CHUI Daniel Siu Wai · BANANA
vs par split: bidding -0.54 · play -0.26
Strength of schedule: opponents averaged +0.03/bd (an average draw) → opponent-adjusted -0.24/bd
Card play — on target: opening leads 74.4% #297 of 382 · declarer play 80.0% #74 of 382 · defence 84.6% #293 of 382
Bidding activity — not a pass: 40.6% #277 of 382 (183/451)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 77.8% (9) | 73.3% (30) |
| Declarer play | 91.7% (12) | 75.0% (28) |
| Defence | 80.0% (20) | 86.2% (58) |
Opening leads by suit led: ♠ 83.3% (6) · ♥ 81.8% (11) · ♦ 64.3% (14) · ♣ 75.0% (8)
vs par by strain: NT -0.72 (40) · a suit -0.82 (114)
vs par by level: part-score +0.06 (54) · game -1.26 (90) · slam -1.30 (10)
By role: declaring +0.05/bd (-3.20 vs par · 76) · defending -0.58/bd (+1.54 vs par · 78)
By vulnerability: vulnerable -0.59/bd (-1.43 vs par · 77) · not vulnerable +0.05/bd (-0.17 vs par · 77)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | W.Wong | T.Burg – P.Zelnik | Closed | 14 | +15.5 | +1.11 | -0.93 |
| Round 3 | J.Chiang | A.Zamir – O.Toledano | Open | 14 | +2.8 | +0.20 | -1.00 |
| Round 4 | W.Wong | S.Mukherjee – R.Tewari | Closed | 14 | -5.5 | -0.39 | -1.36 |
| Round 5 | W.Wong | S.Sofu – H.Avcioglu | Open | 14 | -47.4 | -3.39 | -4.21 |
| Round 6 | W.Wong | P.Trenka – G.Kemeny | Closed | 14 | -20.3 | -1.45 | -1.43 |
| Round 7 | W.Wong | A.Vikor – P.Talyigas | Closed | 14 | -6.8 | -0.49 | +1.07 |
| Round 8 | W.Wong | P.Karlik – I.Walach | Closed | 14 | +22.7 | +1.62 | +3.43 |
| Round 9 | J.Chiang | P.Zwart – J.Van Der Neut | Open | 14 | -23.3 | -1.66 | -3.64 |
| Round 10 | W.Wong | W.Bak – P.Marcinowski | Closed | 14 | -35.5 | -2.54 | -4.79 |
| Round 11 | W.Wong | S.Bora – I.Mermer | Open | 14 | +31.8 | +2.27 | +2.00 |
| Round 12 | W.Wong | L.Rombaut – P.Chottin | Closed | 14 | +24.6 | +1.76 | +2.07 |
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 |
|---|---|---|---|---|---|---|---|
| +14.7 | Round 8 | CZECHIA U23 | 23 | 4♠ | ♠J | = | +19 |
| +13.2 | Round 11 | MAYDAY | 13 | 2♠x | ♠3 | +1 | +14 |
| +11.0 | Round 4 | FORMIDABLES | 23 | 5♠ | ♣J | -1 | +12 |
