SOBCZAK Mateusz · OLBACI
vs par split: bidding +0.52 · play -0.96
Strength of schedule: opponents averaged -0.13/bd (an easy draw) → opponent-adjusted -0.76/bd
Card play — on target: opening leads 73.7% #396 of 675 · declarer play 59.1% #645 of 675 · defence 83.7% #444 of 675
Bidding activity — not a pass: 39.6% #534 of 675 (91/230)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 71.4% (7) | 75.0% (12) |
| Declarer play | 66.7% (12) | 50.0% (10) |
| Defence | 88.9% (18) | 80.0% (25) |
Opening leads by suit led: ♠ 75.0% (4) · ♥ 75.0% (4) · ♦ 50.0% (6) · ♣ 100.0% (5)
vs par by strain: NT -0.80 (39) · a suit -0.13 (45)
vs par by level: part-score -1.11 (26) · game -0.78 (55) · slam +11.67 (3)
By role: declaring -1.11/bd (-3.71 vs par · 41) · defending -0.17/bd (+2.67 vs par · 43)
By vulnerability: vulnerable -1.59/bd (-1.41 vs par · 42) · not vulnerable +0.33/bd (+0.52 vs par · 42)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | G.Bajek | G.Chagas – A.Bianchedi | Open | 14 | -48.1 | -3.44 | -3.93 |
| Round 2 | G.Bajek | D.Doub – A.Wildavsky | Open | 14 | -5.0 | -0.36 | +2.21 |
| Round 3 | G.Bajek | T.Jiang – J.Tao | Closed | 14 | -9.6 | -0.69 | +0.29 |
| Round 4 | A.Kozikowski | P.Stezala – W.Bondarewicz | Closed | 14 | +18.6 | +1.33 | +2.29 |
| Round 5 | G.Bajek | J.Tomcani – M.Vodicka | Open | 14 | -17.5 | -1.25 | -2.71 |
| Round 6 | G.Bajek | A.Tarlecki – J.Bojanowski | Open | 14 | +9.0 | +0.64 | -0.79 |
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 4 | SZCZECIN UNIVERSITY | 17 | 6NT | ♠T | +1 | +11 |
| +9.5 | Round 6 | TWOB | 15 | 5♠ | ♥K | -2 | +7 |
| +7.8 | Round 5 | CZECHOSLOVAKIA V2 | 6 | 3NT | ♣K | -1 | +11 |
| +7.4 | Round 3 | CHINA EVERTRUST | 6 | 4♠ | ♦K | = | +8 |
| +7.3 | Round 6 | TWOB | 24 | 3NT | ♦3 | -1 | +10 |
| +7.1 | Round 6 | TWOB | 17 | 5♥ | ♠6 | = | +4 |
| +6.5 | Round 2 | REASON | 23 | 4♣ | ♥K | +2 | +14 |
| +6.4 | Round 1 | CAMBEROS | 5 | 3NT | ♦3 | +1 | +7 |
| +4.7 | Round 5 | CZECHOSLOVAKIA V2 | 2 | 3NT | ♣Q | +1 | +1 |
| +4.6 | Round 4 | SZCZECIN UNIVERSITY | 20 | 3NT | ♣Q | -1 | +6 |
| +4.5 | Round 2 | REASON | 17 | 3♠ | ♦J | -2 | +8 |
