SOBIERALSKI Maciej · POZNAN
141rank
+37.8Butler · 98 bds
+0.39per board
±4.8swing
-0.17vs par /bd · #352/599
+0.33adjusted /bd
by round
vs par split: bidding -0.59 · play +0.42
Strength of schedule: opponents averaged -0.06/bd (an easy draw) → opponent-adjusted +0.33/bd
Card play — on target: opening leads 78.3% #323 of 599 · declarer play 76.7% #233 of 599 · defence 89.6% #144 of 599
Bidding activity — not a pass: 49.8% #85 of 599 (136/273)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 50.0% (4) | 84.2% (19) |
| Declarer play | 66.7% (9) | 81.0% (21) |
| Defence | 84.6% (13) | 91.4% (35) |
Opening leads by suit led: ♠ 60.0% (5) · ♥ 100.0% (8) · ♦ 66.7% (3) · ♣ 71.4% (7)
vs par by strain: NT -0.39 (28) · a suit -0.09 (70)
vs par by level: part-score +1.17 (36) · game -1.18 (57) · slam +1.60 (5)
By role: declaring +0.16/bd (-2.94 vs par · 50) · defending +0.62/bd (+2.71 vs par · 48)
By vulnerability: vulnerable +1.34/bd (-0.51 vs par · 49) · not vulnerable -0.57/bd (+0.16 vs par · 49)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | M.Szukala | K.Nandi – S.Roy | Closed | 14 | -4.7 | -0.34 | +0.43 |
| Round 2 | M.Szukala | A.Manno – M.Di Franco | Open | 14 | -4.4 | -0.31 | -1.07 |
| Round 3 | S.Piechocki | A.Abragi – K.Bogo | Closed | 14 | +29.2 | +2.09 | +1.57 |
| Round 4 | S.Piechocki | P.Bedouet – C.Deheeger | Open | 14 | -4.9 | -0.35 | -0.57 |
| Round 5 | M.Szukala | C.Mann – E.Hansson | Open | 14 | +7.0 | +0.50 | +2.21 |
| Round 6 | M.Szukala | E.Erichsen – M.Andresen | Open | 14 | +10.0 | +0.71 | -2.43 |
| Round 7 | M.Szukala | D.Fischer – B.Saurer | Open | 14 | +5.6 | +0.40 | -1.36 |
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 |
|---|---|---|---|---|---|---|---|
| +14.5 | Round 3 | RED PEPPER | 13 | 7♥ | ♠2 | -2 | +20 |
| +13.0 | Round 2 | EASY STREET | 16 | 3♠x | ♣5 | -3 | +16 |
| +10.1 | Round 3 | RED PEPPER | 2 | 6♦ | ♠T | -2 | +14 |
| +9.6 | Round 3 | RED PEPPER | 12 | 4♥ | ♥Q | = | +0 |
| +9.4 | Round 7 | SIGMA | 6 | 4♥x | ♦4 | -2 | +13 |
| +9.1 | Round 4 | FRANCE GREEN | 17 | 5♠ | ♦7 | -2 | +11 |
| +8.7 | Round 6 | ERICHSEN | 22 | 4♥ | ♣7 | +3 | +12 |
| +7.6 | Round 6 | ERICHSEN | 28 | 5♣ | ♦J | = | -13 |
| +6.3 | Round 1 | FORMIDABLES | 7 | 5♥ | ♦A | -1 | +3 |
| +6.0 | Round 2 | EASY STREET | 15 | 5♦ | ♣A | +1 | -17 |
| +5.7 | Round 4 | FRANCE GREEN | 20 | 4♥ | ♥8 | -1 | +6 |
| +4.8 | Round 2 | EASY STREET | 18 | 4♠x | ♥9 | -1 | +11 |