| +10.0 | Round 11 | MAYDAY | 11 | 3NT | ♠K | = | +13 |
| +9.3 | Round 7 | NEW BROOM | 8 | 6♥ | ♣6 | -1 | +14 |
| +9.1 | Round 12 | FRANCE GREEN | 21 | 4♥ | ♣T | -1 | +10 |
| +8.3 | Round 8 | CZECHIA U23 | 18 | 6♦x | ♣7 | -2 | +10 |
| +8.1 | Round 3 | MAVERICKS | 5 | 6♣ | ♦2 | +1 | -13 |
| +7.9 | Round 10 | PROMAX | 18 | 4♠ | ♥3 | -2 | +11 |
| +7.3 | Round 1 | LUPO VELOCE | 3 | 3♦x | ♥8 | = | +9 |
| +6.4 | Round 1 | LUPO VELOCE | 8 | 4♠x | ♥T | = | +7 |
| +6.4 | Round 11 | MAYDAY | 1 | 4♠x | ♣A | = | +12 |
| +6.1 | Round 12 | FRANCE GREEN | 18 | 3♣ | ♦A | -3 | +1 |
| +6.0 | Round 3 | MAVERICKS | 2 | 5♠ | ♣7 | = | -13 |
| +6.0 | Round 7 | NEW BROOM | 12 | 4♥ | ♥4 | -1 | +11 |
| +5.8 | Round 9 | VALLON BRIDGE | 13 | 6NT | ♥4 | = | -13 |
| +5.8 | Round 12 | FRANCE GREEN | 19 | 5♣ | ♦5 | -2 | +7 |
| +5.7 | Round 12 | FRANCE GREEN | 28 | 4♥ | ♣A | = | +8 |
| +5.4 | Round 8 | CZECHIA U23 | 20 | 3NT | ♥2 | +1 | +1 |
| +5.2 | Round 11 | MAYDAY | 5 | 3NT | ♥3 | -1 | +10 |
| +4.9 | Round 1 | LUPO VELOCE | 11 | 5♥x | ♣K | -2 | +0 |
| +4.5 | Round 8 | CZECHIA U23 | 15 | 5♦ | ♠3 | +1 | +2 |
| +4.0 | Round 6 | ANGELS | 26 | 5♥ | ♠6 | +1 | +1 |
| +3.8 | Round 3 | MAVERICKS | 8 | 3NT | ♣5 | -3 | +7 |
| +3.7 | Round 11 | MAYDAY | 4 | 3NT | ♠J | = | +0 |
| +3.6 | Round 6 | ANGELS | 27 | 3NT | ♠7 | -1 | +5 |
| +3.4 | Round 4 | FORMIDABLES | 25 | 3NT | ♦T | -3 | +5 |
| +3.4 | Round 9 | VALLON BRIDGE | 5 | 2♠ | ♣7 | +3 | +6 |
| +3.4 | Round 11 | MAYDAY | 8 | 4♥ | ♣A | +1 | +1 |
| +3.4 | Round 11 | MAYDAY | 14 | 2♥ | ♦2 | +1 | -7 |
| +3.4 | Round 12 | FRANCE GREEN | 15 | 4♥ | ♦A | -2 | +5 |
| +3.4 | Round 12 | FRANCE GREEN | 24 | 5♦x | ♠5 | -3 | +5 |
| +3.3 | Round 10 | PROMAX | 26 | 3NT | ♥3 | +1 | +1 |
| +3.2 | Round 8 | CZECHIA U23 | 17 | 3♣ | ♥K | -1 | +5 |
| +3.0 | Round 1 | LUPO VELOCE | 12 | 2♠ | ♣2 | +1 | -10 |
| +2.8 | Round 3 | MAVERICKS | 11 | 5♦ | ♥4 | -1 | +6 |
| +2.6 | Round 9 | VALLON BRIDGE | 3 | 4♣ | ♦K | = | +6 |
| +2.3 | Round 1 | LUPO VELOCE | 1 | 4♣ | ♦Q | -2 | +0 |
| +2.3 | Round 7 | NEW BROOM | 13 | 2♣ | ♦T | -1 | +0 |
| +2.2 | Round 4 | FORMIDABLES | 21 | 2♥ | ♣A | +1 | +6 |
