🇺🇸 GROSSACK Zachary · USA1

7rank
+154.3Butler · 160 bds
+0.96per board
±5.2swing
+1.04vs par /bd · #5/88
+0.58adjusted /bd
Butler per round: 18.8 -34.9 0.7 35.5 -0.8 22.4 17.2 9.2 19.6 66.6by round

vs par split: bidding +0.46 · play +0.59

Strength of schedule: opponents averaged -0.38/bd (an easy draw) → opponent-adjusted +0.58/bd

Card play — on target: opening leads 75.0% #59 of 88 · declarer play 79.2% #17 of 88 · defence 90.9% #6 of 88

Card play by contract type — on target
vs NTvs a suit
Opening leads77.8% (9)73.9% (23)
Declarer play78.9% (19)79.3% (29)
Defence95.2% (21)88.2% (34)

Opening leads by suit led: ♠ 88.9% (9) · ♥ 72.7% (11) · ♦ 100.0% (3) · ♣ 55.6% (9)

vs par by strain: NT +1.15 (60) · a suit +0.98 (100)

vs par by level: part-score +3.04 (51) · game +0.39 (97) · slam -2.17 (12)

By role: declaring +1.03/bd (-0.14 vs par · 105) · defending +0.84/bd (+3.31 vs par · 55)

By vulnerability: vulnerable +1.21/bd (+0.86 vs par · 80) · not vulnerable +0.72/bd (+1.23 vs par · 80)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1A.GrossackS.Khor – P.HawOpen16+18.8+1.18-0.56
Round 3A.GrossackI.Ginossar – A.ReiterClosed16-34.9-2.18+1.06
Round 5A.GrossackF.Illingworth – C.HuberOpen16+0.7+0.04+0.12
Round 7A.GrossackA.Argain – N.SengialiClosed16+35.5+2.22+2.50
Round 9A.GrossackM.Gulczynski – M.KlukowskiClosed16-0.8-0.05+1.69
Round 10A.GrossackY.Noguchi – T.HasegawaOpen16+22.4+1.40+0.75
Round 13A.GrossackG.Dreimanis – J.IlzinsOpen16+17.2+1.07-0.06
Round 14A.GrossackL.Travis – E.MoskovskyClosed16+9.2+0.57-2.00
Round 15A.GrossackA.Gundersen – E.FlaattOpen16+19.6+1.23+3.19
Round 17A.GrossackK.Huang – I.HsiehClosed16+66.6+4.16+3.75

