KOWALSKI Apolinary · ZAMBONINI
135rank
+2.4Butler · 30 bds
+0.08per board
±3.0swing
+0.06adjusted /bd
by round
Strength of schedule: opponents averaged -0.02/bd (an average draw) → opponent-adjusted +0.06/bd
By role: declaring +0.56/bd (16) · defending -0.47/bd (14)
By vulnerability: not vulnerable +0.08/bd (30)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | J.Romanski | G.Matushko – A.Sterkin | Closed | 10 | +15.8 | +1.58 | · |
| Round 2 | J.Romanski | A.Kolesnik – D.Kendrick | Closed | 10 | -13.5 | -1.35 | · |
| Round 4 | J.Romanski | J.Michalek – Z.Macior | Closed | 10 | +0.1 | +0.01 | · |
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 |
|---|---|---|---|---|---|---|---|
| +6.2 | Round 1 | MATUSKO | 1 | 2♠ | ♥5 | +2 | · |
| +6.1 | Round 1 | MATUSKO | 10 | 6♥ | ♣5 | +1 | · |
| +5.3 | Round 1 | MATUSKO | 3 | 4♠ | ♥5 | -2 | · |
| +3.5 | Round 4 | SZENBERG | 1 | 3NT | ♠5 | +1 | · |
| +3.4 | Round 1 | MATUSKO | 4 | 4♠ | ♦7 | +1 | · |
| +2.5 | Round 4 | SZENBERG | 5 | 6NT | ♣5 | = | · |
| +2.2 | Round 4 | SZENBERG | 6 | 3NT | ♠Q | +2 | · |
| +1.8 | Round 1 | MATUSKO | 7 | 3♦ | ♥5 | +1 | · |
| +1.7 | Round 1 | MATUSKO | 2 | 4♥ | ♣A | = | · |
| +1.5 | Round 2 | CURTIS | 16 | 3♦ | ♣6 | = | · |
| +1.3 | Round 2 | CURTIS | 17 | 4♥ | ♣K | -1 | · |
| +0.9 | Round 4 | SZENBERG | 4 | 2♠ | ♣K | +1 | · |
| +0.4 | Round 4 | SZENBERG | 3 | 3♦ | ♥4 | -1 | · |
| +0.2 | Round 1 | MATUSKO | 5 | 3NT | ♦Q | = | · |
| +0.2 | Round 2 | CURTIS | 14 | 2♦ | ♣Q | +1 | · |
| +0.2 | Round 4 | SZENBERG | 10 | 2♠ | ♣J | = | · |
| -0.6 | Round 2 | CURTIS | 19 | 2♥ | ♠Q | +4 | · |
| -0.9 | Round 2 | CURTIS | 11 | 1NT | ♣10 | +1 | · |
| -1.1 | Round 4 | SZENBERG | 2 | 2♠ | ♣J | = | · |
| -1.2 | Round 2 | CURTIS | 18 | 4♥x | ♣K | -1 | · |
| -1.4 | Round 2 | CURTIS | 20 | 3♦ | ♦2 | +1 | · |
| -1.6 | Round 4 | SZENBERG | 7 | 4♥ | ♦10 | -1 | · |
| -2.6 | Round 1 | MATUSKO | 8 | 4♠ | ♦7 | -1 | · |
| -2.8 | Round 4 | SZENBERG | 9 | 3♠ | ♦Q | -1 | · |
| -3.1 | Round 1 | MATUSKO | 9 | 2♥ | ♠Q | +1 | · |
| -3.2 | Round 1 | MATUSKO | 6 | 3NT | ♠J | -2 | · |
| -3.2 | Round 2 | CURTIS | 13 | 1NT | ♦6 | = | · |
| -3.9 | Round 2 | CURTIS | 12 | 4♠ | ♦7 | +1 | · |
| -4.1 | Round 4 | SZENBERG | 8 | 3♠ | ♦8 | = | · |
| -5.3 | Round 2 | CURTIS | 15 | 4♥ | ♣8 | = | · |