CHU Yao-Ming · CHEN
423rank
-9.7Butler · 100 bds
-0.10per board
±4.1swing
+0.33vs par /bd · #198/672
-0.05adjusted /bd
by round
vs par split: bidding +0.13 · play -0.17
Strength of schedule: opponents averaged +0.05/bd (an average draw) → opponent-adjusted -0.05/bd
Card play — on target: opening leads 86.4% #210 of 671 · declarer play 55.6% #649 of 671 · defence 74.4% #613 of 672
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 86.4% (22) |
| Declarer play | · | 55.6% (9) |
| Defence | · | 74.4% (39) |
Opening leads by suit led: ♠ 80.0% (5) · ♥ 75.0% (8) · ♦ 100.0% (5) · ♣ 100.0% (4)
vs par by strain: a suit -0.04 (69)
vs par by level: part-score -0.34 (32) · game -0.16 (32) · slam +2.60 (5)
By role: declaring +0.19/bd (-2.90 vs par · 41) · defending -0.30/bd (+2.58 vs par · 59)
By vulnerability: vulnerable -0.85/bd (+0.12 vs par · 51) · not vulnerable +0.68/bd (+0.55 vs par · 49)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 2 | C.Chen | C.Endang – C.Yinong | Closed | 10 | +3.5 | +0.35 | +4.80 |
| Round 4 | C.Chen | J.Cao – G.Zan | Closed | 10 | +16.4 | +1.64 | +1.60 |
| Round 5 | C.Chen | J.Sveindal – N.Kvangraven | Closed | 10 | -12.9 | -1.29 | -0.60 |
| Round 6 | C.Chen | C.Chua – S.Hinge | Closed | 10 | -19.4 | -1.94 | -0.90 |
| Round 7 | C.Chen | M.Cao – R.Rong | Open | 10 | -17.6 | -1.76 | -1.10 |
| Round 8 | C.Chen | N.Van Der Gaast – D.Kruis | Closed | 10 | +15.8 | +1.58 | +1.70 |
| Round 9 | H.Yang | H.Yu – D.Wu | Open | 10 | +2.7 | +0.27 | +0.50 |
| Round 10 | H.Yang | W.Wang – S.Wu | Closed | 10 | +7.2 | +0.72 | +2.30 |
| Round 11 | C.Chen | X.Zhang – Z.Hu | Open | 10 | -12.3 | -1.23 | -1.00 |
| Round 13 | H.Yang | V.Aronov – A.Zobu | Closed | 10 | +6.9 | +0.69 | -4.00 |
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 |
|---|---|---|---|---|---|---|---|
| +11.1 | Round 4 | JIANPING CONSTRUCTION | 3 | 3N | ♥5 | -1 | +13 |
| +10.1 | Round 8 | CSO | 17 | 3N | ♥8 | -3 | +13 |
| +9.7 | Round 9 | LIAONING | 22 | 3N | ♣Q | -2 | +12 |
| +8.4 | Round 13 | POPOVA | 8 | 6♠ | ♦Q | = | -11 |
| +8.3 | Round 2 | SHANGHAI GOODWAY | 15 | 6♠ | ♠9 | -1 | +11 |
| +6.5 | Round 8 | CSO | 11 | 4♠x | ♥A | -1 | +9 |
| +5.5 | Round 13 | POPOVA | 6 | 3N | ♠4 | +1 | -11 |
| +5.3 | Round 6 | HINGE | 21 | 6♥ | ♣A | -1 | +11 |
| +5.1 | Round 9 | LIAONING | 29 | 1♠ | ♥K | +1 | +6 |
| +4.8 | Round 13 | POPOVA | 10 | 3N | ♥K | -1 | +6 |
| +4.4 | Round 10 | SHANGHAILVCHENG | 9 | 4♠x | ♥3 | -1 | +5 |
| +4.3 | Round 9 | LIAONING | 21 | 3N | ♦4 | +1 | +5 |