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
+15.3Round 7🇦🇷 ARGENTINA35♥♦3-1+20
+13.0Round 13🇱🇻 LATVIA43♠x♥Q=+11
+11.4Round 7🇦🇷 ARGENTINA124♥♣4=+13
+10.7Round 5🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND95♦x♠J-3+12
+10.4Round 1🇸🇬 SINGAPORE33♥x♣4=+13
+10.3Round 17🇹🇼 CHINESE TAIPEI103NT♦6=+10
+10.2Round 5🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND16♠♥6=+0
+10.0Round 17🇹🇼 CHINESE TAIPEI145♥♣A-1+8
+8.9Round 13🇱🇻 LATVIA65♦x♣A-3+17
+8.8Round 14🇦🇺 AUSTRALIA103NT♠4-1+16
+8.4Round 10🇯🇵 JAPAN63NT♠6+1+0
+8.4Round 15🇳🇴 NORWAY96♠♣2=+11
+8.2Round 7🇦🇷 ARGENTINA43NT♥2=+10
+8.0Round 15🇳🇴 NORWAY55♣x♥A-2+5
+7.7Round 14🇦🇺 AUSTRALIA22♦x♠Q+1+7
+7.5Round 10🇯🇵 JAPAN34♥♣7-1+10
+7.5Round 17🇹🇼 CHINESE TAIPEI23NT♠10-2+5
+7.0Round 13🇱🇻 LATVIA122♥x♠A-2+9
+6.5Round 9🇵🇱 POLAND43NT♥T-2+13
+6.5Round 9🇵🇱 POLAND63NTx♣6-2+10
+6.5Round 17🇹🇼 CHINESE TAIPEI66♥♣2=+0
+6.3Round 1🇸🇬 SINGAPORE145♦♦2=-1
+6.1Round 9🇵🇱 POLAND54♠x♣A=+5
+5.9Round 7🇦🇷 ARGENTINA143NT♣K=+0
+5.9Round 17🇹🇼 CHINESE TAIPEI123NT♣8+3+11
+5.8Round 15🇳🇴 NORWAY126NT♥A=+0
+5.5Round 15🇳🇴 NORWAY133NT♣2-2+8
+5.5Round 15🇳🇴 NORWAY151NT♥2-2+5
+5.4Round 10🇯🇵 JAPAN83NT♥5=+7
+5.3Round 9🇵🇱 POLAND91NT♦A=+6
+5.3Round 17🇹🇼 CHINESE TAIPEI83NT♦9=+6
+5.1Round 1🇸🇬 SINGAPORE165♣♠A=-1
+5.1Round 13🇱🇻 LATVIA24♠♠3+1+1
+5.0Round 5🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND52♣♣5-3+5
+4.9Round 17🇹🇼 CHINESE TAIPEI35♦x♠A-3+14
+4.8Round 14🇦🇺 AUSTRALIA162♠♥8+1+6
+4.7Round 1🇸🇬 SINGAPORE93♠♣3=+1
+4.7Round 5🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND64♣♦K=+6
+4.7Round 5🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND123NT♠9=-2
+4.7Round 7🇦🇷 ARGENTINA103NT♥A+3+1
+4.6Round 3🇮🇱 ISRAEL125♠♣9-3+12
+4.6Round 17🇹🇼 CHINESE TAIPEI133♥♠J=+7
+4.5Round 5🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND163♦♠6+1+7
+4.5Round 17🇹🇼 CHINESE TAIPEI113NT♠6=+0
+4.4Round 9🇵🇱 POLAND113NT♦6=+7
+4.3Round 1🇸🇬 SINGAPORE151NTx♠3-1+3
+4.3Round 17🇹🇼 CHINESE TAIPEI54♥♣10=+0
+4.2Round 1🇸🇬 SINGAPORE82♥♦2+1+7
+4.1Round 15🇳🇴 NORWAY161NTx♥5+1+9
+3.9Round 3🇮🇱 ISRAEL62♦x♦A+1+9
+3.9Round 10🇯🇵 JAPAN144♦♦A-2+8
+3.9Round 14🇦🇺 AUSTRALIA141NT♦Q-1+10
+3.8Round 1🇸🇬 SINGAPORE13♥♠Q=+6
+3.7Round 1🇸🇬 SINGAPORE112NT♦4=+0
+3.7Round 7🇦🇷 ARGENTINA152♠♠3-1+10
+3.6Round 7🇦🇷 ARGENTINA73NT♥7-2-2
+3.4Round 13🇱🇻 LATVIA131♥♦7=+5
+3.3Round 14🇦🇺 AUSTRALIA82NT♠K+1+1
+3.0Round 10🇯🇵 JAPAN12♠♥3+1+4
+2.9Round 17🇹🇼 CHINESE TAIPEI42♥♦4-2+9
+2.7Round 7🇦🇷 ARGENTINA162♠♦K=+5
+2.7Round 10🇯🇵 JAPAN123♥♣A+1-1
+2.6Round 14🇦🇺 AUSTRALIA122♠♥10-2+0
+2.5Round 5🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND156♠x♠6-6+13
+2.4Round 7🇦🇷 ARGENTINA63NT♠4=+7
+2.3Round 1🇸🇬 SINGAPORE74♥♣10=+0
+2.3Round 5🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND144NT♠4=+11
+2.3Round 17🇹🇼 CHINESE TAIPEI153♠♥A-2+6
+2.1Round 3🇮🇱 ISRAEL52♠♠J+3+6
+2.1Round 9🇵🇱 POLAND84♥♦5-1+4
+2.1Round 14🇦🇺 AUSTRALIA51NT♠3+3+1
+1.9Round 14🇦🇺 AUSTRALIA95♦♥A+1-9
+1.7Round 9🇵🇱 POLAND33NT♥2-2+5
+1.7Round 10🇯🇵 JAPAN113♦♠A+1-7
+1.5Round 3🇮🇱 ISRAEL13NT♣K=+0
+1.5Round 7🇦🇷 ARGENTINA54♣x♥K-1+0
+1.5Round 15🇳🇴 NORWAY84♥♣A=+3
+1.3Round 1🇸🇬 SINGAPORE43NT♦10+2+0
