ZHANG Yalan · YBT
vs par split: bidding +0.50 · play +0.30
Strength of schedule: opponents averaged -0.38/bd (an easy draw) → opponent-adjusted +0.53/bd
Card play — on target: opening leads 87.5% #2 of 30 · declarer play 70.6% #26 of 30 · defence 73.5% #30 of 30
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 75.0% (4) | 91.7% (12) |
| Declarer play | 66.7% (6) | 72.7% (11) |
| Defence | 64.3% (14) | 80.0% (20) |
Opening leads by suit led: ♠ 100.0% (3) · ♥ 71.4% (7) · ♦ 100.0% (4) · ♣ 100.0% (2)
vs par by strain: NT +0.12 (24) · a suit +1.15 (46)
vs par by level: part-score -0.51 (35) · game +0.77 (30) · slam +10.20 (5)
By role: declaring +0.69/bd (-0.83 vs par · 36) · defending +1.14/bd (+2.53 vs par · 34)
By vulnerability: vulnerable +0.71/bd (-0.09 vs par · 35) · not vulnerable +1.11/bd (+1.69 vs par · 35)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round of 32 | C.Yeh | C.Dong – J.Ma | Open | 14 | +29.2 | +2.09 | +2.71 |
| Round of 16 | K.Cheng | H.Bertens – C.Willenken | Open | 14 | +23.3 | +1.66 | +1.57 |
| Round of 16 | J.Shih | C.Willenken – H.Bertens | Open | 14 | -1.7 | -0.12 | +1.21 |
| Quarterfinal | C.Yeh | S.Wu – S.Shen | Closed | 14 | +9.6 | +0.69 | -1.50 |
| Quarterfinal | J.Shih | G.Xin – H.Jiang | Open | 14 | +3.1 | +0.22 | +0.00 |
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 |
|---|---|---|---|---|---|---|---|
| +14.1 | Round of 32 | CRE8IVE | 3 | 6NT | ♣10 | -1 | +20 |
| +12.1 | Quarterfinal | SAN CHEN FUND | 7 | 3NT | ♣3 | +2 | +2 |
| +11.7 | Round of 32 | CRE8IVE | 7 | 6♣ | ♦4 | -2 | +13 |
| +10.9 | Round of 16 | USA 2 Mixed | 3 | 3♥x | ♣A | = | +12 |
| +9.9 | Quarterfinal | SAN CHEN FUND | 1 | 3♠ | ♥3 | -2 | +13 |
| +9.4 | Quarterfinal | SAN CHEN FUND | 3 | 3NT | ♥4 | = | +0 |
| +9.1 | Round of 32 | CRE8IVE | 2 | 5♥x | ♦2 | -3 | -4 |
| +8.2 | Round of 16 | USA 2 Mixed | 19 | 6♣ | ♠2 | -1 | +10 |
| +7.0 | Round of 32 | CRE8IVE | 13 | 3NT | ♦6 | -3 | +9 |
| +6.3 | Quarterfinal | SAN CHEN FUND | 28 | 2♠x | ♣8 | -1 | +2 |
| +6.0 | Round of 16 | USA 2 Mixed | 24 | 4♥ | ♣5 | -1 | +10 |
| +5.7 | Round of 16 | USA 2 Mixed | 13 | 6♥ | ♠2 | = | +8 |
| +5.4 | Quarterfinal | SAN CHEN FUND | 18 | 4♥ | ♥4 | = | +11 |
| +4.7 | Round of 16 | USA 2 Mixed | 25 | 4♠ | ♣3 | = | +0 |
| +4.6 | Round of 16 | USA 2 Mixed | 15 | 3NT | ♦Q | -1 | +13 |
| +4.4 | Round of 16 | USA 2 Mixed | 12 | 4♠ | ♥K | -2 | +5 |
| +4.0 | Round of 16 | USA 2 Mixed | 7 | 3♠ | ♥K | = | +0 |
| +3.6 | Round of 32 | CRE8IVE | 1 | 4♠x | ♥8 | -2 | +4 |
| +3.6 | Round of 16 | USA 2 Mixed | 5 | 3♦ | ♣8 | = | +5 |
| +3.6 | Quarterfinal | SAN CHEN FUND | 9 | 2♠ | ♠A | = | -1 |
| +3.0 | Quarterfinal | SAN CHEN FUND | 24 | 3♣ | ♦6 | -2 | +0 |
| +1.8 | Round of 16 | USA 2 Mixed | 22 | 2♠ | ♦Q | = | +5 |
| +1.7 | Quarterfinal | SAN CHEN FUND | 16 | 5♠ | ♥K | = | +0 |
| +1.1 | Round of 16 | USA 2 Mixed | 11 | 4♠ | ♦J | +1 | +0 |
