KOWALSKI Dariusz · BRIDGESCANNER
vs par split: bidding -0.43 · play +0.54
Strength of schedule: opponents averaged +0.13/bd (a tough draw) → opponent-adjusted -0.42/bd
Card play — on target: opening leads 66.7% #409 of 428 · declarer play 50.0% #421 of 428 · defence 82.6% #234 of 428
Bidding activity — not a pass: 28.5% #428 of 428 (53/186)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 40.0% (5) | 75.0% (16) |
| Declarer play | 20.0% (5) | 71.4% (7) |
| Defence | 90.9% (11) | 80.0% (35) |
Opening leads by suit led: ♠ 44.4% (9) · ♥ 80.0% (5) · ♦ 85.7% (7)
vs par by strain: NT +1.10 (19) · a suit -0.26 (51)
vs par by level: part-score -1.00 (32) · game +0.83 (36) · slam +5.00 (2)
By role: declaring -0.03/bd (-2.04 vs par · 24) · defending -0.82/bd (+1.24 vs par · 46)
By vulnerability: vulnerable -0.31/bd (+0.18 vs par · 34) · not vulnerable -0.78/bd (+0.06 vs par · 36)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | W.Olanski | S.Jedrzejewski – S.Grabala | Closed | 10 | +9.5 | +0.95 | +3.90 |
| Round 2 | W.Olanski | A.Kalish – N.Grinberg | Closed | 10 | +0.8 | +0.08 | +1.80 |
| Round 3 | W.Olanski | M.Drogemuller – N.Bausback | Closed | 10 | -18.7 | -1.87 | -2.90 |
| Round 5 | W.Olanski | D.Filipowicz – G.Bajek | Open | 10 | -17.6 | -1.76 | -2.20 |
| Round 6 | W.Olanski | M.Lanzarotti – A.Franchi | Closed | 10 | +1.2 | +0.12 | +1.10 |
| Round 7 | W.Olanski | P.Gruenke – M.Eggeling | Open | 10 | -21.0 | -2.10 | +0.10 |
| Round 8 | W.Olanski | L.To – T.Wan | Closed | 10 | +7.2 | +0.72 | -1.00 |
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 |
|---|---|---|---|---|---|---|---|
| +12.3 | Round 1 | GDANSK | 4 | 3NT | ♠Q | -3 | +14 |
| +8.1 | Round 2 | KALISH | 13 | 3NT | ♠5 | -2 | +8 |
| +8.1 | Round 7 | PRESIDENTS WALDSOLMS | 2 | 3♥x | ♠A | -3 | +17 |
| +6.9 | Round 1 | GDANSK | 2 | 4♥ | ♣A | -1 | +12 |
| +5.7 | Round 3 | DANGER | 21 | 3NT | ♦3 | +1 | +0 |
| +5.4 | Round 8 | BANANAS | 13 | 1♥ | ♠J | = | +5 |
| +4.1 | Round 2 | KALISH | 11 | 4♠ | ♥2 | -2 | +11 |
| +3.8 | Round 8 | BANANAS | 17 | 4♥ | ♣9 | +3 | -9 |
| +2.9 | Round 8 | BANANAS | 18 | 4♥x | ♠A | = | +5 |
| +2.7 | Round 8 | BANANAS | 20 | 3♥ | ♥8 | -2 | +3 |
| +2.6 | Round 7 | PRESIDENTS WALDSOLMS | 6 | 2♠ | ♠7 | -1 | +4 |
| +2.6 | Round 8 | BANANAS | 11 | 2♥ | ♣4 | +2 | +2 |
| +2.5 | Round 6 | BRENO | 25 | 3NT | ♥3 | = | -1 |
| +2.1 | Round 6 | BRENO | 29 | 3NT | ♠6 | -1 | +6 |
| +2.0 | Round 5 | BAOLZU | 17 | 1NT | ♦Q | -1 | -1 |
| +1.9 | Round 6 | BRENO | 26 | 3♦ | ♠Q | +1 | +1 |
| +1.8 | Round 1 | GDANSK | 8 | 2♠ | ♥5 | -2 | +0 |
| +1.7 | Round 1 | GDANSK | 10 | 1NT | ♠T | = | -1 |
| +1.7 | Round 6 | BRENO | 24 | 3♠ | ♦7 | = | +1 |
| +1.6 | Round 8 | BANANAS | 14 | 2NT | ♠T | -1 | +4 |
