ZHANG Yalan · YBS
vs par split: bidding +0.23 · play +0.05
Strength of schedule: opponents averaged +0.11/bd (a tough draw) → opponent-adjusted +0.26/bd
Card play — on target: opening leads 85.7% #29 of 148 · declarer play 64.3% #131 of 148 · defence 78.6% #121 of 148
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (3) | 75.0% (4) |
| Declarer play | 66.7% (3) | 63.6% (11) |
| Defence | 60.0% (5) | 88.9% (9) |
Opening leads by suit led: ♠ 100.0% (1) · ♥ 100.0% (2) · ♦ 100.0% (3) · ♣ 0.0% (1)
vs par by strain: NT -1.19 (16) · a suit +1.25 (24)
vs par by level: part-score -0.06 (17) · game +0.14 (21) · slam +4.50 (2)
By role: declaring +1.05/bd (-1.15 vs par · 26) · defending -1.49/bd (+2.93 vs par · 14)
By vulnerability: vulnerable -0.36/bd (-1.19 vs par · 21) · not vulnerable +0.73/bd (+1.90 vs par · 19)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 3 | C.Lin | R.Oshlag – P.Munafo | Closed | 10 | -5.6 | -0.56 | -2.30 |
| Round 4 | C.Lin | C.Bjaring – J.Ostberg | Closed | 10 | +22.5 | +2.25 | +1.40 |
| Round 7 | C.Lin | M.Kwiecien – K.Martens | Closed | 10 | -15.4 | -1.54 | +1.40 |
| Round 8 | C.Lin | D.Mcguire – W.Burt | Closed | 10 | +4.8 | +0.48 | +0.60 |
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 |
|---|---|---|---|---|---|---|---|
| +14.6 | Round 4 | KASLE | 15 | 5♥x | ♠K | = | +16 |
| +9.2 | Round 4 | KASLE | 16 | 4♠ | ♥3 | -2 | +12 |
| +6.0 | Round 7 | MILNER | 14 | 4♠ | ♦J | = | +11 |
| +5.2 | Round 8 | HALMAN | 30 | 3NT | ♠2 | = | +0 |
| +4.7 | Round 3 | USARUSSELL | 9 | 4♠ | ♣6 | -1 | +5 |
| +3.8 | Round 7 | MILNER | 13 | 1♠ | ♠9 | = | +5 |
| +3.2 | Round 3 | USARUSSELL | 1 | 3NT | ♣4 | +1 | +7 |
| +2.5 | Round 4 | KASLE | 11 | 3NT | ♣Q | = | -1 |
| +2.4 | Round 8 | HALMAN | 22 | 3♠ | ♥6 | -1 | +10 |
| +1.9 | Round 8 | HALMAN | 24 | 4♥ | ♠7 | +1 | +0 |
| +1.4 | Round 8 | HALMAN | 21 | 3NT | ♠6 | +2 | +2 |
| +1.4 | Round 8 | HALMAN | 26 | 2♥ | ♦Q | +1 | +0 |
| +1.0 | Round 4 | KASLE | 20 | 3NT | ♥7 | +3 | -13 |
| +0.9 | Round 3 | USARUSSELL | 2 | 1NT | ♥6 | +2 | -6 |
| +0.9 | Round 4 | KASLE | 17 | 5♣x | ♦A | -2 | +4 |
| +0.9 | Round 4 | KASLE | 18 | 2♠ | ♥7 | = | -1 |
| +0.5 | Round 3 | USARUSSELL | 5 | 5♣ | ♥5 | = | +2 |
| +0.4 | Round 8 | HALMAN | 23 | 3NT | ♦4 | +1 | +0 |
| +0.3 | Round 4 | KASLE | 12 | 6♦ | ♣A | = | -2 |
| +0.2 | Round 7 | MILNER | 11 | 4♥ | ♣A | +2 | -11 |
| +0.1 | Round 7 | MILNER | 12 | 3♦ | ♥3 | +1 | +7 |
| -0.0 | Round 3 | USARUSSELL | 6 | 3NT | ♠4 | = | +0 |
| -0.1 | Round 8 | HALMAN | 28 | 1NT | ♥K | = | -1 |
| -0.7 | Round 3 | USARUSSELL | 8 | 2NT | ♦2 | +2 | -1 |
| -1.3 | Round 4 | KASLE | 19 | 1NT | ♠A | = | -1 |
| -1.7 | Round 4 | KASLE | 14 | 2♠ | ♦9 | = | +1 |
| -1.7 | Round 8 | HALMAN | 29 | 3♣ | ♥J | -1 | -5 |
| -2.2 | Round 7 | MILNER | 15 | 2♠ | ♥2 | -1 | -5 |
| -2.2 | Round 7 | MILNER | 19 | 1NT | ♠4 | +2 | +8 |
| -2.4 | Round 7 | MILNER | 16 | 3♠ | ♦A | = | -1 |
| -2.4 | Round 8 | HALMAN | 27 | 3♣ | ♦3 | = | +0 |
| -2.5 | Round 3 | USARUSSELL | 10 | 2NT | ♠10 | -1 | +0 |
| -3.2 | Round 3 | USARUSSELL | 4 | 4♥ | ♠10 | -1 | -6 |
| -3.7 | Round 8 | HALMAN | 25 | 4♠ | ♦A | = | +0 |
| -3.9 | Round 3 | USARUSSELL | 3 | 4♠ | ♥8 | -1 | -12 |
| -3.9 | Round 4 | KASLE | 13 | 3NT | ♥7 | +3 | -1 |
| -4.3 | Round 7 | MILNER | 18 | 3NT | ♦K | +2 | +0 |
| -4.6 | Round 3 | USARUSSELL | 7 | 3NT | ♣K | -1 | -12 |
| -7.1 | Round 7 | MILNER | 20 | 2♦ | ♠2 | +3 | -11 |
| -7.3 | Round 7 | MILNER | 17 | 6♣ | ♦9 | +1 | +11 |