YU Xiaoguang · SHANGHAILVCHENG
417rank
-11.5Butler · 70 bds
-0.16per board
±4.0swing
-0.36vs par /bd · #422/567
+0.04adjusted /bd
by round
vs par split: bidding -0.23 · play -0.09
Strength of schedule: opponents averaged +0.20/bd (a tough draw) → opponent-adjusted +0.04/bd
Card play — on target: opening leads 71.4% #492 of 567 · declarer play 84.6% #102 of 567 · defence 84.6% #222 of 567
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 75.0% (4) | 70.0% (10) |
| Declarer play | 66.7% (3) | 90.0% (10) |
| Defence | 75.0% (12) | 88.9% (27) |
Opening leads by suit led: ♠ 75.0% (8) · ♥ 33.3% (3) · ♣ 100.0% (3)
vs par by strain: NT -0.78 (18) · a suit -0.16 (51)
vs par by level: part-score -0.38 (34) · game -0.50 (34) · slam +8.00 (1)
By role: declaring +0.03/bd (-1.71 vs par · 31) · defending -0.32/bd (+0.72 vs par · 39)
By vulnerability: vulnerable -0.63/bd (-0.53 vs par · 34) · not vulnerable +0.27/bd (-0.19 vs par · 36)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 2 | S.Zhang | J.Ge – H.Liu | Closed | 10 | -5.9 | -0.59 | -2.10 |
| Round 4 | S.Zhang | A.Soebroto – E.Sefita | Open | 10 | -2.1 | -0.21 | +0.00 |
| Round 5 | S.Zhang | G.Xin – H.Jiang | Closed | 10 | +25.4 | +2.54 | +3.40 |
| Round 6 | S.Zhang | S.Liu – Y.Kuang | Closed | 10 | -22.1 | -2.21 | -4.10 |
| Round 9 | S.Zhang | A.Arlovich – E.Vainikonis | Closed | 10 | -9.1 | -0.91 | +2.20 |
| Round 11 | S.Zhang | X.Guo – Y.Huang | Closed | 10 | -5.3 | -0.53 | -1.20 |
| Round 14 | S.Zhang | S.Basu – B.Dey | Closed | 10 | +7.6 | +0.76 | -0.70 |
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 |
|---|---|---|---|---|---|---|---|
| +9.5 | Round 5 | SAN CHEN FUND | 20 | 4♠ | ♦10 | = | +10 |
| +8.0 | Round 9 | BRIDGESCANNER | 29 | 4♠ | ♦8 | = | +10 |
| +6.8 | Round 4 | INDONESIA Mixed | 1 | 3♣ | ♠K | +2 | +7 |
| +6.4 | Round 11 | ZHONGSHAN JIEGAO | 11 | 3NT | ♣K | -2 | +5 |
| +5.2 | Round 2 | JSQX NJZS BRIDGECLUB | 19 | 3NT | ♠3 | -1 | +6 |
| +5.1 | Round 11 | ZHONGSHAN JIEGAO | 15 | 4♠ | ♦6 | = | -1 |
| +5.0 | Round 5 | SAN CHEN FUND | 13 | 4♠ | ♣Q | = | +0 |
| +4.9 | Round 14 | INDIA TSANGPO | 20 | 4♥ | ♦A | -2 | +2 |
| +4.4 | Round 5 | SAN CHEN FUND | 17 | 4♠ | ♣3 | -1 | +5 |
| +4.2 | Round 2 | JSQX NJZS BRIDGECLUB | 15 | 4♠ | ♦A | -1 | +3 |
| +4.2 | Round 9 | BRIDGESCANNER | 21 | 4♠ | ♦A | = | +0 |
| +3.5 | Round 14 | INDIA TSANGPO | 18 | 4♥ | ♣3 | +1 | +4 |
| +3.2 | Round 5 | SAN CHEN FUND | 14 | 1♠ | ♦A | = | -2 |
| +3.0 | Round 14 | INDIA TSANGPO | 14 | 1NT | ♣10 | -1 | +4 |
| +2.7 | Round 9 | BRIDGESCANNER | 28 | 2♥ | ♦3 | = | +1 |
| +2.4 | Round 5 | SAN CHEN FUND | 15 | 2♥ | ♠A | +1 | +6 |
| +2.2 | Round 14 | INDIA TSANGPO | 15 | 2♥ | ♠7 | = | -5 |
| +1.9 | Round 9 | BRIDGESCANNER | 24 | 3♥ | ♠3 | -2 | +5 |
| +1.9 | Round 14 | INDIA TSANGPO | 11 | 3NT | ♣5 | = | -1 |
| +1.8 | Round 9 | BRIDGESCANNER | 30 | 4♠ | ♦Q | -1 | +10 |
| +1.7 | Round 5 | SAN CHEN FUND | 18 | 3NT | ♠6 | -1 | +6 |
| +1.6 | Round 6 | REIGNWOOD | 23 | 2♠ | ♣6 | +1 | +0 |
