🇺🇸 ZHOU Arthur · USA
vs par split: bidding -0.46 · play -0.44
Strength of schedule: opponents averaged +0.19/bd (a tough draw) → opponent-adjusted -0.62/bd
Card play — on target: opening leads 92.3% #4 of 39 · declarer play 73.9% #19 of 39 · defence 82.8% #21 of 39
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 87.5% (8) | 100.0% (5) |
| Declarer play | 66.7% (9) | 78.6% (14) |
| Defence | 75.0% (12) | 88.2% (17) |
Opening leads by suit led: ♠ 100.0% (5) · ♥ 75.0% (4) · ♦ 100.0% (2) · ♣ 100.0% (2)
vs par by strain: NT -1.80 (25) · a suit -0.40 (45)
vs par by level: part-score +0.17 (23) · game -1.11 (46) · slam -16.00 (1)
By role: declaring -1.08/bd (-3.42 vs par · 41) · defending -0.43/bd (+2.65 vs par · 29)
By vulnerability: vulnerable -0.45/bd (-0.77 vs par · 35) · not vulnerable -1.17/bd (-1.03 vs par · 35)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Semifinal | M.Hu | O.Selby – H.Madden | Closed | 14 | -25.1 | -1.79 | -2.00 |
| Semifinal | M.Hu | H.Madden – O.Selby | Open | 14 | +15.6 | +1.11 | +2.71 |
| Semifinal | M.Hu | O.Selby – H.Madden | Closed | 14 | -18.4 | -1.31 | -2.79 |
| Final | M.Hu | Y.Niu – B.Jiang | Open | 14 | -34.5 | -2.46 | -4.21 |
| Final | M.Hu | J.Bai – B.Zhang | Closed | 14 | +5.7 | +0.41 | +1.79 |
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 | Final | 🇨🇳 CHINA1 | 30 | 4♠ | ♣J | = | +11 |
| +10.3 | Semifinal | 🏴 ENGLAND | 20 | 4♥ | ♠7 | -1 | +12 |
| +9.6 | Semifinal | 🏴 ENGLAND | 29 | 4♦x | ♠A | -2 | +8 |
| +8.9 | Semifinal | 🏴 ENGLAND | 36 | 4♥x | ♦6 | = | +4 |
| +8.7 | Final | 🇨🇳 CHINA1 | 33 | 3♥x | ♣A | +1 | +12 |
| +6.1 | Semifinal | 🏴 ENGLAND | 2 | 4♥x | ♠2 | -1 | +11 |
| +5.9 | Final | 🇨🇳 CHINA1 | 15 | 5♣ | ♥4 | -1 | -5 |
| +4.7 | Semifinal | 🏴 ENGLAND | 31 | 4♥ | ♠4 | = | +8 |
| +3.7 | Semifinal | 🏴 ENGLAND | 8 | 3NT | ♠3 | -2 | +11 |
| +3.7 | Semifinal | 🏴 ENGLAND | 26 | 4♥ | ♦A | = | +0 |
| +3.3 | Final | 🇨🇳 CHINA1 | 20 | 4♠ | ♣K | -1 | +6 |
| +3.1 | Final | 🇨🇳 CHINA1 | 25 | 3NT | ♥4 | -3 | +6 |
| +3.0 | Semifinal | 🏴 ENGLAND | 30 | 1NT | ♦7 | +2 | +2 |
| +2.6 | Final | 🇨🇳 CHINA1 | 35 | 5♣ | ♥3 | +2 | +14 |
| +2.3 | Final | 🇨🇳 CHINA1 | 19 | 3NT | ♥2 | +1 | +1 |
| +2.1 | Final | 🇨🇳 CHINA1 | 21 | 4♥ | ♦9 | +2 | -11 |
| +2.0 | Final | 🇨🇳 CHINA1 | 39 | 4♥x | ♣Q | -1 | +5 |
| +2.0 | Final | 🇨🇳 CHINA1 | 40 | 5♣ | ♠A | = | -2 |
| +1.7 | Final | 🇨🇳 CHINA1 | 16 | 3NT | ♠4 | = | -1 |
| +1.6 | Semifinal | 🏴 ENGLAND | 13 | 3NT | ♥K | = | +0 |
| +1.6 | Final | 🇨🇳 CHINA1 | 29 | 3NT | ♣6 | +1 | +0 |
| +1.4 | Semifinal | 🏴 ENGLAND | 21 | 2♦ | ♣A | +2 | +0 |
| +1.4 | Final | 🇨🇳 CHINA1 | 32 | 4♠ | ♥2 | +1 | +1 |
| +1.3 | Semifinal | 🏴 ENGLAND | 22 | 2♥ | ♦K | = | +5 |
