SUN Gang · CHINA HOBBY
178rank
+22.8Butler · 100 bds
+0.23per board
±4.4swing
+0.58vs par /bd · #89/518
+0.26adjusted /bd
by round
vs par split: bidding +0.39 · play +0.19
Strength of schedule: opponents averaged +0.03/bd (an average draw) → opponent-adjusted +0.26/bd
Card play — on target: opening leads 81.8% #217 of 518 · declarer play 77.4% #207 of 517 · defence 85.2% #176 of 518
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 62.5% (8) | 92.9% (14) |
| Declarer play | 75.0% (16) | 80.0% (15) |
| Defence | 75.0% (16) | 89.5% (38) |
Opening leads by suit led: ♠ 87.5% (8) · ♥ 50.0% (4) · ♦ 83.3% (6) · ♣ 100.0% (4)
vs par by strain: NT +0.05 (39) · a suit +0.92 (61)
vs par by level: part-score -0.12 (43) · game +0.93 (54) · slam +4.33 (3)
By role: declaring +0.32/bd (-0.87 vs par · 46) · defending +0.15/bd (+1.81 vs par · 54)
By vulnerability: vulnerable +0.12/bd (+0.24 vs par · 49) · not vulnerable +0.33/bd (+0.90 vs par · 51)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | W.Chen | C.Lorenzini – K.Ward-Platt | Open | 10 | +6.4 | +0.64 | -1.10 |
| Round 2 | W.Chen | A.Fein – C.Predmest | Open | 10 | +7.6 | +0.76 | +1.70 |
| Round 3 | W.Chen | J.Czyzowicz – S.Blank | Open | 10 | +7.1 | +0.71 | +0.50 |
| Round 4 | W.Chen | S.Shan – L.Gan | Open | 10 | -4.6 | -0.46 | +1.40 |
| Round 5 | W.Chen | A.Gromov – A.Gulevich | Open | 10 | +14.5 | +1.45 | +2.00 |
| Round 6 | W.Chen | L.Amoils – V.Bessis | Open | 10 | +2.9 | +0.29 | +0.00 |
| Round 7 | W.Chen | S.Gabay – V.King | Open | 10 | -7.4 | -0.74 | +2.10 |
| Round 8 | W.Chen | B.Zhang – N.Wang | Open | 10 | -16.4 | -1.64 | -2.60 |
| Round 9 | W.Chen | E.Rudakov – E.Rudakova | Open | 10 | +4.7 | +0.47 | -1.20 |
| Round 10 | W.Chen | S.Summers-Caley – A.Wildavsky | Open | 10 | +8.0 | +0.80 | +3.00 |
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 |
|---|---|---|---|---|---|---|---|
| +12.5 | Round 10 | GOTARD | 26 | 5♣x | ♠K | -3 | +14 |
| +12.2 | Round 5 | VYTAS | 23 | 4♠x | ♥A | -3 | +12 |
| +11.9 | Round 6 | THE FRUSH | 1 | 4♠x | ♠Q | = | +12 |
| +11.5 | Round 7 | MCCALLUM | 14 | 6♣ | ♣2 | = | +11 |
| +9.5 | Round 2 | ALPHA | 16 | 5♣ | ♥10 | -1 | +10 |
| +6.9 | Round 9 | MNEPO | 12 | 5♠x | ♣5 | -2 | +2 |
| +5.9 | Round 3 | SIX BLADE KNIFE | 9 | 5♦ | ♠K | -2 | +8 |
| +5.8 | Round 2 | ALPHA | 12 | 2NT | ♥J | = | +1 |
| +5.5 | Round 4 | LU DONG | 13 | 3NT | ♦10 | = | +10 |
| +5.0 | Round 1 | WARD PLATT | 8 | 3NT | ♠4 | = | +0 |
