CHANG Chung Ping · CTCBA SENIORS

110rank
+38.2Butler · 112 bds
+0.34per board
±4.6swing
+0.02vs par /bd · #164/345
-0.00adjusted /bd
Butler per round: 13.9 -6.7 9.4 44.3 9.7 -26.9 -5.7 0.2by round

vs par split: bidding -0.05 · play +0.07

Strength of schedule: opponents averaged -0.34/bd (an easy draw) → opponent-adjusted -0.00/bd

Card play — on target: opening leads 96.4% #2 of 345 · declarer play 66.7% #300 of 345 · defence 87.8% #107 of 345

Bidding activity — not a pass: 45.8% #105 of 345 (148/323)

Card play by contract type — on target
vs NTvs a suit
Opening leads100.0% (6)95.5% (22)
Declarer play66.7% (6)66.7% (21)
Defence84.6% (13)88.9% (36)

Opening leads by suit led: ♠ 100.0% (10) · ♥ 75.0% (4) · ♦ 100.0% (9) · ♣ 100.0% (5)

vs par by strain: NT +0.78 (23) · a suit -0.18 (89)

vs par by level: part-score -0.60 (43) · game -0.24 (59) · slam +4.20 (10)

By role: declaring +0.42/bd (-1.81 vs par · 63) · defending +0.24/bd (+2.37 vs par · 49)

By vulnerability: vulnerable +1.06/bd (+0.43 vs par · 56) · not vulnerable -0.38/bd (-0.39 vs par · 56)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2C.ChenJ.Glynn – R.GoslingClosed14+13.9+0.99+1.57
Round 3C.ChenP.Yeung – K.LungClosed14-6.7-0.48-0.93
Round 4C.ChenI.Thomson – M.Van Der VlugtOpen14+9.4+0.67-1.29
Round 6C.ChenC.Child – A.Der KinderenOpen14+44.3+3.16+5.57
Round 7C.ChenF.Boesgaard – J.JeppesenOpen14+9.7+0.69+0.21
Round 9C.ChenM.Thiele – C.WesterbeekClosed14-26.9-1.92-3.21
Round 10C.ChenI.Kaprey – L.WeersClosed14-5.7-0.41+0.64
Round 11C.ChenR.Dias – G.PoncioniClosed14+0.2+0.01-2.43