+1.3Round 14🇦🇺 AUSTRALIA114♥♦7=+3
+1.1Round 17🇹🇼 CHINESE TAIPEI75♥♣A-1-12
+1.0Round 17🇹🇼 CHINESE TAIPEI93NT♣7=+1
+0.9Round 7🇦🇷 ARGENTINA113NT♣7+2+0
+0.9Round 9🇵🇱 POLAND14♥♣A=+0
+0.9Round 10🇯🇵 JAPAN94♥♠8+1+0
+0.8Round 1🇸🇬 SINGAPORE63NT♥3+1+0
+0.7Round 3🇮🇱 ISRAEL84♥x♦5-1+0
+0.7Round 14🇦🇺 AUSTRALIA43NT♦2=-13
+0.7Round 15🇳🇴 NORWAY73♠♥4-1+6
+0.6Round 13🇱🇻 LATVIA15♥x♠A-2+0
+0.5Round 10🇯🇵 JAPAN54♦♠Q-2+1
+0.5Round 15🇳🇴 NORWAY23NT♥8-2+6
+0.3Round 3🇮🇱 ISRAEL141NT♠2+1+1
+0.3Round 15🇳🇴 NORWAY62NT♠9+1+1
+0.2Round 7🇦🇷 ARGENTINA133♣♦4+2-2
+0.2Round 14🇦🇺 AUSTRALIA154♥♠Q+2-13
+0.1Round 9🇵🇱 POLAND143NT♥9+2+11
-0.1Round 10🇯🇵 JAPAN161NT♠K=-1
-0.1Round 13🇱🇻 LATVIA142♥♦2-1+1
-0.3Round 10🇯🇵 JAPAN101♥♣7+1+0
-0.3Round 13🇱🇻 LATVIA33NT♠7+1+0
-0.4Round 13🇱🇻 LATVIA154♥♠A+2-1
-0.6Round 5🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND44♠♣3+2-1
-0.6Round 10🇯🇵 JAPAN133♣♦K-1+1
-0.6Round 13🇱🇻 LATVIA54♥♥6+2-1
-0.7Round 10🇯🇵 JAPAN46♣♥4-1-12
-0.7Round 10🇯🇵 JAPAN155♠♥5=+0
-0.9Round 3🇮🇱 ISRAEL31NT♠3+3+1
-1.0Round 3🇮🇱 ISRAEL113♦♦3+1+1
-1.3Round 13🇱🇻 LATVIA113NT♣10=+0
-1.6Round 14🇦🇺 AUSTRALIA62♥♣A+2-7
-1.7Round 17🇹🇼 CHINESE TAIPEI16♣♠A-2-5
-1.9Round 13🇱🇻 LATVIA94♥♥10+2-11
-1.9Round 14🇦🇺 AUSTRALIA34♠♠10-2-5
-1.9Round 15🇳🇴 NORWAY105♥♥6=+0
-2.4Round 9🇵🇱 POLAND123NT♣K+3-11
-2.4Round 10🇯🇵 JAPAN23NT♣3=+2
-2.5Round 9🇵🇱 POLAND106♠♣T+1-1
-2.8Round 17🇹🇼 CHINESE TAIPEI164♠♥K=+0
-3.0Round 15🇳🇴 NORWAY44♠x♠6=-4
-3.0Round 15🇳🇴 NORWAY114♥x♠J-2+4
-3.1Round 3🇮🇱 ISRAEL101NT♣A=+1
-3.1Round 5🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND133NT♣J-2-8
-3.2Round 9🇵🇱 POLAND163NT♦J+1-1
-3.2Round 15🇳🇴 NORWAY14♥♠5=-3
-3.3Round 13🇱🇻 LATVIA102♠♠6=-6
-3.5Round 1🇸🇬 SINGAPORE54♥♣4+1+0
-3.5Round 7🇦🇷 ARGENTINA13♣♣9-3-1
-3.7Round 1🇸🇬 SINGAPORE21NT♦5-2+0
-3.7Round 3🇮🇱 ISRAEL23NT♦J+2-2
-3.9Round 9🇵🇱 POLAND134♥♠A-1-6
-3.9Round 13🇱🇻 LATVIA75♣♦A-1-12
-4.1Round 15🇳🇴 NORWAY34♠x♥K-3+0
-4.3Round 13🇱🇻 LATVIA83NT♦4+1-4
-4.6Round 3🇮🇱 ISRAEL135♦♣10+1+13
-4.7Round 13🇱🇻 LATVIA163NT♠J-1-10
-4.8Round 3🇮🇱 ISRAEL44♥♣A-2-8
-5.0Round 3🇮🇱 ISRAEL166♠x♣A-6+1
-5.1Round 9🇵🇱 POLAND153NT♠6-3-7
-5.1Round 14🇦🇺 AUSTRALIA72NT♥K-1-6
-5.5Round 5🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND114♠♥10-3+6
-5.5Round 15🇳🇴 NORWAY143NT♠Q+1+0
-5.7Round 3🇮🇱 ISRAEL94♠♥Q-1+2
-5.7Round 5🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND26♠x♠A-3-9
-5.7Round 5🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND35♥♣J+1-1
-5.7Round 5🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND84♠♣2-1-10
-6.1Round 1🇸🇬 SINGAPORE135♥♦5+2-12
-6.7Round 7🇦🇷 ARGENTINA83NT♠2-1-10
-6.8Round 10🇯🇵 JAPAN74♥♣Q=+0
-7.1Round 3🇮🇱 ISRAEL154♥♠K-2-8
-7.1Round 7🇦🇷 ARGENTINA24♥♦2-2-11
-7.3Round 1🇸🇬 SINGAPORE106♥♦3-1-13
-7.5Round 1🇸🇬 SINGAPORE123NT♥8-4-12
-7.6Round 14🇦🇺 AUSTRALIA16NT♠J-1-11
-7.7Round 5🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND103♦♦5+1-10
-7.7Round 7🇦🇷 ARGENTINA94♠♥6=+0
-8.6Round 9🇵🇱 POLAND25♦x♥5-3-8
-8.7Round 9🇵🇱 POLAND75NT♦8=+0
-9.9Round 5🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND73NT♣J-2-17
-11.9Round 14🇦🇺 AUSTRALIA134♥x♠8=-12
-12.1Round 3🇮🇱 ISRAEL74♥x♣J-2-12