🇨🇳 SUN Gang · CHINA
68rank
-55.3Butler · 125 bds
-0.44per board
±4.3swing
-0.17vs par /bd
-0.28adjusted /bd
by round
vs par split: bidding -0.38 · play -0.63
Strength of schedule: opponents averaged +0.16/bd (a tough draw) → opponent-adjusted -0.28/bd
Card play — on target: opening leads 73.3% · declarer play 87.5% · defence 66.7%
Bidding activity — not a pass: 38.1% (139/365)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 66.7% (6) | 77.8% (9) |
| Declarer play | 100.0% (5) | 81.8% (11) |
| Defence | 70.0% (10) | 65.2% (23) |
Opening leads by suit led: ♠ 75.0% (8) · ♥ 100.0% (2) · ♦ 100.0% (1) · ♣ 50.0% (4)
vs par by strain: NT -0.45 (42) · a suit -0.02 (83)
vs par by level: part-score -0.82 (51) · game +0.50 (66) · slam -1.50 (8)
By role: declaring -0.77/bd (-2.15 vs par · 54) · defending -0.19/bd (+1.34 vs par · 71)
By vulnerability: vulnerable -0.63/bd (-0.73 vs par · 62) · not vulnerable -0.26/bd (+0.38 vs par · 63)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round of 16 | Y.Cai | C.Teodorescu – D.Calipetre | Closed | 15 | -19.2 | -1.28 | -1.53 |
| Round of 16 | Y.Cai | D.Calipetre – C.Teodorescu | Open | 15 | +10.1 | +0.67 | -0.80 |
| Round of 16 | Y.Cai | S.Donciu – M.Grigoriu | Open | 15 | +18.2 | +1.21 | +2.33 |
| Quarterfinal | Y.Cai | R.Jagniewski – W.Gawel | Closed | 16 | -3.8 | -0.24 | -0.25 |
| Quarterfinal | Y.Cai | K.Nowak – K.Buras | Open | 16 | -8.5 | -0.53 | +0.31 |
| Quarterfinal | Y.Cai | W.Gawel – R.Jagniewski | Open | 16 | -16.2 | -1.01 | +0.94 |
| Quarterfinal | Y.Cai | K.Buras – K.Nowak | Closed | 16 | -21.7 | -1.36 | -1.69 |
| Quarterfinal | Y.Cai | K.Buras – K.Nowak | Closed | 16 | -14.2 | -0.89 | -0.62 |
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 |
|---|---|---|---|---|---|---|---|
| +12.9 | Round of 16 | 🇷🇴 ROMANIA | 46 | 5♠ | -1 | +13 | |
| +11.6 | Round of 16 | 🇷🇴 ROMANIA | 33 | 4♥ | -1 | +13 | |
| +10.3 | Round of 16 | 🇷🇴 ROMANIA | 34 | 3NT | -1 | +12 | |
| +10.3 | Round of 16 | 🇷🇴 ROMANIA | 55 | 6♠ | -1 | +17 | |
| +8.7 | Quarterfinal | 🇵🇱 POLAND | 70 | 4♠ | ♦7 | = | +0 |
| +7.7 | Round of 16 | 🇷🇴 ROMANIA | 4 | 4♦ | ♠6 | = | +8 |
| +6.9 | Round of 16 | 🇷🇴 ROMANIA | 9 | 6♥ | ♠5 | = | +1 |
| +6.6 | Quarterfinal | 🇵🇱 POLAND | 63 | 2♠ | -1 | +4 | |
| +5.7 | Quarterfinal | 🇵🇱 POLAND | 92 | 4♦ | ♠K | -2 | +7 |
