CHEN Dawei · YEH MIX
vs par split: bidding +1.04 · play +1.43
Strength of schedule: opponents averaged -0.05/bd (an average draw) → opponent-adjusted +1.59/bd
Card play — on target: opening leads 69.2% #119 of 187 · declarer play 83.3% #44 of 187 · defence 81.8% #146 of 187
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 25.0% (4) | 88.9% (9) |
| Declarer play | 100.0% (4) | 78.6% (14) |
| Defence | 100.0% (5) | 76.5% (17) |
Opening leads by suit led: ♠ 50.0% (2) · ♥ 66.7% (3) · ♦ 80.0% (5) · ♣ 66.7% (3)
vs par by strain: NT +3.73 (11) · a suit +2.10 (38)
vs par by level: part-score +2.46 (11) · game +2.47 (38)
By role: declaring +1.07/bd (+0.07 vs par · 27) · defending +2.32/bd (+5.41 vs par · 22)
By vulnerability: vulnerable +2.32/bd (+2.32 vs par · 25) · not vulnerable +0.92/bd (+2.62 vs par · 24)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | M.Sun | Z.Li – W.Gu | Open | 7 | +25.7 | +3.67 | +5.00 |
| Round 2 | M.Sun | V.Isporski – M.Tokcan | Open | 7 | +8.4 | +1.20 | +3.00 |
| Round 3 | M.Sun | P.Zimmermann – B.Cronier | Open | 7 | +12.8 | +1.83 | +5.29 |
| Round 4 | M.Sun | W.Gawel – G.Brewiak | Open | 7 | -0.4 | -0.06 | -1.86 |
| Round 5 | M.Sun | W.He – H.Yang | Open | 7 | +15.2 | +2.17 | -0.57 |
| Round 6 | M.Sun | S.Garner – C.Henner | Open | 7 | +8.2 | +1.17 | +3.86 |
| Round 8 | M.Sun | J.Dai – Y.Zhang | Open | 7 | +10.1 | +1.44 | +2.57 |
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 |
|---|---|---|---|---|---|---|---|
| +12.1 | Round 1 | HUBEI QIAOXIE | 3 | 5♦x | ♣4 | -4 | +14 |
| +10.9 | Round 6 | CHIME | 13 | 4♥x | ♠7 | -3 | +12 |
| +10.6 | Round 8 | GEELY AUTOMOBILE | 26 | 4♠x | ♥10 | -1 | +13 |
| +10.0 | Round 3 | PZIM | 19 | 3NT | ♥Q | -2 | +11 |
| +8.7 | Round 1 | HUBEI QIAOXIE | 7 | 4♠ | ♦K | = | +10 |
| +8.3 | Round 8 | GEELY AUTOMOBILE | 28 | 4♥ | ♠6 | +1 | +7 |
| +8.1 | Round 5 | JILINSHENGQIAOPAIXIEHUI | 6 | 4♥ | ♥2 | = | +8 |
| +7.0 | Round 1 | HUBEI QIAOXIE | 1 | 5♦ | ♣4 | -1 | +10 |
| +4.5 | Round 3 | PZIM | 17 | 4♠ | ♦5 | -2 | +6 |
| +4.5 | Round 4 | ROSSARD | 28 | 2♥ | ♣5 | = | +5 |
| +4.5 | Round 5 | JILINSHENGQIAOPAIXIEHUI | 7 | 4♠ | ♦K | +1 | -13 |
