ZHAO Chen · ZHAO
vs par split: bidding -0.26 · play -0.02
Strength of schedule: opponents averaged +0.40/bd (a tough draw) → opponent-adjusted +0.28/bd
Card play — on target: opening leads 71.4% · declarer play 44.4% · defence 85.0%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 50.0% (2) | 80.0% (5) |
| Declarer play | · | 44.4% (9) |
| Defence | 85.7% (7) | 84.6% (13) |
Opening leads by suit led: ♥ 75.0% (4) · ♦ 100.0% (1) · ♣ 50.0% (2)
vs par by strain: NT +3.90 (10) · a suit -1.59 (32)
vs par by level: part-score -0.81 (21) · game +0.90 (20) · slam -13.00 (1)
By role: declaring -1.34/bd (-3.23 vs par · 22) · defending +1.21/bd (+2.95 vs par · 20)
By vulnerability: vulnerable -0.57/bd (+0.48 vs par · 21) · not vulnerable +0.32/bd (-1.05 vs par · 21)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round of 64 | J.Liu | G.Helgemo – T.Helness | Closed | 14 | -8.2 | -0.59 | -1.93 |
| Round of 64 | J.Liu | M.Klukowski – P.Gawrys | Closed | 14 | +6.1 | +0.44 | +0.50 |
| Round of 64 | J.Liu | G.Helgemo – T.Helness | Closed | 14 | -3.1 | -0.22 | +0.57 |
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 |
|---|---|---|---|---|---|---|---|
| +8.9 | Round of 64 | ZIMMERMANN | 56 | 3NT | ♣10 | -1 | +10 |
| +8.2 | Round of 64 | ZIMMERMANN | 34 | 4♠ | ♥2 | +1 | +1 |
| +8.1 | Round of 64 | ZIMMERMANN | 20 | 2♠x | ♥K | -2 | +8 |
| +6.2 | Round of 64 | ZIMMERMANN | 32 | 4♠ | ♥9 | -3 | +4 |
| +5.3 | Round of 64 | ZIMMERMANN | 31 | 3♦ | ♠10 | +2 | +10 |
| +4.0 | Round of 64 | ZIMMERMANN | 24 | 2NT | ♠J | -1 | +5 |
| +3.6 | Round of 64 | ZIMMERMANN | 54 | 3NT | ♥J | +3 | +1 |
| +2.9 | Round of 64 | ZIMMERMANN | 37 | 3♥ | ♠A | = | +1 |
| +2.8 | Round of 64 | ZIMMERMANN | 39 | 2♥ | ♠10 | +1 | +0 |
| +2.6 | Round of 64 | ZIMMERMANN | 36 | 2♠ | ♥10 | = | +1 |
| +2.2 | Round of 64 | ZIMMERMANN | 47 | 1NT | ♦2 | -2 | +2 |
| +2.2 | Round of 64 | ZIMMERMANN | 49 | 4♠ | ♥10 | -1 | +10 |
| +1.8 | Round of 64 | ZIMMERMANN | 35 | 2♠ | ♥5 | = | +6 |
| +1.4 | Round of 64 | ZIMMERMANN | 28 | 3NT | ♠6 | -1 | +10 |
| +1.4 | Round of 64 | ZIMMERMANN | 50 | 2♥ | ♣10 | = | +5 |
| +0.9 | Round of 64 | ZIMMERMANN | 25 | 2♥ | ♦K | +1 | +0 |
| +0.9 | Round of 64 | ZIMMERMANN | 40 | 4♠ | ♥10 | +2 | +11 |
| +0.5 | Round of 64 | ZIMMERMANN | 42 | 2♠ | ♦4 | = | -1 |
| +0.3 | Round of 64 | ZIMMERMANN | 44 | 4♥ | ♦3 | = | -3 |
| +0.2 | Round of 64 | ZIMMERMANN | 53 | 3NT | ♠3 | +1 | +0 |
| -0.1 | Round of 64 | ZIMMERMANN | 18 | 1NT | ♣Q | +1 | +1 |
| -0.1 | Round of 64 | ZIMMERMANN | 26 | 4♠ | ♥5 | +1 | +0 |
| -0.1 | Round of 64 | ZIMMERMANN | 38 | 4♥ | ♣J | +1 | +0 |
| -0.3 | Round of 64 | ZIMMERMANN | 27 | 3♠ | ♣A | -1 | -6 |
| -0.4 | Round of 64 | ZIMMERMANN | 19 | 4♠ | ♥K | +1 | +0 |
| -0.6 | Round of 64 | ZIMMERMANN | 21 | 3♥ | ♦10 | +1 | -8 |
| -0.7 | Round of 64 | ZIMMERMANN | 52 | 4♠ | ♥2 | +1 | +0 |
| -0.8 | Round of 64 | ZIMMERMANN | 45 | 1NT | ♥Q | = | -2 |
| -0.9 | Round of 64 | ZIMMERMANN | 30 | 4♠ | ♥K | +1 | -1 |
| -1.3 | Round of 64 | ZIMMERMANN | 22 | 3NT | ♦3 | +1 | +0 |
| -2.7 | Round of 64 | ZIMMERMANN | 43 | 3♥ | ♠4 | -1 | -6 |
| -2.9 | Round of 64 | ZIMMERMANN | 15 | 2♦ | ♠J | = | -5 |
| -3.2 | Round of 64 | ZIMMERMANN | 48 | 3NT | ♠5 | +3 | +12 |
| -3.4 | Round of 64 | ZIMMERMANN | 51 | 4♠ | ♦5 | = | -3 |
| -3.7 | Round of 64 | ZIMMERMANN | 17 | 5♣x | ♠A | -1 | -5 |
| -4.0 | Round of 64 | ZIMMERMANN | 41 | 2♥ | ♠7 | -3 | -4 |
| -4.7 | Round of 64 | ZIMMERMANN | 55 | 3♥ | ♦K | -1 | -10 |
| -5.5 | Round of 64 | ZIMMERMANN | 29 | 3♠ | ♥K | +1 | -6 |
| -6.0 | Round of 64 | ZIMMERMANN | 23 | 6♦ | ♣Q | -1 | -13 |
| -6.4 | Round of 64 | ZIMMERMANN | 46 | 3♥ | ♠2 | -2 | -8 |
| -7.2 | Round of 64 | ZIMMERMANN | 16 | 5♥ | ♠6 | -1 | -14 |
| -14.6 | Round of 64 | ZIMMERMANN | 33 | 5♦x | ♦3 | -4 | -15 |