ZHU Qingfeng · HENAN FENGSHEN
30rank
+86.2Butler · 100 bds
+0.86per board
±4.5swing
+0.44vs par /bd · #165/672
+0.66adjusted /bd
by round
vs par split: bidding +0.06 · play -0.09
Strength of schedule: opponents averaged -0.20/bd (an easy draw) → opponent-adjusted +0.66/bd
Card play — on target: opening leads 77.8% #432 of 671 · declarer play 85.7% #136 of 671 · defence 85.3% #332 of 672
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 77.8% (18) |
| Declarer play | · | 85.7% (14) |
| Defence | · | 85.3% (34) |
Opening leads by suit led: ♠ 66.7% (3) · ♥ 60.0% (5) · ♦ 100.0% (5) · ♣ 80.0% (5)
vs par by strain: a suit -0.03 (68)
vs par by level: part-score +1.12 (32) · game -0.53 (32) · slam -5.25 (4)
By role: declaring +1.26/bd (-0.77 vs par · 51) · defending +0.45/bd (+1.69 vs par · 49)
By vulnerability: vulnerable +0.65/bd (-0.32 vs par · 59) · not vulnerable +1.16/bd (+1.54 vs par · 41)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 3 | X.Du | K.Sung – S.Kwon | Open | 10 | +37.5 | +3.75 | +2.50 |
| Round 5 | X.Du | S.Mukherjee – B.Das | Open | 10 | -28.1 | -2.81 | -3.20 |
| Round 7 | X.Du | X.Liu – S.Gu | Open | 10 | +13.3 | +1.33 | -0.40 |
| Round 8 | X.Du | W.Guan – Y.Ren | Closed | 10 | +17.7 | +1.77 | +1.40 |
| Round 9 | X.Du | N.Senior – G.Hecht-Johansen | Closed | 10 | -11.5 | -1.15 | -0.90 |
| Round 10 | X.Du | F.Hoffer – A.Hobart | Closed | 10 | -2.6 | -0.26 | -1.90 |
| Round 11 | X.Du | Y.Guan – Z.Xu | Open | 10 | +15.4 | +1.54 | +2.00 |
| Round 12 | X.Du | J.Ge – B.Song | Closed | 10 | +13.6 | +1.36 | +2.60 |
| Round 14 | X.Du | R.Marsal – E.Wladow | Open | 10 | +12.1 | +1.21 | -1.00 |
| Round 15 | X.Du | J.Katerbau – M.Rehder | Closed | 10 | +18.8 | +1.88 | +3.30 |
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 |
|---|---|---|---|---|---|---|---|
| +10.6 | Round 15 | GERMANY JUNIORS | 24 | 2Nx | ♣2 | = | +9 |
| +8.9 | Round 12 | JIANPING CONSTRUCTION | 30 | 4♥ | ♦A | = | +7 |
| +8.7 | Round 3 | HAPPY BRIDGE | 23 | 3♣ | ♥10 | +2 | +11 |
| +8.5 | Round 9 | FIREWORKS | 21 | 3N | ♦4 | -1 | +11 |
| +8.1 | Round 11 | SHANGHAI OCEAN | 15 | 4♠ | ♣A | +1 | +11 |
| +8.0 | Round 8 | TIANJIN | 12 | 3N | ♦10 | = | +6 |
| +7.1 | Round 3 | HAPPY BRIDGE | 28 | 4♥ | ♣3 | +1 | +6 |
| +7.1 | Round 9 | FIREWORKS | 22 | 4♥ | ♥2 | = | +5 |
| +6.9 | Round 3 | HAPPY BRIDGE | 24 | 3N | ♣K | +1 | +7 |
| +6.5 | Round 3 | HAPPY BRIDGE | 27 | 3N | ♥7 | = | +7 |
| +6.0 | Round 7 | TIANJIN UNION | 2 | 2♥ | ♣K | -3 | +5 |
| +6.0 | Round 8 | TIANJIN | 15 | 4♥ | ♦Q | -2 | +8 |
| +5.9 | Round 3 | HAPPY BRIDGE | 26 | 5♦ | ♣K | -1 | +5 |
