YAMADA Akihiko · JAPAN SENIOR

420rank
-18.3Butler · 60 bds
-0.30per board
±4.5swing
-0.52vs par /bd · #431/535
-0.20adjusted /bd
Butler per round: -5.3 -7.2 -26.7 12.7 3.4 4.8by round

vs par split: bidding -0.83 · play +0.36

Strength of schedule: opponents averaged +0.11/bd (a tough draw) → opponent-adjusted -0.20/bd

Card play — on target: opening leads 80.0% #202 of 534 · declarer play 86.7% #22 of 534 · defence 88.9% #122 of 535

Card play by contract type — on target
vs NTvs a suit
Opening leads100.0% (3)75.0% (12)
Declarer play66.7% (3)91.7% (12)
Defence75.0% (8)94.7% (19)

Opening leads by suit led: ♠ 75.0% (8) · ♥ 100.0% (2) · ♦ 75.0% (4) · ♣ 100.0% (1)

vs par by strain: NT -1.94 (17) · a suit +0.12 (42)

vs par by level: part-score -0.30 (23) · game -1.53 (30) · slam +4.17 (6)

By role: declaring +0.08/bd (-2.73 vs par · 33) · defending -0.77/bd (+2.19 vs par · 27)

By vulnerability: vulnerable -0.62/bd (-1.00 vs par · 30) · not vulnerable +0.01/bd (-0.03 vs par · 30)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 6K.OhnoJ.Merret – R.CauchardClosed10-5.3-0.53+0.60
Round 8K.OhnoJ.Shih – P.WangOpen10-7.2-0.72-0.80
Round 10K.OhnoA.Majcher – R.MarksClosed10-26.7-2.67-4.60
Round 11K.OhnoD.Majumder – S.MukherjeeOpen10+12.7+1.27-0.80
Round 13K.OhnoD.Rosenberg – W.BaileyOpen10+3.4+0.34+2.70
Round 14K.OhnoS.Fischer – P.ReynoldsOpen10+4.8+0.48-0.20

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
+10.8Round 13OHMCONNECT46♠♦A-1+13
+7.8Round 14AUSSIE OTHERS114♠x♥A-2+9
+7.5Round 13OHMCONNECT103NT♥A-3+10
+7.0Round 11INDIA OPEN205♦x♥6-1+8
+6.5Round 10POLAND UNIVERSITY84♠♣K=+0
+5.9Round 11INDIA OPEN165♥♥6=+11
+5.6Round 6MERRET303NT♠4-5+4
+4.8Round 8YBM114♥♦K=+0
+4.0Round 6MERRET215♣♠A=-5
+3.8Round 11INDIA OPEN146♠♥6=-11
+3.6Round 10POLAND UNIVERSITY72♦♥6+1+1
+3.2Round 11INDIA OPEN193NT♥6+1+0
+3.0Round 14AUSSIE OTHERS172♠♣2-1+9
+2.8Round 11INDIA OPEN124♥♥6+2+1
+2.8Round 13OHMCONNECT62♦♠J-3+6
+2.8Round 14AUSSIE OTHERS163♥♦K=+1
+2.7Round 6MERRET244♠♥5+1+1
+2.5Round 8YBM163♦♠A-1+11
+2.0Round 6MERRET233NT♠9+1+0
+1.0Round 8YBM203NT♥3+3-13
+1.0Round 11INDIA OPEN182NT♥6=+0
+1.0Round 14AUSSIE OTHERS151NT♠3+1+0
+0.9Round 11INDIA OPEN112♦♥6-2+0
+0.5Round 8YBM143♠♥7-1+2
+0.4Round 6MERRET274♠♦10+1+0
+0.4Round 14AUSSIE OTHERS183♠♥5-1-4
+0.3Round 6MERRET255♣♦A-2+8
+0.2Round 13OHMCONNECT36♥♦3+1+11
+0.2Round 14AUSSIE OTHERS194♥♣2+2-13
-0.0Round 8YBM133♣♠K=+0
-0.3Round 11INDIA OPEN151NT♥6=+0
-0.4Round 8YBM156♦♠4=+12
-0.8Round 13OHMCONNECT25♦♠J+1+10
-0.8Round 14AUSSIE OTHERS132♥♠8+1+0
-0.9Round 6MERRET292♥♠8=+1
-1.1Round 11INDIA OPEN173NT♥Q-1-5
-1.4Round 10POLAND UNIVERSITY54♠♦A-1-5
-1.4Round 13OHMCONNECT93♥♠K=-6
-1.6Round 6MERRET28Pass-3
-1.7Round 13OHMCONNECT83NT♦2-1-2
-2.1Round 10POLAND UNIVERSITY102♥♦Q+1+0
-2.3Round 8YBM193♣♠4+1+0
-2.7Round 8YBM123♦♥10=+0
-2.7Round 10POLAND UNIVERSITY44♠♦A-1-6
-2.9Round 14AUSSIE OTHERS203NT♥Q=+1
-3.0Round 14AUSSIE OTHERS142♦♣2+1+0
-3.2Round 13OHMCONNECT53NT♥5=-3
-3.5Round 8YBM175♣♥K-1-10
-3.7Round 14AUSSIE OTHERS121NT♦10-1-5
-4.3Round 10POLAND UNIVERSITY65♥x♣A-2-5
-4.6Round 6MERRET226NT♣Q=+0
-4.7Round 10POLAND UNIVERSITY13NT♦4+1+0
-5.2Round 13OHMCONNECT13♥♠3-2+0
-5.6Round 13OHMCONNECT74♥♠10-1-12
-6.1Round 10POLAND UNIVERSITY32NT♦J-2-13
-7.1Round 8YBM183♥♣A+2-10
-7.2Round 10POLAND UNIVERSITY93NT♠Q+1-7
-8.3Round 10POLAND UNIVERSITY24♥♠K=-11
-10.5Round 11INDIA OPEN135♣♥6-1-12
-13.2Round 6MERRET266♣♠Q=+0