CHUI Daniel Siu Wai · BANANA
176rank
-11.2Butler · 98 bds
-0.11per board
±5.3swing
+0.39vs par /bd · #77/241
+0.18adjusted /bd
by round
vs par split: bidding +0.45 · play -0.02
Strength of schedule: opponents averaged +0.29/bd (a tough draw) → opponent-adjusted +0.18/bd
Card play — on target: opening leads 71.4% #195 of 241 · declarer play 75.0% #121 of 241 · defence 81.0% #207 of 241
Bidding activity — not a pass: 37.0% #217 of 241 (108/292)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 64.3% (14) | 76.2% (21) |
| Declarer play | 100.0% (2) | 71.4% (14) |
| Defence | 80.0% (20) | 81.6% (38) |
Opening leads by suit led: ♠ 66.7% (6) · ♥ 75.0% (8) · ♦ 60.0% (10) · ♣ 81.8% (11)
vs par by strain: NT +1.00 (28) · a suit +0.20 (69)
vs par by level: part-score -0.40 (25) · game +1.27 (63) · slam -3.11 (9)
By role: declaring -0.99/bd (-4.10 vs par · 39) · defending +0.46/bd (+3.48 vs par · 58)
By vulnerability: vulnerable +0.54/bd (+1.16 vs par · 49) · not vulnerable -0.77/bd (-0.39 vs par · 49)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | W.Wong | T.Lasota – M.Turant | Closed | 14 | +32.2 | +2.30 | +3.21 |
| Round 2 | W.Wong | A.Franchi – M.Di Franco | Open | 14 | +8.7 | +0.62 | +1.07 |
| Round 4 | J.Chiang | J.Amiguet – S.Magnusson | Closed | 14 | -19.9 | -1.42 | -1.57 |
| Round 5 | J.Chiang | Y.Chumak – E.Kupriianov | Open | 14 | -34.9 | -2.49 | -0.79 |
| Round 6 | J.Chiang | M.Ter Laare – W.Alkemade | Closed | 14 | -11.1 | -0.79 | +1.71 |
| Round 7 | W.Wong | P.Maliszewski – R.Wlodkowski | Closed | 14 | +8.0 | +0.57 | -1.43 |
| Round 8 | J.Chiang | D.Kroening – O.Karimi | Open | 14 | +5.8 | +0.41 | +0.50 |
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 |
|---|---|---|---|---|---|---|---|
| +15.1 | Round 4 | ISTARI | 23 | 4♥x | ♣8 | -3 | +16 |
| +13.5 | Round 1 | WARSAW UNIVERSITY | 3 | 5♥x | ♣A | -3 | +14 |
| +11.7 | Round 1 | WARSAW UNIVERSITY | 8 | 3NT | ♣3 | -2 | +14 |
| +10.5 | Round 7 | LYSY SOLEK | 8 | 4♥ | ♦Q | -1 | +14 |
| +9.7 | Round 2 | BRENO | 28 | 5♣x | ♣6 | -5 | +10 |
| +8.2 | Round 5 | JUSTJUMP | 12 | 5♦ | ♠J | +1 | +11 |
| +8.0 | Round 8 | BAMBI | 26 | 4♥ | ♣2 | +1 | +0 |
| +7.4 | Round 7 | LYSY SOLEK | 13 | 2♠x | ♥7 | -1 | +2 |
| +6.9 | Round 8 | BAMBI | 22 | 4♠ | ♦J | = | +0 |
| +6.7 | Round 1 | WARSAW UNIVERSITY | 10 | 3♦ | ♣5 | = | +6 |
| +6.6 | Round 8 | BAMBI | 27 | 4♠ | ♣A | = | +7 |
| +6.4 | Round 1 | WARSAW UNIVERSITY | 4 | 5♣ | ♦K | = | +0 |