| +1.6 | Round 11 | ZHONGSHAN JIEGAO | 17 | 2NT | ♦A | -3 | -6 |
| +1.3 | Round 4 | INDONESIA Mixed | 2 | 5♣x | ♥A | -1 | +0 |
| +1.2 | Round 2 | JSQX NJZS BRIDGECLUB | 18 | 2♥ | ♠A | -1 | +4 |
| +1.0 | Round 2 | JSQX NJZS BRIDGECLUB | 12 | 3♥ | ♣A | -2 | -9 |
| +0.7 | Round 4 | INDONESIA Mixed | 10 | 2♠ | ♣Q | -1 | +0 |
| +0.7 | Round 9 | BRIDGESCANNER | 25 | 5♥ | ♥5 | +2 | +10 |
| +0.7 | Round 14 | INDIA TSANGPO | 19 | 3NT | ♠5 | -1 | +0 |
| +0.6 | Round 2 | JSQX NJZS BRIDGECLUB | 14 | 3♦ | ♥2 | = | +5 |
| +0.2 | Round 5 | SAN CHEN FUND | 11 | 1♠ | ♥3 | +2 | +0 |
| +0.2 | Round 6 | REIGNWOOD | 30 | 2♥ | ♠3 | +2 | -6 |
| +0.2 | Round 11 | ZHONGSHAN JIEGAO | 18 | 2♠ | ♥2 | = | +0 |
| +0.0 | Round 5 | SAN CHEN FUND | 12 | 1NT | ♠J | -1 | +2 |
| -0.1 | Round 9 | BRIDGESCANNER | 27 | 4♥ | ♠2 | -3 | -7 |
| -0.3 | Round 6 | REIGNWOOD | 21 | 3NT | ♦6 | -3 | -6 |
| -0.4 | Round 4 | INDONESIA Mixed | 5 | 4♠ | ♥A | +1 | -1 |
| -0.4 | Round 4 | INDONESIA Mixed | 9 | 2♥ | ♠A | -1 | +5 |
| -0.4 | Round 5 | SAN CHEN FUND | 19 | 3♠ | ♦3 | = | +0 |
| -0.6 | Round 4 | INDONESIA Mixed | 3 | 4♥ | ♠K | +2 | -11 |
| -0.6 | Round 5 | SAN CHEN FUND | 16 | 3♣ | ♠Q | +1 | +7 |
| -0.6 | Round 6 | REIGNWOOD | 24 | 3♣ | ♥Q | -1 | -2 |
| -0.6 | Round 14 | INDIA TSANGPO | 12 | 4♠ | ♦4 | = | +0 |
| -0.7 | Round 4 | INDONESIA Mixed | 7 | 2♠ | ♣K | +1 | +0 |
| -0.9 | Round 4 | INDONESIA Mixed | 6 | 2♥ | ♠7 | -1 | +0 |
| -0.9 | Round 6 | REIGNWOOD | 22 | 2♥ | ♦Q | +1 | +0 |
| -1.2 | Round 6 | REIGNWOOD | 28 | 1NT | ♦4 | +1 | +1 |
| -1.4 | Round 11 | ZHONGSHAN JIEGAO | 12 | 4♥ | ♦J | = | +0 |
| -1.5 | Round 14 | INDIA TSANGPO | 16 | 4♠ | ♥A | -1 | -5 |
| -1.6 | Round 2 | JSQX NJZS BRIDGECLUB | 13 | 1NT | ♦K | +1 | +0 |
| -1.7 | Round 14 | INDIA TSANGPO | 17 | 4♠ | ♣6 | +1 | +0 |
| -2.2 | Round 4 | INDONESIA Mixed | 8 | 2♠ | ♣10 | = | +0 |
| -3.0 | Round 11 | ZHONGSHAN JIEGAO | 14 | 3♦ | ♠A | -1 | -2 |
| -3.1 | Round 2 | JSQX NJZS BRIDGECLUB | 16 | 3♦ | ♣2 | = | +0 |
| -3.1 | Round 11 | ZHONGSHAN JIEGAO | 13 | 1NT | ♣J | +3 | +1 |
| -3.2 | Round 11 | ZHONGSHAN JIEGAO | 16 | 4♥ | ♠6 | -1 | -5 |
| -3.2 | Round 11 | ZHONGSHAN JIEGAO | 20 | Pass | -3 | ||
| -3.3 | Round 6 | REIGNWOOD | 25 | 3NT | ♠4 | -2 | -7 |
| -3.7 | Round 2 | JSQX NJZS BRIDGECLUB | 11 | 4♥ | ♣A | -2 | -8 |
| -4.0 | Round 2 | JSQX NJZS BRIDGECLUB | 17 | 3♣ | ♥2 | -1 | -10 |
| -4.7 | Round 6 | REIGNWOOD | 26 | 1NT | ♠2 | -3 | -5 |
| -4.7 | Round 11 | ZHONGSHAN JIEGAO | 19 | 3NT | ♥4 | +1 | -1 |
| -4.8 | Round 14 | INDIA TSANGPO | 13 | 1NT | ♠4 | +2 | -6 |
| -5.0 | Round 6 | REIGNWOOD | 29 | 4♠ | ♦J | +2 | -13 |
| -5.7 | Round 2 | JSQX NJZS BRIDGECLUB | 20 | 4♠ | ♣9 | -1 | -12 |
| -5.7 | Round 4 | INDONESIA Mixed | 4 | 3NT | ♠J | +2 | +0 |
| -6.4 | Round 9 | BRIDGESCANNER | 22 | 3NT | ♠9 | = | -7 |
| -7.7 | Round 9 | BRIDGESCANNER | 23 | 6♦ | ♥9 | = | +8 |
| -7.9 | Round 6 | REIGNWOOD | 27 | 4♠ | ♥A | = | -3 |
| -14.2 | Round 9 | BRIDGESCANNER | 26 | 2♥x | ♦A | -6 | -8 |