| +5.9 | Round 15 | GERMANY JUNIORS | 21 | 4♠ | ♣10 | = | +7 |
| +5.6 | Round 7 | TIANJIN UNION | 9 | 3♥ | ♦A | +3 | +13 |
| +5.6 | Round 15 | GERMANY JUNIORS | 29 | 4♠x | ♣A | = | +5 |
| +5.5 | Round 15 | GERMANY JUNIORS | 26 | 2♣ | ♣2 | -3 | +4 |
| +5.4 | Round 8 | TIANJIN | 11 | 3N | ♦J | +2 | +4 |
| +4.7 | Round 11 | SHANGHAI OCEAN | 16 | 5♠ | ♣9 | = | +0 |
| +4.6 | Round 7 | TIANJIN UNION | 6 | 5♣x | ♦K | -4 | +4 |
| +4.5 | Round 10 | BARAN | 10 | 3♠ | ♣5 | -1 | +6 |
| +4.4 | Round 15 | GERMANY JUNIORS | 25 | 7♠ | ♥Q | -1 | +16 |
| +4.2 | Round 14 | GERMANY SENIORS 1 | 19 | 1N | ♥10 | -1 | -2 |
| +4.1 | Round 12 | JIANPING CONSTRUCTION | 29 | 4♠ | ♥Q | -2 | +3 |
| +3.8 | Round 11 | SHANGHAI OCEAN | 13 | 2♥ | ♠5 | -1 | +5 |
| +3.7 | Round 14 | GERMANY SENIORS 1 | 20 | 3N | ♦5 | +2 | +1 |
| +3.6 | Round 12 | JIANPING CONSTRUCTION | 22 | 3♦ | ♥10 | -1 | +5 |
| +3.5 | Round 8 | TIANJIN | 18 | 1Nx | ♠J | = | +2 |
| +3.5 | Round 10 | BARAN | 2 | 3N | ♣9 | = | +0 |
| +3.4 | Round 11 | SHANGHAI OCEAN | 11 | 3N | ♠10 | +1 | +0 |
| +3.3 | Round 3 | HAPPY BRIDGE | 30 | 3N | ♦5 | = | -6 |
| +3.3 | Round 12 | JIANPING CONSTRUCTION | 24 | 3N | ♠7 | -1 | -3 |
| +3.2 | Round 12 | JIANPING CONSTRUCTION | 26 | 2♠ | ♣A | +1 | +0 |
| +2.7 | Round 9 | FIREWORKS | 26 | 2N | ♦7 | +1 | +0 |
| +2.6 | Round 10 | BARAN | 8 | 3N | ♥Q | -1 | -1 |
| +2.4 | Round 14 | GERMANY SENIORS 1 | 15 | 3♦ | ♠6 | = | +0 |
| +2.4 | Round 14 | GERMANY SENIORS 1 | 16 | 4♠ | ♣6 | = | +0 |
| +2.3 | Round 9 | FIREWORKS | 23 | 2♥ | ♠3 | -2 | +2 |
| +2.2 | Round 14 | GERMANY SENIORS 1 | 12 | 1N | ♠4 | -1 | +5 |
| +2.1 | Round 11 | SHANGHAI OCEAN | 18 | 3♣ | ♠4 | = | +0 |
| +2.1 | Round 14 | GERMANY SENIORS 1 | 18 | 3♥ | ♥4 | +1 | +6 |
| +2.0 | Round 10 | BARAN | 3 | 3♠ | ♠9 | +2 | +2 |
| +1.7 | Round 7 | TIANJIN UNION | 10 | 2♠ | ♦A | +2 | +1 |
| +1.3 | Round 11 | SHANGHAI OCEAN | 17 | 3N | ♣A | -1 | +4 |
| +1.2 | Round 11 | SHANGHAI OCEAN | 19 | 4♠ | ♣J | +1 | +1 |
| +1.2 | Round 15 | GERMANY JUNIORS | 23 | 2♠ | ♣6 | -1 | +5 |
| +1.1 | Round 12 | JIANPING CONSTRUCTION | 28 | 3♠ | ♥3 | +3 | +6 |
| +0.9 | Round 8 | TIANJIN | 13 | 4♠ | ♠3 | +2 | +7 |
| +0.8 | Round 5 | TEXAN ACES | 12 | 2N | ♠5 | +1 | +1 |
| +0.8 | Round 12 | JIANPING CONSTRUCTION | 25 | 3N | ♥2 | +2 | +6 |
| +0.7 | Round 3 | HAPPY BRIDGE | 22 | 3N | ♣8 | +1 | -5 |
| +0.7 | Round 5 | TEXAN ACES | 14 | 3♣ | ♠Q | -1 | +2 |
| +0.6 | Round 3 | HAPPY BRIDGE | 21 | 1N | ♣10 | +2 | +0 |
| +0.6 | Round 8 | TIANJIN | 17 | 3N | ♥9 | = | -6 |
| +0.6 | Round 14 | GERMANY SENIORS 1 | 13 | 4♠ | ♦Q | +2 | -6 |
| +0.5 | Round 5 | TEXAN ACES | 16 | 2♠ | ♦6 | +1 | +0 |
