YU Dan · YUNNAN
vs par split: bidding -0.46 · play +0.00
Strength of schedule: opponents averaged +0.44/bd (a tough draw) → opponent-adjusted +0.51/bd
Card play — on target: opening leads 66.7% #132 of 187 · declarer play 72.2% #99 of 187 · defence 87.5% #81 of 187
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 50.0% (2) | 70.0% (10) |
| Declarer play | 75.0% (4) | 71.4% (14) |
| Defence | 80.0% (5) | 89.5% (19) |
Opening leads by suit led: ♠ 100.0% (3) · ♥ 25.0% (4) · ♦ 100.0% (3) · ♣ 50.0% (2)
vs par by strain: NT -2.07 (14) · a suit +0.07 (42)
vs par by level: part-score +1.40 (15) · game -0.90 (40) · slam -11.00 (1)
By role: declaring +0.10/bd (-1.75 vs par · 32) · defending +0.03/bd (+1.25 vs par · 24)
By vulnerability: vulnerable -0.26/bd (+0.46 vs par · 28) · not vulnerable +0.39/bd (-1.39 vs par · 28)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | A.Zhu | P.Gill – J.Dawson | Open | 7 | +6.7 | +0.96 | -0.71 |
| Round 2 | A.Zhu | Z.Zhuang – W.Wang | Open | 7 | +1.8 | +0.26 | -1.00 |
| Round 3 | A.Zhu | C.Ganzer – S.Picus | Open | 7 | +5.4 | +0.77 | -2.43 |
| Round 4 | A.Zhu | V.Aronov – A.Zobu | Open | 7 | +12.4 | +1.77 | +3.00 |
| Round 5 | A.Zhu | J.Voldoire – D.Avon | Open | 7 | +1.3 | +0.19 | +3.57 |
| Round 6 | A.Zhu | S.Brink – C.Rimstedt | Closed | 7 | +4.2 | +0.60 | -0.86 |
| Round 7 | A.Zhu | S.Qi – S.Wu | Closed | 7 | -17.0 | -2.43 | -2.71 |
| Round 8 | A.Zhu | J.Meckstroth – R.Rogers | Open | 7 | -11.0 | -1.57 | -2.57 |
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 |
|---|---|---|---|---|---|---|---|
| +9.9 | Round 4 | ATABEY | 26 | 3♦ | ♣K | = | +14 |
| +9.9 | Round 6 | BRINK | 13 | 4♥x | ♠7 | = | +14 |
| +8.4 | Round 3 | GANZER | 16 | 4♥ | ♠4 | = | +0 |
| +7.2 | Round 5 | ROSSARD | 1 | 4♠ | ♠J | -1 | +10 |
| +5.7 | Round 3 | GANZER | 21 | 4♠ | ♥K | -1 | +8 |
| +5.4 | Round 2 | SAIC | 8 | 4♥ | ♦2 | -1 | +4 |
| +5.3 | Round 5 | ROSSARD | 6 | 4♥ | ♦K | -1 | +9 |
| +5.0 | Round 1 | BINKIE | 1 | 4♠x | ♦K | -3 | +2 |
| +4.9 | Round 1 | BINKIE | 4 | 1NT | ♣4 | +1 | +6 |
| +4.3 | Round 1 | BINKIE | 3 | 3♣ | ♠K | = | -1 |
| +3.2 | Round 6 | BRINK | 11 | 3NT | ♠5 | = | -2 |
| +3.0 | Round 8 | RIVERS | 24 | 4♥ | ♦8 | = | +0 |
| +2.7 | Round 8 | RIVERS | 28 | 4♥ | ♣Q | -1 | +5 |
| +2.4 | Round 7 | GZ. ZHAOHENG1 | 18 | 4♠ | ♣Q | +1 | +0 |
