CHANG Nolan · BERK
vs par split: bidding -0.42 · play +0.11
Strength of schedule: opponents averaged -0.25/bd (an easy draw) → opponent-adjusted +0.02/bd
Card play — on target: opening leads 89.5% #2 of 17 · declarer play 72.2% #10 of 17 · defence 80.6% #12 of 17
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 66.7% (6) | 100.0% (13) |
| Declarer play | 75.0% (4) | 71.4% (14) |
| Defence | 88.9% (9) | 77.3% (22) |
Opening leads by suit led: ♠ 75.0% (4) · ♥ 100.0% (3) · ♦ 100.0% (5) · ♣ 85.7% (7)
vs par by strain: NT -0.77 (17) · a suit -0.15 (47)
vs par by level: part-score +0.42 (26) · game -0.61 (33) · slam -2.20 (5)
By role: declaring +1.43/bd (-1.79 vs par · 33) · defending -0.98/bd (+1.26 vs par · 31)
By vulnerability: vulnerable -0.86/bd (-0.81 vs par · 32) · not vulnerable +1.39/bd (+0.19 vs par · 32)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Quarterfinal | H.Berk | H.Li – S.Liu | Closed | 16 | +0.9 | +0.06 | +0.44 |
| Quarterfinal | S.Amer | H.Li – S.Liu | Closed | 16 | +22.1 | +1.38 | -2.38 |
| Semifinal | S.Amer | O.Kriegel – B.Snowden | Open | 16 | -24.6 | -1.54 | +0.62 |
| Final | J.Olsen | F.Yu – K.Jin | Open | 16 | +18.6 | +1.16 | +0.06 |
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 |
|---|---|---|---|---|---|---|---|
| +11.0 | Final | CHINA XNWY | 12 | 6♥ | ♠2 | = | +0 |
| +9.7 | Quarterfinal | CHINA WFL | 30 | 6♠ | ♥6 | = | +0 |
| +8.0 | Quarterfinal | CHINA WFL | 4 | 7NT | ♦2 | = | +0 |
| +8.0 | Final | CHINA XNWY | 1 | 4♥ | ♦A | = | +8 |
| +6.7 | Quarterfinal | CHINA WFL | 17 | 4♠ | ♣7 | = | +0 |
| +6.7 | Semifinal | USA JENG | 24 | 3NT | ♣Q | = | +0 |
| +6.4 | Quarterfinal | CHINA WFL | 22 | 6♣ | ♠A | +1 | -11 |
| +6.0 | Quarterfinal | CHINA WFL | 25 | 4♥ | ♦A | +1 | +1 |
| +5.7 | Quarterfinal | CHINA WFL | 32 | 2♥ | ♣6 | -2 | +7 |
| +4.0 | Semifinal | USA JENG | 32 | 4NT | ♣Q | +1 | +11 |
| +4.0 | Final | CHINA XNWY | 15 | 2♠ | ♦2 | = | +1 |
| +3.7 | Quarterfinal | CHINA WFL | 13 | 4♥ | ♣4 | +1 | +1 |
| +3.0 | Semifinal | USA JENG | 31 | 1♠ | ♦5 | +1 | +11 |
| +3.0 | Final | CHINA XNWY | 5 | 2♥ | ♠2 | = | -1 |
| +2.6 | Quarterfinal | CHINA WFL | 7 | 3♥ | ♦A | -1 | +6 |
| +2.0 | Semifinal | USA JENG | 20 | 3♣ | ♠K | = | +0 |
| +2.0 | Final | CHINA XNWY | 7 | 3♠ | ♣6 | -1 | +6 |
| +2.0 | Final | CHINA XNWY | 10 | 1NT | ♦8 | +1 | +6 |
| +1.7 | Quarterfinal | CHINA WFL | 8 | 3♣ | ♣J | = | +0 |
| +1.6 | Quarterfinal | CHINA WFL | 18 | 2♦ | ♣3 | = | +0 |
| +1.4 | Quarterfinal | CHINA WFL | 12 | 2♣ | ♥J | +1 | +0 |
