LIU Buwen · CHINA RDFZ YELLOW
121rank
-74.2Butler · 80 bds
-0.93per board
±4.4swing
-1.12vs par /bd · #107/124
-1.12adjusted /bd
by round
vs par split: bidding -0.42 · play -0.57
Strength of schedule: opponents averaged -0.20/bd (an easy draw) → opponent-adjusted -1.12/bd
Card play — on target: opening leads 61.5% #111 of 124 · declarer play 50.0% #107 of 124 · defence 78.4% #73 of 124
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 50.0% (6) | 71.4% (7) |
| Declarer play | 71.4% (7) | 33.3% (9) |
| Defence | 70.6% (17) | 85.0% (20) |
Opening leads by suit led: ♠ 75.0% (4) · ♥ 66.7% (3) · ♦ 33.3% (3) · ♣ 66.7% (3)
vs par by strain: NT +0.68 (31) · a suit -2.06 (48)
vs par by level: part-score -1.69 (32) · game -0.04 (45) · slam -11.00 (2)
By role: declaring -1.31/bd (-4.09 vs par · 43) · defending -0.49/bd (+2.32 vs par · 37)
By vulnerability: vulnerable -1.33/bd (-1.48 vs par · 40) · not vulnerable -0.53/bd (-0.78 vs par · 40)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | Y.Yao | Y.Zhang – B.Yang | Open | 10 | -38.0 | -3.80 | -0.50 |
| Round 2 | Y.Yao | H.Hou – M.Liu | Open | 10 | +5.6 | +0.56 | -1.60 |
| Round 3 | Y.Yao | Y.Fu – X.Lu | Open | 10 | -12.0 | -1.20 | -0.40 |
| Round 4 | Y.Yao | A.Cohen-Salmon – B.Vibert | Closed | 10 | +0.1 | +0.01 | +0.80 |
| Round 5 | Y.Yao | H.Li – Z.Lin | Open | 10 | -19.4 | -1.94 | -3.70 |
| Round 6 | Y.Yao | W.Li – C.Li | Closed | 10 | -8.2 | -0.82 | -0.80 |
| Round 7 | Y.Yao | MENEZES KAMRYN – BHATT ANSHUL | Closed | 10 | +21.9 | +2.19 | +2.80 |
| Round 8 | Y.Yao | Y.Wang – Y.Wang | Open | 10 | -24.2 | -2.42 | -5.60 |
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 |
|---|---|---|---|---|---|---|---|
| +10.8 | Round 7 | INDIA | 5 | 4♠ | ♣10 | -1 | +13 |
| +10.0 | Round 4 | AUVERGNE RHONE ALPES | 6 | 3NT | ♦A | -1 | +13 |
| +7.9 | Round 2 | CHINA RDFZ HOPE 1 | 18 | 4♥ | ♣Q | -1 | +5 |
| +5.7 | Round 6 | SHENGXING JUPITER | 28 | 2♠ | ♦8 | +1 | +10 |
| +5.5 | Round 4 | AUVERGNE RHONE ALPES | 2 | 3NT | ♦3 | -1 | +10 |
| +4.6 | Round 2 | CHINA RDFZ HOPE 1 | 13 | 4♥ | ♠K | = | +0 |
| +4.5 | Round 6 | SHENGXING JUPITER | 26 | 3NT | ♠3 | -2 | +7 |
| +4.4 | Round 7 | INDIA | 9 | 4♥ | ♣9 | +1 | +4 |
