🇺🇸 GROSSACK Zachary · USA1

44rank
+52.3Butler · 168 bds
+0.31per board
±5.0swing
-0.11vs par /bd · #74/116
+0.01adjusted /bd
Butler per round: 25 17.6 -8.8 6.7 0 -39.1 15.5 16.6 -40.5 35.5 12.2 11.6by round

vs par split: bidding -1.02 · play +0.90

Strength of schedule: opponents averaged -0.30/bd (an easy draw) → opponent-adjusted +0.01/bd

Card play — on target: opening leads 70.3% #105 of 116 · declarer play 88.1% #1 of 116 · defence 89.9% #10 of 116

Card play by contract type — on target
vs NTvs a suit
Opening leads87.5% (8)65.5% (29)
Declarer play95.0% (20)84.6% (39)
Defence86.7% (15)90.7% (54)

Opening leads by suit led: ♠ 50.0% (10) · ♥ 87.5% (8) · ♦ 88.9% (9) · ♣ 60.0% (10)

vs par by strain: NT -0.29 (55) · a suit -0.03 (113)

vs par by level: part-score +0.57 (58) · game +0.11 (93) · slam -3.65 (17)

By role: declaring +0.92/bd (-1.27 vs par · 99) · defending -0.56/bd (+1.55 vs par · 69)

By vulnerability: vulnerable +0.82/bd (+0.32 vs par · 84) · not vulnerable -0.20/bd (-0.55 vs par · 84)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1A.GrossackD.Cardenas Cardenas – N.Correa LagunaOpen14+25.0+1.79+4.07
Round 3A.GrossackG.Herman – C.JollyClosed14+17.6+1.26+2.29
Round 4A.GrossackJ.Etchepareborda – S.RuedaClosed14-8.8-0.63-1.43
Round 6A.GrossackV.Lamoureux – X.FengClosed14+6.7+0.48-2.50
Round 7A.GrossackO.Koivu – A.AaltoClosed14+0.0+0.00-0.43
Round 8A.GrossackG.Donati – G.PercarioOpen14-39.1-2.79-4.07
Round 10A.GrossackR.Yamada – K.KobayashiClosed14+15.5+1.11-1.79
Round 11A.GrossackA.Roberts – A.KhandelwalOpen14+16.6+1.19+0.71
Round 13A.GrossackO.Rimstedt – M.RimstedtOpen14-40.5-2.89-0.50
Round 16A.GrossackJ.Pieper – F.HahnOpen14+35.5+2.54+3.21
Round 20A.GrossackB.Fischer – M.VagiOpen14+12.2+0.87-1.43
Round 21A.GrossackX.Chan – V.WanClosed14+11.6+0.83+0.50

