DU Yi · WEIYU JUNIOR MIDDLE SCHOOL
vs par split: bidding -0.70 · play -0.70
Strength of schedule: opponents averaged -0.45/bd (an easy draw) → opponent-adjusted -0.91/bd
Card play — on target: opening leads 66.7% #603 of 671 · declarer play 64.3% #592 of 671 · defence 72.2% #640 of 672
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 66.7% (9) |
| Declarer play | · | 64.3% (14) |
| Defence | · | 72.2% (18) |
Opening leads by suit led: ♠ 0.0% (1) · ♥ 100.0% (1) · ♦ 100.0% (3) · ♣ 50.0% (4)
vs par by strain: a suit -1.40 (47)
vs par by level: part-score -1.77 (22) · game -0.67 (24) · slam -11.00 (1)
By role: declaring -0.41/bd (-2.14 vs par · 36) · defending -0.54/bd (+0.92 vs par · 24)
By vulnerability: vulnerable -1.05/bd (-0.94 vs par · 33) · not vulnerable +0.25/bd (-0.89 vs par · 27)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | S.Shan | X.Chen – L.Sun | Open | 10 | -13.8 | -1.38 | -0.20 |
| Round 7 | S.Shan | Y.Hu – Q.Zhang | Open | 10 | -20.8 | -2.08 | -3.10 |
| Round 8 | S.Shan | A.Weber – A.Delorenzo | Open | 10 | +11.0 | +1.10 | +0.90 |
| Round 10 | S.Shan | J.Hu – G.Wang | Open | 10 | +9.1 | +0.91 | +2.40 |
| Round 11 | S.Shan | Y.Zhao – L.Dong | Open | 10 | -10.2 | -1.02 | -0.40 |
| Round 13 | S.Shan | H.Wang – P.Li | Open | 10 | -3.2 | -0.32 | -5.10 |
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 |
|---|---|---|---|---|---|---|---|
| +9.1 | Round 10 | XINJIANG | 9 | 5♥x | ♦A | -1 | +11 |
| +8.4 | Round 13 | HEILONGJIANG YAXUAN | 8 | 6♠ | ♦Q | = | -11 |
| +7.7 | Round 8 | ANDREW | 11 | 4♠x | ♦J | = | +7 |
| +6.5 | Round 1 | SH PANYU MIDDLE SCHOOL | 7 | 3N | ♠J | -1 | +13 |
| +6.5 | Round 13 | HEILONGJIANG YAXUAN | 6 | 3N | ♠4 | +2 | -11 |
| +5.7 | Round 1 | SH PANYU MIDDLE SCHOOL | 8 | 3N | ♣2 | -3 | +6 |
| +5.0 | Round 8 | ANDREW | 16 | 2♥ | ♣A | = | +6 |
| +4.7 | Round 11 | BLUEMAROON | 16 | 5♠ | ♣9 | = | +0 |
| +3.9 | Round 8 | ANDREW | 19 | 3♦ | ♥K | -3 | +2 |
| +3.2 | Round 10 | XINJIANG | 2 | 4♥ | ♠A | -1 | +7 |
| +2.4 | Round 10 | XINJIANG | 7 | 1N | ♠8 | +3 | -8 |
| +2.3 | Round 10 | XINJIANG | 8 | 3♠ | ♦A | = | +6 |
| +1.8 | Round 7 | LIANHUA | 2 | 1N | ♠10 | +1 | +0 |
| +1.8 | Round 11 | BLUEMAROON | 20 | 3N | ♦8 | +1 | +13 |
| +1.5 | Round 8 | ANDREW | 18 | 2♠ | ♦Q | = | +0 |
| +1.1 | Round 8 | ANDREW | 14 | 2♥ | ♣8 | = | +0 |
| +1.0 | Round 10 | XINJIANG | 4 | 1N | ♣7 | -1 | +5 |
| +0.9 | Round 7 | LIANHUA | 6 | 4♥ | ♥6 | +1 | +0 |
| +0.8 | Round 1 | SH PANYU MIDDLE SCHOOL | 6 | 2♠ | ♦6 | -1 | +0 |
