🇺🇸 DERMAN Ethan · USA2

75rank
-52.6Butler · 204 bds
-0.26per board
±4.6swing
-1.08vs par /bd · #100/108
-0.07adjusted /bd
Butler per round: -19 -20.7 -19 19 -33.4 -19.7 -3.2 -3.4 -22.4 15.2 17.1 17.1 -10 31.7 0.7 6 -8.6by round

vs par split: bidding -0.66 · play -0.42

Strength of schedule: opponents averaged +0.18/bd (a tough draw) → opponent-adjusted -0.07/bd

Card play — on target: opening leads 75.5% #74 of 108 · declarer play 77.2% #35 of 108 · defence 81.6% #43 of 108

Bidding activity — not a pass: 41.6% #59 of 108 (228/548)

Card play by contract type — on target
vs NTvs a suit
Opening leads80.0% (15)73.7% (38)
Declarer play81.0% (21)75.0% (36)
Defence78.1% (32)83.3% (66)

Opening leads by suit led: ♠ 75.0% (12) · ♥ 84.6% (13) · ♦ 66.7% (12) · ♣ 75.0% (16)

vs par by strain: NT -0.89 (72) · a suit -1.18 (132)

vs par by level: part-score -1.06 (78) · game -0.64 (113) · slam -5.00 (13)

By role: declaring +0.69/bd (-2.65 vs par · 106) · defending -1.28/bd (+0.62 vs par · 98)

By vulnerability: vulnerable -0.62/bd (-1.79 vs par · 102) · not vulnerable +0.11/bd (-0.36 vs par · 102)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1D.BalofK.Ge – C.ChenOpen12-19.0-1.58-3.67
Round 2D.BalofT.Xiao – M.YangClosed12-20.7-1.72-1.83
Round 3D.BalofK.Kisielewski – J.MichalskiClosed12-19.0-1.58+1.83
Round 4D.BalofP.Goyal – R.JahagirdarClosed12+19.0+1.58+0.33
Round 6D.BalofZ.Yuan – S.ChenClosed12-33.4-2.78-2.33
Round 7D.BalofS.Saengtuen – C.SaisithOpen12-19.7-1.64-2.58
Round 8D.BalofK.Mak – M.CaiClosed12-3.2-0.27-2.58
Round 10D.BalofP.Slovakova – K.RecicarovaOpen12-3.4-0.28-2.92
Round 11D.BalofY.Shor – E.GisinOpen12-22.4-1.87-5.33
Round 12D.BalofA.Parekh – W.BattersbyClosed12+15.2+1.27-0.83
Round 13D.BalofZ.Lai – D.ChenClosed12+17.1+1.43+0.67
Round 14D.BalofF.Zeeberg – C.ZeebergOpen12+17.1+1.43+0.58
Round 15D.BalofB.Biborka – M.Juhasz-MolnarClosed12-10.0-0.83+0.92
Round 16D.BalofI.Mathisen – M.MoeClosed12+31.7+2.64+1.42
Round 17D.BalofG.Duterte – X.RoulleOpen12+0.7+0.06+1.33
Round 18D.BalofC.Daldal – B.YildirimOpen12+6.0+0.50-1.33
Round 19D.BalofJ.Vahk – A.PedmansonClosed12-8.6-0.72-2.00

