ROSENBERG Michael · WOLFSON
vs par split: bidding -0.62 · play -0.06
Strength of schedule: opponents averaged +0.18/bd (a tough draw) → opponent-adjusted +0.19/bd
Card play — on target: opening leads 92.9% #6 of 148 · declarer play 70.6% #103 of 148 · defence 86.4% #65 of 148
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 80.0% (5) | 100.0% (9) |
| Declarer play | 75.0% (4) | 69.2% (13) |
| Defence | 85.7% (7) | 86.7% (15) |
Opening leads by suit led: ♠ 100.0% (2) · ♥ 100.0% (1) · ♦ 100.0% (8) · ♣ 66.7% (3)
vs par by strain: NT +0.50 (14) · a suit -1.14 (36)
vs par by level: part-score -1.10 (19) · game -0.28 (25) · slam -1.00 (6)
By role: declaring -0.06/bd (-2.54 vs par · 28) · defending +0.10/bd (+1.68 vs par · 22)
By vulnerability: vulnerable -0.05/bd (-0.76 vs par · 25) · not vulnerable +0.06/bd (-0.60 vs par · 25)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | J.Wolfson | A.Kalish – E.Orenstein | Open | 10 | +7.2 | +0.72 | -1.70 |
| Round 2 | J.Wolfson | X.Shen – M.Shen | Open | 10 | +16.8 | +1.68 | -0.60 |
| Round 4 | J.Wolfson | W.Olanski – V.Vainikonis | Closed | 10 | -2.2 | -0.22 | -0.60 |
| Round 6 | J.Wolfson | E.Wold – M.Itabashi | Open | 10 | -7.3 | -0.73 | -2.10 |
| Round 7 | J.Wolfson | T.Brown – P.Buchen | Open | 10 | -14.2 | -1.42 | +1.60 |
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 |
|---|---|---|---|---|---|---|---|
| +9.1 | Round 2 | CHINA EVERTRUST | 11 | 3NT | ♣K | = | +7 |
| +8.9 | Round 1 | KAMINSKI | 2 | 5♦x | ♠5 | = | +6 |
| +6.9 | Round 7 | GRIZZLY KOALAS | 18 | 6♣ | ♦K | -1 | +11 |
| +6.3 | Round 2 | CHINA EVERTRUST | 14 | 4♠ | ♦7 | -1 | -2 |
| +4.8 | Round 7 | GRIZZLY KOALAS | 12 | 5♦ | ♥3 | -1 | +10 |
| +4.1 | Round 6 | LEWIS | 8 | 5♣ | ♥A | +1 | -14 |
| +4.0 | Round 4 | VYTAS | 14 | 3NT | ♦8 | -2 | +6 |
| +3.1 | Round 7 | GRIZZLY KOALAS | 15 | 2♦ | ♣10 | +1 | +0 |
| +3.0 | Round 7 | GRIZZLY KOALAS | 17 | 3NT | ♦4 | +2 | +14 |
| +2.6 | Round 1 | KAMINSKI | 8 | 1NT | ♥Q | +1 | +1 |
| +2.5 | Round 4 | VYTAS | 11 | 3NT | ♣Q | = | -1 |
| +2.4 | Round 1 | KAMINSKI | 3 | 2♠ | ♦7 | +1 | +0 |
| +2.4 | Round 2 | CHINA EVERTRUST | 16 | 6♠ | ♥Q | +1 | -11 |
| +2.1 | Round 6 | LEWIS | 7 | 5♣ | ♠A | = | +2 |
| +2.0 | Round 4 | VYTAS | 19 | 2♥ | ♠10 | -2 | +3 |
| +1.9 | Round 2 | CHINA EVERTRUST | 13 | 6NT | ♥2 | +1 | +9 |
| +1.7 | Round 6 | LEWIS | 6 | 3♥ | ♠J | = | +0 |
| +1.2 | Round 6 | LEWIS | 4 | 4♥ | ♣A | = | +3 |
| +1.1 | Round 6 | LEWIS | 1 | 3♣ | ♥K | = | +0 |
| +0.9 | Round 4 | VYTAS | 17 | 5♣x | ♦A | -2 | +4 |
| +0.5 | Round 2 | CHINA EVERTRUST | 20 | 2♠ | ♣2 | +1 | +0 |
| +0.3 | Round 4 | VYTAS | 12 | 6♦ | ♣5 | = | -2 |
| +0.2 | Round 1 | KAMINSKI | 4 | 2♥ | ♦10 | -1 | -11 |
| +0.1 | Round 1 | KAMINSKI | 7 | 2♣ | ♥6 | +2 | +0 |
| +0.0 | Round 1 | KAMINSKI | 5 | 3♠ | ♥3 | -1 | -2 |
| -0.0 | Round 2 | CHINA EVERTRUST | 15 | 4♥ | ♠3 | = | +0 |
| +0.0 | Round 4 | VYTAS | 20 | 3NT | ♦5 | +2 | -13 |
| -0.1 | Round 1 | KAMINSKI | 1 | 3NT | ♦J | -1 | +4 |
| -0.5 | Round 1 | KAMINSKI | 10 | 3NT | ♦Q | -1 | -6 |
| -0.5 | Round 2 | CHINA EVERTRUST | 17 | 2♠ | ♦K | -1 | -2 |
| -0.7 | Round 2 | CHINA EVERTRUST | 18 | 3NT | ♥4 | +2 | +0 |
| -0.8 | Round 2 | CHINA EVERTRUST | 12 | 1NT | ♣5 | -2 | -1 |
| -1.0 | Round 6 | LEWIS | 10 | 2♠ | ♦3 | +1 | +0 |
| -1.2 | Round 7 | GRIZZLY KOALAS | 13 | 2♠ | ♦7 | -1 | +0 |
| -1.2 | Round 7 | GRIZZLY KOALAS | 19 | 2♥ | ♣8 | = | +9 |
| -1.4 | Round 2 | CHINA EVERTRUST | 19 | 3♥ | ♥4 | +1 | -6 |
| -1.8 | Round 4 | VYTAS | 16 | 5♥ | ♠A | +1 | +3 |
| -2.2 | Round 6 | LEWIS | 9 | 3♠ | ♦10 | -3 | -6 |
| -2.4 | Round 7 | GRIZZLY KOALAS | 16 | 3♠ | ♦A | = | -1 |
| -2.8 | Round 4 | VYTAS | 15 | 4♠ | ♣5 | +1 | +0 |
| -2.8 | Round 6 | LEWIS | 2 | 4♥ | ♦K | = | +1 |
| -2.9 | Round 1 | KAMINSKI | 9 | 2♦ | ♣K | -2 | -5 |
| -3.1 | Round 4 | VYTAS | 13 | 3NT | ♣9 | +2 | +0 |
| -3.5 | Round 1 | KAMINSKI | 6 | 4♠ | ♣A | -1 | -4 |
| -3.7 | Round 6 | LEWIS | 5 | 3NT | ♥6 | = | -7 |
| -4.2 | Round 4 | VYTAS | 18 | 3NT | ♥2 | -1 | -6 |
| -5.6 | Round 7 | GRIZZLY KOALAS | 14 | 5♠ | ♥3 | -2 | +0 |
| -7.8 | Round 6 | LEWIS | 3 | 6♥ | ♦A | = | +0 |
| -10.5 | Round 7 | GRIZZLY KOALAS | 20 | 6♠ | ♣5 | -1 | -13 |
| -11.1 | Round 7 | GRIZZLY KOALAS | 11 | 5♣ | ♥J | -2 | -14 |