🇨🇳 NIU Yuanzhe · CHINA1
vs par split: bidding +2.39 · play +0.46
Strength of schedule: opponents averaged -0.39/bd (an easy draw) → opponent-adjusted +0.90/bd
Card play — on target: opening leads 100.0% #1 of 39 · declarer play 76.2% #16 of 39 · defence 88.0% #11 of 39
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (4) | 100.0% (7) |
| Declarer play | 75.0% (12) | 77.8% (9) |
| Defence | 83.3% (6) | 89.5% (19) |
Opening leads by suit led: ♠ 100.0% (2) · ♥ 100.0% (3) · ♦ 100.0% (2) · ♣ 100.0% (4)
vs par by strain: NT +1.41 (22) · a suit +3.79 (34)
vs par by level: part-score +3.59 (17) · game +1.92 (37) · slam +14.00 (2)
By role: declaring +1.65/bd (+0.35 vs par · 31) · defending +0.84/bd (+5.96 vs par · 25)
By vulnerability: vulnerable +1.70/bd (+4.50 vs par · 28) · not vulnerable +0.87/bd (+1.21 vs par · 28)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Semifinal | B.Jiang | J.Blom – T.Van De Paverd | Open | 14 | -1.5 | -0.11 | +1.00 |
| Semifinal | B.Jiang | J.Blom – T.Van De Paverd | Open | 14 | -5.4 | -0.39 | +1.79 |
| Final | B.Jiang | M.Hu – A.Zhou | Open | 14 | +34.5 | +2.46 | +4.21 |
| Final | B.Jiang | S.Campbell – R.Xiao | Open | 14 | +44.3 | +3.16 | +4.43 |
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 |
|---|---|---|---|---|---|---|---|
| +15.9 | Final | 🇺🇸 USA | 22 | 6NTx | ♠5 | -3 | +16 |
| +13.7 | Final | 🇺🇸 USA | 40 | 6♣ | ♥10 | = | +12 |
| +10.7 | Final | 🇺🇸 USA | 26 | 3NT | ♥6 | -1 | +17 |
| +10.4 | Final | 🇺🇸 USA | 28 | 3NTx | ♣4 | +2 | +10 |
| +9.7 | Final | 🇺🇸 USA | 41 | 2♦ | ♦2 | -1 | +11 |
| +8.7 | Final | 🇺🇸 USA | 27 | 1NTx | ♠A | = | +12 |
| +8.1 | Semifinal | 🇳🇱 NETHERLANDS | 8 | 3NT | ♠3 | +1 | +1 |
| +7.7 | Final | 🇺🇸 USA | 36 | 5♥x | ♠Q | -2 | +10 |
| +6.4 | Semifinal | 🇳🇱 NETHERLANDS | 36 | 3♠ | ♥6 | -3 | +10 |
| +5.4 | Final | 🇺🇸 USA | 31 | 4♠ | ♥7 | = | +0 |
| +5.4 | Final | 🇺🇸 USA | 34 | 3NT | ♥2 | +1 | +7 |
| +5.3 | Semifinal | 🇳🇱 NETHERLANDS | 34 | 4♠ | ♥K | -1 | +12 |
| +3.3 | Final | 🇺🇸 USA | 18 | 5♦ | ♠6 | -2 | +6 |
| +3.1 | Semifinal | 🇳🇱 NETHERLANDS | 7 | 1NT | ♥10 | = | +5 |
| +3.1 | Final | 🇺🇸 USA | 23 | 3♠ | ♦A | -2 | +7 |
| +3.1 | Final | 🇺🇸 USA | 37 | 2♣ | ♠J | = | +5 |
| +3.0 | Semifinal | 🇳🇱 NETHERLANDS | 12 | 3NT | ♣10 | +1 | +0 |