| +4.8 | Round 6 | ERICHSEN | 16 | 4♦ | ♠4 | = | +6 |
| +4.6 | Round 3 | RED PEPPER | 9 | 4♠ | ♦6 | -3 | +5 |
| +4.6 | Round 5 | DINKIN | 2 | 1NTx | ♠3 | -2 | +4 |
| +4.3 | Round 7 | SIGMA | 5 | 5♦ | ♠K | = | +0 |
| +4.2 | Round 1 | FORMIDABLES | 10 | 4♠ | ♥J | = | +10 |
| +4.2 | Round 7 | SIGMA | 11 | 3♠ | ♣A | +1 | +1 |
| +4.1 | Round 4 | FRANCE GREEN | 26 | 1NT | ♦4 | -1 | +6 |
| +3.8 | Round 6 | ERICHSEN | 27 | 1NT | ♥3 | -4 | +7 |
| +3.7 | Round 7 | SIGMA | 4 | 4♥ | ♣K | -1 | +6 |
| +3.6 | Round 1 | FORMIDABLES | 4 | 3NT | ♠3 | -3 | +4 |
| +3.6 | Round 3 | RED PEPPER | 8 | 3NT | ♦2 | = | +0 |
| +3.4 | Round 5 | DINKIN | 13 | 3♣ | ♥K | +1 | +10 |
| +3.3 | Round 6 | ERICHSEN | 23 | 4♠ | ♥4 | = | +0 |
| +3.0 | Round 1 | FORMIDABLES | 8 | 2♦ | ♣6 | -1 | +4 |
| +2.9 | Round 2 | EASY STREET | 23 | 2♠ | ♥A | = | -1 |
| +2.8 | Round 2 | EASY STREET | 25 | 3♥ | ♠7 | = | +6 |
| +2.8 | Round 3 | RED PEPPER | 7 | 4♥ | ♣5 | = | -1 |
| +2.7 | Round 1 | FORMIDABLES | 14 | 4♠ | ♥J | -2 | +11 |
| +2.5 | Round 5 | DINKIN | 11 | 3NT | ♦4 | = | +0 |
| +2.3 | Round 5 | DINKIN | 12 | 5♦ | ♣K | +1 | -1 |
| +2.3 | Round 7 | SIGMA | 2 | 5♦ | ♠K | +1 | -10 |
| +2.3 | Round 7 | SIGMA | 13 | 3NT | ♦5 | +2 | +1 |
| +2.1 | Round 6 | ERICHSEN | 26 | 4♠x | ♦A | -1 | -10 |
| +2.0 | Round 1 | FORMIDABLES | 11 | 1NT | ♥3 | = | +0 |
| +2.0 | Round 2 | EASY STREET | 26 | 4♠ | ♥2 | +1 | +0 |
| +1.8 | Round 5 | DINKIN | 4 | 4♠ | ♣A | +2 | +9 |
| +1.6 | Round 1 | FORMIDABLES | 6 | 4♦ | ♠3 | -2 | +2 |
| +1.5 | Round 3 | RED PEPPER | 6 | 5♦ | ♥T | = | +0 |
| +1.5 | Round 5 | DINKIN | 5 | 3♦ | ♦A | -1 | -2 |
| +1.4 | Round 7 | SIGMA | 1 | 3♦ | ♥K | +1 | -7 |
| +1.1 | Round 4 | FRANCE GREEN | 25 | 2♠ | ♠4 | +1 | +0 |
| +0.9 | Round 3 | RED PEPPER | 10 | 1NT | ♥6 | = | +11 |
| +0.7 | Round 5 | DINKIN | 7 | 2♦ | ♣5 | +1 | +1 |
| +0.6 | Round 2 | EASY STREET | 28 | 3♥ | ♣K | = | +7 |
| +0.5 | Round 3 | RED PEPPER | 4 | 4♠ | ♦A | +1 | -13 |
| +0.3 | Round 5 | DINKIN | 10 | 4♠ | ♥3 | -1 | +6 |
| +0.2 | Round 4 | FRANCE GREEN | 28 | 3NT | ♦4 | +2 | +1 |
| +0.0 | Round 6 | ERICHSEN | 15 | 4♥ | ♦J | = | +0 |
| -0.1 | Round 4 | FRANCE GREEN | 19 | 1NT | ♣5 | +1 | +0 |
| -0.2 | Round 4 | FRANCE GREEN | 18 | 3NT | ♠4 | +2 | +0 |
| -0.2 | Round 4 | FRANCE GREEN | 21 | 3NT | ♦K | = | -1 |
| -0.2 | Round 6 | ERICHSEN | 24 | 2♦ | ♥A | -1 | +2 |
| -0.2 | Round 7 | SIGMA | 10 | 1NT | ♦2 | -1 | +1 |
