LIU Song · SHAOGUAN BRIDGE ASOCIATION
vs par split: bidding -0.04 · play +0.27
Strength of schedule: opponents averaged +0.48/bd (a tough draw) → opponent-adjusted +0.99/bd
Card play — on target: opening leads 83.3% #177 of 579 · declarer play 90.9% #55 of 579 · defence 85.2% #330 of 579
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 40.0% (5) | 100.0% (13) |
| Declarer play | 100.0% (4) | 85.7% (7) |
| Defence | 88.9% (9) | 83.3% (18) |
Opening leads by suit led: ♠ 71.4% (7) · ♥ 66.7% (3) · ♦ 100.0% (2) · ♣ 100.0% (6)
vs par by strain: NT +1.72 (18) · a suit -0.65 (31)
vs par by level: part-score -0.10 (20) · game +1.16 (25) · slam -4.00 (4)
By role: declaring +0.21/bd (-4.18 vs par · 22) · defending +0.76/bd (+3.81 vs par · 27)
By vulnerability: vulnerable +0.70/bd (-0.56 vs par · 25) · not vulnerable +0.32/bd (+1.04 vs par · 24)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | G.Zhang | N.Demirev – E.Ginossar | Closed | 7 | +14.4 | +2.06 | +3.86 |
| Round 2 | G.Zhang | A.Meyerson – H.Liu | Closed | 7 | +9.2 | +1.31 | -0.57 |
| Round 3 | G.Zhang | A.Apteker – C.Gower | Closed | 7 | -12.2 | -1.74 | -0.14 |
| Round 4 | G.Zhang | Z.Chen – Y.Chen | Closed | 7 | -22.5 | -3.21 | -7.29 |
| Round 5 | G.Zhang | J.Dai – L.Yang | Open | 7 | -1.6 | -0.23 | -0.43 |
| Round 6 | G.Zhang | S.Hans – M.Whibley | Open | 7 | +9.3 | +1.33 | -1.57 |
| Round 8 | D.Hua | Q.Xie – W.Huang | Open | 7 | +28.4 | +4.06 | +7.71 |
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 |
|---|---|---|---|---|---|---|---|
| +12.8 | Round 1 | WEINSTEIN | 3 | 3NTx | ♣Q | -4 | +14 |
| +12.4 | Round 6 | LITTLE MECK | 10 | 3♦x | ♣A | -4 | +14 |
| +11.1 | Round 8 | KALAJUN-XINJIANG | 26 | 3NT | ♠3 | -2 | +13 |
| +9.6 | Round 8 | KALAJUN-XINJIANG | 25 | 5♥ | ♠A | -1 | +12 |
| +6.2 | Round 1 | WEINSTEIN | 6 | 3NT | ♥5 | = | +11 |
| +6.1 | Round 5 | HUANG LONG TEAM | 4 | 3NT | ♣6 | +1 | +0 |
| +6.0 | Round 2 | TEXAN ACES | 12 | 1NT | ♠Q | -4 | +8 |
| +5.5 | Round 2 | TEXAN ACES | 9 | 3NT | ♠4 | +3 | +3 |
| +5.2 | Round 3 | SOUTH AFRICA | 21 | 6♠ | ♥J | +1 | -13 |
| +5.1 | Round 6 | LITTLE MECK | 14 | 4♠ | ♦A | -1 | +6 |
| +4.0 | Round 8 | KALAJUN-XINJIANG | 22 | 6♦ | ♣4 | -1 | +12 |
