ZHANG Guangyang · SHAOGUAN BRIDGE ASOCIATION
vs par split: bidding -0.79 · play +0.36
Strength of schedule: opponents averaged +0.30/bd (a tough draw) → opponent-adjusted +0.17/bd
Card play — on target: opening leads 75.0% #169 of 310 · declarer play 71.4% #199 of 310 · defence 93.8% #45 of 311
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 50.0% (2) | 100.0% (2) |
| Declarer play | 75.0% (4) | 70.0% (10) |
| Defence | 100.0% (6) | 90.0% (10) |
Opening leads by suit led: ♥ 100.0% (2) · ♦ 0.0% (1) · ♣ 100.0% (1)
vs par by strain: NT +1.15 (13) · a suit -1.14 (29)
vs par by level: part-score +0.79 (19) · game -0.26 (19) · slam -7.00 (4)
By role: declaring -0.50/bd (-2.62 vs par · 26) · defending +0.48/bd (+3.12 vs par · 16)
By vulnerability: vulnerable -0.73/bd (-1.86 vs par · 22) · not vulnerable +0.54/bd (+1.15 vs par · 20)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | S.Liu | T.Sadek – K.Nabil | Open | 7 | +5.7 | +0.81 | +0.57 |
| Round 2 | S.Liu | M.Prescott – A.Wilsmore | Closed | 7 | -14.9 | -2.13 | -4.71 |
| Round 3 | S.Liu | D.Tong – P.Li | Closed | 7 | +4.6 | +0.66 | +1.29 |
| Round 4 | S.Liu | A.Meyerson – H.Liu | Closed | 7 | +17.1 | +2.44 | +4.43 |
| Round 5 | S.Liu | J.Carroll – T.Hanlon | Open | 7 | +0.7 | +0.10 | -1.29 |
| Round 7 | S.Liu | A.Smirnov – J.Piekarek | Closed | 7 | -18.6 | -2.66 | -2.86 |
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 |
|---|---|---|---|---|---|---|---|
| +11.3 | Round 3 | KUNMING LIJIAN | 16 | 2♠x | ♣7 | -3 | +9 |
| +6.8 | Round 3 | KUNMING LIJIAN | 17 | 3NT | ♦J | +1 | +4 |
| +6.3 | Round 4 | TEXAN ACES | 28 | 3NT | ♣4 | +1 | +4 |
| +5.1 | Round 2 | LORENTZ | 10 | 4♥ | ♠K | = | +3 |
| +4.9 | Round 4 | TEXAN ACES | 23 | 3NT | ♦4 | -1 | +6 |
| +4.8 | Round 1 | HUSSEIN | 4 | 1NT | ♣A | = | +12 |
| +4.7 | Round 4 | TEXAN ACES | 22 | 2♥ | ♦3 | +1 | +10 |
| +3.3 | Round 7 | LITTLE MECK | 20 | 2♠ | ♥7 | -1 | +5 |
| +3.1 | Round 1 | HUSSEIN | 1 | 3NT | ♦9 | +1 | +0 |
| +3.1 | Round 5 | ROSENTHAL | 7 | 6♥ | ♠A | = | +0 |
| +2.7 | Round 1 | HUSSEIN | 3 | 3♥ | ♦K | = | +0 |
| +2.3 | Round 4 | TEXAN ACES | 26 | 1NT | ♠7 | +2 | +1 |
| +2.3 | Round 5 | ROSENTHAL | 5 | 4♠ | ♠2 | -1 | +10 |
| +2.0 | Round 5 | ROSENTHAL | 6 | 6♠ | ♦3 | +1 | -11 |
| +1.3 | Round 3 | KUNMING LIJIAN | 20 | 1NT | ♥Q | +2 | -1 |
| +1.0 | Round 1 | HUSSEIN | 5 | 2♥ | ♠K | +1 | +0 |
| +1.0 | Round 5 | ROSENTHAL | 1 | 4♥ | ♣A | +1 | +0 |
| +0.9 | Round 2 | LORENTZ | 8 | 1NT | ♠2 | +1 | +0 |
| +0.9 | Round 4 | TEXAN ACES | 27 | 4♠ | ♦4 | = | +11 |
| +0.8 | Round 1 | HUSSEIN | 2 | 2♥ | ♥3 | +3 | +10 |
| +0.7 | Round 7 | LITTLE MECK | 17 | 4♥ | ♠6 | -2 | +7 |
| +0.6 | Round 7 | LITTLE MECK | 19 | 2♠ | ♦10 | -1 | +2 |
| +0.1 | Round 4 | TEXAN ACES | 25 | 3NT | ♠Q | = | +0 |
| -1.3 | Round 3 | KUNMING LIJIAN | 15 | 4♥ | ♠10 | +3 | +10 |
| -1.5 | Round 2 | LORENTZ | 9 | 2♠ | ♣J | +2 | -1 |
| -1.7 | Round 1 | HUSSEIN | 6 | 1NT | ♥3 | +1 | -10 |
| -2.1 | Round 4 | TEXAN ACES | 24 | 1NT | ♥4 | +1 | -1 |
| -2.1 | Round 5 | ROSENTHAL | 4 | 4♠ | ♦K | -1 | -6 |
| -2.3 | Round 5 | ROSENTHAL | 3 | 3NT | ♦J | = | +0 |
| -2.6 | Round 7 | LITTLE MECK | 21 | 6NT | ♥9 | = | +0 |
| -2.7 | Round 7 | LITTLE MECK | 15 | 4♠ | ♦2 | -1 | -12 |
| -3.1 | Round 2 | LORENTZ | 14 | 4♠ | ♣3 | -2 | -5 |
| -3.3 | Round 5 | ROSENTHAL | 2 | 3♥ | ♥3 | -2 | -2 |
| -3.4 | Round 3 | KUNMING LIJIAN | 19 | 3♠ | ♦Q | +1 | -1 |
| -3.6 | Round 3 | KUNMING LIJIAN | 18 | 3♥ | ♣4 | -1 | +0 |
| -5.0 | Round 1 | HUSSEIN | 7 | 4♠x | ♥A | -1 | -8 |
| -5.2 | Round 2 | LORENTZ | 13 | 4♠ | ♥5 | +2 | -17 |
| -5.2 | Round 7 | LITTLE MECK | 16 | 5♥x | ♦2 | -2 | -5 |
| -5.5 | Round 2 | LORENTZ | 12 | 4♥x | ♦J | -1 | -7 |
| -5.6 | Round 2 | LORENTZ | 11 | 2♥ | ♣3 | +1 | -6 |
| -6.5 | Round 3 | KUNMING LIJIAN | 21 | 2♦ | ♣2 | = | -12 |
| -12.7 | Round 7 | LITTLE MECK | 18 | 6♦ | ♠A | -1 | -17 |