BERKOWITZ Dana · POLLACK

85rank
-14.1Butler · 140 bds
-0.10per board
±4.8swing
-0.77vs par /bd · #106/132
-0.27adjusted /bd
Butler per round: -4.1 12.8 -17 26.1 -3.6 26.8 13.9 -10.9 -28.9 -4.4 -13 -12.2 18.5 -3 -8.9 9.6 -6.8 -15.4 -15.2 21.6by round

vs par split: bidding -0.22 · play -0.55

Strength of schedule: opponents averaged -0.17/bd (an easy draw) → opponent-adjusted -0.27/bd

Card play — on target: opening leads 86.1% #24 of 132 · declarer play 70.7% #68 of 132 · defence 88.5% #40 of 132

Card play by contract type — on target
vs NTvs a suit
Opening leads90.0% (10)84.6% (26)
Declarer play63.6% (11)73.3% (30)
Defence93.3% (15)87.0% (46)

Opening leads by suit led: ♠ 66.7% (9) · ♥ 87.5% (8) · ♦ 90.9% (11) · ♣ 100.0% (8)

vs par by strain: NT -0.92 (37) · a suit -0.72 (103)

vs par by level: part-score +0.57 (67) · game -1.70 (63) · slam -3.90 (10)

By role: declaring +0.20/bd (-2.87 vs par · 79) · defending -0.49/bd (+1.95 vs par · 61)

By vulnerability: vulnerable -0.33/bd (-1.63 vs par · 70) · not vulnerable +0.13/bd (+0.09 vs par · 70)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 3S.ShiB.Cronier – S.WillardClosed7-4.1-0.59-1.14
Round 4S.ShiA.Sarniak – C.BaldyszClosed7+12.8+1.83-3.43
Round 5S.ShiN.Smith – S.BrockOpen7-17.0-2.43-3.43
Round 6S.ShiM.Iacapraro – M.GarateguyOpen7+26.1+3.73+0.14
Round 7S.ShiL.Bojoh – J.TuejeClosed7-3.6-0.51-2.57
Round 8S.ShiN.Nishida – M.SakamotoOpen7+26.8+3.83-1.00
Round 9S.ShiJ.Park – Y.KimClosed7+13.9+1.99+1.71
Round 10S.ShiG.Nabil – L.ElyacoubiOpen7-10.9-1.56+2.29
Round 11S.ShiL.Dekkers – J.NabClosed7-28.9-4.13-6.43
Round 14S.ShiD.Hu – A.ZhuOpen7-4.4-0.63-0.71
Round 15S.ShiY.Chen – B.ZhaoClosed7-13.0-1.86-3.00
Round 16S.ShiH.Zheng – J.ChenClosed7-12.2-1.74-1.57
Round 17S.ShiX.Shan – Y.LiuClosed7+18.5+2.64+0.71
Round 18S.ShiR.Gu – P.ZhuClosed7-3.0-0.43-0.86
Round 19S.ShiY.Huang – L.GanClosed7-8.9-1.27-0.14
Round 21S.ShiJ.Zhu – M.ZhouOpen7+9.6+1.37+0.43
Round 22S.ShiJ.Ouyang – J.ChaiClosed7-6.8-0.97+0.86
Round 23S.ShiY.Hou – X.YuanOpen7-15.4-2.20-1.71
Round 24S.ShiH.Wu – C.SeetOpen7-15.2-2.17+2.14
Round 25S.ShiA.Tracol – J.CassinClosed7+21.6+3.09+2.29

