CHENG Xiaodong · CHENGDUGUOLI
97rank
+44.7Butler · 90 bds
+0.50per board
±4.3swing
-0.17vs par /bd · #346/567
+0.36adjusted /bd
by round
vs par split: bidding -0.40 · play +0.23
Strength of schedule: opponents averaged -0.14/bd (an easy draw) → opponent-adjusted +0.36/bd
Card play — on target: opening leads 50.0% #565 of 567 · declarer play 76.5% #283 of 567 · defence 77.6% #473 of 567
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 80.0% (5) | 38.5% (13) |
| Declarer play | 75.0% (4) | 76.9% (13) |
| Defence | 58.3% (12) | 83.8% (37) |
Opening leads by suit led: ♠ 66.7% (3) · ♥ 100.0% (2) · ♦ 37.5% (8) · ♣ 40.0% (5)
vs par by strain: NT +0.59 (22) · a suit -0.41 (68)
vs par by level: part-score -0.46 (33) · game -0.33 (55) · slam +9.00 (2)
By role: declaring -0.07/bd (-2.27 vs par · 41) · defending +0.97/bd (+1.59 vs par · 49)
By vulnerability: vulnerable +0.80/bd (+0.53 vs par · 45) · not vulnerable +0.19/bd (-0.87 vs par · 45)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | X.Wei | J.Campos – S.Garafulic | Closed | 10 | -4.1 | -0.41 | -0.80 |
| Round 2 | X.Wei | L.Chen – H.So | Open | 10 | +1.0 | +0.10 | -1.70 |
| Round 3 | X.Wei | Y.Wei – D.Yu | Closed | 10 | +1.4 | +0.14 | +1.00 |
| Round 4 | X.Wei | R.Kaplan – L.Ichilcik | Closed | 10 | +21.9 | +2.19 | +2.70 |
| Round 5 | X.Wei | J.Kim – C.Lee | Closed | 10 | +20.7 | +2.07 | +1.40 |
| Round 8 | X.Wei | H.Kane – A.Symons | Open | 10 | +11.9 | +1.19 | +1.30 |
| Round 9 | X.Wei | S.Humphries – D.Humphries | Closed | 10 | -8.4 | -0.84 | -3.90 |
| Round 12 | X.Wei | A.Nurhalim – M.Hartono | Closed | 10 | +14.6 | +1.46 | +1.10 |
| Round 14 | X.Wei | L.Feng – X.Wu | Open | 10 | -14.3 | -1.43 | -2.60 |
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 |
|---|---|---|---|---|---|---|---|
| +10.5 | Round 3 | JILIN BA | 30 | 5♥x | ♠A | -1 | +11 |
| +10.1 | Round 12 | INDONESIA Seniors | 28 | 6NT | ♣9 | -3 | +15 |
| +9.5 | Round 12 | INDONESIA Seniors | 29 | 4♠ | ♣8 | = | +10 |
| +8.7 | Round 4 | OZ ANGELS | 7 | 4♠ | ♣K | = | +10 |
| +7.8 | Round 3 | JILIN BA | 23 | 2♣x | ♠J | +1 | +10 |
| +7.1 | Round 5 | NEWB | 13 | 4♠ | ♥Q | -1 | +12 |
| +7.1 | Round 9 | GINNAN | 21 | 4♠x | ♦A | -1 | +11 |
| +6.6 | Round 4 | OZ ANGELS | 4 | 5♦ | ♠A | -1 | +13 |
| +6.2 | Round 5 | NEWB | 19 | 4♠ | ♦5 | = | +7 |
| +5.9 | Round 8 | SCOTLAND BLUE | 11 | 4♠x | ♥K | +1 | +6 |
