KANG Meng · CHINA OPN(B)
vs par split: bidding -1.12 · play +0.55
Strength of schedule: opponents averaged -0.59/bd (an easy draw) → opponent-adjusted -0.19/bd
Card play — on target: opening leads 75.0% · declarer play 53.8% · defence 95.0%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 66.7% (3) | 80.0% (5) |
| Declarer play | 25.0% (4) | 66.7% (9) |
| Defence | 100.0% (6) | 92.9% (14) |
Opening leads by suit led: ♠ 50.0% (4) · ♥ 100.0% (2) · ♦ 100.0% (2)
vs par by strain: NT +0.36 (14) · a suit -1.04 (28)
vs par by level: part-score +1.31 (16) · game -1.80 (25) · slam +0.00 (1)
By role: declaring +0.38/bd (-3.64 vs par · 22) · defending +0.42/bd (+2.80 vs par · 20)
By vulnerability: vulnerable -0.10/bd (-1.48 vs par · 21) · not vulnerable +0.91/bd (+0.33 vs par · 21)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round of 32 | S.Sun | G.Hallberg – P.Bertheau | Closed | 14 | +4.5 | +0.32 | -0.64 |
| Round of 32 | S.Sun | W.Whittaker – D.Patterson | Closed | 14 | -19.1 | -1.36 | -0.86 |
| Round of 32 | S.Sun | W.Whittaker – D.Patterson | Closed | 14 | +31.4 | +2.24 | -0.21 |
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 |
|---|---|---|---|---|---|---|---|
| +13.1 | Round of 32 | BLACK | 35 | 3NTx | ♦7 | +1 | +14 |
| +9.9 | Round of 32 | BLACK | 37 | 3NT | ♣5 | +1 | +0 |
| +8.8 | Round of 32 | BLACK | 8 | 6♦ | ♣K | = | +0 |
| +6.1 | Round of 32 | BLACK | 16 | 2♥ | ♣J | +2 | +6 |
| +5.7 | Round of 32 | BLACK | 3 | 3NT | ♠9 | -1 | +10 |
| +4.6 | Round of 32 | BLACK | 33 | 3♠ | ♦5 | -1 | +12 |
| +4.4 | Round of 32 | BLACK | 40 | 3NT | ♥10 | +1 | +0 |
| +4.2 | Round of 32 | BLACK | 17 | 3NT | ♠5 | -1 | +10 |
| +3.0 | Round of 32 | BLACK | 24 | 4♣ | ♥K | -2 | +8 |
| +2.4 | Round of 32 | BLACK | 18 | 4♠ | ♥A | = | -1 |
| +2.2 | Round of 32 | BLACK | 2 | 2♠ | ♠10 | +2 | +2 |
| +2.1 | Round of 32 | BLACK | 38 | 3♥ | ♣Q | -1 | +5 |
| +1.9 | Round of 32 | BLACK | 36 | 3NT | ♠Q | +1 | +0 |
| +1.7 | Round of 32 | BLACK | 11 | 3NT | ♥J | -1 | +5 |
| +1.4 | Round of 32 | BLACK | 29 | 3NT | ♠10 | +2 | -11 |
| +1.3 | Round of 32 | BLACK | 15 | 2♥ | ♦5 | +2 | +10 |
| +1.1 | Round of 32 | BLACK | 14 | 2♣ | ♦K | -2 | +7 |
| +0.6 | Round of 32 | BLACK | 10 | 4♠ | ♦A | -1 | +6 |
| +0.3 | Round of 32 | BLACK | 12 | 3♦ | ♠Q | -1 | -1 |
| +0.0 | Round of 32 | BLACK | 41 | 5♦ | ♠2 | = | +2 |
| -0.1 | Round of 32 | BLACK | 32 | 3NT | ♣9 | +1 | -13 |
| -0.2 | Round of 32 | BLACK | 4 | 4♠ | ♥K | +1 | -13 |
| -0.3 | Round of 32 | BLACK | 1 | 4♠ | ♦A | +1 | +0 |
| -0.3 | Round of 32 | BLACK | 27 | 4♥ | ♦6 | = | +0 |
| -0.5 | Round of 32 | BLACK | 31 | 1NT | ♣2 | +1 | +0 |
| -0.6 | Round of 32 | BLACK | 42 | 3♠ | ♣K | +1 | -6 |
| -0.8 | Round of 32 | BLACK | 19 | 2♥ | ♠5 | +1 | -6 |
| -1.1 | Round of 32 | BLACK | 6 | 4♠ | ♥5 | +1 | -1 |
| -1.2 | Round of 32 | BLACK | 39 | 2NT | ♠Q | -1 | -4 |
| -1.4 | Round of 32 | BLACK | 13 | 3♣ | ♥A | -1 | -5 |
| -1.7 | Round of 32 | BLACK | 34 | 1♣ | ♠K | = | +1 |
| -1.9 | Round of 32 | BLACK | 30 | 4♠ | ♥A | = | -3 |
| -2.0 | Round of 32 | BLACK | 9 | 2♥ | ♣J | -2 | -2 |
| -2.5 | Round of 32 | BLACK | 5 | 4♠ | ♦3 | -1 | -5 |
| -2.5 | Round of 32 | BLACK | 20 | 3NT | ♠5 | +2 | +0 |
| -2.5 | Round of 32 | BLACK | 23 | 4♠ | ♦9 | = | +0 |
| -3.9 | Round of 32 | BLACK | 28 | 3♥ | ♥4 | +1 | -6 |
| -4.1 | Round of 32 | BLACK | 22 | 3NT | ♠5 | -1 | -6 |
| -6.5 | Round of 32 | BLACK | 26 | 3NT | ♦6 | = | +0 |
| -7.6 | Round of 32 | BLACK | 21 | 4♥ | ♦Q | -1 | -10 |
| -7.9 | Round of 32 | BLACK | 25 | 5♦ | ♣8 | -1 | -17 |
| -8.4 | Round of 32 | BLACK | 7 | 4♠ | ♥8 | -1 | -12 |