WU Yuwei · ZUOMEICHENG
372rank
+0.9Butler · 100 bds
+0.01per board
±4.9swing
+1.15vs par /bd · #29/672
+0.25adjusted /bd
by round
vs par split: bidding -0.03 · play +1.04
Strength of schedule: opponents averaged +0.24/bd (a tough draw) → opponent-adjusted +0.25/bd
Card play — on target: opening leads 95.0% #29 of 671 · declarer play 88.2% #98 of 671 · defence 91.7% #83 of 672
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 95.0% (20) |
| Declarer play | · | 88.2% (17) |
| Defence | · | 91.7% (36) |
Opening leads by suit led: ♠ 100.0% (5) · ♥ 100.0% (5) · ♦ 100.0% (4) · ♣ 83.3% (6)
vs par by strain: a suit +1.01 (67)
vs par by level: part-score -0.12 (24) · game -0.21 (34) · slam +8.67 (9)
By role: declaring +0.36/bd (-0.69 vs par · 45) · defending -0.28/bd (+2.65 vs par · 55)
By vulnerability: vulnerable -0.01/bd (+0.62 vs par · 53) · not vulnerable +0.03/bd (+1.75 vs par · 47)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | J.Chen | J.Park – S.Yang | Open | 10 | +2.4 | +0.24 | +1.80 |
| Round 3 | J.Chen | J.Zaremba – V.Markowicz | Closed | 10 | -4.1 | -0.41 | -2.20 |
| Round 5 | J.Chen | Z.Liu – W.Zhou | Closed | 10 | +23.5 | +2.35 | +3.30 |
| Round 7 | J.Chen | A.Madala – A.Sementa | Open | 10 | -13.0 | -1.30 | -0.60 |
| Round 8 | J.Chen | K.Fergani – N.L'Ecuyer | Closed | 10 | -4.8 | -0.48 | +0.00 |
| Round 10 | J.Chen | B.Polii – J.Tueje | Open | 10 | -26.6 | -2.66 | -0.80 |
| Round 11 | J.Chen | Z.Lu – Y.Wu | Open | 10 | +34.2 | +3.42 | +3.90 |
| Round 12 | Z.Zhang | C.Pan – H.Zhang | Open | 10 | -5.3 | -0.53 | +0.60 |
| Round 13 | Z.Zhang | J.Shah – P.Sridharan | Closed | 10 | -16.4 | -1.64 | +2.60 |
| Round 15 | Y.Zhou | J.Gaviard – J.Van Cleeff | Closed | 10 | +11.0 | +1.10 | +2.90 |
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 |
|---|---|---|---|---|---|---|---|
| +12.0 | Round 11 | ZHEJIANG ZHENGYUAN | 12 | 3Nx | ♥3 | +1 | +8 |
| +11.2 | Round 11 | ZHEJIANG ZHENGYUAN | 20 | 6♣ | ♥J | = | -2 |
| +10.6 | Round 3 | MARKOWICZ | 29 | 6♦ | ♠2 | -1 | +13 |
| +10.4 | Round 13 | TEXAN ACES | 5 | 6♦ | ♣6 | -1 | +16 |
| +7.4 | Round 10 | GABSI | 9 | 4♥ | ♥2 | -1 | +9 |
| +7.3 | Round 1 | KOREA-CHINA | 10 | 3Nx | ♠Q | +1 | +10 |
| +7.0 | Round 12 | LANP PECH | 21 | 4♥ | ♣2 | +1 | +8 |
| +6.8 | Round 11 | ZHEJIANG ZHENGYUAN | 16 | 6♠ | ♦9 | -1 | +13 |
| +6.5 | Round 1 | KOREA-CHINA | 7 | 4♥ | ♠J | -1 | +13 |
| +6.5 | Round 3 | MARKOWICZ | 25 | 2N | ♠8 | -2 | +7 |
| +6.2 | Round 5 | SHANGHAI JIANQIAO | 12 | 2♠ | ♠3 | -3 | +7 |
| +6.2 | Round 10 | GABSI | 2 | 6♦ | ♥Q | -1 | +10 |
