DONG Chunhui · CHINA OPEN TEAM 1
vs par split: bidding -1.67 · play +0.52
Strength of schedule: opponents averaged +0.05/bd (an average draw) → opponent-adjusted -0.71/bd
Card play — on target: opening leads 94.1% #9 of 107 · declarer play 81.2% #29 of 107 · defence 83.8% #77 of 107
Bidding activity — not a pass: 37.1% #92 of 107 (95/256)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 75.0% (4) | 100.0% (13) |
| Declarer play | 60.0% (5) | 90.9% (11) |
| Defence | 87.5% (8) | 82.8% (29) |
Opening leads by suit led: ♠ 80.0% (5) · ♥ 100.0% (5) · ♦ 100.0% (6) · ♣ 100.0% (1)
vs par by strain: NT -1.79 (24) · a suit -0.88 (60)
vs par by level: part-score -1.86 (35) · game -0.10 (42) · slam -3.86 (7)
By role: declaring -0.65/bd (-3.25 vs par · 47) · defending -0.89/bd (+1.54 vs par · 37)
By vulnerability: vulnerable -1.91/bd (-2.50 vs par · 42) · not vulnerable +0.39/bd (+0.21 vs par · 42)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | G.Shen | K.Nowak – M.Nowosadzki | Closed | 14 | -15.8 | -1.13 | -2.14 |
| Round 3 | G.Shen | J.Lesniczak – V.Valchev | Open | 14 | -18.3 | -1.31 | -3.29 |
| Round 4 | G.Shen | D.Bilde – L.Lebowitz | Open | 14 | -21.9 | -1.56 | -2.64 |
| Round 5 | G.Shen | P.Cullin – M.Michielsen | Open | 14 | -10.9 | -0.78 | -1.29 |
| Round 7 | G.Shen | F.Kolesnik – E.Wold | Closed | 14 | +3.5 | +0.25 | +2.21 |
| Round 8 | G.Shen | D.Rosenberg – M.Rosenberg | Open | 14 | -0.3 | -0.02 | +0.29 |
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 |
|---|---|---|---|---|---|---|---|
| +10.4 | Round 7 | SIMSON | 3 | 5♣ | ♦6 | +2 | +17 |
| +10.2 | Round 1 | ZIMMERMANN | 5 | 4♥ | ♠8 | = | +11 |
| +9.8 | Round 4 | LEBOWITZ | 28 | 3NT | ♣T | +1 | +11 |
| +7.7 | Round 5 | SAXENA | 1 | 4♥ | ♠2 | -1 | +10 |
| +7.1 | Round 4 | LEBOWITZ | 16 | 4♠ | ♥K | = | +7 |
| +6.9 | Round 4 | LEBOWITZ | 22 | 6♠ | ♥5 | = | +0 |
| +6.0 | Round 8 | ROSENBERG | 25 | 3NT | ♦4 | -1 | +6 |
| +4.3 | Round 5 | SAXENA | 14 | 3♥ | ♦5 | = | +6 |
| +3.6 | Round 3 | PKB INTERNATIONAL | 12 | 2♥ | ♠A | = | +6 |
| +3.6 | Round 7 | SIMSON | 6 | 2♠ | ♦3 | -2 | +3 |
