🇹🇼 CHIANG Chia-fan · CHINESE TAIPEI

88rank
-42.6Butler · 104 bds
-0.41per board
±5.1swing
+0.05vs par /bd · #43/111
-0.46adjusted /bd
Butler per round: -4.6 -2.6 -20.5 5.5 -19.8 0.4 -0.1 -12.3 1.2 -0.6 -24.9 43.4 -7.7by round

vs par split: bidding -0.09 · play +0.13

Strength of schedule: opponents averaged -0.06/bd (an easy draw) → opponent-adjusted -0.46/bd

Card play — on target: opening leads 77.4% #78 of 111 · declarer play 50.0% #111 of 111 · defence 86.4% #40 of 111

Bidding activity — not a pass: 41.5% #72 of 111 (125/301)

Card play by contract type — on target
vs NTvs a suit
Opening leads37.5% (8)91.3% (23)
Declarer play33.3% (9)58.8% (17)
Defence76.5% (17)90.5% (42)

Opening leads by suit led: ♠ 80.0% (5) · ♥ 72.7% (11) · ♦ 60.0% (5) · ♣ 90.0% (10)

vs par by strain: NT +0.77 (30) · a suit -0.24 (74)

vs par by level: part-score +0.34 (29) · game +0.48 (67) · slam -4.62 (8)

By role: declaring -1.02/bd (-3.27 vs par · 45) · defending +0.05/bd (+2.58 vs par · 59)

By vulnerability: vulnerable -0.98/bd (-1.02 vs par · 52) · not vulnerable +0.16/bd (+1.11 vs par · 52)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2Y.ChengH.Koh – J.OngOpen8-4.6-0.57-1.75
Round 3Y.ChengZ.Zhu – Y.ZuoOpen8-2.6-0.33+0.62
Round 5Y.ChengM.Iher – S.LaanOpen8-20.5-2.56-2.75
Round 6Y.ChengB.Van Noort – A.BoonstraClosed8+5.5+0.69+1.12
Round 8Y.ChengC.Li – X.LiuClosed8-19.8-2.48-4.75
Round 9Y.ChengS.Kar – S.BarClosed8+0.4+0.05+2.50
Round 11Y.ChengM.Satriawan – S.WijayantoOpen8-0.1-0.01+1.12
Round 12Y.ChengS.Scata – A.ManganellaOpen8-12.3-1.54-0.75
Round 13Y.ChengJ.Lieberman – C.WellandClosed8+1.2+0.15+2.50
Round 15Y.ChengS.Pepic – M.SimicClosed8-0.6-0.07+3.12
Round 16Y.ChengR.Kreitals – D.JansonsOpen8-24.9-3.11-2.75
Round 18S.LiO.Powell – A.HuttonClosed8+43.4+5.42+2.88
Round 19S.LiD.Murray – N.TennantOpen8-7.7-0.96-0.50

