KORBEL Daniel · ZHANG
vs par split: bidding -0.50 · play +0.33
Strength of schedule: opponents averaged +0.23/bd (a tough draw) → opponent-adjusted +0.12/bd
Card play — on target: opening leads 87.5% #46 of 241 · declarer play 88.0% #22 of 241 · defence 90.0% #54 of 241
Bidding activity — not a pass: 38.6% #195 of 241 (93/241)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 85.7% (7) | 88.2% (17) |
| Declarer play | 88.9% (9) | 87.5% (16) |
| Defence | 92.3% (13) | 88.9% (27) |
Opening leads by suit led: ♠ 83.3% (6) · ♥ 75.0% (4) · ♦ 100.0% (7) · ♣ 85.7% (7)
vs par by strain: NT +0.29 (28) · a suit -0.39 (56)
vs par by level: part-score -0.25 (20) · game +0.34 (58) · slam -4.83 (6)
By role: declaring -0.55/bd (-3.14 vs par · 44) · defending +0.38/bd (+3.10 vs par · 40)
By vulnerability: vulnerable +0.67/bd (+1.45 vs par · 42) · not vulnerable -0.89/bd (-1.79 vs par · 42)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | S.Zhang | B.Radko – D.Kaszowski | Open | 14 | -9.9 | -0.71 | -1.86 |
| Round 2 | S.Zhang | P.Solecki – S.Janik | Closed | 14 | -4.8 | -0.34 | -1.21 |
| Round 5 | S.Zhang | P.Umshaus – C.Terraneo | Closed | 14 | -10.3 | -0.74 | -2.21 |
| Round 6 | S.Zhang | W.Wnuk – J.Adamczak | Closed | 14 | +14.8 | +1.06 | +3.29 |
| Round 7 | S.Zhang | D.Lucka – N.Suszanowicz | Closed | 14 | -21.1 | -1.51 | -0.29 |
| Round 8 | S.Zhang | P.Suchodolski – A.Jarzabkowski | Closed | 14 | +22.1 | +1.58 | +1.29 |
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 |
|---|---|---|---|---|---|---|---|
| +11.8 | Round 6 | POLAND U21 A | 15 | 4♠ | ♣2 | +3 | +17 |
| +11.0 | Round 2 | LYSY SOLEK | 25 | 3NT | ♥T | +1 | +11 |
| +9.6 | Round 5 | LOIBEN | 9 | 6♦ | ♠Q | -2 | +14 |
| +7.1 | Round 8 | GDANSK | 26 | 1♣ | ♣4 | = | +12 |
| +5.8 | Round 6 | POLAND U21 A | 28 | 4♠ | ♣7 | -1 | +6 |
| +5.6 | Round 1 | 4EKO2FAZOKLUB0 | 4 | 4♠ | ♦K | -1 | +12 |
| +5.0 | Round 1 | 4EKO2FAZOKLUB0 | 3 | 4♠x | ♥T | -2 | +5 |
| +5.0 | Round 7 | ESKOM | 11 | 4♠ | ♦J | +2 | +11 |
| +4.6 | Round 8 | GDANSK | 22 | 4♠ | ♦J | -2 | +11 |
| +4.5 | Round 8 | GDANSK | 27 | 3♠ | ♥3 | -1 | +5 |
