ZHANG Yalan · YEH MIX
vs par split: bidding +1.00 · play -1.21
Strength of schedule: opponents averaged +0.20/bd (a tough draw) → opponent-adjusted -1.26/bd
Card play — on target: opening leads 100.0% · declarer play 70.0% · defence 88.9%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (3) | 100.0% (5) |
| Declarer play | 66.7% (3) | 71.4% (7) |
| Defence | 83.3% (6) | 91.7% (12) |
Opening leads by suit led: ♠ 100.0% (4) · ♥ 100.0% (3) · ♦ 100.0% (1)
vs par by strain: NT -1.15 (13) · a suit +0.21 (29)
vs par by level: part-score -0.36 (11) · game -0.17 (30) · slam +0.00 (1)
By role: declaring -0.84/bd (-2.88 vs par · 24) · defending -2.29/bd (+3.33 vs par · 18)
By vulnerability: vulnerable -2.23/bd (-1.67 vs par · 21) · not vulnerable -0.69/bd (+1.24 vs par · 21)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round of 32 | C.Yeh | B.Tarnovski – R.Pachtman | Open | 14 | -20.6 | -1.47 | -0.50 |
| Round of 32 | D.Chen | B.Tarnovski – R.Pachtman | Open | 14 | -8.0 | -0.57 | -0.36 |
| Round of 32 | D.Chen | D.Filipowicz – K.Martens | Open | 14 | -32.7 | -2.34 | +0.21 |
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 |
|---|---|---|---|---|---|---|---|
| +8.4 | Round of 32 | ERA | 7 | 4♠ | ♥2 | -1 | +12 |
| +6.0 | Round of 32 | ERA | 17 | 3NT | ♠2 | = | +0 |
| +4.9 | Round of 32 | ERA | 3 | 4♠ | ♠2 | = | +0 |
| +4.1 | Round of 32 | ERA | 22 | 4♥ | ♠7 | -1 | +6 |
| +3.9 | Round of 32 | ERA | 28 | 2♥ | ♠5 | +2 | +6 |
| +3.8 | Round of 32 | ERA | 24 | 4♠ | ♣A | = | +0 |
| +2.6 | Round of 32 | ERA | 39 | 2♠ | ♦2 | = | +5 |
| +2.5 | Round of 32 | ERA | 23 | 4♠ | ♦5 | = | +0 |
| +2.5 | Round of 32 | ERA | 41 | 3NT | ♠Q | +3 | +1 |
| +1.9 | Round of 32 | ERA | 30 | 4♠ | ♥2 | = | +3 |
| +1.8 | Round of 32 | ERA | 8 | 5♦ | ♣A | +1 | +11 |
| +1.1 | Round of 32 | ERA | 6 | 4♠ | ♦3 | +1 | +1 |
| +0.8 | Round of 32 | ERA | 19 | 3♥ | ♠A | = | +6 |
| +0.3 | Round of 32 | ERA | 27 | 4♥ | ♠K | = | +0 |
| +0.1 | Round of 32 | ERA | 9 | 3♦ | ♣4 | +1 | +0 |
| +0.1 | Round of 32 | ERA | 16 | 4♥ | ♦K | = | +0 |
| +0.1 | Round of 32 | ERA | 31 | 2♠ | ♦5 | = | +0 |
| -0.6 | Round of 32 | ERA | 10 | 4♠ | ♦2 | -1 | -6 |
| -1.3 | Round of 32 | ERA | 12 | 2♥ | ♣5 | +1 | +0 |
| -1.8 | Round of 32 | ERA | 32 | 3NT | ♥10 | +3 | +13 |
| -2.1 | Round of 32 | ERA | 38 | 3NT | ♥7 | -1 | -5 |
| -2.2 | Round of 32 | ERA | 2 | 1NT | ♠10 | +3 | -2 |
| -2.3 | Round of 32 | ERA | 29 | 3NT | ♠10 | +3 | +11 |
| -2.6 | Round of 32 | ERA | 5 | 3♠ | ♦3 | = | +0 |
| -2.7 | Round of 32 | ERA | 21 | 3NT | ♠3 | = | +0 |
| -2.7 | Round of 32 | ERA | 35 | 3♦ | ♥2 | = | -6 |
| -2.9 | Round of 32 | ERA | 26 | 4♣ | ♦A | +2 | -10 |
| -3.1 | Round of 32 | ERA | 34 | 3NT | ♣10 | -2 | -5 |
| -3.3 | Round of 32 | ERA | 11 | 3NT | ♦2 | -2 | -6 |
| -3.3 | Round of 32 | ERA | 18 | 4♠ | ♥K | +1 | +0 |
| -3.5 | Round of 32 | ERA | 36 | 4♠x | ♥4 | -3 | -2 |
| -3.7 | Round of 32 | ERA | 1 | 5♦x | ♠10 | -2 | -4 |
| -4.3 | Round of 32 | ERA | 25 | 4♠ | ♥2 | +1 | +13 |
| -4.4 | Round of 32 | ERA | 40 | 3NT | ♠7 | +1 | +0 |
| -4.6 | Round of 32 | ERA | 33 | 3NT | ♥J | -1 | -12 |
| -4.7 | Round of 32 | ERA | 14 | 3NT | ♦J | -1 | -10 |
| -5.4 | Round of 32 | ERA | 42 | 4♠ | ♣K | = | +0 |
| -5.7 | Round of 32 | ERA | 13 | 3♥ | ♣A | -2 | -3 |
| -6.0 | Round of 32 | ERA | 15 | 4♥ | ♣Q | -1 | -13 |
| -9.9 | Round of 32 | ERA | 37 | 3NT | ♠4 | +1 | +0 |
| -10.3 | Round of 32 | ERA | 20 | 5♣ | ♠7 | -1 | -13 |
| -12.8 | Round of 32 | ERA | 4 | 6♠ | ♣K | = | +0 |