BERKOWITZ Dana · WILLENKEN
vs par split: bidding -0.64 · play +0.64
Strength of schedule: opponents averaged -0.07/bd (an easy draw) → opponent-adjusted +0.39/bd
Card play — on target: opening leads 76.5% #88 of 187 · declarer play 50.0% #174 of 187 · defence 75.9% #174 of 187
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 0.0% (1) | 81.2% (16) |
| Declarer play | 0.0% (1) | 57.1% (7) |
| Defence | 33.3% (3) | 80.8% (26) |
Opening leads by suit led: ♠ 66.7% (3) · ♥ 100.0% (4) · ♦ 83.3% (6) · ♣ 50.0% (4)
vs par by strain: NT +1.90 (10) · a suit -0.41 (46)
vs par by level: part-score +1.81 (16) · game -0.72 (40)
By role: declaring +1.44/bd (-0.70 vs par · 27) · defending -0.46/bd (+0.66 vs par · 29)
By vulnerability: vulnerable +0.64/bd (+1.63 vs par · 27) · not vulnerable +0.29/bd (-1.52 vs par · 29)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | C.Willenken | W.Zhang – W.Hu | Open | 7 | +4.0 | +0.57 | -0.71 |
| Round 2 | C.Willenken | M.Cichocki – D.Hocheker | Closed | 7 | -6.1 | -0.87 | -2.29 |
| Round 3 | C.Willenken | A.Sontag – R.Taylor | Closed | 7 | +3.4 | +0.49 | -3.00 |
| Round 4 | C.Willenken | A.Kowalski – E.Miszewska | Closed | 7 | -8.1 | -1.16 | +0.14 |
| Round 5 | C.Willenken | Q.Cheng – Y.Hou | Open | 7 | +11.1 | +1.59 | +5.00 |
| Round 6 | C.Willenken | Q.Yan – M.Yang | Closed | 7 | +12.2 | +1.74 | +0.71 |
| Round 7 | C.Willenken | J.Mcallister – M.Zur-Campanile | Open | 7 | +25.4 | +3.63 | +4.00 |
| Round 8 | C.Willenken | I.Delmonte – L.Weinger | Open | 7 | -16.2 | -2.31 | -3.86 |
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 |
|---|---|---|---|---|---|---|---|
| +10.6 | Round 7 | MCALLISTER | 16 | 3♥ | ♣K | -5 | +12 |
| +10.4 | Round 3 | TAYLOR | 18 | 4♠ | ♥7 | +1 | +0 |
| +8.0 | Round 7 | MCALLISTER | 19 | 4♠ | ♥Q | = | +11 |
| +7.5 | Round 6 | HEILONGJIANG TEAM | 8 | 3NT | ♥10 | = | +6 |
| +7.3 | Round 4 | VITAS | 28 | 1NTx | ♣3 | +1 | +7 |
| +7.2 | Round 5 | BARR | 1 | 4♠ | ♥3 | -1 | +10 |
| +6.8 | Round 1 | SUZHOUTAIHU | 7 | 4♠ | ♦K | -2 | +8 |
| +5.5 | Round 7 | MCALLISTER | 18 | 2♥x | ♣10 | -2 | +8 |
| +5.3 | Round 5 | BARR | 6 | 4♥ | ♦K | -1 | +9 |
| +4.8 | Round 1 | SUZHOUTAIHU | 3 | 2NT | ♠K | = | +0 |
| +4.8 | Round 8 | PLATINUM CEM | 25 | 4♥ | ♠2 | +1 | +0 |
| +3.5 | Round 1 | SUZHOUTAIHU | 5 | 1NTx | ♣8 | -1 | +0 |
| +3.2 | Round 2 | HAUGE | 9 | 2♣ | ♦2 | -4 | +7 |
