CHEN Xuefeng · CHINA RDFZ BLUE

56rank
+5.4Butler · 20 bds
+0.27per board
±6.1swing
+0.55vs par /bd
-0.43adjusted /bd
Butler per round: 31.6 -26.2by round

vs par split: bidding +0.95 · play +0.26

Strength of schedule: opponents averaged -0.70/bd (an easy draw) → opponent-adjusted -0.43/bd

Card play — on target: opening leads 60.0% · declarer play 100.0% · defence 81.8%

Card play by contract type — on target
vs NTvs a suit
Opening leads50.0% (2)66.7% (3)
Declarer play·100.0% (2)
Defence75.0% (4)85.7% (7)

Opening leads by suit led: ♠ 0.0% (1) · ♥ 100.0% (2) · ♦ 50.0% (2)

vs par by strain: NT +1.86 (7) · a suit +0.83 (12)

vs par by level: part-score +0.11 (9) · game +1.22 (9) · slam +11.00 (1)

By role: declaring -3.19/bd (-6.33 vs par · 9) · defending +3.10/bd (+6.18 vs par · 11)

By vulnerability: vulnerable -1.18/bd (-2.00 vs par · 10) · not vulnerable +1.72/bd (+3.10 vs par · 10)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 6X.SongL.Diaz – C.SilvaClosed10+31.6+3.16+3.10
Round 7X.SongY.Zhang – C.GuOpen10-26.2-2.62-2.00

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
+11.8Round 7SHENGXING GREEN93NT♦3-3+13
+8.1Round 6CHILE305♣x♥A-2+9
+7.3Round 6CHILE233NT♦4-2+8
+5.4Round 6CHILE262NT♥A+2+3
+4.4Round 6CHILE211NTx♥A=+3
+4.1Round 6CHILE293♠♥A+1+8
+3.2Round 6CHILE244♣♠5-1+4
+3.0Round 6CHILE273♠♣3+2+6
+2.4Round 7SHENGXING GREEN24♥♠J-1+10
+0.9Round 6CHILE224♥♠K+1+0
+0.6Round 7SHENGXING GREEN82♦♥J+1+0
+0.4Round 6CHILE252♣♠7+1+0
-0.2Round 7SHENGXING GREEN63NT♦6+1+0
-2.8Round 7SHENGXING GREEN103NT♠3+1-1
-3.2Round 7SHENGXING GREEN7Pass-12
-3.4Round 7SHENGXING GREEN16♠♥K+1+11
-5.2Round 6CHILE282♠♦8+2-10
-7.2Round 7SHENGXING GREEN35♦x♠5-2-12
-10.8Round 7SHENGXING GREEN52NT♣J-1-13
-13.4Round 7SHENGXING GREEN45♦x♠6-3-16