| +4.3 | Round 2 | CHINA RDFZ HOPE 1 | 14 | 4♠ | ♥8 | -2 | +5 |
| +4.3 | Round 3 | SHENGXING RED | 24 | 1NT | ♦4 | -5 | +4 |
| +3.5 | Round 2 | CHINA RDFZ HOPE 1 | 19 | 4♥ | ♠10 | = | -11 |
| +3.4 | Round 6 | SHENGXING JUPITER | 27 | 4♠ | ♣5 | +1 | +0 |
| +3.4 | Round 7 | INDIA | 4 | 4♥ | ♦8 | -1 | +12 |
| +3.2 | Round 3 | SHENGXING RED | 22 | 3♥ | ♠K | +2 | +6 |
| +3.2 | Round 8 | CHINA SHJS | 20 | 3NT | ♣J | +1 | -1 |
| +3.1 | Round 7 | INDIA | 2 | 2♥ | ♣4 | +2 | -6 |
| +2.6 | Round 7 | INDIA | 1 | 6♠ | ♦6 | = | -11 |
| +2.5 | Round 5 | TJ BRIDGE 2 | 17 | 3♦ | ♣K | +2 | -6 |
| +2.4 | Round 1 | SHENGXING GREEN | 6 | 3NT | ♥K | = | +7 |
| +2.2 | Round 2 | CHINA RDFZ HOPE 1 | 15 | 3NT | ♠6 | +2 | +1 |
| +2.2 | Round 5 | TJ BRIDGE 2 | 12 | 1NT | ♣K | -2 | +5 |
| +2.1 | Round 4 | AUVERGNE RHONE ALPES | 4 | 3NT | ♦9 | +3 | +1 |
| +1.9 | Round 2 | CHINA RDFZ HOPE 1 | 16 | 3NT | ♥4 | +3 | +17 |
| +1.8 | Round 7 | INDIA | 10 | 3NT | ♥2 | = | +0 |
| +1.5 | Round 8 | CHINA SHJS | 12 | 1NT | ♣J | -1 | +5 |
| +1.4 | Round 4 | AUVERGNE RHONE ALPES | 7 | 2♥ | ♦9 | +1 | +1 |
| +1.2 | Round 3 | SHENGXING RED | 28 | 3NT | ♦J | +2 | +0 |
| +1.0 | Round 3 | SHENGXING RED | 30 | 4♥ | ♦7 | -1 | +2 |
| +0.2 | Round 3 | SHENGXING RED | 27 | 2NT | ♠Q | +2 | -6 |
| +0.2 | Round 7 | INDIA | 6 | 3NT | ♣2 | +1 | +0 |
| -0.0 | Round 1 | SHENGXING GREEN | 7 | 4♠ | ♥Q | -1 | +6 |
| +0.0 | Round 2 | CHINA RDFZ HOPE 1 | 20 | 1♥ | ♦K | +1 | -10 |
| +0.0 | Round 5 | TJ BRIDGE 2 | 11 | 1NT | ♠2 | = | +0 |
| -0.0 | Round 5 | TJ BRIDGE 2 | 16 | 1NT | ♠5 | -1 | -4 |
| -0.4 | Round 5 | TJ BRIDGE 2 | 15 | 4♥ | ♣4 | = | -1 |
| -0.4 | Round 7 | INDIA | 8 | 1NT | ♣J | +1 | +0 |
| -0.6 | Round 8 | CHINA SHJS | 15 | 5♦ | ♠J | = | -11 |
| -0.7 | Round 4 | AUVERGNE RHONE ALPES | 9 | 3NT | ♣6 | = | -11 |
| -0.8 | Round 4 | AUVERGNE RHONE ALPES | 5 | 1NT | ♦A | -1 | -2 |
| -0.9 | Round 6 | SHENGXING JUPITER | 22 | 4♥ | ♠K | +1 | +0 |
| -1.0 | Round 8 | CHINA SHJS | 13 | 3♦ | ♣J | +1 | -10 |
| -1.2 | Round 3 | SHENGXING RED | 25 | 2♦ | ♠5 | +3 | -1 |
| -1.4 | Round 1 | SHENGXING GREEN | 9 | 2♠ | ♣6 | -3 | -1 |
| -1.4 | Round 5 | TJ BRIDGE 2 | 19 | 4♠ | ♥A | -2 | -6 |
