ZENG Qingbin · GSRC & P UNITED
vs par split: bidding -0.60 · play -0.86
Strength of schedule: opponents averaged +0.58/bd (a tough draw) → opponent-adjusted +0.23/bd
Card play — on target: opening leads 72.7% #374 of 579 · declarer play 66.7% #395 of 579 · defence 78.9% #477 of 579
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 72.7% (11) |
| Declarer play | 75.0% (4) | 50.0% (2) |
| Defence | 75.0% (4) | 80.0% (15) |
Opening leads by suit led: ♠ 50.0% (2) · ♥ 66.7% (3) · ♦ 100.0% (3) · ♣ 66.7% (3)
vs par by strain: NT -2.64 (14) · a suit -0.67 (21)
vs par by level: part-score -0.85 (13) · game -2.63 (19) · slam +3.33 (3)
By role: declaring -0.80/bd (-5.94 vs par · 16) · defending +0.03/bd (+2.32 vs par · 19)
By vulnerability: vulnerable +0.18/bd (-2.59 vs par · 17) · not vulnerable -0.85/bd (-0.39 vs par · 18)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 2 | L.Zhang | G.Patelli – P.Parolaro | Open | 7 | +4.2 | +0.60 | +2.29 |
| Round 3 | L.Zhang | M.Karmarkar – B.Dey | Open | 7 | -6.8 | -0.97 | -1.43 |
| Round 5 | L.Zhang | F.Lin – Y.Wang | Closed | 7 | +6.9 | +0.99 | +0.86 |
| Round 6 | L.Zhang | L.Wang – Y.Gong | Open | 7 | -11.3 | -1.61 | -4.57 |
| Round 8 | L.Zhang | C.Balicki – A.Zmudzinski | Closed | 7 | -5.3 | -0.76 | -4.43 |
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 |
|---|---|---|---|---|---|---|---|
| +16.1 | Round 6 | KUNMING LIJIAN | 8 | 5♣x | ♣2 | -7 | +15 |
| +7.4 | Round 5 | DALIAN | 4 | 3NT | ♥2 | -1 | +12 |
| +7.0 | Round 8 | CAYNE | 22 | 4♠ | ♣Q | = | +0 |
| +6.5 | Round 5 | DALIAN | 6 | 7♣ | ♠8 | = | -2 |
| +4.7 | Round 3 | AZURE | 16 | 3NT | ♥4 | +3 | +11 |
| +4.3 | Round 2 | ITALIA | 10 | 3NT | ♥2 | +2 | +1 |
| +4.3 | Round 2 | ITALIA | 14 | 3♣ | ♥A | -3 | +6 |
| +4.1 | Round 8 | CAYNE | 27 | 3NT | ♣5 | -3 | +2 |
| +2.6 | Round 2 | ITALIA | 9 | 3♣ | ♦A | +2 | +6 |
| +2.0 | Round 3 | AZURE | 19 | 3NT | ♥2 | +1 | -17 |
| +2.0 | Round 8 | CAYNE | 26 | 3NT | ♠4 | = | +0 |
| +1.9 | Round 5 | DALIAN | 3 | 3NT | ♠10 | -2 | +6 |
| +1.8 | Round 2 | ITALIA | 12 | 3♦ | ♥7 | +1 | +0 |
| +1.2 | Round 6 | KUNMING LIJIAN | 9 | 3NT | ♣2 | +1 | -12 |
| +0.9 | Round 2 | ITALIA | 8 | 3♥ | ♠10 | -1 | +4 |
| +0.6 | Round 5 | DALIAN | 2 | 3♥ | ♠10 | = | +0 |
| +0.5 | Round 3 | AZURE | 17 | 1NT | ♠K | = | -2 |
| -0.4 | Round 5 | DALIAN | 5 | 3♥ | ♣A | = | +0 |
| -0.6 | Round 3 | AZURE | 18 | 2NT | ♦2 | -2 | +0 |
| -1.0 | Round 5 | DALIAN | 7 | 4♠ | ♥6 | = | +0 |
| -1.1 | Round 2 | ITALIA | 13 | 5♥ | ♠A | = | +0 |
| -2.0 | Round 3 | AZURE | 15 | 2♠ | ♦4 | = | +0 |
| -2.5 | Round 6 | KUNMING LIJIAN | 11 | 3♣ | ♦8 | +2 | -1 |
| -2.6 | Round 8 | CAYNE | 23 | 1NT | ♠9 | -2 | -3 |
| -3.5 | Round 6 | KUNMING LIJIAN | 12 | 3NT | ♦3 | -1 | -10 |
| -3.5 | Round 8 | CAYNE | 28 | 4♥ | ♣6 | -2 | -11 |
| -4.2 | Round 6 | KUNMING LIJIAN | 14 | 5♥ | ♠A | = | -4 |
| -4.5 | Round 3 | AZURE | 21 | 6♠ | ♥J | = | +13 |
| -4.9 | Round 6 | KUNMING LIJIAN | 13 | 2♦ | ♠A | = | -6 |
| -5.7 | Round 8 | CAYNE | 24 | 4♠ | ♦A | -2 | -8 |
| -6.6 | Round 8 | CAYNE | 25 | 4♠ | ♣K | -2 | -11 |
| -6.9 | Round 3 | AZURE | 20 | 2NT | ♥9 | +2 | -15 |
| -8.1 | Round 5 | DALIAN | 1 | 3NT | ♥9 | -1 | -10 |
| -8.6 | Round 2 | ITALIA | 11 | 6♦ | ♥K | +1 | -1 |
| -13.5 | Round 6 | KUNMING LIJIAN | 10 | 4♥x | ♦A | -3 | -14 |