KANG Meng · CHINA OPN(B)
vs par split: bidding +0.04 · play +0.62
Strength of schedule: opponents averaged +0.36/bd (a tough draw) → opponent-adjusted +0.63/bd
Card play — on target: opening leads 73.7% #189 of 310 · declarer play 71.4% #192 of 310 · defence 87.9% #129 of 311
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 66.7% (3) | 75.0% (16) |
| Declarer play | 66.7% (6) | 75.0% (8) |
| Defence | 66.7% (6) | 92.6% (27) |
Opening leads by suit led: ♠ 100.0% (4) · ♥ 71.4% (7) · ♦ 100.0% (1) · ♣ 57.1% (7)
vs par by strain: NT +2.53 (15) · a suit -0.02 (41)
vs par by level: part-score -0.24 (25) · game +1.14 (28) · slam +3.67 (3)
By role: declaring +1.75/bd (-0.22 vs par · 23) · defending -0.75/bd (+1.27 vs par · 33)
By vulnerability: vulnerable +0.46/bd (+1.14 vs par · 28) · not vulnerable +0.09/bd (+0.18 vs par · 28)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | S.Sun | K.Karaivanov – R.Trendafilov | Open | 7 | +7.9 | +1.13 | +1.00 |
| Round 2 | S.Sun | T.Teramoto – H.Takano | Open | 7 | +9.6 | +1.37 | +4.43 |
| Round 3 | S.Sun | M.Krupowicz – P.Janiszewski | Open | 7 | +11.9 | +1.70 | +2.00 |
| Round 4 | S.Sun | J.Hurd – J.Wooldridge | Closed | 7 | +7.6 | +1.09 | -0.29 |
| Round 5 | S.Sun | G.Duboin – Z.Mahmood | Closed | 7 | -0.6 | -0.09 | +1.14 |
| Round 6 | S.Sun | P.Rajadhyaksha – C.Cheek | Closed | 7 | +0.4 | +0.06 | -0.57 |
| Round 7 | S.Sun | Q.Ye – P.Wu | Closed | 7 | -9.9 | -1.41 | -0.71 |
| Round 8 | S.Sun | B.Gierulski – J.Skrzypczak | Open | 7 | -11.4 | -1.63 | -1.71 |
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 |
|---|---|---|---|---|---|---|---|
| +9.2 | Round 2 | JAPAN | 9 | 4♠ | ♣J | = | +10 |
| +8.4 | Round 3 | ZAWADA | 20 | 3NT | ♥6 | = | +10 |
| +8.1 | Round 4 | LEBRON | 23 | 3NT | ♥J | = | +10 |
| +6.0 | Round 3 | ZAWADA | 18 | 4♥ | ♥3 | -2 | +3 |
| +5.6 | Round 6 | MARK GORDON | 14 | 4♠ | ♥2 | = | +7 |
| +4.8 | Round 1 | PENFOLD | 4 | 1NT | ♣A | = | +12 |
| +4.4 | Round 2 | JAPAN | 13 | 4♠ | ♠2 | +3 | +17 |
| +4.0 | Round 4 | LEBRON | 28 | 4♠x | ♦Q | -1 | +9 |
| +3.9 | Round 3 | ZAWADA | 17 | 4♠ | ♥5 | -1 | +8 |
| +3.6 | Round 1 | PENFOLD | 7 | 2♠ | ♣J | +2 | +1 |
| +3.6 | Round 2 | JAPAN | 11 | 2NT | ♦4 | -1 | +4 |
| +3.6 | Round 7 | YUETAO OF GUANGZHOU | 18 | 5♦ | ♥8 | +2 | +13 |
| +3.2 | Round 5 | LAVAZZA | 3 | 3NT | ♦J | +1 | +1 |
