🇺🇸 DERMAN Ethan · USA2

17rank
+39.4Butler · 126 bds
+0.31per board
±4.7swing
-0.63vs par /bd · #15/18
+0.77adjusted /bd
Butler per round: -6 -6 -6 50.7 50.7 50.7 -5.3 -5.3 -5.3by round

vs par split: bidding -1.00 · play +0.90

Strength of schedule: opponents averaged +0.46/bd (a tough draw) → opponent-adjusted +0.77/bd

Card play — on target: opening leads 94.1% #6 of 18 · declarer play 70.6% #13 of 18 · defence 89.2% #3 of 18

Bidding activity — not a pass: 45.6% #8 of 18 (160/351)

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (3)100.0% (14)
Declarer play60.0% (5)75.0% (12)
Defence90.9% (11)88.5% (26)

Opening leads by suit led: ♠ 100.0% (4) · ♥ 100.0% (9) · ♣ 75.0% (4)

vs par by strain: NT -0.09 (32) · a suit -0.81 (94)

vs par by level: part-score -0.23 (47) · game -0.74 (73) · slam -2.33 (6)

By role: declaring +0.34/bd (-2.59 vs par · 64) · defending +0.28/bd (+1.40 vs par · 62)

By vulnerability: vulnerable +0.77/bd (-0.67 vs par · 63) · not vulnerable -0.14/bd (-0.59 vs par · 63)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
QuarterfinalD.BalofZ.Zhang – X.TangClosed14-33.5-2.39-1.71
QuarterfinalD.BalofZ.Zhang – X.TangClosed14+7.1+0.51-1.86
QuarterfinalD.BalofH.Wang – H.YuOpen14+20.4+1.46-0.14
SemifinalD.BalofB.Zhang – A.ChenOpen14-13.1-0.94-2.93
SemifinalD.BalofK.Ge – C.ChenClosed14+58.1+4.15+0.93
SemifinalD.BalofE.Xiao – J.XiaoClosed14+5.7+0.41+1.29
FinalD.BalofA.Bukat – M.KlimiukOpen14-3.4-0.24+0.14
FinalD.BalofA.Bukat – M.KlimiukOpen14+23.8+1.70-2.21
FinalD.BalofA.Bukat – M.KlimiukClosed14-25.7-1.84+0.86

