BERKOWITZ Lisa · POLLACK
vs par split: bidding +1.26 · play +0.09
Strength of schedule: opponents averaged +0.23/bd (a tough draw) → opponent-adjusted +0.95/bd
Card play — on target: opening leads 76.0% #349 of 518 · declarer play 76.2% #228 of 517 · defence 87.5% #117 of 518
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 50.0% (6) | 84.2% (19) |
| Declarer play | 83.3% (6) | 73.3% (15) |
| Defence | 81.8% (11) | 89.7% (29) |
Opening leads by suit led: ♠ 80.0% (5) · ♥ 85.7% (7) · ♦ 80.0% (5) · ♣ 62.5% (8)
vs par by strain: NT -0.50 (20) · a suit +1.97 (60)
vs par by level: part-score +0.95 (40) · game +1.64 (36) · slam +2.75 (4)
By role: declaring -0.30/bd (-1.85 vs par · 40) · defending +1.74/bd (+4.55 vs par · 40)
By vulnerability: vulnerable +0.17/bd (+1.30 vs par · 40) · not vulnerable +1.26/bd (+1.40 vs par · 40)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | D.Berkowitz | N.Domichi – S.Gupta | Open | 10 | +24.4 | +2.44 | +3.50 |
| Round 2 | D.Berkowitz | M.Michielsen – Z.Mahmood | Open | 10 | -8.8 | -0.88 | -1.30 |
| Round 4 | D.Berkowitz | C.Willenken – S.Brock | Closed | 10 | +3.1 | +0.31 | +2.10 |
| Round 5 | D.Berkowitz | I.Levitina – S.Lev | Open | 10 | +1.2 | +0.12 | -0.10 |
| Round 6 | D.Berkowitz | N.Khandheria – S.Thakral | Closed | 10 | +21.8 | +2.18 | +3.40 |
| Round 7 | D.Berkowitz | T.Teramoto – M.Sato | Open | 10 | -10.2 | -1.02 | -3.30 |
| Round 9 | D.Berkowitz | G.Cohler – L.Nitabach | Closed | 10 | +16.6 | +1.66 | +3.70 |
| Round 10 | D.Berkowitz | C.Lorenzini – A.Huberschwiller | Open | 10 | +9.2 | +0.92 | +2.80 |
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 |
|---|---|---|---|---|---|---|---|
| +12.0 | Round 1 | INDOJAPAN | 3 | 4♠ | ♣J | -4 | +17 |
| +8.8 | Round 6 | FORMIDABLES | 3 | 6♥ | ♠3 | = | +0 |
| +8.6 | Round 1 | INDOJAPAN | 6 | 3♦ | ♥7 | +1 | +11 |
| +8.4 | Round 5 | MAHAFFEY | 22 | 3NT | ♣7 | -1 | +6 |
| +7.8 | Round 6 | FORMIDABLES | 4 | 1NT | ♠6 | +2 | +10 |
| +6.9 | Round 9 | NITABACH | 12 | 6♥x | ♠K | -2 | +13 |
| +6.4 | Round 7 | 3ST | 20 | 2♥ | ♠3 | -1 | +12 |
| +6.0 | Round 6 | FORMIDABLES | 5 | 4♠ | ♣A | +2 | +11 |
| +5.7 | Round 10 | WARD PLATT | 30 | 3♥ | ♠J | -1 | +10 |
| +5.6 | Round 9 | NITABACH | 14 | 5♦ | ♥K | = | +7 |
| +5.5 | Round 4 | WILSON | 13 | 3NT | ♦2 | = | +10 |
| +5.4 | Round 10 | WARD PLATT | 27 | 3NT | ♦2 | -2 | +11 |
| +4.8 | Round 2 | NOLAND | 11 | 4♠ | ♥9 | -1 | +8 |
| +4.3 | Round 1 | INDOJAPAN | 9 | 1NT | ♣7 | +3 | -1 |
| +4.0 | Round 10 | WARD PLATT | 26 | 4♥ | ♠A | -2 | +7 |
| +3.8 | Round 2 | NOLAND | 12 | 4♠ | ♦4 | = | +10 |
| +3.2 | Round 6 | FORMIDABLES | 1 | 5♦ | ♣A | = | +7 |
| +3.2 | Round 6 | FORMIDABLES | 7 | 3♣ | ♦2 | +2 | +11 |
| +2.9 | Round 9 | NITABACH | 13 | 3NT | ♠Q | -2 | +8 |
| +2.9 | Round 10 | WARD PLATT | 24 | 2♠ | ♠2 | = | -1 |
| +2.8 | Round 1 | INDOJAPAN | 7 | 1♠ | ♦Q | -1 | +5 |
| +2.8 | Round 5 | MAHAFFEY | 29 | 3NT | ♦10 | = | -1 |
| +2.6 | Round 7 | 3ST | 18 | 6♣ | ♦K | = | -2 |
| +2.0 | Round 7 | 3ST | 19 | 3♣ | ♦K | -1 | +0 |