| +4.5 | Round 2 | REASON | 20 | 6♥ | ♠A | -1 | +13 |
| +4.5 | Round 3 | CHINA EVERTRUST | 14 | 3♥ | ♦A | +1 | +4 |
| +4.4 | Round 3 | CHINA EVERTRUST | 2 | 4♠ | ♣5 | -2 | +12 |
| +3.6 | Round 4 | SZCZECIN UNIVERSITY | 23 | 3NT | ♥9 | -1 | +12 |
| +3.5 | Round 1 | CAMBEROS | 14 | 2♠ | ♦6 | +1 | +1 |
| +3.3 | Round 6 | TWOB | 18 | 4♥ | ♣4 | +1 | -11 |
| +2.6 | Round 2 | REASON | 22 | 6♣ | ♣7 | +1 | +11 |
| +2.5 | Round 4 | SZCZECIN UNIVERSITY | 24 | 4♠ | ♣4 | -1 | +10 |
| +2.5 | Round 4 | SZCZECIN UNIVERSITY | 25 | 3♠ | ♦K | -1 | +5 |
| +2.4 | Round 4 | SZCZECIN UNIVERSITY | 21 | 2♠ | ♠9 | -1 | +0 |
| +1.9 | Round 1 | CAMBEROS | 12 | 4♥ | ♦K | = | +0 |
| +1.9 | Round 6 | TWOB | 27 | 3NT | ♥7 | +1 | +10 |
| +1.8 | Round 3 | CHINA EVERTRUST | 7 | 2NT | ♦J | = | +1 |
| +1.0 | Round 1 | CAMBEROS | 10 | 2♥ | ♦J | +1 | +10 |
| +1.0 | Round 1 | CAMBEROS | 11 | 4♠ | ♥4 | = | -1 |
| +1.0 | Round 4 | SZCZECIN UNIVERSITY | 15 | 3NT | ♠J | = | -1 |
| +0.8 | Round 4 | SZCZECIN UNIVERSITY | 18 | 4♠ | ♥A | +2 | +12 |
| +0.8 | Round 4 | SZCZECIN UNIVERSITY | 27 | 3NT | ♥4 | = | +0 |
| +0.8 | Round 6 | TWOB | 20 | 3♦ | ♠3 | -1 | -11 |
| +0.8 | Round 6 | TWOB | 23 | 3NT | ♣K | +2 | +0 |
| +0.5 | Round 2 | REASON | 28 | 3NT | ♥2 | +1 | +0 |
| +0.4 | Round 5 | CZECHOSLOVAKIA V2 | 3 | 4♥ | ♣6 | = | +1 |
| +0.3 | Round 6 | TWOB | 19 | 3NT | ♠4 | +1 | +0 |
| +0.2 | Round 3 | CHINA EVERTRUST | 3 | 4♥ | ♠A | +1 | +11 |
| +0.2 | Round 4 | SZCZECIN UNIVERSITY | 19 | 2♠ | ♦4 | +1 | -10 |
| +0.2 | Round 5 | CZECHOSLOVAKIA V2 | 13 | 3♠ | ♦4 | = | +0 |
| +0.1 | Round 3 | CHINA EVERTRUST | 9 | 3NT | ♠4 | -2 | -8 |
| -0.0 | Round 4 | SZCZECIN UNIVERSITY | 28 | 5♥x | ♠A | -2 | +2 |
| -0.1 | Round 6 | TWOB | 28 | 1NT | ♠Q | -1 | +2 |
| -0.3 | Round 2 | REASON | 25 | 4♥ | ♥6 | +1 | +0 |
| -0.3 | Round 2 | REASON | 27 | 3♥ | ♠K | -2 | +1 |
| -0.5 | Round 5 | CZECHOSLOVAKIA V2 | 1 | 3NT | ♣2 | = | +1 |
| -0.6 | Round 2 | REASON | 16 | 1NT | ♦T | -1 | -5 |
| -0.7 | Round 2 | REASON | 15 | 3NT | ♥8 | +1 | +0 |
| -0.7 | Round 5 | CZECHOSLOVAKIA V2 | 10 | 1NT | ♥J | = | -5 |
| -0.7 | Round 6 | TWOB | 22 | 3NT | ♠4 | +2 | +0 |
| -1.0 | Round 3 | CHINA EVERTRUST | 1 | 3NT | ♦9 | = | +0 |