| +3.2 | Round 6 | HEILONGJIANG TEAM | 11 | 3NT | ♦A | = | -2 |
| +2.6 | Round 5 | BARR | 3 | 3♥ | ♠9 | -1 | +3 |
| +2.5 | Round 3 | TAYLOR | 16 | 3♥ | ♣8 | = | -7 |
| +2.5 | Round 6 | HEILONGJIANG TEAM | 13 | 5♦x | ♥Q | -1 | +9 |
| +2.3 | Round 2 | HAUGE | 11 | 4♥ | ♦A | +1 | +0 |
| +2.0 | Round 6 | HEILONGJIANG TEAM | 12 | 2NT | ♣4 | = | +7 |
| +1.6 | Round 7 | MCALLISTER | 15 | 3♦ | ♥A | -3 | -3 |
| +1.5 | Round 8 | PLATINUM CEM | 22 | 4♥ | ♠2 | +1 | +0 |
| +1.3 | Round 3 | TAYLOR | 19 | 3NT | ♠4 | +1 | +1 |
| +1.3 | Round 6 | HEILONGJIANG TEAM | 14 | 4♥ | ♣3 | -2 | -1 |
| +1.2 | Round 4 | VITAS | 23 | 3NT | ♠9 | = | +0 |
| +1.1 | Round 5 | BARR | 5 | 1♠ | ♦7 | = | +0 |
| +1.0 | Round 5 | BARR | 2 | 2♣ | ♠7 | +1 | +0 |
| +0.6 | Round 4 | VITAS | 22 | 4♠ | ♦A | +1 | +0 |
| +0.4 | Round 7 | MCALLISTER | 17 | 4♥ | ♦2 | = | -1 |
| +0.3 | Round 2 | HAUGE | 13 | 4♠ | ♦8 | +1 | +0 |
| +0.1 | Round 1 | SUZHOUTAIHU | 6 | 4♥ | ♣K | +2 | -1 |
| -0.1 | Round 7 | MCALLISTER | 20 | 4♥ | ♦K | = | -1 |
| -0.6 | Round 7 | MCALLISTER | 21 | 4♥ | ♠3 | -1 | +2 |
| -0.7 | Round 8 | PLATINUM CEM | 23 | 3NT | ♠2 | +1 | +1 |
| -0.8 | Round 8 | PLATINUM CEM | 27 | 4♠ | ♦7 | = | +0 |
| -1.0 | Round 2 | HAUGE | 10 | 4♠ | ♣2 | = | +1 |
| -1.1 | Round 6 | HEILONGJIANG TEAM | 10 | 4♠ | ♦5 | = | +0 |
| -1.4 | Round 1 | SUZHOUTAIHU | 2 | 3NT | ♠K | +2 | -1 |
| -1.4 | Round 2 | HAUGE | 14 | 4♠ | ♣J | +1 | -14 |
| -1.6 | Round 1 | SUZHOUTAIHU | 4 | 3♦ | ♦2 | +1 | +0 |
| -1.6 | Round 5 | BARR | 4 | 4♠ | ♥7 | +1 | +0 |
| -1.8 | Round 4 | VITAS | 24 | 3♦ | ♥10 | -2 | +0 |
| -1.9 | Round 4 | VITAS | 26 | 5♣ | ♥A | +1 | +5 |
| -2.1 | Round 3 | TAYLOR | 21 | 4♥ | ♦10 | +1 | +0 |
| -2.5 | Round 3 | TAYLOR | 20 | 2♦x | ♥A | -2 | -4 |
| -2.6 | Round 2 | HAUGE | 12 | 4♥ | ♥6 | +1 | -1 |
| -2.8 | Round 3 | TAYLOR | 17 | 4♥ | ♦2 | -1 | -5 |
| -3.2 | Round 6 | HEILONGJIANG TEAM | 9 | 5♣ | ♥A | = | -14 |
| -3.4 | Round 3 | TAYLOR | 15 | 4♠ | ♦Q | -1 | -6 |
| -3.5 | Round 4 | VITAS | 27 | 3♠ | ♦A | = | -1 |
| -4.2 | Round 8 | PLATINUM CEM | 26 | 4♥ | ♠2 | -2 | -9 |
| -4.5 | Round 5 | BARR | 7 | 4♠ | ♦K | +1 | +13 |
| -6.9 | Round 2 | HAUGE | 8 | 4♥ | ♦2 | +2 | -9 |
| -8.1 | Round 8 | PLATINUM CEM | 24 | 5♥ | ♠Q | -2 | -11 |
| -8.2 | Round 1 | SUZHOUTAIHU | 1 | 5♦x | ♥A | -1 | -11 |
| -8.7 | Round 8 | PLATINUM CEM | 28 | 4♥ | ♠6 | +2 | -8 |
| -10.0 | Round 4 | VITAS | 25 | 4♥ | ♠A | = | -10 |