QIU Bo · BEIJING MANGUANFENGYUN
410rank
-5.8Butler · 90 bds
-0.06per board
±4.3swing
+0.07vs par /bd · #296/672
-0.21adjusted /bd
by round
vs par split: bidding +0.22 · play +0.59
Strength of schedule: opponents averaged -0.14/bd (an easy draw) → opponent-adjusted -0.21/bd
Card play — on target: opening leads 88.9% #132 of 671 · declarer play 83.3% #177 of 671 · defence 90.3% #126 of 672
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 88.9% (18) |
| Declarer play | · | 83.3% (12) |
| Defence | · | 90.3% (31) |
Opening leads by suit led: ♠ 100.0% (4) · ♥ 80.0% (5) · ♦ 100.0% (5) · ♣ 75.0% (4)
vs par by strain: a suit +0.81 (59)
vs par by level: part-score +0.39 (23) · game +0.78 (32) · slam +3.50 (4)
By role: declaring +0.18/bd (-1.20 vs par · 45) · defending -0.31/bd (+1.33 vs par · 45)
By vulnerability: vulnerable -0.56/bd (-0.81 vs par · 47) · not vulnerable +0.48/bd (+1.02 vs par · 43)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 3 | J.Liu | T.Yongchareon – P.Maijarern | Open | 10 | -6.3 | -0.63 | -2.30 |
| Round 4 | L.Wei | J.Ma – H.Zheng | Closed | 10 | -10.7 | -1.07 | -1.00 |
| Round 5 | L.Wei | H.Uman – A.Gonzales Noguera | Closed | 10 | +23.4 | +2.34 | +2.80 |
| Round 6 | L.Wei | S.Wang – J.Shen | Closed | 10 | +4.4 | +0.44 | +1.40 |
| Round 7 | L.Wei | B.Strater – U.Kratz | Open | 10 | -7.2 | -0.72 | +0.60 |
| Round 8 | J.Liu | G.Ghanem – N.Hattar-Ghanem | Closed | 10 | +3.4 | +0.34 | +0.00 |
| Round 9 | L.Wei | Y.Shao – J.Hu | Open | 10 | -3.1 | -0.31 | -1.00 |
| Round 10 | W.Yang | P.Silabhusiddhi – P.Nimityongskul | Open | 10 | -5.4 | -0.54 | +0.50 |
| Round 12 | J.Liu | M.Dix – M.Parnis-England | Open | 10 | -4.3 | -0.43 | -0.40 |
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 |
|---|---|---|---|---|---|---|---|
| +12.6 | Round 12 | SECOND CHANCE | 23 | 2♠x | ♥3 | -3 | +12 |
| +9.9 | Round 10 | TSEP | 10 | 3N | ♣K | +1 | +11 |
| +9.7 | Round 5 | SOCMA | 15 | 6♥ | ♠K | -1 | +14 |
| +9.2 | Round 3 | THAILAND/CBLT | 26 | 4♦ | ♠A | = | +10 |
| +8.3 | Round 9 | PEKING UNIVERSITY | 22 | 4♠ | ♦6 | +2 | +6 |
| +6.6 | Round 12 | SECOND CHANCE | 28 | 4♠ | ♦K | = | +5 |
| +6.4 | Round 5 | SOCMA | 20 | 5♥x | ♣A | = | +5 |
| +5.3 | Round 6 | TIANJIN | 21 | 6♥ | ♣A | -1 | +11 |
| +5.3 | Round 12 | SECOND CHANCE | 21 | 5♦x | ♠A | -1 | +5 |
