ZHU Bao Qiang · YANG XI MENG
vs par split: bidding -0.23 · play +0.73
Strength of schedule: opponents averaged -0.40/bd (an easy draw) → opponent-adjusted +0.37/bd
Card play — on target: opening leads 100.0% #1 of 671 · declarer play 44.4% #669 of 671 · defence 87.0% #263 of 672
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 100.0% (13) |
| Declarer play | · | 44.4% (9) |
| Defence | · | 87.0% (23) |
Opening leads by suit led: ♠ 100.0% (3) · ♥ 100.0% (2) · ♦ 100.0% (5) · ♣ 100.0% (3)
vs par by strain: a suit +0.50 (48)
vs par by level: part-score +1.53 (19) · game -1.20 (25) · slam +6.25 (4)
By role: declaring +1.26/bd (-2.12 vs par · 33) · defending +0.33/bd (+3.35 vs par · 37)
By vulnerability: vulnerable +0.41/bd (+0.46 vs par · 35) · not vulnerable +1.13/bd (+1.09 vs par · 35)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 7 | J.Zhang | M.Parnis-England – M.Dix | Open | 10 | -8.2 | -0.82 | +0.20 |
| Round 8 | J.Zhang | S.Yang – J.Park | Open | 10 | +3.9 | +0.39 | +0.70 |
| Round 9 | J.Zhang | G.Li – H.Zhao | Open | 10 | +46.9 | +4.69 | +6.30 |
| Round 10 | J.Zhang | F.Alquiros – F.Mayer | Open | 10 | +5.7 | +0.57 | +2.10 |
| Round 11 | J.Zhang | S.Kejriwal – N.Chitlangia | Open | 10 | -2.5 | -0.25 | -0.60 |
| Round 12 | J.Zhang | Y.Zhang – Y.Niu | Closed | 10 | +7.8 | +0.78 | +0.10 |
| Round 13 | J.Zhang | J.Zanalda – J.Gueglio | Open | 10 | +0.3 | +0.03 | -3.40 |
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 |
|---|---|---|---|---|---|---|---|
| +15.4 | Round 12 | SHANGHAI YOUTH 5 | 23 | 6♦ | ♣5 | = | +15 |
| +12.6 | Round 9 | QING HAI | 29 | 2♠x | ♥K | = | +13 |
| +11.8 | Round 9 | QING HAI | 28 | 6♦ | ♠K | = | +11 |
| +9.2 | Round 11 | CHITLANGIA | 19 | 1♠ | ♥K | +3 | +10 |
| +9.1 | Round 9 | QING HAI | 30 | 3♠x | ♣K | = | +9 |
| +8.4 | Round 11 | CHITLANGIA | 16 | 7♠ | ♠5 | -2 | +13 |
| +8.2 | Round 9 | QING HAI | 27 | 3N | ♦3 | +1 | +7 |
| +4.8 | Round 13 | PALERMO | 10 | 3N | ♥K | -1 | +6 |
| +4.7 | Round 12 | SHANGHAI YOUTH 5 | 26 | 1N | ♣6 | -2 | +8 |
| +4.6 | Round 7 | SECOND CHANCE | 7 | 4♠ | ♠Q | -2 | +8 |
| +4.4 | Round 10 | EGAN | 9 | 5♠x | ♥K | -1 | +5 |
| +4.3 | Round 9 | QING HAI | 21 | 3N | ♣8 | +1 | +5 |
| +3.7 | Round 10 | EGAN | 4 | 2N | ♣9 | -2 | +7 |
| +3.4 | Round 8 | KOREA-CHINA | 12 | 3N | ♠9 | -2 | +6 |
| +3.3 | Round 13 | PALERMO | 2 | 4♥ | ♠6 | = | -1 |
| +3.1 | Round 12 | SHANGHAI YOUTH 5 | 27 | 4♥ | ♦Q | +1 | -5 |
| +2.7 | Round 7 | SECOND CHANCE | 8 | 5♦ | ♠A | -3 | +10 |
| +2.7 | Round 8 | KOREA-CHINA | 20 | 3N | ♦4 | +1 | +0 |
| +2.5 | Round 9 | QING HAI | 22 | 3♠ | ♣3 | +1 | +6 |
| +2.4 | Round 8 | KOREA-CHINA | 18 | 2♠ | ♥10 | -1 | +4 |
| +2.4 | Round 8 | KOREA-CHINA | 19 | 2♠ | ♥K | = | +5 |
| +2.3 | Round 9 | QING HAI | 25 | 3N | ♦Q | -1 | +6 |