| +4.2 | Round 5 | JILINSHENGQIAOPAIXIEHUI | 2 | 3♣ | ♦4 | -1 | +6 |
| +4.0 | Round 6 | CHIME | 8 | 4♠ | ♥4 | -2 | +6 |
| +3.6 | Round 5 | JILINSHENGQIAOPAIXIEHUI | 5 | 1NT | ♠8 | = | +5 |
| +3.2 | Round 6 | CHIME | 9 | 3NT | ♥2 | = | +14 |
| +2.9 | Round 3 | PZIM | 18 | 3NT | ♣10 | -1 | +13 |
| +2.7 | Round 2 | VALIO | 8 | 4♠x | ♦A | -2 | +5 |
| +2.6 | Round 2 | VALIO | 12 | 4♥ | ♥6 | +1 | +1 |
| +2.6 | Round 6 | CHIME | 11 | 4♣ | ♦3 | = | +8 |
| +2.1 | Round 3 | PZIM | 21 | 4♥ | ♣2 | +1 | +0 |
| +2.0 | Round 2 | VALIO | 10 | 4♠ | ♣2 | +1 | +0 |
| +1.9 | Round 4 | ROSSARD | 26 | 5♣ | ♠5 | +1 | -5 |
| +1.8 | Round 8 | GEELY AUTOMOBILE | 27 | 4♠ | ♥4 | +1 | +1 |
| +1.7 | Round 2 | VALIO | 9 | 1NT | ♣5 | -2 | -2 |
| +1.6 | Round 5 | JILINSHENGQIAOPAIXIEHUI | 4 | 4♠ | ♠2 | +1 | +0 |
| +1.4 | Round 2 | VALIO | 11 | 5♦x | ♥A | -2 | +4 |
| +1.1 | Round 6 | CHIME | 10 | 4♠ | ♣5 | = | +0 |
| +0.6 | Round 1 | HUBEI QIAOXIE | 4 | 1NT | ♦2 | = | -1 |
| +0.4 | Round 1 | HUBEI QIAOXIE | 2 | 3NT | ♦K | +1 | +0 |
| +0.4 | Round 5 | JILINSHENGQIAOPAIXIEHUI | 3 | 2♠ | ♠5 | +1 | +0 |
| +0.3 | Round 4 | ROSSARD | 24 | 2♦ | ♣2 | -1 | -2 |
| -0.4 | Round 8 | GEELY AUTOMOBILE | 23 | 3NT | ♠2 | +2 | -2 |
| -0.6 | Round 2 | VALIO | 14 | 4♠ | ♥Q | +3 | +14 |
| -0.8 | Round 3 | PZIM | 20 | 3NT | ♦9 | +1 | +1 |
| -0.9 | Round 4 | ROSSARD | 27 | 4♥ | ♣K | -1 | -4 |
| -1.1 | Round 1 | HUBEI QIAOXIE | 6 | 4♥ | ♣K | +1 | +0 |
| -1.2 | Round 4 | ROSSARD | 23 | 3NT | ♠10 | = | +0 |
| -1.3 | Round 6 | CHIME | 14 | 4♥ | ♥A | -2 | +1 |
| -1.4 | Round 2 | VALIO | 13 | 4♠ | ♦8 | = | -1 |
| -1.6 | Round 4 | ROSSARD | 22 | 4♠ | ♦A | +2 | -1 |
| -2.0 | Round 1 | HUBEI QIAOXIE | 5 | 1NT | ♠3 | -1 | +2 |
| -2.3 | Round 3 | PZIM | 16 | 3♦ | ♠4 | +1 | +7 |
| -2.4 | Round 8 | GEELY AUTOMOBILE | 22 | 4♥ | ♣Q | +2 | -1 |
| -3.0 | Round 8 | GEELY AUTOMOBILE | 24 | 4♥ | ♠Q | = | +0 |
| -3.4 | Round 4 | ROSSARD | 25 | 5♦ | ♠K | -1 | -6 |
| -3.6 | Round 3 | PZIM | 15 | 2♠ | ♦Q | +2 | -1 |
| -4.8 | Round 8 | GEELY AUTOMOBILE | 25 | 4♥ | ♠2 | +1 | +0 |
| -7.2 | Round 5 | JILINSHENGQIAOPAIXIEHUI | 1 | 4♠ | ♣A | -1 | -10 |
| -12.3 | Round 6 | CHIME | 12 | 4♥x | ♦A | -3 | -14 |