🇹🇼 CHEN Fei · CHINESE TAIPEI

80rank
-1.5Butler · 204 bds
-0.01per board
±5.2swing
-0.51vs par /bd · #103/134
-0.27adjusted /bd
Butler per round: 1.6 -6.2 27.1 -12.1 -10.7 -10.3 -14 16 16.6 -10 -11.4 14.3 -3.7 8.8 -11.8 9.8 -5.5by round

vs par split: bidding -0.38 · play -0.14

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

Card play — on target: opening leads 89.2% #12 of 134 · declarer play 82.6% #19 of 134 · defence 75.6% #118 of 134

Bidding activity — not a pass: 53.0% #2 of 134 (304/574)

Card play by contract type — on target
vs NTvs a suit
Opening leads91.7% (12)88.0% (25)
Declarer play70.0% (20)87.8% (49)
Defence54.5% (22)83.3% (60)

Opening leads by suit led: ♠ 90.0% (10) · ♥ 87.5% (8) · ♦ 92.3% (13) · ♣ 83.3% (6)

vs par by strain: NT -0.92 (48) · a suit -0.41 (153)

vs par by level: part-score +0.47 (89) · game -1.37 (92) · slam -1.10 (20)

By role: declaring -0.19/bd (-2.33 vs par · 120) · defending +0.30/bd (+2.15 vs par · 83)

By vulnerability: vulnerable +0.04/bd (-0.88 vs par · 102) · not vulnerable -0.05/bd (-0.15 vs par · 102)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2C.YangA.Hutton – L.SandersonClosed12+1.6+0.13-1.33
Round 3C.YangE.Kolesnik – N.AptekerOpen12-6.2-0.52-0.92
Round 5C.YangM.Kalayci – H.CobanOpen12+27.1+2.26+0.67
Round 6C.YangS.Basu – S.SarkarClosed12-12.1-1.01-6.17
Round 7C.YangR.Jeng – B.XiaoOpen12-10.7-0.89-2.17
Round 8C.YangY.Liao – Z.LiClosed12-10.3-0.86-1.00
Round 9C.YangR.Maide – J.KaasikOpen12-14.0-1.17+1.58
Round 10C.YangL.Lee – B.YangClosed12+16.0+1.33+2.75
Round 11C.YangK.Cichy – K.KopkaOpen12+16.6+1.38+1.75
Round 12C.YangS.Clementsson – A.SandinClosed12-10.0-0.83-1.17
Round 13C.YangM.Litterst – P.PabstOpen12-11.4-0.95-4.58
Round 14C.YangR.Nunez – S.SemberoizClosed12+14.3+1.19+1.25
Round 15C.YangR.Kondo – H.YonekuraOpen12-3.7-0.31+1.17
Round 16C.YangG.Giubilo – G.GiubiloClosed12+8.8+0.73-0.33
Round 17C.YangT.Guillemin – A.BoulinClosed12-11.8-0.98-0.58
Round 20C.YangE.Edwards – J.ParsonsClosed12+9.8+0.82+2.67
Round 23C.YangY.Poon – Y.TseOpen12-5.5-0.46-2.33

