CHEN Xingguo · COFCO YALONG BAY
vs par split: bidding -0.50 · play -0.29
Strength of schedule: opponents averaged -0.05/bd (an easy draw) → opponent-adjusted -1.06/bd
Card play — on target: opening leads 90.9% #79 of 579 · declarer play 50.0% #531 of 579 · defence 83.3% #383 of 579
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (1) | 90.0% (10) |
| Declarer play | 50.0% (2) | 50.0% (4) |
| Defence | 71.4% (7) | 88.2% (17) |
Opening leads by suit led: ♠ 100.0% (2) · ♥ 75.0% (4) · ♦ 100.0% (3) · ♣ 100.0% (2)
vs par by strain: NT -2.46 (13) · a suit -0.03 (29)
vs par by level: part-score +0.07 (15) · game +0.33 (24) · slam -14.00 (3)
By role: declaring -0.84/bd (-3.94 vs par · 18) · defending -1.12/bd (+1.58 vs par · 24)
By vulnerability: vulnerable -0.91/bd (-2.27 vs par · 22) · not vulnerable -1.10/bd (+0.85 vs par · 20)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | J.Lei | J.Bian – Y.Lian | Open | 7 | -4.5 | -0.64 | -2.29 |
| Round 2 | L.Cai | B.Gierulski – J.Skrzypczak | Open | 7 | -1.3 | -0.19 | +1.86 |
| Round 4 | J.Lei | R.Van Prooijen – J.Verhees | Closed | 7 | -6.6 | -0.94 | -6.14 |
| Round 5 | J.Lei | J.Hurd – J.Wooldridge | Closed | 7 | -4.8 | -0.69 | -0.71 |
| Round 7 | J.Lei | B.Marina – I.Coldea | Open | 7 | -9.4 | -1.34 | +0.86 |
| Round 8 | L.Cai | D.Cao – J.Gao | Open | 7 | -15.5 | -2.21 | +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 |
|---|---|---|---|---|---|---|---|
| +8.2 | Round 2 | VITAS | 13 | 4♠ | ♥5 | -2 | +10 |
| +7.4 | Round 5 | LEBRON | 4 | 3NT | ♥2 | -1 | +12 |
| +6.7 | Round 7 | ROMANIA | 15 | 4♠ | ♣K | -1 | +14 |
| +6.6 | Round 8 | SUZHOUTAIHU | 27 | 5♣x | ♥10 | -2 | +9 |
| +3.9 | Round 1 | CHINA HYX | 7 | 3NT | ♥J | +2 | +1 |
| +3.2 | Round 2 | VITAS | 14 | 2♣ | ♦K | -2 | +5 |
| +2.1 | Round 4 | LEVINE | 26 | 4♥ | ♠7 | +3 | -12 |
| +2.0 | Round 7 | ROMANIA | 21 | 4♠ | ♣3 | -1 | +5 |
| +1.9 | Round 5 | LEBRON | 3 | 3NT | ♠J | -2 | +6 |
| +1.8 | Round 2 | VITAS | 12 | 2♦ | ♦6 | +2 | +0 |
| +1.8 | Round 5 | LEBRON | 1 | 3NT | ♥7 | = | +0 |
| +1.6 | Round 1 | CHINA HYX | 3 | 2♠ | ♣9 | -1 | +1 |
| +1.2 | Round 7 | ROMANIA | 19 | 3♦ | ♠A | +1 | +0 |
| +0.8 | Round 4 | LEVINE | 28 | 3NT | ♣4 | -1 | +6 |
| +0.6 | Round 5 | LEBRON | 2 | 3♥ | ♠9 | = | +0 |
| +0.3 | Round 1 | CHINA HYX | 1 | 2♦ | ♠A | -2 | +5 |
| +0.2 | Round 1 | CHINA HYX | 5 | 3♠ | ♥3 | = | +0 |
| -0.0 | Round 4 | LEVINE | 22 | 2♥ | ♦A | +1 | +0 |
| -0.0 | Round 4 | LEVINE | 25 | 3NT | ♣4 | +2 | -12 |
| +0.0 | Round 8 | SUZHOUTAIHU | 23 | 2♠ | ♦10 | = | +0 |
| -0.3 | Round 2 | VITAS | 11 | 4♠ | ♥J | +1 | +10 |
| -0.6 | Round 7 | ROMANIA | 17 | 2♠ | ♦8 | +1 | +0 |
| -1.0 | Round 5 | LEBRON | 7 | 4♠ | ♠6 | = | +0 |
| -1.9 | Round 1 | CHINA HYX | 2 | 3NT | ♥5 | -2 | -6 |
| -2.0 | Round 4 | LEVINE | 23 | 6♣ | ♦9 | -1 | -17 |
| -2.0 | Round 8 | SUZHOUTAIHU | 25 | 4♠x | ♦A | -3 | +3 |
| -2.0 | Round 8 | SUZHOUTAIHU | 26 | 3NT | ♥Q | = | +0 |
| -2.4 | Round 1 | CHINA HYX | 4 | 2♠ | ♥K | = | -6 |
| -2.5 | Round 4 | LEVINE | 24 | 3NT | ♠5 | +2 | +0 |
| -2.8 | Round 7 | ROMANIA | 18 | 1NT | ♠7 | +1 | +1 |
| -3.1 | Round 2 | VITAS | 8 | 3♣ | ♦7 | = | +0 |
| -3.1 | Round 2 | VITAS | 9 | 5♣ | ♦K | = | +0 |
| -3.5 | Round 7 | ROMANIA | 16 | 2♠x | ♣A | -3 | +3 |
| -3.5 | Round 8 | SUZHOUTAIHU | 24 | 4♥ | ♠Q | +2 | -1 |
| -5.0 | Round 4 | LEVINE | 27 | 2♦ | ♥J | -1 | -8 |
| -5.9 | Round 5 | LEBRON | 6 | 6♣ | ♣J | +1 | -13 |
| -6.2 | Round 1 | CHINA HYX | 6 | 3NT | ♦Q | = | -11 |
| -6.6 | Round 8 | SUZHOUTAIHU | 22 | 5♦ | ♣4 | = | +1 |
| -8.0 | Round 2 | VITAS | 10 | 6NT | ♠10 | -1 | -12 |
| -8.0 | Round 8 | SUZHOUTAIHU | 28 | 4♥ | ♠4 | = | +0 |
| -9.6 | Round 5 | LEBRON | 5 | 4♥ | ♣A | = | -10 |
| -12.4 | Round 7 | ROMANIA | 20 | 3NT | ♣4 | -1 | -17 |