CHEN Yan · BEAUTIFUL YAN
vs par split: bidding +1.57 · play -0.25
Strength of schedule: opponents averaged +0.65/bd (a tough draw) → opponent-adjusted +1.28/bd
Card play — on target: opening leads 90.0% · declarer play 75.0% · defence 94.7%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (3) | 85.7% (7) |
| Declarer play | 100.0% (1) | 66.7% (3) |
| Defence | 100.0% (7) | 91.7% (12) |
Opening leads by suit led: ♠ 100.0% (2) · ♥ 100.0% (3) · ♦ 75.0% (4) · ♣ 100.0% (1)
vs par by strain: NT +2.67 (9) · a suit +0.68 (19)
vs par by level: part-score +1.38 (16) · game +0.20 (10) · slam +6.50 (2)
By role: declaring -0.17/bd (-2.89 vs par · 9) · defending +1.01/bd (+3.32 vs par · 19)
By vulnerability: vulnerable +0.50/bd (+2.50 vs par · 14) · not vulnerable +0.76/bd (+0.14 vs par · 14)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round of 64 | W.Zhang | R.Van Prooijen – A.Wilson | Closed | 14 | +11.1 | +0.79 | +2.36 |
| Round of 64 | W.Zhang | C.Willenken – S.Brock | Closed | 14 | +6.6 | +0.47 | +0.29 |
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 |
|---|---|---|---|---|---|---|---|
| +6.4 | Round of 64 | WILSON | 3 | 3NT | ♥K | -2 | +8 |
| +4.3 | Round of 64 | WILSON | 5 | 2♥ | ♥J | +3 | +6 |
| +4.0 | Round of 64 | WILSON | 16 | 3NT | ♦4 | = | +0 |
| +3.6 | Round of 64 | WILSON | 14 | 3♠ | ♥4 | -2 | +6 |
| +3.5 | Round of 64 | WILSON | 10 | 2♠ | ♣Q | +1 | +1 |
| +3.5 | Round of 64 | WILSON | 11 | 3♥ | ♦10 | +1 | +4 |
| +2.8 | Round of 64 | WILSON | 24 | 3♥ | ♦K | = | +0 |
| +2.7 | Round of 64 | WILSON | 26 | 3♦ | ♥Q | -1 | +0 |
| +2.6 | Round of 64 | WILSON | 17 | 3♥ | ♠Q | -2 | +0 |
| +2.3 | Round of 64 | WILSON | 27 | 2♠ | ♦K | -1 | +5 |
| +1.8 | Round of 64 | WILSON | 15 | 5♠x | ♥A | -2 | +0 |
| +1.4 | Round of 64 | WILSON | 28 | 6♣ | ♣9 | +1 | +11 |
| +1.0 | Round of 64 | WILSON | 19 | 2♦ | ♠5 | = | -1 |
| +0.8 | Round of 64 | WILSON | 9 | 5♣ | ♦4 | -1 | +5 |
| +0.8 | Round of 64 | WILSON | 12 | 3NT | ♥J | +1 | +11 |
| +0.8 | Round of 64 | WILSON | 20 | 3NT | ♠3 | +1 | +1 |
| +0.8 | Round of 64 | WILSON | 23 | 4♠ | ♦A | = | +1 |
| +0.6 | Round of 64 | WILSON | 13 | 2NT | ♦4 | +1 | +10 |
| -0.0 | Round of 64 | WILSON | 1 | 2♥ | ♦K | -1 | +3 |
| -0.0 | Round of 64 | WILSON | 6 | 3♠ | ♥10 | +1 | -6 |
| -1.7 | Round of 64 | WILSON | 2 | 2NT | ♥4 | +3 | -2 |
| -1.7 | Round of 64 | WILSON | 4 | 1NT | ♥K | -1 | +1 |
| -1.7 | Round of 64 | WILSON | 18 | 1NT | ♥6 | = | -5 |
| -2.3 | Round of 64 | WILSON | 7 | 2NT | ♦6 | = | +0 |
| -2.3 | Round of 64 | WILSON | 21 | 4♥ | ♣3 | +1 | +0 |
| -4.4 | Round of 64 | WILSON | 25 | 4♥ | ♦2 | -1 | -10 |
| -5.2 | Round of 64 | WILSON | 22 | 6♦ | ♥K | = | +2 |
| -6.7 | Round of 64 | WILSON | 8 | 4♠ | ♣A | -1 | -14 |