ROSENBERG Debbie · USA 2 Mixed
vs par split: bidding -0.25 · play -0.12
Strength of schedule: opponents averaged +0.32/bd (a tough draw) → opponent-adjusted +0.12/bd
Card play — on target: opening leads 81.8% · declarer play 80.0% · defence 72.0%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 50.0% (2) | 88.9% (9) |
| Declarer play | 100.0% (2) | 66.7% (3) |
| Defence | 85.7% (7) | 66.7% (18) |
Opening leads by suit led: ♠ 100.0% (3) · ♥ 66.7% (3) · ♦ 100.0% (1) · ♣ 75.0% (4)
vs par by strain: NT -0.31 (13) · a suit -0.41 (27)
vs par by level: part-score +0.53 (15) · game -0.52 (23) · slam -5.50 (2)
By role: declaring +0.67/bd (-1.60 vs par · 15) · defending -0.71/bd (+0.36 vs par · 25)
By vulnerability: vulnerable -0.03/bd (-0.11 vs par · 18) · not vulnerable -0.33/bd (-0.59 vs par · 22)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 11 | A.Rosenthal | H.Zhang – L.He | Closed | 10 | +6.6 | +0.66 | +1.00 |
| Round 12 | A.Rosenthal | G.Kasle – D.Morse | Closed | 10 | -10.3 | -1.03 | -1.70 |
| Round 14 | M.Zur-Campanile | C.Ju – Z.Shi | Open | 10 | -2.5 | -0.25 | +1.40 |
| Round 15 | M.Zur-Campanile | X.Li – M.Kang | Open | 10 | -1.6 | -0.16 | -2.20 |
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 |
|---|---|---|---|---|---|---|---|
| +10.1 | Round 14 | CHINA Open | 19 | 2♠x | ♣4 | -3 | +12 |
| +9.6 | Round 11 | SANMING EDUCATION | 15 | 3NT | ♦K | -3 | +14 |
| +9.0 | Round 15 | DALIAN AOXIN | 26 | 4♥x | ♣A | -3 | +5 |
| +7.4 | Round 15 | DALIAN AOXIN | 30 | 3NT | ♥5 | +1 | +7 |
| +4.6 | Round 11 | SANMING EDUCATION | 11 | 5♦ | ♣4 | = | +7 |
| +4.6 | Round 11 | SANMING EDUCATION | 16 | 3NT | ♠7 | -2 | +6 |
| +4.0 | Round 11 | SANMING EDUCATION | 19 | 3NT | ♥A | = | +0 |
| +3.9 | Round 12 | USA 1 Seniors | 22 | 6♥ | ♦A | = | +0 |
| +3.5 | Round 14 | CHINA Open | 13 | 3♠ | ♠2 | -1 | +5 |
| +2.6 | Round 12 | USA 1 Seniors | 25 | 6♥ | ♣K | = | -11 |
| +1.7 | Round 14 | CHINA Open | 17 | 4♥ | ♦2 | +1 | +0 |
| +1.4 | Round 11 | SANMING EDUCATION | 12 | 4♥ | ♦J | = | +0 |
| +1.4 | Round 12 | USA 1 Seniors | 30 | 2NT | ♦J | -1 | +5 |
| +1.0 | Round 12 | USA 1 Seniors | 21 | 2♦ | ♥A | -1 | +0 |
| +0.6 | Round 14 | CHINA Open | 12 | 4♠ | ♥A | = | +0 |
| +0.5 | Round 15 | DALIAN AOXIN | 25 | 3NT | ♣4 | = | +1 |
| +0.0 | Round 12 | USA 1 Seniors | 28 | 4♥ | ♣7 | = | +11 |
| -0.2 | Round 15 | DALIAN AOXIN | 24 | 3NT | ♠5 | +2 | +0 |
| -0.6 | Round 11 | SANMING EDUCATION | 20 | 2♠ | ♣4 | +1 | -1 |
| -1.0 | Round 12 | USA 1 Seniors | 24 | 3NT | ♥J | -3 | -7 |
| -1.0 | Round 12 | USA 1 Seniors | 29 | 2♠ | ♣2 | = | -1 |
| -1.1 | Round 15 | DALIAN AOXIN | 29 | 4♠x | ♥A | -1 | -7 |
| -1.2 | Round 12 | USA 1 Seniors | 23 | 3♥ | ♥9 | +1 | -1 |
| -1.5 | Round 11 | SANMING EDUCATION | 17 | 2♠ | ♣7 | +1 | +6 |
| -1.6 | Round 15 | DALIAN AOXIN | 28 | 3NT | ♦7 | +4 | -10 |
| -1.7 | Round 15 | DALIAN AOXIN | 21 | 2♥ | ♠7 | = | +1 |
| -1.8 | Round 15 | DALIAN AOXIN | 23 | 2♠ | ♠2 | +1 | -1 |
| -1.9 | Round 14 | CHINA Open | 11 | 3NT | ♣10 | = | +1 |
| -2.4 | Round 14 | CHINA Open | 20 | 1NT | ♦A | -1 | +1 |
| -2.6 | Round 14 | CHINA Open | 15 | 5♣ | ♠A | -1 | +5 |
| -2.7 | Round 14 | CHINA Open | 18 | 4♥ | ♦A | = | -3 |
| -3.2 | Round 14 | CHINA Open | 16 | 3♠ | ♥A | = | +0 |
| -5.1 | Round 11 | SANMING EDUCATION | 18 | 3♠ | ♣2 | -2 | -5 |
| -5.2 | Round 11 | SANMING EDUCATION | 13 | 3NT | ♣J | +1 | -10 |
| -5.2 | Round 11 | SANMING EDUCATION | 14 | 5♣ | ♦5 | = | -7 |
| -5.2 | Round 15 | DALIAN AOXIN | 27 | 3♠ | ♥8 | = | -6 |
| -5.6 | Round 14 | CHINA Open | 14 | 1♠x | ♠10 | = | -7 |
| -6.2 | Round 12 | USA 1 Seniors | 27 | 4♠ | ♥J | +3 | -3 |
| -6.9 | Round 15 | DALIAN AOXIN | 22 | 3NT | ♥6 | -1 | -12 |
| -9.8 | Round 12 | USA 1 Seniors | 26 | 4♥ | ♦Q | = | -10 |