0
+2.1Round 20🇭🇷 CROATIA314♦♠Q-1+5
+2.0Round 11🇮🇱 ISRAEL24♠♥K=-15
+2.0Round 15🇮🇹 ITALY123NT♥7+3+17
+2.0Round 15🇮🇹 ITALY133♣♦10-1+5
+2.0Round 21🇷🇴 ROMANIA152♠♥2-1+0
+2.0Round 21🇷🇴 ROMANIA163NT♠K+2+0
+1.9Round 19🇪🇬 EGYPT53NT♠6+2+0
+1.8Round 1🇫🇷 FRANCE143♥♠A-1+2
+1.8Round 8🇩🇰 DENMARK264♥♦K-1+6
+1.8Round 13🇦🇷 ARGENTINA123♥♥6-1+5
+1.7Round 15🇮🇹 ITALY14Pass-3
+1.7Round 17🇵🇹 PORTUGAL44♠♥A+2-13
+1.6Round 1🇫🇷 FRANCE23♠♠4+1+10
+1.6Round 3🇹🇷 TURKEY113♦♥3=+5
+1.6Round 14🇬🇹 GUATEMALA231NT♦7+1-11
+1.6Round 20🇭🇷 CROATIA273♠♥2-1-2
+1.6Round 20🇭🇷 CROATIA321NT♥4=+5
+1.5Round 13🇦🇷 ARGENTINA42♠♥A=-1
+1.5Round 14🇬🇹 GUATEMALA204♥♥5=-1
+1.4Round 11🇮🇱 ISRAEL163♥♣6+1-4
+1.4Round 13🇦🇷 ARGENTINA93♦♥3+1+1
+1.3Round 3🇹🇷 TURKEY73♠♥3-1+5
+1.3Round 11🇮🇱 ISRAEL53♥♣K+1-1
+1.3Round 17🇵🇹 PORTUGAL24♥♦10=+0
+1.2Round 3🇹🇷 TURKEY25♦♠A-1+6
+1.1Round 14🇬🇹 GUATEMALA213NT♣3=+0
+1.0Round 6🇺🇸 USA 1312♥♠A=+1
+0.9Round 15🇮🇹 ITALY93NT♦10+1+10
+0.8Round 4🇯🇴 JORDAN311NT♥9+3-6
+0.7Round 13🇦🇷 ARGENTINA133NT♣2=-1
+0.6Round 6🇺🇸 USA 1323NT♥J+2-13
+0.6Round 8🇩🇰 DENMARK173NT♠Q+1+1
+0.6Round 20🇭🇷 CROATIA213NT♠4=+0
+0.5Round 1🇫🇷 FRANCE92NT♦10-3+6
+0.5Round 4🇯🇴 JORDAN214♠x♣K-3+0
+0.5Round 11🇮🇱 ISRAEL34♠♦J=+0
+0.5Round 13🇦🇷 ARGENTINA144♥♣7+1+0
+0.5Round 19🇪🇬 EGYPT104♥♣A=-1
+0.4Round 15🇮🇹 ITALY64♠♠3-1+5
+0.4Round 19🇪🇬 EGYPT33♥♠A=+7
+0.3Round 3🇹🇷 TURKEY55♦♠3=+2
+0.3Round 19🇪🇬 EGYPT45♥♥2=+13
+0.2Round 1🇫🇷 FRANCE124♥♣6+2+1
+0.1Round 14🇬🇹 GUATEMALA284♥♥K-1+6
+0.0Round 3🇹🇷 TURKEY14♥♦A+1+0
+0.0Round 6🇺🇸 USA 1274♥♠K+1+0
-0.0Round 19🇪🇬 EGYPT143NT♠10+1+1
-0.1Round 1🇫🇷 FRANCE154♥♣7+1+0
-0.3Round 8🇩🇰 DENMARK192♥♦2+1+0
-0.3Round 8🇩🇰 DENMARK234♥♣6+2+12
-0.3Round 17🇵🇹 PORTUGAL162♦♣K=+1