| +2.3 | Round 2 | SAIC | 11 | 5♥ | ♦A | = | +0 |
| +2.3 | Round 4 | ATABEY | 27 | 3♠ | ♥3 | -2 | +5 |
| +2.0 | Round 7 | GZ. ZHAOHENG1 | 21 | 2♠ | ♦2 | = | +0 |
| +1.9 | Round 6 | BRINK | 8 | 2NT | ♥5 | = | -1 |
| +1.3 | Round 3 | GANZER | 19 | 3NT | ♣4 | +1 | +1 |
| +1.2 | Round 4 | ATABEY | 23 | 3NT | ♠6 | = | +0 |
| +1.1 | Round 1 | BINKIE | 6 | 4♥ | ♥7 | +1 | +0 |
| +1.1 | Round 5 | ROSSARD | 5 | 1♠ | ♦4 | = | +0 |
| +0.9 | Round 2 | SAIC | 9 | 2♦ | ♦3 | -3 | +5 |
| +0.8 | Round 3 | GANZER | 20 | 3NT | ♦Q | +1 | -1 |
| +0.7 | Round 4 | ATABEY | 28 | 1NT | ♠J | -2 | +0 |
| +0.6 | Round 4 | ATABEY | 22 | 4♠ | ♦A | +1 | +0 |
| +0.5 | Round 1 | BINKIE | 2 | 3NT | ♠A | = | +1 |
| +0.4 | Round 8 | RIVERS | 22 | 4♥ | ♥2 | = | -1 |
| +0.4 | Round 8 | RIVERS | 23 | 3NT | ♠3 | +2 | +2 |
| -0.3 | Round 4 | ATABEY | 24 | 2♠ | ♣A | -1 | +2 |
| -0.8 | Round 7 | GZ. ZHAOHENG1 | 20 | 4♠ | ♦A | +1 | +0 |
| -1.1 | Round 6 | BRINK | 10 | 4♠ | ♣5 | = | +0 |
| -1.4 | Round 2 | SAIC | 14 | 4♠ | ♣J | +1 | -14 |
| -1.4 | Round 5 | ROSSARD | 3 | 3♠ | ♥2 | +1 | -1 |
| -1.6 | Round 5 | ROSSARD | 4 | 4♠ | ♦5 | +1 | +0 |
| -1.7 | Round 2 | SAIC | 12 | 4♥ | ♣7 | = | +0 |
| -1.7 | Round 2 | SAIC | 13 | 3NT | ♦6 | +4 | -2 |
| -1.8 | Round 1 | BINKIE | 5 | 2♦ | ♦4 | = | -5 |
| -1.8 | Round 8 | RIVERS | 27 | 4♠ | ♥3 | +1 | -1 |
| -2.0 | Round 2 | SAIC | 10 | 4♠ | ♦7 | +1 | +0 |
| -2.0 | Round 4 | ATABEY | 25 | 3♦ | ♠A | +1 | +0 |
| -2.3 | Round 7 | GZ. ZHAOHENG1 | 17 | 4♠ | ♥2 | +2 | -1 |
| -2.5 | Round 6 | BRINK | 12 | 2♥ | ♦6 | -3 | +3 |
| -2.9 | Round 3 | GANZER | 18 | 3NT | ♣3 | -1 | -13 |
| -3.2 | Round 6 | BRINK | 9 | 3NT | ♥2 | = | -14 |
| -3.3 | Round 7 | GZ. ZHAOHENG1 | 16 | 2♠ | ♣8 | +2 | -6 |
| -3.4 | Round 3 | GANZER | 15 | 4♠ | ♦Q | -1 | -6 |
| -4.0 | Round 6 | BRINK | 14 | 4♠x | ♥8 | -1 | -6 |
| -4.0 | Round 7 | GZ. ZHAOHENG1 | 15 | 3NT | ♣Q | = | +0 |
| -4.2 | Round 5 | ROSSARD | 2 | 3NT | ♥2 | -1 | -6 |
| -4.5 | Round 3 | GANZER | 17 | 4♥ | ♦2 | -2 | -6 |
| -5.1 | Round 5 | ROSSARD | 7 | 4♠ | ♠2 | +2 | +13 |
| -6.4 | Round 8 | RIVERS | 25 | 6♥ | ♠2 | -1 | -11 |
| -7.3 | Round 1 | BINKIE | 7 | 4♥x | ♣3 | -2 | -8 |
| -9.3 | Round 8 | RIVERS | 26 | 4♠ | ♥8 | -1 | -12 |
| -11.0 | Round 7 | GZ. ZHAOHENG1 | 19 | 5♥x | ♠J | -4 | -12 |