CHEN Ji · PD TIMES
vs par split: bidding -0.30 · play +0.54
Strength of schedule: opponents averaged +0.05/bd (a tough draw) → opponent-adjusted +0.57/bd
Card play — on target: opening leads 72.2% #278 of 476 · declarer play 88.2% #55 of 478 · defence 86.2% #223 of 478
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 60.0% (5) | 76.9% (13) |
| Declarer play | 83.3% (6) | 90.9% (11) |
| Defence | 75.0% (8) | 90.5% (21) |
Opening leads by suit led: ♠ 66.7% (3) · ♥ 60.0% (5) · ♦ 75.0% (4) · ♣ 83.3% (6)
vs par by strain: NT -1.32 (19) · a suit +0.82 (51)
vs par by level: part-score +1.30 (30) · game -0.34 (35) · slam -2.00 (5)
By role: declaring +1.72/bd (-0.20 vs par · 41) · defending -1.19/bd (+0.86 vs par · 29)
By vulnerability: vulnerable +0.77/bd (+0.80 vs par · 35) · not vulnerable +0.25/bd (-0.31 vs par · 35)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | L.Dong | G.Cambournac – S.Dahan | Open | 10 | -5.5 | -0.55 | -3.50 |
| Round 2 | L.Dong | J.Shi – T.Yang | Open | 10 | +1.4 | +0.14 | +1.00 |
| Round 4 | L.Dong | J.Wilkinson – T.Mcveigh | Closed | 10 | +24.7 | +2.47 | +3.30 |
| Round 5 | L.Dong | J.Verhees – R.Van Prooijen | Closed | 10 | -9.8 | -0.98 | +0.70 |
| Round 6 | L.Dong | B.Nab – B.Drijver | Closed | 10 | +18.8 | +1.88 | -0.50 |
| Round 7 | L.Dong | J.Stamatov – D.Danailov | Open | 10 | -0.2 | -0.02 | -1.90 |
| Round 8 | L.Dong | J.Barron – A.Sontag | Closed | 10 | +6.6 | +0.66 | +2.60 |
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 |
|---|---|---|---|---|---|---|---|
| +13.7 | Round 8 | CAYNE | 2 | 4♠x | ♦A | = | +15 |
| +12.3 | Round 4 | SKY BRIDGE CLUB | 15 | 5♠x | ♦K | = | +15 |
| +9.2 | Round 6 | PDC | 4 | 5♦ | ♥K | = | +0 |
| +7.6 | Round 6 | PDC | 2 | 5♦x | ♠6 | = | +6 |
| +6.2 | Round 8 | CAYNE | 9 | 4♠ | ♥2 | = | +7 |
| +6.0 | Round 5 | TULIN | 23 | 4♠ | ♥A | -3 | +13 |
| +5.1 | Round 8 | CAYNE | 8 | 4♠ | ♠2 | = | +7 |
| +4.9 | Round 2 | FEIXIANG | 11 | 1NT | ♠9 | = | +5 |
| +4.8 | Round 6 | PDC | 10 | 1NT | ♦Q | +1 | +0 |
| +4.6 | Round 4 | SKY BRIDGE CLUB | 12 | 5♦ | ♠5 | -4 | +3 |
| +4.4 | Round 4 | SKY BRIDGE CLUB | 11 | 4♠ | ♥Q | +1 | +1 |
| +3.8 | Round 1 | MAROC | 1 | 4♠ | ♥J | -1 | +5 |
| +3.7 | Round 4 | SKY BRIDGE CLUB | 17 | 2♣ | ♥9 | +3 | +7 |
| +3.6 | Round 7 | SCHWARTZ | 19 | 4♥ | ♣9 | = | +0 |
| +3.4 | Round 2 | FEIXIANG | 20 | 2♠ | ♥A | -1 | +6 |
| +3.3 | Round 2 | FEIXIANG | 14 | 2♥ | ♣4 | +1 | +6 |
| +3.1 | Round 1 | MAROC | 3 | 6♠ | ♣J | = | -11 |
| +3.0 | Round 4 | SKY BRIDGE CLUB | 14 | 2NT | ♦2 | +1 | +6 |
| +3.0 | Round 5 | TULIN | 28 | 3♥ | ♣Q | = | +1 |
| +2.7 | Round 8 | CAYNE | 5 | 4♠ | ♥A | +1 | +0 |
| +2.4 | Round 1 | MAROC | 9 | 5♦ | ♥3 | = | +0 |