| +3.6 | Round 10 | SHANGHAILVCHENG | 1 | 2N | ♠9 | -3 | +6 |
| +3.4 | Round 4 | JIANPING CONSTRUCTION | 9 | 2♠ | ♣2 | +1 | +1 |
| +3.1 | Round 8 | CSO | 14 | 1N | ♠2 | -1 | +4 |
| +3.1 | Round 9 | LIAONING | 26 | 4♠ | ♦7 | -1 | +6 |
| +3.0 | Round 2 | SHANGHAI GOODWAY | 13 | 2♠ | ♣4 | = | -1 |
| +2.9 | Round 8 | CSO | 16 | 2♥ | ♣A | -2 | +2 |
| +2.8 | Round 2 | SHANGHAI GOODWAY | 11 | 3N | ♥4 | -1 | +5 |
| +2.8 | Round 11 | ANHUI | 15 | 5♣x | ♦A | -1 | +7 |
| +2.7 | Round 4 | JIANPING CONSTRUCTION | 5 | 3N | ♦5 | -2 | +0 |
| +2.6 | Round 8 | CSO | 20 | 4♠ | ♥K | = | +0 |
| +2.3 | Round 5 | DENNOR | 18 | 4♠ | ♣A | -1 | +5 |
| +2.3 | Round 10 | SHANGHAILVCHENG | 8 | 2♠ | ♦6 | +1 | +6 |
| +2.2 | Round 4 | JIANPING CONSTRUCTION | 1 | 5♦ | ♥6 | -2 | +5 |
| +2.1 | Round 2 | SHANGHAI GOODWAY | 16 | 2N | ♠10 | = | +0 |
| +2.0 | Round 11 | ANHUI | 14 | 5♦ | ♥K | = | -14 |
| +1.9 | Round 7 | ZHANG | 7 | 4♠ | ♥6 | -1 | +6 |
| +1.8 | Round 7 | ZHANG | 3 | 2♦ | ♣5 | -1 | +10 |
| +1.6 | Round 2 | SHANGHAI GOODWAY | 18 | 4♠ | ♥A | -1 | +4 |
| +1.6 | Round 5 | DENNOR | 20 | 4♥ | ♣2 | +1 | +0 |
| +1.5 | Round 13 | POPOVA | 5 | 3N | ♠5 | +3 | -12 |
| +1.4 | Round 5 | DENNOR | 15 | 3N | ♠J | +3 | +11 |
| +1.4 | Round 5 | DENNOR | 17 | 2N | ♠4 | -1 | +4 |
| +1.3 | Round 8 | CSO | 15 | 1N | ♣3 | +1 | -1 |
| +1.2 | Round 11 | ANHUI | 19 | 4♠ | ♣J | +1 | +1 |
| +1.1 | Round 6 | HINGE | 26 | 4♠ | ♥Q | = | +5 |
| +1.0 | Round 10 | SHANGHAILVCHENG | 4 | 1N | ♣9 | -1 | +5 |
| +0.9 | Round 2 | SHANGHAI GOODWAY | 19 | 3♦ | ♠Q | +1 | +0 |
| +0.8 | Round 13 | POPOVA | 3 | 3N | ♥7 | +2 | +0 |
| +0.6 | Round 9 | LIAONING | 28 | 3N | ♠A | +1 | -5 |
| +0.5 | Round 4 | JIANPING CONSTRUCTION | 6 | 3♠ | ♣10 | +1 | +10 |
| +0.5 | Round 5 | DENNOR | 11 | 3♣ | ♠6 | -1 | -4 |
| +0.5 | Round 10 | SHANGHAILVCHENG | 6 | 4♠ | ♣A | = | +0 |
| +0.3 | Round 4 | JIANPING CONSTRUCTION | 8 | 5♦ | ♦A | -2 | -1 |
| +0.3 | Round 10 | SHANGHAILVCHENG | 5 | 4♠ | ♦9 | +2 | +11 |
| +0.2 | Round 6 | HINGE | 27 | 4♥ | ♦K | -1 | +5 |
| +0.1 | Round 4 | JIANPING CONSTRUCTION | 2 | 3N | ♠10 | +1 | +0 |
| +0.1 | Round 11 | ANHUI | 12 | 3♥ | ♥10 | -4 | +10 |
| +0.1 | Round 11 | ANHUI | 20 | 3N | ♦6 | +3 | +13 |
| -0.0 | Round 6 | HINGE | 28 | 3N | ♣2 | +2 | +0 |
| +0.0 | Round 10 | SHANGHAILVCHENG | 10 | 2♠ | ♣5 | = | +0 |
| -0.1 | Round 7 | ZHANG | 1 | 4♥ | ♦8 | = | -1 |
| -0.1 | Round 7 | ZHANG | 9 | 4♥ | ♣6 | +1 | -11 |
| -0.2 | Round 2 | SHANGHAI GOODWAY | 20 | 3N | ♠4 | +3 | +13 |