| +2.2 | Round 6 | ANGELS | 17 | 3NT | ♠8 | +3 | -14 |
| +2.1 | Round 3 | MAVERICKS | 14 | 3♥ | ♠7 | = | +0 |
| +2.1 | Round 5 | ELER | 14 | 2NT | ♥Q | -1 | +10 |
| +2.1 | Round 7 | NEW BROOM | 9 | 2♠ | ♦Q | -2 | +7 |
| +2.1 | Round 12 | FRANCE GREEN | 22 | 3♣ | ♥K | -1 | +5 |
| +1.9 | Round 6 | ANGELS | 28 | 3♠ | ♦T | -2 | +0 |
| +1.8 | Round 3 | MAVERICKS | 9 | 2♠ | ♦K | = | +5 |
| +1.8 | Round 12 | FRANCE GREEN | 16 | 3NT | ♥6 | +2 | +0 |
| +1.7 | Round 8 | CZECHIA U23 | 19 | 4♥ | ♣2 | = | +0 |
| +1.6 | Round 9 | VALLON BRIDGE | 10 | 1NT | ♦7 | = | +11 |
| +1.3 | Round 1 | LUPO VELOCE | 4 | 4♠ | ♦2 | +1 | +0 |
| +1.3 | Round 6 | ANGELS | 24 | 2♠ | ♣2 | = | +5 |
| +1.3 | Round 8 | CZECHIA U23 | 25 | 2NT | ♣J | +1 | +1 |
| +1.1 | Round 5 | ELER | 7 | 1NT | ♥Q | -2 | +2 |
| +1.0 | Round 7 | NEW BROOM | 14 | 4♥ | ♦K | = | +0 |
| +1.0 | Round 12 | FRANCE GREEN | 25 | 1NT | ♣2 | +2 | +1 |
| +0.9 | Round 12 | FRANCE GREEN | 27 | 2♠ | ♣T | -1 | -1 |
| +0.8 | Round 1 | LUPO VELOCE | 2 | 4♥ | ♣K | = | +3 |
| +0.7 | Round 3 | MAVERICKS | 10 | 5♣ | ♥A | = | +13 |
| +0.7 | Round 5 | ELER | 9 | 3NT | ♠2 | +2 | +0 |
| +0.6 | Round 11 | MAYDAY | 3 | 2♠ | ♥2 | +1 | -6 |
| +0.5 | Round 10 | PROMAX | 22 | 5♣ | ♦2 | +1 | -11 |
| +0.4 | Round 1 | LUPO VELOCE | 14 | 4♠ | ♥A | +1 | +0 |
| +0.4 | Round 7 | NEW BROOM | 3 | 2♠ | ♦Q | +1 | +6 |
| +0.4 | Round 9 | VALLON BRIDGE | 6 | 1NT | ♦8 | +2 | +1 |
| +0.3 | Round 3 | MAVERICKS | 3 | 2♥ | ♥3 | +1 | +0 |
| +0.3 | Round 4 | FORMIDABLES | 20 | 4♠ | ♥5 | -1 | -6 |
| +0.3 | Round 6 | ANGELS | 22 | 4♠ | ♣8 | +1 | +17 |
| +0.2 | Round 9 | VALLON BRIDGE | 8 | 1NT | ♠4 | = | +2 |
| +0.1 | Round 4 | FORMIDABLES | 19 | 3NT | ♠J | +1 | +1 |
| +0.1 | Round 9 | VALLON BRIDGE | 1 | 3NT | ♥6 | +2 | +0 |
| +0.1 | Round 10 | PROMAX | 25 | 4♠ | ♦8 | +2 | -11 |
| +0.1 | Round 12 | FRANCE GREEN | 23 | 4♥ | ♦K | = | +1 |
| -0.0 | Round 6 | ANGELS | 16 | 4♠ | ♦K | -1 | +2 |
| -0.1 | Round 1 | LUPO VELOCE | 10 | 4♦ | ♠A | +1 | +10 |
| -0.1 | Round 1 | LUPO VELOCE | 13 | 4♠ | ♥4 | +1 | -13 |
| -0.2 | Round 6 | ANGELS | 25 | 3♦ | ♣J | +1 | +1 |
| -0.3 | Round 3 | MAVERICKS | 4 | 4♠ | ♥9 | = | -1 |
