JASSEM Krzysztof · MAZURKIEWICZ
vs par split: bidding +0.23 · play -0.22
Strength of schedule: opponents averaged +0.07/bd (a tough draw) → opponent-adjusted +1.17/bd
Card play — on target: opening leads 76.5% #355 of 551 · declarer play 64.3% #437 of 551 · defence 83.9% #304 of 552
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 62.5% (8) | 88.9% (9) |
| Declarer play | 60.0% (5) | 66.7% (9) |
| Defence | 84.6% (13) | 83.3% (18) |
Opening leads by suit led: ♠ 50.0% (4) · ♥ 100.0% (2) · ♦ 83.3% (6) · ♣ 80.0% (5)
vs par by strain: NT -0.38 (24) · a suit +0.28 (36)
vs par by level: part-score +0.25 (24) · game -0.97 (31) · slam +5.00 (5)
By role: declaring +1.15/bd (-2.65 vs par · 29) · defending +1.04/bd (+2.52 vs par · 31)
By vulnerability: vulnerable +0.29/bd (+0.47 vs par · 32) · not vulnerable +2.02/bd (-0.50 vs par · 28)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 2 | M.Mazurkiewicz | A.Goel – S.Vaidya | Open | 10 | +12.5 | +1.25 | -0.10 |
| Round 4 | M.Mazurkiewicz | B.Basaran – M.Sen | Closed | 10 | +12.1 | +1.21 | +1.70 |
| Round 5 | M.Mazurkiewicz | C.Mariani – M.Buratti | Closed | 10 | +5.2 | +0.52 | -0.40 |
| Round 6 | M.Mazurkiewicz | A.Livgard – T.Aa | Closed | 10 | +19.8 | +1.98 | +1.10 |
| Round 8 | M.Mazurkiewicz | J.Herland – S.Froeyland | Closed | 10 | -4.1 | -0.41 | -1.00 |
| Round 10 | M.Mazurkiewicz | B.Marina – I.Coldea | Closed | 10 | +20.3 | +2.03 | -1.20 |
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 |
|---|---|---|---|---|---|---|---|
| +13.7 | Round 6 | IRENS | 30 | 7♦x | ♥9 | -1 | +14 |
| +10.1 | Round 6 | IRENS | 28 | 7♠ | ♥K | = | +0 |
| +9.2 | Round 5 | PAUNCZ | 16 | 5♣ | ♠4 | = | +6 |
| +7.7 | Round 2 | DAR INDIA | 17 | 3NT | ♦5 | -1 | +5 |
| +7.3 | Round 10 | COLDEA | 9 | 3♦ | ♣3 | -2 | +11 |
| +6.9 | Round 10 | COLDEA | 4 | 5♦ | ♣Q | = | +0 |
| +5.8 | Round 8 | STOKKEN | 19 | 3NT | ♥2 | +2 | +1 |
| +5.3 | Round 10 | COLDEA | 3 | 5♠x | ♦K | -4 | -7 |
| +5.2 | Round 4 | YAMATA | 4 | 2NT | ♠9 | +2 | +9 |
| +5.1 | Round 4 | YAMATA | 5 | 6♥ | ♠10 | = | +0 |
| +4.8 | Round 8 | STOKKEN | 17 | 4♠x | ♠2 | -2 | +0 |
| +4.7 | Round 4 | YAMATA | 10 | 4♥ | ♠5 | -1 | +6 |
| +4.7 | Round 10 | COLDEA | 10 | 2NT | ♥6 | = | +0 |
| +4.1 | Round 2 | DAR INDIA | 18 | 6♦ | ♠10 | = | -2 |
| +3.4 | Round 2 | DAR INDIA | 12 | 4♥x | ♦4 | -2 | +5 |
| +2.9 | Round 5 | PAUNCZ | 15 | 1NT | ♣7 | -1 | +10 |