| +5.2 | Round 5 | SOCMA | 13 | 3N | ♣Q | = | +5 |
| +5.2 | Round 9 | PEKING UNIVERSITY | 27 | 2♦x | ♥A | = | +8 |
| +5.0 | Round 6 | TIANJIN | 25 | 4♥ | ♦6 | -2 | +8 |
| +4.6 | Round 8 | PETRA | 11 | 3N | ♦J | +1 | +4 |
| +4.5 | Round 10 | TSEP | 1 | 1Nx | ♣5 | = | +6 |
| +3.9 | Round 3 | THAILAND/CBLT | 30 | 3N | ♦K | +1 | -5 |
| +3.9 | Round 6 | TIANJIN | 30 | 1N | ♠2 | +1 | +0 |
| +3.7 | Round 8 | PETRA | 15 | 4♥ | ♦Q | -1 | +6 |
| +2.9 | Round 5 | SOCMA | 11 | 2♠ | ♦A | -1 | -2 |
| +2.4 | Round 5 | SOCMA | 17 | 1♠ | ♣3 | = | +5 |
| +2.3 | Round 5 | SOCMA | 18 | 4♠ | ♣3 | -1 | +5 |
| +2.2 | Round 4 | TIANJIN UNION | 1 | 5♦x | ♥8 | -1 | +5 |
| +2.1 | Round 8 | PETRA | 14 | 3♥ | ♣2 | = | +1 |
| +2.0 | Round 6 | TIANJIN | 26 | 4♠ | ♦A | +1 | +5 |
| +1.9 | Round 4 | TIANJIN UNION | 10 | 2♠ | ♣J | -1 | -1 |
| +1.9 | Round 8 | PETRA | 18 | 1N | ♠J | +1 | +0 |
| +1.3 | Round 12 | SECOND CHANCE | 30 | 5♣ | ♦A | -1 | +5 |
| +1.2 | Round 5 | SOCMA | 16 | 2♦ | ♥2 | = | +2 |
| +1.2 | Round 10 | TSEP | 5 | 3N | ♣J | +2 | +11 |
| +1.0 | Round 4 | TIANJIN UNION | 5 | 1N | ♠4 | -1 | -1 |
| +0.9 | Round 8 | PETRA | 13 | 4♠ | ♦7 | +2 | +7 |
| +0.9 | Round 9 | PEKING UNIVERSITY | 24 | 4♥ | ♦4 | = | -5 |
| +0.8 | Round 5 | SOCMA | 12 | 1♠ | ♦K | = | +1 |
| +0.8 | Round 7 | GERMANY SENIORS 1 | 5 | 6♦ | ♠3 | -1 | +3 |
| +0.8 | Round 7 | GERMANY SENIORS 1 | 9 | 4♥ | ♦J | +2 | -11 |
| +0.8 | Round 10 | TSEP | 3 | 1N | ♠6 | -2 | +1 |
| +0.7 | Round 3 | THAILAND/CBLT | 22 | 3N | ♥2 | +1 | -5 |
| +0.6 | Round 8 | PETRA | 17 | 3N | ♥9 | = | -6 |
| +0.5 | Round 3 | THAILAND/CBLT | 27 | 4♠x | ♣2 | -1 | -1 |
| +0.5 | Round 10 | TSEP | 6 | 4♠ | ♣A | = | +0 |
| +0.3 | Round 4 | TIANJIN UNION | 8 | 5♦ | ♠A | -2 | -1 |
| +0.2 | Round 6 | TIANJIN | 27 | 4♥ | ♦K | -1 | +5 |
| +0.2 | Round 7 | GERMANY SENIORS 1 | 4 | 3N | ♠4 | +1 | +1 |
| +0.2 | Round 9 | PEKING UNIVERSITY | 23 | 1N | ♠Q | +1 | +0 |
| +0.2 | Round 12 | SECOND CHANCE | 25 | 3N | ♦A | +1 | -5 |
| +0.1 | Round 7 | GERMANY SENIORS 1 | 6 | 4♥ | ♥6 | = | +1 |
| -0.0 | Round 6 | TIANJIN | 28 | 3N | ♠2 | +2 | +0 |
| -0.1 | Round 7 | GERMANY SENIORS 1 | 1 | 4♠ | ♣2 | = | -1 |
| -0.1 | Round 7 | GERMANY SENIORS 1 | 3 | 3♣ | ♦7 | = | +9 |
| -0.2 | Round 10 | TSEP | 7 | 1N | ♦7 | = | -9 |
| -0.3 | Round 3 | THAILAND/CBLT | 21 | 2N | ♣9 | = | -1 |