| +3.1 | Round 7 | SIMSON | 4 | 2♠ | ♥2 | +1 | +7 |
| +2.9 | Round 3 | PKB INTERNATIONAL | 3 | 2NT | ♠J | = | +0 |
| +2.7 | Round 1 | ZIMMERMANN | 6 | 4♠x | ♥6 | -2 | +13 |
| +2.6 | Round 8 | ROSENBERG | 24 | 3♦ | ♣A | = | +0 |
| +2.5 | Round 1 | ZIMMERMANN | 11 | 3♥ | ♠4 | = | -7 |
| +2.5 | Round 5 | SAXENA | 7 | 3NT | ♠7 | = | -13 |
| +2.4 | Round 7 | SIMSON | 10 | 2♣ | ♠8 | +1 | +0 |
| +2.4 | Round 8 | ROSENBERG | 15 | 3♣ | ♥Q | -2 | +0 |
| +2.1 | Round 8 | ROSENBERG | 26 | 4♥ | ♣5 | = | +0 |
| +1.9 | Round 8 | ROSENBERG | 19 | 3NT | ♥9 | = | -11 |
| +1.7 | Round 3 | PKB INTERNATIONAL | 13 | 4♥ | ♣4 | -1 | +12 |
| +1.6 | Round 1 | ZIMMERMANN | 3 | 3♥ | ♦Q | +1 | -6 |
| +1.6 | Round 7 | SIMSON | 13 | 2♥ | ♣2 | -1 | +12 |
| +1.5 | Round 8 | ROSENBERG | 21 | 7♦x | ♥K | -3 | +5 |
| +1.4 | Round 4 | LEBOWITZ | 26 | 6NT | ♣7 | = | +0 |
| +1.3 | Round 7 | SIMSON | 12 | 3♦ | ♠Q | -1 | -2 |
| +1.3 | Round 8 | ROSENBERG | 17 | 6♣ | ♥5 | = | +0 |
| +1.1 | Round 1 | ZIMMERMANN | 7 | 4♠ | ♥K | = | -13 |
| +1.1 | Round 3 | PKB INTERNATIONAL | 14 | 3♥ | ♥5 | = | +0 |
| +1.1 | Round 8 | ROSENBERG | 27 | 3NT | ♠4 | +1 | +11 |
| +1.0 | Round 7 | SIMSON | 8 | 3♠ | ♣J | -1 | +4 |
| +0.9 | Round 3 | PKB INTERNATIONAL | 5 | 4♦ | ♠9 | = | +1 |
| +0.9 | Round 5 | SAXENA | 11 | 4♥ | ♥2 | +1 | +0 |
| +0.9 | Round 8 | ROSENBERG | 16 | 3NT | ♣5 | = | +0 |
| +0.7 | Round 3 | PKB INTERNATIONAL | 4 | 3NT | ♣4 | = | +0 |
| +0.6 | Round 5 | SAXENA | 12 | 4♣ | ♦A | +1 | -4 |
| +0.2 | Round 5 | SAXENA | 3 | 3NT | ♦2 | +1 | +1 |
| +0.2 | Round 5 | SAXENA | 4 | 4♥ | ♠6 | +1 | +0 |
| +0.1 | Round 5 | SAXENA | 2 | 4♠ | ♦3 | +1 | +11 |
| -0.1 | Round 1 | ZIMMERMANN | 14 | 5♦ | ♥T | = | +11 |
| -0.1 | Round 7 | SIMSON | 14 | 3NT | ♦Q | = | +0 |
| -0.2 | Round 3 | PKB INTERNATIONAL | 6 | 4♠ | ♦3 | -1 | +0 |
| -0.2 | Round 4 | LEBOWITZ | 17 | 3NT | ♥Q | +1 | +0 |
| -0.3 | Round 3 | PKB INTERNATIONAL | 7 | 4♠ | ♦6 | = | -13 |
| -0.3 | Round 4 | LEBOWITZ | 25 | 3NT | ♠5 | +1 | -1 |
| -0.4 | Round 1 | ZIMMERMANN | 10 | 1NT | ♣5 | = | -1 |
| -0.5 | Round 1 | ZIMMERMANN | 1 | 4♥ | ♦Q | = | +0 |