| +4.3 | Round 5 | LOIBEN | 12 | 6NT | ♠6 | = | +0 |
| +4.3 | Round 8 | GDANSK | 15 | 3NT | ♦6 | +1 | +1 |
| +4.2 | Round 6 | POLAND U21 A | 23 | 3NT | ♥7 | +1 | +12 |
| +4.0 | Round 1 | 4EKO2FAZOKLUB0 | 6 | 3NT | ♣Q | = | +0 |
| +3.9 | Round 7 | ESKOM | 13 | 4♥ | ♦5 | -3 | +9 |
| +3.5 | Round 8 | GDANSK | 20 | 2♦ | ♣8 | = | +5 |
| +3.1 | Round 6 | POLAND U21 A | 25 | 1NT | ♥4 | -2 | +0 |
| +2.9 | Round 8 | GDANSK | 18 | 5♦ | ♠7 | = | +0 |
| +2.8 | Round 1 | 4EKO2FAZOKLUB0 | 9 | 3NT | ♠J | -1 | +10 |
| +2.7 | Round 2 | LYSY SOLEK | 21 | 2NT | ♦Q | +1 | -2 |
| +2.6 | Round 8 | GDANSK | 24 | 3♥ | ♣9 | = | +0 |
| +2.3 | Round 2 | LYSY SOLEK | 17 | 4♠ | ♠J | -1 | -2 |
| +2.1 | Round 6 | POLAND U21 A | 22 | 4♥ | ♠J | -1 | +5 |
| +2.0 | Round 5 | LOIBEN | 2 | 3NT | ♠4 | = | +0 |
| +1.8 | Round 2 | LYSY SOLEK | 26 | 4♠ | ♥9 | +1 | +1 |
| +1.8 | Round 7 | ESKOM | 3 | 2♠ | ♣J | +3 | -3 |
| +1.7 | Round 1 | 4EKO2FAZOKLUB0 | 14 | 3NT | ♠T | +1 | +0 |
| +1.4 | Round 6 | POLAND U21 A | 21 | 1NT | ♠8 | +1 | +6 |
| +1.3 | Round 2 | LYSY SOLEK | 28 | 4♠ | ♣7 | = | +1 |
| +1.2 | Round 1 | 4EKO2FAZOKLUB0 | 7 | 4♠ | ♣A | = | +1 |
| +1.2 | Round 6 | POLAND U21 A | 20 | 4♥ | ♠T | +1 | +0 |
| +1.0 | Round 2 | LYSY SOLEK | 24 | 2♥ | ♠6 | -1 | +5 |
| +1.0 | Round 5 | LOIBEN | 3 | 2♠ | ♦2 | +3 | -9 |
| +1.0 | Round 8 | GDANSK | 21 | 3NT | ♠Q | +2 | -10 |
| +0.8 | Round 8 | GDANSK | 23 | 4♠ | ♦A | -2 | +7 |
| +0.6 | Round 7 | ESKOM | 9 | 4♠ | ♣3 | +1 | +0 |
| +0.6 | Round 8 | GDANSK | 25 | 4♠ | ♣J | = | -1 |
| +0.4 | Round 7 | ESKOM | 2 | 4♥ | ♣5 | -1 | +12 |
| +0.4 | Round 8 | GDANSK | 19 | 4♠ | ♦J | +1 | +0 |
| +0.3 | Round 1 | 4EKO2FAZOKLUB0 | 2 | 4♥ | ♠8 | = | -1 |
| +0.3 | Round 6 | POLAND U21 A | 26 | 4♥ | ♣7 | = | -1 |
| +0.1 | Round 2 | LYSY SOLEK | 15 | 3NT | ♣4 | -1 | -5 |
| +0.1 | Round 5 | LOIBEN | 1 | 4♠ | ♦6 | +2 | +11 |
| -0.0 | Round 1 | 4EKO2FAZOKLUB0 | 10 | 3NT | ♣5 | -2 | +2 |
| -0.0 | Round 7 | ESKOM | 7 | 3NT | ♥2 | -2 | +0 |
| -0.0 | Round 8 | GDANSK | 17 | 4♣ | ♥A | -4 | +6 |
| -0.2 | Round 2 | LYSY SOLEK | 20 | 1NT | ♠4 | +1 | +0 |
