CHEN Kyo · JACK
vs par split: bidding +0.97 · play +0.42
Strength of schedule: opponents averaged +0.54/bd (a tough draw) → opponent-adjusted +0.89/bd
Card play — on target: opening leads 72.0% #106 of 144 · declarer play 84.2% #23 of 144 · defence 78.9% #82 of 144
Bidding activity — not a pass: 41.2% #76 of 144 (84/204)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 70.0% (10) | 73.3% (15) |
| Declarer play | 66.7% (3) | 87.5% (16) |
| Defence | 78.6% (14) | 79.2% (24) |
Opening leads by suit led: ♠ 66.7% (6) · ♥ 100.0% (8) · ♦ 100.0% (3) · ♣ 37.5% (8)
vs par by strain: NT +2.46 (22) · a suit +1.00 (58)
vs par by level: part-score +0.50 (38) · game +1.37 (38) · slam +10.25 (4)
By role: declaring +1.44/bd (+0.10 vs par · 42) · defending -0.86/bd (+2.84 vs par · 38)
By vulnerability: vulnerable +0.73/bd (+2.67 vs par · 40) · not vulnerable -0.03/bd (+0.12 vs par · 40)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | C.Chen | F.Cyran – J.Kutylowski | Closed | 8 | +21.1 | +2.64 | +3.38 |
| Round 2 | C.Chen | H.Ozibko – M.Adamczak | Open | 8 | +5.9 | +0.74 | +3.12 |
| Round 3 | C.Chen | F.Stezala – J.Michalski | Open | 8 | -13.4 | -1.68 | -1.38 |
| Round 4 | C.Chen | Y.Liu – Y.Ge | Closed | 8 | -12.9 | -1.61 | +2.25 |
| Round 5 | C.Chen | P.Slovakova – E.Konstacka | Closed | 8 | +12.3 | +1.54 | +0.75 |
| Round 6 | C.Chen | T.Chen – C.Wu | Open | 8 | -4.7 | -0.59 | +3.12 |
| Round 7 | C.Chen | Y.Huang – Y.Peng | Open | 8 | +2.9 | +0.36 | -0.12 |
| Round 8 | C.Chen | E.Liu – Y.Xu | Open | 8 | +14.2 | +1.77 | +2.38 |
| Round 9 | C.Chen | M.Nordqvist – F.Asplund Sivelind | Open | 8 | -18.2 | -2.27 | +1.50 |
| Round 10 | C.Chen | A.Gawel – A.Nagorny | Open | 8 | +20.7 | +2.59 | -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 |
|---|---|---|---|---|---|---|---|
| +11.6 | Round 8 | CHINA SMZY SPLINTER | 5 | 4♠ | ♥A | = | +16 |
| +11.4 | Round 2 | AZS UW WARSAW 1 | 8 | 6♦ | ♠J | +1 | +11 |
| +9.2 | Round 1 | SPOJNIA U16 RED | 26 | 3NT | ♣6 | +1 | +0 |
| +9.0 | Round 10 | VERCO | 26 | 3NT | ♥4 | -5 | +8 |
| +8.2 | Round 7 | CT U16 | 24 | 4♠x | ♣A | = | +10 |
