🇨🇳 JIANG Sifan · CHINA
vs par split: bidding +0.10 · play +0.29
Strength of schedule: opponents averaged +0.00/bd (an average draw) → opponent-adjusted +0.20/bd
Card play — on target: opening leads 94.7% #7 of 87 · declarer play 66.7% #63 of 87 · defence 78.9% #60 of 87
Bidding activity — not a pass: 39.4% #64 of 87 (85/216)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (5) | 92.9% (14) |
| Declarer play | 40.0% (5) | 73.7% (19) |
| Defence | 83.3% (12) | 76.9% (26) |
Opening leads by suit led: ♠ 100.0% (4) · ♥ 100.0% (2) · ♦ 100.0% (5) · ♣ 87.5% (8)
vs par by strain: NT +1.96 (22) · a suit -0.21 (58)
vs par by level: part-score +0.14 (29) · game +0.51 (47) · slam +0.75 (4)
By role: declaring -0.11/bd (-1.21 vs par · 42) · defending +0.54/bd (+2.16 vs par · 38)
By vulnerability: vulnerable -0.04/bd (+0.50 vs par · 40) · not vulnerable +0.43/bd (+0.28 vs par · 40)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 2 | C.Pan | L.Toledano – T.Atzmon | Open | 8 | +17.8 | +2.23 | +2.62 |
| Round 3 | C.Pan | K.Brekke – S.Sjodal | Closed | 8 | -18.3 | -2.29 | -2.38 |
| Round 5 | C.Pan | M.Hirono – Y.Inamura | Closed | 8 | -0.5 | -0.06 | +0.75 |
| Round 6 | C.Pan | L.Kearney – D.Coley | Closed | 8 | +0.7 | +0.09 | +1.12 |
| Round 7 | C.Pan | C.Pedersen – L.Jacobsen | Closed | 8 | -1.6 | -0.20 | +2.00 |
| Round 8 | C.Pan | C.Daldal – L.Bednarski | Closed | 8 | -4.2 | -0.53 | -3.00 |
| Round 10 | C.Pan | M.Van Der Valk – A.Oranje | Open | 8 | -2.0 | -0.25 | -1.50 |
| Round 11 | C.Pan | H.Chow – N.Qian | Open | 8 | +13.6 | +1.70 | +4.00 |
| Round 13 | C.Pan | S.Chu – Y.Cai | Closed | 8 | +15.0 | +1.88 | +1.25 |
| Round 15 | C.Pan | M.Nguyen-Kovacs – D.Kontra | Open | 8 | -4.8 | -0.60 | -1.00 |
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 |
|---|---|---|---|---|---|---|---|
| +9.5 | Round 11 | 🇺🇸 USA1 | 11 | 3NT | ♣3 | -5 | +11 |
| +8.7 | Round 11 | 🇺🇸 USA1 | 10 | 5♠x | ♣A | -3 | +5 |
| +8.3 | Round 7 | 🇩🇰 DENMARK | 25 | 6♥x | ♦J | -1 | +12 |
| +7.7 | Round 6 | 🏴 ENGLAND | 23 | 4♥ | ♠A | -3 | +4 |
| +7.5 | Round 13 | 🇺🇸 USA2 | 31 | 4♠ | ♥A | = | +13 |
