CAO Min Yao · ZHANG
vs par split: bidding +0.25 · play +0.69
Strength of schedule: opponents averaged -0.12/bd (an easy draw) → opponent-adjusted +0.53/bd
Card play — on target: opening leads 53.8% #656 of 671 · declarer play 81.8% #232 of 671 · defence 91.3% #95 of 672
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 53.8% (13) |
| Declarer play | · | 81.8% (11) |
| Defence | · | 91.3% (23) |
Opening leads by suit led: ♠ 100.0% (2) · ♥ 25.0% (4) · ♦ 66.7% (3) · ♣ 50.0% (4)
vs par by strain: a suit +0.94 (52)
vs par by level: part-score +1.12 (16) · game -0.07 (30) · slam +5.50 (6)
By role: declaring +1.35/bd (-0.60 vs par · 40) · defending -0.29/bd (+3.10 vs par · 30)
By vulnerability: vulnerable +0.74/bd (-0.24 vs par · 42) · not vulnerable +0.51/bd (+2.82 vs par · 28)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 6 | CHEN M. Z. | C.Yu – Z.Yan | Closed | 10 | +11.0 | +1.10 | +0.10 |
| Round 7 | R.Rong | C.Chen – Y.Chu | Open | 10 | +17.6 | +1.76 | +1.10 |
| Round 11 | R.Rong | Z.Chen – W.Tu | Closed | 10 | -3.5 | -0.35 | -0.20 |
| Round 12 | R.Rong | U.Kratz – B.Strater | Open | 10 | -7.9 | -0.79 | +0.20 |
| Round 13 | R.Rong | S.Shao – N.Liu | Closed | 10 | +18.1 | +1.81 | +5.20 |
| Round 14 | R.Rong | Y.Wang – W.Chen | Open | 10 | +20.2 | +2.02 | +0.40 |
| Round 15 | R.Rong | V.Tatarkin – E.Shanurin | Open | 10 | -10.1 | -1.01 | +0.10 |
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 |
|---|---|---|---|---|---|---|---|
| +12.9 | Round 14 | HUBEIXINYI CLUB | 19 | 2♥x | ♥2 | = | +11 |
| +10.4 | Round 13 | SHANGHAI KEJU | 5 | 6♦ | ♣K | -1 | +16 |
| +9.8 | Round 6 | NINGBOYONGGUAN | 23 | 4♥ | ♣5 | = | +10 |
| +9.0 | Round 7 | CHEN | 5 | 5♠x | ♦Q | = | +10 |
| +8.7 | Round 7 | CHEN | 8 | 5♦x | ♥Q | = | +6 |
| +8.4 | Round 13 | SHANGHAI KEJU | 10 | 3N | ♣A | = | +10 |
| +8.3 | Round 6 | NINGBOYONGGUAN | 24 | 3N | ♠K | = | +7 |
| +6.3 | Round 12 | GERMANY SENIORS 1 | 21 | 4♥ | ♣2 | = | +8 |
| +5.4 | Round 12 | GERMANY SENIORS 1 | 24 | 2♠ | ♦4 | +1 | +0 |
| +4.8 | Round 14 | HUBEIXINYI CLUB | 18 | 2♣ | ♠A | -1 | +9 |
| +4.6 | Round 13 | SHANGHAI KEJU | 4 | 4♠ | ♣J | +1 | +0 |
| +4.5 | Round 13 | SHANGHAI KEJU | 6 | 6♣ | ♦2 | -1 | +14 |
| +4.4 | Round 15 | MOSCOW | 25 | 6♠ | ♥Q | -1 | +16 |
| +4.2 | Round 11 | XIAMEN | 11 | 3N | ♥2 | +2 | +1 |
| +2.8 | Round 14 | HUBEIXINYI CLUB | 20 | 4♠ | ♠6 | = | +0 |
| +2.4 | Round 14 | HUBEIXINYI CLUB | 16 | 4♠ | ♦J | = | +0 |
| +2.3 | Round 14 | HUBEIXINYI CLUB | 17 | 1Nx | ♠4 | = | +2 |
| +2.2 | Round 14 | HUBEIXINYI CLUB | 12 | 1N | ♠4 | -1 | +5 |
| +2.1 | Round 6 | NINGBOYONGGUAN | 30 | 3N | ♥2 | -2 | +6 |
| +2.0 | Round 11 | XIAMEN | 14 | 5♦ | ♥K | = | -14 |
| +1.9 | Round 15 | MOSCOW | 26 | 2♠ | ♣9 | +1 | +0 |
| +1.6 | Round 11 | XIAMEN | 12 | 2♠ | ♣8 | +1 | +10 |
