LU Dong · LU DONG
vs par split: bidding -0.08 · play -0.51
Strength of schedule: opponents averaged +0.17/bd (a tough draw) → opponent-adjusted -0.37/bd
Card play — on target: opening leads 80.0% #257 of 518 · declarer play 69.2% #365 of 517 · defence 83.9% #219 of 518
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (4) | 66.7% (6) |
| Declarer play | 50.0% (2) | 72.7% (11) |
| Defence | 69.2% (13) | 94.4% (18) |
Opening leads by suit led: ♠ 66.7% (3) · ♥ 100.0% (4) · ♦ 100.0% (1) · ♣ 50.0% (2)
vs par by strain: NT -0.61 (23) · a suit -0.24 (37)
vs par by level: part-score +0.24 (21) · game -0.79 (38) · slam +2.00 (1)
By role: declaring -0.97/bd (-3.21 vs par · 28) · defending -0.16/bd (+2.09 vs par · 32)
By vulnerability: vulnerable -0.06/bd (-0.97 vs par · 29) · not vulnerable -0.99/bd (+0.16 vs par · 31)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | Y.Lu | A.Stokka – Y.Wiseman | Closed | 10 | +8.3 | +0.83 | -0.50 |
| Round 2 | Y.Lu | M.Ozdil – S.Goldman | Closed | 10 | -2.2 | -0.22 | +1.40 |
| Round 4 | Y.Lu | Y.Zhang – Y.Liu | Closed | 10 | -27.9 | -2.79 | -1.40 |
| Round 6 | Y.Lu | P.Zimmermann – J.Zochowska | Open | 10 | -2.5 | -0.25 | -1.50 |
| Round 7 | Y.Lu | G.Hampson – L.Pearlman | Closed | 10 | -13.5 | -1.35 | +1.30 |
| Round 9 | Y.Lu | Y.Sobel – G.Donner | Open | 10 | +5.3 | +0.53 | -1.60 |
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 |
|---|---|---|---|---|---|---|---|
| +11.5 | Round 1 | PASKE | 2 | 4♠ | ♦3 | -1 | +12 |
| +8.5 | Round 2 | CUSHING | 12 | 4♠ | ♣J | -1 | +6 |
| +6.4 | Round 2 | CUSHING | 19 | 4♥x | ♦8 | -2 | +5 |
| +6.4 | Round 6 | ZIMMERMANN | 7 | 5♣ | ♠8 | = | -2 |
| +6.0 | Round 4 | CHINA HOBBY | 19 | 4♣ | +12 | ||
| +5.7 | Round 1 | PASKE | 10 | 3NT | ♠6 | -3 | +4 |
| +4.7 | Round 1 | PASKE | 9 | 3NT | ♣2 | +1 | +10 |
| +3.7 | Round 9 | DONNER | 19 | 3♥ | ♠3 | +1 | +6 |
| +2.9 | Round 7 | HAMPSON | 11 | 1NT | ♠4 | +3 | +2 |
| +2.4 | Round 7 | HAMPSON | 14 | 3NT | ♠3 | = | +0 |
| +2.3 | Round 6 | ZIMMERMANN | 4 | 3NT | ♠6 | +1 | +0 |
| +1.9 | Round 1 | PASKE | 6 | 3NT | ♥7 | +1 | +0 |
| +1.9 | Round 9 | DONNER | 14 | 4♠ | ♥6 | -1 | +2 |
| +1.7 | Round 1 | PASKE | 7 | 1♠ | ♥Q | = | -1 |
| +1.6 | Round 6 | ZIMMERMANN | 10 | 3♦ | ♦Q | = | +0 |
| +1.4 | Round 2 | CUSHING | 14 | 3NT | ♠4 | +3 | +14 |
| +1.4 | Round 9 | DONNER | 15 | 4♠ | ♦9 | = | +1 |
