PIEDRA Fernando · PIEDRA
vs par split: bidding +1.00 · play +0.12
Strength of schedule: opponents averaged +0.02/bd (an average draw) → opponent-adjusted -0.84/bd
Card play — on target: opening leads 75.0% · declarer play 83.3% · defence 90.9%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (2) | 50.0% (2) |
| Declarer play | 100.0% (1) | 80.0% (5) |
| Defence | 66.7% (3) | 100.0% (8) |
Opening leads by suit led: ♥ 50.0% (2) · ♣ 100.0% (2)
vs par by strain: NT +1.60 (5) · a suit +1.00 (19)
vs par by level: part-score -3.83 (6) · game +1.25 (16) · slam +15.00 (2)
By role: declaring -1.15/bd (-0.39 vs par · 13) · defending -0.52/bd (+2.91 vs par · 11)
By vulnerability: vulnerable +1.34/bd (+3.17 vs par · 12) · not vulnerable -3.06/bd (-0.92 vs par · 12)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round of 16 | A.Wildavsky | J.Li – J.Liu | Open | 12 | -5.8 | -0.48 | +2.58 |
| Round of 16 | A.Wildavsky | R.Lian – H.Shi | Closed | 12 | -14.8 | -1.23 | -0.33 |
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 |
|---|---|---|---|---|---|---|---|
| +13.2 | Round of 16 | CHINA OPEN | 6 | 6♥ | ♠5 | = | +14 |
| +4.9 | Round of 16 | CHINA OPEN | 4 | 4♥ | ♣2 | -1 | +12 |
| +4.8 | Round of 16 | CHINA OPEN | 10 | 7♣ | ♣9 | -1 | +16 |
| +4.4 | Round of 16 | CHINA OPEN | 24 | 3NT | ♠4 | -2 | +6 |
| +4.0 | Round of 16 | CHINA OPEN | 22 | 4♠ | ♣6 | +1 | +0 |
| +2.6 | Round of 16 | CHINA OPEN | 20 | 4♠x | ♣6 | -2 | +4 |
| +2.3 | Round of 16 | CHINA OPEN | 12 | 3♥ | ♠3 | = | +6 |
| +2.3 | Round of 16 | CHINA OPEN | 19 | 2♠ | ♥K | -1 | +4 |
| +1.6 | Round of 16 | CHINA OPEN | 21 | 3NTx | ♥5 | -1 | +3 |
| +0.6 | Round of 16 | CHINA OPEN | 11 | 5♥ | ♣K | = | +0 |
| +0.5 | Round of 16 | CHINA OPEN | 13 | 4♥ | ♣4 | = | +1 |
| +0.1 | Round of 16 | CHINA OPEN | 2 | 3NT | ♥9 | = | +0 |
| -1.0 | Round of 16 | CHINA OPEN | 16 | 4♠ | ♦10 | +1 | +0 |
| -1.1 | Round of 16 | CHINA OPEN | 3 | 3NT | ♠5 | +1 | -1 |
| -2.9 | Round of 16 | CHINA OPEN | 5 | 5♦x | ♥8 | -4 | +12 |
| -3.2 | Round of 16 | CHINA OPEN | 9 | 3♠ | ♥2 | -1 | -5 |
| -3.8 | Round of 16 | CHINA OPEN | 17 | 3NT | ♣10 | = | +0 |
| -4.5 | Round of 16 | CHINA OPEN | 23 | 4♠ | ♥Q | = | +0 |
| -5.2 | Round of 16 | CHINA OPEN | 14 | 4♥ | ♣10 | = | -3 |
| -6.4 | Round of 16 | CHINA OPEN | 7 | 2♠ | ♦Q | -2 | -7 |
| -6.9 | Round of 16 | CHINA OPEN | 15 | 1♥ | ♠K | -2 | -14 |
| -8.4 | Round of 16 | CHINA OPEN | 1 | 4♠x | ♥5 | -3 | -9 |
| -8.8 | Round of 16 | CHINA OPEN | 18 | 4♥ | ♦2 | -1 | -5 |
| -9.7 | Round of 16 | CHINA OPEN | 8 | 2♥x | ♣3 | +1 | -7 |