| +2.6 | Final | 🇺🇸 USA | 35 | 5♣ | ♥3 | +2 | +14 |
| +2.3 | Semifinal | 🇳🇱 NETHERLANDS | 32 | 4♥ | ♠2 | +3 | +14 |
| +2.0 | Final | 🇺🇸 USA | 33 | 4♥ | ♣A | = | +8 |
| +2.0 | Final | 🇺🇸 USA | 39 | 4♠x | ♣Q | -1 | +5 |
| +1.9 | Semifinal | 🇳🇱 NETHERLANDS | 35 | 3NT | ♠5 | +2 | +0 |
| +1.6 | Final | 🇺🇸 USA | 29 | 3NT | ♠J | +1 | +0 |
| +1.4 | Semifinal | 🇳🇱 NETHERLANDS | 37 | 5♦x | ♠3 | -2 | +3 |
| +1.4 | Final | 🇺🇸 USA | 17 | 2♦ | ♥4 | +1 | +0 |
| +1.4 | Final | 🇺🇸 USA | 32 | 4♠ | ♠A | +1 | +1 |
| +1.3 | Semifinal | 🇳🇱 NETHERLANDS | 3 | 3NT | ♠2 | = | -1 |
| +0.9 | Semifinal | 🇳🇱 NETHERLANDS | 6 | 3NT | ♥9 | -4 | +6 |
| +0.3 | Semifinal | 🇳🇱 NETHERLANDS | 5 | 3♠ | ♦Q | = | +10 |
| +0.1 | Semifinal | 🇳🇱 NETHERLANDS | 30 | 2♥ | ♦2 | -1 | +1 |
| -0.1 | Semifinal | 🇳🇱 NETHERLANDS | 4 | 2♠ | ♦Q | +1 | +0 |
| -0.4 | Semifinal | 🇳🇱 NETHERLANDS | 29 | 1NT | ♠6 | -1 | +1 |
| -0.6 | Semifinal | 🇳🇱 NETHERLANDS | 42 | 3♦ | ♠A | = | +7 |
| -0.6 | Final | 🇺🇸 USA | 24 | 1NT | ♠J | = | -13 |
| -0.7 | Semifinal | 🇳🇱 NETHERLANDS | 33 | 4♥ | ♦K | = | +0 |
| -1.0 | Semifinal | 🇳🇱 NETHERLANDS | 1 | 3♠ | ♠9 | +1 | +6 |
| -1.1 | Semifinal | 🇳🇱 NETHERLANDS | 9 | 2♦ | ♣J | -1 | -5 |
| -1.1 | Final | 🇺🇸 USA | 42 | 3NT | ♦3 | +2 | +0 |
| -1.4 | Semifinal | 🇳🇱 NETHERLANDS | 14 | 4♠ | ♣8 | +1 | +0 |
| -1.6 | Semifinal | 🇳🇱 NETHERLANDS | 11 | 4♠ | ♦4 | +2 | +13 |
| -1.6 | Semifinal | 🇳🇱 NETHERLANDS | 13 | 3NT | ♣6 | = | +0 |
| -1.7 | Final | 🇺🇸 USA | 16 | 3NT | ♠4 | = | +1 |
| -2.1 | Semifinal | 🇳🇱 NETHERLANDS | 40 | 3NT | ♣J | -2 | -8 |
| -2.1 | Final | 🇺🇸 USA | 21 | 4♥ | ♦9 | +2 | +11 |
| -2.3 | Final | 🇺🇸 USA | 19 | 3NT | ♥2 | +1 | -1 |
| -3.1 | Final | 🇺🇸 USA | 25 | 3NT | ♥4 | -3 | -6 |
| -3.3 | Semifinal | 🇳🇱 NETHERLANDS | 41 | 4♣ | ♣4 | = | -1 |
| -3.3 | Final | 🇺🇸 USA | 20 | 4♠ | ♣K | -1 | -6 |
| -4.6 | Final | 🇺🇸 USA | 30 | 4♠ | ♥6 | -1 | -5 |
| -4.6 | Final | 🇺🇸 USA | 38 | 3NT | ♠2 | -1 | -6 |
| -4.7 | Semifinal | 🇳🇱 NETHERLANDS | 31 | 4♥ | ♠3 | = | -8 |
| -4.7 | Semifinal | 🇳🇱 NETHERLANDS | 38 | 5♣ | ♠Q | -1 | -11 |
| -5.3 | Semifinal | 🇳🇱 NETHERLANDS | 10 | 3NT | ♥2 | -1 | -10 |
| -5.9 | Final | 🇺🇸 USA | 15 | 5♣ | ♥4 | -1 | +5 |
| -6.1 | Semifinal | 🇳🇱 NETHERLANDS | 2 | 4♥ | ♠8 | -2 | -11 |
| -6.3 | Semifinal | 🇳🇱 NETHERLANDS | 39 | 3♦ | ♥3 | +1 | +5 |