| +4.9 | Round 3 | SIX BLADE KNIFE | 10 | 1NT | ♦7 | +2 | +6 |
| +4.8 | Round 5 | VYTAS | 22 | 3NT | ♣10 | +1 | +11 |
| +4.7 | Round 1 | WARD PLATT | 9 | 3NT | ♣2 | +1 | +10 |
| +4.6 | Round 7 | MCCALLUM | 17 | 4♠ | ♥5 | -2 | +11 |
| +4.3 | Round 3 | SIX BLADE KNIFE | 8 | 2NT | ♥3 | +1 | -4 |
| +4.1 | Round 2 | ALPHA | 11 | 4♦x | ♣9 | -2 | +0 |
| +3.9 | Round 8 | CFSC | 8 | 3♥ | ♣A | = | +0 |
| +3.4 | Round 4 | LU DONG | 15 | 3NT | ♥Q | -1 | +4 |
| +3.1 | Round 2 | ALPHA | 14 | 3NT | ♠7 | +1 | +14 |
| +2.9 | Round 7 | MCCALLUM | 11 | 1NT | ♠10 | +3 | +2 |
| +2.9 | Round 8 | CFSC | 4 | 5♥x | ♣A | -1 | +9 |
| +2.8 | Round 1 | WARD PLATT | 6 | 3NT | ♣J | +2 | +1 |
| +2.7 | Round 2 | ALPHA | 18 | 2♠ | ♥5 | -2 | +2 |
| +2.5 | Round 5 | VYTAS | 28 | 1NT | ♦J | -2 | +2 |
| +2.3 | Round 5 | VYTAS | 26 | 6NT | ♦7 | = | +0 |
| +2.3 | Round 6 | THE FRUSH | 4 | 3NT | ♠6 | +1 | +0 |
| +2.3 | Round 10 | GOTARD | 30 | 3♠ | ♥5 | -2 | +8 |
| +2.1 | Round 3 | SIX BLADE KNIFE | 1 | 1NT | ♣4 | +3 | -2 |
| +2.1 | Round 9 | MNEPO | 11 | 2♦x | ♣A | -3 | +2 |
| +1.9 | Round 1 | WARD PLATT | 5 | 1♠ | ♥Q | +2 | +0 |
| +1.9 | Round 6 | THE FRUSH | 3 | 4♥ | ♦6 | +2 | +11 |
| +1.9 | Round 9 | MNEPO | 14 | 4♠ | ♥6 | -1 | +2 |
| +1.7 | Round 8 | CFSC | 7 | 4♦ | ♣5 | +1 | +11 |
| +1.7 | Round 10 | GOTARD | 23 | 4♥ | ♠2 | -1 | +12 |
| +1.5 | Round 6 | THE FRUSH | 10 | 3♥ | ♠K | -1 | +0 |
| +1.4 | Round 9 | MNEPO | 15 | 4♠ | ♥A | = | +1 |
| +1.3 | Round 5 | VYTAS | 30 | 3NT | ♠10 | = | -2 |
| +1.2 | Round 6 | THE FRUSH | 2 | 3NT | ♥Q | +1 | +1 |
| +1.2 | Round 10 | GOTARD | 22 | 2♥ | ♣A | +1 | +0 |
| +1.0 | Round 4 | LU DONG | 12 | 2♠ | ♥K | = | +1 |
| +1.0 | Round 10 | GOTARD | 21 | 3♣ | ♦10 | +1 | +0 |
| +0.9 | Round 3 | SIX BLADE KNIFE | 5 | 2NT | ♠4 | = | +8 |
| +0.9 | Round 10 | GOTARD | 25 | 5♣x | ♠Q | -3 | +3 |
| +0.8 | Round 5 | VYTAS | 27 | 2♥ | ♠7 | -2 | -1 |
| +0.8 | Round 6 | THE FRUSH | 6 | 3NT | ♥6 | +1 | -1 |
| +0.7 | Round 1 | WARD PLATT | 3 | 5♣x | ♦2 | -3 | -12 |
| +0.7 | Round 1 | WARD PLATT | 4 | 4♠ | ♦4 | = | +1 |
| +0.6 | Round 4 | LU DONG | 11 | 1NT | ♠4 | +1 | +0 |
| +0.6 | Round 9 | MNEPO | 18 | 3NT | ♣3 | +2 | +1 |
| +0.4 | Round 2 | ALPHA | 20 | 4♥ | ♠3 | +1 | +0 |
| +0.3 | Round 9 | MNEPO | 17 | 4♥ | ♦9 | +1 | -10 |
| +0.2 | Round 5 | VYTAS | 24 | 2♠ | ♦8 | +1 | +7 |
| +0.1 | Round 3 | SIX BLADE KNIFE | 3 | 3NT | ♦4 | +1 | +0 |
| +0.1 | Round 4 | LU DONG | 18 | 4♣ | ♠8 | -2 | -1 |
| +0.0 | Round 8 | CFSC | 5 | 3♠ | ♣9 | = | +0 |