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
+11.4Round 4🇮🇳 INDIA226♠♣3=+11
+11.3Round 2🇨🇦 CANADA156♠♥K=-13
+11.1Round 16🇳🇴 NORWAY166♦♥2=+10
+10.0Round 13🇹🇼 CHINESE TAIPEI97♣♦9=-2
+9.6Round 13🇹🇼 CHINESE TAIPEI86♠♦K=+0
+8.7Round 7🇹🇭 THAILAND114♥♦A=+7
+8.7Round 16🇳🇴 NORWAY183NT♥2+1+8
+8.5Round 14🇩🇰 DENMARK256♠♣A+1-11
+7.7Round 19🇪🇪 ESTONIA32♠x♣K-3+8
+7.5Round 3🇵🇱 POLAND74♠♥Q=+10
+7.5Round 8🇭🇰 HONG KONG CHINA215♣x♠A-4+7
+7.0Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND252♥♣8+1+0
+6.5Round 2🇨🇦 CANADA172♥x♠J-2+6
+6.5Round 10🇨🇿 CZECH REPUBLIC193NT♦2=+6
+6.4Round 15🇭🇺 HUNGARY112♥♣5=+14
+6.2Round 18🇹🇷 TURKIYE213NT♦K=-1
+5.9Round 8🇭🇰 HONG KONG CHINA196NT♥5=-11
+5.9Round 14🇩🇰 DENMARK223NT♠J+3+9
+5.8Round 16🇳🇴 NORWAY223♠♥2-2+7
+5.7Round 1🇺🇸 USA153NT♦4=+0
+5.5Round 17🇫🇷 FRANCE121NT♠6+3+6
+5.4Round 14🇩🇰 DENMARK204♠♥A-2+10
+5.4Round 16🇳🇴 NORWAY194♠♥3=-1
+5.3Round 6🇨🇳 CHINA223NT♠4=+0
+4.9Round 11🇮🇱 ISRAEL124♥♠K+2-13
+4.8Round 4🇮🇳 INDIA154♠♥2-1+10
+4.8Round 4🇮🇳 INDIA234♠♦J+1-13
+4.7Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND152NT♠5=+6
+4.7Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND262♥♦8-3-8
+4.6Round 8🇭🇰 HONG KONG CHINA223NT♥8-1+6
+4.5Round 13🇹🇼 CHINESE TAIPEI123♦♣3-1-3
+4.3Round 16🇳🇴 NORWAY236NT♣J+1-13
+4.1Round 17🇫🇷 FRANCE24♥♠A-1+8
+3.8Round 10🇨🇿 CZECH REPUBLIC173NT♥6=-1
+3.7Round 6🇨🇳 CHINA184♥♦A+1+0
+3.7Round 10🇨🇿 CZECH REPUBLIC233NT♣6+1+1
+3.7Round 19🇪🇪 ESTONIA14♠♦3+1+0
+3.6Round 4🇮🇳 INDIA174♠♦Q-3+11
+3.6Round 15🇭🇺 HUNGARY54♠♦Q+1+0
+3.6Round 18🇹🇷 TURKIYE264♥♠5+1+1
+3.5Round 13🇹🇼 CHINESE TAIPEI13NT♥Q-4+3
+3.5Round 18🇹🇷 TURKIYE192♥♠J+2+7
+3.5Round 18🇹🇷 TURKIYE233NT♥5=-1
+3.4Round 1🇺🇸 USA183♥x♠T-1+0
+3.4Round 3🇵🇱 POLAND23♥♦T-2+7
+3.3Round 3🇵🇱 POLAND113NT♠3+3+11
+3.3Round 10🇨🇿 CZECH REPUBLIC164♥♣8-2+2
+3.3Round 14🇩🇰 DENMARK173NT♦8-1+5
+3.3Round 19🇪🇪 ESTONIA124♠♦T+1+0
+3.2Round 4🇮🇳 INDIA263NT♣A-1+6
+3.1Round 7🇹🇭 THAILAND73NT♥6-1+12
+3.1Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND231NT♦K+2+1
+2.9Round 19🇪🇪 ESTONIA91NT♦4-1+4
+2.8Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND193♣♥8=+6
+2.7Round 17🇫🇷 FRANCE83NT♠2+1+4
+2.7Round 17🇫🇷 FRANCE113♥♦K=+0
+2.6Round 7🇹🇭 THAILAND11NT♥5-3-4
+2.5Round 17🇫🇷 FRANCE42♠♥T=+5
+2.4Round 13🇹🇼 CHINESE TAIPEI53♠♣T-1+4
+2.2Round 14🇩🇰 DENMARK263NT♠8+3+2
+2.1Round 8🇭🇰 HONG KONG CHINA154♥♣J=-1
+2.1Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND222♥♦J+2-6
+2.0Round 10🇨🇿 CZECH REPUBLIC244♠♥A+2-11
+1.9Round 6🇨🇳 CHINA172♠♦T+2+6
