ZEN Derek · HK ZEN
vs par split: bidding +0.34 · play -0.97
Strength of schedule: opponents averaged +0.30/bd (a tough draw) → opponent-adjusted +0.75/bd
Card play — on target: opening leads 87.5% #115 of 579 · declarer play 53.8% #520 of 579 · defence 93.3% #128 of 579
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (2) | 83.3% (6) |
| Declarer play | 40.0% (5) | 62.5% (8) |
| Defence | 100.0% (4) | 90.9% (11) |
Opening leads by suit led: ♠ 100.0% (1) · ♥ 100.0% (4) · ♦ 66.7% (3)
vs par by strain: NT -4.25 (12) · a suit +1.26 (23)
vs par by level: part-score +0.77 (17) · game -0.50 (16) · slam -13.50 (2)
By role: declaring -0.97/bd (-5.20 vs par · 20) · defending +2.35/bd (+5.47 vs par · 15)
By vulnerability: vulnerable +0.25/bd (-2.06 vs par · 17) · not vulnerable +0.64/bd (+0.72 vs par · 18)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 2 | S.Wan | J.Shen – X.Shi | Open | 7 | +6.1 | +0.87 | +3.00 |
| Round 3 | S.Wan | Y.Dong – Y.Yang | Open | 7 | +25.6 | +3.66 | +0.71 |
| Round 5 | S.Wan | J.Ma – M.Shi | Closed | 7 | -7.8 | -1.11 | -0.71 |
| Round 6 | S.Wan | A.Soebroto – K.Kamto | Closed | 7 | +4.3 | +0.61 | -1.14 |
| Round 8 | S.Wan | L.Hu – J.Liu | Closed | 7 | -12.4 | -1.77 | -5.00 |
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 |
|---|---|---|---|---|---|---|---|
| +9.6 | Round 6 | INDONESIA | 10 | 3♦x | ♣A | -3 | +12 |
| +7.8 | Round 3 | KALAJUN-XINJIANG | 21 | 5♠ | ♦K | = | +17 |
| +6.9 | Round 2 | SHENZHEN NANGANG POWER | 9 | 3NT | ♦Q | -1 | +10 |
| +6.1 | Round 3 | KALAJUN-XINJIANG | 16 | 5♦ | ♥6 | +1 | +11 |
| +4.1 | Round 3 | KALAJUN-XINJIANG | 15 | 2♥ | ♦Q | +1 | +6 |
| +4.1 | Round 8 | JIANGSU BRIDGE ASSOCIATION | 27 | 4♠ | ♥A | -3 | +2 |
| +4.0 | Round 6 | INDONESIA | 14 | 4♠x | ♦A | -1 | +5 |
| +3.5 | Round 2 | SHENZHEN NANGANG POWER | 10 | 4♠ | ♣5 | = | +0 |
| +3.0 | Round 3 | KALAJUN-XINJIANG | 20 | 3NT | ♠9 | +1 | -12 |
| +2.9 | Round 3 | KALAJUN-XINJIANG | 19 | 4NT | ♦8 | +1 | -17 |
| +2.8 | Round 6 | INDONESIA | 11 | 4♣ | ♦7 | -1 | +5 |
| +2.7 | Round 6 | INDONESIA | 13 | 1NT | ♥J | -2 | +2 |
| +2.6 | Round 8 | JIANGSU BRIDGE ASSOCIATION | 24 | 5♥ | ♠K | = | +0 |
| +2.2 | Round 5 | PAN-CHINA | 4 | 2♠ | ♣3 | +3 | +9 |
| +2.0 | Round 8 | JIANGSU BRIDGE ASSOCIATION | 26 | 3NT | ♠3 | = | +0 |
| +1.8 | Round 2 | SHENZHEN NANGANG POWER | 12 | 2♦ | ♥7 | +2 | +0 |
| +1.2 | Round 3 | KALAJUN-XINJIANG | 18 | 2♣ | ♥3 | -1 | +2 |
| +0.6 | Round 5 | PAN-CHINA | 2 | 2♥ | ♠10 | +1 | +0 |
| +0.5 | Round 3 | KALAJUN-XINJIANG | 17 | 1NT | ♠K | = | -2 |
| +0.2 | Round 5 | PAN-CHINA | 3 | 2NT | ♠5 | -1 | +5 |
| -0.3 | Round 2 | SHENZHEN NANGANG POWER | 11 | 4♠ | ♠4 | +1 | +10 |
| -0.4 | Round 5 | PAN-CHINA | 5 | 2♥ | ♣A | +1 | +0 |
| -0.4 | Round 8 | JIANGSU BRIDGE ASSOCIATION | 23 | 1NT | ♦6 | +1 | +0 |
| -0.7 | Round 2 | SHENZHEN NANGANG POWER | 14 | 2♥ | ♣K | -1 | +2 |
| -1.0 | Round 5 | PAN-CHINA | 7 | 4♠ | ♥6 | = | +0 |
| -2.0 | Round 2 | SHENZHEN NANGANG POWER | 13 | 4♥ | ♦5 | +2 | -1 |
| -3.0 | Round 6 | INDONESIA | 8 | 2NT | ♦J | +1 | -7 |
| -3.1 | Round 2 | SHENZHEN NANGANG POWER | 8 | 3♣ | ♥7 | = | +0 |
| -3.5 | Round 5 | PAN-CHINA | 1 | 2NT | ♥6 | +2 | -6 |
| -3.5 | Round 6 | INDONESIA | 12 | 3NT | ♣2 | -1 | -10 |
| -3.5 | Round 8 | JIANGSU BRIDGE ASSOCIATION | 28 | 4♥ | ♣3 | -2 | -11 |
| -5.9 | Round 5 | PAN-CHINA | 6 | 6♣ | ♠10 | +1 | -13 |
| -7.6 | Round 8 | JIANGSU BRIDGE ASSOCIATION | 22 | 6NT | ♣10 | -3 | -14 |
| -8.3 | Round 6 | INDONESIA | 9 | 4♦ | ♠Q | +1 | -15 |
| -9.6 | Round 8 | JIANGSU BRIDGE ASSOCIATION | 25 | 5♥ | ♠A | -1 | -12 |