YEH Chen · YEH BROS
vs par split: bidding -0.16 · play -1.33
Strength of schedule: opponents averaged +0.07/bd (a tough draw) → opponent-adjusted -0.88/bd
Card play — on target: opening leads 76.5% · declarer play 66.7% · defence 75.0%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 50.0% (4) | 84.6% (13) |
| Declarer play | 60.0% (5) | 69.2% (13) |
| Defence | 66.7% (9) | 78.9% (19) |
Opening leads by suit led: ♠ 57.1% (7) · ♥ 100.0% (3) · ♦ 100.0% (3) · ♣ 75.0% (4)
vs par by strain: NT -2.23 (22) · a suit -1.09 (42)
vs par by level: part-score -0.31 (26) · game -2.35 (37) · slam +0.00 (1)
By role: declaring -0.65/bd (-2.37 vs par · 35) · defending -1.31/bd (-0.41 vs par · 29)
By vulnerability: vulnerable -1.19/bd (-2.47 vs par · 32) · not vulnerable -0.70/bd (-0.50 vs par · 32)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Quarterfinal | Y.Zhang | J.Ventin – J.Larsson | Open | 16 | +4.7 | +0.29 | -2.19 |
| Semifinal | Y.Zhang | J.Pszczola – M.Wortel | Open | 16 | -18.1 | -1.13 | -2.12 |
| Final | Y.Zhang | J.Dai – L.Wang | Open | 16 | -20.5 | -1.28 | +1.12 |
| Final | Y.Zhang | J.Dai – L.Wang | Open | 16 | -26.8 | -1.68 | -2.75 |
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 |
|---|---|---|---|---|---|---|---|
| +10.7 | Final | SAIC RED | 12 | 2♥ | ♣2 | +2 | +12 |
| +10.4 | Quarterfinal | VENTIN | 1 | 4♠x | ♣9 | -2 | +5 |
| +8.0 | Semifinal | MILNER | 10 | 3NT | ♦10 | = | +0 |
| +7.7 | Semifinal | MILNER | 3 | 2♦x | ♠4 | -1 | +7 |
| +7.0 | Final | SAIC RED | 1 | 3NT | ♦Q | = | +7 |
| +6.1 | Quarterfinal | VENTIN | 9 | 5♥x | ♠A | -1 | +0 |
| +4.7 | Final | SAIC RED | 5 | 3♦ | ♠5 | -1 | +5 |
| +3.9 | Quarterfinal | VENTIN | 13 | 1♦ | ♠J | +1 | -1 |
| +3.3 | Final | SAIC RED | 15 | 2♠ | ♦A | +2 | +2 |
| +3.0 | Semifinal | MILNER | 2 | 1NT | ♣Q | -1 | -1 |
| +2.7 | Final | SAIC RED | 47 | 2♠ | ♥6 | = | +0 |
| +2.4 | Quarterfinal | VENTIN | 10 | 1NT | ♥2 | +3 | +2 |
| +2.3 | Quarterfinal | VENTIN | 12 | 3♦ | ♥7 | -1 | +6 |
| +2.0 | Semifinal | MILNER | 6 | 1NT | ♣6 | -1 | +2 |
| +2.0 | Semifinal | MILNER | 16 | 3♠ | ♣K | = | -7 |
| +1.7 | Quarterfinal | VENTIN | 16 | 4♠x | ♦A | -2 | -11 |
| +1.6 | Quarterfinal | VENTIN | 5 | 1NT | ♥8 | = | -1 |
| +1.0 | Final | SAIC RED | 11 | 3NT | ♣4 | = | +11 |
| +0.7 | Final | SAIC RED | 34 | 3NT | ♠8 | -2 | +0 |
| +0.7 | Final | SAIC RED | 40 | 1NT | ♣A | = | -7 |