+1.9Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND174♠♦2=+0
+1.9Round 13🇹🇼 CHINESE TAIPEI43NT♠J+3+1
+1.9Round 15🇭🇺 HUNGARY14♠♦J+1+0
+1.9Round 15🇭🇺 HUNGARY72♠♣4+2-1
+1.9Round 18🇹🇷 TURKIYE221NT♥7=+1
+1.6Round 1🇺🇸 USA124♥♦K+2-12
+1.5Round 4🇮🇳 INDIA164♠♣6+1+0
+1.5Round 14🇩🇰 DENMARK233NT♠6+1-12
+1.3Round 2🇨🇦 CANADA163NT♠Q+3+16
+1.3Round 16🇳🇴 NORWAY253♠♣J-1-1
+1.2Round 4🇮🇳 INDIA252♠♦3+1+0
+1.2Round 15🇭🇺 HUNGARY64♠♥K+3-14
+1.1Round 1🇺🇸 USA1105♦♠Q-1+6
+1.1Round 3🇵🇱 POLAND83NT♦J+1+0
+1.1Round 11🇮🇱 ISRAEL34♥♣A+1+0
+0.9Round 14🇩🇰 DENMARK163NT♥5+2+12
+0.7Round 19🇪🇪 ESTONIA23♦♣T=+0
+0.6Round 4🇮🇳 INDIA203NT♣T+1+0
+0.6Round 16🇳🇴 NORWAY214♠♥A+1+0
+0.5Round 2🇨🇦 CANADA243NT♣2+2+0
+0.4Round 11🇮🇱 ISRAEL61♦x♥6+1-4
+0.4Round 16🇳🇴 NORWAY243NT♠3+1+0
+0.3Round 13🇹🇼 CHINESE TAIPEI61NT♠5+2+1
+0.3Round 17🇫🇷 FRANCE93♣♣T-1+5
+0.3Round 19🇪🇪 ESTONIA84♥♦8=+7
+0.2Round 1🇺🇸 USA1123♠♦K+2-9
+0.1Round 2🇨🇦 CANADA234♥♣K+2+13
+0.1Round 13🇹🇼 CHINESE TAIPEI21♠♦7=+8
+0.1Round 14🇩🇰 DENMARK213NT♥9+2+0
+0.1Round 15🇭🇺 HUNGARY102NT♠6=+10
+0.1Round 16🇳🇴 NORWAY171♠♦8+1+7
+0.0Round 6🇨🇳 CHINA235♦♥Q-1-6
-0.1Round 2🇨🇦 CANADA253NT♠2+1-10
-0.1Round 18🇹🇷 TURKIYE173NT♥9+1-1
-0.2Round 11🇮🇱 ISRAEL41♥♣Q=-2
-0.2Round 16🇳🇴 NORWAY203NT♥6+2+0
-0.3Round 10🇨🇿 CZECH REPUBLIC253NT♠5+1+0
-0.3Round 11🇮🇱 ISRAEL102♠♦2=-11
-0.3Round 13🇹🇼 CHINESE TAIPEI112♥♠3=+7
-0.3Round 18🇹🇷 TURKIYE161NT♠6-1+2
-0.5Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND204♥♦9+1+0
-0.6Round 4🇮🇳 INDIA184♠♥3+1+0
-0.6Round 8🇭🇰 HONG KONG CHINA174♥♥8+1+0
-0.6Round 8🇭🇰 HONG KONG CHINA203NT♥8-2-8
-0.7Round 8🇭🇰 HONG KONG CHINA183♥♥J+1-4
-0.7Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND241NT♣6=+1
-0.7Round 17🇫🇷 FRANCE103NT♦6+1+0
-0.8Round 11🇮🇱 ISRAEL92♠♣6-2+1
-0.8Round 15🇭🇺 HUNGARY125♦♥5+1+11
-0.8Round 16🇳🇴 NORWAY153♣♥K+1+0
-0.9Round 1🇺🇸 USA114♠♣A+1+0
-1.0Round 19🇪🇪 ESTONIA62♥♠A=-10
-1.1Round 1🇺🇸 USA161NT♠3+1-7
-1.1Round 2🇨🇦 CANADA183NT♥Q+2+10
-1.2Round 7🇹🇭 THAILAND93♠♥J-1-5
-1.3Round 6🇨🇳 CHINA194♥♦3=-1
-1.3Round 6🇨🇳 CHINA261NT♥8+1+0
-1.3Round 11🇮🇱 ISRAEL13NT♣4=+1
-1.4Round 18🇹🇷 TURKIYE152♥♦K+1-8
-1.5Round 7🇹🇭 THAILAND41NT♦2=-5
-1.5Round 10🇨🇿 CZECH REPUBLIC152♥♦8+1+0
-1.5Round 17🇫🇷 FRANCE32NT♠6+1-1
-1.6Round 4🇮🇳 INDIA194♦♥6-2+0
-1.6Round 8🇭🇰 HONG KONG CHINA262♠♥J+1+10
-1.6Round 14🇩🇰 DENMARK154♠♣8+1+0
-1.6Round 17🇫🇷 FRANCE64♠♣J+1-4
-1.7Round 1🇺🇸 USA195♠♦T+1-9
-1.7Round 10🇨🇿 CZECH REPUBLIC223♣♥A-1-4
-1.8Round 3🇵🇱 POLAND13♥♠2=-1
-1.8Round 11🇮🇱 ISRAEL84♥♠9=+0