| +5.7 | Quarterfinal | 🇵🇱 POLAND | 93 | 4♠ | ♠Q | = | +0 |
| +4.7 | Quarterfinal | 🇵🇱 POLAND | 71 | 2♦ | ♣A | -1 | +5 |
| +4.6 | Quarterfinal | 🇵🇱 POLAND | 27 | 4♥ | ♠3 | -2 | -1 |
| +4.3 | Quarterfinal | 🇵🇱 POLAND | 64 | 4♥ | -1 | +12 | |
| +4.1 | Quarterfinal | 🇵🇱 POLAND | 18 | 2♠ | ♦6 | -1 | +11 |
| +4.0 | Round of 16 | 🇷🇴 ROMANIA | 45 | 3NT | = | -2 | |
| +3.8 | Round of 16 | 🇷🇴 ROMANIA | 58 | 3♥ | = | +1 | |
| +3.7 | Quarterfinal | 🇵🇱 POLAND | 51 | 3NT | +4 | +2 | |
| +3.4 | Quarterfinal | 🇵🇱 POLAND | 85 | 4♥ | ♦Q | -2 | +7 |
| +3.1 | Quarterfinal | 🇵🇱 POLAND | 88 | 2♦ | ♠T | = | +1 |
| +2.9 | Quarterfinal | 🇵🇱 POLAND | 46 | 4♥ | = | +0 | |
| +2.9 | Quarterfinal | 🇵🇱 POLAND | 79 | 1NT | ♠3 | -1 | +5 |
| +2.7 | Round of 16 | 🇷🇴 ROMANIA | 41 | 3NT | +2 | +1 | |
| +2.5 | Round of 16 | 🇷🇴 ROMANIA | 59 | 2♠ | -1 | +1 | |
| +2.4 | Quarterfinal | 🇵🇱 POLAND | 43 | 4♠ | = | +0 | |
| +2.3 | Round of 16 | 🇷🇴 ROMANIA | 7 | 2♠ | ♣2 | +1 | +0 |
| +2.0 | Round of 16 | 🇷🇴 ROMANIA | 56 | 5♦ | = | +1 | |
| +2.0 | Quarterfinal | 🇵🇱 POLAND | 47 | 3♦ | -1 | -3 | |
| +1.7 | Quarterfinal | 🇵🇱 POLAND | 26 | 4♠ | ♥2 | -1 | +1 |
| +1.4 | Quarterfinal | 🇵🇱 POLAND | 28 | 4♥ | ♦A | = | +0 |
| +1.4 | Quarterfinal | 🇵🇱 POLAND | 60 | 1NT | -3 | +0 | |
| +1.4 | Quarterfinal | 🇵🇱 POLAND | 90 | 2♠ | ♠3 | = | +0 |
| +1.3 | Round of 16 | 🇷🇴 ROMANIA | 49 | 3NT | +1 | +13 | |
| +1.1 | Quarterfinal | 🇵🇱 POLAND | 33 | 1NT | +1 | +0 | |
| +1.0 | Quarterfinal | 🇵🇱 POLAND | 36 | 3♠ | -1 | +6 | |
| +1.0 | Quarterfinal | 🇵🇱 POLAND | 40 | 3NT | +1 | +0 | |
| +1.0 | Quarterfinal | 🇵🇱 POLAND | 62 | 3NT | +1 | +0 | |
| +0.9 | Round of 16 | 🇷🇴 ROMANIA | 38 | 1NT | +2 | +0 | |
| +0.9 | Quarterfinal | 🇵🇱 POLAND | 19 | 3♠ | ♠Q | = | +1 |
| +0.9 | Quarterfinal | 🇵🇱 POLAND | 50 | 5♦ | = | +1 | |
| +0.8 | Round of 16 | 🇷🇴 ROMANIA | 5 | 3NT | ♣5 | +1 | +0 |
| +0.8 | Round of 16 | 🇷🇴 ROMANIA | 60 | 2♠ | +1 | +1 | |
| +0.7 | Round of 16 | 🇷🇴 ROMANIA | 40 | 6NT | = | -13 | |
| +0.6 | Quarterfinal | 🇵🇱 POLAND | 31 | 3NT | ♦A | +1 | +0 |
| +0.6 | Quarterfinal | 🇵🇱 POLAND | 65 | 4♠ | ♣7 | = | +1 |
| +0.5 | Round of 16 | 🇷🇴 ROMANIA | 6 | 3♠ | ♥T | +1 | -1 |
| +0.4 | Round of 16 | 🇷🇴 ROMANIA | 50 | 3NT | +2 | +1 | |
| +0.4 | Quarterfinal | 🇵🇱 POLAND | 35 | 4♥ | +1 | +0 | |
| +0.4 | Quarterfinal | 🇵🇱 POLAND | 67 | 4♠ | ♥K | = | +0 |
