ZHANG Susan · USA MIX
vs par split: bidding +0.25 · play +0.32
Strength of schedule: opponents averaged +0.01/bd (an average draw) → opponent-adjusted +1.02/bd
Card play — on target: opening leads 80.0% #121 of 268 · declarer play 58.8% #214 of 268 · defence 75.0% #255 of 268
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (4) | 72.7% (11) |
| Declarer play | 66.7% (3) | 57.1% (14) |
| Defence | 62.5% (8) | 80.0% (20) |
Opening leads by suit led: ♠ 80.0% (5) · ♥ 75.0% (4) · ♦ 100.0% (1) · ♣ 80.0% (5)
vs par by strain: NT -1.07 (14) · a suit +1.06 (46)
vs par by level: part-score +1.00 (18) · game +0.59 (39) · slam -2.33 (3)
By role: declaring -0.04/bd (-2.12 vs par · 32) · defending +2.21/bd (+3.64 vs par · 28)
By vulnerability: vulnerable +1.23/bd (+0.70 vs par · 30) · not vulnerable +0.79/bd (+0.43 vs par · 30)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | E.Wold | A.Wildavsky – N.Jacob | Closed | 12 | +24.9 | +2.07 | +1.67 |
| Round 2 | E.Wold | J.Fritsche – K.Reps | Open | 12 | -4.2 | -0.35 | -1.50 |
| Round 3 | E.Wold | G.Chagas – C.Pellegrini | Open | 12 | +16.4 | +1.37 | +0.42 |
| Round 4 | E.Wold | T.Hanlon – C.Boland | Open | 12 | +6.6 | +0.55 | -0.25 |
| Round 5 | E.Wold | S.Burgess – S.Iyengar | Closed | 12 | +16.9 | +1.41 | +2.50 |
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 |
|---|---|---|---|---|---|---|---|
| +12.9 | Round 1 | ADAMANT | 10 | 4♠x | ♥A | -4 | +14 |
| +10.0 | Round 2 | GERMANY OPEN | 22 | 5♠ | ♥9 | -1 | +11 |
| +9.6 | Round 1 | ADAMANT | 6 | 5♣ | ♠10 | -2 | +14 |
| +9.3 | Round 1 | ADAMANT | 11 | 4♠x | ♦J | -2 | +12 |
| +8.0 | Round 5 | BRAITHWAITE | 1 | 4♠ | ♣2 | -1 | +8 |
| +7.5 | Round 1 | ADAMANT | 8 | 5♦ | ♣K | -1 | +10 |
| +7.2 | Round 3 | CHAGAS | 8 | 3NT | ♥K | = | +7 |
| +6.8 | Round 3 | CHAGAS | 1 | 4♠ | ♣4 | -1 | +10 |
| +4.9 | Round 3 | CHAGAS | 12 | 3♥ | ♣5 | = | +1 |
| +4.6 | Round 5 | BRAITHWAITE | 5 | 5♥x | ♠A | -3 | +12 |
| +4.0 | Round 1 | ADAMANT | 7 | 2♦ | ♠3 | +2 | +11 |
| +3.9 | Round 2 | GERMANY OPEN | 13 | 2NT | ♥3 | = | +11 |
| +3.7 | Round 4 | IRELAND | 13 | 1NTxx | ♦3 | -1 | +6 |
| +3.7 | Round 4 | IRELAND | 21 | 3♠ | ♦8 | -2 | +2 |
| +3.3 | Round 2 | GERMANY OPEN | 19 | 4♠ | ♦3 | +2 | +1 |
| +2.9 | Round 4 | IRELAND | 24 | 4♥ | ♠K | +1 | +0 |
| +2.5 | Round 5 | BRAITHWAITE | 3 | 1NT | ♣6 | -1 | -2 |
| +2.5 | Round 5 | BRAITHWAITE | 4 | 2♠ | ♥2 | -1 | +5 |
