ZHOU Qinghong · JIANGSU
180rank
+31.5Butler · 90 bds
+0.35per board
±3.9swing
+0.34vs par /bd · #195/672
+0.20adjusted /bd
by round
vs par split: bidding +1.45 · play -0.45
Strength of schedule: opponents averaged -0.14/bd (an easy draw) → opponent-adjusted +0.20/bd
Card play — on target: opening leads 75.0% #490 of 671 · declarer play 94.1% #25 of 671 · defence 91.3% #96 of 672
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 75.0% (8) |
| Declarer play | · | 94.1% (17) |
| Defence | · | 91.3% (23) |
Opening leads by suit led: ♠ 100.0% (1) · ♥ 100.0% (3) · ♦ 100.0% (1) · ♣ 33.3% (3)
vs par by strain: a suit +1.00 (58)
vs par by level: part-score +1.92 (24) · game -0.55 (29) · slam +5.60 (5)
By role: declaring +0.63/bd (-1.28 vs par · 53) · defending -0.05/bd (+2.68 vs par · 37)
By vulnerability: vulnerable +0.42/bd (-0.50 vs par · 54) · not vulnerable +0.25/bd (+1.61 vs par · 36)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | J.Li | B.Morris – B.Jacobus | Open | 10 | +7.5 | +0.75 | -0.20 |
| Round 3 | J.Qian | D.Korbel – D.Piafsky | Open | 10 | -3.2 | -0.32 | +1.50 |
| Round 6 | J.Qian | Z.Chen – J.Lin | Closed | 10 | +6.0 | +0.60 | -0.50 |
| Round 7 | J.Qian | W.Zhu – X.Lin | Closed | 10 | +4.4 | +0.44 | -0.60 |
| Round 8 | J.Qian | H.Kondoch – F.Zimmermann | Open | 10 | +5.1 | +0.51 | +0.00 |
| Round 11 | J.Qian | R.Parasian Tobing – T.Asbi | Open | 10 | -9.3 | -0.93 | -0.80 |
| Round 12 | J.Qian | M.Barel – Y.Zack | Open | 10 | -0.5 | -0.05 | +1.00 |
| Round 13 | J.Qian | S.Lu – Y.Tu | Open | 10 | +8.3 | +0.83 | +4.10 |
| Round 14 | J.Qian | F.Gong – S.Hu | Open | 10 | +13.2 | +1.32 | -1.40 |
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 |
|---|---|---|---|---|---|---|---|
| +12.4 | Round 1 | LEONINA | 3 | 6♣ | ♠7 | = | +12 |
| +8.4 | Round 13 | RIGHT CALL | 10 | 3N | ♠2 | = | +10 |
| +7.7 | Round 14 | CHINESE TAIPEI LADIES | 14 | 6♠ | ♥9 | = | -10 |
| +6.8 | Round 13 | RIGHT CALL | 8 | 6♠ | ♦Q | -1 | +17 |
| +6.3 | Round 12 | HERBST | 21 | 4♥ | ♦6 | = | +8 |
| +5.8 | Round 7 | TAICANG BA | 5 | 4♠ | ♦Q | +1 | +6 |
| +5.4 | Round 12 | HERBST | 24 | 3♠ | ♣7 | = | +0 |
| +4.9 | Round 3 | BARAN | 27 | 3N | ♠Q | -3 | +7 |
| +4.8 | Round 8 | GERMANY JUNIORS | 16 | 1N | ♦10 | = | +6 |
| +4.7 | Round 6 | XIAMEN | 21 | 4♥ | ♣A | +1 | +0 |
