LIU Yizhou · SX XMXW
vs par split: bidding -1.82 · play +0.08
Strength of schedule: opponents averaged +0.15/bd (a tough draw) → opponent-adjusted -0.54/bd
Card play — on target: opening leads 83.3% #17 of 39 · declarer play 62.5% #27 of 39 · defence 86.4% #20 of 39
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (3) | 77.8% (9) |
| Declarer play | 42.9% (7) | 77.8% (9) |
| Defence | 83.3% (6) | 87.5% (16) |
Opening leads by suit led: ♠ 33.3% (3) · ♥ 100.0% (3) · ♦ 100.0% (3) · ♣ 100.0% (3)
vs par by strain: NT -3.47 (19) · a suit -0.68 (31)
vs par by level: part-score -1.72 (25) · game -0.68 (19) · slam -5.17 (6)
By role: declaring -0.95/bd (-3.79 vs par · 28) · defending -0.36/bd (+0.86 vs par · 22)
By vulnerability: vulnerable -0.95/bd (-1.93 vs par · 27) · not vulnerable -0.39/bd (-1.52 vs par · 23)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | H.Liu | L.Vornkahl – S.Jesse | Open | 10 | -23.6 | -2.36 | -3.50 |
| Round 2 | H.Liu | X.Wang – Q.Sun | Open | 10 | +14.7 | +1.47 | +3.00 |
| Round 4 | H.Liu | A.Domitrovic – M.Halavanja | Open | 10 | -16.4 | -1.64 | -4.20 |
| Round 6 | H.Liu | A.Manganella – S.Scata | Open | 10 | +1.9 | +0.19 | -0.90 |
| Round 7 | H.Liu | Y.Yin – Z.Fang | Open | 10 | -11.2 | -1.12 | -3.10 |
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 |
|---|---|---|---|---|---|---|---|
| +9.1 | Round 2 | 🇨🇳 CHINA RDFZ1 | 20 | 5♠ | ♣Q | -1 | +12 |
| +7.4 | Round 2 | 🇨🇳 CHINA RDFZ1 | 14 | 3♦ | ♣7 | -1 | +11 |
| +7.0 | Round 7 | 🇨🇳 CHINA | 8 | 6NT | ♥J | = | +0 |
| +5.7 | Round 6 | 🇮🇹 ITALIA | 30 | 4♥ | ♣A | -1 | +10 |
| +4.4 | Round 7 | 🇨🇳 CHINA | 2 | 2♥ | ♦J | = | +5 |
| +4.1 | Round 6 | 🇮🇹 ITALIA | 23 | 2♦ | ♥2 | = | +5 |
| +3.1 | Round 6 | 🇮🇹 ITALIA | 22 | 4♠ | ♦2 | +2 | +1 |
| +2.9 | Round 1 | 🇩🇪 GERMANY | 5 | 3♠ | ♦3 | = | +0 |
| +2.7 | Round 6 | 🇮🇹 ITALIA | 29 | 3NT | ♦3 | = | -13 |
| +2.7 | Round 7 | 🇨🇳 CHINA | 5 | 3NT | ♠Q | +1 | +0 |
| +2.6 | Round 6 | 🇮🇹 ITALIA | 26 | 4♠ | ♣10 | +1 | +1 |
| +2.4 | Round 2 | 🇨🇳 CHINA RDFZ1 | 15 | 3♦x | ♥A | -2 | +10 |
| +2.4 | Round 2 | 🇨🇳 CHINA RDFZ1 | 16 | 3NT | ♠6 | -2 | +8 |