| -0.1 | Round 10 | GOTARD | 27 | 2NT | ♦2 | = | +7 |
| -0.2 | Round 4 | LU DONG | 20 | 3♥ | ♣10 | = | -1 |
| -0.3 | Round 3 | SIX BLADE KNIFE | 6 | 4♥ | ♣8 | = | -1 |
| -0.4 | Round 6 | THE FRUSH | 8 | 2♠ | ♣3 | +2 | +6 |
| -0.4 | Round 9 | MNEPO | 16 | 4♠ | ♣9 | +1 | +0 |
| -0.7 | Round 2 | ALPHA | 13 | 3NT | ♣K | +2 | -13 |
| -0.9 | Round 9 | MNEPO | 20 | 2♥ | ♣5 | +1 | +0 |
| -1.0 | Round 1 | WARD PLATT | 2 | 3NT | ♦4 | +1 | +0 |
| -1.0 | Round 8 | CFSC | 6 | 3NT | ♣4 | +3 | -10 |
| -1.1 | Round 7 | MCCALLUM | 16 | 4♠ | ♥6 | +1 | +0 |
| -1.2 | Round 7 | MCCALLUM | 20 | 1NT | ♦7 | +1 | -10 |
| -1.4 | Round 1 | WARD PLATT | 1 | 2♥ | ♠3 | -1 | +1 |
| -1.6 | Round 4 | LU DONG | 16 | 2♦ | ♠8 | -1 | +11 |
| -1.9 | Round 6 | THE FRUSH | 9 | 2♠ | ♥5 | = | -5 |
| -2.0 | Round 7 | MCCALLUM | 19 | 3♣ | ♦Q | -1 | +0 |
| -2.0 | Round 9 | MNEPO | 19 | 4♥ | ♠3 | = | +0 |
| -2.1 | Round 3 | SIX BLADE KNIFE | 2 | 3♠ | ♥5 | +1 | -10 |
| -2.2 | Round 4 | LU DONG | 17 | 3NT | ♥10 | +3 | -2 |
| -2.2 | Round 5 | VYTAS | 21 | 1NT | ♠10 | -1 | -4 |
| -2.5 | Round 2 | ALPHA | 19 | 3NT | ♥A | -1 | -5 |
| -2.5 | Round 8 | CFSC | 3 | 2♥ | ♣Q | = | +0 |
| -2.6 | Round 7 | MCCALLUM | 18 | 6♣ | ♦A | = | +2 |
| -2.7 | Round 8 | CFSC | 2 | 3NT | ♥A | -1 | -12 |
| -2.7 | Round 8 | CFSC | 10 | 3♠ | ♠2 | +1 | -10 |
| -2.8 | Round 5 | VYTAS | 29 | 3NT | ♥J | = | +1 |
| -3.1 | Round 4 | LU DONG | 14 | 2♥ | ♦A | = | -5 |
| -3.1 | Round 7 | MCCALLUM | 15 | 3♦ | ♠J | +1 | +0 |
| -3.3 | Round 3 | SIX BLADE KNIFE | 7 | 2NT | ♣Q | -1 | +0 |
| -3.4 | Round 1 | WARD PLATT | 7 | 1NT | ♠3 | +1 | -6 |
| -3.4 | Round 10 | GOTARD | 29 | 3♥ | ♠Q | -2 | -2 |
| -3.6 | Round 1 | WARD PLATT | 10 | 3♦ | ♠A | = | -6 |
| -3.7 | Round 10 | GOTARD | 24 | 4♠ | ♠2 | -3 | -7 |
| -4.4 | Round 10 | GOTARD | 28 | 4♥ | ♦A | -1 | -5 |
| -4.6 | Round 5 | VYTAS | 25 | 5♥ | ♦K | = | -6 |
| -5.2 | Round 9 | MNEPO | 13 | 4♥ | ♦K | -3 | -10 |
| -5.4 | Round 3 | SIX BLADE KNIFE | 4 | 3NT | ♠5 | +2 | +0 |
| -6.3 | Round 7 | MCCALLUM | 12 | 3NT | ♦Q | = | -3 |
| -6.5 | Round 8 | CFSC | 9 | 5♣ | ♥Q | = | -3 |
| -6.6 | Round 6 | THE FRUSH | 5 | 4♠ | ♣A | +1 | -11 |
| -7.1 | Round 2 | ALPHA | 17 | 3NT | ♥K | +1 | -4 |
| -7.7 | Round 2 | ALPHA | 15 | 3NT | ♠Q | +1 | +12 |
| -7.8 | Round 6 | THE FRUSH | 7 | 2♠ | ♣A | = | -13 |
| -8.1 | Round 4 | LU DONG | 19 | 4♥ | ♠J | = | -3 |
| -9.5 | Round 8 | CFSC | 1 | 3NT | ♠4 | -2 | -11 |
| -10.1 | Round 7 | MCCALLUM | 13 | 5♦x | ♠3 | -4 | +8 |