CHEN Yunlong · CHINA OPEN 2
vs par split: bidding +0.68 · play -1.92
Strength of schedule: opponents averaged +0.13/bd (a tough draw) → opponent-adjusted -0.34/bd
Card play — on target: opening leads 86.7% #60 of 476 · declarer play 41.7% #477 of 478 · defence 66.7% #476 of 478
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (4) | 81.8% (11) |
| Declarer play | 20.0% (5) | 57.1% (7) |
| Defence | 66.7% (9) | 66.7% (15) |
Opening leads by suit led: ♠ 75.0% (4) · ♥ 100.0% (4) · ♦ 100.0% (3) · ♣ 75.0% (4)
vs par by strain: NT -0.25 (20) · a suit -1.90 (30)
vs par by level: part-score +0.13 (23) · game -2.25 (24) · slam -3.67 (3)
By role: declaring -1.03/bd (-3.38 vs par · 26) · defending +0.13/bd (+1.08 vs par · 24)
By vulnerability: vulnerable -0.53/bd (-1.84 vs par · 25) · not vulnerable -0.41/bd (-0.64 vs par · 25)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 3 | J.Zhao | R.Pachtman – P.Zatorski | Open | 10 | +3.2 | +0.32 | +0.00 |
| Round 4 | J.Zhao | A.Gromov – A.Dubinin | Closed | 10 | -2.7 | -0.27 | -1.00 |
| Round 5 | J.Zhao | S.Tommasini – J.Campos | Open | 10 | -12.6 | -1.26 | -2.70 |
| Round 8 | J.Zhao | Y.Sun – Y.Kuang | Closed | 10 | +1.2 | +0.12 | -2.00 |
| Round 9 | J.Zhao | E.Lindqvist – B.Brogeland | Closed | 10 | -12.6 | -1.26 | -0.50 |
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 |
|---|---|---|---|---|---|---|---|
| +5.3 | Round 9 | DIAMOND | 13 | 3♣x | ♠A | -3 | +4 |
| +4.4 | Round 8 | ORG | 1 | 3NT | ♠8 | +1 | +7 |
| +4.2 | Round 4 | ERA | 14 | 3NT | ♥J | +2 | +2 |
| +4.1 | Round 9 | DIAMOND | 11 | 2NT | ♣Q | +1 | +7 |
| +4.0 | Round 4 | ERA | 19 | 4♥ | ♠3 | -1 | +5 |
| +3.8 | Round 3 | MITTELMAN | 2 | 4♠ | ♣A | -1 | +9 |
| +3.7 | Round 8 | ORG | 4 | 3♥ | ♥A | +1 | +1 |
| +3.5 | Round 5 | PAIVA | 28 | 2♠ | ♥K | = | +5 |
| +3.5 | Round 9 | DIAMOND | 18 | 3NT | ♥Q | -1 | +6 |
| +3.1 | Round 4 | ERA | 20 | 1NT | ♣6 | = | +0 |
| +2.9 | Round 5 | PAIVA | 24 | 6♥ | ♠9 | = | +0 |
| +2.4 | Round 3 | MITTELMAN | 6 | 3♣ | ♥6 | = | +0 |
| +2.2 | Round 3 | MITTELMAN | 3 | 2NT | ♥A | -2 | -1 |
| +2.1 | Round 4 | ERA | 11 | 3♠ | ♦A | +1 | +6 |
| +1.2 | Round 8 | ORG | 2 | 1NT | ♥6 | +2 | -6 |
| +1.2 | Round 8 | ORG | 8 | 2♠ | ♣3 | +1 | +0 |
| +1.0 | Round 4 | ERA | 18 | 2♥ | ♣6 | +1 | +1 |
| +0.7 | Round 8 | ORG | 9 | 2♠ | ♣6 | +1 | +0 |
| +0.2 | Round 9 | DIAMOND | 19 | 3♦ | ♠2 | +1 | -1 |
| +0.1 | Round 3 | MITTELMAN | 7 | 3NT | ♣8 | +1 | +0 |
| +0.1 | Round 3 | MITTELMAN | 10 | 4♥ | ♣Q | -2 | -8 |
| -0.0 | Round 3 | MITTELMAN | 4 | 2♦ | ♥A | -1 | +0 |
| -0.0 | Round 3 | MITTELMAN | 9 | 3NT | ♦4 | = | -1 |
| -0.0 | Round 5 | PAIVA | 26 | 2♠ | ♦J | = | +1 |
| +0.0 | Round 5 | PAIVA | 30 | 4♠ | ♣8 | = | +0 |
| -0.4 | Round 4 | ERA | 16 | 1NT | ♠J | -1 | +0 |
| -0.4 | Round 5 | PAIVA | 22 | 2♠ | ♥2 | = | +0 |
| -0.5 | Round 8 | ORG | 6 | 3NT | ♠A | = | +0 |
| -0.6 | Round 5 | PAIVA | 25 | 3NT | ♥3 | +2 | -1 |
| -0.8 | Round 5 | PAIVA | 29 | 4♠ | ♥K | +1 | +0 |
| -0.9 | Round 3 | MITTELMAN | 8 | 3♣ | ♣6 | -1 | +2 |
| -0.9 | Round 4 | ERA | 15 | 5♠x | ♣5 | -1 | -5 |
| -0.9 | Round 8 | ORG | 5 | 3NT | ♥K | = | +2 |
| -1.4 | Round 9 | DIAMOND | 12 | 6NT | ♥7 | = | +0 |
| -1.6 | Round 8 | ORG | 3 | 3NT | ♦10 | -1 | -12 |
| -1.6 | Round 8 | ORG | 10 | 3NT | ♠9 | -1 | +0 |
| -1.9 | Round 3 | MITTELMAN | 1 | 1NT | ♥9 | +1 | +0 |
| -2.1 | Round 9 | DIAMOND | 14 | 4♠ | ♦2 | -1 | -5 |
| -2.1 | Round 9 | DIAMOND | 20 | 3NT | ♦4 | +4 | +12 |
| -2.2 | Round 4 | ERA | 12 | 4♣ | ♦9 | -2 | +0 |
| -2.6 | Round 3 | MITTELMAN | 5 | 2♥ | ♦K | +1 | -1 |
| -3.6 | Round 5 | PAIVA | 27 | 2♦ | ♦J | -3 | -7 |
| -4.2 | Round 9 | DIAMOND | 15 | 5♥x | ♠A | -1 | -6 |
| -4.6 | Round 5 | PAIVA | 21 | 4♠ | ♣7 | +1 | -11 |
| -5.1 | Round 4 | ERA | 13 | 1NT | ♥A | -2 | -8 |
| -5.4 | Round 8 | ORG | 7 | 3NT | ♥10 | -1 | -12 |
| -7.6 | Round 9 | DIAMOND | 16 | 5♣x | ♦K | -2 | -11 |
| -8.3 | Round 9 | DIAMOND | 17 | 6♥ | ♠3 | -1 | -11 |
| -8.5 | Round 4 | ERA | 17 | 4♥ | ♦K | -2 | -11 |
| -9.0 | Round 5 | PAIVA | 23 | 4♠ | ♥A | -5 | -14 |