| +0.4 | Quarterfinal | 🇵🇱 POLAND | 72 | 3NT | ♥3 | +2 | +0 |
| +0.3 | Round of 16 | 🇷🇴 ROMANIA | 35 | 2♠ | = | +0 | |
| +0.2 | Round of 16 | 🇷🇴 ROMANIA | 47 | 3NT | +1 | +0 | |
| +0.2 | Round of 16 | 🇷🇴 ROMANIA | 52 | 3NT | +1 | +0 | |
| +0.1 | Quarterfinal | 🇵🇱 POLAND | 77 | 1NT | ♥5 | -1 | -1 |
| -0.0 | Quarterfinal | 🇵🇱 POLAND | 29 | 4♠ | ♦7 | +1 | +0 |
| +0.0 | Quarterfinal | 🇵🇱 POLAND | 39 | 3NT | = | +0 | |
| -0.0 | Quarterfinal | 🇵🇱 POLAND | 74 | 3NT | ♦T | = | +0 |
| -0.0 | Quarterfinal | 🇵🇱 POLAND | 95 | 3NT | ♥Q | +2 | +0 |
| -0.1 | Round of 16 | 🇷🇴 ROMANIA | 39 | 3NT | +1 | +0 | |
| -0.1 | Quarterfinal | 🇵🇱 POLAND | 69 | 3NT | ♠4 | -1 | +6 |
| -0.2 | Round of 16 | 🇷🇴 ROMANIA | 13 | 5♦ | ♣5 | = | +2 |
| -0.2 | Round of 16 | 🇷🇴 ROMANIA | 31 | 4♥ | = | +0 | |
| -0.3 | Round of 16 | 🇷🇴 ROMANIA | 14 | 1NT | ♠7 | +1 | +1 |
| -0.3 | Quarterfinal | 🇵🇱 POLAND | 23 | 1NT | ♠2 | +1 | +0 |
| -0.3 | Quarterfinal | 🇵🇱 POLAND | 24 | 3NT | ♦2 | = | -1 |
| -0.4 | Quarterfinal | 🇵🇱 POLAND | 42 | 4♥ | -1 | +6 | |
| -0.5 | Round of 16 | 🇷🇴 ROMANIA | 57 | 3NT | +1 | +0 | |
| -0.7 | Round of 16 | 🇷🇴 ROMANIA | 8 | 4♠ | ♦5 | +1 | +0 |
| -0.7 | Round of 16 | 🇷🇴 ROMANIA | 32 | 7♠ | = | +0 | |
| -0.7 | Quarterfinal | 🇵🇱 POLAND | 32 | 2♠ | ♦K | +1 | -1 |
| -0.7 | Quarterfinal | 🇵🇱 POLAND | 37 | 4♥ | +2 | +11 | |
| -0.7 | Quarterfinal | 🇵🇱 POLAND | 57 | 3NT | = | -1 | |
| -0.9 | Quarterfinal | 🇵🇱 POLAND | 17 | 1NT | ♠3 | +2 | -6 |
| -0.9 | Quarterfinal | 🇵🇱 POLAND | 25 | 3♥ | ♠A | -1 | -2 |
| -0.9 | Quarterfinal | 🇵🇱 POLAND | 41 | 4♥ | -1 | -5 | |
| -0.9 | Quarterfinal | 🇵🇱 POLAND | 59 | 1NT | +2 | +0 | |
| -1.0 | Round of 16 | 🇷🇴 ROMANIA | 2 | 3NT | ♣4 | = | +1 |
| -1.0 | Quarterfinal | 🇵🇱 POLAND | 55 | 3NT | +2 | -1 | |
| -1.1 | Quarterfinal | 🇵🇱 POLAND | 94 | 4♦ | ♠Q | -1 | -4 |
| -1.2 | Round of 16 | 🇷🇴 ROMANIA | 54 | 1NT | +2 | -4 | |
| -1.3 | Quarterfinal | 🇵🇱 POLAND | 34 | 4♥ | = | -7 | |
| -1.3 | Quarterfinal | 🇵🇱 POLAND | 83 | 4♠ | ♦6 | = | +0 |
| -1.4 | Quarterfinal | 🇵🇱 POLAND | 49 | 2NT | +1 | +6 | |
| -1.4 | Quarterfinal | 🇵🇱 POLAND | 56 | 4♥ | = | +1 | |
| -1.4 | Quarterfinal | 🇵🇱 POLAND | 58 | 2♥ | -1 | +6 | |
| -1.5 | Round of 16 | 🇷🇴 ROMANIA | 48 | 3NT | +1 | +0 | |
| -1.7 | Quarterfinal | 🇵🇱 POLAND | 75 | 2♦ | ♠3 | +1 | +1 |
| -1.8 | Round of 16 | 🇷🇴 ROMANIA | 1 | 3♣ | ♣6 | -3 | +6 |