| +6.7 | Round 15 | 🇭🇺 HUNGARY | 16 | 3NT | ♠2 | +1 | +7 |
| +6.1 | Round 2 | 🇮🇱 ISRAEL | 16 | 4♦ | ♣8 | -2 | +7 |
| +5.9 | Round 8 | 🇩🇪 GERMANY | 2 | 2♥ | ♠J | +2 | +7 |
| +5.7 | Round 10 | 🇳🇱 NETHERLANDS | 20 | 3NT | ♥Q | -1 | +6 |
| +5.2 | Round 13 | 🇺🇸 USA2 | 25 | 3NT | ♥7 | -1 | +6 |
| +5.0 | Round 7 | 🇩🇰 DENMARK | 28 | 6♠ | ♣T | -1 | +14 |
| +4.8 | Round 13 | 🇺🇸 USA2 | 32 | 3NT | ♦4 | -1 | +6 |
| +4.7 | Round 2 | 🇮🇱 ISRAEL | 9 | 4♠x | ♥3 | = | +5 |
| +4.5 | Round 10 | 🇳🇱 NETHERLANDS | 23 | 3NT | ♠Q | = | -1 |
| +4.2 | Round 6 | 🏴 ENGLAND | 24 | 3♦ | ♦6 | -1 | +4 |
| +3.7 | Round 2 | 🇮🇱 ISRAEL | 15 | 4♠ | ♥7 | -1 | +10 |
| +3.5 | Round 2 | 🇮🇱 ISRAEL | 14 | 3♠ | ♣5 | +1 | -2 |
| +3.3 | Round 5 | 🇯🇵 JAPAN | 8 | 2♥ | ♠K | +1 | +1 |
| +3.3 | Round 7 | 🇩🇰 DENMARK | 26 | 2♥ | ♦A | = | +6 |
| +3.2 | Round 2 | 🇮🇱 ISRAEL | 10 | 3♥ | ♣K | = | +6 |
| +2.9 | Round 6 | 🏴 ENGLAND | 22 | 3NT | ♥8 | +1 | +1 |
| +2.5 | Round 13 | 🇺🇸 USA2 | 30 | 4♠ | ♥6 | = | -1 |
| +2.0 | Round 2 | 🇮🇱 ISRAEL | 12 | 4♥ | ♠A | -1 | +5 |
| +1.9 | Round 11 | 🇺🇸 USA1 | 9 | 1NT | ♦3 | -1 | +5 |
| +1.6 | Round 3 | 🇳🇴 NORWAY | 17 | 2NT | ♣2 | -1 | +5 |
| +1.5 | Round 13 | 🇺🇸 USA2 | 29 | 2♥ | ♣6 | = | -1 |
| +1.5 | Round 15 | 🇭🇺 HUNGARY | 11 | 4♠ | ♦5 | +2 | +1 |
| +1.3 | Round 11 | 🇺🇸 USA1 | 16 | 3♠ | ♥Q | +2 | +9 |
| +1.3 | Round 15 | 🇭🇺 HUNGARY | 15 | 3NT | ♦6 | +1 | -1 |
| +1.1 | Round 7 | 🇩🇰 DENMARK | 30 | 4♠ | ♣A | +1 | +0 |
| +1.1 | Round 10 | 🇳🇱 NETHERLANDS | 19 | 3NT | ♦5 | = | +0 |
| +1.0 | Round 10 | 🇳🇱 NETHERLANDS | 17 | 2♠ | ♦K | = | -1 |
| +0.8 | Round 5 | 🇯🇵 JAPAN | 7 | 4♠ | ♦2 | = | +0 |
| +0.7 | Round 5 | 🇯🇵 JAPAN | 1 | 3♣ | ♠6 | = | +5 |
| +0.7 | Round 11 | 🇺🇸 USA1 | 13 | 3NT | ♦3 | = | +2 |
| +0.5 | Round 5 | 🇯🇵 JAPAN | 2 | 4♥ | ♠K | -1 | +1 |
| +0.5 | Round 15 | 🇭🇺 HUNGARY | 9 | 4♥ | ♦8 | +3 | -10 |
| +0.4 | Round 8 | 🇩🇪 GERMANY | 4 | 4♥ | ♦Q | -1 | -6 |
| +0.3 | Round 5 | 🇯🇵 JAPAN | 4 | 3♦ | ♥8 | +1 | +0 |
| +0.2 | Round 6 | 🏴 ENGLAND | 21 | 3NT | ♥9 | +2 | +10 |
| +0.1 | Round 3 | 🇳🇴 NORWAY | 20 | 3NT | ♦5 | +1 | +1 |
| -0.1 | Round 5 | 🇯🇵 JAPAN | 3 | 4♠ | ♦3 | = | +0 |
| -0.2 | Round 10 | 🇳🇱 NETHERLANDS | 18 | 4♦ | ♥J | +2 | -10 |
