ZOCHOWSKA Joanna · LEIBOWITZ
vs par split: bidding -0.21 · play -0.16
Strength of schedule: opponents averaged +0.04/bd (an average draw) → opponent-adjusted -0.88/bd
Card play — on target: opening leads 95.0% #3 of 145 · declarer play 85.7% #26 of 145 · defence 89.2% #35 of 145
Bidding activity — not a pass: 37.5% #135 of 145 (75/200)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (7) | 92.3% (13) |
| Declarer play | 100.0% (2) | 83.3% (12) |
| Defence | 90.9% (11) | 88.5% (26) |
Opening leads by suit led: ♠ 80.0% (5) · ♦ 100.0% (10) · ♣ 100.0% (5)
vs par by strain: NT -0.56 (23) · a suit -0.28 (47)
vs par by level: part-score -0.57 (28) · game -0.50 (38) · slam +2.25 (4)
By role: declaring -0.66/bd (-2.79 vs par · 33) · defending -1.16/bd (+1.78 vs par · 37)
By vulnerability: vulnerable -0.25/bd (-0.09 vs par · 35) · not vulnerable -1.59/bd (-0.66 vs par · 35)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | T.Leibowitz | M.Rimstedt – S.Buus Thomsen | Closed | 14 | -20.3 | -1.45 | -2.43 |
| Round 3 | T.Leibowitz | A.Manno – I.Gronkvist | Closed | 14 | -13.7 | -0.98 | -0.36 |
| Round 5 | T.Leibowitz | M.Schaltz – J.Nab | Closed | 14 | -5.1 | -0.36 | -0.36 |
| Round 7 | T.Leibowitz | J.Donn – A.Bhargava | Closed | 14 | +13.4 | +0.96 | +1.93 |
| Round 8 | T.Leibowitz | M.Di Franco – H.Kim | Closed | 14 | -38.8 | -2.77 | -0.64 |
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 |
|---|---|---|---|---|---|---|---|
| +12.9 | Round 7 | BHARGAVA | 9 | 3♠x | ♥Q | = | +14 |
| +9.5 | Round 8 | SEOUL | 28 | 5♣ | ♠4 | -1 | +16 |
| +8.5 | Round 7 | BHARGAVA | 4 | 4♥ | ♠A | = | +13 |
| +8.2 | Round 7 | BHARGAVA | 12 | 5♦ | ♥7 | = | +0 |
| +6.5 | Round 3 | FERM | 6 | 6♦ | ♠K | -2 | +11 |
| +6.3 | Round 3 | FERM | 7 | 3NT | ♥T | -1 | +6 |
| +5.3 | Round 1 | WARNER | 6 | 6♣ | ♥A | = | -2 |
| +3.6 | Round 5 | COLE | 4 | 5♦ | ♦9 | -1 | +12 |
| +3.3 | Round 8 | SEOUL | 19 | 4♥ | ♠A | -1 | +5 |
| +3.0 | Round 7 | BHARGAVA | 13 | 6♥ | ♠8 | = | +0 |
| +2.8 | Round 1 | WARNER | 7 | 2♠ | ♦3 | -2 | +8 |
| +2.3 | Round 7 | BHARGAVA | 10 | 3♠ | ♦A | -1 | +6 |
| +2.2 | Round 5 | COLE | 14 | 4♠ | ♥Q | +1 | +0 |
| +2.0 | Round 3 | FERM | 11 | 4♠ | ♣A | -1 | +5 |
| +1.8 | Round 8 | SEOUL | 24 | 4♥ | ♦Q | -1 | +10 |
| +1.6 | Round 8 | SEOUL | 22 | 1NT | ♥T | -1 | -1 |
| +1.4 | Round 5 | COLE | 13 | 4♦ | ♣K | = | +0 |
| +1.3 | Round 5 | COLE | 11 | 2NT | ♥Q | +1 | -6 |
| +1.2 | Round 3 | FERM | 4 | 1NT | ♣3 | = | +5 |
| +0.8 | Round 7 | BHARGAVA | 1 | 3NT | ♣4 | +1 | -1 |
| +0.7 | Round 5 | COLE | 7 | 4♥ | ♠J | +2 | -13 |