| +3.9 | Round 8 | KALAJUN-XINJIANG | 27 | 3♠ | ♦9 | +1 | +7 |
| +3.5 | Round 8 | KALAJUN-XINJIANG | 28 | 4♥ | ♣3 | -2 | +11 |
| +2.4 | Round 2 | TEXAN ACES | 14 | 2♠ | ♥A | = | +0 |
| +2.0 | Round 6 | LITTLE MECK | 9 | 4♥ | ♣2 | +1 | -12 |
| +1.9 | Round 1 | WEINSTEIN | 2 | 3NT | ♥5 | -2 | +6 |
| +1.1 | Round 2 | TEXAN ACES | 13 | 4♥ | ♠A | +1 | +0 |
| +1.0 | Round 5 | HUANG LONG TEAM | 7 | 4♠ | ♥3 | = | +0 |
| +0.4 | Round 5 | HUANG LONG TEAM | 5 | 1♥ | ♣A | +2 | +0 |
| +0.3 | Round 2 | TEXAN ACES | 11 | 4♠ | ♥K | +1 | -10 |
| -0.0 | Round 4 | LUCKY SEVEN | 22 | 3♥ | ♦A | = | +0 |
| -0.0 | Round 4 | LUCKY SEVEN | 25 | 3NT | ♣4 | +2 | -12 |
| -0.1 | Round 6 | LITTLE MECK | 13 | 3♦ | ♠A | -1 | -1 |
| -0.2 | Round 5 | HUANG LONG TEAM | 3 | 3NT | ♠10 | -1 | -5 |
| -0.2 | Round 8 | KALAJUN-XINJIANG | 23 | 1NT | ♠6 | -1 | +0 |
| -0.3 | Round 1 | WEINSTEIN | 1 | 2♦ | ♠A | -2 | -5 |
| -0.6 | Round 5 | HUANG LONG TEAM | 2 | 2♥ | ♠10 | +1 | +0 |
| -0.7 | Round 4 | LUCKY SEVEN | 24 | 3NT | ♠Q | = | +2 |
| -1.2 | Round 3 | SOUTH AFRICA | 18 | 2♠ | ♥Q | -1 | -2 |
| -1.3 | Round 3 | SOUTH AFRICA | 17 | 2♥ | ♠K | = | +1 |
| -1.4 | Round 1 | WEINSTEIN | 5 | 2♣ | ♠6 | -2 | -1 |
| -1.8 | Round 5 | HUANG LONG TEAM | 1 | 3NT | ♥6 | = | +0 |
| -2.0 | Round 4 | LUCKY SEVEN | 23 | 6♣ | ♦10 | -1 | -17 |
| -2.1 | Round 6 | LITTLE MECK | 11 | 3♣ | ♠2 | +1 | +0 |
| -2.2 | Round 1 | WEINSTEIN | 7 | 5♣ | ♥6 | = | +1 |
| -2.6 | Round 1 | WEINSTEIN | 4 | 1NT | ♣9 | -1 | +1 |
| -2.6 | Round 2 | TEXAN ACES | 8 | 2♠ | ♥K | = | -5 |
| -2.8 | Round 4 | LUCKY SEVEN | 27 | 2♠ | ♦A | +1 | -6 |
| -2.9 | Round 3 | SOUTH AFRICA | 19 | 3NT | ♦5 | +2 | +17 |
| -3.0 | Round 6 | LITTLE MECK | 8 | 2♠ | ♣A | -3 | -7 |
| -3.5 | Round 2 | TEXAN ACES | 10 | 4♠ | ♣3 | = | +0 |
| -3.5 | Round 3 | SOUTH AFRICA | 15 | 2♥ | ♦Q | = | -5 |
| -3.5 | Round 8 | KALAJUN-XINJIANG | 24 | 5♥ | ♠A | +1 | -1 |
| -3.8 | Round 3 | SOUTH AFRICA | 20 | 3NT | ♠10 | +2 | +12 |
| -4.7 | Round 3 | SOUTH AFRICA | 16 | 3NT | ♣A | +3 | -11 |
| -4.8 | Round 4 | LUCKY SEVEN | 28 | 2♥ | ♣Q | -3 | -1 |
| -5.0 | Round 6 | LITTLE MECK | 12 | 3NT | ♠2 | -2 | -11 |
| -6.5 | Round 5 | HUANG LONG TEAM | 6 | 7♣ | ♣3 | = | +2 |
| -12.2 | Round 4 | LUCKY SEVEN | 26 | 3NT | ♣Q | -3 | -17 |