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
+13.3Round 10ALLIED FORCES214♠x♦K-4+14
+10.9Round 2BERMUDA TRIANGLE255♠x♠2-1+13
+10.6Round 11ALE106♣♦A=+0
+10.4Round 6ESU196♥♦K-1+17
+10.4Round 6ESU286♠♦T-2+11
+9.5Round 11ALE123NT♥J+1+11
+8.7Round 6ESU176♠♣4+1+11
+8.4Round 4BORDER GAVASKAR213NT♦6=+10
+7.7Round 2BERMUDA TRIANGLE267♦♥J=-2
+7.4Round 10ALLIED FORCES184♠♥6=+13
+6.8Round 2BERMUDA TRIANGLE274♠♦5+2+11
+6.5Round 3MASTERMIND45♦x♠8-1+12
+6.2Round 9LOMBARD WEIYU105♣x♠6=+4
+6.1Round 7AABENRAA BC133NT♥2=+0
+5.2Round 7AABENRAA BC63♠♣K-1+3
+5.1Round 4BORDER GAVASKAR166♦x♠3-3+12
+4.7Round 11ALE45♠x♥Q-2-4
+4.5Round 6ESU252♠♥Q+2+1
+4.2Round 10ALLIED FORCES224♠♥A=+7
+4.1Round 6ESU222♠♥6=+6
+4.0Round 3MASTERMIND112NT♠K-2+0
+4.0Round 6ESU202♥♠7+1+1
+4.0Round 7AABENRAA BC12♦♠J+1+1
+3.5Round 11ALE84♣♠A=+1
+3.2Round 7AABENRAA BC27♣x♦A-4+7
+3.1Round 3MASTERMIND132♠♦Q+1+7
+3.1Round 7AABENRAA BC103♦♣K=+10
+3.0Round 4BORDER GAVASKAR263♥♣6-2+9
+2.7Round 2BERMUDA TRIANGLE216♦♠J+1+11
+2.7Round 6ESU234♥x♥3-2+12
+2.4Round 4BORDER GAVASKAR204♥♣6+1-13
+2.3Round 7AABENRAA BC72♠♣A+1+0
+2.2Round 11ALE134♥♦A+1+4
+1.9Round 6ESU262♥♦6+1+0
+1.9Round 11ALE51NT♥3+1+0
+1.6Round 4BORDER GAVASKAR273NT♠K+1-1
+1.6Round 6ESU273NT♥A-1+10
+1.4Round 2BERMUDA TRIANGLE231♦♣9=+5
+1.3Round 3MASTERMIND22♦♥A-3+10
+1.2Round 7AABENRAA BC143NT♣6=+0
+1.1Round 2BERMUDA TRIANGLE154♠♥T-1-6
+1.0Round 2BERMUDA TRIANGLE281NT♥3-2+0
+1.0Round 11ALE73♠♦J-1-1
+0.9Round 7AABENRAA BC93NT♦2+1+1
+0.8Round 9LOMBARD WEIYU143NT♣4=+2
+0.8Round 10ALLIED FORCES202♣♦6+3+10
+0.7Round 6ESU244♥♣K-2+8
+0.6Round 3MASTERMIND13♥♠A-2-8
+0.6Round 9LOMBARD WEIYU124♥♣K+1+0
+0.6Round 10ALLIED FORCES283NT♥6+2+2
+0.5Round 4BORDER GAVASKAR244♥♠6+1+0
+0.5Round 4BORDER GAVASKAR255♦♠A+1+10
+0.5Round 9LOMBARD WEIYU85♠♦K+1-8
+0.4Round 2BERMUDA TRIANGLE175♦x♣Q-1+0
+0.1Round 4BORDER GAVASKAR281NT♣3+1+0
+0.1Round 7AABENRAA BC41♠♥A+2+0
-0.0Round 4BORDER GAVASKAR234♠♠2+1-13
-0.2Round 2BERMUDA TRIANGLE224♠♠3+1+0
-0.2Round 4BORDER GAVASKAR184♥♣8+3-17
-0.2Round 7AABENRAA BC122♥♦Q-1-2
-0.4Round 3MASTERMIND95♠♦6=+0
-0.4Round 6ESU184♥♦8+1+0
-0.5Round 10ALLIED FORCES171NT♠2+1+0
-0.6Round 9LOMBARD WEIYU22♠♣2+3+6
-0.8Round 3MASTERMIND64♥♦J=+0
-0.8Round 6ESU162♥♦2-2+2
-0.8Round 6ESU212♠♠T+1+0
-0.8Round 9LOMBARD WEIYU63♦♥A=+0
-0.9Round 3MASTERMIND54♣♠A-1-5
-0.9Round 9LOMBARD WEIYU95♠♣K+1-11
-0.9Round 10ALLIED FORCES274♠♠3=+0
-1.1Round 2BERMUDA TRIANGLE183♥♠Q=+0
-1.1Round 9LOMBARD WEIYU14♠♦A-1-4
-1.2Round 4BORDER GAVASKAR153NT♠6=+2
-1.2Round 10ALLIED FORCES195♦♣Q-1+5
-1.4Round 9LOMBARD WEIYU34♥♣A-3-2
-1.4Round 11ALE13NT♥J=-11
-1.7Round 9LOMBARD WEIYU52♦♦6+2-10
-2.1Round 3MASTERMIND143NT♠T+2+0
-2.2Round 2BERMUDA TRIANGLE192♥♠6-1-5
-2.2Round 3MASTERMIND73♠♥K-2-2
-2.4Round 9LOMBARD WEIYU44♥♠3=+0
-2.6Round 4BORDER GAVASKAR174♠♠J-2-5
-2.6Round 11ALE34♠♦2-2-6
-2.7Round 6ESU153NT♦3+1-1
-2.7Round 7AABENRAA BC35♦♠J-3-6
-2.8Round 10ALLIED FORCES244♠♥A-2-5
-2.8Round 11ALE114♠♦K=-11
-2.9Round 10ALLIED FORCES254♠♣7-1-5
-2.9Round 11ALE23NT♥T+2+0
-3.0Round 3MASTERMIND83♦♠A=-5
-3.0Round 7AABENRAA BC113NT♣6-2-6
-3.1Round 10ALLIED FORCES162♠♦6-2+0
-3.2Round 3MASTERMIND32♠♣J-1-5
-3.4Round 7AABENRAA BC84♠♣K-1-5
-3.7Round 4BORDER GAVASKAR224♣♠3+1-7
-3.8Round 2BERMUDA TRIANGLE206♥♣A-2-12
-4.2Round 2BERMUDA TRIANGLE243NT♥4=+11
-4.2Round 3MASTERMIND122♥♠J+2-7
-4.2Round 9LOMBARD WEIYU132♦♥3-1-5
-4.5Round 4BORDER GAVASKAR195♣x♠J-2-5
-5.4Round 3MASTERMIND103NT♦T=-10
-5.4Round 11ALE142♥♦T=-5
-6.1Round 10ALLIED FORCES153♠x♥A+1-10
-6.1Round 11ALE92♥♦J+1+0
-6.6Round 2BERMUDA TRIANGLE164♠♥T+1-4
-7.0Round 10ALLIED FORCES262♠♥5+3-9
-7.1Round 7AABENRAA BC54♠♦A=+0
-7.5Round 10ALLIED FORCES236♦♠K-1-13
-8.5Round 9LOMBARD WEIYU73NT♦4+2-2
-12.0Round 11ALE63♥x♣6=-12
-13.4Round 9LOMBARD WEIYU115♦x♥8-4-15