| +0.6 | Round 5 | COLE | 8 | 1♥ | ♠T | +1 | +0 |
| +0.5 | Round 1 | WARNER | 8 | 3♣x | ♠J | -2 | +0 |
| +0.5 | Round 5 | COLE | 2 | 1NT | ♠6 | +1 | +9 |
| +0.4 | Round 3 | FERM | 8 | 3♦ | ♣4 | +1 | +0 |
| +0.4 | Round 3 | FERM | 10 | 2NT | ♦4 | +2 | -10 |
| +0.4 | Round 3 | FERM | 12 | 2♣ | ♣9 | +1 | +0 |
| +0.3 | Round 1 | WARNER | 12 | 3NT | ♥4 | +1 | +0 |
| +0.2 | Round 1 | WARNER | 11 | 3NT | ♥T | +1 | +1 |
| +0.1 | Round 5 | COLE | 6 | 3NT | ♠6 | = | +0 |
| +0.1 | Round 7 | BHARGAVA | 6 | 1NT | ♣3 | +1 | +7 |
| +0.0 | Round 1 | WARNER | 2 | 5♣ | ♦A | = | -3 |
| -0.4 | Round 1 | WARNER | 3 | 4♥ | ♠4 | +2 | -1 |
| -0.8 | Round 5 | COLE | 1 | 2♥ | ♦9 | -1 | -8 |
| -0.8 | Round 5 | COLE | 12 | 1NT | ♥3 | = | -1 |
| -0.9 | Round 7 | BHARGAVA | 8 | 5♣ | ♥Q | = | -1 |
| -1.0 | Round 1 | WARNER | 4 | 2♦ | ♣Q | +1 | -6 |
| -1.0 | Round 8 | SEOUL | 25 | 2♥ | ♦8 | +2 | -10 |
| -1.3 | Round 3 | FERM | 13 | 4♥ | ♣7 | +1 | +12 |
| -1.3 | Round 8 | SEOUL | 17 | 4♥ | ♦K | +1 | +0 |
| -1.7 | Round 7 | BHARGAVA | 11 | 3♥ | ♠3 | +2 | -6 |
| -2.0 | Round 1 | WARNER | 1 | 3NT | ♣K | = | +1 |
| -2.0 | Round 1 | WARNER | 14 | 3NT | ♦6 | +1 | +0 |
| -2.1 | Round 7 | BHARGAVA | 14 | 2♠ | ♣K | -1 | +2 |
| -2.5 | Round 5 | COLE | 9 | 3NT | ♦3 | = | +2 |
| -2.9 | Round 1 | WARNER | 13 | 3♥ | ♠2 | +1 | -10 |
| -2.9 | Round 8 | SEOUL | 26 | 4♥ | ♦T | -1 | -6 |
| -3.0 | Round 3 | FERM | 3 | 3NT | ♥2 | -2 | -8 |
| -3.1 | Round 7 | BHARGAVA | 3 | 2NT | ♠6 | = | +0 |
| -3.3 | Round 3 | FERM | 5 | 2♥ | ♦4 | = | -6 |
| -3.4 | Round 5 | COLE | 5 | 3NT | ♦7 | = | +0 |
| -3.5 | Round 5 | COLE | 3 | 1NT | ♥6 | +2 | -8 |
| -3.5 | Round 7 | BHARGAVA | 5 | 3NT | ♣A | +2 | +0 |
| -3.5 | Round 8 | SEOUL | 16 | 4♠ | ♦A | = | +0 |
| -4.0 | Round 3 | FERM | 14 | 1NTx | ♣J | -2 | +3 |
| -4.3 | Round 3 | FERM | 1 | 3NT | ♦Q | -2 | -6 |
| -4.4 | Round 1 | WARNER | 5 | 3♦ | ♥6 | = | +0 |
| -4.5 | Round 5 | COLE | 10 | 3♥ | ♣9 | -3 | +8 |
| -4.9 | Round 7 | BHARGAVA | 2 | 5♥ | ♠A | = | -8 |
| -4.9 | Round 8 | SEOUL | 20 | 4♥ | ♦2 | +1 | +0 |
| -5.7 | Round 3 | FERM | 9 | 5♦ | ♠J | -3 | -10 |
| -5.7 | Round 8 | SEOUL | 23 | 1NT | ♥T | -1 | -6 |
| -6.2 | Round 7 | BHARGAVA | 7 | 4♥ | ♣A | = | +1 |
| -6.8 | Round 1 | WARNER | 9 | 4♠ | ♠9 | -2 | -13 |
| -7.6 | Round 8 | SEOUL | 15 | 4♠ | ♥A | -1 | -3 |
| -8.4 | Round 8 | SEOUL | 18 | 4♠ | ♦6 | = | -3 |
| -9.0 | Round 8 | SEOUL | 21 | 4♥ | ♦A | -1 | -11 |
| -9.3 | Round 3 | FERM | 2 | 5♦ | ♠K | = | -7 |
| -9.9 | Round 1 | WARNER | 10 | 5♥x | ♣K | -1 | -9 |
| -10.7 | Round 8 | SEOUL | 27 | 6♥ | ♦Q | = | +0 |