🇨🇳 LIU Yi Qian · CHINA
39rank
-63.2Butler · 64 bds
-0.99per board
±5.7swing
-1.27vs par /bd
-0.92adjusted /bd
by round
vs par split: bidding -1.72 · play +0.40
Strength of schedule: opponents averaged +0.07/bd (a tough draw) → opponent-adjusted -0.92/bd
Card play — on target: opening leads 71.4% · declarer play 66.7% · defence 95.5%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 71.4% (7) |
| Declarer play | · | 66.7% (9) |
| Defence | · | 95.5% (22) |
Opening leads by suit led: ♠ 50.0% (2) · ♥ 100.0% (3) · ♣ 50.0% (2)
vs par by strain: a suit -1.33 (43)
vs par by level: part-score -3.35 (23) · game +0.44 (18) · slam +6.00 (2)
By role: declaring -1.05/bd (-3.88 vs par · 32) · defending -0.93/bd (+1.34 vs par · 32)
By vulnerability: vulnerable -0.87/bd (-1.38 vs par · 32) · not vulnerable -1.11/bd (-1.16 vs par · 32)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Quarterfinal | P.Wang | B.Vriend – C.Arnolds | Open | 16 | -15.7 | -0.98 | -1.25 |
| Quarterfinal | P.Wang | B.Vriend – C.Arnolds | Open | 16 | -28.1 | -1.76 | -1.69 |
| Quarterfinal | P.Wang | J.Pasman – A.Simons | Closed | 16 | +0.6 | +0.04 | -1.31 |
| Quarterfinal | P.Wang | B.Vriend – C.Arnolds | Open | 16 | -20.0 | -1.25 | -0.81 |
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 |
|---|---|---|---|---|---|---|---|
| +13.6 | Quarterfinal | 🇳🇱 NETHERLANDS | 72 | 3♥x | ♥2 | -4 | +9 |
| +11.4 | Quarterfinal | 🇳🇱 NETHERLANDS | 12 | 5♥ | ♦5 | = | +11 |
| +11.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 87 | 4♠ | ♣6 | = | +0 |
| +9.1 | Quarterfinal | 🇳🇱 NETHERLANDS | 39 | 3N | ♥3 | -1 | +16 |
| +7.6 | Quarterfinal | 🇳🇱 NETHERLANDS | 79 | 3♦ | ♥J | +1 | +0 |
| +7.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 65 | 3N | ♣6 | +1 | -1 |
| +6.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 82 | 1N | ♠6 | +1 | +1 |
| +5.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 92 | 1N | ♠3 | = | -1 |
| +4.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 80 | 5♦ | ♣A | -2 | +6 |
| +4.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 91 | 3♣ | ♠K | -1 | +10 |
| +3.6 | Quarterfinal | 🇳🇱 NETHERLANDS | 78 | 3♥ | ♠2 | -1 | -2 |
| +2.6 | Quarterfinal | 🇳🇱 NETHERLANDS | 67 | 2♠ | ♦2 | -1 | -1 |
| +2.1 | Quarterfinal | 🇳🇱 NETHERLANDS | 37 | 2♥ | ♥A | = | +7 |
| +2.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 73 | 3♥ | ♣3 | -1 | +0 |
| +1.9 | Quarterfinal | 🇳🇱 NETHERLANDS | 4 | 4♠ | ♣A | -2 | +8 |
| +1.7 | Quarterfinal | 🇳🇱 NETHERLANDS | 43 | 3♠x | ♦K | -2 | -12 |
| +1.3 | Quarterfinal | 🇳🇱 NETHERLANDS | 15 | 4♠x | ♥K | -1 | +0 |
| +1.3 | Quarterfinal | 🇳🇱 NETHERLANDS | 44 | 1N | ♥4 | +1 | +0 |
| +1.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 94 | 4N | ♠9 | +2 | +1 |
| +0.9 | Quarterfinal | 🇳🇱 NETHERLANDS | 11 | 1♠ | ♦A | +1 | -1 |
| +0.7 | Quarterfinal | 🇳🇱 NETHERLANDS | 13 | 3♥ | ♣3 | +1 | -10 |
| +0.6 | Quarterfinal | 🇳🇱 NETHERLANDS | 10 | 3N | ♠2 | +3 | -13 |
| +0.3 | Quarterfinal | 🇳🇱 NETHERLANDS | 33 | 5♥ | ♠2 | = | +1 |