| +0.5 | Round 12 | JIANPING CONSTRUCTION | 23 | 3N | ♠A | -1 | +6 |
| +0.5 | Round 14 | GERMANY SENIORS 1 | 17 | 1N | ♠4 | +1 | +0 |
| +0.5 | Round 15 | GERMANY JUNIORS | 28 | 2♣ | ♠2 | -2 | +2 |
| +0.1 | Round 7 | TIANJIN UNION | 1 | 4♥ | ♦6 | = | +1 |
| +0.1 | Round 11 | SHANGHAI OCEAN | 20 | 3N | ♠5 | +3 | +13 |
| -0.0 | Round 3 | HAPPY BRIDGE | 25 | 1N | ♥10 | = | +0 |
| -0.0 | Round 7 | TIANJIN UNION | 3 | 1N | ♣K | -2 | -9 |
| -0.2 | Round 7 | TIANJIN UNION | 4 | 4♥ | ♠9 | = | -1 |
| -0.3 | Round 10 | BARAN | 5 | 4♠ | ♣2 | +2 | -11 |
| -0.5 | Round 9 | FIREWORKS | 29 | 2♠ | ♥K | -1 | +0 |
| -0.5 | Round 10 | BARAN | 6 | 4♥ | ♣A | = | +0 |
| -0.6 | Round 9 | FIREWORKS | 28 | 3N | ♥J | +1 | +5 |
| -0.7 | Round 8 | TIANJIN | 14 | 3♦ | ♥7 | -1 | -2 |
| -0.8 | Round 7 | TIANJIN UNION | 5 | 5♦ | ♣K | -1 | -3 |
| -0.9 | Round 10 | BARAN | 1 | 2♠ | ♦A | -1 | -4 |
| -1.0 | Round 10 | BARAN | 4 | 2♠ | ♥A | -1 | -5 |
| -1.1 | Round 8 | TIANJIN | 16 | 2♠ | ♥K | +1 | +0 |
| -1.3 | Round 11 | SHANGHAI OCEAN | 14 | 3♥ | ♠6 | -5 | -15 |
| -1.5 | Round 9 | FIREWORKS | 27 | 2♦ | ♥A | -2 | +1 |
| -1.6 | Round 5 | TEXAN ACES | 20 | 4♥ | ♣K | +1 | +0 |
| -1.8 | Round 7 | TIANJIN UNION | 8 | 6♦x | ♦8 | -1 | -9 |
| -1.8 | Round 10 | BARAN | 9 | 4♠ | ♥6 | -5 | -2 |
| -1.9 | Round 7 | TIANJIN UNION | 7 | 4♠ | ♥4 | -1 | -6 |
| -2.1 | Round 15 | GERMANY JUNIORS | 27 | 3♥ | ♦2 | = | +0 |
| -2.2 | Round 3 | HAPPY BRIDGE | 29 | 3N | ♥K | +2 | +0 |
| -2.2 | Round 14 | GERMANY SENIORS 1 | 14 | 5♠ | ♥2 | +1 | -14 |
| -2.3 | Round 5 | TEXAN ACES | 18 | 4♠ | ♣3 | -1 | -5 |
| -2.3 | Round 8 | TIANJIN | 19 | 4♥ | ♣3 | -1 | -5 |
| -2.6 | Round 8 | TIANJIN | 20 | 4♠ | ♥K | = | +0 |
| -2.9 | Round 5 | TEXAN ACES | 11 | 3♠ | ♠2 | -1 | +2 |
| -2.9 | Round 5 | TEXAN ACES | 17 | 2♠ | ♦10 | = | -6 |
| -3.1 | Round 12 | JIANPING CONSTRUCTION | 27 | 4♥ | ♦Q | +1 | +5 |
| -3.8 | Round 14 | GERMANY SENIORS 1 | 11 | 3♥ | ♦4 | -2 | +0 |
| -4.2 | Round 5 | TEXAN ACES | 19 | 2♠ | ♣K | +1 | -6 |
| -5.0 | Round 15 | GERMANY JUNIORS | 30 | 4♥ | ♠9 | -1 | -11 |
| -6.5 | Round 5 | TEXAN ACES | 13 | 3N | ♠2 | +2 | -6 |
| -7.4 | Round 9 | FIREWORKS | 30 | 4♠ | ♣Q | = | -7 |
| -7.8 | Round 15 | GERMANY JUNIORS | 22 | 2♣x | ♣2 | -2 | -4 |
| -8.0 | Round 11 | SHANGHAI OCEAN | 12 | 3N | ♥7 | = | +1 |
| -8.8 | Round 12 | JIANPING CONSTRUCTION | 21 | 5♥x | ♦6 | -2 | -9 |
| -9.2 | Round 9 | FIREWORKS | 24 | 5♥ | ♠J | -1 | -12 |
| -9.7 | Round 5 | TEXAN ACES | 15 | 7♦ | ♠J | -1 | -14 |
| -10.7 | Round 10 | BARAN | 7 | 3N | ♦9 | +1 | -4 |
| -12.9 | Round 9 | FIREWORKS | 25 | 6♦x | ♠A | -3 | -14 |