| +1.6 | Round 14 | HUBEIXINYI CLUB | 11 | 4♠ | ♥A | -2 | +5 |
| +1.3 | Round 11 | XIAMEN | 17 | 4♥ | ♣K | -1 | +4 |
| +1.3 | Round 13 | SHANGHAI KEJU | 7 | 4♥ | ♠7 | +1 | +0 |
| +1.2 | Round 11 | XIAMEN | 19 | 4♠ | ♣J | +1 | +1 |
| +1.2 | Round 13 | SHANGHAI KEJU | 1 | 4♠ | ♦J | = | +0 |
| +1.2 | Round 15 | MOSCOW | 23 | 2♦ | ♥Q | -1 | +5 |
| +1.0 | Round 6 | NINGBOYONGGUAN | 28 | 3N | ♥4 | +3 | +1 |
| +1.0 | Round 7 | CHEN | 2 | 2♠ | ♠5 | -1 | -1 |
| +1.0 | Round 15 | MOSCOW | 29 | 4♠ | ♣A | = | +0 |
| +0.9 | Round 7 | CHEN | 6 | 4♥ | ♥J | +1 | +0 |
| +0.8 | Round 7 | CHEN | 4 | 4♥ | ♠9 | +1 | +0 |
| +0.8 | Round 12 | GERMANY SENIORS 1 | 25 | 3N | ♥5 | +2 | +6 |
| +0.7 | Round 7 | CHEN | 10 | 3♥ | ♣Q | = | +0 |
| +0.5 | Round 6 | NINGBOYONGGUAN | 29 | 2N | ♥6 | = | +0 |
| +0.5 | Round 12 | GERMANY SENIORS 1 | 23 | 3N | ♠A | -1 | +6 |
| +0.5 | Round 15 | MOSCOW | 28 | 2♣ | ♠3 | -2 | +2 |
| +0.2 | Round 13 | SHANGHAI KEJU | 3 | 3N | ♦10 | +1 | +1 |
| +0.2 | Round 15 | MOSCOW | 22 | 4♠ | ♠2 | +1 | +5 |
| +0.1 | Round 7 | CHEN | 1 | 4♥ | ♦8 | = | +1 |
| +0.1 | Round 7 | CHEN | 9 | 4♥ | ♣6 | +1 | +11 |
| +0.1 | Round 11 | XIAMEN | 20 | 3N | ♠5 | +3 | +13 |
| +0.0 | Round 13 | SHANGHAI KEJU | 9 | 4♠ | ♠2 | +1 | +0 |
| -0.2 | Round 6 | NINGBOYONGGUAN | 27 | 4♥ | ♦K | -1 | -5 |
| -0.8 | Round 12 | GERMANY SENIORS 1 | 22 | 3♦ | ♥2 | +1 | +0 |
| -1.1 | Round 6 | NINGBOYONGGUAN | 26 | 4♠ | ♥Q | = | -5 |
| -1.2 | Round 11 | XIAMEN | 13 | 2♥ | ♣3 | = | -1 |
| -1.5 | Round 6 | NINGBOYONGGUAN | 22 | 3♦ | ♥Q | -1 | +4 |
| -1.8 | Round 7 | CHEN | 3 | 2♦ | ♣5 | -1 | -10 |
| -1.9 | Round 7 | CHEN | 7 | 4♠ | ♥6 | -1 | -6 |
| -2.1 | Round 15 | MOSCOW | 27 | 2♥ | ♥2 | +1 | +0 |
| -2.2 | Round 14 | HUBEIXINYI CLUB | 14 | 4♠ | ♦7 | +2 | -14 |
| -2.6 | Round 6 | NINGBOYONGGUAN | 25 | 3♥ | ♥5 | -1 | -6 |
| -2.7 | Round 14 | HUBEIXINYI CLUB | 15 | 1Nx | ♠3 | -1 | -5 |
| -2.8 | Round 12 | GERMANY SENIORS 1 | 26 | 1N | ♦5 | +1 | -6 |
| -2.9 | Round 11 | XIAMEN | 15 | 4♠ | ♣A | -1 | +2 |
| -3.0 | Round 11 | XIAMEN | 18 | 3N | ♠3 | -2 | -5 |
| -3.1 | Round 12 | GERMANY SENIORS 1 | 27 | 4♥ | ♦Q | +1 | +5 |
| -3.5 | Round 12 | GERMANY SENIORS 1 | 29 | 2♠ | ♦K | = | -5 |
| -3.9 | Round 14 | HUBEIXINYI CLUB | 13 | 5♠x | ♣K | = | -9 |
| -4.1 | Round 12 | GERMANY SENIORS 1 | 30 | 3N | ♦5 | -3 | -7 |
| -4.1 | Round 13 | SHANGHAI KEJU | 2 | 4♥ | ♦8 | +1 | +0 |
| -5.0 | Round 15 | MOSCOW | 24 | 3Nx | ♥2 | -2 | -9 |
| -5.3 | Round 6 | NINGBOYONGGUAN | 21 | 6♥ | ♣A | -1 | -11 |
| -5.8 | Round 15 | MOSCOW | 21 | 3N | ♥2 | -2 | -6 |
| -6.4 | Round 15 | MOSCOW | 30 | 4♥ | ♠6 | -2 | -12 |
| -6.6 | Round 12 | GERMANY SENIORS 1 | 28 | 4♠ | ♦K | = | -5 |
| -6.8 | Round 11 | XIAMEN | 16 | 6♠ | ♣9 | -1 | -13 |
| -8.4 | Round 13 | SHANGHAI KEJU | 8 | 6♠ | ♦Q | = | +11 |