| -1.9 | Quarterfinal | 🇵🇱 POLAND | 21 | 2♠ | ♥A | +2 | -2 |
| -1.9 | Quarterfinal | 🇵🇱 POLAND | 68 | 4♠ | ♦2 | +2 | -1 |
| -1.9 | Quarterfinal | 🇵🇱 POLAND | 82 | 2♥ | ♣8 | -1 | -1 |
| -2.0 | Quarterfinal | 🇵🇱 POLAND | 45 | 4♠ | = | +0 | |
| -2.3 | Quarterfinal | 🇵🇱 POLAND | 87 | 1NT | ♥6 | = | +1 |
| -2.4 | Round of 16 | 🇷🇴 ROMANIA | 3 | 3♣ | ♥7 | = | +0 |
| -2.6 | Quarterfinal | 🇵🇱 POLAND | 89 | 3♦ | ♥K | = | -6 |
| -2.7 | Round of 16 | 🇷🇴 ROMANIA | 43 | 2NT | = | -10 | |
| -2.7 | Quarterfinal | 🇵🇱 POLAND | 22 | 2♦ | ♣3 | = | +2 |
| -2.7 | Quarterfinal | 🇵🇱 POLAND | 81 | 4♥ | ♠A | +1 | +0 |
| -2.7 | Quarterfinal | 🇵🇱 POLAND | 96 | 4♠ | ♦J | +1 | +0 |
| -2.8 | Round of 16 | 🇷🇴 ROMANIA | 53 | 2♠ | -1 | -9 | |
| -2.9 | Round of 16 | 🇷🇴 ROMANIA | 37 | 4♥ | = | +0 | |
| -3.0 | Quarterfinal | 🇵🇱 POLAND | 48 | 5♦ | = | -3 | |
| -3.3 | Round of 16 | 🇷🇴 ROMANIA | 44 | 2♦ | = | -5 | |
| -3.4 | Quarterfinal | 🇵🇱 POLAND | 20 | 3NT | ♥Q | +1 | +0 |
| -3.6 | Quarterfinal | 🇵🇱 POLAND | 53 | 4♥ | = | +1 | |
| -3.6 | Quarterfinal | 🇵🇱 POLAND | 76 | 4♥ | ♦6 | -1 | -5 |
| -3.8 | Round of 16 | 🇷🇴 ROMANIA | 42 | 4♠x | -1 | -2 | |
| -3.9 | Quarterfinal | 🇵🇱 POLAND | 44 | 2♥ | = | +0 | |
| -4.1 | Quarterfinal | 🇵🇱 POLAND | 84 | 3NT | ♣A | -1 | -6 |
| -4.7 | Quarterfinal | 🇵🇱 POLAND | 91 | 4♠ | ♦K | -2 | -9 |
| -5.0 | Quarterfinal | 🇵🇱 POLAND | 66 | 4♠ | ♦3 | -1 | -5 |
| -5.3 | Round of 16 | 🇷🇴 ROMANIA | 11 | 2♣x | ♦K | -3 | -3 |
| -5.4 | Quarterfinal | 🇵🇱 POLAND | 54 | 3♣ | = | -6 | |
| -5.9 | Round of 16 | 🇷🇴 ROMANIA | 10 | 6♠ | ♥7 | -1 | -17 |
| -6.0 | Quarterfinal | 🇵🇱 POLAND | 30 | 3♥ | ♠2 | +1 | -6 |
| -6.1 | Round of 16 | 🇷🇴 ROMANIA | 12 | 3NT | ♣9 | +1 | -11 |
| -6.1 | Quarterfinal | 🇵🇱 POLAND | 73 | 2NT | ♠3 | -1 | -12 |
| -6.7 | Round of 16 | 🇷🇴 ROMANIA | 36 | 2♠ | = | -6 | |
| -7.1 | Quarterfinal | 🇵🇱 POLAND | 38 | 5♣x | -1 | +0 | |
| -8.3 | Quarterfinal | 🇵🇱 POLAND | 52 | 6♦ | = | +0 | |
| -10.0 | Quarterfinal | 🇵🇱 POLAND | 61 | 2♠ | +2 | -10 | |
| -10.0 | Quarterfinal | 🇵🇱 POLAND | 78 | 4♦x | ♦3 | -3 | -8 |
| -10.1 | Quarterfinal | 🇵🇱 POLAND | 86 | 6♣ | ♠5 | = | +0 |
| -10.2 | Round of 16 | 🇷🇴 ROMANIA | 51 | 6♥ | = | +0 | |
| -11.1 | Quarterfinal | 🇵🇱 POLAND | 80 | 5♦ | ♦3 | -2 | -13 |
| -13.7 | Round of 16 | 🇷🇴 ROMANIA | 15 | 2♦x | ♦Q | -5 | -10 |