| +5.9 | Round 15 | VENTIN | 21 | 4♠ | ♣7 | = | +7 |
| +5.8 | Round 5 | SHANGHAI JIANQIAO | 19 | 3♥ | ♠K | -2 | +7 |
| +5.2 | Round 5 | SHANGHAI JIANQIAO | 13 | 3N | ♠2 | = | +5 |
| +4.8 | Round 15 | VENTIN | 30 | 4♥ | ♠10 | = | -2 |
| +4.7 | Round 1 | KOREA-CHINA | 8 | 3N | ♣2 | -2 | +5 |
| +4.3 | Round 15 | VENTIN | 27 | 3N | ♣4 | -2 | +6 |
| +4.0 | Round 11 | ZHEJIANG ZHENGYUAN | 11 | 2N | ♠J | = | +7 |
| +4.0 | Round 15 | VENTIN | 24 | 2♥ | ♣A | -2 | +0 |
| +3.4 | Round 8 | L'ECUYER | 12 | 3N | ♣10 | -2 | +6 |
| +3.4 | Round 15 | VENTIN | 26 | 2♣ | ♣2 | -2 | +2 |
| +3.3 | Round 12 | LANP PECH | 23 | 6♦ | ♠6 | -2 | +8 |
| +3.2 | Round 12 | LANP PECH | 26 | 2♠ | ♣3 | +1 | +0 |
| +2.9 | Round 5 | SHANGHAI JIANQIAO | 11 | 2♠ | ♦A | -1 | -2 |
| +2.9 | Round 5 | SHANGHAI JIANQIAO | 17 | 2♠ | ♦2 | = | +6 |
| +2.9 | Round 11 | ZHEJIANG ZHENGYUAN | 15 | 4♠ | ♣A | -1 | -2 |
| +2.6 | Round 8 | L'ECUYER | 20 | 4♠ | ♥6 | = | +0 |
| +2.3 | Round 5 | SHANGHAI JIANQIAO | 18 | 4♠ | ♣3 | -1 | +5 |
| +2.2 | Round 11 | ZHEJIANG ZHENGYUAN | 13 | 2♥ | ♠5 | +1 | +2 |
| +1.9 | Round 7 | LAVAZZA | 7 | 4♠ | ♥3 | -1 | +6 |
| +1.6 | Round 11 | ZHEJIANG ZHENGYUAN | 18 | 4♣ | ♠K | -1 | +4 |
| +1.5 | Round 12 | LANP PECH | 29 | 3♠ | ♦K | -1 | +0 |
| +1.4 | Round 5 | SHANGHAI JIANQIAO | 15 | 3N | ♠10 | +3 | +11 |
| +1.4 | Round 10 | GABSI | 6 | 4♠ | ♣A | +1 | +1 |
| +1.3 | Round 13 | TEXAN ACES | 7 | 4♥ | ♣A | +1 | +0 |
| +1.2 | Round 13 | TEXAN ACES | 1 | 4♠ | ♣3 | = | +0 |
| +1.1 | Round 1 | KOREA-CHINA | 6 | 3♦ | ♣9 | = | +1 |
| +1.1 | Round 8 | L'ECUYER | 16 | 2♠ | ♥K | +1 | +0 |
| +1.0 | Round 7 | LAVAZZA | 1 | 4♥ | ♠K | +1 | +0 |
| +1.0 | Round 10 | GABSI | 4 | 2♠ | ♥2 | -1 | +5 |
| +1.0 | Round 15 | VENTIN | 29 | 4♠ | ♣A | = | +0 |
| +0.8 | Round 5 | SHANGHAI JIANQIAO | 16 | 1N | ♦K | -2 | +1 |
| +0.8 | Round 7 | LAVAZZA | 9 | 4♥ | ♦A | +2 | -11 |
| +0.8 | Round 10 | GABSI | 3 | 1N | ♣Q | -2 | +1 |
| +0.7 | Round 3 | MARKOWICZ | 22 | 3N | ♦8 | +1 | -5 |
| +0.6 | Round 5 | SHANGHAI JIANQIAO | 20 | 4♠ | ♣K | = | -1 |
| +0.5 | Round 15 | VENTIN | 28 | 2♣ | ♠7 | -2 | +2 |
| +0.4 | Round 3 | MARKOWICZ | 24 | 2♥ | ♠6 | +1 | +0 |
| +0.3 | Round 7 | LAVAZZA | 10 | 2♥ | ♦K | = | +1 |
| +0.2 | Round 1 | KOREA-CHINA | 4 | 3♠ | ♦Q | -1 | +1 |
| +0.2 | Round 15 | VENTIN | 22 | 4♠ | ♥2 | +1 | +5 |
| +0.1 | Round 7 | LAVAZZA | 6 | 4♥ | ♣10 | = | +1 |
| +0.0 | Round 7 | LAVAZZA | 3 | 1N | ♣K | -2 | +9 |
| +0.0 | Round 13 | TEXAN ACES | 9 | 4♠ | ♣3 | +1 | +0 |