| +0.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 7 | 6♥ | ♠5 | = | -1 |
| +0.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 8 | 4♠ | ♦K | +1 | +4 |
| -0.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 68 | 3N | ♠J | +2 | +13 |
| -0.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 70 | 3N | ♠7 | -1 | +5 |
| +0.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 81 | 3♥ | ♣K | -2 | +0 |
| +0.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 83 | 4♥ | ♦K | +1 | +0 |
| +0.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 86 | 6♥ | ♠3 | +1 | +13 |
| +0.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 88 | 2♠ | ♦A | -1 | -4 |
| +0.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 93 | 2♠ | ♥10 | +1 | -8 |
| -0.4 | Quarterfinal | 🇳🇱 NETHERLANDS | 6 | 2♦ | ♣K | = | +0 |
| -0.4 | Quarterfinal | 🇳🇱 NETHERLANDS | 69 | 1N | ♣3 | -1 | +0 |
| -0.7 | Quarterfinal | 🇳🇱 NETHERLANDS | 2 | 3N | ♥K | -1 | +10 |
| -0.9 | Quarterfinal | 🇳🇱 NETHERLANDS | 40 | 4♠ | ♥2 | = | +0 |
| -1.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 84 | 1N | ♦Q | = | -1 |
| -1.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 96 | 2♠ | ♣K | +1 | +0 |
| -1.1 | Quarterfinal | 🇳🇱 NETHERLANDS | 48 | 5♣x | ♥A | -1 | -6 |
| -1.4 | Quarterfinal | 🇳🇱 NETHERLANDS | 47 | 4♠ | ♣7 | +1 | +0 |
| -1.8 | Quarterfinal | 🇳🇱 NETHERLANDS | 66 | 3♣ | ♠A | = | -6 |
| -1.9 | Quarterfinal | 🇳🇱 NETHERLANDS | 46 | 1N | ♣K | -2 | -5 |
| -2.4 | Quarterfinal | 🇳🇱 NETHERLANDS | 16 | 2♥ | ♠6 | +1 | -7 |
| -2.6 | Quarterfinal | 🇳🇱 NETHERLANDS | 77 | 3♥ | ♠K | = | -10 |
| -2.7 | Quarterfinal | 🇳🇱 NETHERLANDS | 1 | 5♥x | ♠Q | -3 | -2 |
| -3.3 | Quarterfinal | 🇳🇱 NETHERLANDS | 45 | 2N | ♥7 | = | +0 |
| -3.4 | Quarterfinal | 🇳🇱 NETHERLANDS | 36 | 2♠ | ♠2 | -3 | +4 |
| -3.4 | Quarterfinal | 🇳🇱 NETHERLANDS | 38 | Pass | -4 | ||
| -4.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 9 | 3♥ | ♠A | -1 | -5 |
| -4.3 | Quarterfinal | 🇳🇱 NETHERLANDS | 41 | 5♣x | ♥K | -1 | +0 |
| -4.9 | Quarterfinal | 🇳🇱 NETHERLANDS | 34 | 4♠ | ♠K | +1 | +0 |
| -5.4 | Quarterfinal | 🇳🇱 NETHERLANDS | 75 | 1N | ♣3 | -1 | -9 |
| -5.7 | Quarterfinal | 🇳🇱 NETHERLANDS | 5 | 3♣x | ♦5 | -3 | -9 |
| -5.8 | Quarterfinal | 🇳🇱 NETHERLANDS | 76 | 3N | ♠2 | = | +0 |
| -7.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 42 | 7N | ♦4 | -1 | -17 |
| -7.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 90 | 2♥ | ♣A | = | -15 |
| -7.9 | Quarterfinal | 🇳🇱 NETHERLANDS | 3 | 3N | ♥6 | = | +0 |
| -8.2 | Quarterfinal | 🇳🇱 NETHERLANDS | 71 | 3N | ♥2 | -2 | -8 |
| -8.7 | Quarterfinal | 🇳🇱 NETHERLANDS | 14 | 4♠x | ♥7 | -2 | -5 |
| -11.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 35 | 3N | ♥8 | -2 | -11 |
| -12.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 89 | 5♣ | ♠K | = | +5 |
| -13.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 85 | 5♠ | ♣6 | -1 | -17 |
| -13.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 95 | 5♦ | ♠A | -1 | +3 |
| -15.6 | Quarterfinal | 🇳🇱 NETHERLANDS | 74 | 1♠xx | ♣K | +1 | -17 |