ZHANG Yiyang · CHINA SX CLUB
vs par split: bidding -1.62 · play -0.19
Strength of schedule: opponents averaged +0.24/bd (a tough draw) → opponent-adjusted -0.10/bd
Card play — on target: opening leads 87.5% · declarer play 85.7% · defence 75.0%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 75.0% (4) | 100.0% (4) |
| Declarer play | 100.0% (1) | 83.3% (6) |
| Defence | 60.0% (5) | 81.8% (11) |
Opening leads by suit led: ♠ 50.0% (2) · ♥ 100.0% (3) · ♦ 100.0% (1) · ♣ 100.0% (2)
vs par by strain: NT -1.33 (9) · a suit -2.00 (23)
vs par by level: part-score +0.77 (17) · game -4.14 (14) · slam -13.00 (1)
By role: declaring -0.23/bd (-3.31 vs par · 16) · defending -0.44/bd (-0.31 vs par · 16)
By vulnerability: vulnerable +0.34/bd (-1.31 vs par · 16) · not vulnerable -1.01/bd (-2.31 vs par · 16)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Quarterfinal | Y.Liu | R.Miller – B.Harper | Closed | 16 | +7.0 | +0.44 | +0.25 |
| Quarterfinal | Y.Liu | R.Miller – B.Harper | Open | 16 | -17.7 | -1.11 | -3.88 |
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 |
|---|---|---|---|---|---|---|---|
| +12.1 | Quarterfinal | KRISTENSEN | 23 | 4♦x | ♣K | = | +11 |
| +10.3 | Quarterfinal | KRISTENSEN | 1 | 4♥x | ♠9 | -3 | +12 |
| +6.6 | Quarterfinal | KRISTENSEN | 14 | 3♠ | ♣6 | +2 | +16 |
| +5.7 | Quarterfinal | KRISTENSEN | 32 | 2♥ | ♠3 | -2 | +7 |
| +4.9 | Quarterfinal | KRISTENSEN | 5 | 2NT | ♥9 | +1 | +6 |
| +2.6 | Quarterfinal | KRISTENSEN | 7 | 1NT | ♠5 | = | +6 |
| +2.6 | Quarterfinal | KRISTENSEN | 13 | 4♥ | ♠8 | = | +0 |
| +2.3 | Quarterfinal | KRISTENSEN | 10 | 4♣ | ♠A | -1 | +1 |
| +1.7 | Quarterfinal | KRISTENSEN | 18 | 2♣ | ♥7 | -2 | +0 |
| +1.4 | Quarterfinal | KRISTENSEN | 12 | 2♥ | ♣5 | -2 | +0 |
| +1.0 | Quarterfinal | KRISTENSEN | 21 | 1NT | ♥4 | = | +0 |
| +0.9 | Quarterfinal | KRISTENSEN | 3 | 3NT | ♦2 | +2 | +0 |
| +0.7 | Quarterfinal | KRISTENSEN | 24 | 2♠ | ♥6 | +2 | +1 |
| +0.3 | Quarterfinal | KRISTENSEN | 9 | 2♠ | ♥6 | +1 | +0 |
| +0.3 | Quarterfinal | KRISTENSEN | 15 | 4♠ | ♥10 | = | +0 |
| +0.3 | Quarterfinal | KRISTENSEN | 27 | 4♥ | ♦8 | +1 | +0 |
| -0.6 | Quarterfinal | KRISTENSEN | 2 | 3NT | ♣2 | -1 | -6 |
| -0.6 | Quarterfinal | KRISTENSEN | 26 | 3♦ | ♠10 | -2 | -9 |
| -0.9 | Quarterfinal | KRISTENSEN | 11 | 3♠ | ♣A | +1 | +4 |
| -1.0 | Quarterfinal | KRISTENSEN | 28 | 3NT | ♣8 | = | +1 |
| -1.1 | Quarterfinal | KRISTENSEN | 19 | 4♠ | ♥J | = | -11 |
| -1.7 | Quarterfinal | KRISTENSEN | 16 | 2♠ | ♠Q | +2 | -1 |
| -2.3 | Quarterfinal | KRISTENSEN | 30 | 4♠ | ♦9 | +2 | -11 |
| -3.4 | Quarterfinal | KRISTENSEN | 17 | 3♦ | ♥10 | -1 | -9 |
| -3.6 | Quarterfinal | KRISTENSEN | 4 | 6♥ | ♦J | +1 | -13 |
| -4.6 | Quarterfinal | KRISTENSEN | 29 | 3NT | ♠3 | = | -10 |
| -5.7 | Quarterfinal | KRISTENSEN | 20 | 3♥ | ♦K | -2 | -7 |
| -6.1 | Quarterfinal | KRISTENSEN | 22 | 5♣ | ♠A | +2 | -14 |
| -6.7 | Quarterfinal | KRISTENSEN | 8 | 3NT | ♥K | +1 | -8 |
| -7.0 | Quarterfinal | KRISTENSEN | 25 | 4♥ | ♦A | -1 | -10 |
| -7.4 | Quarterfinal | KRISTENSEN | 31 | 3NT | ♣6 | +1 | -1 |
| -11.7 | Quarterfinal | KRISTENSEN | 6 | 3♥x | ♦A | = | -13 |