| +4.5 | Round 8 | GERMANY JUNIORS | 19 | 3♥ | ♠J | +1 | +2 |
| +4.5 | Round 13 | RIGHT CALL | 6 | 6♣ | ♥6 | -1 | +14 |
| +4.4 | Round 1 | LEONINA | 6 | 2♠ | ♣6 | = | +5 |
| +4.3 | Round 11 | INDONESIA OPEN | 14 | 3N | ♠4 | +3 | -13 |
| +4.2 | Round 3 | BARAN | 26 | 5♣ | ♦A | +1 | +8 |
| +4.2 | Round 11 | INDONESIA OPEN | 11 | 3N | ♥2 | +2 | +1 |
| +3.8 | Round 11 | INDONESIA OPEN | 13 | 2♥ | ♣4 | -1 | +5 |
| +3.7 | Round 8 | GERMANY JUNIORS | 15 | 2♠ | ♦7 | -1 | +6 |
| +3.6 | Round 13 | RIGHT CALL | 4 | 4♠ | ♣J | = | -1 |
| +3.2 | Round 12 | HERBST | 26 | 3♥ | ♥2 | = | +0 |
| +2.4 | Round 14 | CHINESE TAIPEI LADIES | 16 | 4♠ | ♥6 | = | +0 |
| +2.3 | Round 3 | BARAN | 23 | 4♠ | ♥K | +1 | +0 |
| +2.3 | Round 6 | XIAMEN | 25 | 3♦x | ♥A | -1 | -1 |
| +2.2 | Round 13 | RIGHT CALL | 1 | 4♠ | ♦3 | +1 | +1 |
| +2.1 | Round 6 | XIAMEN | 30 | 3N | ♥2 | -2 | +6 |
| +2.1 | Round 14 | CHINESE TAIPEI LADIES | 18 | 2♥ | ♥4 | +2 | +6 |
| +2.1 | Round 14 | CHINESE TAIPEI LADIES | 20 | 5♣ | ♦6 | = | -1 |
| +1.8 | Round 12 | HERBST | 28 | 2♠ | ♠5 | +3 | +6 |
| +1.6 | Round 7 | TAICANG BA | 8 | 6♠ | ♣A | -2 | -5 |
| +1.4 | Round 1 | LEONINA | 9 | 3N | ♠7 | +2 | +0 |
| +1.4 | Round 6 | XIAMEN | 29 | 2♦ | ♦7 | = | +1 |
| +1.3 | Round 3 | BARAN | 29 | 5♦ | ♣A | +1 | -1 |
| +1.3 | Round 11 | INDONESIA OPEN | 17 | 2♠ | ♣Q | -1 | +4 |
| +1.3 | Round 14 | CHINESE TAIPEI LADIES | 11 | 2♣ | ♥J | = | +5 |
| +1.2 | Round 1 | LEONINA | 1 | 3♦ | ♣K | +1 | +8 |
| +1.0 | Round 6 | XIAMEN | 22 | 1♠ | ♦A | +2 | +6 |
| +1.0 | Round 7 | TAICANG BA | 2 | 1N | ♦8 | = | -1 |
| +0.9 | Round 7 | TAICANG BA | 6 | 4♥ | ♥6 | +1 | +0 |
| +0.9 | Round 8 | GERMANY JUNIORS | 13 | 4♠ | ♥A | +2 | +7 |
| +0.9 | Round 11 | INDONESIA OPEN | 12 | 2♠ | ♥3 | +2 | +10 |
| +0.8 | Round 12 | HERBST | 25 | 3N | ♦2 | +2 | +6 |
| +0.6 | Round 1 | LEONINA | 2 | 4♠x | ♥A | -2 | +0 |
| +0.6 | Round 8 | GERMANY JUNIORS | 17 | 3N | ♥7 | = | -6 |
| +0.6 | Round 14 | CHINESE TAIPEI LADIES | 13 | 4♠ | ♣K | +2 | -6 |
| +0.5 | Round 12 | HERBST | 23 | 3N | ♠K | -1 | +6 |
| +0.5 | Round 14 | CHINESE TAIPEI LADIES | 17 | 1N | ♥4 | +1 | +0 |
| +0.4 | Round 8 | GERMANY JUNIORS | 14 | 1N | ♦6 | = | -1 |
| +0.3 | Round 3 | BARAN | 21 | 2N | ♣10 | = | +1 |
| +0.3 | Round 3 | BARAN | 25 | 2♣x | ♣5 | -1 | +0 |
| +0.1 | Round 7 | TAICANG BA | 1 | 4♥ | ♦4 | = | +1 |