| +1.2 | Round 1 | PASKE | 1 | 1NT | ♥A | -1 | +4 |
| +0.9 | Round 6 | ZIMMERMANN | 3 | 4♥ | ♠3 | +3 | +10 |
| +0.8 | Round 6 | ZIMMERMANN | 5 | 5♥x | ♦K | -3 | -5 |
| +0.8 | Round 6 | ZIMMERMANN | 6 | 4♠ | ♦3 | = | -1 |
| +0.6 | Round 9 | DONNER | 16 | 4♠ | ♠5 | = | +1 |
| +0.6 | Round 9 | DONNER | 18 | 3NT | ♣A | +2 | +1 |
| +0.4 | Round 2 | CUSHING | 20 | 4♥ | ♠7 | +1 | +0 |
| +0.3 | Round 9 | DONNER | 17 | 4♥ | ♣4 | +1 | -10 |
| +0.1 | Round 9 | DONNER | 20 | 1NT | ♦9 | +1 | +1 |
| +0.0 | Round 4 | CHINA HOBBY | 12 | 2♠ | ♥K | +1 | +0 |
| -0.2 | Round 9 | DONNER | 13 | 3NT | ♠Q | -1 | -6 |
| -0.3 | Round 1 | PASKE | 4 | 4♠ | ♣4 | +1 | +0 |
| -0.3 | Round 2 | CUSHING | 18 | 2♦ | ♠3 | -1 | -1 |
| -0.4 | Round 6 | ZIMMERMANN | 8 | 2♠ | ♣3 | +2 | +6 |
| -0.5 | Round 9 | DONNER | 11 | 4♠ | ♦8 | = | -1 |
| -0.6 | Round 4 | CHINA HOBBY | 15 | 1NT | ♥8 | +1 | +0 |
| -0.7 | Round 2 | CUSHING | 13 | 4♠ | ♣5 | +1 | -13 |
| -0.7 | Round 2 | CUSHING | 16 | 3NT | ♥10 | +1 | +0 |
| -0.9 | Round 7 | HAMPSON | 15 | 3♠ | ♥Q | -1 | +3 |
| -1.2 | Round 7 | HAMPSON | 20 | 1NT | ♦7 | +1 | -10 |
| -1.6 | Round 4 | CHINA HOBBY | 16 | 2♦ | ♠8 | -1 | +11 |
| -1.6 | Round 7 | HAMPSON | 17 | 2♠ | ♥7 | +1 | +7 |
| -1.9 | Round 6 | ZIMMERMANN | 9 | 2♠ | ♥5 | = | -5 |
| -2.0 | Round 7 | HAMPSON | 16 | 3NT | ♥7 | +3 | -1 |
| -2.0 | Round 7 | HAMPSON | 19 | 3♣ | ♦K | -1 | +0 |
| -2.2 | Round 4 | CHINA HOBBY | 17 | 3NT | ♣2 | +3 | -2 |
| -2.2 | Round 7 | HAMPSON | 13 | 4NT | ♠10 | +1 | +13 |
| -2.5 | Round 2 | CUSHING | 11 | 4♦ | ♣9 | -1 | -6 |
| -2.6 | Round 7 | HAMPSON | 18 | 6♣ | ♦A | = | +2 |
| -2.6 | Round 9 | DONNER | 12 | 5♥ | ♠A | -1 | -11 |
| -3.1 | Round 4 | CHINA HOBBY | 14 | 2♥ | ♦A | = | -5 |
| -4.0 | Round 4 | CHINA HOBBY | 11 | 3♥ | ♦Q | -1 | -5 |
| -4.0 | Round 6 | ZIMMERMANN | 1 | 3NT | ♠3 | +1 | -8 |
| -4.7 | Round 1 | PASKE | 3 | 3♦ | ♣8 | +3 | -14 |
| -4.8 | Round 4 | CHINA HOBBY | 18 | 4♠ | ♥3 | -1 | -6 |
| -5.0 | Round 1 | PASKE | 8 | 3NT | ♠4 | -1 | -10 |
| -6.3 | Round 7 | HAMPSON | 12 | 3NT | ♦Q | = | -3 |
| -7.1 | Round 2 | CUSHING | 17 | 3NT | ♥K | +1 | -4 |
| -7.6 | Round 2 | CUSHING | 15 | 5♣ | ♠K | +1 | +13 |
| -8.0 | Round 4 | CHINA HOBBY | 20 | 3NT | ♣4 | = | -10 |
| -8.4 | Round 1 | PASKE | 5 | 4♠x | ♥Q | -2 | -10 |
| -9.0 | Round 6 | ZIMMERMANN | 2 | 4♥ | ♣9 | -1 | -10 |
| -9.6 | Round 4 | CHINA HOBBY | 13 | 3NT | ♥8 | -3 | -9 |