KOWALSKI Apolinary · DE FALCO
230rank
-13.2Butler · 110 bds
-0.12per board
±4.6swing
+0.75vs par /bd · #30/373
-0.04adjusted /bd
by round
vs par split: bidding +0.66 · play +0.09
Strength of schedule: opponents averaged +0.07/bd (a tough draw) → opponent-adjusted -0.04/bd
Card play — on target: opening leads 76.7% #234 of 373 · declarer play 82.1% #77 of 373 · defence 90.0% #75 of 373
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 83.3% (12) | 72.2% (18) |
| Declarer play | 80.0% (10) | 83.3% (18) |
| Defence | 87.5% (24) | 91.7% (36) |
Opening leads by suit led: ♠ 75.0% (4) · ♥ 71.4% (14) · ♦ 80.0% (5) · ♣ 85.7% (7)
vs par by strain: NT +0.50 (42) · a suit +0.91 (68)
vs par by level: part-score +1.02 (41) · game +0.46 (59) · slam +1.40 (10)
By role: declaring -0.14/bd (-1.44 vs par · 50) · defending -0.10/bd (+2.58 vs par · 60)
By vulnerability: vulnerable +0.30/bd (+1.32 vs par · 56) · not vulnerable -0.56/bd (+0.17 vs par · 54)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | J.Romanski | S.Bahbout – M.Vandervorst | Closed | 10 | +2.4 | +0.24 | +1.50 |
| Round 3 | J.Romanski | P.Bertheau – G.Hallberg | Closed | 10 | -11.1 | -1.11 | -0.30 |
| Round 4 | J.Romanski | M.Schollaardt – T.Van Overbeeke | Closed | 10 | -15.8 | -1.58 | +0.10 |
| Round 6 | J.Romanski | R.Beriashvili – G.Abzianidze | Closed | 10 | +16.5 | +1.65 | +4.40 |
| Round 8 | J.Romanski | L.Rosenthal – M.Green | Closed | 10 | -2.9 | -0.29 | +1.20 |
| Round 9 | J.Romanski | T.Hanlon – H.Mcgann | Closed | 10 | +9.1 | +0.91 | +3.00 |
| Round 10 | J.Romanski | ROOT STEVEN – J.Harris | Closed | 10 | +7.5 | +0.75 | +3.20 |
| Round 12 | J.Romanski | N.Zorlu – N.Kubac | Closed | 10 | +16.6 | +1.66 | +0.50 |
| Round 13 | J.Romanski | P.Zatorski – R.Pachtman | Open | 10 | -19.8 | -1.98 | -4.20 |
| Round 14 | J.Romanski | H.Lasut – E.Manoppo | Closed | 10 | +10.0 | +1.00 | -0.20 |
| Round 15 | J.Romanski | J.Rombaut – F.Combescure | Closed | 10 | -25.7 | -2.57 | -0.90 |
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 |
|---|---|---|---|---|---|---|---|
| +16.0 | Round 6 | GEORGIA ON MY MIND | 4 | 3♦x | ♣2 | -6 | +14 |
| +13.0 | Round 8 | LR INTERNATIONAL | 4 | 6NT | ♥2 | = | +13 |
| +10.4 | Round 6 | GEORGIA ON MY MIND | 9 | 6♥ | ♦K | -1 | +11 |
| +9.1 | Round 4 | NETHERLANDS BLUE | 4 | 3NT | ♣6 | +1 | +4 |
| +9.1 | Round 12 | SALVO | 5 | 7♠x | ♥5 | -8 | +0 |
| +7.0 | Round 3 | BLACK | 15 | 3NT | ♥K | -3 | +9 |
| +6.8 | Round 9 | MORAN | 18 | 4♥ | ♠10 | +3 | +17 |
| +6.2 | Round 14 | INA MAN RED | 1 | 1NTx | ♦3 | +1 | +4 |
| +6.0 | Round 8 | LR INTERNATIONAL | 3 | 4♠ | ♠A | = | +0 |
| +5.9 | Round 9 | MORAN | 19 | 4♠ | ♥K | -1 | +11 |
| +5.6 | Round 6 | GEORGIA ON MY MIND | 2 | 4♠x | ♥K | = | +5 |
| +5.4 | Round 8 | LR INTERNATIONAL | 6 | 3NT | ♦Q | -3 | +4 |