| -0.3 | Round 3 | 🇳🇴 NORWAY | 21 | 1NT | ♦7 | +2 | +1 |
| -0.3 | Round 3 | 🇳🇴 NORWAY | 22 | 3NT | ♥7 | = | +0 |
| -0.4 | Round 5 | 🇯🇵 JAPAN | 6 | 1NT | ♥5 | +3 | +9 |
| -0.4 | Round 7 | 🇩🇰 DENMARK | 27 | 4♥ | ♦T | -2 | -8 |
| -0.7 | Round 3 | 🇳🇴 NORWAY | 18 | 4♦ | ♥A | = | -6 |
| -0.9 | Round 8 | 🇩🇪 GERMANY | 3 | 3♣ | ♠Q | -1 | -5 |
| -0.9 | Round 13 | 🇺🇸 USA2 | 28 | 4♠ | ♦T | = | -6 |
| -1.0 | Round 6 | 🏴 ENGLAND | 20 | 2♠ | ♥5 | +1 | +0 |
| -1.1 | Round 15 | 🇭🇺 HUNGARY | 14 | 3♥x | ♣3 | -1 | -5 |
| -1.3 | Round 8 | 🇩🇪 GERMANY | 8 | 4♠ | ♥K | -1 | -5 |
| -1.4 | Round 13 | 🇺🇸 USA2 | 26 | 2♥ | ♣9 | = | +0 |
| -1.5 | Round 15 | 🇭🇺 HUNGARY | 13 | 4♥ | ♠8 | = | +1 |
| -1.6 | Round 3 | 🇳🇴 NORWAY | 19 | 2♠ | ♦J | = | +0 |
| -1.7 | Round 8 | 🇩🇪 GERMANY | 1 | 4♠ | ♥4 | -1 | -10 |
| -1.7 | Round 8 | 🇩🇪 GERMANY | 7 | 2♠ | ♦4 | = | -6 |
| -1.7 | Round 11 | 🇺🇸 USA1 | 12 | 3NT | ♣5 | +2 | +0 |
| -1.8 | Round 8 | 🇩🇪 GERMANY | 5 | 2NT | ♠9 | = | +0 |
| -1.9 | Round 6 | 🏴 ENGLAND | 18 | 4♠ | ♦T | -1 | +0 |
| -2.0 | Round 10 | 🇳🇱 NETHERLANDS | 22 | 4♠ | ♥3 | +2 | +1 |
| -2.1 | Round 2 | 🇮🇱 ISRAEL | 11 | 3♠ | ♣A | -1 | -8 |
| -2.1 | Round 6 | 🏴 ENGLAND | 17 | 4♥ | ♠A | -2 | +0 |
| -2.2 | Round 3 | 🇳🇴 NORWAY | 24 | 3NT | ♣T | -1 | -5 |
| -2.3 | Round 7 | 🇩🇰 DENMARK | 31 | 4♠ | ♦A | = | +0 |
| -2.4 | Round 11 | 🇺🇸 USA1 | 15 | 2♠ | ♥5 | +1 | +0 |
| -3.1 | Round 8 | 🇩🇪 GERMANY | 6 | 4♥ | ♦A | -2 | +1 |
| -3.3 | Round 2 | 🇮🇱 ISRAEL | 13 | 4♥ | ♣A | -2 | -2 |
| -3.5 | Round 15 | 🇭🇺 HUNGARY | 10 | 4♠ | ♠8 | +1 | +12 |
| -4.2 | Round 13 | 🇺🇸 USA2 | 27 | 2♥ | ♦J | +2 | -7 |
| -4.3 | Round 7 | 🇩🇰 DENMARK | 29 | 4♠ | ♠6 | +1 | +0 |
| -4.4 | Round 11 | 🇺🇸 USA1 | 14 | 4♥ | ♦2 | +1 | +0 |
| -5.6 | Round 5 | 🇯🇵 JAPAN | 5 | 2♠ | ♥A | +1 | -10 |
| -5.6 | Round 10 | 🇳🇱 NETHERLANDS | 24 | 4♥ | ♠7 | = | +0 |
| -6.5 | Round 10 | 🇳🇱 NETHERLANDS | 21 | 3NT | ♣T | = | -7 |
| -8.7 | Round 15 | 🇭🇺 HUNGARY | 12 | 3NT | ♥4 | -2 | -13 |
| -9.3 | Round 6 | 🏴 ENGLAND | 19 | 4♥ | ♣J | -1 | -10 |
| -12.3 | Round 7 | 🇩🇰 DENMARK | 32 | 6♥ | ♠K | = | -8 |
| -14.9 | Round 3 | 🇳🇴 NORWAY | 23 | 6♥x | ♦A | -2 | -15 |