CHEN Lei · KUNMING LIJIAN
vs par split: bidding +0.00 · play -0.25
Strength of schedule: opponents averaged +0.07/bd (a tough draw) → opponent-adjusted +0.26/bd
Card play — on target: opening leads 100.0% #1 of 579 · declarer play 62.5% #432 of 579 · defence 92.9% #140 of 579
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (1) | 100.0% (5) |
| Declarer play | 75.0% (4) | 50.0% (4) |
| Defence | 75.0% (4) | 100.0% (10) |
Opening leads by suit led: ♠ 100.0% (1) · ♥ 100.0% (1) · ♦ 100.0% (1) · ♣ 100.0% (3)
vs par by strain: NT -3.58 (12) · a suit +2.25 (16)
vs par by level: part-score -0.56 (9) · game +0.50 (16) · slam -3.33 (3)
By role: declaring +0.16/bd (-3.36 vs par · 14) · defending +0.23/bd (+2.86 vs par · 14)
By vulnerability: vulnerable -0.99/bd (-1.64 vs par · 14) · not vulnerable +1.39/bd (+1.14 vs par · 14)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | Y.Chu | J.Diamond – B.Platnick | Closed | 7 | +1.3 | +0.19 | +2.29 |
| Round 2 | Y.Chu | A.Versace – L.Lauria | Closed | 7 | -0.4 | -0.06 | -1.71 |
| Round 3 | Y.Chu | H.Koo – S.Mok | Closed | 7 | +4.2 | +0.60 | -1.71 |
| Round 5 | Y.Chu | X.Wang – L.Shen | Closed | 7 | +0.4 | +0.06 | +0.14 |
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 |
|---|---|---|---|---|---|---|---|
| +8.6 | Round 2 | CAYNE | 11 | 6♦ | ♥K | +1 | +1 |
| +7.6 | Round 3 | HKJ9 | 21 | 4♠ | ♥J | +2 | +17 |
| +6.6 | Round 1 | DIAMOND | 3 | 4♠x | ♣9 | -2 | +9 |
| +5.9 | Round 2 | CAYNE | 13 | 5♥x | ♥3 | = | +5 |
| +5.3 | Round 5 | QINGHAI BRIDGE ASSOCIATION | 5 | 4♥ | ♣A | -1 | +6 |
| +3.4 | Round 5 | QINGHAI BRIDGE ASSOCIATION | 3 | 3NT | ♠J | -3 | +7 |
| +3.1 | Round 2 | CAYNE | 8 | 3♣ | ♥2 | = | +0 |
| +2.6 | Round 5 | QINGHAI BRIDGE ASSOCIATION | 1 | 3NT | ♥7 | +1 | +1 |
| +2.4 | Round 1 | DIAMOND | 4 | 2♠ | ♥K | = | +6 |
| +2.1 | Round 3 | HKJ9 | 20 | 3NT | ♠7 | = | -13 |
| +1.9 | Round 1 | DIAMOND | 2 | 3NT | ♥5 | -2 | +6 |
| +1.2 | Round 3 | HKJ9 | 19 | 3NT | ♠2 | = | -17 |
| +1.0 | Round 3 | HKJ9 | 17 | 2♠ | ♦7 | -2 | -1 |
| +0.6 | Round 5 | QINGHAI BRIDGE ASSOCIATION | 2 | 3♥ | ♠10 | = | +0 |
| -0.5 | Round 1 | DIAMOND | 1 | 2♠ | ♦J | = | -5 |
| -0.7 | Round 3 | HKJ9 | 18 | 2♥ | ♣A | = | +0 |
| -1.0 | Round 5 | QINGHAI BRIDGE ASSOCIATION | 7 | 4♠ | ♠6 | = | +0 |
| -1.1 | Round 1 | DIAMOND | 5 | 1NT | ♥5 | +1 | -1 |
| -1.8 | Round 2 | CAYNE | 14 | 2♠ | ♥A | -1 | -4 |
| -2.0 | Round 3 | HKJ9 | 15 | 2♠ | ♦5 | = | +0 |
| -3.5 | Round 2 | CAYNE | 10 | 3NT | ♥5 | +1 | +0 |
| -3.9 | Round 1 | DIAMOND | 7 | 3NT | ♥J | +2 | -1 |
| -4.1 | Round 1 | DIAMOND | 6 | 3NT | ♦J | -1 | +2 |
| -4.5 | Round 5 | QINGHAI BRIDGE ASSOCIATION | 6 | 6NT | ♠8 | +1 | -13 |
| -5.0 | Round 3 | HKJ9 | 16 | 6♦ | ♣A | = | +2 |
| -5.8 | Round 2 | CAYNE | 12 | 3NT | ♥3 | -3 | -4 |
| -6.0 | Round 5 | QINGHAI BRIDGE ASSOCIATION | 4 | 4♠ | ♦Q | = | +0 |
| -6.9 | Round 2 | CAYNE | 9 | 3NT | ♦7 | -1 | -10 |