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
+13.2Round 2🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND192♣xx♦8-3+14
+12.8Round 23🇭🇰 HONG KONG CHINA16♠x♦Q-2+13
+12.6Round 10🇸🇬 SINGAPORE134♠x♥6-3+12
+12.4Round 11🇵🇱 POLAND26♥x♣A-4+12
+10.9Round 16🇮🇹 ITALY227♥♠K=+11
+10.5Round 9🇪🇪 ESTONIA95♣♣5=+10
+10.0Round 7🇺🇸 USA253NT♥T-2+12
+9.9Round 10🇸🇬 SINGAPORE247♦♥A-1+14
+9.7Round 5🇹🇷 TURKIYE96♦♥T=-2
+9.7Round 10🇸🇬 SINGAPORE152♠♠2-3+11
+9.6Round 3🇺🇸 USA143NT♣5-1+12
+9.0Round 6🇮🇳 INDIA206♠♣K=+0
+8.7Round 5🇹🇷 TURKIYE34♥♦K=+8
+8.5Round 14🇦🇷 ARGENTINA136♣♦8=+11
+7.5Round 15🇯🇵 JAPAN76♦♠8-1+14
+7.1Round 5🇹🇷 TURKIYE15♠♠2+1+11
+7.0Round 15🇯🇵 JAPAN54♠♠T=+0
+6.8Round 10🇸🇬 SINGAPORE185♦x♣Q-1+9
+6.5Round 14🇦🇷 ARGENTINA192♠♥8=+6
+6.4Round 17🇫🇷 FRANCE83NT♥4-1+10
+6.3Round 7🇺🇸 USA224♠♥T-2+8
+6.3Round 8🇨🇳 CHINA194♠♥A=+11
+6.2Round 14🇦🇷 ARGENTINA161NTx♦6+1+7
+6.1Round 9🇪🇪 ESTONIA24♦♣J-2+9
+6.0Round 14🇦🇷 ARGENTINA245♥♠A-1+10
+6.0Round 23🇭🇰 HONG KONG CHINA115♣x♦K-2+5
+5.8Round 5🇹🇷 TURKIYE74♠x♥9-1+8
+5.6Round 15🇯🇵 JAPAN63♠♣J=+11
+5.5Round 14🇦🇷 ARGENTINA152♠♠4+1+12
+5.3Round 13🇩🇪 GERMANY113NT♥7=-1
+5.2Round 10🇸🇬 SINGAPORE222♦♥K=+6
+5.0Round 5🇹🇷 TURKIYE45♦x♠A-1+0
+5.0Round 12🇸🇪 SWEDEN243♣♠A=+5
+4.9Round 11🇵🇱 POLAND93NT♠8=-1
+4.9Round 20🇧🇧 BARBADOS213♣♦J+1+10
+4.8Round 20🇧🇧 BARBADOS223♥♥3=+1
+4.3Round 9🇪🇪 ESTONIA121NT♠3+1+1
+4.3Round 23🇭🇰 HONG KONG CHINA83♥♣2-2+6
+4.2Round 3🇺🇸 USA193♦♥9-1+5
+4.2Round 16🇮🇹 ITALY181♥x♠3-2+3
+4.1Round 14🇦🇷 ARGENTINA223NT♠6-1-5
+4.1Round 15🇯🇵 JAPAN34♠♦8-1+5
+4.1Round 20🇧🇧 BARBADOS144♦♥5-1+5
+4.0Round 12🇸🇪 SWEDEN154♥♦2-2+8
+3.7Round 23🇭🇰 HONG KONG CHINA46♠♦7=-13
+3.6Round 12🇸🇪 SWEDEN224♦♣A+1+7
+3.6Round 13🇩🇪 GERMANY66♥♠2=+0
+3.5Round 12🇸🇪 SWEDEN183NT♠J+2+1
+3.3Round 3🇺🇸 USA1114♠♦9+2-8
+3.3Round 16🇮🇹 ITALY244♥x♣A-1+5
+3.2Round 8🇨🇳 CHINA184♠♦A+1+1
+3.1Round 17🇫🇷 FRANCE61NT♣K=+8
+3.0Round 2🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND243♠♣A=+1
+3.0Round 8🇨🇳 CHINA233♥♣T-1+12
+3.0Round 16🇮🇹 ITALY163♣♦A+1+0
+2.9Round 15🇯🇵 JAPAN25♣♦9+2+10
+2.9Round 20🇧🇧 BARBADOS173♣♥7+2+2
+2.8Round 2🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND163NT♥7+3+1
+2.8Round 3🇺🇸 USA183NT♠9=+7
+2.7Round 3🇺🇸 USA173♠♥K=+0
+2.5Round 5🇹🇷 TURKIYE63♦♠7-1+4
+2.5Round 20🇧🇧 BARBADOS243NT♠T+2+1
+2.2Round 10🇸🇬 SINGAPORE203NT♣2+3+1
+2.2Round 11🇵🇱 POLAND42♠♦K=+11
+2.0Round 6🇮🇳 INDIA243♥♠2=+1
+2.0Round 11🇵🇱 POLAND61♥♥5-1+7
+1.8Round 11🇵🇱 POLAND32♠♠3+2+1
+1.7Round 9🇪🇪 ESTONIA66♠♦8=+11