| -0.6 | Round 7 | ESKOM | 4 | 3NT | ♥5 | = | +0 |
| -0.6 | Round 7 | ESKOM | 6 | 3NT | ♠J | = | -1 |
| -0.7 | Round 2 | LYSY SOLEK | 22 | 3NT | ♦3 | +1 | +10 |
| -0.9 | Round 5 | LOIBEN | 10 | 4♠ | ♣K | -1 | -6 |
| -0.9 | Round 6 | POLAND U21 A | 16 | 4♥ | ♦A | +1 | +0 |
| -1.1 | Round 5 | LOIBEN | 14 | 4♠ | ♣A | +1 | -1 |
| -1.1 | Round 6 | POLAND U21 A | 19 | 3NT | ♠J | +3 | +10 |
| -1.2 | Round 5 | LOIBEN | 7 | 6♥ | ♣6 | -1 | -17 |
| -1.6 | Round 5 | LOIBEN | 6 | 4♥ | ♥3 | +2 | +1 |
| -1.9 | Round 6 | POLAND U21 A | 27 | 3NT | ♥6 | = | +0 |
| -1.9 | Round 8 | GDANSK | 28 | 2NT | ♠K | +1 | -6 |
| -2.2 | Round 2 | LYSY SOLEK | 27 | 1NT | ♠J | = | -6 |
| -2.3 | Round 2 | LYSY SOLEK | 16 | 2♠ | ♥8 | +1 | +0 |
| -2.3 | Round 7 | ESKOM | 1 | 2♠ | ♣8 | -1 | -4 |
| -2.4 | Round 1 | 4EKO2FAZOKLUB0 | 8 | 4♠ | ♦7 | +2 | -11 |
| -2.4 | Round 7 | ESKOM | 10 | 2NT | ♥5 | = | +0 |
| -2.4 | Round 7 | ESKOM | 14 | 4♥ | ♠6 | +1 | -4 |
| -2.7 | Round 1 | 4EKO2FAZOKLUB0 | 12 | 4♥ | ♠A | -1 | -5 |
| -2.8 | Round 6 | POLAND U21 A | 24 | 7♠ | ♣K | = | +0 |
| -3.4 | Round 1 | 4EKO2FAZOKLUB0 | 13 | 4♥ | ♣2 | +2 | -9 |
| -3.4 | Round 5 | LOIBEN | 8 | 1NT | ♦2 | = | -5 |
| -3.6 | Round 6 | POLAND U21 A | 17 | 4♠ | ♦4 | -2 | -7 |
| -3.6 | Round 7 | ESKOM | 5 | 4♠ | ♣A | = | +0 |
| -3.7 | Round 5 | LOIBEN | 4 | 3NT | ♠5 | = | +1 |
| -4.3 | Round 5 | LOIBEN | 11 | 4♠ | ♣6 | -1 | -10 |
| -4.8 | Round 6 | POLAND U21 A | 18 | 4♣ | ♠6 | = | -2 |
| -5.1 | Round 2 | LYSY SOLEK | 18 | 4♥ | ♦A | -1 | -10 |
| -5.4 | Round 1 | 4EKO2FAZOKLUB0 | 1 | 3NT | ♠2 | = | -6 |
| -5.5 | Round 5 | LOIBEN | 13 | 4♥ | ♠3 | = | +1 |
| -5.6 | Round 5 | LOIBEN | 5 | 4♥ | ♦A | -2 | -11 |
| -6.3 | Round 1 | 4EKO2FAZOKLUB0 | 11 | 5♣ | ♣5 | -1 | -10 |
| -6.4 | Round 2 | LYSY SOLEK | 23 | 4♠ | ♣A | = | -13 |
| -8.1 | Round 2 | LYSY SOLEK | 19 | 4♦ | ♥7 | -4 | -7 |
| -8.3 | Round 8 | GDANSK | 16 | 7♥x | ♦A | -1 | -12 |
| -10.3 | Round 1 | 4EKO2FAZOKLUB0 | 5 | 4♠x | ♥8 | -3 | -14 |
| -10.4 | Round 7 | ESKOM | 12 | 4♠ | ♣3 | = | -10 |
| -10.5 | Round 7 | ESKOM | 8 | 6NT | ♠J | -1 | -14 |