CHEN Gang · CHINA OPEN
vs par split: bidding +0.26 · play +0.53
Strength of schedule: opponents averaged -0.05/bd (an easy draw) → opponent-adjusted -0.15/bd
Card play — on target: opening leads 65.0% #388 of 476 · declarer play 93.8% #14 of 478 · defence 93.2% #53 of 478
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 50.0% (6) | 71.4% (14) |
| Declarer play | 100.0% (5) | 90.9% (11) |
| Defence | 86.7% (15) | 96.6% (29) |
Opening leads by suit led: ♠ 66.7% (6) · ♥ 66.7% (6) · ♦ 66.7% (3) · ♣ 60.0% (5)
vs par by strain: NT +0.24 (25) · a suit +1.04 (55)
vs par by level: part-score +0.57 (28) · game +1.21 (42) · slam -0.40 (10)
By role: declaring +0.67/bd (-0.42 vs par · 36) · defending -0.71/bd (+1.77 vs par · 44)
By vulnerability: vulnerable -0.14/bd (+0.84 vs par · 37) · not vulnerable -0.05/bd (+0.74 vs par · 43)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | L.Yang | B.Combescure – C.Grosset | Closed | 10 | +5.3 | +0.53 | +3.60 |
| Round 2 | L.Yang | H.Caspersen – H.Graversen | Closed | 10 | +21.1 | +2.11 | +1.30 |
| Round 4 | L.Yang | D.Gold – S.Ekenberg | Open | 10 | -0.6 | -0.06 | -0.60 |
| Round 5 | L.Yang | E.Greco – G.Hampson | Closed | 10 | -25.7 | -2.57 | -4.30 |
| Round 7 | L.Yang | N.L'Ecuyer – P.Street | Open | 10 | -13.8 | -1.38 | +0.90 |
| Round 8 | L.Yang | M.Bell – M.Byrne | Open | 10 | +24.5 | +2.45 | +5.00 |
| Round 9 | L.Yang | J.Lall – K.Bathurst | Closed | 10 | +0.7 | +0.07 | +0.60 |
| Round 10 | L.Yang | O.Saur – E.Saelensminde | Open | 10 | -18.8 | -1.88 | -0.20 |
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 |
|---|---|---|---|---|---|---|---|
| +12.4 | Round 1 | HATTIE | 10 | 6♥ | ♦3 | -1 | +13 |
| +12.1 | Round 8 | LILIENSTEIN | 1 | 4♠x | ♥K | -3 | +12 |
| +11.0 | Round 2 | DENMARK | 19 | 4♠ | ♣J | = | +0 |
| +10.0 | Round 2 | DENMARK | 14 | 2♠x | ♦6 | = | +9 |
| +8.0 | Round 8 | LILIENSTEIN | 10 | 3♣ | ♦10 | -4 | +7 |
| +5.7 | Round 5 | FLEISHER | 21 | 6♣ | ♥3 | = | -2 |
| +5.4 | Round 8 | LILIENSTEIN | 7 | 3NT | ♣K | -1 | +12 |
| +5.1 | Round 8 | LILIENSTEIN | 8 | 4♠ | ♦A | = | +7 |
| +4.9 | Round 2 | DENMARK | 11 | 1NTx | ♥A | +1 | +4 |
| +4.8 | Round 4 | SCHWARTZ | 15 | 5♠x | ♣5 | -2 | +3 |
| +4.0 | Round 4 | SCHWARTZ | 14 | 4♠ | ♣2 | +1 | +2 |
| +4.0 | Round 4 | SCHWARTZ | 19 | 4♥ | ♠A | -1 | +5 |
| +3.7 | Round 7 | FROGS | 17 | 3♥ | ♣J | -2 | +5 |
| +3.5 | Round 2 | DENMARK | 17 | 3NT | ♥A | +3 | +2 |
| +3.1 | Round 8 | LILIENSTEIN | 4 | 4♥ | ♠10 | -1 | +6 |
| +3.1 | Round 10 | GILLIS | 22 | 2♥ | ♣3 | +3 | +10 |
| +3.0 | Round 9 | MOSS | 16 | 6♠x | ♥10 | -4 | +0 |
| +2.9 | Round 1 | HATTIE | 8 | 3♦ | ♣5 | -2 | +8 |
| +2.8 | Round 9 | MOSS | 14 | 2♠ | ♦2 | +1 | +0 |
| +2.7 | Round 8 | LILIENSTEIN | 5 | 4♠ | ♥K | +1 | +0 |
| +2.6 | Round 4 | SCHWARTZ | 12 | 3♦ | ♥4 | = | +5 |
| +2.5 | Round 1 | HATTIE | 7 | 3NT | ♠3 | = | +0 |
| +2.5 | Round 10 | GILLIS | 29 | 3NT | ♠2 | +3 | +2 |
| +2.0 | Round 7 | FROGS | 11 | 3NT | ♥3 | -1 | +5 |
| +1.8 | Round 9 | MOSS | 13 | 3NT | ♣9 | +2 | +0 |