-1.8Round 14🇩🇰 DENMARK242♥♦4-1-4
-1.8Round 18🇹🇷 TURKIYE203NT♣T+1+1
-1.9Round 3🇵🇱 POLAND34♠♣8+1+0
-1.9Round 7🇹🇭 THAILAND123♥♠7-1+3
-1.9Round 8🇭🇰 HONG KONG CHINA232♠♦9=-6
-2.0Round 17🇫🇷 FRANCE13♠♣Q-2-8
-2.1Round 2🇨🇦 CANADA212NT♠2-2-7
-2.1Round 18🇹🇷 TURKIYE254♥♠K+2-1
-2.2Round 8🇭🇰 HONG KONG CHINA162♠♣6=+0
-2.2Round 11🇮🇱 ISRAEL52♥♠A=-9
-2.3Round 1🇺🇸 USA171♣♠T-1+0
-2.3Round 13🇹🇼 CHINESE TAIPEI73♠♥2=+0
-2.4Round 3🇵🇱 POLAND63♦♥A-1+1
-2.4Round 14🇩🇰 DENMARK183NT♥3=+1
-2.7Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND166NT♠4+1-11
-2.8Round 7🇹🇭 THAILAND101NT♠7-1-5
-2.9Round 10🇨🇿 CZECH REPUBLIC214♣x♦7-1-2
-3.0Round 18🇹🇷 TURKIYE181NT♣6=-6
-3.1Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND214♠♦8=+1
-3.3Round 1🇺🇸 USA133NT♦T+2+12
-3.3Round 15🇭🇺 HUNGARY23♣♠5+1+0
-3.4Round 4🇮🇳 INDIA244♦♦5=-11
-3.5Round 3🇵🇱 POLAND94♥♥5-1-6
-3.6Round 3🇵🇱 POLAND42♥♣7+1-2
-3.7Round 19🇪🇪 ESTONIA113♦♠Q-3-7
-3.9Round 7🇹🇭 THAILAND54♥♠8-1+2
-3.9Round 10🇨🇿 CZECH REPUBLIC185♦♠A-2-8
-3.9Round 19🇪🇪 ESTONIA44♠♠6+2-1
-4.0Round 18🇹🇷 TURKIYE243♥♣3-1-10
-4.1Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND185♣♥T=+0
-4.2Round 19🇪🇪 ESTONIA106NT♥4-1-13
-4.3Round 15🇭🇺 HUNGARY82♠♥K=-6
-4.3Round 15🇭🇺 HUNGARY93NT♦Q=+2
-4.4Round 11🇮🇱 ISRAEL24♠♣K=-11
-4.5Round 8🇭🇰 HONG KONG CHINA243NT♣7-1-10
-4.6Round 7🇹🇭 THAILAND34♥♠7-1-6
-4.7Round 6🇨🇳 CHINA242NT♣K-2-5
-4.8Round 7🇹🇭 THAILAND84♠♥2+1-8
-4.9Round 14🇩🇰 DENMARK194♥♦9-1-5
-5.0Round 15🇭🇺 HUNGARY34♠♥K+1+0
-5.0Round 16🇳🇴 NORWAY264♥♣2=+0
-5.0Round 17🇫🇷 FRANCE54♥♦A=+0
-5.3Round 3🇵🇱 POLAND123NT♥4+1+12
-5.7Round 7🇹🇭 THAILAND61NT♠7=-11
-5.7Round 11🇮🇱 ISRAEL113NT♥5=-3
-5.8Round 13🇹🇼 CHINESE TAIPEI33NT♠T-1-10
-5.8Round 19🇪🇪 ESTONIA74♠x♥9-1-2
-5.9Round 6🇨🇳 CHINA166♣♥A+1+13
-5.9Round 6🇨🇳 CHINA214♥♥J=-7
-5.9Round 10🇨🇿 CZECH REPUBLIC263♦♦2+1-6
-6.2Round 2🇨🇦 CANADA204♠x♦A-1-8
-6.2Round 6🇨🇳 CHINA254♣x♠A-2-5
-6.3Round 17🇫🇷 FRANCE74♥♦Q=+1
-6.5Round 4🇮🇳 INDIA213NT♦K=-10
-6.5Round 10🇨🇿 CZECH REPUBLIC203♥♠A=-12
-6.6Round 2🇨🇦 CANADA193NT♠A-3-7
-6.8Round 13🇹🇼 CHINESE TAIPEI104♥♥7=-1
-7.0Round 3🇵🇱 POLAND104♥♠6=+0
-7.4Round 15🇭🇺 HUNGARY44♥♠9-3-5
-7.7Round 7🇹🇭 THAILAND23♠♥6=-11
-7.9Round 6🇨🇳 CHINA154♠x♥6+1-6
-8.6Round 19🇪🇪 ESTONIA53NT♣4=-10
-8.8Round 3🇵🇱 POLAND53NT♥2+1-10
-9.3Round 1🇺🇸 USA145♠♥K-1-13
-10.6Round 2🇨🇦 CANADA265♣x♥A-5-14
-11.1Round 6🇨🇳 CHINA206NT♠7-1-17
-11.2Round 8🇭🇰 HONG KONG CHINA253NT♠3=-14
-12.1Round 11🇮🇱 ISRAEL73NT♥7-2-13
-12.4Round 1🇺🇸 USA1115♣x♠K-4-12
-13.7Round 2🇨🇦 CANADA226♥♠T=-8