| +0.1 | Round 11 | INDONESIA OPEN | 20 | 3N | ♠5 | +3 | +13 |
| +0.0 | Round 6 | XIAMEN | 28 | 3N | ♥9 | +2 | +0 |
| +0.0 | Round 13 | RIGHT CALL | 9 | 4♠ | ♣6 | +1 | +0 |
| -0.2 | Round 1 | LEONINA | 4 | 2♠ | ♠4 | -1 | -1 |
| -0.2 | Round 6 | XIAMEN | 27 | 4♥ | ♦K | -1 | -5 |
| -0.2 | Round 7 | TAICANG BA | 4 | 3N | ♣5 | +1 | -1 |
| -0.3 | Round 7 | TAICANG BA | 10 | 2♥ | ♦K | = | -1 |
| -0.5 | Round 14 | CHINESE TAIPEI LADIES | 19 | 1N | ♥3 | +1 | -6 |
| -0.6 | Round 6 | XIAMEN | 23 | 2♥ | ♦4 | = | -1 |
| -0.7 | Round 1 | LEONINA | 10 | 4♥ | ♠4 | +1 | -4 |
| -0.7 | Round 3 | BARAN | 22 | 3N | ♥Q | +1 | +5 |
| -0.8 | Round 7 | TAICANG BA | 9 | 4♥ | ♣6 | +2 | +11 |
| -0.8 | Round 13 | RIGHT CALL | 3 | 3N | ♥7 | +2 | +0 |
| -1.3 | Round 12 | HERBST | 30 | 4♥ | ♦K | -1 | -5 |
| -1.4 | Round 8 | GERMANY JUNIORS | 11 | 4♣ | ♥A | +1 | -4 |
| -1.4 | Round 14 | CHINESE TAIPEI LADIES | 15 | 4♦ | ♠6 | -1 | -4 |
| -1.5 | Round 13 | RIGHT CALL | 5 | 3N | ♠6 | +3 | +12 |
| -1.6 | Round 11 | INDONESIA OPEN | 18 | 4♣ | ♠4 | -1 | -4 |
| -1.6 | Round 14 | CHINESE TAIPEI LADIES | 12 | 3♠ | ♥4 | -1 | +2 |
| -1.8 | Round 1 | LEONINA | 5 | 4♠ | ♥A | -1 | -5 |
| -1.8 | Round 6 | XIAMEN | 24 | 3N | ♠K | -1 | -5 |
| -1.8 | Round 7 | TAICANG BA | 3 | 1N | ♠2 | -1 | -10 |
| -1.9 | Round 7 | TAICANG BA | 7 | 4♠ | ♥4 | -1 | -6 |
| -2.4 | Round 8 | GERMANY JUNIORS | 18 | 2♠ | ♣3 | -1 | -4 |
| -2.6 | Round 8 | GERMANY JUNIORS | 20 | 4♠ | ♥K | = | +0 |
| -2.9 | Round 6 | XIAMEN | 26 | 4♠ | ♥Q | +2 | -6 |
| -2.9 | Round 11 | INDONESIA OPEN | 15 | 4♠ | ♣A | -1 | +2 |
| -3.1 | Round 12 | HERBST | 27 | 4♥ | ♦Q | +1 | +5 |
| -3.3 | Round 1 | LEONINA | 8 | 3N | ♠Q | -1 | -4 |
| -3.3 | Round 3 | BARAN | 30 | 3N | ♠J | = | +6 |
| -3.3 | Round 13 | RIGHT CALL | 2 | 4♥ | ♠7 | = | +1 |
| -3.4 | Round 8 | GERMANY JUNIORS | 12 | 3N | ♣10 | -2 | -6 |
| -5.7 | Round 12 | HERBST | 29 | 1Nx | ♠7 | -1 | -7 |
| -6.2 | Round 3 | BARAN | 24 | 3N | ♣K | = | -6 |
| -6.3 | Round 3 | BARAN | 28 | 3N | ♠4 | +1 | -5 |
| -6.5 | Round 1 | LEONINA | 7 | 4♥ | ♠4 | -1 | -13 |
| -6.8 | Round 11 | INDONESIA OPEN | 16 | 6N | ♠9 | -1 | -13 |
| -8.4 | Round 12 | HERBST | 22 | 3N | ♥5 | +4 | -9 |
| -11.6 | Round 13 | RIGHT CALL | 7 | 4♥ | ♠9 | -1 | -13 |
| -12.6 | Round 11 | INDONESIA OPEN | 19 | 3N | ♥A | -2 | -13 |