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
+10.2Round 12🇮🇹 ITALY316♠♦3=+0
+9.8Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND135♥♦3-1+13
+9.6Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND96♥♣2=+0
+9.3Round 11🇮🇩 INDONESIA244♥♠K+1+1
+8.6Round 6🇳🇱 NETHERLANDS95♦x♠A-2+5
+8.6Round 15🇷🇸 SERBIA244♥♣K-1+10
+8.5Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND105♦♦6-2+17
+8.2Round 11🇮🇩 INDONESIA213NT♠Q=+7
+7.8Round 13🇺🇸 USA274NT♣7+2+13
+7.7Round 8🇨🇳 CHINA263NT♣5-3+5
+7.7Round 15🇷🇸 SERBIA173NT♥2-2+11
+6.9Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND153NT♦6+1-1
+6.6Round 9🇮🇳 INDIA23NT♠2=+7
+6.4Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND123NT♥5+1+1
+6.3Round 3🇩🇪 GERMANY174♥♠K=+7
+6.0Round 6🇳🇱 NETHERLANDS164♥x♠Q-2+5
+5.5Round 6🇳🇱 NETHERLANDS111NTx♥J-2+5
+4.8Round 2🇸🇬 SINGAPORE113♦♣Q-1+10
+3.9Round 6🇳🇱 NETHERLANDS154♠♥2=+0
+3.7Round 19🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND185♦♥8-2+0
+3.6Round 19🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND233NT♣3+1-12
+3.4Round 16🇱🇻 LATVIA295♣♦K-1+6
+3.1Round 9🇮🇳 INDIA85♠x♥K-1+6
+3.1Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND143NT♥6-1-2
+3.0Round 19🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND212♠♠5=+0
+2.7Round 9🇮🇳 INDIA44♥♦Q-2+8
+2.5Round 2🇸🇬 SINGAPORE145♥x♠K-2+5
+2.5Round 3🇩🇪 GERMANY244♠♥2-2+6
+2.5Round 12🇮🇹 ITALY303♠♥A=+7
+2.4Round 11🇮🇩 INDONESIA186♦♥K-1+12
+1.9Round 2🇸🇬 SINGAPORE161NT♥K=-1
+1.7Round 13🇺🇸 USA265♦x♠K-1+5
+1.4Round 2🇸🇬 SINGAPORE102♦♣K-1+0
+1.3Round 9🇮🇳 INDIA14♠♥4-1+10
+1.1Round 8🇨🇳 CHINA294♠♦3=-1
+0.9Round 16🇱🇻 LATVIA284♠♣Q=+6
+0.7Round 15🇷🇸 SERBIA202NT♦Q-3+7
+0.6Round 3🇩🇪 GERMANY191NT♠J-2+0
+0.6Round 15🇷🇸 SERBIA214♥♦3=+0
+0.1Round 5🇪🇪 ESTONIA34♠♦3=+0
+0.1Round 6🇳🇱 NETHERLANDS121NT♥5+1+5
-0.0Round 8🇨🇳 CHINA304♠♣A+1+0
-0.1Round 3🇩🇪 GERMANY203NT♦5+1-1
-0.1Round 12🇮🇹 ITALY323NT♠4+2+0
-0.3Round 9🇮🇳 INDIA33NT♦Q-1+5
-0.3Round 12🇮🇹 ITALY252♠♥T+1+7
-0.3Round 13🇺🇸 USA283NT♠3+1-1
-0.3Round 19🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND174♠♦Q+1+0
-0.4Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND163♣♥3-1-5
-0.5Round 3🇩🇪 GERMANY223NT♥T=+0
-0.5Round 13🇺🇸 USA231NT♠T+1-6
-0.5Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND114♠♦2+1+0
-0.7Round 5🇪🇪 ESTONIA74♠♥3=+0
-0.7Round 6🇳🇱 NETHERLANDS146♦♠9=+2
-1.1Round 11🇮🇩 INDONESIA201NT♥6=-1
-1.1Round 15🇷🇸 SERBIA194♠♥A+1+0
-1.2Round 3🇩🇪 GERMANY211NT♦7+2-1
-1.2Round 11🇮🇩 INDONESIA193NT♥8=+0
-1.3Round 5🇪🇪 ESTONIA25♣x♥J-1-6
-1.3Round 13🇺🇸 USA213NT♦K+2+11
-1.4Round 3🇩🇪 GERMANY185♦♠K-1+2
-1.4Round 5🇪🇪 ESTONIA44♦♣A=+0
-1.6Round 2🇸🇬 SINGAPORE154♠♥7-1-10
-1.6Round 16🇱🇻 LATVIA304♠♥6=+1
-1.7Round 13🇺🇸 USA222♥♠A-1+2
-1.8Round 5🇪🇪 ESTONIA53♥♠7+1+4
-1.9Round 5🇪🇪 ESTONIA82♥♠K=+0
-2.1Round 11🇮🇩 INDONESIA172♠♣9+1+0
-2.2Round 8🇨🇳 CHINA324♥♠A+1-10
-2.2Round 12🇮🇹 ITALY293♦♦J-2-3
-2.2Round 13🇺🇸 USA254♥♠T-3-2
-2.2Round 16🇱🇻 LATVIA274♥♦J=+1
-2.2Round 19🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND203NT♥6+3-1
-2.3Round 13🇺🇸 USA241NT♥3+3-2
-2.3Round 15🇷🇸 SERBIA182♠♠3+1+0
-2.4Round 19🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND243♠♣7+1-1
-2.7Round 15🇷🇸 SERBIA233♦♠A+2+10
-2.7Round 16🇱🇻 LATVIA323NT♥Q-1-6
-2.7Round 19🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND222♥♣T+3-2
-2.8Round 9🇮🇳 INDIA53NT♦3-2-6
-3.1Round 5🇪🇪 ESTONIA14♠♥2-3-6
-3.5Round 2🇸🇬 SINGAPORE124♥♠K-2-6
-3.8Round 9🇮🇳 INDIA73♠♦6-1+0
-4.2Round 6🇳🇱 NETHERLANDS105♣♥K=+0
-4.3Round 2🇸🇬 SINGAPORE94♠x♣5=-5
-5.4Round 8🇨🇳 CHINA252♥♠2+2-8
-5.8Round 2🇸🇬 SINGAPORE133♥♣A=-7
-6.0Round 12🇮🇹 ITALY274♠♠7+1-1
-6.2Round 11🇮🇩 INDONESIA233NT♥7=+1
-6.4Round 9🇮🇳 INDIA64♠♥T-3-10
-6.7Round 8🇨🇳 CHINA274♠♣2=+0
-6.9Round 8🇨🇳 CHINA314♠♦6-1-10
-7.3Round 12🇮🇹 ITALY284♠♦6-2-6
-7.4Round 8🇨🇳 CHINA286♠♥5-2-14
-7.4Round 16🇱🇻 LATVIA314♠♦J=-13
-7.6Round 16🇱🇻 LATVIA255♦♠J-2-8
-7.7Round 16🇱🇻 LATVIA264♥♦K-3-9
-8.8Round 3🇩🇪 GERMANY234♥x♣Q+1-8
-9.1Round 12🇮🇹 ITALY263♠♣K+1-10
-9.4Round 11🇮🇩 INDONESIA226♠♦2=-11
-10.4Round 5🇪🇪 ESTONIA63NT♥T-3-14
-10.4Round 19🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND194♥♣K+1+12
-12.1Round 15🇷🇸 SERBIA226♦♥5-1-13
-13.7Round 6🇳🇱 NETHERLANDS136♥♦2-2-13