+1.7Round 11🇵🇱 POLAND74♥♦A=+0
+1.7Round 13🇩🇪 GERMANY72♠♣3+1-10
+1.7Round 13🇩🇪 GERMANY121NT♣T=-1
+1.6Round 7🇺🇸 USA2123♣♥K-1+5
+1.5Round 14🇦🇷 ARGENTINA213NT♠3-1+6
+1.4Round 2🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND234♥♥3+2-13
+1.3Round 23🇭🇰 HONG KONG CHINA24♥♣K-3-1
+1.1Round 23🇭🇰 HONG KONG CHINA53♠♥4-2+7
+1.0Round 9🇪🇪 ESTONIA32♦♠J-1+4
+1.0Round 14🇦🇷 ARGENTINA142♦♣A-1-8
+1.0Round 17🇫🇷 FRANCE12♥♣6+1+0
+0.9Round 6🇮🇳 INDIA224♥♠6+1-13
+0.9Round 11🇵🇱 POLAND103NT♥3+2+0
+0.9Round 16🇮🇹 ITALY172♠♠2+2-6
+0.8Round 2🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND202♠♦7+1+0
+0.8Round 5🇹🇷 TURKIYE113♦♠6=-1
+0.8Round 17🇫🇷 FRANCE93NT♠6-2+6
+0.7Round 11🇵🇱 POLAND124♠♥4=+0
+0.7Round 15🇯🇵 JAPAN43♠♠5+1+10
+0.7Round 16🇮🇹 ITALY142♠♦K+2+6
+0.7Round 20🇧🇧 BARBADOS182♦♠T+1+0
+0.6Round 7🇺🇸 USA232♣♥K+1+0
+0.6Round 7🇺🇸 USA281NT♠3+1+0
+0.5Round 5🇹🇷 TURKIYE84♠♦7+1+0
+0.5Round 6🇮🇳 INDIA143♠♦7-2+0
+0.4Round 5🇹🇷 TURKIYE53NT♦Q+1-10
+0.4Round 16🇮🇹 ITALY134♠♥2=+1
+0.4Round 17🇫🇷 FRANCE74♦♥A+1-8
+0.3Round 5🇹🇷 TURKIYE103♠♣K=+0
+0.3Round 7🇺🇸 USA2114♥♣Q+2-11
+0.3Round 12🇸🇪 SWEDEN143♦x♥3-3+10
+0.2Round 2🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND143♦♥J+1-5
+0.2Round 13🇩🇪 GERMANY21NT♥J=-2
+0.2Round 16🇮🇹 ITALY233♦♦7=+0
+0.2Round 17🇫🇷 FRANCE41NT♥6+2+10
+0.1Round 12🇸🇪 SWEDEN232♠♣K=+1
+0.1Round 20🇧🇧 BARBADOS134♠♦A+2+13
-0.0Round 6🇮🇳 INDIA214♥♠K+1-11
-0.0Round 8🇨🇳 CHINA214♥♣Q+1+0
-0.1Round 10🇸🇬 SINGAPORE143♦♣K-2+5
-0.3Round 8🇨🇳 CHINA224♠♣7=+0
-0.4Round 8🇨🇳 CHINA154♠♠4=+0
-0.4Round 23🇭🇰 HONG KONG CHINA73♣♠A+2-10
-0.5Round 3🇺🇸 USA132♠♦T-1-3
-0.5Round 9🇪🇪 ESTONIA102♦♣4-3+7
-0.5Round 15🇯🇵 JAPAN13NT♥J=+0
-0.6Round 13🇩🇪 GERMANY101NT♥3=+1
-0.6Round 16🇮🇹 ITALY213♠♥J-1+2
-0.7Round 8🇨🇳 CHINA244♦♠Q-1-4
-0.7Round 9🇪🇪 ESTONIA85♦x♠2-3+10
-0.8Round 2🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND183♠♦K-1-5
-0.8Round 11🇵🇱 POLAND11Adj.♦2+4
-0.8Round 20🇧🇧 BARBADOS232♠♦6+1+0
-0.9Round 17🇫🇷 FRANCE113♣♥K-1-4
-0.9Round 20🇧🇧 BARBADOS161NT♠5-1+1
-1.0Round 7🇺🇸 USA272♠♥T+2-1
-1.0Round 8🇨🇳 CHINA134♥♣Q-1-6
-1.0Round 12🇸🇪 SWEDEN202♥♥4-2-2
-1.1Round 6🇮🇳 INDIA181NT♣K+2-6
-1.1Round 11🇵🇱 POLAND52♠♦J-1+2
-1.1Round 20🇧🇧 BARBADOS191NT♦6-1+1
-1.2Round 17🇫🇷 FRANCE53NT♥7+1+1
-1.3Round 11🇵🇱 POLAND85♦♣T-1-5
-1.5Round 6🇮🇳 INDIA164♠♣K-2-9
-1.5Round 13🇩🇪 GERMANY12♠♥K+1-10
-1.5Round 17🇫🇷 FRANCE102♠♦Q-2-2
-1.6Round 23🇭🇰 HONG KONG CHINA33♠♣Q=-6
-1.7Round 14🇦🇷 ARGENTINA184♠♣Q-1-5
