ROSENBERG Debbie · ROSENBERG
vs par split: bidding -0.55 · play -0.21
Strength of schedule: opponents averaged +0.13/bd (a tough draw) → opponent-adjusted -0.41/bd
Card play — on target: opening leads 84.6% #43 of 107 · declarer play 68.4% #81 of 107 · defence 89.7% #37 of 107
Bidding activity — not a pass: 39.5% #79 of 107 (73/185)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (3) | 80.0% (10) |
| Declarer play | 33.3% (3) | 75.0% (16) |
| Defence | 80.0% (10) | 94.7% (19) |
Opening leads by suit led: ♠ 75.0% (4) · ♥ 100.0% (1) · ♦ 100.0% (5) · ♣ 66.7% (3)
vs par by strain: NT -1.31 (16) · a suit -0.55 (40)
vs par by level: part-score +1.64 (22) · game -3.50 (28) · slam +3.17 (6)
By role: declaring +0.00/bd (-3.85 vs par · 27) · defending -1.04/bd (+2.10 vs par · 29)
By vulnerability: vulnerable -0.62/bd (+1.79 vs par · 28) · not vulnerable -0.46/bd (-3.32 vs par · 28)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 5 | M.Rosenberg | J.Wolfson – S.Garner | Closed | 14 | -23.3 | -1.66 | -1.29 |
| Round 6 | M.Rosenberg | M.Klukowski – J.Kalita | Closed | 14 | -11.8 | -0.84 | +0.07 |
| Round 7 | M.Rosenberg | A.Palma – A.Manno | Open | 14 | +4.6 | +0.33 | -1.57 |
| Round 8 | M.Rosenberg | G.Shen – C.Dong | Open | 14 | +0.3 | +0.02 | -0.29 |
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 |
|---|---|---|---|---|---|---|---|
| +10.2 | Round 7 | OVERDECK | 13 | 5♣ | ♦5 | = | +0 |
| +9.5 | Round 8 | CHINA OPEN TEAM 1 | 20 | 4♠ | ♣Q | = | -1 |
| +5.4 | Round 7 | OVERDECK | 6 | 3♣ | ♠4 | -3 | +6 |
| +4.7 | Round 8 | CHINA OPEN TEAM 1 | 22 | 2♥ | ♣6 | -2 | +5 |
| +4.2 | Round 7 | OVERDECK | 4 | 3♣ | ♠K | +1 | +0 |
| +3.5 | Round 5 | WOLFSON | 8 | 4♥ | ♦K | = | -11 |
| +3.1 | Round 6 | ZIMMERMANN | 15 | 2♦ | ♣K | +3 | -10 |
| +2.8 | Round 5 | WOLFSON | 12 | 3♥ | ♣A | -1 | +6 |
| +2.7 | Round 8 | CHINA OPEN TEAM 1 | 18 | 4♦ | ♥5 | = | +1 |
| +2.6 | Round 5 | WOLFSON | 10 | 3♥ | ♣T | -1 | +11 |
| +2.6 | Round 8 | CHINA OPEN TEAM 1 | 23 | 3♦ | ♣K | = | +0 |
| +2.5 | Round 6 | ZIMMERMANN | 19 | 2NT | ♦3 | -1 | +5 |
| +2.4 | Round 7 | OVERDECK | 1 | 4♥ | ♠2 | = | +0 |
| +2.4 | Round 7 | OVERDECK | 12 | 2♠ | ♦Q | -1 | +5 |
| +2.0 | Round 7 | OVERDECK | 11 | 1NT | ♠6 | -1 | -2 |
| +1.7 | Round 6 | ZIMMERMANN | 22 | 3♠ | ♥T | -1 | -1 |
