CHEN Yiyi · CHINA LADIES TEAM
vs par split: bidding -0.38 · play -0.44
Strength of schedule: opponents averaged -0.36/bd (an easy draw) → opponent-adjusted -0.73/bd
Card play — on target: opening leads 84.0% #55 of 239 · declarer play 73.9% #135 of 239 · defence 80.5% #204 of 240
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 83.3% (6) | 84.2% (19) |
| Declarer play | 66.7% (9) | 78.6% (14) |
| Defence | 84.6% (13) | 78.6% (28) |
Opening leads by suit led: ♠ 100.0% (6) · ♥ 60.0% (5) · ♦ 83.3% (6) · ♣ 87.5% (8)
vs par by strain: NT -0.12 (26) · a suit -1.15 (54)
vs par by level: part-score -1.06 (33) · game -1.39 (39) · slam +3.00 (8)
By role: declaring -0.37/bd (-2.69 vs par · 39) · defending -0.37/bd (+0.98 vs par · 41)
By vulnerability: vulnerable +0.04/bd (-0.05 vs par · 41) · not vulnerable -0.81/bd (-1.61 vs par · 39)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 2 | B.Zhao | M.Ionita – M.Stegaroiu | Open | 10 | -24.3 | -2.43 | -3.20 |
| Round 3 | B.Zhao | F.Murgia – M.Baldi | Open | 10 | -10.5 | -1.05 | -1.40 |
| Round 7 | B.Zhao | M.Courrias – S.Barne | Open | 10 | +2.4 | +0.24 | +1.10 |
| Round 8 | B.Zhao | M.Mohan – B.Amin | Open | 10 | -11.9 | -1.19 | -0.50 |
| Round 10 | B.Zhao | D.Malakova – J.Harris | Closed | 10 | +38.7 | +3.87 | +4.00 |
| Round 12 | B.Zhao | B.Chmurski – I.Chalupec | Closed | 10 | +10.5 | +1.05 | -2.40 |
| Round 13 | B.Zhao | K.Araszkiewicz – M.Puczynski | Open | 10 | -1.3 | -0.13 | +0.80 |
| Round 15 | B.Zhao | J.Neimanis – U.Jansons | Closed | 10 | -33.4 | -3.34 | -4.90 |
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 10 | HARRIS | 7 | 2♥x | ♥Q | +1 | +13 |
| +10.3 | Round 12 | BRIDGE24PL B | 24 | 6♥ | ♥6 | -1 | +11 |
| +10.2 | Round 7 | BRUNET | 7 | 6♥ | ♣6 | -2 | +17 |
| +9.3 | Round 10 | HARRIS | 2 | 6♥ | ♠K | -1 | +9 |
| +8.4 | Round 7 | BRUNET | 3 | 4♠ | ♣5 | -1 | +6 |
| +7.3 | Round 10 | HARRIS | 4 | 2♣ | ♦7 | = | +5 |
| +7.1 | Round 8 | DURONTO RAJSHAHI | 12 | 3NT | ♠J | -2 | +11 |
| +6.9 | Round 2 | DRACULA | 18 | 3♠ | ♥2 | -1 | +6 |
| +6.8 | Round 7 | BRUNET | 10 | 4♥ | ♣6 | +3 | +17 |
| +6.7 | Round 10 | HARRIS | 3 | 3NTx | ♥3 | = | +3 |
| +5.5 | Round 10 | HARRIS | 8 | 3NT | ♣4 | = | +7 |
| +5.2 | Round 13 | CONNECTOR | 7 | 1NT | ♦2 | -1 | +5 |
| +3.7 | Round 10 | HARRIS | 10 | 2♠ | ♥3 | = | -1 |
| +3.5 | Round 12 | BRIDGE24PL B | 25 | 2♣ | ♦3 | +1 | +0 |
| +2.7 | Round 3 | CUNEO | 29 | 3NT | ♠6 | -1 | +6 |
| +2.6 | Round 13 | CONNECTOR | 1 | 3♥ | ♦2 | = | +1 |
| +2.4 | Round 15 | LATVIA | 26 | 3NT | ♠9 | -1 | +6 |
| +2.3 | Round 13 | CONNECTOR | 3 | 2NT | ♠2 | = | +0 |
| +2.1 | Round 7 | BRUNET | 6 | 3♥ | ♦A | -1 | +2 |
| +2.1 | Round 13 | CONNECTOR | 9 | 2♠ | ♠4 | +2 | +6 |
| +2.0 | Round 3 | CUNEO | 26 | 2♥ | ♦3 | +3 | -9 |
| +2.0 | Round 12 | BRIDGE24PL B | 27 | 4♥ | ♦9 | -1 | -3 |
| +1.9 | Round 12 | BRIDGE24PL B | 21 | 4♥ | ♦K | +1 | +0 |
| +1.9 | Round 12 | BRIDGE24PL B | 22 | 5♣ | ♥A | = | +0 |
| +1.8 | Round 2 | DRACULA | 14 | 4♣ | ♦2 | = | +1 |
| +1.6 | Round 3 | CUNEO | 23 | 6♠ | ♦7 | +1 | +13 |
