🇺🇸 LIEBERMAN Joseph · USA2

58rank
-9.6Butler · 112 bds
-0.09per board
±4.3swing
-0.51vs par /bd · #89/111
-0.11adjusted /bd
Butler per round: 5.8 4.1 -8.9 -2.9 -6.1 10.8 -5.4 -3.8 -0.8 -1.2 -9.7 14.1 -5.1 -0.5by round

vs par split: bidding -0.06 · play -0.45

Strength of schedule: opponents averaged -0.02/bd (an average draw) → opponent-adjusted -0.11/bd

Card play — on target: opening leads 81.8% #46 of 111 · declarer play 60.0% #102 of 111 · defence 86.0% #43 of 111

Bidding activity — not a pass: 47.4% #17 of 111 (146/308)

Card play by contract type — on target
vs NTvs a suit
Opening leads80.0% (5)82.4% (17)
Declarer play30.0% (10)80.0% (15)
Defence76.9% (13)89.2% (37)

Opening leads by suit led: ♠ 85.7% (7) · ♥ 40.0% (5) · ♦ 100.0% (6) · ♣ 100.0% (4)

vs par by strain: NT -1.89 (35) · a suit +0.12 (77)

vs par by level: part-score -1.34 (44) · game -0.55 (60) · slam +4.38 (8)

By role: declaring -0.19/bd (-2.34 vs par · 62) · defending +0.04/bd (+1.76 vs par · 50)

By vulnerability: vulnerable -1.03/bd (-1.46 vs par · 56) · not vulnerable +0.86/bd (+0.45 vs par · 56)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1C.WellandP.Beer – H.XingOpen8+5.8+0.72+1.25
Round 2C.WellandB.Velickovic – S.GuzvicaClosed8+4.1+0.51+1.75
Round 3C.WellandJ.Bereza – B.KulaClosed8-8.9-1.11-2.25
Round 4C.WellandM.Andonov – A.MomovClosed8-2.9-0.36-0.62
Round 5C.WellandY.Li – Q.TanClosed8-6.1-0.76+0.00
Round 6C.WellandR.Sau – G.GiubiloOpen8+10.8+1.35+0.62
Round 9C.WellandD.Jansons – R.KreitalsOpen8-5.4-0.68-3.12
Round 10C.WellandA.Boonstra – B.Van NoortClosed8-3.8-0.47+0.12
Round 11C.WellandL.Bellicaud – T.GuichetClosed8-0.8-0.10-1.12
Round 13C.WellandC.Chiang – Y.ChengClosed8-1.2-0.15-2.50
Round 14C.WellandF.Nacrur – P.CazabonOpen8-9.7-1.21+0.00
Round 15C.WellandD.Nobira – D.RahayuOpen8+14.1+1.76-0.62
Round 17C.WellandR.Lee – H.GaoOpen8-5.1-0.64+0.50
Round 18A.DhirN.Tennant – J.ShearerClosed8-0.5-0.06-1.12