| +1.5 | Round 2 | KALISH | 19 | 4♠ | ♠A | +1 | +0 |
| +1.5 | Round 5 | BAOLZU | 18 | 4♥ | ♦K | -1 | -1 |
| +1.4 | Round 1 | GDANSK | 7 | 4♠ | ♣4 | -2 | +8 |
| +1.3 | Round 6 | BRENO | 21 | 4♥ | ♦8 | -1 | +6 |
| +1.1 | Round 2 | KALISH | 20 | 1NT | ♠A | +1 | +0 |
| +1.0 | Round 2 | KALISH | 17 | 2NT | ♠Q | -2 | +5 |
| +1.0 | Round 7 | PRESIDENTS WALDSOLMS | 3 | 4♥ | ♣6 | -1 | +5 |
| +0.8 | Round 8 | BANANAS | 19 | 1NT | ♥4 | = | +1 |
| +0.6 | Round 2 | KALISH | 16 | 2♦ | ♠4 | -1 | +4 |
| +0.6 | Round 8 | BANANAS | 16 | 4♥ | ♠T | = | +1 |
| +0.4 | Round 5 | BAOLZU | 19 | 3♥ | ♥7 | = | +1 |
| +0.1 | Round 3 | DANGER | 22 | 3NT | ♣A | +1 | +0 |
| +0.1 | Round 6 | BRENO | 28 | 2♥ | ♥J | = | +0 |
| -0.2 | Round 5 | BAOLZU | 11 | 2♥ | ♣Q | -1 | -2 |
| -0.2 | Round 7 | PRESIDENTS WALDSOLMS | 1 | 4♠ | ♥K | = | +0 |
| -0.4 | Round 6 | BRENO | 30 | 4♥ | ♦4 | +1 | +0 |
| -0.6 | Round 5 | BAOLZU | 13 | 4♠ | ♣J | +2 | +13 |
| -0.6 | Round 6 | BRENO | 23 | 3NT | ♠Q | = | -2 |
| -0.6 | Round 7 | PRESIDENTS WALDSOLMS | 9 | 4♥ | ♦8 | +1 | +0 |
| -0.8 | Round 3 | DANGER | 29 | 2♥ | ♥4 | +1 | +0 |
| -1.2 | Round 1 | GDANSK | 6 | 2NT | ♥7 | = | +0 |
| -1.3 | Round 2 | KALISH | 18 | 3♥ | ♦7 | +1 | -6 |
| -1.5 | Round 3 | DANGER | 27 | 2♠ | ♣J | +1 | -6 |
| -1.5 | Round 6 | BRENO | 22 | 2♦ | ♠A | +2 | +0 |
| -1.6 | Round 1 | GDANSK | 5 | 3♠ | ♥5 | +3 | -5 |
| -1.6 | Round 2 | KALISH | 14 | 3NT | ♦K | -2 | -5 |
| -1.8 | Round 5 | BAOLZU | 16 | 6♥ | ♠9 | +1 | -1 |
| -1.8 | Round 7 | PRESIDENTS WALDSOLMS | 5 | 2♠ | ♦4 | +1 | -1 |
| -2.4 | Round 5 | BAOLZU | 12 | 4♠ | ♥9 | +1 | +0 |
| -2.6 | Round 3 | DANGER | 30 | 4♠ | ♥2 | +1 | -1 |
| -2.7 | Round 3 | DANGER | 28 | 4♠ | ♣2 | = | -3 |
| -3.1 | Round 1 | GDANSK | 3 | 4♥ | ♠Q | +1 | +0 |
| -3.1 | Round 2 | KALISH | 12 | 2♥ | ♠J | = | +1 |
| -3.3 | Round 3 | DANGER | 26 | 4♥ | ♦Q | = | +1 |
| -3.4 | Round 3 | DANGER | 24 | 1♥ | ♠A | = | -5 |
| -3.4 | Round 5 | BAOLZU | 14 | 2♠ | ♠A | +1 | -6 |
| -3.9 | Round 8 | BANANAS | 15 | 3NT | ♥3 | +2 | -11 |
| -4.1 | Round 1 | GDANSK | 9 | 4♥ | ♠K | = | +1 |
| -4.6 | Round 1 | GDANSK | 1 | 3NT | ♦6 | +2 | +10 |
| -4.9 | Round 5 | BAOLZU | 20 | 3♠ | ♦K | -2 | -15 |
| -5.1 | Round 3 | DANGER | 23 | 3NT | ♣Q | -1 | -6 |
| -5.1 | Round 3 | DANGER | 25 | 4♠x | ♦A | -1 | -9 |
| -5.3 | Round 7 | PRESIDENTS WALDSOLMS | 4 | 2♠ | ♠J | -4 | -7 |
| -5.5 | Round 7 | PRESIDENTS WALDSOLMS | 8 | 6♠ | ♦J | +1 | +11 |
| -5.7 | Round 7 | PRESIDENTS WALDSOLMS | 10 | 5♥ | ♣K | -1 | -13 |
| -5.9 | Round 6 | BRENO | 27 | 3NT | ♠5 | = | +0 |
| -8.2 | Round 5 | BAOLZU | 15 | 4♠ | ♦J | = | -10 |
| -9.3 | Round 8 | BANANAS | 12 | 3♠ | ♦A | = | -11 |
| -9.6 | Round 2 | KALISH | 15 | 4♥ | ♦T | = | +0 |
| -13.6 | Round 7 | PRESIDENTS WALDSOLMS | 7 | 4♦x | ♠4 | -5 | -15 |