| +1.1 | Semifinal | 🏴 ENGLAND | 19 | 2♥ | ♣4 | = | +1 |
| +1.1 | Semifinal | 🏴 ENGLAND | 28 | 2♠ | ♥Q | -1 | +4 |
| +1.0 | Semifinal | 🏴 ENGLAND | 9 | 2♣ | ♥Q | = | +5 |
| +1.0 | Semifinal | 🏴 ENGLAND | 24 | 2♦ | ♣2 | +2 | +0 |
| +0.9 | Semifinal | 🏴 ENGLAND | 5 | 3♥ | ♦3 | +1 | -10 |
| +0.9 | Semifinal | 🏴 ENGLAND | 25 | 2♠ | ♣K | +2 | +7 |
| +0.7 | Semifinal | 🏴 ENGLAND | 14 | 3NT | ♥8 | +1 | -1 |
| +0.7 | Semifinal | 🏴 ENGLAND | 33 | 4♥ | ♦K | = | +0 |
| +0.6 | Semifinal | 🏴 ENGLAND | 15 | 4♠ | ♣K | +1 | +0 |
| +0.6 | Semifinal | 🏴 ENGLAND | 27 | 4♥ | ♣4 | = | +3 |
| +0.6 | Final | 🇨🇳 CHINA1 | 24 | 1NT | ♠J | = | +13 |
| +0.1 | Semifinal | 🏴 ENGLAND | 4 | 2♠ | ♦Q | +1 | +0 |
| +0.0 | Semifinal | 🏴 ENGLAND | 18 | 4♥ | ♠10 | +1 | +0 |
| +0.0 | Final | 🇨🇳 CHINA1 | 42 | 3NT | ♥4 | +1 | +1 |
| -0.1 | Semifinal | 🏴 ENGLAND | 17 | 1NT | ♥5 | +4 | +9 |
| -1.3 | Semifinal | 🏴 ENGLAND | 3 | 3NT | ♠4 | = | +1 |
| -1.3 | Semifinal | 🏴 ENGLAND | 40 | 4♠ | ♣J | -1 | +6 |
| -1.4 | Final | 🇨🇳 CHINA1 | 17 | 2♦ | ♥4 | +1 | +0 |
| -1.9 | Semifinal | 🏴 ENGLAND | 16 | 3NT | ♦4 | +2 | +0 |
| -1.9 | Semifinal | 🏴 ENGLAND | 35 | 3NT | ♣5 | +2 | +0 |
| -2.1 | Semifinal | 🏴 ENGLAND | 7 | 2♥ | ♠K | -1 | -5 |
| -2.3 | Semifinal | 🏴 ENGLAND | 32 | 4♥ | ♠2 | +3 | -14 |
| -2.4 | Final | 🇨🇳 CHINA1 | 34 | 2NT | ♣4 | +1 | +1 |
| -2.7 | Final | 🇨🇳 CHINA1 | 31 | 3♠ | ♥3 | = | -7 |
| -3.0 | Semifinal | 🏴 ENGLAND | 12 | 3NT | ♠Q | +1 | +0 |
| -3.0 | Final | 🇨🇳 CHINA1 | 41 | 4♠ | ♦A | = | +0 |
| -3.1 | Semifinal | 🏴 ENGLAND | 39 | 3NT | ♠Q | -2 | -11 |
| -3.1 | Final | 🇨🇳 CHINA1 | 23 | 3♠ | ♦A | -2 | -7 |
| -3.1 | Final | 🇨🇳 CHINA1 | 37 | 1♠ | ♣Q | +1 | -1 |
| -3.3 | Final | 🇨🇳 CHINA1 | 18 | 5♦ | ♠6 | -2 | -6 |
| -4.1 | Semifinal | 🏴 ENGLAND | 42 | 3NT | ♣2 | -1 | -10 |
| -4.4 | Semifinal | 🏴 ENGLAND | 23 | 4♠ | ♣7 | = | -3 |
| -4.6 | Final | 🇨🇳 CHINA1 | 38 | 3NT | ♠10 | -1 | -6 |
| -5.3 | Semifinal | 🏴 ENGLAND | 34 | 4♠ | ♥K | -1 | -12 |
| -6.3 | Semifinal | 🏴 ENGLAND | 1 | 3♦ | ♠A | = | -11 |
| -6.6 | Semifinal | 🏴 ENGLAND | 6 | 2♥ | ♥A | +2 | -10 |
| -6.7 | Semifinal | 🏴 ENGLAND | 38 | 5♣ | ♣10 | +1 | +1 |
| -7.0 | Semifinal | 🏴 ENGLAND | 10 | 3NT | ♥4 | +2 | -2 |
| -7.4 | Final | 🇨🇳 CHINA1 | 36 | 4NT | ♥J | -6 | -4 |
| -8.3 | Semifinal | 🏴 ENGLAND | 41 | 5♣x | ♦A | -2 | -9 |
| -8.7 | Final | 🇨🇳 CHINA1 | 27 | 1NTx | ♠A | = | -12 |
| -10.4 | Final | 🇨🇳 CHINA1 | 28 | 3NTx | ♣4 | +2 | -10 |
| -10.7 | Final | 🇨🇳 CHINA1 | 26 | 3NT | ♥6 | -1 | -17 |
| -12.3 | Semifinal | 🏴 ENGLAND | 37 | 5♠ | ♦Q | -1 | -12 |
| -12.9 | Semifinal | 🏴 ENGLAND | 11 | 5♣ | ♦K | -1 | -17 |
| -15.9 | Final | 🇨🇳 CHINA1 | 22 | 6NTx | ♠5 | -3 | -16 |