| +5.9 | Round 12 | INDONESIA Seniors | 24 | 4♠ | ♣A | +1 | +0 |
| +5.6 | Round 12 | INDONESIA Seniors | 27 | 4♠ | ♣K | -1 | +10 |
| +5.2 | Round 1 | BRAZIL Mixed | 1 | 4♠ | ♥7 | = | +0 |
| +5.2 | Round 2 | CHINESE TAIPEI Mixed | 19 | 3NT | ♦10 | -1 | +6 |
| +5.2 | Round 8 | SCOTLAND BLUE | 18 | 5♦x | ♣5 | = | +3 |
| +4.9 | Round 14 | WUHU BRIDGE TEAM | 19 | 3NT | ♥7 | -3 | +5 |
| +4.7 | Round 1 | BRAZIL Mixed | 4 | 4♥ | ♦8 | -1 | +6 |
| +3.8 | Round 2 | CHINESE TAIPEI Mixed | 16 | 3NT | ♣7 | = | +7 |
| +3.7 | Round 5 | NEWB | 15 | 4♥ | ♠A | -2 | +0 |
| +3.6 | Round 8 | SCOTLAND BLUE | 12 | 4♥ | ♦K | +2 | +11 |
| +3.6 | Round 8 | SCOTLAND BLUE | 20 | 2♥ | ♣5 | -1 | +0 |
| +3.5 | Round 3 | JILIN BA | 25 | 4♥ | ♦A | -1 | +0 |
| +3.5 | Round 8 | SCOTLAND BLUE | 16 | 3NT | ♠9 | -2 | +7 |
| +3.5 | Round 14 | WUHU BRIDGE TEAM | 18 | 3NT | ♠4 | +2 | +4 |
| +3.4 | Round 4 | OZ ANGELS | 10 | 2♦ | ♣A | -2 | +3 |
| +3.3 | Round 2 | CHINESE TAIPEI Mixed | 11 | 5♦ | ♥2 | = | -1 |
| +3.2 | Round 4 | OZ ANGELS | 2 | 6♣ | ♥K | -1 | +3 |
| +3.1 | Round 1 | BRAZIL Mixed | 8 | 4♠ | ♥4 | -1 | +10 |
| +2.1 | Round 5 | NEWB | 14 | 1NT | ♦J | +1 | +6 |
| +1.9 | Round 8 | SCOTLAND BLUE | 17 | 5♣ | ♦A | -2 | +5 |
| +1.7 | Round 4 | OZ ANGELS | 8 | 2NT | ♣5 | -1 | +4 |
| +1.6 | Round 9 | GINNAN | 29 | 2♠ | ♥A | +2 | -1 |
| +1.4 | Round 2 | CHINESE TAIPEI Mixed | 14 | 3♦ | ♥7 | +1 | +6 |
| +1.4 | Round 12 | INDONESIA Seniors | 30 | 2NT | ♠10 | -1 | +5 |
| +1.4 | Round 14 | WUHU BRIDGE TEAM | 13 | 2♠ | ♦6 | = | +0 |
| +1.2 | Round 5 | NEWB | 16 | 3♣ | ♥3 | +2 | -6 |
| +1.2 | Round 9 | GINNAN | 28 | 3♥ | ♣10 | -1 | +4 |
| +1.1 | Round 3 | JILIN BA | 26 | 4♥ | ♠K | +2 | +13 |
| +1.0 | Round 2 | CHINESE TAIPEI Mixed | 12 | 4♥ | ♥7 | -2 | -9 |
| +1.0 | Round 5 | NEWB | 12 | 2♦ | ♣7 | = | -1 |
| +0.9 | Round 5 | NEWB | 17 | 3♠ | ♣J | +1 | +1 |
| +0.7 | Round 12 | INDONESIA Seniors | 23 | 2♥ | ♦2 | = | +1 |
| +0.6 | Round 5 | NEWB | 11 | 2NT | ♣3 | = | +1 |
| +0.5 | Round 1 | BRAZIL Mixed | 7 | 1NT | ♥4 | = | +1 |
| +0.5 | Round 4 | OZ ANGELS | 5 | 4♠ | ♦J | = | +0 |
| +0.3 | Round 9 | GINNAN | 27 | 2♠ | ♥A | +1 | +7 |
| +0.0 | Round 8 | SCOTLAND BLUE | 14 | 3NT | ♣3 | +2 | +0 |
| -0.1 | Round 3 | JILIN BA | 22 | 3NT | ♣Q | -1 | -5 |
| -0.3 | Round 4 | OZ ANGELS | 1 | 4♥ | ♠K | +1 | +0 |
| -0.4 | Round 4 | OZ ANGELS | 9 | 2♠ | ♦J | = | +5 |