| +0.4 | Quarterfinal | VENTIN | 4 | 2♠ | ♦A | = | -1 |
| +0.3 | Semifinal | MILNER | 14 | 4♠ | ♥4 | +2 | -11 |
| +0.1 | Quarterfinal | VENTIN | 14 | 3NT | ♥8 | +2 | +1 |
| +0.0 | Final | SAIC RED | 8 | 3♠ | ♣A | = | +0 |
| +0.0 | Final | SAIC RED | 36 | 3NT | ♠5 | +1 | -12 |
| +0.0 | Final | SAIC RED | 38 | 4♠ | ♥3 | -1 | +6 |
| +0.0 | Final | SAIC RED | 41 | 4♠ | ♣K | = | +0 |
| +0.0 | Final | SAIC RED | 42 | 4♠ | ♠2 | +1 | +0 |
| +0.0 | Final | SAIC RED | 43 | 4♠ | ♥2 | = | +0 |
| -0.3 | Semifinal | MILNER | 8 | 4♥ | ♣J | +1 | -4 |
| -0.3 | Final | SAIC RED | 46 | 4♥ | ♣A | = | -1 |
| -0.3 | Final | SAIC RED | 48 | 2NT | ♥3 | -1 | -5 |
| -0.6 | Quarterfinal | VENTIN | 8 | 2♦x | ♠3 | -1 | +0 |
| -0.7 | Final | SAIC RED | 45 | 3NT | ♠T | +2 | -1 |
| -0.9 | Quarterfinal | VENTIN | 11 | 5♥ | ♣8 | = | +0 |
| -1.0 | Final | SAIC RED | 10 | 4♣ | ♠A | -1 | -5 |
| -1.3 | Semifinal | MILNER | 5 | 3NT | ♠3 | +2 | -1 |
| -1.3 | Final | SAIC RED | 9 | 4♠ | ♣A | -2 | +9 |
| -1.7 | Semifinal | MILNER | 9 | 2♦ | ♥A | = | +0 |
| -1.7 | Semifinal | MILNER | 13 | 5♥x | ♦3 | -1 | +9 |
| -1.9 | Quarterfinal | VENTIN | 2 | 4♥ | ♦4 | -1 | -10 |
| -2.1 | Quarterfinal | VENTIN | 15 | 1NT | ♠Q | -1 | -1 |
| -3.0 | Final | SAIC RED | 2 | 4♥ | ♠4 | = | +0 |
| -3.1 | Quarterfinal | VENTIN | 3 | 3NT | ♣J | -2 | -8 |
| -3.3 | Final | SAIC RED | 3 | 3♠ | ♥Q | -3 | +10 |
| -3.3 | Final | SAIC RED | 4 | 4♠ | ♠10 | = | -10 |
| -3.3 | Final | SAIC RED | 6 | 7♠x | ♥3 | -2 | +0 |
| -3.3 | Final | SAIC RED | 14 | 4♥ | ♦2 | -4 | -2 |
| -3.3 | Final | SAIC RED | 33 | 2♠ | ♥9 | = | -5 |
| -3.3 | Final | SAIC RED | 37 | 1NT | ♣5 | = | -6 |
| -3.7 | Semifinal | MILNER | 15 | 3♥ | ♠2 | -1 | -5 |
| -4.0 | Semifinal | MILNER | 12 | 5♣ | ♠10 | = | +0 |
| -4.7 | Semifinal | MILNER | 4 | 1NT | ♣4 | +1 | -1 |
| -4.7 | Semifinal | MILNER | 11 | 4♥ | ♣A | -2 | -6 |
| -6.7 | Final | SAIC RED | 39 | 4♥ | ♠4 | = | +0 |
| -6.9 | Quarterfinal | VENTIN | 7 | 3NTx | ♦2 | -1 | -8 |
| -7.0 | Semifinal | MILNER | 7 | 3NT | ♥J | -2 | -8 |
| -7.7 | Final | SAIC RED | 13 | 4♥ | ♠K | = | -10 |
| -8.0 | Final | SAIC RED | 44 | 3NT | ♥J | -1 | -12 |
| -8.3 | Final | SAIC RED | 35 | 5♦ | +1 | -1 | |
| -8.7 | Quarterfinal | VENTIN | 6 | 3♠ | ♥A | +1 | -8 |
| -10.0 | Final | SAIC RED | 16 | 5♥ | ♠2 | -1 | -11 |
| -11.0 | Final | SAIC RED | 7 | 3NT | ♠10 | = | +0 |
| -12.0 | Semifinal | MILNER | 1 | 4♥ | ♣4 | = | -8 |