JASSEM Krzysztof · MAZURKIEWICZ
vs par split: bidding -0.02 · play +0.84
Strength of schedule: opponents averaged +0.10/bd (a tough draw) → opponent-adjusted +0.25/bd
Card play — on target: opening leads 78.3% #145 of 310 · declarer play 60.0% #272 of 310 · defence 88.9% #110 of 311
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 88.9% (9) | 71.4% (14) |
| Declarer play | 50.0% (2) | 66.7% (3) |
| Defence | 77.8% (9) | 94.4% (18) |
Opening leads by suit led: ♠ 85.7% (7) · ♥ 100.0% (7) · ♦ 20.0% (5) · ♣ 100.0% (4)
vs par by strain: NT -0.93 (14) · a suit +1.51 (35)
vs par by level: part-score +0.65 (23) · game +1.04 (22) · slam +0.50 (4)
By role: declaring +1.16/bd (-1.41 vs par · 22) · defending -0.67/bd (+2.63 vs par · 27)
By vulnerability: vulnerable +1.17/bd (+1.58 vs par · 24) · not vulnerable -0.82/bd (+0.08 vs par · 25)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | M.Mazurkiewicz | M.Seamon – J.Cayne | Open | 7 | -1.8 | -0.26 | -0.43 |
| Round 2 | M.Mazurkiewicz | K.Anklesaria – S.Chokshi | Open | 7 | +6.3 | +0.90 | +5.00 |
| Round 3 | M.Mazurkiewicz | M.Rosenberg – C.Willenken | Open | 7 | -7.9 | -1.13 | -0.86 |
| Round 4 | M.Mazurkiewicz | F.Yu – N.Liu | Open | 7 | +5.6 | +0.80 | +2.71 |
| Round 5 | M.Mazurkiewicz | M.Barel – Y.Zack | Closed | 7 | +17.6 | +2.51 | +1.86 |
| Round 7 | M.Mazurkiewicz | J.Li – Z.Fu | Open | 7 | +0.5 | +0.07 | -0.71 |
| Round 8 | M.Mazurkiewicz | E.Ginossar – N.Demirev | Closed | 7 | -12.8 | -1.83 | -1.86 |
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 |
|---|---|---|---|---|---|---|---|
| +12.2 | Round 2 | FORMIDABLES | 10 | 2♠x | ♣Q | = | +15 |
| +10.0 | Round 5 | MCALLISTER | 4 | 4♠ | ♣9 | = | +10 |
| +9.3 | Round 7 | P D TIMES | 15 | 4♠ | ♥4 | = | +0 |
| +5.7 | Round 4 | CHINA FINANCE BRIDGE ASSOCIATI | 28 | 3NT | ♠2 | = | +3 |
| +4.9 | Round 4 | CHINA FINANCE BRIDGE ASSOCIATI | 23 | 5♣ | ♦7 | -1 | +6 |
| +4.5 | Round 5 | MCALLISTER | 2 | 4♣ | ♣9 | -2 | +6 |
| +4.2 | Round 7 | P D TIMES | 19 | 2♥ | ♠J | -1 | +6 |
| +3.9 | Round 3 | FLEISHER | 17 | 4♠ | ♠2 | -1 | +8 |
| +3.4 | Round 1 | CAYNE | 2 | 2♦ | ♠5 | +1 | +11 |
| +3.2 | Round 2 | FORMIDABLES | 12 | 3♦ | ♣2 | = | +5 |
| +3.1 | Round 5 | MCALLISTER | 7 | 6♥ | ♠A | = | +0 |