| -0.4 | Round 5 | ELER | 11 | 1NT | ♣3 | +1 | -7 |
| -0.4 | Round 9 | VALLON BRIDGE | 14 | 4♠ | ♦6 | +1 | +0 |
| -0.5 | Round 3 | MAVERICKS | 1 | 6NT | ♥7 | = | +0 |
| -0.5 | Round 5 | ELER | 8 | 2♠ | ♣2 | +1 | -6 |
| -0.5 | Round 7 | NEW BROOM | 5 | 1NT | ♥5 | -1 | -2 |
| -0.5 | Round 7 | NEW BROOM | 7 | 1NT | ♠6 | -1 | +0 |
| -0.5 | Round 8 | CZECHIA U23 | 16 | 6♣x | ♥A | -2 | -5 |
| -0.5 | Round 8 | CZECHIA U23 | 28 | 4♠ | ♣J | +2 | +14 |
| -0.7 | Round 8 | CZECHIA U23 | 26 | 4♠ | ♦9 | = | +1 |
| -0.8 | Round 10 | PROMAX | 17 | 1NT | ♠A | = | +0 |
| -1.0 | Round 7 | NEW BROOM | 2 | 4♠ | ♠2 | +1 | +0 |
| -1.1 | Round 4 | FORMIDABLES | 24 | 4♥ | ♠K | +1 | +0 |
| -1.1 | Round 10 | PROMAX | 20 | 4♠ | ♠T | = | +0 |
| -1.2 | Round 6 | ANGELS | 15 | 4♥ | ♣2 | +1 | +0 |
| -1.2 | Round 7 | NEW BROOM | 11 | 4♠ | ♥K | = | +1 |
| -1.2 | Round 11 | MAYDAY | 2 | 2♠ | ♠3 | = | -5 |
| -1.3 | Round 4 | FORMIDABLES | 18 | 2♠ | ♣A | +1 | +0 |
| -1.3 | Round 10 | PROMAX | 16 | 4♠ | ♣6 | -2 | -11 |
| -1.3 | Round 12 | FRANCE GREEN | 26 | 1NT | ♠2 | = | +1 |
| -1.4 | Round 11 | MAYDAY | 7 | 3NT | ♣4 | +1 | +1 |
| -1.5 | Round 4 | FORMIDABLES | 15 | 3NT | ♦5 | = | +1 |
| -1.6 | Round 1 | LUPO VELOCE | 7 | 4NT | ♦5 | +2 | -13 |
| -1.6 | Round 8 | CZECHIA U23 | 24 | 1NT | ♥8 | +1 | +0 |
| -1.8 | Round 3 | MAVERICKS | 13 | 4♠ | ♥K | = | -9 |
| -1.8 | Round 4 | FORMIDABLES | 16 | 2♥ | ♦T | = | +1 |
| -1.8 | Round 5 | ELER | 1 | 2♠ | ♦T | +2 | -1 |
| -1.9 | Round 8 | CZECHIA U23 | 27 | 4♥ | ♦9 | -2 | +0 |
| -1.9 | Round 11 | MAYDAY | 10 | 4♥ | ♣8 | +2 | +12 |
| -2.0 | Round 5 | ELER | 2 | 3♠ | ♣T | = | -1 |
| -2.0 | Round 10 | PROMAX | 19 | 4♠ | ♣J | -1 | +2 |
| -2.2 | Round 4 | FORMIDABLES | 22 | 4♠ | ♣T | +2 | -11 |
| -2.2 | Round 7 | NEW BROOM | 6 | 2♠ | ♠3 | -1 | -4 |
| -2.2 | Round 9 | VALLON BRIDGE | 11 | 3NT | ♠6 | = | -6 |
| -2.4 | Round 5 | ELER | 3 | 4♠ | ♣2 | -1 | -5 |
| -2.5 | Round 1 | LUPO VELOCE | 5 | 5♣ | ♠K | -1 | -6 |
| -2.5 | Round 8 | CZECHIA U23 | 21 | 3NT | ♥4 | +1 | +0 |
| -2.7 | Round 6 | ANGELS | 20 | 2♥ | ♣3 | +1 | -1 |
| -2.7 | Round 9 | VALLON BRIDGE | 12 | 3♦ | ♣K | +2 | -11 |
