🇨🇳 LIU Yizhou · CHINA
29rank
-19.8Butler · 98 bds
-0.20per board
±5.2swing
+0.19vs par /bd · #11/20
-0.52adjusted /bd
by round
vs par split: bidding -1.01 · play +0.79
Strength of schedule: opponents averaged -0.32/bd (an easy draw) → opponent-adjusted -0.52/bd
Card play — on target: opening leads 79.2% #14 of 18 · declarer play 64.7% #16 of 18 · defence 92.5% #3 of 18
Bidding activity — not a pass: 39.9% #15 of 20 (124/311)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 87.5% (8) | 75.0% (16) |
| Declarer play | 66.7% (3) | 64.3% (14) |
| Defence | 92.3% (13) | 92.6% (27) |
Opening leads by suit led: ♠ 72.7% (11) · ♥ 83.3% (6) · ♦ 100.0% (3) · ♣ 75.0% (4)
vs par by strain: NT +1.14 (28) · a suit -0.19 (70)
vs par by level: part-score +0.91 (34) · game +0.00 (57) · slam -1.71 (7)
By role: declaring -1.76/bd (-3.64 vs par · 39) · defending +0.83/bd (+2.73 vs par · 59)
By vulnerability: vulnerable -0.17/bd (+0.39 vs par · 49) · not vulnerable -0.23/bd (+0.00 vs par · 49)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Quarterfinal | Z.Yuan | A.Milne – J.Milne | Closed | 14 | +9.8 | +0.70 | +1.93 |
| Quarterfinal | Z.Yuan | J.Nakamaru-Pinder – J.Milne | Closed | 14 | +14.3 | +1.02 | -1.21 |
| Quarterfinal | Z.Yuan | G.Falconer – G.Freimanis | Closed | 14 | -7.1 | -0.51 | -0.64 |
| Semifinal | Z.Yuan | C.Dehaye – S.Bahbout | Closed | 14 | -16.3 | -1.16 | +0.14 |
| Semifinal | Z.Yuan | D.De Wit – E.Vandewiele | Closed | 14 | -12.6 | -0.90 | -1.36 |
| Final | Z.Yuan | S.Kushari – S.Roy | Open | 14 | +15.8 | +1.13 | +2.86 |
| Final | Z.Yuan | S.Kushari – S.Roy | Open | 14 | -23.7 | -1.69 | -0.36 |
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 | Semifinal | 🇧🇪 BELGIUM | 29 | 5♥ | ♠2 | +2 | +14 |
| +10.7 | Final | 🇮🇳 INDIA | 42 | 5♣ | -1 | +11 | |
| +9.4 | Quarterfinal | 🏴 SCOTLAND | 29 | 6♥ | ♦A | = | +0 |
| +9.0 | Quarterfinal | 🏴 SCOTLAND | 25 | 4♠ | ♥8 | = | +10 |
| +8.7 | Semifinal | 🇧🇪 BELGIUM | 25 | 6NT | ♠A | -1 | +14 |
| +8.0 | Quarterfinal | 🏴 SCOTLAND | 46 | 2NT | ♥J | -2 | +8 |
| +8.0 | Final | 🇮🇳 INDIA | 23 | 2♦ | +2 | +11 | |
| +7.7 | Semifinal | 🇧🇪 BELGIUM | 38 | 1NT | ♦3 | = | +11 |
| +7.7 | Final | 🇮🇳 INDIA | 24 | 4♠ | +1 | +7 | |
| +6.3 | Quarterfinal | 🏴 SCOTLAND | 53 | 3NT | ♥9 | -2 | +11 |
| +6.3 | Semifinal | 🇧🇪 BELGIUM | 32 | 2♥ | ♠A | +3 | -2 |
| +6.0 | Semifinal | 🇧🇪 BELGIUM | 28 | 4♠ | ♣Q | -2 | +13 |
| +5.7 | Quarterfinal | 🏴 SCOTLAND | 39 | 4♠ | ♠8 | -2 | +5 |
