ZACK EFRAIMSSON Anna · ANNA

206rank
+10.0Butler · 100 bds
+0.10per board
±3.7swing
+1.65vs par /bd · #10/478
-0.08adjusted /bd
Butler per round: -12.7 18.6 -22.8 -5.8 12.7 -13.1 10.8 17.4 10.3 -5.4by round

vs par split: bidding +1.78 · play -0.13

Strength of schedule: opponents averaged -0.18/bd (an easy draw) → opponent-adjusted -0.08/bd

Card play — on target: opening leads 73.7% #250 of 476 · declarer play 80.0% #211 of 478 · defence 85.7% #241 of 478

Card play by contract type — on target
vs NTvs a suit
Opening leads63.6% (11)77.8% (27)
Declarer play71.4% (7)84.6% (13)
Defence90.0% (20)83.7% (43)

Opening leads by suit led: ♠ 85.7% (14) · ♥ 60.0% (10) · ♦ 100.0% (5) · ♣ 55.6% (9)

vs par by strain: NT +1.88 (34) · a suit +1.53 (66)

vs par by level: part-score +1.34 (44) · game +2.04 (50) · slam +0.67 (6)

By role: declaring +0.37/bd (-0.03 vs par · 37) · defending -0.06/bd (+2.63 vs par · 63)

By vulnerability: vulnerable +0.19/bd (+1.96 vs par · 50) · not vulnerable +0.01/bd (+1.34 vs par · 50)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1B.EfraimssonD.Majumder – S.MukherjeeOpen10-12.7-1.27+1.90
Round 2B.EfraimssonL.De Michelis – G.FaillaOpen10+18.6+1.86+2.70
Round 3B.EfraimssonP.Tondel – G.GroetheimOpen10-22.8-2.28-1.80
Round 4B.EfraimssonG.Mittelman – K.BercusonOpen10-5.8-0.58+0.20
Round 5B.EfraimssonD.Jacob – J.CzyzowiczOpen10+12.7+1.27+3.30
Round 6B.EfraimssonA.Majcher – P.MarcinowskiOpen10-13.1-1.31+0.90
Round 7B.EfraimssonT.Mchenry – G.GeigerOpen10+10.8+1.08+2.30
Round 8B.EfraimssonC.Lucena – C.PellegriniOpen10+17.4+1.74+4.10
Round 9B.EfraimssonJ.Fox – J.FoxOpen10+10.3+1.03+1.60
Round 10B.EfraimssonV.Porkhun – S.KolyadenkoOpen10-5.4-0.54+1.30