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
+12.3Round 1🇨🇴 COLOMBIA74♥♣K=+13
+11.7Round 16🇩🇪 GERMANY154♥x♦7-3+14
+9.9Round 4🇦🇷 ARGENTINA264♥♦3-2+13
+9.8Round 4🇦🇷 ARGENTINA195♦♠A-1+12
+9.6Round 11🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND63NT♥2=+10
+9.4Round 10🇯🇵 JAPAN234♠♣5=+10
+8.7Round 11🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND146♠♠3=-11
+8.5Round 21🇭🇰 CHINA HONG KONG54♠♣Q-2+5
+8.2Round 16🇩🇪 GERMANY223NT♠7=+0
+8.0Round 3🇺🇸 USA264♠♣5-3+9
+7.7Round 21🇭🇰 CHINA HONG KONG84♥♠Q=+7
+7.5Round 16🇩🇪 GERMANY164♥♣3=+0
+7.5Round 20🇭🇺 HUNGARY173NT♠2=+7
+7.3Round 8🇮🇹 ITALY287♣♥Q=-2
+7.2Round 3🇺🇸 USA273♠♣K=+2
+7.1Round 1🇨🇴 COLOMBIA24♥x♥A=+10
+6.7Round 6🇨🇦 CANADA265♦x♣6-2+0
+6.6Round 1🇨🇴 COLOMBIA145♥♠9=+11
+6.4Round 16🇩🇪 GERMANY211NT♥4+1+6
+6.3Round 7🇫🇮 FINLAND106♥x♠10-1+7
+6.2Round 11🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND134♠♦4-1+12
+6.1Round 16🇩🇪 GERMANY273♦♥K=+7
+5.7Round 7🇫🇮 FINLAND131NT♥2-2+9
+5.6Round 1🇨🇴 COLOMBIA102NT♥K=+6
+5.5Round 3🇺🇸 USA2123NT♠A+1+8
+5.1Round 3🇺🇸 USA223♠♦K=+6
+5.0Round 3🇺🇸 USA242♦♣4-4+6
+5.0Round 4🇦🇷 ARGENTINA234♥♦2-1+6
+5.0Round 6🇨🇦 CANADA186♦♦4=+0
+4.5Round 1🇨🇴 COLOMBIA62♦x♦7=+12
+4.5Round 8🇮🇹 ITALY226♠♥K+1-11
+4.4Round 8🇮🇹 ITALY264♥♠2+1+0
+4.3Round 1🇨🇴 COLOMBIA93NT♥3+2+0
+4.3Round 1🇨🇴 COLOMBIA123NT♠10=+10
+4.3Round 6🇨🇦 CANADA213NT♥4+1+0
+4.3Round 10🇯🇵 JAPAN183NT♥6+2-12
+4.1Round 16🇩🇪 GERMANY183♠♦Q-1+5
+4.0Round 6🇨🇦 CANADA231NT♥5+2+1
+4.0Round 11🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND52♠♣K=+6
+4.0Round 13🇸🇪 SWEDEN123NTx♠2-1+12
+4.0Round 20🇭🇺 HUNGARY243♦♠K+1+13
+3.9Round 3🇺🇸 USA234♥♥4=+0
+3.9Round 10🇯🇵 JAPAN172NT♦K=+6
+3.8Round 10🇯🇵 JAPAN243NT♦5+2+0
+3.5Round 16🇩🇪 GERMANY263NT♠K+3+2
+3.4Round 20🇭🇺 HUNGARY155♣♦8-1-5
+3.4Round 20🇭🇺 HUNGARY253NT♥6-2+5
+3.2Round 1🇨🇴 COLOMBIA112♥♦6+1+0
+3.1Round 6🇨🇦 CANADA244♠♣9-4+2
+3.1Round 11🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND94♦♦6+1-8
+2.7Round 10🇯🇵 JAPAN164♠♥Q=+0
+2.6Round 7🇫🇮 FINLAND31NT♠A+2+2
+2.5Round 4🇦🇷 ARGENTINA283NT♥Q+1+0
+2.3Round 21🇭🇰 CHINA HONG KONG32♠♥9+2+6
+2.2Round 6🇨🇦 CANADA173NT♠3+2-10
