CHEN Yiyi · CHINA ORANGE
vs par split: bidding +0.08 · play -0.22
Strength of schedule: opponents averaged -0.14/bd (an easy draw) → opponent-adjusted -0.18/bd
Card play — on target: opening leads 76.9% #57 of 86 · declarer play 81.8% #11 of 86 · defence 92.6% #19 of 86
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (5) | 62.5% (8) |
| Declarer play | 80.0% (5) | 83.3% (6) |
| Defence | 81.8% (11) | 100.0% (16) |
Opening leads by suit led: ♠ 100.0% (4) · ♥ 80.0% (5) · ♦ 100.0% (2) · ♣ 0.0% (2)
vs par by strain: NT -0.56 (23) · a suit +0.22 (27)
vs par by level: part-score -0.14 (22) · game -0.08 (26) · slam -1.00 (2)
By role: declaring +0.04/bd (-3.65 vs par · 23) · defending -0.10/bd (+2.85 vs par · 27)
By vulnerability: vulnerable -0.62/bd (+0.21 vs par · 24) · not vulnerable +0.50/bd (-0.46 vs par · 26)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 2 | B.Zhao | A.Gladiator – E.Weber | Open | 10 | +0.1 | +0.01 | -1.00 |
| Round 3 | B.Zhao | Y.Lu – Y.Liu | Closed | 10 | +2.0 | +0.20 | +0.50 |
| Round 5 | B.Zhao | S.Holmoy – G.Vist | Closed | 10 | -0.9 | -0.09 | -1.70 |
| Round 7 | B.Zhao | A.Gulevich – E.Khonicheva | Closed | 10 | -8.3 | -0.83 | -0.80 |
| Round 8 | B.Zhao | K.Mccallum – L.Baker | Open | 10 | +5.3 | +0.53 | +2.30 |
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 |
|---|---|---|---|---|---|---|---|
| +11.7 | Round 2 | GERMAN LADIES | 16 | 3NT | ♥6 | -1 | +13 |
| +10.1 | Round 3 | CHINA RED | 30 | 4♠ | ♦6 | = | +11 |
| +7.4 | Round 7 | CONSTANCE | 10 | 3NT | ♥3 | -3 | +10 |
| +6.3 | Round 2 | GERMAN LADIES | 11 | 5♦ | ♣4 | = | +0 |
| +6.2 | Round 5 | BROGELAND | 20 | 3NT | ♥8 | = | +0 |
| +6.0 | Round 8 | BAKER | 15 | 2NT | ♦9 | -3 | +9 |
| +5.5 | Round 8 | BAKER | 11 | 3NT | ♣6 | = | -1 |
| +5.1 | Round 5 | BROGELAND | 16 | 2NT | ♥2 | +1 | +6 |
| +3.9 | Round 7 | CONSTANCE | 4 | 1NT | ♠K | = | +5 |
| +3.7 | Round 2 | GERMAN LADIES | 19 | 5♣ | ♦A | -2 | +2 |
| +2.5 | Round 8 | BAKER | 20 | 3♥ | ♠A | = | +7 |
| +2.2 | Round 5 | BROGELAND | 19 | 2♠ | ♥5 | -2 | -1 |
| +2.1 | Round 3 | CHINA RED | 26 | 1NT | ♠6 | -1 | +0 |
| +1.7 | Round 3 | CHINA RED | 23 | 1NT | ♥K | = | +1 |
| +1.7 | Round 8 | BAKER | 12 | 2♠ | ♣6 | +1 | +0 |
| +1.5 | Round 2 | GERMAN LADIES | 17 | 3NT | ♦3 | +2 | -11 |
| +1.4 | Round 8 | BAKER | 18 | 3NT | ♠3 | = | +0 |
| +1.3 | Round 3 | CHINA RED | 28 | 4♦ | ♥10 | -1 | +5 |
| +1.2 | Round 5 | BROGELAND | 11 | 4♥ | ♣10 | +1 | +0 |
| +0.6 | Round 7 | CONSTANCE | 5 | 4♠ | ♠10 | +2 | +13 |
| +0.6 | Round 8 | BAKER | 16 | 3♠ | ♣2 | +1 | +6 |
| +0.3 | Round 5 | BROGELAND | 15 | 1NT | ♠4 | +1 | -7 |
| +0.1 | Round 2 | GERMAN LADIES | 13 | 2♣ | ♦6 | +2 | +0 |
| +0.1 | Round 2 | GERMAN LADIES | 15 | 3NT | ♠K | = | +0 |
| +0.1 | Round 3 | CHINA RED | 22 | 1NTx | ♣7 | -2 | +4 |
| -0.2 | Round 3 | CHINA RED | 29 | 3NT | ♠J | +1 | +0 |
| -0.3 | Round 5 | BROGELAND | 17 | 3NT | ♣4 | = | -2 |
| -0.3 | Round 8 | BAKER | 14 | 1♦ | ♠K | -1 | -2 |
| -0.5 | Round 7 | CONSTANCE | 3 | 4♥ | ♦J | +1 | -1 |
| -0.7 | Round 3 | CHINA RED | 27 | 1♠ | ♥A | +1 | +0 |
| -0.9 | Round 2 | GERMAN LADIES | 20 | 1NT | ♥7 | +2 | -1 |
| -0.9 | Round 8 | BAKER | 17 | 3NT | ♥K | = | +1 |
| -1.6 | Round 5 | BROGELAND | 18 | 3NT | ♦3 | -2 | -6 |
| -2.3 | Round 7 | CONSTANCE | 7 | 3NT | ♠3 | -1 | -12 |
| -2.4 | Round 5 | BROGELAND | 14 | 2♦ | ♥4 | = | -5 |
| -2.4 | Round 7 | CONSTANCE | 1 | 4♥ | ♦2 | +1 | +0 |
| -2.4 | Round 7 | CONSTANCE | 9 | 3♣ | ♠K | +1 | -10 |
| -2.8 | Round 7 | CONSTANCE | 6 | 4♥ | ♣3 | +1 | +0 |
| -3.0 | Round 3 | CHINA RED | 21 | 2♠ | ♣J | = | +1 |
| -3.2 | Round 5 | BROGELAND | 12 | 1♠ | ♥10 | +2 | -1 |
| -3.9 | Round 3 | CHINA RED | 24 | 5♣x | ♠A | -1 | -5 |
| -3.9 | Round 7 | CONSTANCE | 2 | 3NT | ♦3 | +1 | +0 |
| -4.3 | Round 2 | GERMAN LADIES | 18 | 6♦ | ♦4 | +1 | +11 |
| -5.0 | Round 8 | BAKER | 19 | 2NT | ♣4 | +2 | -10 |
| -5.5 | Round 3 | CHINA RED | 25 | 3NT | ♥8 | -1 | -12 |
| -5.9 | Round 7 | CONSTANCE | 8 | 6♠ | ♦K | -1 | -13 |
| -6.2 | Round 8 | BAKER | 13 | 5♦ | ♦5 | = | +13 |
| -8.3 | Round 2 | GERMAN LADIES | 12 | 3♠ | ♥3 | +1 | -10 |
| -8.4 | Round 5 | BROGELAND | 13 | 4♠ | ♣K | +1 | -1 |
| -9.8 | Round 2 | GERMAN LADIES | 14 | 5♣ | ♠K | -1 | -14 |