| +2.4 | Round 7 | SCHWARTZ | 16 | 6♠ | ♠4 | +1 | -11 |
| +2.3 | Round 6 | PDC | 1 | 3♦ | ♠K | = | +5 |
| +2.2 | Round 6 | PDC | 3 | 3♠ | ♠2 | = | +0 |
| +1.8 | Round 7 | SCHWARTZ | 17 | 2♥ | ♦J | = | +0 |
| +1.7 | Round 6 | PDC | 6 | 3♦ | ♥3 | = | +0 |
| +1.6 | Round 4 | SKY BRIDGE CLUB | 20 | 2♥ | ♦A | = | +5 |
| +1.4 | Round 4 | SKY BRIDGE CLUB | 16 | 1NT | ♣2 | +1 | +0 |
| +1.3 | Round 1 | MAROC | 10 | 4♥ | ♥3 | +2 | +1 |
| +1.3 | Round 7 | SCHWARTZ | 15 | 4♥ | ♠8 | = | +0 |
| +1.0 | Round 2 | FEIXIANG | 12 | 2♠ | ♦K | +1 | +0 |
| +0.9 | Round 6 | PDC | 8 | 2♥ | ♥2 | -1 | -1 |
| +0.9 | Round 8 | CAYNE | 7 | 3♦ | ♣K | +1 | +10 |
| +0.8 | Round 5 | TULIN | 29 | 3NT | ♣J | +2 | +0 |
| +0.6 | Round 5 | TULIN | 25 | 3NT | ♥5 | +2 | +1 |
| +0.5 | Round 7 | SCHWARTZ | 13 | 6♠ | ♥J | +1 | +8 |
| +0.5 | Round 8 | CAYNE | 6 | 3NT | ♠2 | = | +0 |
| +0.2 | Round 7 | SCHWARTZ | 20 | 2♠ | ♣A | = | +1 |
| +0.1 | Round 1 | MAROC | 4 | 3NT | ♥7 | +3 | -9 |
| +0.1 | Round 2 | FEIXIANG | 18 | 3NT | ♠Q | +1 | +0 |
| +0.0 | Round 1 | MAROC | 5 | 2♦ | ♠3 | -1 | -5 |
| +0.0 | Round 4 | SKY BRIDGE CLUB | 18 | 2♥ | ♣6 | = | +0 |
| -0.2 | Round 6 | PDC | 5 | 3♠ | ♣6 | -1 | -2 |
| -0.6 | Round 7 | SCHWARTZ | 12 | 2♠ | ♦10 | -2 | -1 |
| -0.7 | Round 2 | FEIXIANG | 13 | 4♥ | ♦J | +1 | +0 |
| -0.9 | Round 2 | FEIXIANG | 16 | 4♠ | ♦A | +2 | -11 |
| -1.1 | Round 5 | TULIN | 24 | 6♦ | ♣K | = | +2 |
| -1.5 | Round 7 | SCHWARTZ | 18 | 3NT | ♥10 | +2 | +0 |
| -2.0 | Round 5 | TULIN | 30 | 3NT | ♦5 | +3 | -2 |
| -2.0 | Round 7 | SCHWARTZ | 11 | 2NT | ♥7 | -1 | -5 |
| -2.3 | Round 4 | SKY BRIDGE CLUB | 13 | 3♦ | ♦3 | = | +1 |
| -2.5 | Round 1 | MAROC | 7 | 3NT | ♠4 | = | +0 |
| -2.7 | Round 2 | FEIXIANG | 17 | 3NT | ♠9 | +2 | -1 |
| -2.8 | Round 6 | PDC | 9 | 2♣ | ♣2 | = | -5 |
| -3.0 | Round 5 | TULIN | 27 | 1NT | ♦K | -2 | +1 |
| -3.2 | Round 8 | CAYNE | 3 | 4♣ | ♦2 | = | +10 |
| -3.3 | Round 2 | FEIXIANG | 19 | 2♠ | ♣J | = | +11 |
| -3.4 | Round 5 | TULIN | 22 | 2♠ | ♥3 | -1 | -5 |
| -3.6 | Round 1 | MAROC | 6 | 3NT | ♣5 | +1 | +0 |
| -3.7 | Round 2 | FEIXIANG | 15 | 5♥ | ♠A | = | -6 |
| -4.0 | Round 1 | MAROC | 2 | 4♥ | ♥9 | -1 | -6 |
| -4.0 | Round 4 | SKY BRIDGE CLUB | 19 | 4♥ | ♠3 | -1 | -5 |
| -4.2 | Round 8 | CAYNE | 10 | 2NT | ♠10 | = | -6 |
| -4.4 | Round 8 | CAYNE | 1 | 3NT | ♠8 | +1 | -7 |
| -5.0 | Round 5 | TULIN | 26 | 2♠ | ♦J | -1 | -6 |
| -5.7 | Round 5 | TULIN | 21 | 6♣ | ♥A | = | +2 |
| -5.9 | Round 7 | SCHWARTZ | 14 | 4♠ | ♥3 | +2 | -11 |
| -6.1 | Round 1 | MAROC | 8 | 5♥ | ♦K | -1 | -10 |
| -6.9 | Round 6 | PDC | 7 | 3NT | ♦6 | -2 | -8 |
| -10.7 | Round 8 | CAYNE | 4 | 4♥ | ♦5 | = | -10 |