| +7.7 | Round 1 | SPOJNIA U16 RED | 21 | 1NT | ♣2 | -1 | +10 |
| +7.6 | Round 4 | RDFZ | 26 | 6♠ | ♠2 | = | +0 |
| +6.9 | Round 5 | CZE HUN | 6 | 3NT | ♠2 | = | +0 |
| +6.6 | Round 9 | THE VIKINGS | 16 | 6NT | ♠3 | -1 | +17 |
| +5.9 | Round 6 | CT 360 | 17 | 5♣ | ♥5 | -2 | +11 |
| +5.7 | Round 5 | CZE HUN | 1 | 3NT | ♦Q | +1 | -1 |
| +5.4 | Round 10 | VERCO | 22 | 5♦ | ♠7 | = | +0 |
| +4.8 | Round 3 | POLAND | 13 | 3♠ | ♣3 | +1 | -1 |
| +4.8 | Round 10 | VERCO | 21 | 3NT | ♠3 | +1 | +1 |
| +4.3 | Round 2 | AZS UW WARSAW 1 | 2 | 3♠ | ♦A | = | +1 |
| +4.3 | Round 10 | VERCO | 28 | 3♥ | ♣A | = | +1 |
| +4.1 | Round 4 | RDFZ | 28 | 3♠ | ♣J | = | +7 |
| +4.1 | Round 8 | CHINA SMZY SPLINTER | 2 | 4♠ | ♠2 | +1 | +1 |
| +3.9 | Round 7 | CT U16 | 22 | 3♥ | ♦A | = | +1 |
| +3.8 | Round 5 | CZE HUN | 7 | 3♣ | ♦A | = | +6 |
| +3.3 | Round 10 | VERCO | 27 | 4♥ | ♦Q | = | -1 |
| +3.2 | Round 1 | SPOJNIA U16 RED | 24 | 4♥ | ♣4 | = | +0 |
| +3.2 | Round 1 | SPOJNIA U16 RED | 25 | 1♥ | ♦3 | = | +11 |
| +3.1 | Round 6 | CT 360 | 12 | 4♠ | ♣4 | -3 | +6 |
| +2.8 | Round 9 | THE VIKINGS | 15 | 3NT | ♠K | -4 | +3 |
| +2.6 | Round 5 | CZE HUN | 5 | 4♠ | ♦A | +2 | +1 |
| +2.5 | Round 8 | CHINA SMZY SPLINTER | 7 | 2♥ | ♥4 | +2 | +10 |
| +2.0 | Round 8 | CHINA SMZY SPLINTER | 1 | 2♥ | ♣3 | +2 | +1 |
| +1.7 | Round 5 | CZE HUN | 4 | 2♦ | ♥3 | +1 | +0 |
| +1.6 | Round 3 | POLAND | 15 | 4♠ | ♦7 | +1 | +0 |
| +1.5 | Round 6 | CT 360 | 14 | 4♠ | ♦A | +1 | +1 |
| +1.5 | Round 7 | CT U16 | 21 | 2♦ | ♦8 | +1 | +0 |
| +1.3 | Round 8 | CHINA SMZY SPLINTER | 8 | 3♣ | ♠2 | +2 | -6 |
| +1.1 | Round 2 | AZS UW WARSAW 1 | 4 | 5♥ | ♥6 | -3 | +15 |
| +1.1 | Round 4 | RDFZ | 25 | 3♠ | ♦T | -1 | -1 |
| +0.8 | Round 7 | CT U16 | 26 | 2♠ | ♦2 | +1 | +0 |
| +0.5 | Round 9 | THE VIKINGS | 14 | 3NT | ♥4 | +4 | +14 |
| +0.3 | Round 1 | SPOJNIA U16 RED | 28 | 5♥x | ♠A | -2 | -5 |
| +0.2 | Round 3 | POLAND | 17 | 3♠ | ♥T | -2 | -5 |
| +0.1 | Round 6 | CT 360 | 18 | 3♠ | ♣K | = | +0 |
| -0.0 | Round 1 | SPOJNIA U16 RED | 27 | 1♥ | ♠K | -1 | +2 |
| -0.0 | Round 5 | CZE HUN | 8 | 1NT | ♦A | -1 | -1 |
| -0.1 | Round 10 | VERCO | 24 | 2♥ | ♠5 | = | +0 |