| +2.3 | Round 11 | CHITLANGIA | 14 | 1N | ♠5 | +4 | +15 |
| +1.3 | Round 12 | SHANGHAI YOUTH 5 | 30 | 4♥ | ♦K | -1 | +5 |
| +1.2 | Round 10 | EGAN | 3 | 2♦ | ♠9 | = | +2 |
| +1.2 | Round 13 | PALERMO | 8 | 4♠ | ♠3 | +2 | -14 |
| +1.1 | Round 8 | KOREA-CHINA | 16 | 2♠ | ♥4 | +1 | +0 |
| +0.9 | Round 8 | KOREA-CHINA | 15 | 2♥ | ♦Q | = | -1 |
| +0.9 | Round 10 | EGAN | 1 | 1N | ♦K | -1 | +4 |
| +0.9 | Round 13 | PALERMO | 5 | 3N | ♠6 | +2 | -12 |
| +0.8 | Round 7 | SECOND CHANCE | 9 | 4♥ | ♦2 | +2 | -11 |
| +0.8 | Round 10 | EGAN | 7 | 2♣ | ♦7 | +2 | -9 |
| +0.7 | Round 9 | QING HAI | 23 | 1N | ♥4 | = | +1 |
| +0.5 | Round 10 | EGAN | 6 | 4♠ | ♣A | = | +0 |
| +0.3 | Round 10 | EGAN | 5 | 4♠ | ♥4 | +2 | +11 |
| +0.2 | Round 7 | SECOND CHANCE | 4 | 4♥ | ♠9 | = | +1 |
| +0.0 | Round 10 | EGAN | 10 | 2♠ | ♣5 | = | +0 |
| -0.0 | Round 13 | PALERMO | 9 | 4♠ | ♥4 | +1 | +0 |
| -0.1 | Round 7 | SECOND CHANCE | 1 | 3N | ♣3 | +1 | -1 |
| -0.1 | Round 7 | SECOND CHANCE | 3 | 2♥ | ♦2 | = | +9 |
| -0.2 | Round 12 | SHANGHAI YOUTH 5 | 21 | 3♥ | ♦5 | = | -1 |
| -0.2 | Round 13 | PALERMO | 3 | 3N | ♥7 | +1 | -1 |
| -0.4 | Round 13 | PALERMO | 7 | 4♥ | ♣A | = | +1 |
| -0.8 | Round 12 | SHANGHAI YOUTH 5 | 25 | 3N | ♥5 | +2 | -6 |
| -0.9 | Round 11 | CHITLANGIA | 20 | 3N | ♠5 | +2 | -13 |
| -1.0 | Round 7 | SECOND CHANCE | 2 | 1N | ♠K | = | +1 |
| -1.1 | Round 8 | KOREA-CHINA | 14 | 2♥ | ♦6 | = | +0 |
| -1.2 | Round 13 | PALERMO | 1 | 4♠ | ♦3 | = | +0 |
| -1.3 | Round 11 | CHITLANGIA | 17 | 4♠ | ♣Q | -1 | -4 |
| -1.5 | Round 8 | KOREA-CHINA | 17 | 3N | ♥9 | +1 | +5 |
| -1.6 | Round 11 | CHITLANGIA | 12 | 2♠ | ♣7 | +1 | -10 |
| -1.7 | Round 7 | SECOND CHANCE | 10 | 2♥ | ♣5 | +2 | -1 |
| -1.8 | Round 8 | KOREA-CHINA | 13 | 4♠ | ♠3 | +1 | -8 |
| -1.9 | Round 9 | QING HAI | 24 | 5♥ | ♦4 | = | +5 |
| -2.1 | Round 11 | CHITLANGIA | 18 | 3♣ | ♠3 | = | +0 |
| -2.6 | Round 10 | EGAN | 8 | 4♠ | ♦A | -1 | +1 |
| -2.6 | Round 11 | CHITLANGIA | 11 | 3N | ♠9 | = | +1 |
| -2.6 | Round 12 | SHANGHAI YOUTH 5 | 28 | 2♠ | ♣5 | +2 | -7 |
| -2.7 | Round 9 | QING HAI | 26 | 2N | ♣5 | +1 | +0 |
| -2.8 | Round 11 | CHITLANGIA | 15 | 5♣x | ♦A | -1 | -7 |
| -3.5 | Round 10 | EGAN | 2 | 5♦ | ♥K | = | +0 |
| -3.6 | Round 12 | SHANGHAI YOUTH 5 | 22 | 3N | ♥A | -1 | -5 |
| -3.6 | Round 13 | PALERMO | 4 | 4♠ | ♦8 | = | +1 |
| -4.1 | Round 12 | SHANGHAI YOUTH 5 | 29 | 4♠x | ♥Q | -1 | -3 |
| -4.5 | Round 13 | PALERMO | 6 | 6♣ | ♥3 | -1 | -14 |
| -4.6 | Round 7 | SECOND CHANCE | 6 | 5♣x | ♦A | -4 | -4 |
| -4.6 | Round 8 | KOREA-CHINA | 11 | 3N | ♥4 | +1 | -4 |
| -5.4 | Round 12 | SHANGHAI YOUTH 5 | 24 | 2♠ | ♦7 | +1 | +0 |
| -9.0 | Round 7 | SECOND CHANCE | 5 | 5♠x | ♦2 | = | -10 |
| -11.1 | Round 11 | CHITLANGIA | 13 | 4♥x | ♠8 | -2 | -11 |