| -3.0 | Round 11 | MAYDAY | 6 | 3NT | ♦5 | +1 | -10 |
| -3.0 | Round 11 | MAYDAY | 12 | 3♥ | ♣5 | +1 | -8 |
| -3.1 | Round 4 | FORMIDABLES | 17 | 3♥ | ♦6 | = | +0 |
| -3.1 | Round 4 | FORMIDABLES | 28 | 2♠ | ♦Q | +2 | -10 |
| -3.2 | Round 1 | LUPO VELOCE | 9 | 4♠ | ♦Q | +2 | -1 |
| -3.2 | Round 3 | MAVERICKS | 6 | 1♠ | ♠2 | +3 | -6 |
| -3.4 | Round 1 | LUPO VELOCE | 6 | 5♦ | ♥A | = | +1 |
| -3.4 | Round 10 | PROMAX | 28 | 5♣ | ♠K | = | +0 |
| -3.6 | Round 11 | MAYDAY | 9 | 4♥ | ♦7 | +2 | +1 |
| -3.9 | Round 5 | ELER | 6 | 2NT | ♠4 | +1 | -6 |
| -4.1 | Round 4 | FORMIDABLES | 26 | 4♠ | ♥A | -1 | -12 |
| -4.3 | Round 4 | FORMIDABLES | 27 | 3♥ | ♥4 | +1 | -6 |
| -4.7 | Round 6 | ANGELS | 18 | 4♠ | ♦A | = | +0 |
| -4.9 | Round 5 | ELER | 4 | 2♦ | ♥5 | +1 | +0 |
| -5.0 | Round 12 | FRANCE GREEN | 17 | 2♠ | ♥A | +3 | -6 |
| -5.4 | Round 7 | NEW BROOM | 10 | 4♥ | ♠5 | = | -10 |
| -5.9 | Round 10 | PROMAX | 24 | 3NT | ♠K | = | -3 |
| -6.1 | Round 6 | ANGELS | 19 | 3♠x | ♦6 | -3 | -9 |
| -7.1 | Round 3 | MAVERICKS | 12 | 5♠ | ♥6 | +1 | -16 |
| -7.2 | Round 5 | ELER | 5 | 4♥ | ♦A | -2 | -12 |
| -7.2 | Round 7 | NEW BROOM | 4 | 7♣ | ♥2 | = | +2 |
| -7.5 | Round 10 | PROMAX | 27 | 4♥ | ♠2 | -1 | -11 |
| -7.7 | Round 9 | VALLON BRIDGE | 9 | 6♥ | ♥9 | +1 | -11 |
| -7.7 | Round 10 | PROMAX | 21 | 4♠ | ♦Q | -1 | -12 |
| -8.0 | Round 9 | VALLON BRIDGE | 2 | 5♠ | ♥A | -1 | -14 |
| -8.1 | Round 9 | VALLON BRIDGE | 4 | 4♥ | ♥6 | +1 | -11 |
| -8.2 | Round 6 | ANGELS | 23 | 3NT | ♠6 | -1 | -15 |
| -8.2 | Round 10 | PROMAX | 15 | 4♠ | ♣Q | -1 | -12 |
| -8.3 | Round 9 | VALLON BRIDGE | 7 | 3NT | ♣2 | -4 | -11 |
| -8.5 | Round 12 | FRANCE GREEN | 20 | 4♠x | ♥J | -1 | -8 |
| -8.7 | Round 8 | CZECHIA U23 | 22 | 4♥ | ♠4 | = | +0 |
| -8.9 | Round 5 | ELER | 13 | 3NT | ♠J | -1 | -16 |
| -9.3 | Round 5 | ELER | 12 | 4♠ | ♦6 | = | -7 |
| -9.4 | Round 10 | PROMAX | 23 | 4♥ | ♦7 | = | -10 |
| -9.9 | Round 3 | MAVERICKS | 7 | 6NT | ♠3 | +1 | +13 |
| -9.9 | Round 7 | NEW BROOM | 1 | 7♣ | ♥2 | = | -10 |
| -10.0 | Round 5 | ELER | 10 | 4♥ | ♦2 | = | -10 |
| -10.5 | Round 6 | ANGELS | 21 | 5♦ | ♣7 | = | -12 |