KOWALSKI Apolinary · ROSSARD
vs par split: bidding +1.31 · play +0.29
Strength of schedule: opponents averaged -0.13/bd (an easy draw) → opponent-adjusted +0.71/bd
Card play — on target: opening leads 86.4% #104 of 518 · declarer play 63.2% #453 of 517 · defence 82.5% #281 of 518
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 80.0% (5) | 88.2% (17) |
| Declarer play | 100.0% (3) | 56.2% (16) |
| Defence | 81.8% (11) | 82.8% (29) |
Opening leads by suit led: ♠ 100.0% (7) · ♥ 100.0% (3) · ♦ 83.3% (6) · ♣ 66.7% (6)
vs par by strain: NT -0.94 (18) · a suit +2.55 (51)
vs par by level: part-score +1.04 (25) · game +2.12 (41) · slam +0.00 (3)
By role: declaring +1.05/bd (-0.36 vs par · 28) · defending +0.69/bd (+2.86 vs par · 42)
By vulnerability: vulnerable +0.86/bd (+2.50 vs par · 34) · not vulnerable +0.81/bd (+0.69 vs par · 36)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 2 | E.Sobolewska | H.Shi – J.Wang | Closed | 10 | +14.1 | +1.41 | +0.60 |
| Round 3 | E.Sobolewska | T.Teramoto – M.Sato | Open | 10 | +12.4 | +1.24 | +1.50 |
| Round 5 | E.Sobolewska | K.Sanborn – S.Sanborn | Open | 10 | +6.2 | +0.62 | +0.10 |
| Round 7 | E.Sobolewska | K.Jin – P.Zhu | Open | 10 | +17.2 | +1.72 | +4.40 |
| Round 8 | E.Sobolewska | L.Stansby – J.Stansby | Open | 10 | -8.1 | -0.81 | -1.80 |
| Round 9 | E.Sobolewska | B.Palmer – W.Cole | Closed | 10 | +0.7 | +0.07 | +2.20 |
| Round 10 | E.Sobolewska | N.Frey – E.Mauberquez | Open | 10 | +15.9 | +1.59 | +4.00 |
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 |
|---|---|---|---|---|---|---|---|
| +15.1 | Round 7 | CFSC | 18 | 4♥ | ♦K | -1 | +17 |
| +14.6 | Round 2 | REIGNWOOD | 15 | 6♣ | ♠K | = | +0 |
| +10.0 | Round 3 | 3ST | 2 | 4♥x | ♣5 | -4 | +5 |
| +9.0 | Round 3 | 3ST | 8 | 3NT | ♠3 | = | +3 |
| +7.9 | Round 8 | GARTAGANIS | 6 | 6♦ | ♠10 | = | +0 |
| +7.9 | Round 10 | REESS | 28 | 5♦x | ♥Q | -3 | +9 |
| +7.8 | Round 5 | COCO CAT | 30 | 5♣ | ♠A | -1 | +11 |
| +7.3 | Round 7 | CFSC | 12 | 5♣ | ♠6 | -1 | +12 |
| +6.4 | Round 10 | REESS | 29 | 4♠ | ♦K | -2 | +8 |
| +5.2 | Round 10 | REESS | 21 | 4♠x | ♦A | -2 | +4 |
| +4.8 | Round 5 | COCO CAT | 28 | 1NT | ♠3 | = | +5 |
| +4.8 | Round 10 | REESS | 24 | 2♠ | ♣6 | +2 | +1 |
| +4.2 | Round 2 | REIGNWOOD | 18 | 2♥ | ♦Q | -1 | +5 |
| +3.8 | Round 2 | REIGNWOOD | 12 | 4♠ | ♣J | = | +10 |
| +3.6 | Round 5 | COCO CAT | 29 | 4♠ | ♦4 | = | +0 |
| +2.9 | Round 9 | MANFIELD | 13 | 3NT | ♦J | -2 | +8 |
| +2.7 | Round 7 | CFSC | 15 | 3♥ | ♠K | -1 | +6 |
| +2.4 | Round 7 | CFSC | 14 | 5♣ | ♥A | = | +0 |
| +2.2 | Round 5 | COCO CAT | 21 | 2♦ | ♣6 | -1 | +4 |
| +2.1 | Round 3 | 3ST | 1 | 2NT | ♣4 | +2 | -2 |
| +2.0 | Round 9 | MANFIELD | 19 | 4♥ | ♣4 | = | +0 |
