LIU Siyuan · CHINA WFL
vs par split: bidding +0.84 · play +0.12
Strength of schedule: opponents averaged +0.02/bd (an average draw) → opponent-adjusted -0.70/bd
Card play — on target: opening leads 87.5% · declarer play 60.0% · defence 83.3%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 66.7% (3) | 100.0% (5) |
| Declarer play | 100.0% (1) | 50.0% (4) |
| Defence | 100.0% (4) | 78.6% (14) |
Opening leads by suit led: ♥ 50.0% (2) · ♦ 100.0% (3) · ♣ 100.0% (3)
vs par by strain: NT +4.00 (8) · a suit -0.04 (24)
vs par by level: part-score -0.40 (15) · game +1.86 (14) · slam +3.67 (3)
By role: declaring +1.24/bd (+0.29 vs par · 14) · defending -2.24/bd (+1.50 vs par · 18)
By vulnerability: vulnerable -0.58/bd (+3.19 vs par · 16) · not vulnerable -0.86/bd (-1.25 vs par · 16)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Quarterfinal | H.Li | N.Chang – H.Berk | Closed | 16 | -0.9 | -0.06 | -0.44 |
| Quarterfinal | H.Li | S.Amer – N.Chang | Closed | 16 | -22.1 | -1.38 | +2.38 |
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 |
|---|---|---|---|---|---|---|---|
| +10.4 | Quarterfinal | BERK | 6 | 4♥ | ♦A | = | +13 |
| +4.6 | Quarterfinal | BERK | 29 | 3NT | ♠3 | = | +10 |
| +4.4 | Quarterfinal | BERK | 21 | 1NT | ♥4 | -1 | +5 |
| +3.7 | Quarterfinal | BERK | 26 | 2NT | ♠Q | -1 | +11 |
| +3.1 | Quarterfinal | BERK | 20 | 2♠ | ♣K | = | +6 |
| +1.7 | Quarterfinal | BERK | 5 | 3NT | ♥9 | = | +0 |
| +1.7 | Quarterfinal | BERK | 16 | 2♠ | ♦6 | +2 | +1 |
| +1.4 | Quarterfinal | BERK | 14 | 4♠ | ♥9 | +2 | -14 |
| +1.0 | Quarterfinal | BERK | 10 | 5♣ | ♠A | -2 | +2 |
| +1.0 | Quarterfinal | BERK | 28 | 3NT | ♣10 | = | -1 |
| +0.6 | Quarterfinal | BERK | 2 | 3NT | ♦2 | -1 | +6 |
| +0.3 | Quarterfinal | BERK | 3 | 3NT | ♣7 | +1 | +1 |
| +0.1 | Quarterfinal | BERK | 1 | 3♦ | ♠2 | -1 | -5 |
| -0.0 | Quarterfinal | BERK | 19 | 4♠ | ♦2 | +1 | +11 |
| -0.0 | Quarterfinal | BERK | 24 | 2♠ | ♣K | +1 | +0 |
| -0.1 | Quarterfinal | BERK | 11 | 3♠ | ♣A | = | -4 |
| -0.3 | Quarterfinal | BERK | 9 | 2♠ | ♦5 | +1 | +0 |
| -0.3 | Quarterfinal | BERK | 15 | 4♠ | ♣2 | = | +0 |
| -0.3 | Quarterfinal | BERK | 27 | 4♥ | ♦3 | +1 | +0 |
| -1.1 | Quarterfinal | BERK | 31 | 2♥ | ♦K | -1 | -7 |
| -1.4 | Quarterfinal | BERK | 12 | 2♣ | ♥J | +1 | +0 |
| -1.4 | Quarterfinal | BERK | 23 | 3♦ | ♣K | +1 | +0 |
| -1.6 | Quarterfinal | BERK | 18 | 2♦ | ♣3 | = | +0 |
| -1.7 | Quarterfinal | BERK | 8 | 3♣ | ♣J | = | +0 |
| -2.6 | Quarterfinal | BERK | 7 | 3♥ | ♦A | -1 | -6 |
| -3.7 | Quarterfinal | BERK | 13 | 4♥ | ♣4 | +1 | -1 |
| -5.7 | Quarterfinal | BERK | 32 | 2♥ | ♣6 | -2 | -7 |
| -6.0 | Quarterfinal | BERK | 25 | 4♥ | ♦A | +1 | -1 |
| -6.4 | Quarterfinal | BERK | 22 | 6♣ | ♠A | +1 | +11 |
| -6.7 | Quarterfinal | BERK | 17 | 4♠ | ♣7 | = | +0 |
| -8.0 | Quarterfinal | BERK | 4 | 7NT | ♦2 | = | +0 |
| -9.7 | Quarterfinal | BERK | 30 | 6♠ | ♥6 | = | +0 |