ZHENG Zuanpei · SHENZHEN
vs par split: bidding +0.48 · play +0.48
Strength of schedule: opponents averaged +0.12/bd (a tough draw) → opponent-adjusted -0.58/bd
Card play — on target: opening leads 90.9% #13 of 187 · declarer play 50.0% #169 of 187 · defence 85.7% #111 of 187
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (6) | 80.0% (5) |
| Declarer play | 100.0% (2) | 40.0% (10) |
| Defence | 71.4% (7) | 92.9% (14) |
Opening leads by suit led: ♠ 100.0% (4) · ♥ 0.0% (1) · ♦ 100.0% (4) · ♣ 100.0% (2)
vs par by strain: NT +2.70 (10) · a suit +0.41 (32)
vs par by level: part-score -2.11 (9) · game +1.50 (32) · slam +11.00 (1)
By role: declaring -2.31/bd (-1.71 vs par · 21) · defending +0.90/bd (+3.62 vs par · 21)
By vulnerability: vulnerable -1.12/bd (+0.35 vs par · 20) · not vulnerable -0.32/bd (+1.50 vs par · 22)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | J.Shen | J.Mcallister – M.Zur-Campanile | Closed | 7 | -10.2 | -1.46 | +0.00 |
| Round 2 | J.Shen | C.Nunes – S.Quinn | Open | 7 | -12.7 | -1.81 | -0.29 |
| Round 3 | J.Shen | J.Zhao – K.Sanborn | Open | 7 | +17.7 | +2.53 | +5.71 |
| Round 6 | J.Shen | J.Dai – Y.Zhang | Open | 7 | -14.3 | -2.04 | +0.43 |
| Round 7 | J.Shen | P.Cronier – C.D'Ovidio | Open | 7 | -18.5 | -2.64 | -2.57 |
| Round 8 | J.Shen | Y.Chen – L.Gan | Closed | 7 | +8.5 | +1.21 | +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 |
|---|---|---|---|---|---|---|---|
| +9.7 | Round 8 | SUZHOUTAIHU | 22 | 6♥ | ♠10 | -1 | +11 |
| +9.0 | Round 3 | MOSS | 19 | 3NT | ♣4 | -1 | +10 |
| +8.1 | Round 8 | SUZHOUTAIHU | 24 | 4♥ | ♠Q | -2 | +11 |
| +7.0 | Round 1 | MCALLISTER | 1 | 5♦ | ♥A | -1 | +10 |
| +4.5 | Round 3 | MOSS | 17 | 4♠ | ♦Q | -2 | +6 |
| +3.4 | Round 3 | MOSS | 16 | 2NT | ♠Q | -2 | +11 |
| +2.9 | Round 3 | MOSS | 18 | 3NT | ♣3 | -1 | +13 |
| +2.7 | Round 2 | NUNES | 8 | 4♠x | ♦A | -2 | +5 |
| +2.5 | Round 6 | GEELY AUTOMOBILE | 8 | 4♠ | ♥3 | -1 | +5 |
| +2.1 | Round 3 | MOSS | 21 | 4♥ | ♣2 | +1 | +0 |
| +1.8 | Round 8 | SUZHOUTAIHU | 27 | 4♠ | ♥5 | +1 | +1 |
| +1.5 | Round 1 | MCALLISTER | 3 | 3♠ | ♣A | = | +7 |
| +1.4 | Round 2 | NUNES | 11 | 5♦x | ♦Q | -2 | +4 |
| +1.4 | Round 2 | NUNES | 14 | 4♠ | ♣3 | +1 | +14 |
| +1.4 | Round 7 | PZIM | 17 | 4♠ | ♣Q | +1 | +0 |
| +1.1 | Round 6 | GEELY AUTOMOBILE | 10 | 4♠ | ♣5 | = | +0 |
| +1.1 | Round 6 | GEELY AUTOMOBILE | 13 | 4♥ | ♠6 | -1 | -3 |
| +0.7 | Round 8 | SUZHOUTAIHU | 23 | 3NT | ♠2 | +1 | -1 |
| +0.4 | Round 6 | GEELY AUTOMOBILE | 14 | 4♥ | ♦10 | -1 | +3 |
| -0.1 | Round 7 | PZIM | 20 | 4♥ | ♦K | = | -1 |
| -0.3 | Round 2 | NUNES | 13 | 3NT | ♥3 | +2 | +0 |
| -0.9 | Round 2 | NUNES | 9 | 2♥ | ♣10 | -3 | -5 |
| -1.1 | Round 1 | MCALLISTER | 6 | 4♥ | ♣K | +1 | +0 |
| -1.6 | Round 3 | MOSS | 20 | 3NT | ♦J | +2 | +0 |
| -2.0 | Round 1 | MCALLISTER | 5 | 1NT | ♠9 | -1 | +2 |
| -2.0 | Round 7 | PZIM | 21 | 5♥ | ♠K | -2 | +0 |
| -2.4 | Round 7 | PZIM | 18 | 4♠ | ♣Q | +1 | +0 |
| -2.6 | Round 3 | MOSS | 15 | 2♠ | ♦Q | +1 | +0 |
| -2.7 | Round 8 | SUZHOUTAIHU | 28 | 4♥ | ♥A | -1 | -5 |
| -3.2 | Round 6 | GEELY AUTOMOBILE | 11 | 3NT | ♦K | = | +2 |
| -3.5 | Round 7 | PZIM | 16 | 4♠ | ♦J | +1 | -1 |
| -4.3 | Round 8 | SUZHOUTAIHU | 26 | 4♠ | ♥Q | = | +0 |
| -4.5 | Round 1 | MCALLISTER | 4 | 2♥ | ♦3 | = | -6 |
| -4.6 | Round 1 | MCALLISTER | 7 | 4♠ | ♥3 | -1 | -6 |
| -4.7 | Round 7 | PZIM | 19 | 4♠ | ♦10 | -1 | -5 |
| -4.8 | Round 8 | SUZHOUTAIHU | 25 | 3NT | ♠9 | +2 | +0 |
| -5.9 | Round 6 | GEELY AUTOMOBILE | 12 | 3NT | ♦9 | -1 | -10 |
| -6.5 | Round 1 | MCALLISTER | 2 | 4♣ | ♦5 | = | -7 |
| -7.2 | Round 7 | PZIM | 15 | 2♥ | ♠7 | = | -11 |
| -8.3 | Round 2 | NUNES | 10 | 2♠ | ♣2 | +2 | -10 |
| -8.7 | Round 2 | NUNES | 12 | 4♥ | ♥6 | -1 | -10 |
| -10.3 | Round 6 | GEELY AUTOMOBILE | 9 | 4♠ | ♥6 | -2 | +6 |