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
+13.0Final🇵🇱 POLAND184♥-1+11
+12.3Semifinal🇺🇸 USA1204♠♥3=+3
+12.0Semifinal🇺🇸 USA1177♠♠T=+0
+11.9Quarterfinal🇨🇳 CHINA393♥x+1+12
+9.7Semifinal🇺🇸 USA1213NT♠7-3+14
+7.7Quarterfinal🇨🇳 CHINA296♥=+0
+7.7Final🇵🇱 POLAND154♠+1+4
+7.3Final🇵🇱 POLAND143♠x=+13
+7.3Final🇵🇱 POLAND225♦+1-11
+7.0Semifinal🇺🇸 USA1334♠♣Q-1+14
+6.3Semifinal🇺🇸 USA143♠=+8
+6.3Final🇵🇱 POLAND12♠+2+6
+6.1Quarterfinal🇨🇳 CHINA263NT♠5-1+12
+6.0Final🇵🇱 POLAND275♠+1+1
+5.3Semifinal🇺🇸 USA1304♠♣8-1+10
+5.3Final🇵🇱 POLAND244♠-1+5
+5.0Semifinal🇺🇸 USA1184♠♥7+1+1
+4.7Quarterfinal🇨🇳 CHINA113♥♣4+1+1
+4.7Quarterfinal🇨🇳 CHINA254♠♥8-1+6
+4.7Semifinal🇺🇸 USA1154♠♦5=+1
+4.7Semifinal🇺🇸 USA1232NT♣5=+5
+4.7Final🇵🇱 POLAND42♦-3+5
+4.7Final🇵🇱 POLAND385♠x♥A-1+12
+4.4Quarterfinal🇨🇳 CHINA245♦♦4+1-11
+4.3Quarterfinal🇨🇳 CHINA354♥-1+6
+4.3Semifinal🇺🇸 USA1245♦♣9-1+4
+4.3Final🇵🇱 POLAND56NT=+0
+4.3Final🇵🇱 POLAND233NT+2+1
+3.3Quarterfinal🇨🇳 CHINA284♠♥J-2-7
+3.3Semifinal🇺🇸 USA1262♣♠5-1+5
+3.3Semifinal🇺🇸 USA1314♠♦4-3+10
+3.3Final🇵🇱 POLAND363♣♠Q+1+1
+2.7Quarterfinal🇨🇳 CHINA325♣=-1
+2.7Semifinal🇺🇸 USA1223♠♥7+2+10
+2.7Semifinal🇺🇸 USA1345♦♥K=-2
+2.7Final🇵🇱 POLAND122♠-4+3
+2.7Final🇵🇱 POLAND374♠♣K-1+5
+2.6Quarterfinal🇨🇳 CHINA211NT♠4+1-10
+2.0Quarterfinal🇨🇳 CHINA22♥♦2-1-2
+2.0Semifinal🇺🇸 USA1121NT=+11
+2.0Semifinal🇺🇸 USA1273♦♣J-2+1
+1.7Quarterfinal🇨🇳 CHINA183♥♣4-1-2
+1.7Quarterfinal🇨🇳 CHINA363♠x-2-3
+1.7Semifinal🇺🇸 USA171♥x-1-9
+1.7Semifinal🇺🇸 USA1282♠♦Q=-11
+1.6Quarterfinal🇨🇳 CHINA303♦+2+1
+1.4Quarterfinal🇨🇳 CHINA273♠♥J-1-2
+1.3Final🇵🇱 POLAND265♥x-2-3
+1.1Quarterfinal🇨🇳 CHINA83NT♠T+1+14
+1.0Final🇵🇱 POLAND94♦-1+6
+1.0Final🇵🇱 POLAND254♥+3+2
+0.7Final🇵🇱 POLAND352♠♥4-2-3
+0.7Final🇵🇱 POLAND414♠♥T=+1
+0.6Quarterfinal🇨🇳 CHINA232NT♥7-1-3
+0.3Quarterfinal🇨🇳 CHINA403♣+2-6
+0.3Semifinal🇺🇸 USA132♠-1-2
+0.3Semifinal🇺🇸 USA1103NT=+1
+0.3Semifinal🇺🇸 USA1114♥=+1
+0.3Final🇵🇱 POLAND301NT♣8=+1
-0.0Semifinal🇺🇸 USA114♠+1+0
-0.0Semifinal🇺🇸 USA154♥=+0
+0.0Semifinal🇺🇸 USA1253NT♠6+3-10
+0.0Semifinal🇺🇸 USA1373NT♠K+1+1
+0.0Semifinal🇺🇸 USA1391NT♠9+1+0
+0.0Semifinal🇺🇸 USA1415♥♠4=+0
+0.0Final🇵🇱 POLAND74♠+1+1
+0.0Final🇵🇱 POLAND103♦=+0
-0.0Final🇵🇱 POLAND313NT♥4+2+0
-0.0Final🇵🇱 POLAND343NT♥Q-2-3
-0.0Final🇵🇱 POLAND406♥♠4=+0
-0.0Final🇵🇱 POLAND423NT♠6+2+0
-0.3Quarterfinal🇨🇳 CHINA54♦♥A=+0
-0.3Quarterfinal🇨🇳 CHINA424♠-1-2
-0.3Semifinal🇺🇸 USA1141NT-1-2
-0.4Quarterfinal🇨🇳 CHINA144♥♦A=-1
-0.4Quarterfinal🇨🇳 CHINA383♥-2+2
-0.4Quarterfinal🇨🇳 CHINA412♦+2+0
-0.6Quarterfinal🇨🇳 CHINA314♠+1-13
-0.7Semifinal🇺🇸 USA183♦=-1
-0.7Final🇵🇱 POLAND194♠-2-5
-0.7Final🇵🇱 POLAND211♠-2-11
-0.9Quarterfinal🇨🇳 CHINA61NT♣5-1+1
-1.0Semifinal🇺🇸 USA1194♥♦K+1-11
-1.0Semifinal🇺🇸 USA1324♥♠A=+10
-1.0Semifinal🇺🇸 USA1356♥♣3=+0
-1.0Semifinal🇺🇸 USA1423NT♠K=-2
-1.3Semifinal🇺🇸 USA1403NT♥5=-1
-1.4Quarterfinal🇨🇳 CHINA374♣=+0
-1.6Quarterfinal🇨🇳 CHINA195♥♦8=+0
-1.7Final🇵🇱 POLAND35♥+1+1
-1.9Quarterfinal🇨🇳 CHINA75♣♠3=-11
-1.9Quarterfinal🇨🇳 CHINA152♥♠K+1+7
-2.0Semifinal🇺🇸 USA164♥=-7
-2.1Quarterfinal🇨🇳 CHINA44♥♦4+1+0
-2.3Quarterfinal🇨🇳 CHINA222♥♣K=+0
-2.3Semifinal🇺🇸 USA1382♥♣2-3-8
-2.7Semifinal🇺🇸 USA1361NT♠3+2+0
-2.7Final🇵🇱 POLAND22NT-2-3
-2.9Quarterfinal🇨🇳 CHINA103NT♠3=+1
-2.9Quarterfinal🇨🇳 CHINA173NT♠3+1+0
-3.0Final🇵🇱 POLAND284NT-2-8
-3.1Quarterfinal🇨🇳 CHINA202♠♣5-3-9
-3.1Quarterfinal🇨🇳 CHINA335♠+1+1
-3.3Semifinal🇺🇸 USA1161NT♦2-2+1
-3.3Semifinal🇺🇸 USA1293♠x♥9-3-14
-3.6Quarterfinal🇨🇳 CHINA341NT=+1
-3.7Final🇵🇱 POLAND84♠=-11
-3.7Final🇵🇱 POLAND163NT=-1
-4.3Quarterfinal🇨🇳 CHINA34♥♠6=-3
-4.3Final🇵🇱 POLAND134♠=-9
-4.7Final🇵🇱 POLAND334♥x♠Q-2+12
-4.9Quarterfinal🇨🇳 CHINA124♠♥T+2-1
-5.7Semifinal🇺🇸 USA194♠+3-17
-5.9Quarterfinal🇨🇳 CHINA165♣x♠Q-1-7
-6.3Final🇵🇱 POLAND114♥x-2+0
-6.6Quarterfinal🇨🇳 CHINA93NT♣4-2-11
-6.7Final🇵🇱 POLAND174♥-1-5
-7.0Semifinal🇺🇸 USA124NT+2-14
-7.3Final🇵🇱 POLAND203♣-1-11
-7.7Final🇵🇱 POLAND394♥♠7+1-1
-8.3Quarterfinal🇨🇳 CHINA134♥x♦Q-1-12
-8.3Semifinal🇺🇸 USA1134♠=-10
-8.7Quarterfinal🇨🇳 CHINA14♠♥4=+0
-11.0Final🇵🇱 POLAND65♥-1-10
-12.7Final🇵🇱 POLAND323NT♥6=+1
-13.0Final🇵🇱 POLAND296♦♥6-1-14