ZHAO Chen · ZHAO
vs par split: bidding -0.94 · play +0.94
Strength of schedule: opponents averaged +0.12/bd (a tough draw) → opponent-adjusted -0.18/bd
Card play — on target: opening leads 86.4% #68 of 476 · declarer play 61.1% #447 of 478 · defence 92.9% #62 of 478
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 75.0% (8) | 92.9% (14) |
| Declarer play | 83.3% (6) | 50.0% (12) |
| Defence | 100.0% (17) | 88.0% (25) |
Opening leads by suit led: ♠ 83.3% (6) · ♥ 85.7% (7) · ♦ 100.0% (3) · ♣ 83.3% (6)
vs par by strain: NT +0.73 (33) · a suit -0.51 (47)
vs par by level: part-score +0.47 (34) · game -0.68 (40) · slam +1.83 (6)
By role: declaring -0.07/bd (-1.79 vs par · 38) · defending -0.52/bd (+1.62 vs par · 42)
By vulnerability: vulnerable +0.03/bd (+0.50 vs par · 40) · not vulnerable -0.64/bd (-0.50 vs par · 40)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 2 | J.Liu | N.Hassan – B.Amin | Closed | 10 | -2.5 | -0.25 | -0.20 |
| Round 3 | J.Liu | E.Muzzio – H.Camberos | Closed | 10 | -1.9 | -0.19 | +0.20 |
| Round 4 | J.Liu | D.Lindop – D.Baxter | Open | 10 | -2.7 | -0.27 | +0.10 |
| Round 5 | J.Liu | T.Sprinkhuizen – G.Mendes De Leon | Open | 10 | +1.5 | +0.15 | +1.20 |
| Round 7 | J.Liu | J.Shi – T.Yang | Open | 10 | -2.5 | -0.25 | -2.30 |
| Round 8 | J.Liu | T.Sadek – W.El Ahmady | Closed | 10 | +2.9 | +0.29 | +2.20 |
| Round 9 | J.Liu | A.Wasik – A.Knap | Closed | 10 | -20.1 | -2.01 | -2.90 |
| Round 10 | J.Liu | A.Farstad – L.Johansen | Closed | 10 | +1.0 | +0.10 | +1.70 |
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 |
|---|---|---|---|---|---|---|---|
| +12.1 | Round 5 | NETHERLANDS JUNIORS | 21 | 6♣ | ♥A | -1 | +14 |
| +9.2 | Round 2 | MOAZZEM HUSSAIN | 19 | 4♠x | ♣J | -2 | +15 |
| +8.0 | Round 4 | ODDY | 17 | 4♥ | ♦J | -1 | +10 |
| +6.8 | Round 10 | VICKY | 26 | 1NT | ♥10 | +1 | +10 |
| +5.4 | Round 8 | STRUL | 7 | 3NT | ♣J | -1 | +12 |
| +5.1 | Round 4 | ODDY | 13 | 1NT | ♥A | -2 | +8 |
| +4.3 | Round 3 | ARGENTINA | 4 | 2♦ | ♥A | = | +5 |
| +4.1 | Round 8 | STRUL | 3 | 3NT | ♦10 | -2 | +13 |
| +3.9 | Round 10 | VICKY | 22 | 2♥ | ♠Q | +2 | +10 |
| +3.8 | Round 10 | VICKY | 30 | 1NT | ♣2 | -2 | +5 |
| +3.6 | Round 8 | STRUL | 5 | 3NT | ♥K | +3 | +1 |
| +3.3 | Round 4 | ODDY | 12 | 3♠ | ♣3 | = | +1 |
| +3.1 | Round 8 | STRUL | 4 | 4♥ | ♠10 | -1 | +6 |
| +2.9 | Round 3 | ARGENTINA | 3 | 2♦ | ♠9 | +1 | +6 |
| +2.6 | Round 7 | FEIXIANG | 14 | 5♥x | ♠10 | -1 | -5 |
| +2.4 | Round 7 | FEIXIANG | 16 | 6♠ | ♦6 | +1 | -11 |
| +2.3 | Round 5 | NETHERLANDS JUNIORS | 28 | 2NT | ♠9 | = | +1 |
| +1.9 | Round 9 | ERA | 11 | 3NT | ♣Q | = | -1 |
| +1.8 | Round 7 | FEIXIANG | 17 | 2♥ | ♣J | = | +0 |
| +1.4 | Round 4 | ODDY | 16 | 1NT | ♣3 | +1 | +0 |
| +1.4 | Round 5 | NETHERLANDS JUNIORS | 22 | 2♠ | ♥3 | +1 | +1 |
| +1.4 | Round 8 | STRUL | 6 | 3NT | ♠8 | +1 | +1 |
| +1.4 | Round 9 | ERA | 12 | 6NT | ♠4 | = | +0 |
| +1.3 | Round 7 | FEIXIANG | 15 | 4♥ | ♦6 | = | +0 |
| +1.0 | Round 2 | MOAZZEM HUSSAIN | 12 | 2♠ | ♥A | +1 | +0 |
| +0.9 | Round 3 | ARGENTINA | 1 | 1NT | ♠5 | = | -1 |