| +5.3 | Quarterfinal | 🏴 SCOTLAND | 35 | 3NT | ♠T | -2 | +8 |
| +5.0 | Quarterfinal | 🏴 SCOTLAND | 18 | 2NT | ♥Q | -2 | +7 |
| +5.0 | Quarterfinal | 🏴 SCOTLAND | 36 | 4♠x | ♣A | -3 | +3 |
| +5.0 | Final | 🇮🇳 INDIA | 30 | 2♣ | -1 | +5 | |
| +4.7 | Quarterfinal | 🏴 SCOTLAND | 56 | 1NT | ♠7 | +1 | +0 |
| +4.4 | Quarterfinal | 🏴 SCOTLAND | 38 | 3♥ | ♠K | -2 | +2 |
| +4.3 | Final | 🇮🇳 INDIA | 27 | 5♠x | +1 | +6 | |
| +3.7 | Final | 🇮🇳 INDIA | 22 | 5♦ | +1 | +11 | |
| +3.1 | Quarterfinal | 🏴 SCOTLAND | 16 | 4♥x | ♠A | -1 | +7 |
| +3.0 | Quarterfinal | 🏴 SCOTLAND | 28 | 4♠ | ♥J | -3 | +9 |
| +2.7 | Quarterfinal | 🏴 SCOTLAND | 50 | 4♠ | ♦A | -2 | -1 |
| +2.7 | Semifinal | 🇧🇪 BELGIUM | 39 | 1NT | ♦6 | +2 | +1 |
| +2.7 | Final | 🇮🇳 INDIA | 20 | 3♠ | +1 | +10 | |
| +2.6 | Quarterfinal | 🏴 SCOTLAND | 17 | 4♥ | ♣2 | = | +0 |
| +2.3 | Final | 🇮🇳 INDIA | 21 | 1♠ | -2 | +11 | |
| +2.0 | Semifinal | 🇧🇪 BELGIUM | 20 | 3NT | ♦4 | -2 | +7 |
| +2.0 | Semifinal | 🇧🇪 BELGIUM | 23 | 3NT | ♣3 | -3 | +5 |
| +2.0 | Semifinal | 🇧🇪 BELGIUM | 37 | 3♣ | ♣3 | +3 | +6 |
| +1.4 | Quarterfinal | 🏴 SCOTLAND | 20 | 2♠ | ♥7 | -2 | +7 |
| +1.3 | Quarterfinal | 🏴 SCOTLAND | 42 | 4♠ | ♦2 | -2 | +0 |
| +1.3 | Final | 🇮🇳 INDIA | 16 | 3NT | +1 | +0 | |
| +1.0 | Quarterfinal | 🏴 SCOTLAND | 21 | 1NT | ♠6 | = | +11 |
| +1.0 | Semifinal | 🇧🇪 BELGIUM | 35 | 6♥ | ♣3 | = | +0 |
| +1.0 | Final | 🇮🇳 INDIA | 26 | 4♠ | = | +0 | |
| +1.0 | Final | 🇮🇳 INDIA | 35 | 3NT | -2 | -3 | |
| +0.9 | Quarterfinal | 🏴 SCOTLAND | 52 | 1NTx | ♠5 | -1 | +1 |
| +0.7 | Quarterfinal | 🏴 SCOTLAND | 19 | 4♠ | ♣J | = | -1 |
| +0.7 | Semifinal | 🇧🇪 BELGIUM | 40 | 3NT | ♠8 | = | +1 |
| +0.7 | Semifinal | 🇧🇪 BELGIUM | 42 | 3NT | ♠K | = | +2 |
| +0.7 | Final | 🇮🇳 INDIA | 25 | 5♥ | = | +0 | |
| +0.7 | Final | 🇮🇳 INDIA | 33 | 4♥x | -2 | +12 | |
| +0.6 | Quarterfinal | 🏴 SCOTLAND | 15 | 2♥ | ♠K | +1 | -7 |
| +0.6 | Quarterfinal | 🏴 SCOTLAND | 30 | 4♦ | ♥A | = | +0 |
| +0.3 | Semifinal | 🇧🇪 BELGIUM | 27 | 3♠ | ♦3 | = | +0 |
| +0.1 | Quarterfinal | 🏴 SCOTLAND | 34 | 4♣ | ♠6 | -1 | +4 |
| -0.0 | Quarterfinal | 🏴 SCOTLAND | 22 | 1NT | ♠7 | = | -5 |
| -0.0 | Quarterfinal | 🏴 SCOTLAND | 47 | 4♠ | ♥A | +1 | +0 |
| -0.0 | Quarterfinal | 🏴 SCOTLAND | 49 | 4♥ | ♣J | = | -1 |
| -0.0 | Semifinal | 🇧🇪 BELGIUM | 22 | 4♥ | ♥A | -2 | -11 |
| -0.0 | Semifinal | 🇧🇪 BELGIUM | 34 | 5♦ | ♥K | = | +2 |
| -0.0 | Final | 🇮🇳 INDIA | 19 | 4♠ | -2 | +5 | |
| -0.0 | Final | 🇮🇳 INDIA | 41 | 3NT | +2 | +0 | |