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 4PLATINUM CEM266♦♣Q=-2
+12.8Round 6EL ROSARIO103NTx♠K-4+14
+12.4Round 21THE GOURMET PLACE263NT♦J-2+13
+9.1Round 8JAPAN LADIES224♠♣Q=+0
+9.1Round 17CHINA PINK TEAM66♠♥A=-13
+7.4Round 7PERTAMINA EP154♠♣K+3-10
+6.8Round 8JAPAN LADIES254♥♠A=+1
+6.8Round 9SCITY63NT♥4=+0
+6.3Round 18BEIJING SHARE SUN64♠x♦6-1+0
+5.9Round 6EL ROSARIO124♠♥J=+0
+5.9Round 24SINGAPORE165♣♦5-1+12
+5.8Round 14KUNMING LIJIAN144♠♥6-1+10
+5.6Round 6EL ROSARIO82♠x♣A-3+2
+5.5Round 25GWADAGIRLS232♥♣J=+12
+5.4Round 6EL ROSARIO94NT♣A+2-12
+5.3Round 16HUBEI YIHUA234♠♣J-1+12
+5.1Round 23SHANDONG103♠♦K-1+6
+4.8Round 8JAPAN LADIES263NT♦8+1+1
+4.6Round 3JOEL203NT♠10+1-12
+4.5Round 9SCITY11♦x♦2-3+2
+4.4Round 23SHANDONG94♦♣A-1+6
+4.3Round 17CHINA PINK TEAM52♣♣A=+6
+4.2Round 4PLATINUM CEM275♣♥5=+0
+4.2Round 18BEIJING SHARE SUN26NT♦K-1+13
+4.1Round 23SHANDONG143NT♦6+3+1
+4.0Round 8JAPAN LADIES273♣♥10+1+1
+4.0Round 25GWADAGIRLS222♠♠A=+6
+3.9Round 17CHINA PINK TEAM12NT♦5+1+6
+3.8Round 18BEIJING SHARE SUN44♠x♦A-2+4
+3.7Round 19CHINA YELLOW TEAM114♠♥J=+0
+3.3Round 14KUNMING LIJIAN134♥♦4-1+6
+3.3Round 15CHINA ORANGE TEAM211NT♣6=+5
+3.2Round 8JAPAN LADIES244♥♠K+1+0
+3.0Round 3JOEL153♠♦4-1+5
+2.9Round 9SCITY41NT♥4=+12
+2.8Round 3JOEL172♥♠K+1+0
+2.8Round 3JOEL214♠♥J+2+17
+2.8Round 22COFCO YALONG BAY22♠♥6+1+1
+2.8Round 24SINGAPORE201NT♣6+2+1
+2.8Round 25GWADAGIRLS244♥♣3+1-11
+2.8Round 25GWADAGIRLS253NT♥6-1+5
+2.8Round 25GWADAGIRLS283♦♠3+1+1
+2.7Round 17CHINA PINK TEAM22♠♥K=+5
+2.6Round 9SCITY24♣♦A-3+11
+2.5Round 25GWADAGIRLS274♠♣A=+3
+2.4Round 10MOROCCAN WOMEN TEAM82NT♠2-1+5
+2.0Round 9SCITY33♣♠K=-1
+1.8Round 6EL ROSARIO132♠♥K+1+0
+1.6Round 15CHINA ORANGE TEAM152♥♦A=+0
+1.5Round 7PERTAMINA EP181NT♥5=-2
+1.4Round 21THE GOURMET PLACE223NT♥3+1+0
+1.4Round 21THE GOURMET PLACE234♥♦7=+0
+1.3Round 10MOROCCAN WOMEN TEAM101NT♣A-3+5
+1.2Round 19CHINA YELLOW TEAM84♠♦A-1-4
+1.2Round 25GWADAGIRLS262♦♣2=+0
+1.1Round 4PLATINUM CEM283NT♣4-1+6
+1.0Round 4PLATINUM CEM253NT♣3+2-12
+0.9Round 5BAKER22♥♠10+1+0
+0.9Round 21THE GOURMET PLACE283♠♣4-2-5
+0.8Round 22COFCO YALONG BAY72♦♣A+2+0
+0.5Round 8JAPAN LADIES231NT♦6=+1
+0.5Round 15CHINA ORANGE TEAM162♦♣K=-2
+0.4Round 7PERTAMINA EP173♦♠K-2+1
+0.3Round 17CHINA PINK TEAM73♠♥K+1+10
+0.2Round 18BEIJING SHARE SUN54♥♠K+1-4
+0.1Round 15CHINA ORANGE TEAM172♠♥5-1-2
+0.0Round 14KUNMING LIJIAN83NT♠5+2+1
+0.0Round 16HUBEI YIHUA242♠♥J+2-6
-0.2Round 7PERTAMINA EP193♦♠A=+1
-0.2Round 7PERTAMINA EP204♥♦8+2+13