| +2.4 | Round 1 | CAYNE | 1 | 3NT | ♦6 | = | -1 |
| +2.3 | Round 3 | FLEISHER | 16 | 1NT | ♠4 | = | +8 |
| +2.3 | Round 5 | MCALLISTER | 5 | 4♠ | ♠2 | -1 | +10 |
| +2.2 | Round 8 | WEINSTEIN | 24 | 4♠ | ♥J | -1 | +5 |
| +1.7 | Round 1 | CAYNE | 3 | 3♠ | ♣K | -2 | -1 |
| +1.6 | Round 2 | FORMIDABLES | 14 | 3NT | ♣5 | -1 | +4 |
| +1.3 | Round 4 | CHINA FINANCE BRIDGE ASSOCIATI | 26 | 2♥ | ♣Q | = | +0 |
| +1.0 | Round 5 | MCALLISTER | 6 | 6NT | ♠10 | = | -11 |
| +0.9 | Round 4 | CHINA FINANCE BRIDGE ASSOCIATI | 27 | 4♠ | ♦J | = | +11 |
| +0.9 | Round 8 | WEINSTEIN | 28 | 4♠ | ♦J | = | +3 |
| +0.7 | Round 7 | P D TIMES | 17 | 4♥ | ♦7 | -2 | +7 |
| +0.3 | Round 3 | FLEISHER | 15 | 4♥ | ♠10 | +2 | -11 |
| +0.1 | Round 4 | CHINA FINANCE BRIDGE ASSOCIATI | 25 | 3NT | ♠Q | = | +0 |
| -0.1 | Round 1 | CAYNE | 4 | 3♥ | ♦3 | = | +10 |
| -0.1 | Round 5 | MCALLISTER | 1 | 4♥ | ♣A | = | -1 |
| -0.2 | Round 2 | FORMIDABLES | 9 | 2♠ | ♥4 | = | -1 |
| -0.9 | Round 2 | FORMIDABLES | 8 | 1NT | ♠2 | +1 | +0 |
| -1.2 | Round 2 | FORMIDABLES | 11 | 3♠ | ♥8 | = | -1 |
| -1.3 | Round 3 | FLEISHER | 20 | 1NT | ♥J | +2 | +1 |
| -1.4 | Round 8 | WEINSTEIN | 23 | 1NT | ♠Q | = | +1 |
| -1.7 | Round 1 | CAYNE | 6 | 2NT | ♥4 | = | -10 |
| -1.9 | Round 7 | P D TIMES | 20 | 2♠ | ♥2 | = | +0 |
| -2.1 | Round 4 | CHINA FINANCE BRIDGE ASSOCIATI | 24 | 2NT | ♥4 | = | -1 |
| -2.1 | Round 8 | WEINSTEIN | 22 | 3♦ | ♠J | -2 | +1 |
| -2.3 | Round 3 | FLEISHER | 19 | 4♠ | ♦K | = | -6 |
| -2.5 | Round 3 | FLEISHER | 18 | 3♥ | ♦2 | = | -6 |
| -2.6 | Round 1 | CAYNE | 7 | 4♠ | ♣8 | -1 | -6 |
| -2.6 | Round 7 | P D TIMES | 21 | 6♠ | ♥5 | = | +0 |
| -3.2 | Round 5 | MCALLISTER | 3 | 3NT | ♦J | +1 | -1 |
| -3.7 | Round 8 | WEINSTEIN | 26 | 3♦ | ♥Q | +1 | -11 |
| -3.7 | Round 8 | WEINSTEIN | 27 | 3♠ | ♦Q | +1 | -6 |
| -4.0 | Round 7 | P D TIMES | 18 | 5♦ | ♠A | +1 | -13 |
| -4.9 | Round 1 | CAYNE | 5 | 2♠ | ♠5 | = | -6 |
| -5.0 | Round 8 | WEINSTEIN | 25 | 1NT | ♥7 | = | -6 |
| -5.2 | Round 4 | CHINA FINANCE BRIDGE ASSOCIATI | 22 | 3NT | ♣8 | = | +0 |
| -5.2 | Round 7 | P D TIMES | 16 | 5♥x | ♦5 | -2 | -5 |
| -8.3 | Round 3 | FLEISHER | 21 | 5♣ | ♥2 | = | +0 |
| -8.4 | Round 2 | FORMIDABLES | 13 | 6♠ | ♥5 | +1 | +13 |