🇨🇳 CHEN Sirui · CHINA
vs par split: bidding -1.79 · play +0.07
Strength of schedule: opponents averaged -0.52/bd (an easy draw) → opponent-adjusted -1.34/bd
Card play — on target: opening leads 100.0% · declarer play 100.0% · defence 85.7%
Bidding activity — not a pass: 46.2% (37/80)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 100.0% (1) |
| Declarer play | 100.0% (1) | 100.0% (4) |
| Defence | · | 85.7% (7) |
Opening leads by suit led: ♣ 100.0% (1)
vs par by strain: NT -1.67 (6) · a suit -2.46 (22)
vs par by level: part-score -3.94 (18) · game -0.44 (9) · slam +11.00 (1)
By role: declaring -1.21/bd (-4.27 vs par · 15) · defending -0.38/bd (+0.00 vs par · 13)
By vulnerability: vulnerable -0.17/bd (-1.57 vs par · 14) · not vulnerable -1.47/bd (-3.00 vs par · 14)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Quarterfinal | Z.Yuan | J.Boge – A.Silverstein | Open | 14 | -9.5 | -0.68 | -2.86 |
| Quarterfinal | Z.Yuan | A.Silverstein – J.Boge | Closed | 14 | -13.5 | -0.96 | -1.71 |
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 |
|---|---|---|---|---|---|---|---|
| +10.1 | Quarterfinal | 🇺🇸 USA2 | 26 | 3NT | -3 | +14 | |
| +9.4 | Quarterfinal | 🇺🇸 USA2 | 33 | 6♠ | ♥8 | = | +11 |
| +7.1 | Quarterfinal | 🇺🇸 USA2 | 38 | 4♥x | ♣8 | -2 | +9 |
| +5.7 | Quarterfinal | 🇺🇸 USA2 | 28 | 2♠ | -1 | -5 | |
| +4.3 | Quarterfinal | 🇺🇸 USA2 | 35 | 4♥ | ♣8 | -1 | +6 |
| +3.6 | Quarterfinal | 🇺🇸 USA2 | 22 | 2♦ | = | +5 | |
| +2.6 | Quarterfinal | 🇺🇸 USA2 | 21 | 1NT | +1 | -10 | |
| +2.1 | Quarterfinal | 🇺🇸 USA2 | 40 | 3♦ | ♥5 | -2 | -5 |
| +1.4 | Quarterfinal | 🇺🇸 USA2 | 27 | 3♠ | -1 | -2 | |
| +0.7 | Quarterfinal | 🇺🇸 USA2 | 41 | 1NT | ♠9 | +2 | +1 |
| +0.6 | Quarterfinal | 🇺🇸 USA2 | 30 | 3♦ | ♠4 | +1 | +0 |
| -0.3 | Quarterfinal | 🇺🇸 USA2 | 37 | 2♣ | ♠Q | +1 | +1 |
| -0.6 | Quarterfinal | 🇺🇸 USA2 | 15 | 2♠ | -1 | +8 | |
| -1.9 | Quarterfinal | 🇺🇸 USA2 | 17 | 3NT | = | +1 | |
| -2.6 | Quarterfinal | 🇺🇸 USA2 | 19 | 5♥ | +1 | -1 | |
| -2.9 | Quarterfinal | 🇺🇸 USA2 | 18 | 2♥ | = | -5 | |
| -3.1 | Quarterfinal | 🇺🇸 USA2 | 20 | 2♥ | -3 | -9 | |
| -3.1 | Quarterfinal | 🇺🇸 USA2 | 42 | 3♥ | ♦A | -1 | -4 |
| -3.6 | Quarterfinal | 🇺🇸 USA2 | 24 | 4♦ | +1 | -13 | |
| -3.9 | Quarterfinal | 🇺🇸 USA2 | 36 | 3♠ | ♦2 | -2 | -7 |
| -4.0 | Quarterfinal | 🇺🇸 USA2 | 23 | 4♥ | -1 | -7 | |
| -4.1 | Quarterfinal | 🇺🇸 USA2 | 39 | 3♠ | ♣6 | = | -1 |
| -4.3 | Quarterfinal | 🇺🇸 USA2 | 16 | 3NT | -1 | -6 | |
| -4.3 | Quarterfinal | 🇺🇸 USA2 | 29 | 3NT | ♣Q | +3 | -10 |
| -4.3 | Quarterfinal | 🇺🇸 USA2 | 34 | 3♣ | ♠8 | = | +0 |
| -7.6 | Quarterfinal | 🇺🇸 USA2 | 32 | 2♠ | ♦A | +2 | -10 |
| -9.9 | Quarterfinal | 🇺🇸 USA2 | 25 | 4♠ | = | -10 | |
| -10.1 | Quarterfinal | 🇺🇸 USA2 | 31 | 3♥ | ♣4 | +3 | -15 |