| -0.6 | Round 8 | ROSENBERG | 28 | 4♣ | ♥A | -1 | -2 |
| -1.2 | Round 4 | LEBOWITZ | 24 | 2♦ | ♥6 | -1 | -8 |
| -1.4 | Round 3 | PKB INTERNATIONAL | 1 | 4♥ | ♠6 | = | +0 |
| -1.6 | Round 4 | LEBOWITZ | 27 | 2NT | ♦9 | -3 | +0 |
| -1.7 | Round 1 | ZIMMERMANN | 9 | 1NT | ♦A | -2 | +1 |
| -1.7 | Round 7 | SIMSON | 7 | 3NT | ♥3 | +2 | -1 |
| -1.8 | Round 7 | SIMSON | 2 | 3♠ | ♦Q | = | +6 |
| -2.0 | Round 7 | SIMSON | 11 | 1NT | ♠6 | -1 | +2 |
| -2.2 | Round 7 | SIMSON | 9 | 3♣ | ♥6 | = | -7 |
| -2.4 | Round 7 | SIMSON | 1 | 4♥ | ♣2 | = | +0 |
| -2.6 | Round 1 | ZIMMERMANN | 2 | 4♥ | ♦2 | = | +0 |
| -2.6 | Round 5 | SAXENA | 10 | 3♥ | ♣7 | -1 | -11 |
| -2.6 | Round 8 | ROSENBERG | 23 | 3♦ | ♣K | = | +0 |
| -2.7 | Round 3 | PKB INTERNATIONAL | 9 | 4♣ | ♦Q | -2 | -5 |
| -2.7 | Round 8 | ROSENBERG | 18 | 4♦ | ♥5 | = | -1 |
| -3.4 | Round 3 | PKB INTERNATIONAL | 11 | 4♠ | ♥A | +2 | -11 |
| -3.5 | Round 3 | PKB INTERNATIONAL | 8 | 4♦ | ♠K | +1 | -6 |
| -3.7 | Round 5 | SAXENA | 6 | 3NT | ♠K | +2 | -10 |
| -3.7 | Round 5 | SAXENA | 9 | 4♥ | ♦6 | = | -8 |
| -4.3 | Round 5 | SAXENA | 8 | 4♥ | ♦K | +1 | +11 |
| -4.7 | Round 8 | ROSENBERG | 22 | 2♥ | ♣6 | -2 | -5 |
| -4.9 | Round 3 | PKB INTERNATIONAL | 10 | 2♠ | ♠6 | +2 | -10 |
| -5.0 | Round 1 | ZIMMERMANN | 8 | 1NTx | ♣Q | +1 | -9 |
| -5.2 | Round 5 | SAXENA | 13 | 2♠ | ♥A | -1 | -11 |
| -5.3 | Round 4 | LEBOWITZ | 19 | 3NT | ♥3 | -6 | +0 |
| -5.6 | Round 1 | ZIMMERMANN | 12 | 4♥x | ♦A | -1 | -8 |
| -6.4 | Round 4 | LEBOWITZ | 21 | 3NT | ♦3 | = | +0 |
| -7.5 | Round 4 | LEBOWITZ | 20 | 6♣x | ♥A | -2 | -12 |
| -7.5 | Round 4 | LEBOWITZ | 23 | 3♥ | ♠6 | +1 | -8 |
| -7.9 | Round 5 | SAXENA | 5 | 6♥ | ♠3 | = | +0 |
| -8.2 | Round 4 | LEBOWITZ | 18 | 4♥x | ♦A | -3 | -9 |
| -8.9 | Round 1 | ZIMMERMANN | 13 | 4♥ | ♠5 | = | -10 |
| -8.9 | Round 4 | LEBOWITZ | 15 | 3NT | ♣4 | -1 | -17 |
| -9.1 | Round 1 | ZIMMERMANN | 4 | 3NT | ♠6 | -1 | -12 |
| -9.5 | Round 8 | ROSENBERG | 20 | 4♠ | ♣Q | = | +1 |
| -9.7 | Round 7 | SIMSON | 5 | 2♥ | ♦J | +3 | -10 |
| -12.8 | Round 3 | PKB INTERNATIONAL | 2 | 6♠x | ♥6 | -1 | -20 |