| +0.8 | Round 13 | HEILONGJIANG YAXUAN | 3 | 3N | ♦10 | +2 | +0 |
| +0.7 | Round 7 | LIANHUA | 10 | 2♥ | ♣Q | +1 | +0 |
| +0.6 | Round 8 | ANDREW | 17 | 3N | ♥7 | = | -6 |
| +0.5 | Round 10 | XINJIANG | 6 | 4♠ | ♣K | = | +0 |
| +0.3 | Round 10 | XINJIANG | 5 | 4♠ | ♦9 | +2 | +11 |
| +0.2 | Round 11 | BLUEMAROON | 19 | 4♠ | ♥K | = | +0 |
| -0.0 | Round 7 | LIANHUA | 3 | 3♦ | ♣5 | -2 | -9 |
| -0.0 | Round 13 | HEILONGJIANG YAXUAN | 9 | 3N | ♥3 | +2 | +0 |
| -0.2 | Round 7 | LIANHUA | 4 | 3N | ♠8 | +1 | -1 |
| -0.4 | Round 10 | XINJIANG | 3 | 1N | ♠6 | -3 | +0 |
| -0.6 | Round 13 | HEILONGJIANG YAXUAN | 5 | 5♦ | ♠2 | = | -13 |
| -0.9 | Round 8 | ANDREW | 15 | 2♥ | ♦Q | = | +1 |
| -1.2 | Round 13 | HEILONGJIANG YAXUAN | 1 | 4♠ | ♥Q | = | +0 |
| -1.3 | Round 13 | HEILONGJIANG YAXUAN | 7 | 4♥ | ♦A | +1 | +0 |
| -1.4 | Round 1 | SH PANYU MIDDLE SCHOOL | 9 | 4N | ♥10 | +1 | +0 |
| -1.4 | Round 13 | HEILONGJIANG YAXUAN | 10 | 1♠x | ♥4 | -1 | -2 |
| -1.6 | Round 11 | BLUEMAROON | 18 | 4♣ | ♠K | -1 | -4 |
| -1.8 | Round 1 | SH PANYU MIDDLE SCHOOL | 1 | 3♦ | ♣2 | = | -8 |
| -1.9 | Round 7 | LIANHUA | 1 | 4♥ | ♥A | +2 | -1 |
| -1.9 | Round 7 | LIANHUA | 7 | 3♠ | ♥6 | -1 | -6 |
| -1.9 | Round 8 | ANDREW | 13 | 5♥x | ♦K | -3 | +5 |
| -2.1 | Round 11 | BLUEMAROON | 11 | 1♦ | ♣K | -4 | -6 |
| -2.1 | Round 11 | BLUEMAROON | 12 | 2♥x | ♦K | -2 | +8 |
| -2.2 | Round 11 | BLUEMAROON | 13 | 2♥ | ♠5 | +1 | -2 |
| -2.3 | Round 1 | SH PANYU MIDDLE SCHOOL | 4 | 4♠ | ♣2 | -2 | -2 |
| -2.4 | Round 11 | BLUEMAROON | 17 | 2♠ | ♣Q | = | +0 |
| -2.6 | Round 8 | ANDREW | 20 | 4♠ | ♥K | = | +0 |
| -2.9 | Round 11 | BLUEMAROON | 15 | 4♠ | ♣A | -1 | +2 |
| -3.0 | Round 10 | XINJIANG | 1 | 2♦x | ♥J | -1 | -1 |
| -3.4 | Round 8 | ANDREW | 12 | 4♠ | ♥4 | -2 | -6 |
| -3.6 | Round 1 | SH PANYU MIDDLE SCHOOL | 2 | 4♠ | ♣2 | -3 | -4 |
| -3.6 | Round 11 | BLUEMAROON | 14 | 3♦ | ♥K | +2 | -15 |
| -3.7 | Round 1 | SH PANYU MIDDLE SCHOOL | 3 | 5♦ | ♣2 | = | +2 |
| -4.5 | Round 1 | SH PANYU MIDDLE SCHOOL | 5 | 5♦x | ♦J | -1 | -2 |
| -4.7 | Round 7 | LIANHUA | 5 | 5♠x | ♦Q | -1 | -7 |
| -5.2 | Round 13 | HEILONGJIANG YAXUAN | 4 | 4♠ | ♣J | +2 | -1 |
| -6.3 | Round 10 | XINJIANG | 10 | 2♦x | ♠J | = | -7 |
| -7.3 | Round 7 | LIANHUA | 8 | 4♠ | ♦4 | = | -12 |
| -8.2 | Round 7 | LIANHUA | 9 | 4♦x | ♥3 | -3 | +5 |
| -9.2 | Round 13 | HEILONGJIANG YAXUAN | 2 | 4♥ | ♣2 | -1 | -13 |
| -9.5 | Round 1 | SH PANYU MIDDLE SCHOOL | 10 | 3♥ | ♠4 | +2 | -7 |