ZHAO Chen · ZHAO
vs par split: bidding +0.87 · play +0.09
Strength of schedule: opponents averaged -0.04/bd (an average draw) → opponent-adjusted -0.79/bd
Card play — on target: opening leads 80.0% · declarer play 72.7% · defence 91.5%
Bidding activity — not a pass: 37.0% (78/211)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 85.7% (7) | 77.8% (18) |
| Declarer play | 100.0% (1) | 70.0% (10) |
| Defence | 90.9% (11) | 91.7% (36) |
Opening leads by suit led: ♠ 71.4% (7) · ♥ 80.0% (5) · ♦ 71.4% (7) · ♣ 100.0% (6)
vs par by strain: NT -0.39 (18) · a suit +1.42 (52)
vs par by level: part-score -0.29 (17) · game +0.43 (44) · slam +5.89 (9)
By role: declaring -0.22/bd (-2.00 vs par · 23) · defending -1.01/bd (+2.40 vs par · 47)
By vulnerability: vulnerable -0.65/bd (+1.03 vs par · 35) · not vulnerable -0.85/bd (+0.89 vs par · 35)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round of 64 | J.Liu | D.Bogucki – A.Twardowski | Open | 14 | +10.1 | +0.72 | -1.29 |
| Round of 64 | J.Liu | L.Sztyrak – J.Russyan | Open | 14 | +10.7 | +0.76 | +2.36 |
| Round of 64 | J.Liu | J.Russyan – L.Sztyrak | Open | 14 | -18.4 | -1.31 | +1.71 |
| Round of 32 | J.Liu | C.Compton – M.Bartusek | Open | 14 | -7.4 | -0.53 | +2.14 |
| Round of 32 | J.Liu | J.Kranyak – V.Demuy | Closed | 14 | -47.5 | -3.39 | -0.14 |
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 |
|---|---|---|---|---|---|---|---|
| +9.0 | Round of 32 | SILVER SURFERS | 12 | 6♠ | ♦5 | -1 | +14 |
| +7.1 | Round of 64 | OMNIBUS | 28 | 4♠x | ♣3 | -1 | +11 |
| +6.2 | Round of 64 | OMNIBUS | 12 | 3NT | ♥7 | -2 | +7 |
| +5.6 | Round of 64 | OMNIBUS | 8 | 4♥ | ♦7 | -1 | +8 |
| +5.4 | Round of 32 | SILVER SURFERS | 1 | 6♣ | ♠A | -1 | +14 |
| +5.4 | Round of 32 | SILVER SURFERS | 21 | 4♠ | ♣4 | = | +7 |
| +5.1 | Round of 32 | SILVER SURFERS | 7 | 3♠ | ♦2 | +1 | +10 |
| +4.7 | Round of 64 | OMNIBUS | 25 | 5♣ | ♠T | -2 | +7 |
| +4.6 | Round of 32 | SILVER SURFERS | 22 | 3NT | ♦3 | +1 | +4 |
| +4.4 | Round of 64 | OMNIBUS | 3 | 3NT | ♠J | -1 | +6 |
| +4.0 | Round of 64 | OMNIBUS | 20 | 4♥ | ♠T | = | +10 |
| +4.0 | Round of 64 | OMNIBUS | 43 | 3NT | ♣2 | -1 | +11 |
| +3.6 | Round of 32 | SILVER SURFERS | 19 | 4♥ | ♠A | -2 | +6 |
| +3.4 | Round of 64 | OMNIBUS | 50 | 4♥x | ♠7 | = | +9 |
| +3.3 | Round of 64 | OMNIBUS | 15 | 3♦ | ♠6 | -2 | -1 |
| +3.2 | Round of 64 | OMNIBUS | 11 | 4♥ | ♣5 | = | +0 |
| +2.0 | Round of 64 | OMNIBUS | 4 | 3NT | ♥J | = | +0 |
| +1.8 | Round of 64 | OMNIBUS | 46 | 4♥ | ♥6 | +2 | +11 |
| +1.8 | Round of 32 | SILVER SURFERS | 4 | 4♥ | ♠6 | -1 | +12 |
| +1.5 | Round of 64 | OMNIBUS | 51 | 4♥ | ♦A | -2 | -2 |
| +1.4 | Round of 32 | SILVER SURFERS | 13 | 3NT | ♥A | -2 | +7 |
| +1.3 | Round of 64 | OMNIBUS | 54 | 2♠ | ♣A | -1 | +0 |
| +0.9 | Round of 64 | OMNIBUS | 9 | 2♥ | ♠8 | +2 | -6 |
| +0.9 | Round of 32 | SILVER SURFERS | 14 | 2♠ | ♣6 | +2 | +2 |