| +1.4 | Quarterfinal | CHINA WFL | 23 | 3♦ | ♣K | +1 | +0 |
| +1.3 | Semifinal | USA JENG | 17 | 2♣ | ♠Q | +1 | +7 |
| +1.3 | Final | CHINA XNWY | 2 | 3NT | ♠3 | +2 | +1 |
| +1.3 | Final | CHINA XNWY | 13 | 3NT | ♠7 | = | +13 |
| +1.1 | Quarterfinal | CHINA WFL | 31 | 2♥ | ♦K | -1 | +7 |
| +1.0 | Final | CHINA XNWY | 6 | 3NT | ♥2 | +2 | +0 |
| +1.0 | Final | CHINA XNWY | 11 | 4♥ | ♠9 | -2 | -11 |
| +0.3 | Quarterfinal | CHINA WFL | 9 | 2♠ | ♦5 | +1 | +0 |
| +0.3 | Quarterfinal | CHINA WFL | 15 | 4♠ | ♣2 | = | +0 |
| +0.3 | Quarterfinal | CHINA WFL | 27 | 4♥ | ♦3 | +1 | +0 |
| +0.1 | Quarterfinal | CHINA WFL | 11 | 3♠ | ♣A | = | +4 |
| +0.0 | Quarterfinal | CHINA WFL | 19 | 4♠ | ♦2 | +1 | -11 |
| +0.0 | Quarterfinal | CHINA WFL | 24 | 2♠ | ♣K | +1 | +0 |
| -0.0 | Semifinal | USA JENG | 27 | 4♠ | ♥6 | = | +0 |
| -0.0 | Semifinal | USA JENG | 28 | 6♥ | ♠3 | = | +0 |
| -0.0 | Semifinal | USA JENG | 30 | 4♥ | ♦9 | +1 | -1 |
| -0.0 | Final | CHINA XNWY | 3 | 4♥ | ♣K | = | +0 |
| -0.0 | Final | CHINA XNWY | 4 | 4♠ | ♦5 | = | +0 |
| -0.0 | Final | CHINA XNWY | 9 | 3NT | ♦3 | +1 | -1 |
| -0.1 | Quarterfinal | CHINA WFL | 1 | 3♦ | ♠2 | -1 | +5 |
| -0.3 | Quarterfinal | CHINA WFL | 3 | 3NT | ♣7 | +1 | -1 |
| -0.6 | Quarterfinal | CHINA WFL | 2 | 3NT | ♦2 | -1 | -6 |
| -0.7 | Semifinal | USA JENG | 18 | 4♠ | ♠2 | -2 | +1 |
| -1.0 | Quarterfinal | CHINA WFL | 10 | 5♣ | ♠A | -2 | -2 |
| -1.0 | Quarterfinal | CHINA WFL | 28 | 3NT | ♣10 | = | +1 |
| -1.4 | Quarterfinal | CHINA WFL | 14 | 4♠ | ♥9 | +2 | +14 |
| -1.7 | Quarterfinal | CHINA WFL | 5 | 3NT | ♥9 | = | +0 |
| -1.7 | Quarterfinal | CHINA WFL | 16 | 2♠ | ♦6 | +2 | -1 |
| -3.0 | Final | CHINA XNWY | 8 | 1NT | ♣2 | = | -5 |
| -3.1 | Quarterfinal | CHINA WFL | 20 | 2♠ | ♣K | = | -6 |
| -3.3 | Final | CHINA XNWY | 16 | 4♥ | ♦3 | -1 | -5 |
| -3.7 | Quarterfinal | CHINA WFL | 26 | 2NT | ♠Q | -1 | -11 |
| -4.3 | Semifinal | USA JENG | 21 | 4♠ | ♣5 | +2 | +12 |
| -4.3 | Semifinal | USA JENG | 26 | 4♥ | ♠K | +3 | -2 |
| -4.4 | Quarterfinal | CHINA WFL | 21 | 1NT | ♥4 | -1 | -5 |
| -4.6 | Quarterfinal | CHINA WFL | 29 | 3NT | ♠3 | = | -10 |
| -5.7 | Semifinal | USA JENG | 23 | 5♠x | ♦A | = | -2 |
| -6.0 | Semifinal | USA JENG | 29 | 1NT | ♠Q | +1 | -6 |
| -6.3 | Semifinal | USA JENG | 19 | 4♥ | ♦8 | -2 | -7 |
| -6.3 | Semifinal | USA JENG | 25 | 2♠ | ♣A | -1 | -2 |
| -8.0 | Semifinal | USA JENG | 22 | 3♠ | ♦4 | +1 | -12 |
| -9.7 | Final | CHINA XNWY | 14 | 4♠ | ♣4 | -2 | -11 |
| -10.4 | Quarterfinal | CHINA WFL | 6 | 4♥ | ♦A | = | -13 |