+2.2Round 21🇭🇰 CHINA HONG KONG91NT♦6+1+1
+2.0Round 7🇫🇮 FINLAND112NT♠10=-1
+2.0Round 16🇩🇪 GERMANY243NT♥4=+0
+2.0Round 20🇭🇺 HUNGARY193NT♠4+1+1
+1.9Round 7🇫🇮 FINLAND25♣♠K=+0
+1.9Round 7🇫🇮 FINLAND143NT♥10+1+0
+1.9Round 20🇭🇺 HUNGARY163NT♣Q+1+0
+1.8Round 16🇩🇪 GERMANY173NT♦8+2+1
+1.8Round 20🇭🇺 HUNGARY214♥♦9=-11
+1.8Round 20🇭🇺 HUNGARY233♠♥2-1-5
+1.7Round 3🇺🇸 USA2144♠♣9+1+0
+1.7Round 11🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND44♠♣4+1+13
+1.7Round 20🇭🇺 HUNGARY274♠♦A+1+1
+1.6Round 11🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND72♠♦A=+1
+1.3Round 10🇯🇵 JAPAN272♠♥Q-1+4
+1.2Round 21🇭🇰 CHINA HONG KONG22♥♣2-1+2
+1.1Round 16🇩🇪 GERMANY192♥♦4+1+10
+1.0Round 8🇮🇹 ITALY204♠♣8+1+0
+1.0Round 10🇯🇵 JAPAN224♠♦A+1+0
+1.0Round 21🇭🇰 CHINA HONG KONG115♣x♣2-1+0
+0.9Round 7🇫🇮 FINLAND73♦♣A-2-2
+0.9Round 11🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND82NT♠K-3+0
+0.8Round 8🇮🇹 ITALY272♦♠8=-2
+0.8Round 20🇭🇺 HUNGARY204♠♥A-1+6
+0.7Round 4🇦🇷 ARGENTINA183NT♠Q=-13
+0.7Round 6🇨🇦 CANADA223NT♠9+1-1
+0.7Round 13🇸🇪 SWEDEN82NT♠Q=+0
+0.6Round 1🇨🇴 COLOMBIA53♦♣8-1+5
+0.6Round 6🇨🇦 CANADA153♥♣10+2+6
+0.5Round 8🇮🇹 ITALY162♠♦9=+0
+0.4Round 4🇦🇷 ARGENTINA244♥♠J+1+0
+0.4Round 13🇸🇪 SWEDEN54♠♣Q=+0
+0.3Round 21🇭🇰 CHINA HONG KONG102NT♦5-1+6
+0.1Round 1🇨🇴 COLOMBIA46♦♥6+1+13
+0.1Round 16🇩🇪 GERMANY283♣♥4-3+4
+0.0Round 3🇺🇸 USA2132♠♣J-1+1
+0.0Round 10🇯🇵 JAPAN151NT♦3+1+1
+0.0Round 10🇯🇵 JAPAN202♠♦7=-6
-0.2Round 10🇯🇵 JAPAN194♠♥9=+1
-0.3Round 1🇨🇴 COLOMBIA133♥♦8=+0
-0.3Round 7🇫🇮 FINLAND64♠♣Q+1+0
-0.4Round 21🇭🇰 CHINA HONG KONG13NT♠5=+1
-0.4Round 21🇭🇰 CHINA HONG KONG123NT♥5+2+0
-0.4Round 21🇭🇰 CHINA HONG KONG143NT♥7+1-1
-0.5Round 21🇭🇰 CHINA HONG KONG76♣♠9+1-7
-0.6Round 6🇨🇦 CANADA202♥♥2-2-9
-0.6Round 11🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND106NT♥2=+0
-0.6Round 11🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND114♦♥K+1+6
-0.6Round 13🇸🇪 SWEDEN33NT♠10+3-1
-0.7Round 8🇮🇹 ITALY181NT♥A-2-2
-0.7Round 13🇸🇪 SWEDEN23♥♣J+1+8
-0.7Round 21🇭🇰 CHINA HONG KONG44♠♦Q=+0
-0.9Round 13🇸🇪 SWEDEN101NT♥10-2-2
-0.9Round 20🇭🇺 HUNGARY283NT♣6+2+0
-1.0Round 21🇭🇰 CHINA HONG KONG61♠♣K+1+0