| +2.4 | Round 4 | 🇭🇷 CROATIA | 1 | 3♦ | ♣6 | -1 | -2 |
| +2.0 | Round 7 | 🇨🇳 CHINA | 7 | 5♠ | ♥Q | +1 | +13 |
| +1.4 | Round 4 | 🇭🇷 CROATIA | 2 | 3♣ | ♦A | -2 | -1 |
| +1.4 | Round 4 | 🇭🇷 CROATIA | 3 | 1NT | ♠3 | -1 | +0 |
| +1.1 | Round 2 | 🇨🇳 CHINA RDFZ1 | 13 | 1NT | ♣7 | +1 | -1 |
| +0.9 | Round 1 | 🇩🇪 GERMANY | 10 | 1NT | ♠5 | +2 | +1 |
| +0.7 | Round 6 | 🇮🇹 ITALIA | 25 | 4♠ | ♠2 | +2 | +11 |
| +0.6 | Round 4 | 🇭🇷 CROATIA | 7 | 1NT | ♣K | +1 | -1 |
| +0.4 | Round 6 | 🇮🇹 ITALIA | 27 | 1NT | ♥J | -1 | -2 |
| +0.4 | Round 7 | 🇨🇳 CHINA | 4 | 6♦ | ♠A | -2 | +0 |
| +0.0 | Round 2 | 🇨🇳 CHINA RDFZ1 | 11 | 3NT | ♣2 | = | -1 |
| -0.1 | Round 1 | 🇩🇪 GERMANY | 4 | 2NT | ♥10 | -1 | -6 |
| -0.3 | Round 2 | 🇨🇳 CHINA RDFZ1 | 17 | 4♥ | ♣9 | = | +0 |
| -0.6 | Round 1 | 🇩🇪 GERMANY | 6 | 5♦ | ♥Q | -2 | +6 |
| -0.6 | Round 7 | 🇨🇳 CHINA | 6 | 4♠ | ♦9 | -1 | -12 |
| -0.7 | Round 2 | 🇨🇳 CHINA RDFZ1 | 18 | 1NT | ♦6 | = | -5 |
| -0.7 | Round 4 | 🇭🇷 CROATIA | 6 | 1NT | ♦6 | = | +2 |
| -1.0 | Round 4 | 🇭🇷 CROATIA | 5 | 4♠ | ♣A | +1 | +0 |
| -1.1 | Round 1 | 🇩🇪 GERMANY | 8 | 3♣ | ♦A | -1 | -2 |
| -1.3 | Round 6 | 🇮🇹 ITALIA | 24 | 3NT | ♠J | +1 | -11 |
| -1.4 | Round 4 | 🇭🇷 CROATIA | 8 | 2♠ | ♠2 | +5 | -4 |
| -2.1 | Round 2 | 🇨🇳 CHINA RDFZ1 | 19 | 1NT | ♠6 | = | -1 |
| -2.1 | Round 4 | 🇭🇷 CROATIA | 4 | 3♠ | ♥A | +2 | -10 |
| -3.3 | Round 1 | 🇩🇪 GERMANY | 1 | 1NT | ♥4 | +1 | -6 |
| -3.4 | Round 6 | 🇮🇹 ITALIA | 28 | 3♦ | ♥J | = | -6 |
| -3.4 | Round 7 | 🇨🇳 CHINA | 9 | 7♥ | ♣2 | = | +0 |
| -3.9 | Round 1 | 🇩🇪 GERMANY | 7 | 4♠ | ♥3 | -2 | -8 |
| -4.0 | Round 1 | 🇩🇪 GERMANY | 9 | 2♣x | ♥3 | -1 | -2 |
| -4.3 | Round 4 | 🇭🇷 CROATIA | 9 | 3♦ | ♥5 | +2 | -13 |
| -4.6 | Round 2 | 🇨🇳 CHINA RDFZ1 | 12 | 2♠ | ♥A | -1 | -3 |
| -6.1 | Round 1 | 🇩🇪 GERMANY | 2 | 3NT | ♦10 | -2 | -6 |
| -6.7 | Round 7 | 🇨🇳 CHINA | 3 | 3NT | ♦K | -1 | -12 |
| -8.0 | Round 7 | 🇨🇳 CHINA | 10 | 6♥ | ♠A | -1 | -13 |
| -8.3 | Round 1 | 🇩🇪 GERMANY | 3 | 5NT | ♠J | -1 | -12 |
| -9.0 | Round 7 | 🇨🇳 CHINA | 1 | 4♦x | ♦A | -2 | -12 |
| -12.7 | Round 4 | 🇭🇷 CROATIA | 10 | 6♠ | ♥J | -1 | -13 |
| -12.7 | Round 6 | 🇮🇹 ITALIA | 21 | 7♥ | ♠9 | = | -5 |