| +1.7 | Round 1 | HATTIE | 4 | 5♦ | ♥8 | +1 | +10 |
| +1.6 | Round 9 | MOSS | 15 | 4♠ | ♣5 | +1 | +0 |
| +1.6 | Round 10 | GILLIS | 28 | 2♠ | ♥K | = | +0 |
| +1.5 | Round 7 | FROGS | 18 | 3NT | ♥2 | +2 | +0 |
| +1.2 | Round 1 | HATTIE | 1 | 3♠ | ♥J | = | +0 |
| +1.1 | Round 2 | DENMARK | 20 | 1♦ | ♥5 | +1 | -1 |
| +1.0 | Round 5 | FLEISHER | 30 | 4♠ | ♦3 | +1 | +1 |
| +0.9 | Round 2 | DENMARK | 16 | 4♠ | ♣10 | +2 | +11 |
| +0.9 | Round 9 | MOSS | 20 | 3NT | ♥4 | +1 | +13 |
| +0.8 | Round 10 | GILLIS | 25 | 3NT | ♣6 | +2 | +0 |
| +0.7 | Round 2 | DENMARK | 13 | 4♥ | ♠8 | +1 | +0 |
| +0.6 | Round 9 | MOSS | 12 | 6♦ | ♠8 | = | +2 |
| +0.5 | Round 8 | LILIENSTEIN | 6 | 3NT | ♠4 | = | +0 |
| +0.3 | Round 8 | LILIENSTEIN | 9 | 2♠ | ♦Q | +2 | +1 |
| +0.2 | Round 9 | MOSS | 19 | 3♦ | ♠2 | +1 | -1 |
| -0.0 | Round 1 | HATTIE | 5 | 3NT | ♥6 | -1 | +5 |
| -0.0 | Round 2 | DENMARK | 12 | 2♠ | ♦K | = | +1 |
| -0.0 | Round 4 | SCHWARTZ | 18 | 2♥ | ♣6 | = | +0 |
| -0.0 | Round 5 | FLEISHER | 26 | 3♣ | ♦K | = | +1 |
| -0.1 | Round 2 | DENMARK | 18 | 3NT | ♠Q | +1 | +0 |
| -0.2 | Round 7 | FROGS | 20 | 2♠ | ♦A | = | -1 |
| -0.3 | Round 7 | FROGS | 12 | 2♣ | ♦A | +2 | +0 |
| -0.4 | Round 4 | SCHWARTZ | 16 | 1NT | ♥6 | -1 | +0 |
| -0.6 | Round 5 | FLEISHER | 25 | 3NT | ♥5 | +2 | -1 |
| -0.8 | Round 5 | FLEISHER | 29 | 3NT | ♥K | +2 | +0 |
| -1.2 | Round 10 | GILLIS | 24 | 6NT | ♠9 | = | +0 |
| -1.3 | Round 7 | FROGS | 15 | 4♥ | ♣K | = | +0 |
| -1.5 | Round 7 | FROGS | 16 | 6♠ | ♥Q | = | +11 |
| -1.6 | Round 4 | SCHWARTZ | 20 | 2♦ | ♣A | -1 | -5 |
| -1.8 | Round 10 | GILLIS | 21 | 3NT | ♣2 | +1 | -1 |
| -1.9 | Round 1 | HATTIE | 2 | 3♥ | ♦9 | = | +0 |
| -2.0 | Round 5 | FLEISHER | 28 | 3♠ | ♦Q | -2 | +0 |
| -2.1 | Round 5 | FLEISHER | 27 | 1NT | ♦5 | = | -6 |
| -2.2 | Round 9 | MOSS | 18 | 2♠ | ♥4 | +1 | +0 |
| -2.2 | Round 10 | GILLIS | 27 | 3♥ | ♦8 | +1 | +6 |
| -2.4 | Round 1 | HATTIE | 9 | 5♦ | ♣3 | = | +0 |
| -2.8 | Round 8 | LILIENSTEIN | 2 | 4♠ | ♦A | -2 | +5 |
| -2.8 | Round 9 | MOSS | 11 | 3NT | ♠10 | +1 | +0 |
| -3.0 | Round 4 | SCHWARTZ | 11 | 5♣ | ♦K | = | +1 |
| -3.6 | Round 7 | FROGS | 19 | 4♥ | ♦A | = | +0 |
| -3.6 | Round 10 | GILLIS | 26 | 3NT | ♠8 | = | +0 |
| -3.7 | Round 4 | SCHWARTZ | 17 | 2♣ | ♦K | +3 | -7 |
| -3.8 | Round 1 | HATTIE | 3 | 6♠ | ♠4 | +1 | +11 |
| -4.3 | Round 5 | FLEISHER | 23 | 6♣x | ♦K | -1 | -12 |
| -5.2 | Round 9 | MOSS | 17 | 5♣x | ♠K | -1 | -8 |
| -5.6 | Round 7 | FROGS | 14 | 4♠ | ♦8 | -1 | +2 |
| -7.3 | Round 1 | HATTIE | 6 | 4♦ | ♥4 | = | -11 |
| -7.3 | Round 4 | SCHWARTZ | 13 | 3NT | ♥A | -3 | -10 |
| -8.5 | Round 7 | FROGS | 13 | 6♠x | ♥10 | +1 | -13 |
| -8.7 | Round 10 | GILLIS | 23 | 5♣ | ♠J | = | -10 |
| -9.3 | Round 10 | GILLIS | 30 | 1NTx | ♥6 | +3 | -9 |
| -9.6 | Round 5 | FLEISHER | 22 | 3NTx | ♥9 | = | -10 |
| -9.9 | Round 8 | LILIENSTEIN | 3 | 3NT | ♥2 | = | +0 |
| -10.9 | Round 2 | DENMARK | 15 | 4♠ | ♥K | = | -13 |
| -13.0 | Round 5 | FLEISHER | 24 | 7♦ | ♥A | -1 | -14 |