-0.5Round 14🇬🇹 GUATEMALA304♠♥6+2+11
-0.6Round 6🇺🇸 USA 1232♠♦K-1+0
-0.6Round 20🇭🇷 CROATIA283NT♥3+1+1
-0.7Round 1🇫🇷 FRANCE73NT♦7-1-6
-0.7Round 6🇺🇸 USA 1195♦♣J=+2
-0.7Round 21🇷🇴 ROMANIA132♥♠2=+0
-0.8Round 3🇹🇷 TURKEY142♠♥J+1+1
-0.8Round 3🇹🇷 TURKEY164♥♦3+1+0
-0.8Round 17🇵🇹 PORTUGAL13NT♣J+1+0
-0.8Round 17🇵🇹 PORTUGAL101NT♠K-1+0
-0.8Round 21🇷🇴 ROMANIA45♣♠A-1-3
-1.0Round 3🇹🇷 TURKEY123♥♣A-1-4
-1.0Round 3🇹🇷 TURKEY134♠♥3=+0
-1.0Round 8🇩🇰 DENMARK295♠♦3=+0
-1.0Round 20🇭🇷 CROATIA223NT♠5=-2
-1.1Round 15🇮🇹 ITALY161NT♠4+4+5
-1.1Round 19🇪🇬 EGYPT23NT♥6+1+0
-1.2Round 17🇵🇹 PORTUGAL64♠♣J+1-1
-1.3Round 3🇹🇷 TURKEY84♥♣2=-7
-1.3Round 11🇮🇱 ISRAEL144♥♣8+1+0
-1.3Round 15🇮🇹 ITALY22♠♦A+1+0
-1.4Round 14🇬🇹 GUATEMALA313♥♦J+1-6
-1.4Round 21🇷🇴 ROMANIA63NT♠10+1-7
-1.5Round 1🇫🇷 FRANCE134♥♣Q+1-1
-1.6Round 15🇮🇹 ITALY73NT♠10+3-1
-1.6Round 17🇵🇹 PORTUGAL83♠♣8-2+0
-1.7Round 4🇯🇴 JORDAN271NT♠5+1+1
-1.7Round 13🇦🇷 ARGENTINA82♣♦2+2-7
-1.8Round 15🇮🇹 ITALY34♠♥3=+0
-1.9Round 21🇷🇴 ROMANIA143NT♣J+1+11
-2.0Round 11🇮🇱 ISRAEL13♠♦9-2-5
-2.3Round 3🇹🇷 TURKEY33NT♠3-1-12
-2.3Round 6🇺🇸 USA 1173♥♠K-1-9
-2.3Round 21🇷🇴 ROMANIA52♥♠K+2+10
-2.4Round 17🇵🇹 PORTUGAL55♠♣A+2-2
-2.7Round 13🇦🇷 ARGENTINA64♠x♥A-3-4
-2.7Round 13🇦🇷 ARGENTINA163NT♥3+1-1
-2.9Round 3🇹🇷 TURKEY101NT♥3+3-2
-2.9Round 19🇪🇬 EGYPT125♣♠K-1-10
-3.0Round 1🇫🇷 FRANCE13♠♦2-1-4
-3.0Round 14🇬🇹 GUATEMALA221NT♠8+2-6
-3.0Round 19🇪🇬 EGYPT63NT♦4=+2
-3.0Round 21🇷🇴 ROMANIA25♥♠Q-2-6
-3.1Round 11🇮🇱 ISRAEL152♠♥6=-1
-3.1Round 20🇭🇷 CROATIA183NT♥5+2-8
-3.2Round 15🇮🇹 ITALY102♥♣2+1-6
-3.2Round 21🇷🇴 ROMANIA74♥♦3+1+0
-3.3Round 4🇯🇴 JORDAN233NT♠A+2-1
-3.3Round 6🇺🇸 USA 1203NT♦2=+1
-3.3Round 21🇷🇴 ROMANIA103NT♠2-2-2