| -1.4 | Round 4 | SZCZECIN UNIVERSITY | 16 | 3NT | ♥4 | +1 | +0 |
| -1.5 | Round 3 | CHINA EVERTRUST | 10 | 1NT | ♠Q | -3 | +7 |
| -1.5 | Round 5 | CZECHOSLOVAKIA V2 | 7 | 3NT | ♦4 | +3 | -13 |
| -1.8 | Round 1 | CAMBEROS | 1 | 3NT | ♠5 | -2 | -5 |
| -1.8 | Round 3 | CHINA EVERTRUST | 12 | 3♦ | ♣6 | -2 | -5 |
| -1.9 | Round 6 | TWOB | 25 | 1NT | ♥3 | = | +1 |
| -2.1 | Round 1 | CAMBEROS | 8 | 4♠ | ♥K | -1 | -5 |
| -2.6 | Round 2 | REASON | 18 | 2NT | ♠A | = | -1 |
| -2.6 | Round 5 | CZECHOSLOVAKIA V2 | 11 | 3NT | ♠8 | +1 | -1 |
| -2.7 | Round 5 | CZECHOSLOVAKIA V2 | 14 | 3NT | ♦9 | = | +0 |
| -2.8 | Round 3 | CHINA EVERTRUST | 5 | 3NT | ♠3 | = | +1 |
| -3.3 | Round 2 | REASON | 24 | 5♦ | ♠5 | -2 | -5 |
| -3.3 | Round 5 | CZECHOSLOVAKIA V2 | 12 | 3NT | ♠J | -1 | -10 |
| -3.5 | Round 5 | CZECHOSLOVAKIA V2 | 9 | 3NT | ♥4 | -3 | -4 |
| -3.6 | Round 5 | CZECHOSLOVAKIA V2 | 5 | 4♥x | ♣Q | -1 | +0 |
| -3.7 | Round 2 | REASON | 19 | 5♣ | ♦K | = | +0 |
| -3.7 | Round 2 | REASON | 21 | 4♥ | ♠4 | -1 | -5 |
| -3.7 | Round 3 | CHINA EVERTRUST | 13 | 3♥ | ♠K | = | -1 |
| -4.0 | Round 3 | CHINA EVERTRUST | 4 | 4♥ | ♠A | -1 | -6 |
| -4.1 | Round 1 | CAMBEROS | 7 | 4♠ | ♦5 | -1 | -12 |
| -4.2 | Round 6 | TWOB | 16 | 3♥ | ♦4 | +3 | -11 |
| -4.3 | Round 3 | CHINA EVERTRUST | 8 | 3♠ | ♣K | = | -6 |
| -4.3 | Round 4 | SZCZECIN UNIVERSITY | 26 | 3♣ | ♣4 | +1 | -10 |
| -5.0 | Round 6 | TWOB | 21 | 3♣ | ♦K | = | -6 |
| -5.7 | Round 4 | SZCZECIN UNIVERSITY | 22 | 3NT | ♠A | -3 | -5 |
| -5.9 | Round 5 | CZECHOSLOVAKIA V2 | 4 | 3NT | ♣3 | -1 | -12 |
| -6.3 | Round 5 | CZECHOSLOVAKIA V2 | 8 | 4♥ | ♠Q | = | -7 |
| -7.6 | Round 1 | CAMBEROS | 13 | 2♣ | ♦4 | -1 | -6 |
| -7.9 | Round 1 | CAMBEROS | 6 | 3♥ | ♠4 | = | -6 |
| -8.2 | Round 1 | CAMBEROS | 2 | 4♥ | ♠3 | = | +1 |
| -8.4 | Round 2 | REASON | 26 | 5♣ | ♥T | = | +0 |
| -8.9 | Round 3 | CHINA EVERTRUST | 11 | 3NT | ♠2 | +3 | -14 |
| -9.3 | Round 1 | CAMBEROS | 9 | 3NT | ♠5 | -2 | -12 |
| -9.6 | Round 1 | CAMBEROS | 3 | 3NT | ♣4 | -3 | -10 |
| -10.1 | Round 6 | TWOB | 26 | 3NT | ♥3 | +4 | -6 |
| -11.3 | Round 1 | CAMBEROS | 4 | 4♠ | ♣6 | +2 | -17 |