| -0.3 | Round 2 | AZS UW WARSAW 1 | 5 | 3♥ | ♦2 | -1 | -3 |
| -0.5 | Round 6 | CT 360 | 15 | 2NT | ♦6 | +1 | +6 |
| -0.7 | Round 4 | RDFZ | 24 | 2♥ | ♣2 | -2 | +7 |
| -0.8 | Round 10 | VERCO | 25 | 3NT | ♥3 | -1 | -11 |
| -1.1 | Round 5 | CZE HUN | 3 | 1NT | ♥3 | -1 | +2 |
| -1.1 | Round 7 | CT U16 | 28 | 3♠ | ♣T | +1 | -1 |
| -1.2 | Round 1 | SPOJNIA U16 RED | 23 | 2NT | ♦2 | +1 | +7 |
| -1.3 | Round 1 | SPOJNIA U16 RED | 22 | 3♥ | ♣2 | -1 | +2 |
| -1.3 | Round 3 | POLAND | 18 | 4♠ | ♥J | +1 | +11 |
| -1.3 | Round 8 | CHINA SMZY SPLINTER | 3 | 4♥ | ♣K | -1 | -5 |
| -1.5 | Round 2 | AZS UW WARSAW 1 | 7 | 2♠ | ♣K | -1 | +0 |
| -1.6 | Round 2 | AZS UW WARSAW 1 | 3 | 2♠ | ♣Q | +3 | +9 |
| -2.0 | Round 4 | RDFZ | 27 | 2♠ | ♥4 | = | +1 |
| -2.1 | Round 3 | POLAND | 16 | 4♠ | ♥T | = | +0 |
| -2.4 | Round 8 | CHINA SMZY SPLINTER | 4 | 3NT | ♥3 | +2 | +12 |
| -2.5 | Round 3 | POLAND | 11 | 1NT | ♦4 | -2 | -5 |
| -2.5 | Round 7 | CT U16 | 27 | 1NT | ♠T | -3 | -7 |
| -2.7 | Round 6 | CT 360 | 13 | 2NT | ♠J | = | +0 |
| -3.0 | Round 9 | THE VIKINGS | 12 | 1NT | ♥3 | +2 | -1 |
| -3.1 | Round 7 | CT U16 | 23 | 5♥ | ♠3 | -1 | +1 |
| -3.4 | Round 2 | AZS UW WARSAW 1 | 1 | 4♠ | ♣6 | +1 | -1 |
| -3.6 | Round 8 | CHINA SMZY SPLINTER | 6 | 3♦ | ♠3 | -1 | -10 |
| -4.0 | Round 9 | THE VIKINGS | 18 | 3♠ | ♦5 | -1 | -12 |
| -4.1 | Round 2 | AZS UW WARSAW 1 | 6 | 3♥ | ♣Q | = | -7 |
| -4.8 | Round 3 | POLAND | 12 | 5♣ | ♠J | = | +2 |
| -4.8 | Round 7 | CT U16 | 25 | 1♠ | ♣5 | = | -5 |
| -5.2 | Round 10 | VERCO | 23 | 5♦ | ♥A | -1 | -6 |
| -5.3 | Round 9 | THE VIKINGS | 11 | 4♥ | ♠3 | -1 | -11 |
| -6.0 | Round 6 | CT 360 | 16 | 3NT | ♣6 | +1 | +0 |
| -6.1 | Round 6 | CT 360 | 11 | 5♦ | ♣8 | = | +1 |
| -6.2 | Round 4 | RDFZ | 21 | 4♠x | ♣K | -2 | -2 |
| -6.4 | Round 9 | THE VIKINGS | 17 | 4♥ | ♣A | = | +1 |
| -6.6 | Round 4 | RDFZ | 22 | 4♥ | ♣5 | -2 | -7 |
| -7.3 | Round 5 | CZE HUN | 2 | 3NT | ♠4 | +1 | -1 |
| -9.3 | Round 3 | POLAND | 14 | 5♠ | ♦A | -1 | -13 |
| -9.4 | Round 9 | THE VIKINGS | 13 | 3NT | ♥3 | = | +1 |
| -10.2 | Round 4 | RDFZ | 23 | 6♠ | ♥9 | +1 | +13 |