BERKOWITZ Dana · BERKSMA
vs par split: bidding -1.32 · play +0.61
Strength of schedule: opponents averaged +0.35/bd (a tough draw) → opponent-adjusted +0.15/bd
Card play — on target: opening leads 57.1% · declarer play 80.0% · defence 92.3%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 50.0% (2) | 60.0% (5) |
| Declarer play | · | 80.0% (5) |
| Defence | 100.0% (5) | 87.5% (8) |
Opening leads by suit led: ♠ 100.0% (1) · ♥ 100.0% (1) · ♦ 33.3% (3) · ♣ 50.0% (2)
vs par by strain: NT +2.00 (7) · a suit -1.62 (21)
vs par by level: part-score -0.88 (16) · game -0.70 (10) · slam +0.50 (2)
By role: declaring -0.53/bd (-2.87 vs par · 15) · defending +0.17/bd (+1.77 vs par · 13)
By vulnerability: vulnerable +0.75/bd (+0.43 vs par · 14) · not vulnerable -1.16/bd (-1.86 vs par · 14)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round of 16 | D.Berkowitz | K.Furuta – T.Nishimura | Closed | 14 | -16.8 | -1.20 | -1.36 |
| Quarterfinal | D.Berkowitz | M.Nowosadzki – K.Dufrat | Closed | 14 | +11.1 | +0.79 | -0.07 |
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 |
|---|---|---|---|---|---|---|---|
| +6.0 | Quarterfinal | SAKR | 13 | 5♣ | ♠A | = | -1 |
| +4.7 | Round of 16 | TAKK | 5 | 6NT | ♣2 | +1 | +13 |
| +3.6 | Quarterfinal | SAKR | 6 | 1NT | ♦2 | -1 | +4 |
| +3.5 | Round of 16 | TAKK | 9 | 2♥ | ♣J | +1 | +6 |
| +3.3 | Quarterfinal | SAKR | 9 | 3♣ | ♥A | -2 | +5 |
| +2.3 | Quarterfinal | SAKR | 8 | 1NT | ♦5 | -2 | +0 |
| +1.9 | Quarterfinal | SAKR | 11 | 4♥ | ♣J | +1 | +0 |
| +1.7 | Quarterfinal | SAKR | 10 | 1NT | ♣6 | = | -1 |
| +1.4 | Quarterfinal | SAKR | 12 | 3♦ | ♠K | -1 | +5 |
| +1.1 | Round of 16 | TAKK | 6 | 3NT | ♥5 | -1 | +11 |
| +0.7 | Round of 16 | TAKK | 3 | 4♥ | ♠9 | +1 | +11 |
| +0.6 | Quarterfinal | SAKR | 3 | 2♠ | ♣9 | -1 | -1 |
| +0.6 | Quarterfinal | SAKR | 14 | 3♣ | ♦K | = | -1 |
| +0.4 | Round of 16 | TAKK | 4 | 2♥ | ♦4 | +2 | +1 |
| +0.3 | Round of 16 | TAKK | 7 | 2♠ | ♥9 | = | -10 |
| -0.0 | Quarterfinal | SAKR | 2 | 3NT | ♥2 | +1 | +1 |
| -0.0 | Quarterfinal | SAKR | 5 | 2♥ | ♣K | +1 | +0 |
| -0.5 | Round of 16 | TAKK | 10 | 2♥ | ♦K | = | +0 |
| -0.7 | Round of 16 | TAKK | 1 | 2♠ | ♦A | +1 | -1 |
| -0.7 | Round of 16 | TAKK | 11 | 2♠ | ♥K | +1 | -4 |
| -0.7 | Quarterfinal | SAKR | 4 | 4♠ | ♣6 | +1 | +0 |
| -1.5 | Round of 16 | TAKK | 14 | 3♦ | ♠A | = | -6 |
| -1.6 | Round of 16 | TAKK | 13 | 4♥ | ♦K | -1 | -7 |
| -1.7 | Quarterfinal | SAKR | 1 | 4♠ | ♦6 | +1 | +0 |
| -5.6 | Round of 16 | TAKK | 12 | 2♣ | ♥9 | -3 | -11 |
| -6.7 | Round of 16 | TAKK | 2 | 3NT | ♣6 | -1 | -14 |
| -7.9 | Quarterfinal | SAKR | 7 | 6♦ | ♠Q | -1 | -12 |
| -10.2 | Round of 16 | TAKK | 8 | 4♥ | ♣Q | = | -8 |