-0.2Round 11NETHERLANDS164♥♠4=+1
-0.2Round 14KUNMING LIJIAN123NT♥10+1+0
-0.2Round 16HUBEI YIHUA283♦♠J+1+0
-0.2Round 17CHINA PINK TEAM32♥♥3+3-9
-0.4Round 4PLATINUM CEM243NT♠3+1+1
-0.4Round 5BAKER66♣♠8+1-13
-0.4Round 11NETHERLANDS184♥♠8=-1
-0.5Round 5BAKER52♥♣A+2-1
-0.6Round 5BAKER74♠♦7=+0
-0.6Round 10MOROCCAN WOMEN TEAM112♠♦2+1-1
-0.6Round 11NETHERLANDS153♥♠9-1-3
-0.6Round 11NETHERLANDS174♠♦3=-11
-0.6Round 21THE GOURMET PLACE271NT♥4-2-1
-0.8Round 10MOROCCAN WOMEN TEAM142♠♦J=+0
-0.8Round 21THE GOURMET PLACE243♥♦10-1+2
-0.8Round 22COFCO YALONG BAY42♠♦7+1+0
-1.0Round 19CHINA YELLOW TEAM134♥♣Q+1+13
-1.0Round 24SINGAPORE212♦♥6=+0
-1.1Round 22COFCO YALONG BAY51NT♠Q-1+1
-1.2Round 6EL ROSARIO113♦♣A-2+1
-1.2Round 24SINGAPORE151NT♦4-1+0
-1.3Round 4PLATINUM CEM222♥♦A+1+0
-1.4Round 16HUBEI YIHUA273NT♥4=+0
-1.4Round 22COFCO YALONG BAY63♠♥K+1+10
-1.6Round 3JOEL182♥♣A=+0
-1.6Round 8JAPAN LADIES284♥♣3-2-11
-1.6Round 16HUBEI YIHUA263♥♠5-1+0
-1.6Round 17CHINA PINK TEAM43♣♠K+1+0
-1.8Round 10MOROCCAN WOMEN TEAM94♠♠2-1-6
-1.8Round 14KUNMING LIJIAN115♣♠6+1-3
-2.0Round 10MOROCCAN WOMEN TEAM124♦♣2-2+0
-2.0Round 18BEIJING SHARE SUN14♠♥6=-1
-2.1Round 9SCITY73♥♦3=-7
-2.3Round 19CHINA YELLOW TEAM93NT♥J-2-13
-2.3Round 19CHINA YELLOW TEAM121♠x♥9-2+2
-2.4Round 22COFCO YALONG BAY14♠♣A-1+2
-2.8Round 9SCITY54♥♠K-1-5
-3.3Round 23SHANDONG111NTx♦4-1+7
-3.4Round 23SHANDONG82♠♥A=-6
-3.6Round 16HUBEI YIHUA252♠♥6-2-3
-3.7Round 19CHINA YELLOW TEAM102♠♦2-1+1
-3.9Round 5BAKER43NT♥2=+1
-3.9Round 7PERTAMINA EP163♦♠4+2-10
-3.9Round 18BEIJING SHARE SUN32♣♥6+1-5
-3.9Round 24SINGAPORE186♣♣8=+11
-4.0Round 5BAKER33♣♦6+1+0
-4.2Round 6EL ROSARIO145♥♠A=-4
-4.5Round 19CHINA YELLOW TEAM143NT♠6=+0
-4.7Round 22COFCO YALONG BAY34♠x♥8-3-8
-4.9Round 4PLATINUM CEM236NT♥4-3-17
-5.1Round 21THE GOURMET PLACE252♠♥4+2-6
-5.2Round 14KUNMING LIJIAN104♠♠8-1-12
-5.3Round 15CHINA ORANGE TEAM194♥♠Q=-7
-5.4Round 15CHINA ORANGE TEAM184♥♦5-1-10
-6.0Round 3JOEL166♦♥Q=+2
-6.3Round 14KUNMING LIJIAN94♥♠K-2-7
-7.1Round 24SINGAPORE194♥♣K=+0
-7.6Round 11NETHERLANDS204♥♦K-2-13
-7.8Round 15CHINA ORANGE TEAM201NT♠7-3-5
-8.5Round 5BAKER13NT♥9-3-11
-8.5Round 11NETHERLANDS214♥♦2=-7
-8.6Round 7PERTAMINA EP212♣x♦A+1-11
-9.4Round 10MOROCCAN WOMEN TEAM136♠♦2=+13
-9.7Round 3JOEL196NT♠2-1-20
-9.9Round 23SHANDONG135♦x♠10-1-12
-10.7Round 16HUBEI YIHUA223NT♦A+1-14
-10.7Round 24SINGAPORE174♠x♣3-4-9
-11.0Round 11NETHERLANDS192♠x♦K=-11
-11.6Round 18BEIJING SHARE SUN76♥♣Q=-13
-12.4Round 23SHANDONG123NTx♥6-2-14