CHEN Dianying · HAINAN OLD MAN
87rank
-54.1Butler · 98 bds
-0.55per board
±4.8swing
-0.21vs par /bd · #64/107
-0.48adjusted /bd
by round
vs par split: bidding -0.20 · play -0.01
Strength of schedule: opponents averaged +0.07/bd (a tough draw) → opponent-adjusted -0.48/bd
Card play — on target: opening leads 81.8% #36 of 107 · declarer play 58.8% #93 of 107 · defence 77.6% #92 of 107
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 88.9% (9) | 76.9% (13) |
| Declarer play | 100.0% (2) | 53.3% (15) |
| Defence | 81.0% (21) | 75.0% (28) |
Opening leads by suit led: ♠ 66.7% (3) · ♥ 77.8% (9) · ♦ 100.0% (5) · ♣ 80.0% (5)
vs par by strain: NT +2.14 (35) · a suit -1.52 (63)
vs par by level: part-score -0.74 (50) · game +0.67 (46) · slam -7.50 (2)
By role: declaring -0.40/bd (-2.25 vs par · 49) · defending -0.70/bd (+1.82 vs par · 49)
By vulnerability: vulnerable -1.26/bd (-2.10 vs par · 49) · not vulnerable +0.16/bd (+1.67 vs par · 49)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | L.Zhang | H.Lam – P.Ling | Closed | 7 | +12.0 | +1.71 | +3.57 |
| Round 2 | L.Zhang | H.Zhang – R.Gao | Open | 7 | +1.8 | +0.26 | -2.00 |
| Round 3 | L.Zhang | X.Shen – M.Shen | Closed | 7 | +4.9 | +0.70 | +2.29 |
| Round 6 | L.Zhang | LIAO K. T. – Y.Tan | Open | 7 | +4.8 | +0.69 | +3.86 |
| Round 7 | L.Zhang | J.Pan – X.Gu | Open | 7 | -5.9 | -0.84 | +1.00 |
| Round 8 | L.Zhang | T.Yoshida – H.Abe | Open | 7 | -2.6 | -0.37 | -0.43 |
| Round 9 | L.Zhang | D.Sacul – P.Jariyanantanetr | Closed | 7 | -22.0 | -3.14 | -5.57 |
| Round 10 | L.Zhang | M.Roche – J.Rayner | Closed | 7 | -14.9 | -2.13 | +0.29 |
| Round 13 | L.Zhang | J.Czyzowicz – D.Jacob | Open | 7 | +2.0 | +0.29 | -0.14 |
| Round 14 | L.Zhang | F.Hamilton – A.Fisher | Open | 7 | -14.5 | -2.07 | -1.29 |
| Round 15 | L.Zhang | M.Passell – M.Jacobus | Closed | 7 | -9.5 | -1.36 | -2.14 |
| Round 16 | L.Zhang | K.Christiansen – H.Lortz | Closed | 7 | +4.4 | +0.63 | -0.57 |
| Round 17 | L.Zhang | J.Holland – C.Mari | Closed | 7 | +7.4 | +1.06 | +0.71 |
| Round 20 | L.Zhang | E.Otvosi – G.Szappanos | Open | 7 | -22.0 | -3.14 | -2.57 |
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 |
|---|---|---|---|---|---|---|---|
| +13.9 | Round 1 | MASTER MINDS | 3 | 3NTx | ♠2 | -4 | +14 |
