BERKOWITZ David · MARK GORDON
vs par split: bidding +1.57 · play +1.26
Strength of schedule: opponents averaged -0.28/bd (an easy draw) → opponent-adjusted +1.63/bd
Card play — on target: opening leads 100.0% #1 of 579 · declarer play 83.3% #129 of 579 · defence 100.0% #1 of 579
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 100.0% (5) |
| Declarer play | 50.0% (4) | 100.0% (8) |
| Defence | 100.0% (4) | 100.0% (14) |
Opening leads by suit led: ♠ 100.0% (1) · ♥ 100.0% (1) · ♦ 100.0% (1) · ♣ 100.0% (2)
vs par by strain: NT +0.82 (11) · a suit +3.75 (24)
vs par by level: part-score +2.90 (21) · game +2.09 (11) · slam +5.00 (3)
By role: declaring +0.11/bd (-2.00 vs par · 17) · defending +3.61/bd (+7.39 vs par · 18)
By vulnerability: vulnerable +1.91/bd (+1.82 vs par · 17) · not vulnerable +1.91/bd (+3.78 vs par · 18)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | A.Sontag | G.Manna – K.Samant | Open | 7 | +9.4 | +1.34 | +3.29 |
| Round 2 | A.Sontag | L.Zhang – S.Shen | Open | 7 | +23.0 | +3.29 | +4.71 |
| Round 3 | A.Sontag | L.Dong – Y.Wu | Open | 7 | +18.8 | +2.69 | -0.29 |
| Round 6 | A.Sontag | S.Penfold – N.Senior | Open | 7 | +25.6 | +3.66 | +6.29 |
| Round 7 | A.Sontag | U.Kasimir – P.Jokisch | Open | 7 | -10.0 | -1.43 | +0.14 |
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 |
|---|---|---|---|---|---|---|---|
| +12.1 | Round 3 | CHINA OPN(A) | 16 | 6♦ | ♣6 | -1 | +14 |
| +9.0 | Round 2 | REDBULL | 11 | 6♠ | ♥K | -1 | +14 |
| +8.2 | Round 2 | REDBULL | 13 | 3♥ | ♦5 | +2 | +10 |
| +7.9 | Round 6 | PENFOLD | 9 | 3♦ | ♠Q | +3 | +15 |
| +7.6 | Round 3 | CHINA OPN(A) | 21 | 4♠ | ♥J | +2 | +17 |
| +6.9 | Round 2 | REDBULL | 9 | 3NT | ♦K | -1 | +10 |
| +4.9 | Round 6 | PENFOLD | 14 | 5♥ | ♦6 | +1 | +5 |
| +3.6 | Round 6 | PENFOLD | 8 | 3♣ | ♦J | +1 | +7 |
| +3.5 | Round 6 | PENFOLD | 12 | 3NT | ♣2 | -1 | +10 |
| +3.4 | Round 1 | PODDAR DEVELOPERS | 1 | 3♠ | ♦J | -1 | -2 |
| +3.4 | Round 2 | REDBULL | 14 | 2♥ | ♥4 | = | +6 |
| +3.3 | Round 6 | PENFOLD | 10 | 3♣ | ♦10 | -1 | +6 |
| +3.0 | Round 1 | PODDAR DEVELOPERS | 3 | 3♠ | ♣9 | -3 | +5 |
| +3.0 | Round 3 | CHINA OPN(A) | 20 | 3NT | ♠7 | +1 | -12 |
| +2.9 | Round 2 | REDBULL | 8 | 1NT | ♣4 | +1 | +6 |
| +2.4 | Round 1 | PODDAR DEVELOPERS | 4 | 2♠ | ♣2 | = | +6 |
| +2.3 | Round 6 | PENFOLD | 11 | 2♥ | ♦2 | +1 | +0 |
| +2.0 | Round 7 | KASIMIRS DREAMTEAM | 21 | 4♠ | ♥5 | -1 | +5 |
| +1.9 | Round 1 | PODDAR DEVELOPERS | 2 | 3NT | ♥6 | -2 | +6 |
| +1.8 | Round 2 | REDBULL | 12 | 2♦ | ♦5 | +2 | +0 |
| +1.8 | Round 7 | KASIMIRS DREAMTEAM | 18 | 2NT | ♦Q | -1 | +5 |
| +1.2 | Round 3 | CHINA OPN(A) | 18 | 1NT | ♥3 | -1 | +2 |
| +1.2 | Round 3 | CHINA OPN(A) | 19 | 3NT | ♦6 | = | -17 |
| +0.7 | Round 1 | PODDAR DEVELOPERS | 5 | 2♠ | ♠3 | +2 | +1 |
| +0.3 | Round 7 | KASIMIRS DREAMTEAM | 20 | 4♥ | ♦6 | +2 | -13 |
| +0.2 | Round 1 | PODDAR DEVELOPERS | 6 | 2NT | ♦Q | = | +6 |
| +0.1 | Round 6 | PENFOLD | 13 | 2♦ | ♠A | -1 | +1 |
| +0.0 | Round 7 | KASIMIRS DREAMTEAM | 19 | 1NT | ♠2 | = | -1 |
| -1.6 | Round 7 | KASIMIRS DREAMTEAM | 17 | 3♦ | ♠K | -2 | -1 |
| -2.0 | Round 3 | CHINA OPN(A) | 15 | 2♠ | ♥J | = | +0 |
| -2.2 | Round 1 | PODDAR DEVELOPERS | 7 | 5♣ | ♥J | = | +1 |
| -3.5 | Round 7 | KASIMIRS DREAMTEAM | 15 | 4♠ | ♣K | = | +11 |
| -4.3 | Round 3 | CHINA OPN(A) | 17 | 1NT | ♠Q | -2 | -6 |
| -9.0 | Round 7 | KASIMIRS DREAMTEAM | 16 | 2♣x | ♣Q | -4 | -5 |
| -9.2 | Round 2 | REDBULL | 10 | 6♦ | ♦9 | -2 | -13 |