| -0.2 | Round 10 | SHANGHAILVCHENG | 7 | 1N | ♦9 | = | -9 |
| -0.4 | Round 4 | JIANPING CONSTRUCTION | 7 | 3♣ | ♥A | = | +1 |
| -0.4 | Round 6 | HINGE | 30 | 3N | ♠3 | -1 | -5 |
| -0.5 | Round 5 | DENNOR | 16 | 2♠ | ♦6 | +1 | +0 |
| -0.7 | Round 7 | ZHANG | 10 | 3♥ | ♣Q | = | +0 |
| -0.8 | Round 4 | JIANPING CONSTRUCTION | 10 | Pass | -3 | ||
| -0.8 | Round 7 | ZHANG | 4 | 4♥ | ♠9 | +1 | +0 |
| -0.9 | Round 7 | ZHANG | 6 | 4♥ | ♥J | +1 | +0 |
| -1.0 | Round 7 | ZHANG | 2 | 2♠ | ♠5 | -1 | +1 |
| -1.0 | Round 9 | LIAONING | 24 | 3N | ♦4 | +1 | +5 |
| -1.0 | Round 13 | POPOVA | 9 | 4♠ | ♠4 | +2 | -1 |
| -1.2 | Round 10 | SHANGHAILVCHENG | 3 | 2♠ | ♠9 | +2 | -1 |
| -1.3 | Round 13 | POPOVA | 7 | 4♥ | ♠9 | +1 | +0 |
| -1.4 | Round 6 | HINGE | 29 | 2♦ | ♦7 | = | -1 |
| -1.5 | Round 8 | CSO | 18 | 2♠ | ♥5 | = | +0 |
| -1.8 | Round 2 | SHANGHAI GOODWAY | 12 | 3♥ | ♣2 | = | +0 |
| -1.8 | Round 8 | CSO | 13 | 4♠ | ♠2 | +1 | -8 |
| -2.1 | Round 9 | LIAONING | 23 | 1N | ♥4 | +3 | -2 |
| -2.1 | Round 11 | ANHUI | 17 | 2♦ | ♣Q | = | +1 |
| -2.2 | Round 5 | DENNOR | 12 | 2♦ | ♦10 | -2 | -2 |
| -2.2 | Round 11 | ANHUI | 13 | 2♥ | ♣3 | +1 | -2 |
| -2.2 | Round 13 | POPOVA | 1 | 4♠ | ♥Q | +1 | -1 |
| -2.6 | Round 8 | CSO | 12 | 2♠ | ♦4 | +1 | +0 |
| -2.7 | Round 4 | JIANPING CONSTRUCTION | 4 | 4♦ | ♣Q | +1 | -10 |
| -2.8 | Round 6 | HINGE | 22 | 3♠ | ♦A | +2 | -7 |
| -3.0 | Round 11 | ANHUI | 18 | 5♣ | ♠5 | -2 | -5 |
| -3.2 | Round 5 | DENNOR | 19 | 2♥ | ♣6 | +2 | -2 |
| -3.3 | Round 6 | HINGE | 25 | 3♥ | ♦4 | = | +0 |
| -3.3 | Round 9 | LIAONING | 27 | 3♠ | ♦9 | -2 | -6 |
| -3.5 | Round 10 | SHANGHAILVCHENG | 2 | 5♦ | ♥2 | = | +0 |
| -4.4 | Round 9 | LIAONING | 30 | 4♠x | ♥Q | -1 | -6 |
| -4.4 | Round 11 | ANHUI | 11 | 3♦ | ♦5 | = | -8 |
| -4.6 | Round 5 | DENNOR | 14 | 3♣ | ♠Q | = | -6 |
| -4.6 | Round 13 | POPOVA | 4 | 4♠ | ♠J | +1 | +0 |
| -4.8 | Round 8 | CSO | 19 | 2N | ♠J | +2 | -2 |
| -5.0 | Round 13 | POPOVA | 2 | 3♥ | ♣2 | +2 | -10 |
| -6.1 | Round 2 | SHANGHAI GOODWAY | 17 | 3♦ | ♠7 | +3 | +1 |
| -6.8 | Round 11 | ANHUI | 16 | 6♠ | ♣9 | -1 | -13 |
| -7.1 | Round 2 | SHANGHAI GOODWAY | 14 | 6♦ | ♥5 | +1 | +15 |
| -8.3 | Round 6 | HINGE | 24 | 3N | ♦Q | = | -7 |
| -8.7 | Round 7 | ZHANG | 8 | 5♦x | ♥Q | = | -6 |
| -9.0 | Round 7 | ZHANG | 5 | 5♠x | ♦Q | = | -10 |
| -9.3 | Round 9 | LIAONING | 25 | 3N | ♦5 | +1 | -10 |
| -9.6 | Round 5 | DENNOR | 13 | 3N | ♠4 | -3 | -12 |
| -9.8 | Round 6 | HINGE | 23 | 4♥ | ♣A | = | -10 |