LIU Jun · CHINA OPEN 2
vs par split: bidding -0.74 · play +0.14
Strength of schedule: opponents averaged +0.31/bd (a tough draw) → opponent-adjusted +0.40/bd
Card play — on target: opening leads 81.2% #132 of 476 · declarer play 88.2% #55 of 478 · defence 82.9% #326 of 478
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 50.0% (2) | 85.7% (14) |
| Declarer play | 80.0% (5) | 91.7% (12) |
| Defence | 90.0% (10) | 80.0% (25) |
Opening leads by suit led: ♠ 66.7% (3) · ♥ 71.4% (7) · ♦ 100.0% (2) · ♣ 100.0% (4)
vs par by strain: NT -0.14 (21) · a suit -0.80 (49)
vs par by level: part-score -0.44 (32) · game -0.93 (30) · slam +0.00 (8)
By role: declaring +0.70/bd (-1.54 vs par · 35) · defending -0.53/bd (+0.34 vs par · 35)
By vulnerability: vulnerable -0.32/bd (-1.11 vs par · 35) · not vulnerable +0.49/bd (-0.09 vs par · 35)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | W.Zhang | C.Tuncok – J.Sigurjonsson | Open | 10 | +22.2 | +2.22 | -0.10 |
| Round 2 | W.Zhang | O.Rimstedt – M.Rimstedt | Closed | 10 | -11.4 | -1.14 | -0.50 |
| Round 4 | W.Zhang | A.Wasik – A.Knap | Open | 10 | -20.5 | -2.05 | -1.60 |
| Round 6 | W.Zhang | S.Bi – W.He | Closed | 10 | +10.1 | +1.01 | -1.60 |
| Round 7 | W.Zhang | J.Hackett – J.Hackett | Closed | 10 | -23.0 | -2.30 | -4.10 |
| Round 9 | W.Zhang | J.Diamond – B.Platnick | Open | 10 | +10.2 | +1.02 | +0.30 |
| Round 10 | W.Zhang | T.Sprinkhuizen – G.Mendes De Leon | Open | 10 | +18.4 | +1.84 | +3.40 |
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 |
|---|---|---|---|---|---|---|---|
| +10.8 | Round 1 | COBRA KHAN | 4 | 6♣ | ♥6 | +1 | +7 |
| +9.1 | Round 2 | BERTHEAU | 16 | 6♠ | ♦A | = | +0 |
| +8.7 | Round 10 | NETHERLANDS JUNIORS | 22 | 4♥ | ♣3 | -1 | +13 |
| +7.0 | Round 10 | NETHERLANDS JUNIORS | 23 | 5♣x | ♠J | -1 | +8 |
| +6.9 | Round 10 | NETHERLANDS JUNIORS | 26 | 2♠ | ♥10 | = | +10 |
| +5.9 | Round 1 | COBRA KHAN | 6 | 1NT | ♦7 | -4 | +10 |
| +5.8 | Round 1 | COBRA KHAN | 8 | 4♠x | ♥K | -3 | +2 |
| +4.8 | Round 6 | CRE8TIVE | 10 | 1NT | ♥7 | +1 | +0 |
| +4.7 | Round 10 | NETHERLANDS JUNIORS | 27 | 4♥ | ♦Q | -2 | +11 |
| +3.8 | Round 4 | ERA | 11 | 4♠ | ♦A | = | +0 |
| +3.7 | Round 9 | DIAMOND | 16 | 6♣x | ♦A | -3 | +7 |
| +3.6 | Round 9 | DIAMOND | 14 | 3NT | ♥4 | -2 | +6 |
| +3.1 | Round 1 | COBRA KHAN | 3 | 6♥ | ♠10 | = | -11 |
| +2.7 | Round 6 | CRE8TIVE | 6 | 3♠ | ♣A | = | +1 |
| +2.4 | Round 1 | COBRA KHAN | 9 | 5♦ | ♥9 | = | +0 |
| +2.4 | Round 7 | MOSSOP | 16 | 6♠ | ♥Q | +1 | -11 |
| +2.3 | Round 6 | CRE8TIVE | 1 | 3♥ | ♠9 | -2 | +5 |
| +2.2 | Round 9 | DIAMOND | 18 | 3♠ | ♥3 | = | +0 |
| +2.0 | Round 6 | CRE8TIVE | 8 | 1NT | ♥K | = | +0 |
| +2.0 | Round 6 | CRE8TIVE | 9 | 2♣ | ♠Q | -1 | +0 |
| +1.9 | Round 6 | CRE8TIVE | 4 | 3♥ | ♦10 | -2 | -9 |
