YEH Chen · YEH MIX
vs par split: bidding +0.05 · play -1.24
Strength of schedule: opponents averaged -0.01/bd (an average draw) → opponent-adjusted -1.21/bd
Card play — on target: opening leads 75.0% · declarer play 71.4% · defence 81.8%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 60.0% (5) | 100.0% (3) |
| Declarer play | 100.0% (1) | 66.7% (6) |
| Defence | 85.7% (7) | 75.0% (4) |
Opening leads by suit led: ♠ 100.0% (4) · ♥ 50.0% (2) · ♦ 100.0% (1) · ♣ 0.0% (1)
vs par by strain: NT +2.44 (9) · a suit -3.92 (12)
vs par by level: part-score -2.67 (6) · game +0.57 (14) · slam -17.00 (1)
By role: declaring -0.50/bd (-3.70 vs par · 10) · defending -1.84/bd (+1.09 vs par · 11)
By vulnerability: vulnerable -3.81/bd (-5.20 vs par · 10) · not vulnerable +1.17/bd (+2.46 vs par · 11)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 2 | Y.Zhang | S.Gillis – M.Harding | Open | 7 | +5.1 | +0.73 | +1.14 |
| Round 3 | Y.Zhang | S.Gui – L.Wang | Closed | 7 | -17.4 | -2.49 | -2.29 |
| Round 4 | Y.Zhang | X.Wang – Q.Yang | Open | 7 | -12.9 | -1.84 | -2.43 |
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 |
|---|---|---|---|---|---|---|---|
| +8.9 | Round 2 | GILLIS | 8 | 5♠ | ♥2 | -2 | +9 |
| +5.2 | Round 2 | GILLIS | 9 | 3NT | ♠J | -3 | +10 |
| +3.1 | Round 2 | GILLIS | 10 | 3NT | ♥A | +1 | +1 |
| +2.8 | Round 4 | QINGHAI BRIDGE ASSOCIATION | 22 | 3NT | ♥10 | +2 | +13 |
| +2.1 | Round 4 | QINGHAI BRIDGE ASSOCIATION | 27 | 4♣ | ♦K | = | +1 |
| +1.8 | Round 2 | GILLIS | 11 | 2♦ | ♣K | = | -1 |
| +0.4 | Round 3 | GEELY AUTOMOBILE | 17 | 3♦ | ♣A | -1 | -5 |
| +0.1 | Round 3 | GEELY AUTOMOBILE | 16 | 1NT | ♣2 | +3 | -1 |
| +0.1 | Round 4 | QINGHAI BRIDGE ASSOCIATION | 25 | 3NT | ♠4 | = | +0 |
| -0.1 | Round 3 | GEELY AUTOMOBILE | 19 | 4♥ | ♣2 | +1 | +0 |
| -0.3 | Round 2 | GILLIS | 13 | 3NT | ♠2 | = | +0 |
| -1.0 | Round 3 | GEELY AUTOMOBILE | 21 | 5♠ | ♥10 | = | +0 |
| -1.4 | Round 3 | GEELY AUTOMOBILE | 20 | 3NT | ♠9 | +2 | +0 |
| -1.8 | Round 4 | QINGHAI BRIDGE ASSOCIATION | 28 | 3♥ | ♠J | +1 | -1 |
| -2.8 | Round 4 | QINGHAI BRIDGE ASSOCIATION | 24 | 3NT | ♦J | +2 | +0 |
| -5.6 | Round 2 | GILLIS | 14 | 4♠ | ♥2 | = | +1 |
| -5.8 | Round 3 | GEELY AUTOMOBILE | 18 | 3NT | ♥6 | +1 | -1 |
| -6.2 | Round 4 | QINGHAI BRIDGE ASSOCIATION | 26 | 4♠ | ♣A | -1 | -13 |
| -7.1 | Round 4 | QINGHAI BRIDGE ASSOCIATION | 23 | 6♥ | ♣9 | -1 | -17 |
| -8.0 | Round 2 | GILLIS | 12 | 4♠ | ♠4 | -1 | -12 |
| -9.6 | Round 3 | GEELY AUTOMOBILE | 15 | 3♣ | ♠A | = | -9 |