| +1.9 | Round 8 | GARTAGANIS | 1 | 3NT | ♣4 | +1 | +0 |
| +1.8 | Round 3 | 3ST | 7 | 2♦ | ♠2 | -1 | +5 |
| +1.8 | Round 7 | CFSC | 19 | 3♠ | ♣8 | -1 | +4 |
| +1.8 | Round 8 | GARTAGANIS | 7 | 2♠ | ♣6 | +1 | +11 |
| +1.7 | Round 10 | REESS | 23 | 4♥ | ♠A | -1 | +12 |
| +1.4 | Round 8 | GARTAGANIS | 8 | 2NT | ♥4 | -1 | -3 |
| +1.2 | Round 10 | REESS | 22 | 2♥ | ♣J | +1 | +0 |
| +0.7 | Round 2 | REIGNWOOD | 13 | 4♠ | ♣6 | +1 | +13 |
| +0.7 | Round 2 | REIGNWOOD | 16 | 3NT | ♥9 | +1 | +0 |
| +0.7 | Round 2 | REIGNWOOD | 17 | 4♥x | ♣8 | -1 | -5 |
| +0.7 | Round 3 | 3ST | 6 | 4♥ | ♣8 | +1 | +0 |
| +0.4 | Round 9 | MANFIELD | 16 | 4♠ | ♦8 | +1 | +0 |
| +0.2 | Round 9 | MANFIELD | 18 | 3NT | ♣6 | +1 | +0 |
| +0.1 | Round 3 | 3ST | 3 | 3NT | ♦4 | +1 | +0 |
| -0.1 | Round 9 | MANFIELD | 20 | 2♠ | ♥A | = | -1 |
| -0.2 | Round 5 | COCO CAT | 24 | 2♠ | ♣8 | +1 | -7 |
| -0.3 | Round 9 | MANFIELD | 17 | 4♥ | ♣4 | +1 | +10 |
| -0.4 | Round 2 | REIGNWOOD | 20 | 4♥ | ♠4 | +1 | +0 |
| -0.5 | Round 5 | COCO CAT | 25 | 5♦x | ♣K | -1 | +0 |
| -0.5 | Round 9 | MANFIELD | 11 | 4♠ | ♦8 | +1 | +0 |
| -0.7 | Round 8 | GARTAGANIS | 3 | 1NT | ♠3 | -1 | +2 |
| -0.7 | Round 9 | MANFIELD | 14 | 4♠x | ♦A | -1 | +0 |
| -0.8 | Round 10 | REESS | 27 | 2NT | ♦2 | +1 | +6 |
| -1.2 | Round 7 | CFSC | 20 | 1NT | ♦7 | +1 | -10 |
| -1.3 | Round 3 | 3ST | 9 | 3♦ | ♠K | = | +1 |
| -1.4 | Round 2 | REIGNWOOD | 14 | 3NT | ♠7 | +3 | -14 |
| -1.4 | Round 9 | MANFIELD | 15 | 4♠ | ♦9 | = | -1 |
| -1.5 | Round 5 | COCO CAT | 27 | 1NT | ♠4 | +1 | +0 |
| -1.6 | Round 7 | CFSC | 17 | 3♠ | ♥5 | = | +7 |
| -1.8 | Round 8 | GARTAGANIS | 10 | 2♠ | ♣2 | +3 | -9 |
| -1.8 | Round 9 | MANFIELD | 12 | 5♠ | ♥A | -2 | +6 |
| -2.0 | Round 2 | REIGNWOOD | 19 | 3♥x | ♦8 | -1 | +0 |
| -2.0 | Round 7 | CFSC | 11 | Pass | -3 | ||
| -2.0 | Round 7 | CFSC | 16 | 4♠ | ♥3 | +2 | -1 |
| -2.1 | Round 3 | 3ST | 10 | 1♥ | ♦J | +2 | -2 |
| -2.3 | Round 5 | COCO CAT | 26 | 6NT | ♥A | = | +0 |
| -2.4 | Round 10 | REESS | 26 | 2♦ | ♣J | = | +1 |
| -2.7 | Round 8 | GARTAGANIS | 2 | 5♦ | ♥K | -1 | -12 |
| -2.7 | Round 10 | REESS | 25 | 4♠ | ♣6 | +1 | -1 |
| -3.0 | Round 8 | GARTAGANIS | 4 | 4♠ | ♥A | -1 | +3 |
| -3.4 | Round 3 | 3ST | 5 | 2♠ | ♥Q | -3 | +4 |
| -3.5 | Round 5 | COCO CAT | 23 | 3♠ | ♦Q | -2 | -2 |
| -4.2 | Round 5 | COCO CAT | 22 | 3NT | ♣2 | = | -10 |
| -4.5 | Round 3 | 3ST | 4 | 3NT | ♠7 | +1 | +1 |
| -5.3 | Round 7 | CFSC | 13 | 5♦x | ♠3 | -3 | +12 |
| -5.4 | Round 10 | REESS | 30 | 4♥ | ♠J | = | +0 |
| -6.4 | Round 8 | GARTAGANIS | 5 | 4♠ | ♥6 | = | -7 |
| -6.5 | Round 8 | GARTAGANIS | 9 | 3NT | ♦4 | = | -3 |
| -6.8 | Round 2 | REIGNWOOD | 11 | 4♠ | ♥3 | = | -3 |