| +5.8 | Round 4 | ISTARI | 18 | 5♥ | ♦7 | -1 | +11 |
| +5.6 | Round 6 | VALLON BRIDGE | 17 | 5♦x | ♠Q | = | +4 |
| +5.1 | Round 2 | BRENO | 18 | 4♥ | ♠3 | -1 | +10 |
| +4.8 | Round 6 | VALLON BRIDGE | 27 | 3♣ | ♣2 | +1 | +7 |
| +4.7 | Round 7 | LYSY SOLEK | 2 | 1NT | ♠2 | +1 | -9 |
| +4.4 | Round 1 | WARSAW UNIVERSITY | 5 | 3NT | ♦T | -3 | +11 |
| +4.3 | Round 5 | JUSTJUMP | 5 | 5♥ | ♦A | -1 | +10 |
| +3.7 | Round 7 | LYSY SOLEK | 12 | 2♠ | ♥2 | +1 | +0 |
| +3.7 | Round 8 | BAMBI | 24 | 4♥ | ♣T | -2 | +6 |
| +3.4 | Round 1 | WARSAW UNIVERSITY | 13 | 4♥ | ♣6 | +2 | +9 |
| +3.4 | Round 2 | BRENO | 21 | 3♦ | ♣K | = | +7 |
| +2.7 | Round 2 | BRENO | 25 | 5♣ | ♥3 | -1 | +5 |
| +2.6 | Round 4 | ISTARI | 26 | 3♥ | ♥4 | -1 | +12 |
| +2.5 | Round 7 | LYSY SOLEK | 10 | 3♦ | ♠A | +1 | +0 |
| +2.4 | Round 8 | BAMBI | 15 | 2NT | ♦6 | +1 | +6 |
| +2.3 | Round 7 | LYSY SOLEK | 1 | 2♠ | ♣9 | -1 | +4 |
| +2.2 | Round 2 | BRENO | 27 | 1NT | ♠6 | = | +6 |
| +2.1 | Round 6 | VALLON BRIDGE | 22 | 4♥ | ♠J | -1 | +5 |
| +2.0 | Round 1 | WARSAW UNIVERSITY | 9 | 2♥ | ♦2 | +1 | -6 |
| +1.7 | Round 6 | VALLON BRIDGE | 15 | 6♠ | ♣2 | +1 | +13 |
| +1.6 | Round 5 | JUSTJUMP | 6 | 4♥ | ♥3 | +2 | -1 |
| +1.6 | Round 6 | VALLON BRIDGE | 18 | 3NT | ♥Q | = | +5 |
| +1.6 | Round 8 | BAMBI | 20 | 1NT | ♠A | -1 | +0 |
| +1.4 | Round 2 | BRENO | 16 | 2♠ | ♥8 | = | -1 |
| +1.4 | Round 7 | LYSY SOLEK | 14 | 4♥ | ♠T | = | +3 |
| +1.2 | Round 5 | JUSTJUMP | 7 | 6♥ | ♣3 | -1 | +17 |
| +1.0 | Round 2 | BRENO | 19 | 1NT | ♦2 | = | +0 |
| +0.9 | Round 5 | JUSTJUMP | 10 | 4♠ | ♣K | -1 | +6 |
| +0.9 | Round 6 | VALLON BRIDGE | 19 | 3NT | ♦2 | +1 | +11 |
| +0.7 | Round 2 | BRENO | 22 | 3NT | ♦4 | +1 | -10 |
| +0.5 | Round 2 | BRENO | 24 | Pass | -4 | ||
| +0.4 | Round 7 | LYSY SOLEK | 9 | 3NT | ♦T | +1 | +1 |
| +0.3 | Round 6 | VALLON BRIDGE | 26 | 4♥ | ♣8 | = | -1 |
| +0.3 | Round 8 | BAMBI | 25 | 3NT | ♥J | = | +2 |
| +0.2 | Round 2 | BRENO | 20 | 1NT | ♠4 | +1 | +0 |
| +0.2 | Round 6 | VALLON BRIDGE | 20 | 4♥ | ♣3 | = | -1 |
| +0.1 | Round 5 | JUSTJUMP | 14 | 4♠ | ♦6 | = | +0 |
| -0.1 | Round 2 | BRENO | 15 | 4♥ | ♣T | -1 | +5 |
| -0.2 | Round 1 | WARSAW UNIVERSITY | 7 | 4♠ | ♣K | +1 | +0 |
| -0.2 | Round 4 | ISTARI | 17 | 4♥ | ♦J | +2 | -1 |
| -0.3 | Round 1 | WARSAW UNIVERSITY | 2 | 4♥ | ♦6 | = | +1 |
| -0.4 | Round 8 | BAMBI | 19 | 3NT | ♦J | +2 | +0 |
| -0.6 | Round 4 | ISTARI | 16 | 4♥ | ♣A | +1 | +0 |