| -0.1 | Round 13 | TEXAN ACES | 10 | 2N | ♥K | = | +0 |
| -0.2 | Round 11 | ZHEJIANG ZHENGYUAN | 19 | 4♠ | ♥8 | = | +0 |
| -0.3 | Round 3 | MARKOWICZ | 21 | 1N | ♣10 | +1 | -1 |
| -0.3 | Round 12 | LANP PECH | 28 | 5♦x | ♣9 | -2 | +4 |
| -0.4 | Round 8 | L'ECUYER | 14 | 1N | ♠2 | = | +1 |
| -0.6 | Round 8 | L'ECUYER | 17 | 3N | ♥9 | = | +6 |
| -0.8 | Round 7 | LAVAZZA | 4 | 4♥ | ♦4 | +1 | +0 |
| -0.8 | Round 13 | TEXAN ACES | 3 | 3N | ♥7 | +2 | +0 |
| -0.9 | Round 8 | L'ECUYER | 13 | 4♠ | ♥A | +2 | -7 |
| -1.0 | Round 8 | L'ECUYER | 18 | 1N | ♦Q | = | +1 |
| -1.2 | Round 12 | LANP PECH | 25 | 3N | ♥3 | = | +5 |
| -1.3 | Round 12 | LANP PECH | 30 | 4♥ | ♦A | -1 | -5 |
| -1.4 | Round 1 | KOREA-CHINA | 9 | 4N | ♥10 | +1 | +0 |
| -1.4 | Round 8 | L'ECUYER | 19 | 2♠ | ♥K | -1 | +2 |
| -1.8 | Round 7 | LAVAZZA | 2 | 1N | ♦8 | +1 | +0 |
| -2.3 | Round 1 | KOREA-CHINA | 3 | 4♠x | ♣A | -3 | +4 |
| -2.3 | Round 3 | MARKOWICZ | 23 | 4♠ | ♥10 | +1 | +0 |
| -2.7 | Round 3 | MARKOWICZ | 27 | 3N | ♠Q | -1 | -5 |
| -2.8 | Round 11 | ZHEJIANG ZHENGYUAN | 17 | 4♦ | ♣Q | -2 | -5 |
| -2.9 | Round 10 | GABSI | 1 | 1N | ♣10 | = | +0 |
| -3.1 | Round 1 | KOREA-CHINA | 5 | 3♠ | ♥A | = | +0 |
| -3.1 | Round 12 | LANP PECH | 27 | 4♥ | ♦Q | +1 | +5 |
| -3.3 | Round 13 | TEXAN ACES | 2 | 4♥ | ♣5 | = | +1 |
| -3.5 | Round 11 | ZHEJIANG ZHENGYUAN | 14 | 3N | ♠4 | +2 | +14 |
| -3.6 | Round 15 | VENTIN | 23 | 1N | ♥2 | = | +0 |
| -3.7 | Round 8 | L'ECUYER | 15 | 4♥ | ♦Q | -1 | -6 |
| -3.9 | Round 8 | L'ECUYER | 11 | 3N | ♦J | = | -3 |
| -4.1 | Round 1 | KOREA-CHINA | 2 | 4♦ | ♣A | = | -5 |
| -4.2 | Round 3 | MARKOWICZ | 26 | 4♠ | ♦Q | = | -8 |
| -4.6 | Round 5 | SHANGHAI JIANQIAO | 14 | 3♣ | ♦K | = | -6 |
| -5.8 | Round 7 | LAVAZZA | 5 | 4♠ | ♦Q | +1 | -6 |
| -6.3 | Round 3 | MARKOWICZ | 28 | 3N | ♥8 | -1 | -11 |
| -6.5 | Round 1 | KOREA-CHINA | 1 | 2N | ♣K | -2 | -11 |
| -6.5 | Round 3 | MARKOWICZ | 30 | 3N | ♦5 | -1 | -12 |
| -6.5 | Round 12 | LANP PECH | 24 | 3N | ♥6 | = | -11 |
| -6.5 | Round 13 | TEXAN ACES | 6 | 3N | ♥6 | +2 | +11 |
| -6.8 | Round 10 | GABSI | 7 | 2♦x | ♠K | = | -12 |
| -7.9 | Round 12 | LANP PECH | 22 | 3N | ♥A | +3 | -8 |
| -8.7 | Round 7 | LAVAZZA | 8 | 5♦x | ♣2 | = | -6 |
| -9.0 | Round 13 | TEXAN ACES | 8 | 6♠ | ♦J | +1 | +11 |
| -9.5 | Round 15 | VENTIN | 25 | 6♠ | ♦3 | = | +9 |
| -9.6 | Round 13 | TEXAN ACES | 4 | 4♠ | ♦7 | -2 | -13 |
| -10.2 | Round 10 | GABSI | 5 | 6♠ | ♥7 | = | +0 |
| -10.9 | Round 10 | GABSI | 8 | 4♠x | ♥2 | -3 | -9 |
| -12.6 | Round 10 | GABSI | 10 | 3♣x | ♠A | = | -13 |