ZHANG Yu · ZHAO
vs par split: bidding -1.57 · play -1.29
Strength of schedule: opponents averaged +0.79/bd (a tough draw) → opponent-adjusted -1.07/bd
Card play — on target: opening leads 83.3% · declarer play 50.0% · defence 72.7%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 0.0% (1) | 100.0% (5) |
| Declarer play | 0.0% (1) | 100.0% (1) |
| Defence | 100.0% (3) | 62.5% (8) |
Opening leads by suit led: ♠ 100.0% (1) · ♥ 100.0% (1) · ♦ 66.7% (3) · ♣ 100.0% (1)
vs par by strain: NT -4.00 (4) · a suit -2.40 (10)
vs par by level: part-score -4.83 (6) · game -3.14 (7) · slam +11.00 (1)
By role: declaring -2.97/bd (-6.00 vs par · 3) · defending -1.56/bd (-2.00 vs par · 11)
By vulnerability: vulnerable -2.06/bd (-5.29 vs par · 7) · not vulnerable -1.67/bd (-0.43 vs par · 7)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round of 64 | J.Liu | M.Klukowski – P.Gawrys | Closed | 14 | -26.1 | -1.86 | -2.86 |
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.
| Butler | Round | Opponents | Bd | Contract | Lead | Res | vs par |
|---|---|---|---|---|---|---|---|
| +4.2 | Round of 64 | ZIMMERMANN | 10 | 4♠x | ♦K | -3 | -12 |
| +2.9 | Round of 64 | ZIMMERMANN | 4 | 5♣ | ♥10 | -1 | +6 |
| +1.8 | Round of 64 | ZIMMERMANN | 1 | 1NT | ♠5 | -1 | -2 |
| +0.2 | Round of 64 | ZIMMERMANN | 2 | 4♥ | ♣A | -1 | -2 |
| +0.1 | Round of 64 | ZIMMERMANN | 14 | 4♠ | ♥K | +1 | +0 |
| -0.4 | Round of 64 | ZIMMERMANN | 9 | 3NT | ♥4 | +2 | -1 |
| -1.5 | Round of 64 | ZIMMERMANN | 3 | 1NT | ♦3 | +1 | +0 |
| -2.3 | Round of 64 | ZIMMERMANN | 12 | 3♠ | ♣K | -1 | -11 |
| -3.2 | Round of 64 | ZIMMERMANN | 11 | 3♥ | ♦8 | -1 | -5 |
| -3.7 | Round of 64 | ZIMMERMANN | 5 | 2♠ | ♠J | = | -5 |
| -4.0 | Round of 64 | ZIMMERMANN | 8 | 6♦ | ♠10 | = | +11 |
| -4.5 | Round of 64 | ZIMMERMANN | 6 | 2♥ | ♥9 | = | -6 |
| -5.8 | Round of 64 | ZIMMERMANN | 7 | 3NT | ♥4 | -2 | -13 |
| -9.9 | Round of 64 | ZIMMERMANN | 13 | 4♠ | ♦A | = | +0 |