| +1.9 | Round 9 | DIAMOND | 11 | 3NT | ♠9 | = | -1 |
| +1.8 | Round 9 | DIAMOND | 19 | 2♥ | ♠10 | -2 | +3 |
| +1.6 | Round 4 | ERA | 20 | 2♥ | ♦Q | = | +5 |
| +1.5 | Round 2 | BERTHEAU | 11 | 1NT | ♠9 | -1 | +2 |
| +1.4 | Round 9 | DIAMOND | 12 | 6NT | ♠4 | = | +0 |
| +1.1 | Round 9 | DIAMOND | 20 | 3NT | ♥5 | +3 | -13 |
| +0.7 | Round 6 | CRE8TIVE | 7 | 3♣ | ♣J | +1 | +0 |
| +0.4 | Round 1 | COBRA KHAN | 10 | 4♥ | ♠3 | +1 | +0 |
| +0.4 | Round 4 | ERA | 16 | 1NT | ♥5 | -1 | +0 |
| +0.3 | Round 1 | COBRA KHAN | 1 | 2♦ | ♣6 | = | +2 |
| +0.2 | Round 7 | MOSSOP | 20 | 1NT | ♦3 | -1 | +1 |
| +0.1 | Round 2 | BERTHEAU | 18 | 3NT | ♠Q | +1 | +0 |
| +0.0 | Round 1 | COBRA KHAN | 5 | 2♦ | ♦8 | -1 | -5 |
| +0.0 | Round 2 | BERTHEAU | 12 | 2♥ | ♦3 | = | -1 |
| +0.0 | Round 4 | ERA | 18 | 2♥ | ♣6 | = | +0 |
| -0.2 | Round 6 | CRE8TIVE | 5 | 3♠ | ♥10 | -1 | -2 |
| -0.2 | Round 10 | NETHERLANDS JUNIORS | 25 | 3NT | ♥J | +1 | -1 |
| -0.4 | Round 7 | MOSSOP | 13 | 6♠ | ♣10 | = | +8 |
| -0.5 | Round 7 | MOSSOP | 18 | 3NT | ♥4 | +1 | +1 |
| -0.6 | Round 10 | NETHERLANDS JUNIORS | 29 | 5♦ | ♣3 | = | -1 |
| -0.7 | Round 2 | BERTHEAU | 13 | 4♥ | ♦J | +1 | +0 |
| -0.9 | Round 10 | NETHERLANDS JUNIORS | 21 | 3NT | ♣2 | = | +0 |
| -1.2 | Round 10 | NETHERLANDS JUNIORS | 24 | 6NT | ♠J | = | +0 |
| -1.6 | Round 9 | DIAMOND | 15 | 4♠ | ♥K | +1 | +0 |
| -1.7 | Round 2 | BERTHEAU | 20 | 2♠ | ♥A | = | +0 |
| -1.8 | Round 2 | BERTHEAU | 17 | 3NT | ♠Q | +1 | +0 |
| -1.8 | Round 6 | CRE8TIVE | 2 | 4♠x | ♥3 | -2 | -5 |
| -1.8 | Round 7 | MOSSOP | 12 | 2NT | ♠7 | -1 | -2 |
| -1.8 | Round 9 | DIAMOND | 13 | 3NT | ♥10 | +2 | +0 |
| -2.0 | Round 7 | MOSSOP | 11 | 2NT | ♥3 | -1 | -5 |
| -2.1 | Round 9 | DIAMOND | 17 | 4♥ | ♠3 | = | +1 |
| -2.2 | Round 7 | MOSSOP | 17 | 3♥ | ♣J | -1 | -4 |
| -2.2 | Round 7 | MOSSOP | 19 | 2♥ | ♥J | +2 | -6 |
| -2.3 | Round 4 | ERA | 13 | 2♣ | ♥A | +1 | +1 |
| -2.4 | Round 10 | NETHERLANDS JUNIORS | 30 | 2♥ | ♠A | +1 | -1 |
| -2.5 | Round 1 | COBRA KHAN | 7 | 3NT | ♠5 | = | +0 |
| -2.6 | Round 4 | ERA | 12 | 3♠ | ♣3 | -1 | -5 |
| -3.2 | Round 2 | BERTHEAU | 14 | 3♣ | ♦3 | = | +0 |
| -3.3 | Round 4 | ERA | 17 | 3NT | ♦5 | +2 | -1 |
| -3.6 | Round 10 | NETHERLANDS JUNIORS | 28 | 3♠ | ♥A | -1 | -5 |
| -3.7 | Round 2 | BERTHEAU | 15 | 5♥ | ♠A | = | -6 |
| -4.0 | Round 1 | COBRA KHAN | 2 | 4♥ | ♦10 | -1 | -6 |
| -4.0 | Round 4 | ERA | 19 | 4♥ | ♦7 | -1 | -5 |
| -4.3 | Round 6 | CRE8TIVE | 3 | 2♥ | ♣2 | = | -6 |
| -5.0 | Round 4 | ERA | 14 | 2♣x | ♦J | -3 | -3 |
| -5.9 | Round 7 | MOSSOP | 14 | 4♠ | ♥3 | +2 | -11 |
| -9.1 | Round 4 | ERA | 15 | 5♦x | ♣K | +2 | -8 |
| -10.6 | Round 7 | MOSSOP | 15 | 4♥ | ♦6 | -1 | -12 |
| -11.0 | Round 2 | BERTHEAU | 19 | 4♠ | ♦2 | = | +0 |