| +5.0 | Round 13 | ERA | 18 | 5♠ | ♣A | = | +4 |
| +4.5 | Round 10 | HARRIS | 5 | 3NT | ♦4 | +1 | +4 |
| +4.3 | Round 10 | HARRIS | 1 | 1NT | ♦J | +1 | +5 |
| +4.1 | Round 1 | COOREMAN BELGIUM | 6 | 4♠ | ♣10 | -1 | +10 |
| +3.5 | Round 14 | INA MAN RED | 8 | 1NT | ♦7 | +1 | +0 |
| +3.4 | Round 12 | SALVO | 9 | 2♥ | ♦3 | +1 | +1 |
| +3.3 | Round 14 | INA MAN RED | 7 | 1NT | ♠A | = | +5 |
| +3.3 | Round 15 | WARD PLATT | 20 | 6♠ | ♦Q | = | +0 |
| +3.2 | Round 4 | NETHERLANDS BLUE | 9 | 2♠ | ♥6 | = | +6 |
| +2.9 | Round 15 | WARD PLATT | 17 | 2♠ | ♦Q | +3 | +6 |
| +2.7 | Round 3 | BLACK | 19 | 4♥ | ♥2 | = | +3 |
| +2.7 | Round 12 | SALVO | 1 | 6♠ | ♣4 | = | +0 |
| +2.5 | Round 1 | COOREMAN BELGIUM | 1 | 4♣ | ♥Q | = | +0 |
| +2.5 | Round 12 | SALVO | 4 | 3NT | ♥4 | = | +0 |
| +2.3 | Round 9 | MORAN | 11 | 3♣ | ♠J | = | +0 |
| +2.2 | Round 1 | COOREMAN BELGIUM | 5 | 1♥ | ♦3 | +1 | +1 |
| +2.2 | Round 10 | HARRIS | 2 | 3NT | ♣6 | -2 | +5 |
| +2.1 | Round 10 | HARRIS | 3 | 4♠ | ♦J | = | +7 |
| +2.0 | Round 1 | COOREMAN BELGIUM | 2 | 3♦ | ♣9 | -1 | +5 |
| +1.9 | Round 3 | BLACK | 18 | 3♥ | ♠8 | -1 | +5 |
| +1.6 | Round 15 | WARD PLATT | 11 | 1NT | ♠3 | -2 | +0 |
| +1.5 | Round 14 | INA MAN RED | 6 | 3♣ | ♥8 | -1 | +4 |
| +1.4 | Round 3 | BLACK | 17 | 3NT | ♠9 | +2 | +1 |
| +1.4 | Round 12 | SALVO | 6 | 3♣ | ♣6 | -1 | +6 |
| +1.3 | Round 6 | GEORGIA ON MY MIND | 10 | 3♠ | ♥4 | -1 | +5 |
| +1.3 | Round 15 | WARD PLATT | 16 | 4♠ | ♥K | +1 | +0 |
| +0.9 | Round 3 | BLACK | 11 | 3NT | ♠3 | = | +2 |
| +0.8 | Round 9 | MORAN | 13 | 4♥ | ♦A | +1 | +17 |
| +0.8 | Round 12 | SALVO | 7 | 3NT | ♦7 | = | +0 |
| +0.8 | Round 14 | INA MAN RED | 3 | 3NT | ♥Q | = | +1 |
| +0.6 | Round 6 | GEORGIA ON MY MIND | 3 | 3♣ | ♠J | +1 | +7 |
| +0.6 | Round 6 | GEORGIA ON MY MIND | 6 | 3NT | ♠8 | +1 | +10 |
| +0.6 | Round 10 | HARRIS | 4 | 1NT | ♣J | -1 | +0 |
| +0.6 | Round 13 | ERA | 13 | 1NT | ♥2 | +1 | +1 |
| +0.5 | Round 12 | SALVO | 10 | 2♠ | ♣6 | -1 | +0 |
| +0.5 | Round 13 | ERA | 15 | 3♥ | ♣J | -1 | +4 |
| +0.3 | Round 9 | MORAN | 15 | 4♠ | ♥2 | = | -11 |
| +0.2 | Round 14 | INA MAN RED | 4 | 1♥ | ♠10 | -2 | -2 |
| +0.1 | Round 10 | HARRIS | 6 | 3NT | ♥4 | +1 | +0 |
| +0.1 | Round 12 | SALVO | 3 | 3NT | ♣Q | +1 | +0 |
| -0.0 | Round 1 | COOREMAN BELGIUM | 4 | 1NT | ♥4 | = | +2 |
| -0.0 | Round 14 | INA MAN RED | 9 | 5♣ | ♥K | = | +0 |
| -0.2 | Round 3 | BLACK | 14 | 3NT | ♦Q | = | -2 |
| -0.2 | Round 8 | LR INTERNATIONAL | 7 | 4♥ | ♣Q | +1 | +0 |
| -0.2 | Round 12 | SALVO | 8 | 1NT | ♥3 | -2 | +0 |
| -0.4 | Round 10 | HARRIS | 9 | 6♠ | ♥7 | = | +13 |
| -0.5 | Round 3 | BLACK | 13 | 5♦ | ♥J | = | -1 |
| -0.5 | Round 14 | INA MAN RED | 10 | 4♥ | ♦2 | +1 | -13 |
| -0.6 | Round 8 | LR INTERNATIONAL | 8 | 2♠ | ♣2 | +2 | +4 |
| -0.7 | Round 9 | MORAN | 20 | 4♠ | ♥K | = | +3 |