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
+12.6Round 15🇮🇩 INDONESIA245♣x♥A-5+12
+12.1Round 15🇮🇩 INDONESIA226NT♠T-1+13
+10.1Round 1🇺🇸 USA154♠♥T+1+15
+9.6Round 18🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND96♥♦T=+0
+9.4Round 11🇫🇷 FRANCE226♠♥2=+11
+8.9Round 15🇮🇩 INDONESIA194♥x♣A-3+8
+8.7Round 14🇨🇱 CHILE146♠♦A-1+11
+6.9Round 6🇮🇹 ITALY95♥x♦A-2+12
+6.9Round 18🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND153NT♦6+1-1
+6.2Round 17🇸🇬 SINGAPORE64♥x♠K=+5
+6.0Round 2🇷🇸 SERBIA144♠♣5-2+5
+5.9Round 1🇺🇸 USA113NT♥4=-1
+4.8Round 2🇷🇸 SERBIA103♠♣A=+6
+4.6Round 18🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND143♣♠5-2+0
+4.2Round 6🇮🇹 ITALY105♦♥A=+0
+4.2Round 9🇱🇻 LATVIA64♠x♥6-1+8
+3.3Round 6🇮🇹 ITALY134♠♦K+1+0
+3.1Round 5🇨🇳 CHINA13♠♥8-3+6
+2.7Round 11🇫🇷 FRANCE213NT♠K-1+5
+2.5Round 6🇮🇹 ITALY146♥♣A=+0
+2.4Round 11🇫🇷 FRANCE184♦♥J+2-10
+2.3Round 13🇹🇼 CHINESE TAIPEI41NT♥3+3+2
+2.2Round 4🇧🇬 BULGARIA272♠♦K-1+9
+2.2Round 4🇧🇬 BULGARIA313NT♣2-1+4
+2.2Round 13🇹🇼 CHINESE TAIPEI54♥♠T-3+2
+2.1Round 5🇨🇳 CHINA43♦♣3+2+1
+1.9Round 1🇺🇸 USA142♠♥8+1+0
+1.9Round 10🇳🇱 NETHERLANDS134♠♣4+2+17
+1.9Round 10🇳🇱 NETHERLANDS143♥♦K-1+5
+1.8Round 5🇨🇳 CHINA52♥♣4+2-4
+1.8Round 5🇨🇳 CHINA74♠♣3+1+1
+1.7Round 13🇹🇼 CHINESE TAIPEI22♥♠A-1-2
+1.6Round 2🇷🇸 SERBIA154♠♥6-1+10
+1.6Round 14🇨🇱 CHILE113♠♣2+1+4
+1.4Round 3🇵🇱 POLAND185♦♥K-1-2
+1.3Round 4🇧🇬 BULGARIA326NT♠4=-11
+1.3Round 13🇹🇼 CHINESE TAIPEI13NT♦K+2-11
+1.2Round 9🇱🇻 LATVIA53NT♥3-1+5
+1.2Round 10🇳🇱 NETHERLANDS96♠♠T=+0
+1.2Round 11🇫🇷 FRANCE193NT♦3=+0
+1.0Round 10🇳🇱 NETHERLANDS113NT♥8+1-1
+0.9Round 6🇮🇹 ITALY121NT♥5=-5
+0.9Round 10🇳🇱 NETHERLANDS165♣♦A-2-5
+0.6Round 17🇸🇬 SINGAPORE14♠♠6+2+11
+0.5Round 3🇵🇱 POLAND223NT♦3=+0
+0.5Round 10🇳🇱 NETHERLANDS153♣♣5-1-2
+0.5Round 13🇹🇼 CHINESE TAIPEI31NT♠T+1+6
+0.4Round 11🇫🇷 FRANCE171♥♦K=-2
+0.3Round 13🇹🇼 CHINESE TAIPEI83NT♠3+1+1
+0.2Round 3🇵🇱 POLAND212NT♦3=+0
+0.2Round 9🇱🇻 LATVIA44♥♦Q-1-6
+0.1Round 4🇧🇬 BULGARIA293NT♥2=-2
-0.1Round 1🇺🇸 USA174♠♦A=+0
-0.1Round 5🇨🇳 CHINA34♠♦3=+0
-0.2Round 4🇧🇬 BULGARIA302♠♥K=+0
-0.2Round 14🇨🇱 CHILE123NT♣3+2+0
-0.3Round 2🇷🇸 SERBIA133♥♠4-1+1
-0.4Round 1🇺🇸 USA132♠♣K+1+0
-0.4Round 6🇮🇹 ITALY112♠♥3-2+0
-0.4Round 18🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND163NT♠5-1-5
-0.5Round 3🇵🇱 POLAND244♠♥3-1-5
-0.6Round 3🇵🇱 POLAND192♠♦J=+0
-0.6Round 15🇮🇩 INDONESIA214♥♦4=+0
-0.7Round 2🇷🇸 SERBIA94♠♦3=+0
-0.7Round 17🇸🇬 SINGAPORE53NT♣K+1+1
-0.8Round 2🇷🇸 SERBIA113♦♣Q=-7
-0.9Round 1🇺🇸 USA181NT♥5-2+8
-0.9Round 3🇵🇱 POLAND203NT♥4=+0
-1.0Round 6🇮🇹 ITALY164♣♦K-2+0
-1.1Round 14🇨🇱 CHILE134♠♦7+1+0
-1.1Round 17🇸🇬 SINGAPORE33♣♥2-2-5
-1.2Round 3🇵🇱 POLAND173♥♦J+1-1
-1.2Round 9🇱🇻 LATVIA84♠♥K-1-5
-1.3Round 9🇱🇻 LATVIA14♠♠3-1-10
-1.5Round 4🇧🇬 BULGARIA252♠♥6+2-6
-1.5Round 9🇱🇻 LATVIA72♠♣A=-6
-1.7Round 13🇹🇼 CHINESE TAIPEI65♦x♠K-1-5
-1.9Round 9🇱🇻 LATVIA22♥x♣A-1-2
-1.9Round 14🇨🇱 CHILE91NT♥6=+1
-2.0Round 14🇨🇱 CHILE103♠x♣A-1-9
-2.1Round 5🇨🇳 CHINA83♥♦3-1-4
-2.1Round 11🇫🇷 FRANCE201NTx♦3-1-2
-2.2Round 17🇸🇬 SINGAPORE21NT♥J+3-2
-2.4Round 18🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND113NT♠5=-2
-2.5Round 17🇸🇬 SINGAPORE73♠♦6+1+1
-2.6Round 4🇧🇬 BULGARIA262NT♠A+1-10
-2.6Round 17🇸🇬 SINGAPORE82NT♠T+1-1
-2.8Round 17🇸🇬 SINGAPORE42♠♣5-1-6
-3.1Round 2🇷🇸 SERBIA162♦♣A+2-1
-3.2Round 15🇮🇩 INDONESIA204♠♦Q-2-9
-3.4Round 2🇷🇸 SERBIA122♥♠A+1+0
-3.5Round 10🇳🇱 NETHERLANDS124♠♥A=-6
-3.6Round 18🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND135♥♠6=+0
-3.9Round 5🇨🇳 CHINA24♥♣6-1+1
-4.0Round 15🇮🇩 INDONESIA183♠♥K-1-6
-4.0Round 15🇮🇩 INDONESIA232♠♦T=-12
-4.4Round 4🇧🇬 BULGARIA286♣♠Q+1+11
-4.5Round 1🇺🇸 USA163♣♠A-1-4
-5.1Round 9🇱🇻 LATVIA33NT♦Q-5-9
-5.6Round 6🇮🇹 ITALY154♠♥3+2-2
-5.8Round 18🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND104♠♥6+1+12
-6.2Round 1🇺🇸 USA124♠♠J-2-8
-6.7Round 11🇫🇷 FRANCE233NT♥7-1-12
-7.2Round 14🇨🇱 CHILE163NT♦2=+1
-7.6Round 14🇨🇱 CHILE154♠♥5-2-8
-7.7Round 10🇳🇱 NETHERLANDS105♠x♦K-1-7
-7.7Round 15🇮🇩 INDONESIA173NT♠3-2-11
-7.8Round 3🇵🇱 POLAND235♦♥A-2-10
-7.8Round 13🇹🇼 CHINESE TAIPEI74NT♣7+2-13
-8.1Round 11🇫🇷 FRANCE245♦♠A=+1
-8.8Round 5🇨🇳 CHINA63NT♥3+1-1
-9.4Round 18🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND123NT♥J-2-13