-3.4Round 1🇫🇷 FRANCE54♥♠8-2+1
-3.4Round 15🇮🇹 ITALY13NT♣4=+0
-3.4Round 17🇵🇹 PORTUGAL153NT♥3+3+12
-3.5Round 13🇦🇷 ARGENTINA104♥♦9+1-1
-3.5Round 17🇵🇹 PORTUGAL114♥♦3=+0
-3.7Round 6🇺🇸 USA 1283♠♦K=-1
-3.7Round 14🇬🇹 GUATEMALA192♠♦4+1+0
-4.0Round 21🇷🇴 ROMANIA123♦♦8+1+5
-4.1Round 6🇺🇸 USA 1211NT♦5+1-7
-4.2Round 3🇹🇷 TURKEY44♠♥3=-1
-4.2Round 19🇪🇬 EGYPT162♥♦6=-12
-4.3Round 13🇦🇷 ARGENTINA151NT♠Q+2+0
-4.3Round 19🇪🇬 EGYPT153NT♣10+2-2
-4.4Round 3🇹🇷 TURKEY65♠♦K=+0
-4.5Round 8🇩🇰 DENMARK185♣♠J-3-6
-4.5Round 11🇮🇱 ISRAEL43NT♠3-4-7
-4.5Round 11🇮🇱 ISRAEL123♠♣K+1-6
-4.6Round 13🇦🇷 ARGENTINA51NT♦7=-10
-4.8Round 4🇯🇴 JORDAN325♣♦K+1-10
-4.9Round 15🇮🇹 ITALY41♥♦8+1-10
-5.0Round 15🇮🇹 ITALY84♠♠4+1-1
-5.3Round 19🇪🇬 EGYPT132♠♣3-3+5
-5.5Round 11🇮🇱 ISRAEL134♠♦K=+0
-5.7Round 6🇺🇸 USA 1225♥x♠K-1+0
-5.7Round 13🇦🇷 ARGENTINA113♥♦2+2-6
-6.0Round 20🇭🇷 CROATIA233♠♣4=-8
-6.1Round 15🇮🇹 ITALY113NT♠K=+0
-6.1Round 17🇵🇹 PORTUGAL74♠♥2+1-4
-6.3Round 1🇫🇷 FRANCE42♦♠9-2-2
-6.3Round 4🇯🇴 JORDAN262♥♦Q+2-12
-6.3Round 11🇮🇱 ISRAEL74NT♥2+1-1
-6.3Round 11🇮🇱 ISRAEL93♠♥A+1-10
-6.4Round 15🇮🇹 ITALY153NT♥Q-4-9
-6.5Round 19🇪🇬 EGYPT96♥x♣A-1+0
-6.5Round 20🇭🇷 CROATIA295♦♠10-2-8
-6.8Round 14🇬🇹 GUATEMALA174♣♣A+1-6
-7.2Round 17🇵🇹 PORTUGAL33NT♠4=-6
-7.4Round 1🇫🇷 FRANCE113NT♣A-1-5
-7.8Round 4🇯🇴 JORDAN304♠♥2-1-8
-8.0Round 8🇩🇰 DENMARK324♥♦A-1-5
-8.3Round 13🇦🇷 ARGENTINA76♥♣J-3-14
-9.1Round 6🇺🇸 USA 1183NT♠2=+1
-9.1Round 20🇭🇷 CROATIA265♦♣6-1-12
-10.1Round 3🇹🇷 TURKEY96♦x♣A-2-14
-10.6Round 8🇩🇰 DENMARK316NT♠7-1-14
-10.9Round 21🇷🇴 ROMANIA32♠♣2+3-15
-11.0Round 21🇷🇴 ROMANIA114♥x♣10+1-11
-11.1Round 13🇦🇷 ARGENTINA14♠x♠A=-10
-12.5Round 17🇵🇹 PORTUGAL135♠x♣2-2-15
-12.6Round 8🇩🇰 DENMARK244♠x♦3-5-12