| -0.4 | Round 5 | NEWB | 20 | 2♠ | ♦7 | +1 | +0 |
| -0.5 | Round 1 | BRAZIL Mixed | 2 | 3♥ | ♣A | -1 | +1 |
| -0.5 | Round 8 | SCOTLAND BLUE | 15 | 3NT | ♠2 | = | -1 |
| -0.6 | Round 1 | BRAZIL Mixed | 10 | 2NT | ♥2 | +1 | -1 |
| -0.6 | Round 4 | OZ ANGELS | 3 | 4♥ | ♦3 | +2 | -11 |
| -0.6 | Round 14 | WUHU BRIDGE TEAM | 12 | 4♠ | ♦2 | = | +0 |
| -0.8 | Round 3 | JILIN BA | 24 | 5♦ | ♠A | +2 | +1 |
| -0.9 | Round 4 | OZ ANGELS | 6 | 2♥ | ♠7 | -1 | +0 |
| -0.9 | Round 9 | GINNAN | 23 | 4♥x | ♦A | -3 | -14 |
| -1.6 | Round 2 | CHINESE TAIPEI Mixed | 13 | 1NT | ♦K | +1 | +0 |
| -1.7 | Round 5 | NEWB | 18 | 3NT | ♥K | -1 | -6 |
| -1.7 | Round 9 | GINNAN | 25 | 4♥ | ♦8 | +2 | -11 |
| -1.7 | Round 14 | WUHU BRIDGE TEAM | 17 | 4♠ | ♣7 | +1 | +0 |
| -1.8 | Round 9 | GINNAN | 30 | 4♠ | ♦A | -1 | -10 |
| -1.9 | Round 3 | JILIN BA | 21 | 3NT | ♦3 | = | +2 |
| -1.9 | Round 9 | GINNAN | 24 | 3♥ | ♦5 | -2 | -5 |
| -1.9 | Round 12 | INDONESIA Seniors | 21 | 2♦ | ♥A | -2 | -3 |
| -2.0 | Round 2 | CHINESE TAIPEI Mixed | 20 | 2♠ | ♣5 | = | -9 |
| -2.1 | Round 14 | WUHU BRIDGE TEAM | 14 | 1NT | ♣10 | +2 | -1 |
| -2.2 | Round 12 | INDONESIA Seniors | 26 | 3♥ | ♦4 | +2 | -2 |
| -2.8 | Round 2 | CHINESE TAIPEI Mixed | 18 | 2♥ | ♥2 | = | -1 |
| -2.8 | Round 14 | WUHU BRIDGE TEAM | 20 | 2♥ | ♦A | = | -6 |
| -3.1 | Round 14 | WUHU BRIDGE TEAM | 16 | 4♠x | ♥A | -1 | -6 |
| -3.2 | Round 9 | GINNAN | 22 | 5♦ | ♥8 | -1 | -5 |
| -3.3 | Round 2 | CHINESE TAIPEI Mixed | 15 | 4♥ | ♦9 | = | -6 |
| -3.6 | Round 1 | BRAZIL Mixed | 3 | 4♥ | ♦K | -1 | -5 |
| -3.7 | Round 8 | SCOTLAND BLUE | 19 | 3NT | ♠2 | -1 | -10 |
| -3.8 | Round 1 | BRAZIL Mixed | 6 | 2♠ | ♦A | = | -11 |
| -4.0 | Round 2 | CHINESE TAIPEI Mixed | 17 | 4♠ | ♥2 | -1 | -10 |
| -4.2 | Round 1 | BRAZIL Mixed | 9 | 3♥ | ♦A | = | -8 |
| -4.5 | Round 14 | WUHU BRIDGE TEAM | 15 | 4♠ | ♥4 | = | -11 |
| -4.9 | Round 1 | BRAZIL Mixed | 5 | 4♠ | ♣9 | +1 | -1 |
| -5.2 | Round 3 | JILIN BA | 29 | 4♠ | ♥7 | = | -10 |
| -5.8 | Round 3 | JILIN BA | 28 | 4♠x | ♥Q | = | -4 |
| -6.6 | Round 12 | INDONESIA Seniors | 22 | 5♣ | ♦9 | +1 | -11 |
| -7.6 | Round 8 | SCOTLAND BLUE | 13 | 5♦ | ♠2 | -2 | -8 |
| -7.7 | Round 3 | JILIN BA | 27 | 4♥ | ♣6 | -1 | -8 |
| -7.9 | Round 12 | INDONESIA Seniors | 25 | 4♥ | ♣A | +2 | -14 |
| -9.1 | Round 9 | GINNAN | 26 | 1NT | ♥9 | +4 | -15 |
| -9.3 | Round 14 | WUHU BRIDGE TEAM | 11 | 3NT | ♣10 | -3 | -11 |