DAI Jianming · CHINA OPEN
vs par split: bidding +1.91 · play -0.14
Strength of schedule: opponents averaged -1.28/bd (an easy draw) → opponent-adjusted -0.41/bd
Card play — on target: opening leads 88.9% #6 of 18 · declarer play 100.0% #1 of 18 · defence 89.5% #15 of 18
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 88.9% (9) |
| Declarer play | · | 100.0% (7) |
| Defence | · | 89.5% (19) |
Opening leads by suit led: ♠ 100.0% (2) · ♥ 100.0% (4) · ♦ 0.0% (1) · ♣ 100.0% (2)
vs par by strain: a suit +1.77 (35)
vs par by level: part-score +3.07 (15) · game +0.17 (18) · slam +6.50 (2)
By role: declaring +0.85/bd (-0.55 vs par · 22) · defending +0.89/bd (+3.50 vs par · 26)
By vulnerability: vulnerable +1.30/bd (+2.08 vs par · 24) · not vulnerable +0.45/bd (+1.21 vs par · 24)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Quarterfinal | L.Yang | I.Bonev – V.Batov | Closed | 16 | +30.3 | +1.89 | +1.94 |
| Quarterfinal | L.Yang | I.Bonev – V.Batov | Open | 16 | +20.4 | +1.27 | +1.94 |
| Semifinal | L.Yang | W.Spector – B.Bramley | Open | 16 | -8.8 | -0.55 | +1.06 |
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 |
|---|---|---|---|---|---|---|---|
| +10.4 | Quarterfinal | SHATO ROSENOVO | 6 | 6♠ | ♦Q | -1 | +13 |
| +8.1 | Quarterfinal | SHATO ROSENOVO | 17 | 2♠x | ♥6 | = | +8 |
| +7.7 | Semifinal | SPECTOR | 10 | 3♥ | ♣A | -2 | +3 |
| +6.7 | Quarterfinal | SHATO ROSENOVO | 10 | 2♥ | ♦A | = | -1 |
| +6.3 | Quarterfinal | SHATO ROSENOVO | 14 | 4♥ | ♣4 | -1 | +8 |
| +6.3 | Semifinal | SPECTOR | 7 | 3♦ | ♦10 | -3 | +5 |
| +5.6 | Quarterfinal | SHATO ROSENOVO | 26 | 4♥ | ♥7 | -1 | +6 |
| +5.0 | Quarterfinal | SHATO ROSENOVO | 28 | 3N | ♥9 | -2 | +5 |
| +4.7 | Quarterfinal | SHATO ROSENOVO | 8 | 6♠ | ♣K | = | +0 |
| +4.7 | Quarterfinal | SHATO ROSENOVO | 15 | 4♠ | ♥K | +2 | +8 |
| +4.6 | Quarterfinal | SHATO ROSENOVO | 4 | 3♥ | ♥2 | = | +0 |
| +4.0 | Semifinal | SPECTOR | 13 | 3N | ♠10 | = | +0 |
| +3.6 | Quarterfinal | SHATO ROSENOVO | 13 | 1N | ♥3 | = | +0 |
| +3.3 | Semifinal | SPECTOR | 16 | 2♠ | ♣3 | +1 | +0 |
| +3.1 | Quarterfinal | SHATO ROSENOVO | 24 | 3♦ | ♦9 | = | +6 |
| +2.7 | Semifinal | SPECTOR | 9 | 2♠ | ♦5 | = | -1 |
| +2.6 | Quarterfinal | SHATO ROSENOVO | 32 | 3N | ♦9 | -1 | +12 |
| +2.1 | Quarterfinal | SHATO ROSENOVO | 19 | 4♥ | ♣A | = | +0 |
| +2.0 | Semifinal | SPECTOR | 5 | 3N | ♦J | +2 | +1 |
| +1.7 | Quarterfinal | SHATO ROSENOVO | 12 | 4♠ | ♦A | = | +8 |
| +1.3 | Quarterfinal | SHATO ROSENOVO | 27 | 2♠ | ♣8 | = | +0 |
| +1.0 | Quarterfinal | SHATO ROSENOVO | 2 | 2N | ♥9 | = | +0 |
| +0.7 | Quarterfinal | SHATO ROSENOVO | 9 | 3♦ | ♥A | -3 | +4 |
| +0.7 | Quarterfinal | SHATO ROSENOVO | 22 | 4♥ | ♠Q | +2 | +1 |
| +0.7 | Quarterfinal | SHATO ROSENOVO | 25 | 4♠ | ♣K | +2 | +1 |
| +0.3 | Quarterfinal | SHATO ROSENOVO | 18 | 4♥ | ♣5 | +1 | +0 |
| +0.0 | Quarterfinal | SHATO ROSENOVO | 7 | 4♠ | ♥10 | = | +0 |
| +0.0 | Semifinal | SPECTOR | 2 | 4Nx | ♦Q | -1 | +0 |
| +0.0 | Semifinal | SPECTOR | 4 | 4♥ | ♠5 | = | +0 |
| +0.0 | Semifinal | SPECTOR | 15 | 3N | ♣7 | +3 | +11 |
| -0.6 | Quarterfinal | SHATO ROSENOVO | 21 | 4♠ | ♦10 | +1 | -13 |
| -0.7 | Quarterfinal | SHATO ROSENOVO | 11 | 4♠ | ♦K | +1 | +0 |
| -0.7 | Quarterfinal | SHATO ROSENOVO | 29 | 4♥ | ♦9 | = | +0 |
| -0.7 | Semifinal | SPECTOR | 3 | 1N | ♥3 | -1 | +2 |
| -0.7 | Semifinal | SPECTOR | 6 | 2♥x | ♠6 | -2 | +5 |
| -1.4 | Quarterfinal | SHATO ROSENOVO | 20 | 2♠ | ♥6 | +2 | +10 |
| -1.7 | Quarterfinal | SHATO ROSENOVO | 30 | 4♠ | ♣K | -1 | -4 |
| -1.7 | Quarterfinal | SHATO ROSENOVO | 31 | 4♥ | ♦8 | +1 | -1 |
| -2.9 | Quarterfinal | SHATO ROSENOVO | 3 | 4♥ | ♦Q | +2 | -11 |
| -2.9 | Quarterfinal | SHATO ROSENOVO | 16 | 3N | ♣9 | -1 | -5 |
| -3.0 | Quarterfinal | SHATO ROSENOVO | 23 | 3N | ♣6 | +1 | +0 |
| -3.0 | Semifinal | SPECTOR | 8 | 2♥ | ♦Q | +2 | +6 |
| -3.7 | Quarterfinal | SHATO ROSENOVO | 1 | 4♠ | ♣3 | = | +0 |
| -3.9 | Quarterfinal | SHATO ROSENOVO | 5 | 3♣ | ♠5 | +2 | +7 |
| -4.0 | Semifinal | SPECTOR | 14 | 5♦x | ♣J | -2 | +0 |
| -5.7 | Semifinal | SPECTOR | 11 | 2♠ | ♣A | = | -6 |
| -10.0 | Semifinal | SPECTOR | 1 | 3N | ♣8 | -1 | -10 |
| -10.7 | Semifinal | SPECTOR | 12 | 3N | ♠5 | = | +1 |