| +3.2 | Round 6 | MARK GORDON | 9 | 5♣ | ♥6 | -2 | +0 |
| +2.6 | Round 1 | PENFOLD | 5 | 2♠ | ♣8 | -2 | +2 |
| +2.6 | Round 7 | YUETAO OF GUANGZHOU | 21 | 6♠ | ♥2 | = | +0 |
| +2.1 | Round 5 | LAVAZZA | 4 | 4♠ | ♠9 | -1 | +6 |
| +2.1 | Round 7 | YUETAO OF GUANGZHOU | 19 | 2♥ | ♦J | +1 | +1 |
| +1.8 | Round 6 | MARK GORDON | 13 | 2♠ | ♥10 | = | +0 |
| +1.4 | Round 8 | VITAS | 23 | 2♣ | ♠K | = | -1 |
| +1.1 | Round 4 | LEBRON | 24 | 1NT | ♦6 | = | +0 |
| +1.0 | Round 3 | ZAWADA | 21 | 1NT | ♥5 | +2 | +10 |
| +0.8 | Round 1 | PENFOLD | 2 | 2♥ | ♥4 | +3 | +10 |
| +0.8 | Round 8 | VITAS | 22 | 3♦ | ♠J | -1 | -2 |
| +0.4 | Round 5 | LAVAZZA | 2 | 3♥ | ♣2 | -1 | -1 |
| +0.3 | Round 3 | ZAWADA | 15 | 4♥ | ♥3 | +2 | -11 |
| +0.1 | Round 1 | PENFOLD | 3 | 2♠ | ♣K | -1 | -3 |
| +0.1 | Round 5 | LAVAZZA | 1 | 4♥ | ♣A | = | +1 |
| +0.0 | Round 2 | JAPAN | 8 | 1NT | ♠2 | = | +1 |
| -0.0 | Round 4 | LEBRON | 27 | 4♠ | ♥4 | +1 | -11 |
| -0.1 | Round 4 | LEBRON | 25 | 3NT | ♦4 | = | +0 |
| -0.2 | Round 6 | MARK GORDON | 12 | 4♥ | ♥5 | +1 | +0 |
| -0.3 | Round 2 | JAPAN | 12 | 3♦ | ♣2 | -1 | +2 |
| -0.7 | Round 8 | VITAS | 25 | 3♥ | ♥4 | = | +0 |
| -0.9 | Round 8 | VITAS | 28 | 4♠ | ♦J | = | -3 |
| -1.0 | Round 5 | LAVAZZA | 6 | 6NT | ♣2 | = | +11 |
| -1.3 | Round 4 | LEBRON | 26 | 2♥ | ♣Q | = | +0 |
| -1.5 | Round 6 | MARK GORDON | 10 | 1NT | ♠6 | +1 | +0 |
| -1.7 | Round 1 | PENFOLD | 6 | 1NT | ♥4 | +1 | -10 |
| -2.2 | Round 2 | JAPAN | 14 | 2♠ | ♣2 | = | +0 |
| -2.2 | Round 8 | VITAS | 24 | 3NT | ♥4 | -1 | -5 |
| -2.3 | Round 1 | PENFOLD | 1 | 2NT | ♦10 | +3 | -5 |
| -2.3 | Round 3 | ZAWADA | 19 | 4♠ | ♥5 | = | -6 |
| -2.3 | Round 5 | LAVAZZA | 5 | 4♠ | ♣2 | -1 | -10 |
| -2.4 | Round 7 | YUETAO OF GUANGZHOU | 17 | 4♥ | ♠3 | -1 | -8 |
| -2.5 | Round 8 | VITAS | 27 | 4♠ | ♥2 | = | +0 |
| -2.9 | Round 7 | YUETAO OF GUANGZHOU | 16 | 5♠ | ♣10 | -1 | -5 |
| -3.1 | Round 5 | LAVAZZA | 7 | 6♥ | ♠A | = | +0 |
| -3.6 | Round 7 | YUETAO OF GUANGZHOU | 20 | 2♥ | ♣9 | = | -6 |
| -3.9 | Round 6 | MARK GORDON | 8 | 2♠ | ♦A | = | -5 |
| -4.2 | Round 4 | LEBRON | 22 | 2♥ | ♠3 | +2 | -10 |
| -4.6 | Round 6 | MARK GORDON | 11 | 3♥ | ♣6 | = | -6 |
| -5.1 | Round 2 | JAPAN | 10 | 4♥ | ♠K | = | -3 |
| -5.4 | Round 3 | ZAWADA | 16 | 4♥ | ♥3 | = | +0 |
| -7.3 | Round 8 | VITAS | 26 | 3NT | ♠3 | +2 | -1 |
| -9.3 | Round 7 | YUETAO OF GUANGZHOU | 15 | 4♠ | ♣5 | = | +0 |