| +2.3 | Round 5 | BRAITHWAITE | 8 | 3NT | ♠7 | -2 | +5 |
| +2.2 | Round 3 | CHAGAS | 11 | 4♠x | ♦K | -2 | +0 |
| +2.0 | Round 4 | IRELAND | 22 | 6♠x | ♠10 | -1 | -5 |
| +1.9 | Round 2 | GERMANY OPEN | 21 | 5♥ | ♦4 | +1 | -11 |
| +1.8 | Round 4 | IRELAND | 19 | 3NT | ♠10 | = | -11 |
| +1.6 | Round 2 | GERMANY OPEN | 18 | 4♠ | ♥K | +1 | +1 |
| +1.4 | Round 5 | BRAITHWAITE | 11 | 5♣ | ♥K | = | -1 |
| +1.3 | Round 3 | CHAGAS | 6 | 6♥ | ♠A | -1 | +11 |
| +1.1 | Round 4 | IRELAND | 23 | 5♠x | ♦K | +1 | +6 |
| +0.9 | Round 3 | CHAGAS | 9 | 3♦ | ♣K | -1 | -3 |
| +0.9 | Round 4 | IRELAND | 20 | 3NT | ♠J | +1 | -12 |
| +0.7 | Round 3 | CHAGAS | 7 | 2♠ | ♣A | +1 | +0 |
| +0.7 | Round 5 | BRAITHWAITE | 10 | 3♣ | ♦K | -1 | +11 |
| +0.4 | Round 5 | BRAITHWAITE | 7 | 4♥ | ♦3 | = | +0 |
| +0.2 | Round 3 | CHAGAS | 4 | 2♦ | ♦4 | +4 | -10 |
| +0.1 | Round 3 | CHAGAS | 2 | 2♠ | ♠2 | = | +5 |
| +0.1 | Round 3 | CHAGAS | 10 | 4♠ | ♥A | = | +0 |
| +0.1 | Round 5 | BRAITHWAITE | 9 | 3NT | ♥2 | +1 | +1 |
| -0.3 | Round 1 | ADAMANT | 4 | 3♥ | ♣10 | = | -10 |
| -0.5 | Round 4 | IRELAND | 14 | 3♠ | ♦4 | = | +7 |
| -0.9 | Round 5 | BRAITHWAITE | 12 | 4♠ | ♣A | = | +0 |
| -1.1 | Round 1 | ADAMANT | 1 | 3NT | ♠9 | +2 | +0 |
| -1.3 | Round 2 | GERMANY OPEN | 20 | 2♥ | ♦8 | +2 | -1 |
| -1.4 | Round 4 | IRELAND | 17 | 4♥ | ♦Q | -2 | +0 |
| -1.4 | Round 4 | IRELAND | 18 | 4♠ | ♦K | = | -1 |
| -1.5 | Round 2 | GERMANY OPEN | 17 | 5♣ | ♠10 | -2 | +5 |
| -1.6 | Round 3 | CHAGAS | 5 | 4♥ | ♠Q | -2 | -11 |
| -1.7 | Round 1 | ADAMANT | 3 | 3NT | ♥6 | +2 | -1 |
| -2.1 | Round 1 | ADAMANT | 5 | 3NT | ♠5 | +2 | +0 |
| -2.1 | Round 5 | BRAITHWAITE | 6 | 4♠ | ♣3 | = | -1 |
| -2.2 | Round 4 | IRELAND | 16 | 3NT | ♠7 | +1 | +0 |
| -2.3 | Round 2 | GERMANY OPEN | 14 | 4♠ | ♥A | -1 | +2 |
| -2.6 | Round 5 | BRAITHWAITE | 2 | 1NT | ♣Q | -4 | -8 |
| -3.3 | Round 1 | ADAMANT | 12 | 5♦ | ♥8 | +2 | -14 |
| -3.6 | Round 2 | GERMANY OPEN | 16 | 2♥ | ♠3 | +2 | -2 |
| -3.8 | Round 2 | GERMANY OPEN | 23 | 6♣ | ♣3 | +1 | -13 |
| -4.0 | Round 4 | IRELAND | 15 | 5♥x | ♦K | -2 | +5 |
| -4.2 | Round 1 | ADAMANT | 9 | 2♣ | ♥2 | -1 | -5 |
| -4.6 | Round 2 | GERMANY OPEN | 24 | 3NT | ♣10 | -2 | -11 |
| -5.7 | Round 1 | ADAMANT | 2 | 4♥ | ♠K | -2 | -11 |
| -6.4 | Round 3 | CHAGAS | 3 | 5♦ | ♠Q | = | -5 |
| -7.8 | Round 2 | GERMANY OPEN | 15 | 5♦ | ♠A | = | -11 |