| +12.1 | Round 17 | HACKETT | 16 | 4♥ | ♣10 | -3 | +17 |
| +9.4 | Round 13 | LEWIS | 13 | 3NT | ♦4 | -4 | +11 |
| +7.4 | Round 9 | MAGIC EYES | 14 | 3NT | ♥6 | +1 | +8 |
| +7.4 | Round 17 | HACKETT | 20 | 4♥ | ♣2 | +1 | +1 |
| +6.9 | Round 15 | LYNCH | 2 | 3NT | ♥J | +2 | +0 |
| +6.4 | Round 7 | WUHAN | 16 | 1NT | ♣J | -1 | +11 |
| +6.4 | Round 16 | LORTZ | 9 | 3NT | ♦2 | -2 | +13 |
| +5.9 | Round 20 | HUNGARY | 9 | 3NT | ♥Q | -2 | +8 |
| +5.3 | Round 3 | XINYUAN SENIOR TEAM | 16 | 6♦ | ♠8 | = | -2 |
| +5.2 | Round 6 | SINGAPORE | 12 | 3NT | ♠2 | -2 | +11 |
| +5.1 | Round 3 | XINYUAN SENIOR TEAM | 20 | 2♥ | ♦A | -2 | +15 |
| +5.0 | Round 6 | SINGAPORE | 10 | 3NTx | ♠Q | -1 | +8 |
| +4.3 | Round 2 | HUBEI QIAOXIE | 8 | 1♥ | ♣10 | +2 | +1 |
| +4.1 | Round 7 | WUHAN | 15 | 3♥ | ♠K | -1 | +13 |
| +3.4 | Round 9 | MAGIC EYES | 11 | 3♠ | ♣K | +1 | +2 |
| +3.0 | Round 16 | LORTZ | 8 | 4♠ | ♦A | -1 | +4 |
| +2.7 | Round 13 | LEWIS | 11 | 4♣ | ♦A | +2 | +4 |
| +2.4 | Round 13 | LEWIS | 10 | 1♥ | ♣K | +2 | -10 |
| +2.3 | Round 2 | HUBEI QIAOXIE | 12 | 1♠ | ♣7 | -1 | +5 |
| +2.2 | Round 20 | HUNGARY | 8 | 1NT | ♥Q | = | -1 |
| +1.8 | Round 8 | IMAX | 7 | 4♠ | ♥A | -1 | +6 |
| +1.8 | Round 16 | LORTZ | 14 | 3NT | ♣J | = | +0 |
| +1.5 | Round 7 | WUHAN | 17 | 3♠ | ♦8 | +1 | +1 |
| +1.5 | Round 8 | IMAX | 4 | 2♥ | ♦3 | = | -11 |
| +1.1 | Round 1 | MASTER MINDS | 4 | 2♠ | ♣5 | = | +6 |
| +1.0 | Round 7 | WUHAN | 18 | 2NT | ♦A | -1 | +5 |
| +1.0 | Round 13 | LEWIS | 8 | 4NT | ♠7 | +1 | +1 |
| +0.9 | Round 6 | SINGAPORE | 11 | 4♠ | ♥A | -2 | -1 |
| +0.8 | Round 2 | HUBEI QIAOXIE | 9 | 3♦ | ♥7 | -2 | -5 |
| +0.8 | Round 2 | HUBEI QIAOXIE | 11 | 4♠ | ♥K | +1 | -10 |
| +0.8 | Round 3 | XINYUAN SENIOR TEAM | 18 | 1NT | ♥K | -2 | +0 |
| +0.8 | Round 6 | SINGAPORE | 13 | 2♠ | ♥A | = | +1 |
| +0.7 | Round 2 | HUBEI QIAOXIE | 13 | 4♥ | ♥J | +1 | +0 |
| +0.6 | Round 8 | IMAX | 6 | 2NT | ♥4 | = | +10 |
| +0.6 | Round 16 | LORTZ | 11 | 3♠ | ♥J | +1 | +6 |
| +0.5 | Round 1 | MASTER MINDS | 1 | 3♥ | ♣A | -1 | -4 |
| +0.5 | Round 3 | XINYUAN SENIOR TEAM | 15 | 2♠ | ♦4 | = | +0 |
| +0.5 | Round 10 | CANADA | 16 | 4♥ | ♠4 | +1 | +0 |
| +0.4 | Round 10 | CANADA | 17 | 4♠ | ♣6 | = | +11 |
| +0.2 | Round 15 | LYNCH | 5 | 5♥ | ♦3 | = | +4 |
| +0.2 | Round 16 | LORTZ | 13 | 4♥ | ♣Q | = | -13 |