| +1.0 | Quarterfinal | SAN CHEN FUND | 19 | 1NT | ♣7 | -1 | -3 |
| +0.9 | Round of 16 | USA 2 Mixed | 9 | 1NT | ♠7 | +1 | +1 |
| +0.9 | Round of 16 | USA 2 Mixed | 14 | 4♥ | ♠Q | +2 | -8 |
| +0.9 | Quarterfinal | SAN CHEN FUND | 27 | 4♠ | ♦J | +1 | +0 |
| +0.7 | Round of 16 | USA 2 Mixed | 20 | 1NT | ♥A | +1 | +0 |
| +0.6 | Quarterfinal | SAN CHEN FUND | 26 | 3♣ | ♥A | +1 | +0 |
| +0.4 | Quarterfinal | SAN CHEN FUND | 2 | 1NT | ♦6 | -1 | -1 |
| +0.3 | Round of 16 | USA 2 Mixed | 6 | 1NT | ♥Q | +1 | +1 |
| +0.1 | Round of 16 | USA 2 Mixed | 28 | 3♠ | ♦Q | = | +0 |
| +0.0 | Round of 32 | CRE8IVE | 4 | 1NT | ♠3 | = | -5 |
| -0.0 | Round of 32 | CRE8IVE | 5 | 4♠ | ♦10 | = | +0 |
| +0.0 | Quarterfinal | SAN CHEN FUND | 8 | 4♠x | ♥10 | -2 | +5 |
| -0.3 | Round of 16 | USA 2 Mixed | 4 | 4♠ | ♦Q | = | +3 |
| -0.3 | Quarterfinal | SAN CHEN FUND | 13 | 3NT | ♦3 | +2 | -13 |
| -0.4 | Quarterfinal | SAN CHEN FUND | 6 | 2NT | ♠7 | = | -1 |
| -0.6 | Round of 16 | USA 2 Mixed | 8 | 4♠ | ♣2 | +1 | +0 |
| -0.6 | Quarterfinal | SAN CHEN FUND | 17 | 2♥x | ♠9 | -2 | +3 |
| -0.7 | Round of 16 | USA 2 Mixed | 10 | 1NT | ♥6 | +1 | +0 |
| -0.7 | Round of 16 | USA 2 Mixed | 23 | 2♦ | ♥10 | +1 | +1 |
| -0.9 | Quarterfinal | SAN CHEN FUND | 11 | 3NT | ♦3 | = | -2 |
| -1.0 | Quarterfinal | SAN CHEN FUND | 14 | 2♥ | ♠3 | +1 | -1 |
| -1.1 | Quarterfinal | SAN CHEN FUND | 25 | 3NT | ♣J | +2 | +10 |
| -1.2 | Round of 32 | CRE8IVE | 12 | 3♦ | ♥5 | = | +0 |
| -1.3 | Round of 32 | CRE8IVE | 8 | 4♠ | ♥5 | +2 | +11 |
| -1.3 | Round of 16 | USA 2 Mixed | 17 | 2♠ | ♥10 | -4 | -2 |
| -1.6 | Quarterfinal | SAN CHEN FUND | 21 | 2NT | ♠K | -1 | -10 |
| -1.7 | Round of 32 | CRE8IVE | 11 | 6♠ | ♠2 | = | +0 |
| -2.2 | Round of 32 | CRE8IVE | 9 | 3♠ | ♥6 | = | -1 |
| -2.4 | Round of 32 | CRE8IVE | 14 | 3NT | ♥3 | +2 | -1 |
| -2.4 | Round of 16 | USA 2 Mixed | 2 | 2♥ | ♥2 | = | +0 |
| -2.4 | Quarterfinal | SAN CHEN FUND | 15 | 3NT | ♠5 | = | +1 |
| -2.4 | Quarterfinal | SAN CHEN FUND | 20 | 3♠ | ♣K | -1 | -12 |
| -2.7 | Quarterfinal | SAN CHEN FUND | 23 | 1NT | ♦10 | +2 | +0 |
| -3.0 | Round of 32 | CRE8IVE | 10 | 1NT | ♥A | -2 | -3 |
| -3.1 | Round of 16 | USA 2 Mixed | 18 | 3NT | ♥3 | +2 | -2 |
| -3.3 | Quarterfinal | SAN CHEN FUND | 5 | 2♠ | ♦A | -1 | +0 |
| -3.5 | Round of 16 | USA 2 Mixed | 27 | 3♣ | ♥5 | = | +0 |
| -3.8 | Round of 16 | USA 2 Mixed | 21 | 5♣ | ♣9 | -2 | -5 |
| -3.9 | Quarterfinal | SAN CHEN FUND | 10 | 1♠ | ♦Q | +1 | -1 |
| -4.5 | Round of 32 | CRE8IVE | 6 | 3♠ | ♣3 | -1 | -5 |
| -4.5 | Round of 16 | USA 2 Mixed | 1 | 4♥x | ♠A | -2 | -5 |
| -5.0 | Quarterfinal | SAN CHEN FUND | 22 | 4♠ | ♥A | +1 | -2 |
| -6.5 | Round of 16 | USA 2 Mixed | 26 | 2NT | ♦2 | -4 | -7 |
| -7.4 | Quarterfinal | SAN CHEN FUND | 12 | 5♣ | ♥A | +1 | -13 |
| -8.6 | Quarterfinal | SAN CHEN FUND | 4 | 2♠ | ♥2 | -2 | -8 |
| -8.9 | Round of 16 | USA 2 Mixed | 16 | 3NT | ♠9 | -1 | -6 |