ZHOU Yuedong · TIANJIN CONTRACT BRIDGE ASSOCI
427rank
-13.1Butler · 7 bds
-1.87per board
±3.0swing
-2.57vs par /bd
-1.60adjusted /bd
by round
vs par split: bidding -2.86 · play +0.29
Strength of schedule: opponents averaged +0.27/bd (a tough draw) → opponent-adjusted -1.60/bd
Card play — on target: opening leads 33.3% · declarer play 75.0% · defence 100.0%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 33.3% (3) |
| Declarer play | 66.7% (3) | 100.0% (1) |
| Defence | · | 100.0% (3) |
Opening leads by suit led: ♥ 0.0% (1) · ♦ 100.0% (1) · ♣ 0.0% (1)
vs par by strain: NT -2.33 (3) · a suit -2.75 (4)
vs par by level: part-score -2.33 (3) · game -2.75 (4)
By role: declaring -0.12/bd (-1.75 vs par · 4) · defending -4.20/bd (-3.67 vs par · 3)
By vulnerability: vulnerable -0.17/bd (-0.33 vs par · 3) · not vulnerable -3.15/bd (-4.25 vs par · 4)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 3 | Y.Ren | R.Levin – J.Levin | Open | 7 | -13.1 | -1.87 | -2.57 |
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.