| -1.6 | Round 6 | SHENGXING JUPITER | 25 | 2NT | ♠4 | +1 | -1 |
| -1.6 | Round 7 | INDIA | 3 | 2♦ | ♥J | +1 | +7 |
| -1.8 | Round 4 | AUVERGNE RHONE ALPES | 1 | 4♥ | ♦K | +2 | +11 |
| -2.0 | Round 1 | SHENGXING GREEN | 8 | 4♥ | ♣Q | = | +9 |
| -2.3 | Round 3 | SHENGXING RED | 26 | 3NT | ♥3 | = | +1 |
| -2.4 | Round 1 | SHENGXING GREEN | 2 | 3NT | ♥9 | = | +1 |
| -2.4 | Round 7 | INDIA | 7 | 3♠ | ♣J | -2 | +9 |
| -2.6 | Round 8 | CHINA SHJS | 17 | 2♣ | ♥Q | = | -5 |
| -2.7 | Round 6 | SHENGXING JUPITER | 21 | 1NT | ♥A | +1 | -1 |
| -3.0 | Round 5 | TJ BRIDGE 2 | 13 | 4♠ | ♣4 | +1 | -1 |
| -3.2 | Round 6 | SHENGXING JUPITER | 24 | 5♣ | ♠A | -1 | -4 |
| -3.4 | Round 3 | SHENGXING RED | 29 | 3♣ | ♠6 | -1 | +1 |
| -3.4 | Round 8 | CHINA SHJS | 18 | 4♣ | ♠K | -1 | -8 |
| -3.6 | Round 6 | SHENGXING JUPITER | 30 | 1NT | ♦A | = | -5 |
| -3.7 | Round 2 | CHINA RDFZ HOPE 1 | 12 | 5♦x | ♥K | -3 | -12 |
| -3.7 | Round 8 | CHINA SHJS | 14 | 5♥ | ♦Q | +2 | -7 |
| -3.8 | Round 1 | SHENGXING GREEN | 3 | 3NT | ♥5 | +3 | -2 |
| -4.0 | Round 8 | CHINA SHJS | 11 | 4♥ | ♣8 | -2 | +1 |
| -4.5 | Round 6 | SHENGXING JUPITER | 29 | 2♠ | ♥K | +1 | -8 |
| -4.6 | Round 3 | SHENGXING RED | 21 | 3♥ | ♣10 | = | +0 |
| -4.6 | Round 4 | AUVERGNE RHONE ALPES | 10 | 3♣ | ♣4 | -1 | -6 |
| -4.8 | Round 4 | AUVERGNE RHONE ALPES | 3 | 3♠ | ♣A | +1 | -1 |
| -4.9 | Round 2 | CHINA RDFZ HOPE 1 | 11 | 2♥ | ♦4 | = | +0 |
| -5.0 | Round 5 | TJ BRIDGE 2 | 20 | Pass | -12 | ||
| -5.3 | Round 6 | SHENGXING JUPITER | 23 | 3NT | ♦4 | -1 | -6 |
| -5.8 | Round 1 | SHENGXING GREEN | 1 | 3NT | ♠K | = | +1 |
| -6.1 | Round 1 | SHENGXING GREEN | 4 | 4♠ | ♦Q | -2 | -12 |
| -6.2 | Round 1 | SHENGXING GREEN | 5 | 3NT | ♦Q | +2 | -1 |
| -6.2 | Round 4 | AUVERGNE RHONE ALPES | 8 | 5♥ | ♣A | = | -8 |
| -6.4 | Round 8 | CHINA SHJS | 19 | 4♥ | ♦3 | -1 | -12 |
| -6.6 | Round 5 | TJ BRIDGE 2 | 18 | 5♣x | ♥2 | -1 | -8 |
| -7.2 | Round 8 | CHINA SHJS | 16 | 2NT | ♦6 | -2 | -8 |
| -7.7 | Round 5 | TJ BRIDGE 2 | 14 | 3NT | ♣A | +2 | -4 |
| -10.2 | Round 2 | CHINA RDFZ HOPE 1 | 17 | 6♠x | ♣A | -1 | -11 |
| -10.4 | Round 3 | SHENGXING RED | 23 | 4♥ | ♦4 | +1 | -11 |
| -12.7 | Round 1 | SHENGXING GREEN | 10 | 4♣x | ♠Q | -5 | -13 |