| -0.8 | Round 4 | NETHERLANDS BLUE | 3 | 3NT | ♠7 | +3 | +11 |
| -0.8 | Round 13 | ERA | 17 | 3NT | ♦A | +2 | +0 |
| -0.9 | Round 9 | MORAN | 16 | 3♦ | ♥2 | -1 | -3 |
| -1.0 | Round 9 | MORAN | 12 | 4♦ | ♥K | -2 | +0 |
| -1.0 | Round 10 | HARRIS | 10 | 2NT | ♥4 | = | +0 |
| -1.1 | Round 1 | COOREMAN BELGIUM | 3 | 4♠ | ♣A | +2 | -2 |
| -1.2 | Round 1 | COOREMAN BELGIUM | 9 | 2♥ | ♣A | +1 | +0 |
| -1.2 | Round 6 | GEORGIA ON MY MIND | 7 | 4♠ | ♦K | +1 | +0 |
| -1.4 | Round 14 | INA MAN RED | 5 | 2♥ | ♦A | +1 | -1 |
| -1.5 | Round 1 | COOREMAN BELGIUM | 7 | 3NT | ♦3 | +1 | +0 |
| -1.5 | Round 6 | GEORGIA ON MY MIND | 1 | 1NT | ♥Q | = | +0 |
| -1.6 | Round 13 | ERA | 19 | 5♥x | ♣5 | -2 | -10 |
| -1.9 | Round 9 | MORAN | 17 | 3♣ | ♦5 | -1 | -4 |
| -2.0 | Round 1 | COOREMAN BELGIUM | 8 | 4♠ | ♦3 | = | +0 |
| -2.0 | Round 4 | NETHERLANDS BLUE | 7 | 2♣ | ♥6 | = | +1 |
| -2.2 | Round 13 | ERA | 14 | 2♥ | ♣K | -1 | -8 |
| -2.3 | Round 8 | LR INTERNATIONAL | 5 | 4♠ | ♥4 | = | +0 |
| -2.3 | Round 13 | ERA | 12 | 4♥ | ♠A | -1 | -5 |
| -2.4 | Round 10 | HARRIS | 7 | 3NT | ♠3 | = | +1 |
| -2.5 | Round 9 | MORAN | 14 | 5♠ | ♥A | = | +0 |
| -2.5 | Round 10 | HARRIS | 8 | 5♦ | ♣A | = | -3 |
| -2.6 | Round 1 | COOREMAN BELGIUM | 10 | 3NT | ♣3 | +1 | -1 |
| -2.6 | Round 4 | NETHERLANDS BLUE | 5 | 2♠ | ♥5 | -1 | -5 |
| -2.7 | Round 15 | WARD PLATT | 13 | 4♠ | ♥6 | -1 | -6 |
| -3.0 | Round 13 | ERA | 16 | 5♦ | ♠K | -1 | -5 |
| -3.2 | Round 4 | NETHERLANDS BLUE | 1 | 4♥ | ♦A | -1 | +2 |
| -3.2 | Round 8 | LR INTERNATIONAL | 10 | 5♣ | ♠A | +1 | +13 |
| -3.4 | Round 8 | LR INTERNATIONAL | 9 | 3NT | ♥10 | -1 | -5 |
| -3.5 | Round 15 | WARD PLATT | 15 | 5♥ | ♠K | -1 | +2 |
| -3.5 | Round 15 | WARD PLATT | 18 | 1NT | ♥2 | +1 | +0 |
| -3.6 | Round 14 | INA MAN RED | 2 | 3NT | ♠3 | +2 | +0 |
| -3.7 | Round 12 | SALVO | 2 | 3♣ | ♥A | -2 | -2 |
| -3.8 | Round 4 | NETHERLANDS BLUE | 10 | 2♠ | ♥A | = | -6 |
| -4.0 | Round 4 | NETHERLANDS BLUE | 6 | 3NT | ♣3 | +1 | -7 |
| -4.1 | Round 4 | NETHERLANDS BLUE | 8 | 4♠ | ♥K | = | -7 |
| -5.0 | Round 8 | LR INTERNATIONAL | 1 | 3♠x | ♣A | -5 | -3 |
| -5.1 | Round 6 | GEORGIA ON MY MIND | 5 | 3NT | ♣10 | = | +1 |
| -5.9 | Round 15 | WARD PLATT | 12 | 5NT | ♥9 | +1 | +12 |
| -6.5 | Round 3 | BLACK | 16 | 3♥ | ♦A | +1 | -10 |
| -6.6 | Round 13 | ERA | 11 | 6♥ | ♦Q | +1 | -11 |
| -7.6 | Round 4 | NETHERLANDS BLUE | 2 | 6♦ | ♥J | = | +2 |
| -7.8 | Round 3 | BLACK | 12 | 3NT | ♥8 | -1 | -10 |
| -9.0 | Round 15 | WARD PLATT | 14 | 3NTx | ♥J | +1 | -11 |
| -9.4 | Round 13 | ERA | 20 | 3NT | ♣7 | -1 | -12 |
| -10.0 | Round 3 | BLACK | 20 | 6♥ | ♦8 | = | +0 |
| -10.2 | Round 6 | GEORGIA ON MY MIND | 8 | 4♠x | ♦K | -3 | -9 |
| -10.2 | Round 15 | WARD PLATT | 19 | 3NT | ♥3 | -1 | -12 |
| -12.6 | Round 8 | LR INTERNATIONAL | 2 | 6NT | ♦A | -4 | -14 |