| +2.8 | Round 5 | PAUNCZ | 14 | 3NT | ♥3 | = | -11 |
| +2.7 | Round 5 | PAUNCZ | 19 | 5♣x | ♥A | = | -9 |
| +2.5 | Round 6 | IRENS | 25 | 3♠ | ♦K | = | +0 |
| +2.4 | Round 6 | IRENS | 26 | 3♦ | ♦8 | -1 | +0 |
| +2.2 | Round 5 | PAUNCZ | 13 | 3NT | ♥7 | +2 | +0 |
| +2.0 | Round 4 | YAMATA | 3 | 4♠ | ♣3 | -1 | +5 |
| +1.9 | Round 2 | DAR INDIA | 19 | 4♠ | ♦4 | -1 | +6 |
| +1.7 | Round 10 | COLDEA | 8 | 2NT | ♠J | -1 | +4 |
| +1.4 | Round 2 | DAR INDIA | 20 | 4♠ | ♦A | +1 | +0 |
| +1.4 | Round 4 | YAMATA | 8 | 4♣ | ♠10 | = | +1 |
| +1.3 | Round 8 | STOKKEN | 16 | 4♥ | ♣3 | = | +0 |
| +1.1 | Round 2 | DAR INDIA | 16 | 3NT | ♠10 | +2 | +0 |
| +0.3 | Round 8 | STOKKEN | 14 | 2♥ | ♣4 | +1 | +1 |
| +0.2 | Round 2 | DAR INDIA | 13 | 2♠ | ♣2 | -2 | -7 |
| +0.2 | Round 5 | PAUNCZ | 17 | 3♦ | ♥2 | -2 | -1 |
| +0.2 | Round 10 | COLDEA | 7 | 3NT | ♠6 | +1 | +1 |
| +0.0 | Round 6 | IRENS | 24 | 3NT | ♥6 | +1 | +1 |
| -0.1 | Round 10 | COLDEA | 6 | 1NT | ♣Q | -2 | +0 |
| -0.2 | Round 6 | IRENS | 21 | 1♠ | ♦3 | = | -1 |
| -0.3 | Round 5 | PAUNCZ | 11 | 2♠ | ♥3 | = | +0 |
| -0.3 | Round 6 | IRENS | 23 | 3♥ | ♦K | = | -1 |
| -0.5 | Round 8 | STOKKEN | 13 | 3NT | ♣A | -3 | +5 |
| -0.6 | Round 8 | STOKKEN | 12 | 3NT | ♣7 | +1 | +0 |
| -0.7 | Round 2 | DAR INDIA | 14 | 3NT | ♣5 | +2 | -1 |
| -0.7 | Round 4 | YAMATA | 6 | 1NT | ♠Q | +1 | +0 |
| -0.8 | Round 6 | IRENS | 27 | 2♠ | ♦Q | = | +1 |
| -1.0 | Round 2 | DAR INDIA | 11 | 4♠ | ♥Q | = | +0 |
| -1.0 | Round 6 | IRENS | 22 | 5♣ | ♥K | -1 | -5 |
| -1.1 | Round 4 | YAMATA | 2 | 1NT | ♠Q | = | -1 |
| -1.1 | Round 10 | COLDEA | 2 | 3NT | ♠K | +1 | -10 |
| -1.3 | Round 4 | YAMATA | 7 | 1NT | ♠Q | +2 | -1 |
| -1.3 | Round 4 | YAMATA | 9 | 4♥ | ♣7 | +1 | +0 |
| -1.3 | Round 8 | STOKKEN | 15 | 2♥ | ♦K | +2 | +6 |
| -1.5 | Round 8 | STOKKEN | 11 | 4♠ | ♦3 | -3 | -7 |
| -1.5 | Round 10 | COLDEA | 5 | 2♥ | ♦Q | +2 | -6 |
| -1.9 | Round 4 | YAMATA | 1 | 3♣x | ♠6 | -3 | -2 |
| -3.1 | Round 10 | COLDEA | 1 | 3NT | ♠8 | -2 | -5 |
| -3.2 | Round 5 | PAUNCZ | 20 | 6♣ | ♣J | +1 | +13 |
| -5.4 | Round 8 | STOKKEN | 18 | 3NT | ♦3 | -1 | -6 |
| -5.5 | Round 5 | PAUNCZ | 12 | 3NT | ♣9 | -1 | -12 |
| -5.6 | Round 2 | DAR INDIA | 15 | 3♦ | ♦6 | -2 | -7 |
| -5.8 | Round 5 | PAUNCZ | 18 | 3NT | ♥7 | = | +0 |
| -6.6 | Round 6 | IRENS | 29 | 3NT | ♦6 | = | +2 |
| -7.0 | Round 8 | STOKKEN | 20 | 2♠ | ♥A | -2 | -10 |