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
+12.5Round 2DE MICHELIS154♠x♥K=+14
+8.0Round 2DE MICHELIS166♦♣A=-2
+8.0Round 7JOHN VEGA164♠♦6+3+14
+6.9Round 5TEAM CANADA223NT♥6=+7
+6.9Round 8ARGENTINA13NT♥2-2+6
+6.5Round 10NEVER CLAIM262NT♥10+1+10
+6.0Round 6POLAND JUNIORS54♥♠10-2+7
+5.8Round 8ARGENTINA23♠♦5=+11
+5.4Round 4MITTELMAN115♦x♣A-3+2
+5.4Round 4MITTELMAN162♠♣10-3+5
+4.9Round 2DE MICHELIS121NTx♦5-2+4
+4.9Round 9JJ MAXROD113♦♠A+1+7
+4.4Round 7JOHN VEGA144♠♣A=+11
+4.2Round 6POLAND JUNIORS34♠♦K-2+6
+4.0Round 5TEAM CANADA213NT♥3+3+11
+3.7Round 7JOHN VEGA174♥♦J-2+5
+3.6Round 1DHAMPUR SUGAR MILLS63NT♣3+1+0
+3.5Round 2DE MICHELIS195♦♣J-2+13
+3.5Round 9JJ MAXROD183NT♥8-1+6
+3.3Round 1DHAMPUR SUGAR MILLS92♠♥6+1+6
+3.0Round 5TEAM CANADA282♥♣Q+1+1
+2.6Round 5TEAM CANADA233♠♥A-1+12
+2.2Round 6POLAND JUNIORS64♠♣A-1+4
+1.8Round 8ARGENTINA53NT♥K+1-1
+1.8Round 9JJ MAXROD133NT♣9+2+0
+1.7Round 5TEAM CANADA293NT♦7+3+1
+1.6Round 4MITTELMAN202♠♠3=+5
+1.6Round 8ARGENTINA33NT♦J-1+12
+1.6Round 8ARGENTINA103NT♠7-1+0
+1.6Round 9JJ MAXROD154♠♥4+1+0
+1.5Round 4MITTELMAN193♥♥4+2+2
+1.5Round 7JOHN VEGA183NT♥10+2+0
+1.5Round 8ARGENTINA73♦♣K=+10
+1.5Round 10NEVER CLAIM293NT♥3+2+1
+1.2Round 1DHAMPUR SUGAR MILLS13♠♥J=+0
+1.1Round 10NEVER CLAIM234♦♣A-1+1
+0.8Round 7JOHN VEGA202♠♥4+1+0
+0.6Round 5TEAM CANADA253NT♥5+2+1
+0.6Round 9JJ MAXROD126♦♥5=+2
+0.5Round 8ARGENTINA63NT♠4=+0
+0.5Round 9JJ MAXROD165♥♠A+1-3
+0.4Round 9JJ MAXROD191NT♠4+1+0
+0.3Round 8ARGENTINA93♠♦Q+1+1
+0.1Round 2DE MICHELIS183NT♠Q+1+0
-0.0Round 1DHAMPUR SUGAR MILLS52♦♠2-1+5
+0.0Round 3VIKING NATURAL52♠♥3-1-2
+0.0Round 3VIKING NATURAL93NT♠4=+1
+0.0Round 5TEAM CANADA262♠♦J=-1
-0.1Round 1DHAMPUR SUGAR MILLS43NT♥6+3+9
-0.1Round 9JJ MAXROD203NT♠2+2+13
-0.2Round 8ARGENTINA82♠♣5+2+1
-0.2Round 10NEVER CLAIM253NT♥J+1-1
-0.2Round 10NEVER CLAIM283♥♣J-1-2
-0.3Round 7JOHN VEGA122♣♥Q+2+0
-0.4Round 1DHAMPUR SUGAR MILLS104♥♠4+1+0
-0.5Round 7JOHN VEGA136♠♥10+1-8
-0.7Round 2DE MICHELIS134♥♠8+1+0
-0.7Round 6POLAND JUNIORS43♦♥K+2+10
-0.7Round 6POLAND JUNIORS73♣♥3+1+0
-0.8Round 9JJ MAXROD175♣x♦A-2-4
-1.0Round 2DE MICHELIS173NT♠8=+1
-1.0Round 5TEAM CANADA303NT♥10+2-1
-1.1Round 2DE MICHELIS202♦♥A=+1
-1.1Round 3VIKING NATURAL73NT♥2+2-1
-1.1Round 5TEAM CANADA246♦♣K=+2
-1.2Round 10NEVER CLAIM272NT♠7=+7
-1.3Round 7JOHN VEGA154♥♠3=+0
-1.4Round 1DHAMPUR SUGAR MILLS84♠x♣Q-2+3
-1.8Round 10NEVER CLAIM213NT♣7+1-1
-1.9Round 7JOHN VEGA111NT♠10-2+1
-2.0Round 6POLAND JUNIORS82♦♥8=+0
-2.1Round 9JJ MAXROD144♠♣9-1-5
-2.2Round 10NEVER CLAIM246NT♠5+1-1
-2.3Round 4MITTELMAN132♠♥A=+1
-2.3Round 6POLAND JUNIORS13♦♠K=-5
-2.4Round 8ARGENTINA42NT♠4=+1
-2.4Round 10NEVER CLAIM303♥♠A=-1
-2.5Round 3VIKING NATURAL104♥♠4-1+6
-2.6Round 4MITTELMAN123♣♥J=-5
-2.7Round 2DE MICHELIS141NT♠6=+0
-2.7Round 3VIKING NATURAL43♦♥A-2-3
-2.9Round 1DHAMPUR SUGAR MILLS23♥♦Q+1-1
-2.9Round 3VIKING NATURAL12NT♣5-1-4
-3.0Round 3VIKING NATURAL84♠♣K-2-5
-3.3Round 3VIKING NATURAL62♠♦2+1-1
-3.3Round 4MITTELMAN144♠♥8=-1
-3.3Round 4MITTELMAN155♦♠3+1-1
-3.3Round 4MITTELMAN174♥♣7+1-1
-3.5Round 3VIKING NATURAL33♦♠A-3+0
-3.6Round 7JOHN VEGA194♥♠9=+0
-3.8Round 1DHAMPUR SUGAR MILLS36♠♠3+1+11
-3.8Round 3VIKING NATURAL24♠♣A-1-9
-4.0Round 5TEAM CANADA272♠♣Q+1+0
-4.2Round 6POLAND JUNIORS102♠♦Q=+0
-4.9Round 2DE MICHELIS111NTx♥A+1-4
-4.9Round 4MITTELMAN182♠♦Q-3-5
-5.7Round 6POLAND JUNIORS24♥♦10+1-4
-6.5Round 10NEVER CLAIM224♥♦6+1+0
-9.9Round 6POLAND JUNIORS92♦x♥A-2-9
-12.2Round 1DHAMPUR SUGAR MILLS73NT♠5-3-14