| +0.9 | Round 3 | ARGENTINA | 8 | 2♦ | ♦2 | -1 | -2 |
| +0.8 | Round 2 | MOAZZEM HUSSAIN | 14 | 3♣ | ♥5 | -1 | +4 |
| +0.8 | Round 5 | NETHERLANDS JUNIORS | 29 | 4♠ | ♥K | +1 | +0 |
| +0.8 | Round 10 | VICKY | 25 | 3NT | ♥J | +2 | +0 |
| +0.6 | Round 5 | NETHERLANDS JUNIORS | 25 | 3NT | ♥5 | +2 | +1 |
| +0.5 | Round 7 | FEIXIANG | 13 | 6♠ | ♦7 | +1 | +8 |
| +0.5 | Round 10 | VICKY | 29 | 3NT | ♥4 | +1 | +0 |
| +0.3 | Round 7 | FEIXIANG | 12 | 1NT | ♥6 | +1 | +0 |
| +0.2 | Round 7 | FEIXIANG | 20 | 2♠ | ♦A | = | +1 |
| +0.1 | Round 2 | MOAZZEM HUSSAIN | 18 | 3NT | ♠Q | +1 | +0 |
| +0.0 | Round 3 | ARGENTINA | 9 | 3NT | ♥9 | = | +1 |
| +0.0 | Round 5 | NETHERLANDS JUNIORS | 26 | 2♠ | ♦J | = | -1 |
| -0.1 | Round 3 | ARGENTINA | 7 | 3NT | ♣2 | +1 | +0 |
| -0.1 | Round 3 | ARGENTINA | 10 | 4♥ | ♣Q | -2 | +8 |
| -0.4 | Round 9 | ERA | 19 | 1NT | ♥4 | +1 | +0 |
| -0.7 | Round 2 | MOAZZEM HUSSAIN | 13 | 4♥ | ♦J | +1 | +0 |
| -0.7 | Round 8 | STRUL | 9 | 2♠ | ♥2 | +1 | +0 |
| -0.9 | Round 9 | ERA | 20 | 3NT | ♥4 | +1 | -13 |
| -1.0 | Round 4 | ODDY | 18 | 2♥ | ♣6 | +1 | -1 |
| -1.0 | Round 5 | NETHERLANDS JUNIORS | 30 | 4♠ | ♦3 | +1 | -1 |
| -1.2 | Round 8 | STRUL | 2 | 1NT | ♥6 | +2 | +6 |
| -1.2 | Round 10 | VICKY | 24 | 6NT | ♠10 | = | +0 |
| -1.3 | Round 10 | VICKY | 23 | 5♦x | ♣A | -1 | -2 |
| -1.5 | Round 2 | MOAZZEM HUSSAIN | 16 | 4♠ | ♦A | +1 | -11 |
| -1.5 | Round 7 | FEIXIANG | 18 | 3NT | ♥4 | +2 | +0 |
| -1.6 | Round 5 | NETHERLANDS JUNIORS | 27 | 1NT | ♣10 | -1 | +3 |
| -1.6 | Round 9 | ERA | 15 | 4♠ | ♣5 | +1 | +0 |
| -1.7 | Round 2 | MOAZZEM HUSSAIN | 20 | 2♦ | ♥A | +1 | +0 |
| -1.8 | Round 2 | MOAZZEM HUSSAIN | 17 | 3NT | ♠7 | +1 | +0 |
| -1.8 | Round 9 | ERA | 13 | 5♠ | ♣9 | = | +0 |
| -1.8 | Round 10 | VICKY | 21 | 3NT | ♣2 | +1 | -1 |
| -2.0 | Round 7 | FEIXIANG | 11 | 2NT | ♥8 | -1 | -5 |
| -2.8 | Round 9 | ERA | 14 | 2♠ | ♦9 | +1 | +0 |
| -2.9 | Round 5 | NETHERLANDS JUNIORS | 24 | 6♥ | ♠9 | = | +0 |
| -3.0 | Round 2 | MOAZZEM HUSSAIN | 15 | 4♥ | ♣6 | = | -6 |
| -3.0 | Round 9 | ERA | 17 | 4♥ | ♠4 | +1 | +0 |
| -3.1 | Round 4 | ODDY | 20 | 1NT | ♣A | = | +0 |
| -3.2 | Round 8 | STRUL | 10 | 1NT | ♥2 | = | -5 |
| -3.3 | Round 4 | ODDY | 15 | 5♦ | ♠2 | +1 | -1 |
| -3.4 | Round 3 | ARGENTINA | 6 | 2NT | ♣4 | +1 | -1 |
| -3.5 | Round 3 | ARGENTINA | 5 | 3♥ | ♦K | -1 | -5 |
| -3.5 | Round 9 | ERA | 18 | 3♠ | ♥4 | -1 | -6 |
| -3.6 | Round 10 | VICKY | 28 | 2♠ | ♥A | -1 | -5 |
| -3.8 | Round 3 | ARGENTINA | 2 | 4♠ | ♣K | -1 | -9 |
| -4.0 | Round 4 | ODDY | 14 | 4♠ | ♣2 | +1 | -2 |
| -4.0 | Round 4 | ODDY | 19 | 4♥ | ♠A | -1 | -5 |
| -4.4 | Round 8 | STRUL | 1 | 3NT | ♠8 | +1 | -7 |
| -4.9 | Round 2 | MOAZZEM HUSSAIN | 11 | 1NTx | ♥A | +1 | -4 |
| -5.1 | Round 4 | ODDY | 11 | 3♦ | ♣A | -1 | -9 |
| -5.2 | Round 8 | STRUL | 8 | 4♠ | ♠5 | -1 | -5 |
| -6.9 | Round 10 | VICKY | 27 | 4♥ | ♥4 | = | +0 |
| -8.1 | Round 7 | FEIXIANG | 19 | 4♠ | ♠6 | -2 | -11 |
| -9.4 | Round 9 | ERA | 16 | 4♥x | ♠A | +2 | -9 |
| -10.2 | Round 5 | NETHERLANDS JUNIORS | 23 | 5♣x | ♦K | = | -6 |