| +0.7 | Round of 64 | OMNIBUS | 23 | 3♦ | ♥K | +2 | +10 |
| +0.7 | Round of 64 | OMNIBUS | 27 | 4♠ | ♠6 | +1 | +1 |
| +0.3 | Round of 64 | OMNIBUS | 44 | 3NT | ♥7 | +1 | +1 |
| +0.1 | Round of 64 | OMNIBUS | 5 | 3NT | ♥Q | -1 | -12 |
| +0.1 | Round of 64 | OMNIBUS | 45 | 3NT | ♥5 | +3 | -11 |
| -0.1 | Round of 64 | OMNIBUS | 52 | 4♣ | ♠6 | = | +0 |
| -0.2 | Round of 32 | SILVER SURFERS | 8 | 3NT | ♦2 | +1 | +0 |
| -0.4 | Round of 64 | OMNIBUS | 2 | 4♠ | ♣Q | = | -11 |
| -0.5 | Round of 64 | OMNIBUS | 26 | 4♠ | ♥3 | +1 | +0 |
| -0.5 | Round of 64 | OMNIBUS | 49 | 3NT | ♦J | +1 | -1 |
| -0.7 | Round of 64 | OMNIBUS | 10 | 4♥ | ♦J | +1 | -1 |
| -0.9 | Round of 64 | OMNIBUS | 16 | 4♥ | ♦5 | = | -1 |
| -0.9 | Round of 64 | OMNIBUS | 21 | 3♦ | ♦3 | -1 | -2 |
| -1.0 | Round of 64 | OMNIBUS | 17 | 5♥x | ♠5 | -1 | +0 |
| -1.0 | Round of 32 | SILVER SURFERS | 17 | 3NT | ♣9 | +2 | +0 |
| -1.1 | Round of 64 | OMNIBUS | 6 | 3♦ | ♠T | = | +11 |
| -1.1 | Round of 64 | OMNIBUS | 22 | 4♠ | ♦T | +1 | -4 |
| -1.1 | Round of 64 | OMNIBUS | 24 | 4♠ | ♥A | = | +1 |
| -1.1 | Round of 32 | SILVER SURFERS | 27 | 3♠ | ♥J | = | -1 |
| -1.2 | Round of 64 | OMNIBUS | 1 | 3♠ | ♥7 | -2 | +7 |
| -1.2 | Round of 32 | SILVER SURFERS | 24 | 2♥ | ♣5 | = | +0 |
| -1.5 | Round of 64 | OMNIBUS | 7 | 3NT | ♠5 | +1 | -4 |
| -1.7 | Round of 32 | SILVER SURFERS | 10 | 4♠ | ♣T | -3 | -5 |
| -1.8 | Round of 64 | OMNIBUS | 18 | 3NT | ♣6 | = | +1 |
| -1.8 | Round of 32 | SILVER SURFERS | 9 | 4♥ | ♠K | +1 | +0 |
| -1.9 | Round of 32 | SILVER SURFERS | 28 | 3♠ | ♥K | -1 | +2 |
| -2.0 | Round of 32 | SILVER SURFERS | 2 | 3NT | ♠J | +2 | -1 |
| -2.2 | Round of 64 | OMNIBUS | 14 | 6♠ | ♣Q | +1 | -11 |
| -2.4 | Round of 64 | OMNIBUS | 53 | 2♦ | ♠T | -1 | -5 |
| -2.5 | Round of 64 | OMNIBUS | 19 | 5♦ | ♣K | = | +0 |
| -3.9 | Round of 64 | OMNIBUS | 55 | 6♥ | ♦T | = | +0 |
| -4.0 | Round of 32 | SILVER SURFERS | 26 | 2♠ | ♥5 | -2 | -7 |
| -4.2 | Round of 32 | SILVER SURFERS | 20 | 6♠ | ♥K | +1 | +13 |
| -4.7 | Round of 64 | OMNIBUS | 56 | 6♣ | ♠K | +1 | +11 |
| -5.0 | Round of 32 | SILVER SURFERS | 6 | 4♥x | ♣T | -3 | -8 |
| -5.2 | Round of 64 | OMNIBUS | 13 | 3♥x | ♠9 | -2 | -12 |
| -5.5 | Round of 32 | SILVER SURFERS | 3 | 6♣ | ♠8 | = | +0 |
| -5.8 | Round of 32 | SILVER SURFERS | 15 | 3NT | ♣6 | = | +0 |
| -6.4 | Round of 32 | SILVER SURFERS | 11 | 3NT | ♥Q | +3 | -3 |
| -7.0 | Round of 32 | SILVER SURFERS | 25 | 4♥ | ♠6 | = | -7 |
| -8.4 | Round of 32 | SILVER SURFERS | 5 | 3NT | ♥2 | -1 | -12 |
| -8.6 | Round of 32 | SILVER SURFERS | 18 | 4♠ | ♦7 | = | -8 |
| -8.9 | Round of 64 | OMNIBUS | 47 | 6♠ | ♦6 | = | +13 |
| -10.3 | Round of 64 | OMNIBUS | 48 | 3♠x | ♠2 | = | -13 |
| -13.0 | Round of 32 | SILVER SURFERS | 16 | 4♠x | ♣A | +1 | -10 |
| -13.3 | Round of 32 | SILVER SURFERS | 23 | 6♠ | ♦K | = | -1 |