| +1.4 | Round 7 | OVERDECK | 9 | 3♣ | ♥4 | +1 | +7 |
| +1.2 | Round 6 | ZIMMERMANN | 27 | 2♥ | ♦2 | +1 | +0 |
| +0.9 | Round 5 | WOLFSON | 2 | 4♠ | ♦3 | +2 | -11 |
| +0.7 | Round 7 | OVERDECK | 7 | 3NT | ♠6 | +1 | +0 |
| +0.6 | Round 8 | CHINA OPEN TEAM 1 | 28 | 4♣ | ♥A | -1 | +2 |
| +0.5 | Round 5 | WOLFSON | 14 | 3♥ | ♣Q | -1 | -2 |
| +0.4 | Round 6 | ZIMMERMANN | 24 | 3♣ | ♠K | +1 | -7 |
| +0.2 | Round 5 | WOLFSON | 11 | 4♥ | ♦3 | = | +1 |
| +0.1 | Round 7 | OVERDECK | 5 | 3NT | ♣9 | +1 | +1 |
| +0.1 | Round 7 | OVERDECK | 14 | 3NT | ♦J | = | +0 |
| -0.2 | Round 5 | WOLFSON | 3 | 3NT | ♦2 | +1 | -1 |
| -0.2 | Round 5 | WOLFSON | 4 | 4♥ | ♠T | +1 | +0 |
| -0.6 | Round 6 | ZIMMERMANN | 17 | 4♠ | ♦4 | = | -8 |
| -0.9 | Round 8 | CHINA OPEN TEAM 1 | 16 | 3NT | ♣5 | = | +0 |
| -1.1 | Round 8 | CHINA OPEN TEAM 1 | 27 | 3NT | ♠4 | +1 | -11 |
| -1.2 | Round 6 | ZIMMERMANN | 26 | 2♥ | ♦Q | +1 | +10 |
| -1.3 | Round 8 | CHINA OPEN TEAM 1 | 17 | 6♣ | ♥5 | = | +0 |
| -1.5 | Round 6 | ZIMMERMANN | 25 | 3NT | ♦3 | +1 | -11 |
| -1.5 | Round 8 | CHINA OPEN TEAM 1 | 21 | 7♦x | ♥K | -3 | -5 |
| -1.6 | Round 6 | ZIMMERMANN | 16 | 3NT | ♥3 | +2 | -1 |
| -1.6 | Round 6 | ZIMMERMANN | 23 | 4♥ | ♣3 | +1 | +0 |
| -1.9 | Round 8 | CHINA OPEN TEAM 1 | 19 | 3NT | ♥9 | = | +11 |
| -2.1 | Round 6 | ZIMMERMANN | 18 | 6NT | ♠4 | +1 | +11 |
| -2.1 | Round 8 | CHINA OPEN TEAM 1 | 26 | 4♥ | ♣5 | = | +0 |
| -2.3 | Round 6 | ZIMMERMANN | 21 | 3♣ | ♦3 | = | +0 |
| -2.3 | Round 7 | OVERDECK | 10 | 2♥ | ♣A | -1 | +0 |
| -2.4 | Round 7 | OVERDECK | 2 | 4♠ | ♥3 | -1 | -10 |
| -2.4 | Round 8 | CHINA OPEN TEAM 1 | 15 | 3♣ | ♥Q | -2 | +0 |
| -2.6 | Round 8 | CHINA OPEN TEAM 1 | 24 | 3♦ | ♣A | = | +0 |
| -2.7 | Round 5 | WOLFSON | 5 | 4♥ | ♠Q | +2 | -11 |
| -3.2 | Round 6 | ZIMMERMANN | 20 | 6♥ | ♥3 | = | +13 |
| -4.2 | Round 5 | WOLFSON | 7 | 3NT | ♥6 | +2 | +12 |
| -4.4 | Round 5 | WOLFSON | 9 | 4♠x | ♥7 | -2 | +0 |
| -6.0 | Round 8 | CHINA OPEN TEAM 1 | 25 | 3NT | ♦4 | -1 | -6 |
| -6.6 | Round 5 | WOLFSON | 6 | 6♣ | ♠J | = | +0 |
| -6.6 | Round 5 | WOLFSON | 13 | 4♥ | ♠4 | +1 | -1 |
| -6.6 | Round 6 | ZIMMERMANN | 28 | 6♥ | ♦5 | = | +0 |
| -8.9 | Round 5 | WOLFSON | 1 | 4♥ | ♣3 | -2 | -11 |
| -9.3 | Round 7 | OVERDECK | 3 | 4NT | ♥7 | +2 | -17 |
| -10.3 | Round 7 | OVERDECK | 8 | 3NTx | ♥T | -3 | -12 |