ZHANG Xiaofeng · PAN-CHINA
vs par split: bidding +0.89 · play +0.52
Strength of schedule: opponents averaged +0.23/bd (a tough draw) → opponent-adjusted +0.80/bd
Card play — on target: opening leads 72.2% #380 of 579 · declarer play 75.0% #257 of 579 · defence 94.1% #113 of 579
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 80.0% (5) | 69.2% (13) |
| Declarer play | 50.0% (6) | 90.0% (10) |
| Defence | 92.9% (14) | 95.0% (20) |
Opening leads by suit led: ♠ 100.0% (1) · ♥ 66.7% (3) · ♦ 75.0% (8) · ♣ 66.7% (6)
vs par by strain: NT +1.91 (21) · a suit +1.11 (35)
vs par by level: part-score +1.56 (25) · game +2.08 (26) · slam -2.80 (5)
By role: declaring +0.49/bd (-2.91 vs par · 22) · defending +0.62/bd (+4.21 vs par · 34)
By vulnerability: vulnerable -0.41/bd (+0.86 vs par · 29) · not vulnerable +1.62/bd (+2.00 vs par · 27)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | H.Liu | H.Vahaboglu – N.Aydogdu | Open | 7 | +11.8 | +1.69 | +3.71 |
| Round 2 | H.Liu | W.He – Z.Zhang | Open | 7 | -2.1 | -0.30 | -2.29 |
| Round 3 | H.Liu | H.Song – G.Huang | Open | 7 | +2.9 | +0.41 | +1.71 |
| Round 4 | H.Liu | M.Iliev – H.Hristov | Closed | 7 | +8.7 | +1.24 | +5.43 |
| Round 5 | H.Liu | W.Lai – K.Mak | Open | 7 | +13.0 | +1.86 | +2.14 |
| Round 6 | H.Liu | M.Nowosadzki – J.Kalita | Open | 7 | +1.7 | +0.24 | +3.57 |
| Round 7 | H.Liu | K.Baskaran – A.Mel (De) | Open | 7 | -0.0 | -0.00 | +1.43 |
| Round 8 | H.Liu | M.Rosenberg – C.Willenken | Open | 7 | -4.2 | -0.60 | -4.43 |
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 |
|---|---|---|---|---|---|---|---|
| +12.2 | Round 5 | HK ZEN | 2 | 4♠x | ♣9 | -3 | +12 |
| +10.2 | Round 1 | TURKEY | 7 | 4♠ | ♥J | -2 | +13 |
| +9.8 | Round 4 | BULGARIAN ALL STARS | 25 | 2♠ | ♦7 | +3 | +15 |
| +6.5 | Round 5 | HK ZEN | 6 | 7♣ | ♠6 | = | -2 |
| +5.0 | Round 3 | YUETAO OF GUANGZHOU | 16 | 6♦ | ♥7 | = | -2 |
| +5.0 | Round 6 | ZAWADA | 12 | 3NT | ♠2 | -2 | +11 |
| +4.9 | Round 1 | TURKEY | 3 | 2NT | ♣Q | -4 | +7 |
| +4.5 | Round 3 | YUETAO OF GUANGZHOU | 21 | 6♠ | ♦K | = | -13 |
| +4.3 | Round 7 | BLADES | 16 | 2♣ | ♥J | +2 | +10 |
| +3.1 | Round 2 | ZHONGSHAN JIEGAO | 9 | 5♣ | ♦A | = | +0 |
| +3.1 | Round 3 | YUETAO OF GUANGZHOU | 17 | 2NT | ♠Q | -1 | +5 |
| +2.9 | Round 8 | FLEISHER | 27 | 4♠ | ♥A | -2 | +0 |
| +2.8 | Round 6 | ZAWADA | 14 | 5♣ | ♠2 | = | +3 |
| +2.6 | Round 8 | FLEISHER | 24 | 5♥ | ♠Q | = | +0 |