-1.9Round 2🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND174♥♦A+1+0
-1.9Round 3🇺🇸 USA162♥♠5+2-1
-2.0Round 6🇮🇳 INDIA132♠♣4-1+0
-2.1Round 3🇺🇸 USA124♥♠7+1+0
-2.1Round 6🇮🇳 INDIA174♣♠A-2-5
-2.1Round 9🇪🇪 ESTONIA7Adj.♣7+0
-2.1Round 23🇭🇰 HONG KONG CHINA104♠♦J+1+0
-2.2Round 6🇮🇳 INDIA233NT♠4+2-1
-2.3Round 7🇺🇸 USA213NT♠T+3-1
-2.3Round 10🇸🇬 SINGAPORE162NT♠A-1-2
-2.4Round 13🇩🇪 GERMANY94♥♣9-1-6
-2.6Round 2🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND216♠x♥2-5+7
-2.8Round 3🇺🇸 USA1125♣x♥K-2-10
-2.8Round 16🇮🇹 ITALY192♣x♠2-3-13
-3.0Round 12🇸🇪 SWEDEN133♥♠3+4-17
-3.1Round 20🇧🇧 BARBADOS153♦♣A-3-1
-3.2Round 10🇸🇬 SINGAPORE23Pass-3
-3.3Round 9🇪🇪 ESTONIA13♠♥8-1+2
-3.3Round 15🇯🇵 JAPAN84♠♦Q=+0
-3.4Round 9🇪🇪 ESTONIA53NT♣5-3-6
-3.5Round 13🇩🇪 GERMANY43NT♥2+3-2
-3.6Round 7🇺🇸 USA295♥x♠K-2-5
-3.6Round 14🇦🇷 ARGENTINA173♥♦A=-6
-3.7Round 2🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND133NT♦3+1-1
-3.7Round 7🇺🇸 USA266♠♦6-3-12
-3.8Round 12🇸🇪 SWEDEN163NT♦5=-7
-3.9Round 17🇫🇷 FRANCE36♣♠K-1-12
-4.1Round 8🇨🇳 CHINA143NT♠2-1-5
-4.3Round 13🇩🇪 GERMANY85♣x♦K-3-2
-4.3Round 20🇧🇧 BARBADOS201NT♥2+1-1
-4.4Round 2🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND154♣♥6-1-5
-4.4Round 12🇸🇪 SWEDEN212♠♣7-3-2
-4.8Round 8🇨🇳 CHINA164♥♠5-1-12
-4.8Round 15🇯🇵 JAPAN103NT♦Q+1+0
-4.8Round 15🇯🇵 JAPAN123NT♠3+2-4
-4.9Round 3🇺🇸 USA112♦♥5+1-6
-5.1Round 13🇩🇪 GERMANY33NT♠4-1-12
-5.3Round 8🇨🇳 CHINA174♥♠A+1+0
-5.3Round 10🇸🇬 SINGAPORE194♠x♥3-1-9
-5.6Round 17🇫🇷 FRANCE124♥x♦K=-5
-5.7Round 16🇮🇹 ITALY153NT♥A=+0
-5.7Round 16🇮🇹 ITALY205♠♣K+1-13
-6.0Round 5🇹🇷 TURKIYE22♣x♠7-2-4
-6.2Round 8🇨🇳 CHINA203NT♦4-3-9
-6.4Round 2🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND222♠♦A+3-10
-6.5Round 13🇩🇪 GERMANY55♥♦2-1-10
-6.6Round 12🇸🇪 SWEDEN173NT♦7-2-11
-6.7Round 10🇸🇬 SINGAPORE213NT♣6=+1
-6.8Round 11🇵🇱 POLAND11♦x♥K+2-10
-6.8Round 15🇯🇵 JAPAN114♠x♦Q-2-12
-7.0Round 6🇮🇳 INDIA157♠♥3-1-17
-7.3Round 3🇺🇸 USA1103NT♦4=+1
-7.7Round 5🇹🇷 TURKIYE125♥♣6-1-6
-7.7Round 12🇸🇪 SWEDEN194♥x♦8-1-7
-8.6Round 6🇮🇳 INDIA194♥♦3-1-13
-8.9Round 7🇺🇸 USA243NT♥8-4-11
-8.9Round 23🇭🇰 HONG KONG CHINA64♠♥A+1-7
-9.3Round 3🇺🇸 USA155♥x♠K-3-8
-9.4Round 14🇦🇷 ARGENTINA206♥♠8=+0
-10.3Round 14🇦🇷 ARGENTINA236♠♣T-2-13
-10.5Round 23🇭🇰 HONG KONG CHINA121♦x♣T-3-9
-10.6Round 7🇺🇸 USA2104♠♠5=-10
-10.6Round 17🇫🇷 FRANCE26♥♠A-1-11
-11.2Round 23🇭🇰 HONG KONG CHINA94♠x♦A=-13
-11.3Round 15🇯🇵 JAPAN97NT♥9-2-20
-12.8Round 10🇸🇬 SINGAPORE173♥x♠K-4-12
-13.6Round 9🇪🇪 ESTONIA46♥x♣A=-15
-14.0Round 9🇪🇪 ESTONIA113NTx♠2-6-14