| +1.4 | Round 10 | HARRIS | 5 | 2NT | ♥6 | -1 | +5 |
| +1.2 | Round 8 | DURONTO RAJSHAHI | 14 | 3NT | ♣5 | = | +0 |
| +0.9 | Round 13 | CONNECTOR | 8 | 2♦ | ♠4 | +2 | +7 |
| +0.8 | Round 12 | BRIDGE24PL B | 26 | 3NT | ♥10 | = | +1 |
| +0.7 | Round 13 | CONNECTOR | 4 | 4♥ | ♦2 | = | +1 |
| +0.6 | Round 3 | CUNEO | 27 | 3♠ | ♣A | -1 | -2 |
| +0.2 | Round 8 | DURONTO RAJSHAHI | 18 | 3NT | ♠3 | +1 | +0 |
| +0.1 | Round 2 | DRACULA | 15 | 3NT | ♠2 | -2 | +0 |
| -0.1 | Round 3 | CUNEO | 28 | 1♠ | ♣K | +2 | +0 |
| -0.1 | Round 13 | CONNECTOR | 10 | 4♥ | ♦2 | = | +0 |
| -0.2 | Round 7 | BRUNET | 8 | 3♠ | ♠5 | -1 | +2 |
| -0.2 | Round 15 | LATVIA | 24 | 4♥ | ♣4 | = | -11 |
| -0.3 | Round 8 | DURONTO RAJSHAHI | 16 | 4♠ | ♦A | = | +0 |
| -0.4 | Round 12 | BRIDGE24PL B | 23 | 6♦ | ♥8 | +1 | -13 |
| -0.4 | Round 15 | LATVIA | 29 | 1NT | ♠2 | = | -2 |
| -0.5 | Round 8 | DURONTO RAJSHAHI | 20 | 3NT | ♥2 | = | -2 |
| -0.6 | Round 7 | BRUNET | 1 | 3NT | ♥J | +2 | -11 |
| -0.9 | Round 2 | DRACULA | 12 | 2NT | ♥2 | +1 | -6 |
| -0.9 | Round 8 | DURONTO RAJSHAHI | 17 | 3NT | ♦3 | +2 | -1 |
| -1.2 | Round 7 | BRUNET | 2 | 3♣ | ♠Q | -1 | +0 |
| -1.4 | Round 3 | CUNEO | 25 | 3♥ | ♠A | -1 | +0 |
| -1.4 | Round 15 | LATVIA | 22 | 1NT | ♠8 | +2 | -1 |
| -1.7 | Round 3 | CUNEO | 24 | 3♦ | ♥7 | = | -5 |
| -1.9 | Round 2 | DRACULA | 20 | 4♠ | ♠2 | = | +0 |
| -2.0 | Round 10 | HARRIS | 1 | 3NT | ♠3 | +2 | -1 |
| -2.0 | Round 15 | LATVIA | 21 | 1♣ | ♥8 | -2 | +0 |
| -2.1 | Round 3 | CUNEO | 22 | 2♥ | ♥A | = | -6 |
| -2.1 | Round 10 | HARRIS | 9 | 4♠ | ♦10 | +1 | +0 |
| -2.1 | Round 12 | BRIDGE24PL B | 28 | 6♠ | ♥5 | +1 | -11 |
| -2.4 | Round 15 | LATVIA | 23 | 1NT | ♥4 | +1 | -6 |
| -2.5 | Round 2 | DRACULA | 16 | 2♥ | ♣2 | +1 | -6 |
| -2.6 | Round 13 | CONNECTOR | 6 | 3NT | ♥5 | +3 | +10 |
| -2.8 | Round 2 | DRACULA | 19 | 3NT | ♠2 | = | +0 |
| -3.2 | Round 15 | LATVIA | 27 | 4♥ | ♠9 | = | +0 |
| -3.5 | Round 10 | HARRIS | 6 | 3♥ | ♦J | -1 | +0 |
| -3.6 | Round 2 | DRACULA | 11 | 4♥ | ♣2 | -2 | -9 |
| -3.6 | Round 12 | BRIDGE24PL B | 29 | 3♠ | ♦6 | -1 | -9 |
| -3.6 | Round 13 | CONNECTOR | 2 | 4♥ | ♦8 | -1 | -11 |
| -3.8 | Round 3 | CUNEO | 21 | 2NT | ♠7 | -3 | -1 |
| -3.8 | Round 8 | DURONTO RAJSHAHI | 11 | 6♥ | ♦Q | = | +11 |
| -3.8 | Round 12 | BRIDGE24PL B | 30 | 5♠ | ♣A | = | +0 |
| -3.9 | Round 7 | BRUNET | 9 | 4♥ | ♣K | +1 | -4 |
| -4.3 | Round 8 | DURONTO RAJSHAHI | 19 | 4♠x | ♥A | -1 | -6 |
| -5.3 | Round 8 | DURONTO RAJSHAHI | 13 | 6♣ | ♠J | +1 | -13 |
| -5.3 | Round 8 | DURONTO RAJSHAHI | 15 | 4♥ | ♦5 | -2 | -5 |
| -6.8 | Round 15 | LATVIA | 25 | 3♠ | ♣A | = | -12 |
| -8.3 | Round 3 | CUNEO | 30 | 3NT | ♥7 | -1 | -10 |
| -8.6 | Round 15 | LATVIA | 28 | 4♠x | ♠4 | -1 | -11 |
| -8.8 | Round 13 | CONNECTOR | 5 | 3NT | ♣K | -1 | -11 |
| -8.9 | Round 2 | DRACULA | 17 | 3NT | ♠2 | -2 | -5 |
| -9.4 | Round 7 | BRUNET | 5 | 3♥ | ♣Q | = | -10 |
| -9.8 | Round 7 | BRUNET | 4 | 4♠ | ♦K | -2 | -8 |
| -10.8 | Round 15 | LATVIA | 30 | 3♠x | ♣A | = | -12 |
| -12.5 | Round 2 | DRACULA | 13 | 5♠x | ♣2 | +1 | -13 |