| +2.2 | Round 2 | ZHONGSHAN JIEGAO | 14 | 1NTx | ♣4 | -1 | +0 |
| +2.2 | Round 5 | HK ZEN | 5 | 2♠ | ♥A | -1 | +3 |
| +2.0 | Round 4 | BULGARIAN ALL STARS | 22 | 3♦ | ♣A | -2 | +2 |
| +2.0 | Round 4 | BULGARIAN ALL STARS | 23 | 6♣ | ♦9 | -1 | +17 |
| +2.0 | Round 8 | FLEISHER | 25 | 4♠x | ♦A | -3 | -3 |
| +2.0 | Round 8 | FLEISHER | 26 | 3NT | ♠3 | = | +0 |
| +1.9 | Round 1 | TURKEY | 2 | 3NT | ♥5 | -2 | +6 |
| +1.8 | Round 5 | HK ZEN | 1 | 3NT | ♥7 | = | +0 |
| +1.5 | Round 4 | BULGARIAN ALL STARS | 24 | 3NT | ♠5 | +1 | -1 |
| +1.1 | Round 2 | ZHONGSHAN JIEGAO | 13 | 4♥ | ♣5 | +1 | +0 |
| +0.5 | Round 7 | BLADES | 15 | 3♠ | ♣K | +3 | +13 |
| +0.4 | Round 7 | BLADES | 19 | 3♣ | ♣2 | = | -1 |
| +0.3 | Round 2 | ZHONGSHAN JIEGAO | 11 | 4♠ | ♥J | +1 | -10 |
| +0.3 | Round 7 | BLADES | 20 | 4♥ | ♠J | +2 | -13 |
| +0.2 | Round 1 | TURKEY | 6 | 3♣ | ♥A | +1 | +6 |
| +0.1 | Round 4 | BULGARIAN ALL STARS | 26 | 5♦ | ♣Q | +1 | +13 |
| -0.3 | Round 6 | ZAWADA | 11 | 2♠ | ♦10 | -1 | -2 |
| -0.6 | Round 7 | BLADES | 17 | 2♠ | ♦8 | +1 | +0 |
| -0.9 | Round 6 | ZAWADA | 13 | 3♠ | ♥2 | = | +0 |
| -1.0 | Round 5 | HK ZEN | 7 | 4♠ | ♦4 | = | +0 |
| -1.2 | Round 3 | YUETAO OF GUANGZHOU | 18 | 2♠ | ♠K | -1 | -2 |
| -1.2 | Round 6 | ZAWADA | 9 | 3NT | ♣3 | +1 | +12 |
| -1.2 | Round 6 | ZAWADA | 10 | 3♠ | ♦A | = | +0 |
| -1.4 | Round 1 | TURKEY | 1 | 2♠ | ♦J | +1 | -6 |
| -1.4 | Round 1 | TURKEY | 5 | 1NT | ♠5 | -2 | -1 |
| -1.6 | Round 2 | ZHONGSHAN JIEGAO | 12 | 1NT | ♠Q | +1 | +1 |
| -2.0 | Round 3 | YUETAO OF GUANGZHOU | 19 | 3NT | ♦6 | +1 | +17 |
| -2.3 | Round 7 | BLADES | 18 | 2♠ | ♦Q | = | +1 |
| -2.5 | Round 6 | ZAWADA | 8 | 3NT | ♦J | = | +1 |
| -2.6 | Round 1 | TURKEY | 4 | 1NT | ♣5 | -1 | +1 |
| -2.6 | Round 7 | BLADES | 21 | 2♠ | ♥5 | +1 | +0 |
| -2.6 | Round 8 | FLEISHER | 23 | 1NT | ♠6 | -2 | -3 |
| -2.9 | Round 2 | ZHONGSHAN JIEGAO | 8 | 1NT | ♣5 | +1 | -6 |
| -3.0 | Round 3 | YUETAO OF GUANGZHOU | 20 | 3NT | ♥8 | +1 | +12 |
| -3.2 | Round 4 | BULGARIAN ALL STARS | 27 | 5♣ | ♦A | = | +0 |
| -3.2 | Round 5 | HK ZEN | 3 | 2♠ | ♣K | -1 | +1 |
| -3.5 | Round 3 | YUETAO OF GUANGZHOU | 15 | 2♥ | ♦Q | = | -5 |
| -3.5 | Round 4 | BULGARIAN ALL STARS | 28 | 3NT | ♣4 | -2 | -8 |
| -3.5 | Round 8 | FLEISHER | 28 | 4♥ | ♣K | -2 | -11 |
| -4.3 | Round 2 | ZHONGSHAN JIEGAO | 10 | 3NT | ♣5 | +2 | -1 |
| -5.5 | Round 5 | HK ZEN | 4 | 3NT | ♣5 | = | +1 |
| -7.6 | Round 8 | FLEISHER | 22 | 6NT | ♣10 | -3 | -14 |