| +2.0 | Round 9 | NITABACH | 19 | 4♥ | ♣5 | = | +0 |
| +1.9 | Round 4 | WILSON | 16 | 3♣ | ♠3 | -1 | +12 |
| +1.7 | Round 10 | WARD PLATT | 23 | 4♥ | ♠2 | -1 | +12 |
| +1.6 | Round 7 | 3ST | 17 | 3♠ | ♣2 | = | -7 |
| +1.2 | Round 4 | WILSON | 18 | 3♠ | ♥3 | = | +0 |
| +1.1 | Round 4 | WILSON | 12 | 3♣ | ♠K | -1 | +1 |
| +1.1 | Round 5 | MAHAFFEY | 30 | 3♠x | ♥3 | -2 | +4 |
| +1.0 | Round 1 | INDOJAPAN | 2 | 3NT | ♥3 | +1 | +0 |
| +1.0 | Round 1 | INDOJAPAN | 8 | 2♦ | ♣Q | +2 | +7 |
| +0.8 | Round 4 | WILSON | 20 | 2♠ | ♥5 | -1 | +1 |
| +0.8 | Round 5 | MAHAFFEY | 24 | 2♠ | ♥8 | +2 | -6 |
| +0.7 | Round 2 | NOLAND | 17 | 4♥x | ♥10 | -1 | -5 |
| +0.6 | Round 4 | WILSON | 17 | 3NT | ♥6 | = | +1 |
| +0.5 | Round 4 | WILSON | 19 | 2♥ | ♦Q | +2 | +8 |
| +0.4 | Round 9 | NITABACH | 16 | 4♠ | ♦8 | +1 | +0 |
| +0.3 | Round 1 | INDOJAPAN | 4 | 4♠ | ♥3 | +1 | +0 |
| +0.2 | Round 7 | 3ST | 16 | 4♠ | ♥8 | = | -1 |
| +0.2 | Round 9 | NITABACH | 18 | 3NT | ♣4 | +1 | +0 |
| +0.1 | Round 10 | WARD PLATT | 21 | 3♠ | ♥Q | -2 | -1 |
| -0.1 | Round 9 | NITABACH | 20 | 1NT | ♦6 | +1 | -1 |
| -0.3 | Round 2 | NOLAND | 13 | 4♠ | ♦8 | +2 | +13 |
| -0.3 | Round 9 | NITABACH | 17 | 4♥ | ♣6 | +1 | +10 |
| -0.4 | Round 2 | NOLAND | 20 | 4♥ | ♠7 | +1 | +0 |
| -0.4 | Round 4 | WILSON | 11 | 1NT | ♦2 | = | -1 |
| -0.5 | Round 9 | NITABACH | 11 | 4♠ | ♥A | +1 | +0 |
| -0.5 | Round 9 | NITABACH | 15 | 4♠ | ♦9 | +1 | +0 |
| -0.6 | Round 6 | FORMIDABLES | 8 | 2♠ | ♥2 | +1 | -6 |
| -0.7 | Round 10 | WARD PLATT | 29 | 2♠ | ♦K | = | +0 |
| -0.8 | Round 7 | 3ST | 11 | 2♠ | ♦7 | -2 | +0 |
| -1.0 | Round 1 | INDOJAPAN | 10 | 3♦ | ♥5 | -1 | +1 |
| -1.2 | Round 6 | FORMIDABLES | 2 | 3NT | ♥Q | +1 | -1 |
| -1.5 | Round 4 | WILSON | 14 | 4♦ | ♠J | -1 | -4 |
| -1.5 | Round 5 | MAHAFFEY | 27 | 1NT | ♠4 | +1 | +0 |
| -1.5 | Round 6 | FORMIDABLES | 10 | 3♥ | ♥6 | -1 | +0 |
| -1.6 | Round 5 | MAHAFFEY | 25 | 3♣ | ♠6 | +2 | -2 |
| -1.7 | Round 5 | MAHAFFEY | 21 | 2♦ | ♣4 | = | +0 |
| -1.7 | Round 10 | WARD PLATT | 25 | 4♠ | ♣2 | = | +0 |
| -1.8 | Round 6 | FORMIDABLES | 6 | 4♠ | ♦3 | +1 | +0 |
| -1.9 | Round 1 | INDOJAPAN | 5 | 2♠ | ♥Q | +1 | +0 |
| -2.0 | Round 2 | NOLAND | 19 | 3♥x | ♦8 | -1 | +0 |
| -2.1 | Round 6 | FORMIDABLES | 9 | 3♠ | ♦Q | -1 | +2 |
| -2.2 | Round 2 | NOLAND | 14 | 3NT | ♠7 | +2 | -14 |
| -2.3 | Round 5 | MAHAFFEY | 23 | 2♥ | ♣5 | +1 | +0 |
| -2.3 | Round 5 | MAHAFFEY | 26 | 6NT | ♦7 | = | +0 |
| -2.4 | Round 7 | 3ST | 14 | 5♣ | ♥A | = | +0 |
| -2.5 | Round 5 | MAHAFFEY | 28 | 1NT | ♠3 | -2 | -2 |
| -2.7 | Round 1 | INDOJAPAN | 1 | 2♠ | ♥A | -2 | -5 |
| -2.7 | Round 2 | NOLAND | 18 | 2♦x | ♥K | -1 | -2 |
| -2.8 | Round 7 | 3ST | 15 | 2♠ | ♥Q | = | -6 |
| -3.8 | Round 10 | WARD PLATT | 22 | 2♥ | ♣A | -1 | -5 |
| -4.2 | Round 2 | NOLAND | 15 | 3NT | ♠Q | -1 | -16 |
| -4.4 | Round 10 | WARD PLATT | 28 | 4♥ | ♦3 | -1 | -5 |
| -6.3 | Round 2 | NOLAND | 16 | 3♣ | ♥10 | +1 | -7 |
| -6.6 | Round 4 | WILSON | 15 | 3NT | ♥4 | = | -7 |
| -7.3 | Round 7 | 3ST | 12 | 3NT | ♠3 | -1 | -12 |
| -9.7 | Round 7 | 3ST | 13 | 4♠ | ♦7 | -1 | -17 |