| -0.4 | Round 9 | PEKING UNIVERSITY | 28 | 5♦ | ♠A | +1 | +5 |
| -0.5 | Round 3 | THAILAND/CBLT | 29 | 5♦ | ♠5 | = | +2 |
| -0.5 | Round 9 | PEKING UNIVERSITY | 30 | 4♥ | ♦10 | -2 | +1 |
| -0.6 | Round 4 | TIANJIN UNION | 7 | 1N | ♥2 | +1 | +1 |
| -0.9 | Round 4 | TIANJIN UNION | 2 | 3N | ♣2 | +2 | -1 |
| -1.0 | Round 7 | GERMANY SENIORS 1 | 2 | 1N | ♦8 | = | +1 |
| -1.1 | Round 6 | TIANJIN | 22 | 3♣ | ♦9 | -3 | -6 |
| -1.1 | Round 8 | PETRA | 16 | 2♠ | ♥A | +1 | +0 |
| -1.2 | Round 6 | TIANJIN | 23 | 3♥ | ♠6 | +1 | -1 |
| -1.3 | Round 3 | THAILAND/CBLT | 23 | 4♠ | ♥K | = | +1 |
| -1.3 | Round 4 | TIANJIN UNION | 9 | 2♥ | ♥A | -1 | -4 |
| -1.4 | Round 6 | TIANJIN | 29 | 2♦ | ♦7 | = | -1 |
| -1.5 | Round 4 | TIANJIN UNION | 3 | 3N | ♥5 | +1 | +1 |
| -1.6 | Round 7 | GERMANY SENIORS 1 | 8 | 5♠x | ♦A | -1 | +5 |
| -1.6 | Round 12 | SECOND CHANCE | 29 | 2♥ | ♠A | = | +0 |
| -1.9 | Round 8 | PETRA | 12 | 3N | ♣10 | -1 | -5 |
| -2.5 | Round 7 | GERMANY SENIORS 1 | 10 | 3♣ | ♦10 | -2 | -2 |
| -2.6 | Round 5 | SOCMA | 19 | 2♥ | ♦7 | +1 | -1 |
| -2.6 | Round 8 | PETRA | 20 | 4♠ | ♥K | = | +0 |
| -2.6 | Round 10 | TSEP | 8 | 4♠ | ♦A | -1 | +1 |
| -3.1 | Round 4 | TIANJIN UNION | 4 | 4♦ | ♣Q | = | -10 |
| -3.1 | Round 9 | PEKING UNIVERSITY | 26 | 4♠ | ♥2 | -1 | -6 |
| -3.6 | Round 12 | SECOND CHANCE | 22 | 4♦ | ♥10 | -1 | -5 |
| -3.7 | Round 9 | PEKING UNIVERSITY | 21 | 3N | ♦J | = | -5 |
| -3.7 | Round 10 | TSEP | 4 | 3♣ | ♥J | -1 | -1 |
| -3.8 | Round 7 | GERMANY SENIORS 1 | 7 | 3♠ | ♥3 | = | +0 |
| -4.5 | Round 9 | PEKING UNIVERSITY | 25 | 3N | ♠6 | -2 | -8 |
| -4.8 | Round 8 | PETRA | 19 | 4♥ | ♣3 | -2 | -7 |
| -4.8 | Round 12 | SECOND CHANCE | 24 | 3N | ♠3 | -2 | +1 |
| -4.9 | Round 5 | SOCMA | 14 | 1N | ♦K | +1 | -6 |
| -5.5 | Round 9 | PEKING UNIVERSITY | 29 | 1N | ♦4 | +1 | -6 |
| -5.6 | Round 3 | THAILAND/CBLT | 24 | 4♥ | ♠8 | -2 | -6 |
| -6.3 | Round 3 | THAILAND/CBLT | 28 | 4♥ | ♦6 | -1 | -11 |
| -6.6 | Round 3 | THAILAND/CBLT | 25 | 1Nx | ♠8 | +1 | -7 |
| -7.6 | Round 10 | TSEP | 2 | 4♦x | ♦7 | +1 | -5 |
| -8.2 | Round 10 | TSEP | 9 | 4♥x | ♣9 | = | -10 |
| -8.3 | Round 6 | TIANJIN | 24 | 3N | ♠K | = | -7 |
| -8.7 | Round 4 | TIANJIN UNION | 6 | 4♠ | ♣10 | = | +1 |
| -9.8 | Round 12 | SECOND CHANCE | 26 | 3Nx | ♣3 | -2 | -8 |
| -10.5 | Round 12 | SECOND CHANCE | 27 | 6♥x | ♠A | -2 | -14 |