| -0.3 | Round 2 | EASY STREET | 22 | 1NT | ♥2 | -1 | -4 |
| -0.3 | Round 5 | DINKIN | 8 | 1NT | ♦4 | +1 | +0 |
| -0.6 | Round 4 | FRANCE GREEN | 15 | 4♥ | ♠T | +1 | -1 |
| -0.6 | Round 7 | SIGMA | 8 | 2♠ | ♣8 | +1 | +0 |
| -0.8 | Round 1 | FORMIDABLES | 2 | 4♠ | ♥2 | +2 | -1 |
| -0.9 | Round 3 | RED PEPPER | 5 | 4♠ | ♥Q | = | +0 |
| -0.9 | Round 5 | DINKIN | 14 | 4♠x | ♥A | -1 | +5 |
| -1.2 | Round 1 | FORMIDABLES | 5 | 2♠ | ♠2 | +1 | -6 |
| -1.2 | Round 6 | ERICHSEN | 25 | 2♠ | ♥6 | +2 | +8 |
| -1.6 | Round 4 | FRANCE GREEN | 27 | 2♦ | ♦8 | -3 | -1 |
| -1.8 | Round 5 | DINKIN | 3 | 1NT | ♠6 | = | +0 |
| -1.8 | Round 6 | ERICHSEN | 17 | 3NT | ♣8 | -1 | -5 |
| -2.0 | Round 1 | FORMIDABLES | 1 | 2♥ | ♠K | -1 | -4 |
| -2.1 | Round 3 | RED PEPPER | 3 | 4♠ | ♣T | = | -3 |
| -2.1 | Round 5 | DINKIN | 6 | 4♠ | ♦6 | -1 | -5 |
| -2.2 | Round 2 | EASY STREET | 17 | 3NT | ♠8 | = | -3 |
| -2.2 | Round 2 | EASY STREET | 24 | 4♥ | ♦7 | +1 | +0 |
| -2.4 | Round 1 | FORMIDABLES | 12 | 2♠ | ♥2 | = | -5 |
| -2.4 | Round 5 | DINKIN | 9 | 3♠ | ♦K | -1 | +2 |
| -2.5 | Round 6 | ERICHSEN | 18 | 3♣ | ♠6 | -1 | -5 |
| -2.6 | Round 5 | DINKIN | 1 | 4♥ | ♦A | -1 | +2 |
| -2.9 | Round 7 | SIGMA | 9 | 3NT | ♥7 | = | +1 |
| -3.3 | Round 6 | ERICHSEN | 20 | 6♠ | ♦3 | -1 | -13 |
| -3.4 | Round 4 | FRANCE GREEN | 23 | 4♥ | ♦A | +1 | -1 |
| -3.4 | Round 7 | SIGMA | 14 | 2♦x | ♠T | -1 | +0 |
| -3.6 | Round 1 | FORMIDABLES | 13 | 2NT | ♠3 | +4 | +8 |
| -4.0 | Round 7 | SIGMA | 12 | 2♥ | ♣9 | +1 | -12 |
| -4.1 | Round 2 | EASY STREET | 19 | 3NT | ♦J | -1 | -5 |
| -4.4 | Round 3 | RED PEPPER | 11 | 3NT | ♠K | = | +1 |
| -4.4 | Round 3 | RED PEPPER | 14 | 4♠ | ♠6 | +1 | -4 |
| -4.6 | Round 4 | FRANCE GREEN | 16 | 3NT | ♠7 | -1 | -5 |
| -5.0 | Round 7 | SIGMA | 7 | 4♥ | ♠Q | +2 | -13 |
| -5.5 | Round 6 | ERICHSEN | 21 | 6♦ | ♠6 | +1 | -13 |
| -5.8 | Round 6 | ERICHSEN | 19 | 3NT | ♣T | -1 | -10 |
| -5.9 | Round 7 | SIGMA | 3 | 5♦ | ♥8 | = | +0 |
| -6.9 | Round 4 | FRANCE GREEN | 24 | 4♣ | ♥Q | +2 | -13 |
| -7.1 | Round 3 | RED PEPPER | 1 | 4♥ | ♦K | = | -8 |
| -7.3 | Round 1 | FORMIDABLES | 3 | 4♠x | ♠Q | -2 | -10 |
| -7.5 | Round 4 | FRANCE GREEN | 22 | 4♥ | ♣K | = | -10 |
| -8.1 | Round 2 | EASY STREET | 27 | 6NT | ♥J | = | +0 |
| -9.1 | Round 2 | EASY STREET | 20 | 4NT | ♥7 | -1 | -13 |
| -10.5 | Round 2 | EASY STREET | 21 | 5♣ | ♠4 | -2 | -12 |
| -10.8 | Round 1 | FORMIDABLES | 9 | 3NT | ♦7 | = | -10 |