| -0.1 | Quarterfinal | 🏴 SCOTLAND | 40 | 3♣ | ♥A | +2 | -6 |
| -0.6 | Quarterfinal | 🏴 SCOTLAND | 37 | 3♣ | ♠Q | = | +1 |
| -0.7 | Semifinal | 🇧🇪 BELGIUM | 17 | 7♠ | ♦5 | = | +0 |
| -0.7 | Final | 🇮🇳 INDIA | 37 | 4♠ | -1 | +5 | |
| -0.9 | Quarterfinal | 🏴 SCOTLAND | 41 | 4♦ | ♣K | = | +0 |
| -1.0 | Quarterfinal | 🏴 SCOTLAND | 55 | 3♠ | ♥Q | -1 | +3 |
| -1.3 | Semifinal | 🇧🇪 BELGIUM | 16 | 1NT | ♣7 | -1 | -2 |
| -1.3 | Final | 🇮🇳 INDIA | 31 | 3NT | +1 | -1 | |
| -1.7 | Final | 🇮🇳 INDIA | 39 | 4♥ | = | +0 | |
| -1.9 | Quarterfinal | 🏴 SCOTLAND | 51 | 4♥ | ♣J | +2 | -13 |
| -2.0 | Quarterfinal | 🏴 SCOTLAND | 44 | 3NT | ♠3 | = | +1 |
| -2.0 | Final | 🇮🇳 INDIA | 28 | 2♠ | = | +1 | |
| -2.3 | Quarterfinal | 🏴 SCOTLAND | 26 | 3NT | ♦8 | -2 | -13 |
| -2.3 | Final | 🇮🇳 INDIA | 17 | 3NT | +1 | -7 | |
| -2.9 | Quarterfinal | 🏴 SCOTLAND | 32 | 2♠ | ♦A | +2 | -10 |
| -3.0 | Final | 🇮🇳 INDIA | 34 | 3NT | -1 | +0 | |
| -3.1 | Quarterfinal | 🏴 SCOTLAND | 27 | 4♠ | ♦K | -2 | +0 |
| -3.3 | Quarterfinal | 🏴 SCOTLAND | 24 | 5♦ | ♥A | +1 | +11 |
| -3.3 | Quarterfinal | 🏴 SCOTLAND | 31 | 4♠ | ♣Q | +2 | -13 |
| -3.7 | Semifinal | 🇧🇪 BELGIUM | 18 | 4♠ | ♥7 | = | +0 |
| -3.9 | Quarterfinal | 🏴 SCOTLAND | 48 | 2♠ | ♠A | +1 | +0 |
| -4.0 | Final | 🇮🇳 INDIA | 36 | 3♠ | = | -6 | |
| -4.3 | Semifinal | 🇧🇪 BELGIUM | 21 | 3♣ | ♠3 | +3 | -13 |
| -4.3 | Semifinal | 🇧🇪 BELGIUM | 31 | 3♠ | ♥A | -2 | -8 |
| -4.3 | Final | 🇮🇳 INDIA | 15 | 4♠ | +1 | -4 | |
| -4.7 | Semifinal | 🇧🇪 BELGIUM | 15 | 4♠ | ♠T | = | -1 |
| -4.7 | Final | 🇮🇳 INDIA | 32 | 3NT | +1 | +0 | |
| -5.0 | Semifinal | 🇧🇪 BELGIUM | 24 | 5♦ | ♠A | -2 | -5 |
| -5.0 | Semifinal | 🇧🇪 BELGIUM | 36 | 4♥ | ♦A | -1 | -5 |
| -5.3 | Semifinal | 🇧🇪 BELGIUM | 26 | 3♣ | ♠5 | -1 | -5 |
| -6.3 | Quarterfinal | 🏴 SCOTLAND | 45 | 3♣ | ♠9 | -2 | -5 |
| -6.3 | Quarterfinal | 🏴 SCOTLAND | 54 | 2NT | ♣Q | = | +0 |
| -6.7 | Final | 🇮🇳 INDIA | 29 | 3NT | +3 | -10 | |
| -7.3 | Final | 🇮🇳 INDIA | 18 | 4♥ | -1 | -11 | |
| -7.3 | Final | 🇮🇳 INDIA | 40 | 5♥ | +1 | -11 | |
| -7.9 | Quarterfinal | 🏴 SCOTLAND | 23 | 4♥ | ♥7 | = | -9 |
| -8.3 | Quarterfinal | 🏴 SCOTLAND | 43 | 4♠ | ♦4 | = | -13 |
| -8.7 | Semifinal | 🇧🇪 BELGIUM | 33 | 4♥ | ♣A | -3 | -14 |
| -9.7 | Quarterfinal | 🏴 SCOTLAND | 33 | 7♠ | ♣A | -2 | -11 |
| -10.3 | Semifinal | 🇧🇪 BELGIUM | 19 | 6♥ | ♣T | = | +0 |
| -11.7 | Final | 🇮🇳 INDIA | 38 | 4♠x | = | -7 | |
| -12.7 | Semifinal | 🇧🇪 BELGIUM | 30 | 4♠x | ♣3 | -2 | -12 |
| -15.0 | Semifinal | 🇧🇪 BELGIUM | 41 | 6NT | ♠4 | -5 | -15 |