| -0.7 | Round 1 | WARSAW UNIVERSITY | 14 | 3NT | ♠6 | = | +1 |
| -0.8 | Round 4 | ISTARI | 19 | 3NT | ♥5 | +2 | +12 |
| -0.8 | Round 8 | BAMBI | 23 | 4♠ | ♦A | -2 | -7 |
| -1.0 | Round 4 | ISTARI | 25 | 5♣ | ♥2 | -2 | +1 |
| -1.0 | Round 8 | BAMBI | 21 | 3NT | ♠Q | +2 | +10 |
| -1.4 | Round 7 | LYSY SOLEK | 4 | 3NT | ♠7 | +2 | -2 |
| -1.4 | Round 7 | LYSY SOLEK | 6 | 3NT | ♠J | +2 | -1 |
| -1.6 | Round 5 | JUSTJUMP | 8 | 2♠ | ♦7 | = | +0 |
| -1.8 | Round 1 | WARSAW UNIVERSITY | 12 | 4♦ | ♥5 | = | +0 |
| -1.8 | Round 2 | BRENO | 26 | 4♠ | ♣3 | +1 | -1 |
| -1.9 | Round 6 | VALLON BRIDGE | 16 | 4♥ | ♦A | +2 | -1 |
| -2.3 | Round 6 | VALLON BRIDGE | 25 | 2♠ | ♣9 | = | -5 |
| -2.4 | Round 7 | LYSY SOLEK | 7 | 3NT | ♥3 | -1 | -3 |
| -2.8 | Round 4 | ISTARI | 28 | 3♠ | ♣A | +1 | -1 |
| -2.8 | Round 6 | VALLON BRIDGE | 24 | 7♠ | ♦2 | = | +0 |
| -2.9 | Round 5 | JUSTJUMP | 2 | 3NT | ♥2 | +1 | -1 |
| -2.9 | Round 8 | BAMBI | 18 | 5♦ | ♥Q | = | +0 |
| -3.9 | Round 1 | WARSAW UNIVERSITY | 11 | 3NT | ♦8 | +1 | +0 |
| -4.0 | Round 1 | WARSAW UNIVERSITY | 6 | 3NT | ♣Q | = | +0 |
| -4.2 | Round 8 | BAMBI | 28 | 3NT | ♠4 | = | +0 |
| -4.3 | Round 4 | ISTARI | 21 | 5♦ | ♠2 | +2 | -13 |
| -4.7 | Round 2 | BRENO | 17 | 3♥ | ♦T | = | -1 |
| -5.0 | Round 1 | WARSAW UNIVERSITY | 1 | 3NT | ♣8 | -1 | -5 |
| -5.0 | Round 4 | ISTARI | 15 | 4♥ | ♣2 | +1 | -17 |
| -5.0 | Round 7 | LYSY SOLEK | 11 | 4♠ | ♣8 | +2 | -11 |
| -5.1 | Round 8 | BAMBI | 17 | 4♠ | ♦Q | -1 | -10 |
| -5.4 | Round 5 | JUSTJUMP | 4 | 3♦ | ♥6 | = | -11 |
| -5.5 | Round 5 | JUSTJUMP | 11 | 3NT | ♠3 | +1 | -1 |
| -5.7 | Round 4 | ISTARI | 22 | 1NT | ♥7 | +1 | -13 |
| -6.3 | Round 7 | LYSY SOLEK | 5 | 2♠ | ♦9 | +2 | -10 |
| -6.7 | Round 4 | ISTARI | 27 | 3NT | ♦K | = | -6 |
| -6.7 | Round 6 | VALLON BRIDGE | 28 | 4♠ | ♣2 | = | -10 |
| -6.8 | Round 4 | ISTARI | 24 | 6♦ | ♣7 | +1 | -11 |
| -6.8 | Round 6 | VALLON BRIDGE | 21 | 3♦ | ♠J | -4 | -3 |
| -7.8 | Round 5 | JUSTJUMP | 3 | 4♠ | ♥A | = | +0 |
| -7.8 | Round 6 | VALLON BRIDGE | 23 | 6♦ | ♣A | = | +0 |
| -8.0 | Round 5 | JUSTJUMP | 13 | 5♦x | ♠K | -1 | -13 |
| -8.4 | Round 7 | LYSY SOLEK | 3 | 4♠ | ♣8 | = | -8 |
| -8.9 | Round 5 | JUSTJUMP | 9 | 6♣ | ♠4 | -1 | -14 |
| -9.3 | Round 8 | BAMBI | 16 | 7♠x | ♣A | -4 | -7 |
| -9.5 | Round 4 | ISTARI | 20 | 6♦ | ♥2 | -1 | -12 |
| -11.1 | Round 5 | JUSTJUMP | 1 | 6♠ | ♦6 | -1 | -14 |
| -11.6 | Round 2 | BRENO | 23 | 5♣x | ♥9 | = | -11 |