-1.2Round 7🇫🇮 FINLAND85♣♥A=+0
-1.3Round 13🇸🇪 SWEDEN92♠♥A+2+6
-1.4Round 7🇫🇮 FINLAND13NT♠6=+1
-1.4Round 10🇯🇵 JAPAN254♠♣3-1-5
-1.5Round 13🇸🇪 SWEDEN13♦♠2-1+2
-1.6Round 3🇺🇸 USA214♥♦7+1+10
-1.6Round 7🇫🇮 FINLAND124♠♦A+2-1
-1.7Round 6🇨🇦 CANADA196♥♠4+1-1
-1.9Round 11🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND16♥♠10=+0
-2.0Round 4🇦🇷 ARGENTINA154♥♦5=-7
-2.0Round 6🇨🇦 CANADA284♥♣3=+0
-2.0Round 11🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND22♠♥5-2+0
-2.2Round 4🇦🇷 ARGENTINA273NT♣7+4+10
-2.3Round 3🇺🇸 USA2102♦♣8=-1
-2.4Round 6🇨🇦 CANADA274♠♥6=-3
-2.4Round 10🇯🇵 JAPAN283NT♦3=+1
-2.5Round 6🇨🇦 CANADA252NT♥K-1-5
-2.9Round 4🇦🇷 ARGENTINA214♥♣K+1+0
-2.9Round 20🇭🇺 HUNGARY264♠♥K+2-13
-3.1Round 3🇺🇸 USA253♦♣Q-2-2
-3.1Round 8🇮🇹 ITALY154♥♥6+3-2
-3.3Round 13🇸🇪 SWEDEN44♥♣3-2-7
-3.4Round 10🇯🇵 JAPAN216NT♦5+1-13
-3.5Round 7🇫🇮 FINLAND92♠♣10+2-8
-3.5Round 10🇯🇵 JAPAN261♦♠J=-12
-3.5Round 13🇸🇪 SWEDEN65♣♠6-1-6
-3.6Round 4🇦🇷 ARGENTINA253NT♥Q-1-5
-3.8Round 3🇺🇸 USA293♣♦9-2+0
-4.0Round 3🇺🇸 USA283NT♣3+1-1
-4.0Round 3🇺🇸 USA2113NT♣Q-2-6
-4.0Round 4🇦🇷 ARGENTINA171NT♣9+2-7
-4.0Round 20🇭🇺 HUNGARY183NT♥5-2-6
-4.3Round 8🇮🇹 ITALY193♥♦2-3-6
-4.5Round 4🇦🇷 ARGENTINA202♠♠7+2-7
-4.6Round 16🇩🇪 GERMANY233NT♣8-2-7
-5.3Round 11🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND35♣x♥K=-4
-5.3Round 16🇩🇪 GERMANY204♥x♥3=-5
-5.8Round 13🇸🇪 SWEDEN143NTx♦K-2-10
-5.9Round 4🇦🇷 ARGENTINA164♥♠3-4-12
-6.0Round 7🇫🇮 FINLAND55♥x♣A-4-5
-6.1Round 1🇨🇴 COLOMBIA84♠♣A=-3
-6.5Round 8🇮🇹 ITALY233NT♣Q=-10
-6.5Round 13🇸🇪 SWEDEN114♠x♦2-3-9
-6.6Round 1🇨🇴 COLOMBIA13NT♣2-1-10
-7.0Round 13🇸🇪 SWEDEN136♥♠2=+0
-7.1Round 16🇩🇪 GERMANY255♦x♠A-5+8
-7.3Round 7🇫🇮 FINLAND44♥x♥7-1-8
-8.2Round 21🇭🇰 CHINA HONG KONG135♥♦K-2-13
-8.3Round 20🇭🇺 HUNGARY226♥♦J-2-13
-8.8Round 11🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND126♥♠A+1-15
-9.0Round 8🇮🇹 ITALY247♠♣5=+0
-9.9Round 8🇮🇹 ITALY215♦x♠A-3+0
-10.6Round 1🇨🇴 COLOMBIA34♣x♣6-5-10
-10.7Round 6🇨🇦 CANADA161♠x♠A=-15
-11.1Round 8🇮🇹 ITALY257♣x♥A-3-9
-12.0Round 4🇦🇷 ARGENTINA224♠x♠2+1-10
-13.0Round 8🇮🇹 ITALY173♥x♥4=-13
-14.5Round 13🇸🇪 SWEDEN76♥♠8=+0