| +0.1 | Round 1 | MASTER MINDS | 2 | 3NT | ♠Q | -1 | +5 |
| +0.1 | Round 9 | MAGIC EYES | 12 | 3♦ | ♣2 | -1 | -2 |
| +0.1 | Round 15 | LYNCH | 1 | 4♠ | ♥2 | +1 | +0 |
| -0.0 | Round 1 | MASTER MINDS | 5 | 1NT | ♥K | +2 | +0 |
| -0.0 | Round 3 | XINYUAN SENIOR TEAM | 17 | 2♠ | ♦7 | -1 | +3 |
| -0.0 | Round 10 | CANADA | 15 | 3♥ | ♠9 | -1 | +3 |
| +0.0 | Round 15 | LYNCH | 4 | 4♥ | ♦10 | +1 | +0 |
| +0.0 | Round 17 | HACKETT | 19 | 3NT | ♣K | +1 | +0 |
| -0.2 | Round 8 | IMAX | 2 | 1♥ | ♦Q | +4 | -10 |
| -0.3 | Round 17 | HACKETT | 18 | 2NT | ♥J | -1 | +1 |
| -0.3 | Round 20 | HUNGARY | 14 | 3NT | ♥8 | = | -2 |
| -0.5 | Round 14 | STERNBERG | 15 | 2♥ | ♣K | = | +0 |
| -0.5 | Round 15 | LYNCH | 6 | 3♠ | ♥5 | -1 | +2 |
| -0.6 | Round 14 | STERNBERG | 19 | 3♠ | ♥6 | -2 | +2 |
| -0.8 | Round 7 | WUHAN | 21 | 3♠ | ♣7 | = | +0 |
| -1.0 | Round 8 | IMAX | 5 | 2♠ | ♥A | -1 | +1 |
| -1.0 | Round 10 | CANADA | 18 | 4♥ | ♥8 | +1 | +0 |
| -1.1 | Round 14 | STERNBERG | 16 | 2♦ | ♥K | = | +2 |
| -1.1 | Round 20 | HUNGARY | 10 | 2♠ | ♦K | = | +1 |
| -1.3 | Round 13 | LEWIS | 12 | 3NT | ♦6 | +1 | +0 |
| -1.4 | Round 1 | MASTER MINDS | 6 | 2♥ | ♣5 | = | +5 |
| -1.5 | Round 6 | SINGAPORE | 14 | 4♠ | ♦A | -2 | -5 |
| -1.5 | Round 10 | CANADA | 21 | 3NT | ♠J | -1 | -5 |
| -1.6 | Round 17 | HACKETT | 21 | 3♠ | ♦2 | -2 | -2 |
| -1.7 | Round 8 | IMAX | 3 | 2♠ | ♣K | -2 | +1 |
| -2.0 | Round 2 | HUBEI QIAOXIE | 14 | 3♦ | ♣10 | -1 | -4 |
| -2.2 | Round 1 | MASTER MINDS | 7 | 3NT | ♠8 | +2 | -1 |
| -2.2 | Round 6 | SINGAPORE | 9 | 3NT | ♣6 | +1 | +12 |
| -2.2 | Round 14 | STERNBERG | 20 | 2♦ | ♦Q | -1 | -5 |
| -2.2 | Round 14 | STERNBERG | 21 | 1NT | ♣7 | = | -5 |
| -2.3 | Round 16 | LORTZ | 10 | 2♠ | ♦2 | = | -6 |
| -3.0 | Round 9 | MAGIC EYES | 8 | 1NT | ♦2 | -1 | -5 |
| -3.0 | Round 14 | STERNBERG | 17 | 2♠ | ♥6 | -3 | -2 |
| -3.1 | Round 3 | XINYUAN SENIOR TEAM | 21 | 4♠ | ♥J | +1 | -17 |
| -3.4 | Round 6 | SINGAPORE | 8 | 3NT | ♦J | = | +1 |
| -3.6 | Round 8 | IMAX | 1 | 4♠ | ♥5 | = | +0 |
| -3.7 | Round 3 | XINYUAN SENIOR TEAM | 19 | 3NT | ♠10 | +2 | +17 |
| -4.4 | Round 10 | CANADA | 19 | 1NT | ♥7 | +1 | -6 |
| -4.4 | Round 17 | HACKETT | 15 | 2NT | ♠A | -1 | -5 |
| -4.7 | Round 7 | WUHAN | 19 | 2♠ | ♣6 | = | -6 |
| -4.8 | Round 9 | MAGIC EYES | 13 | 5♠ | ♥A | = | -17 |
| -4.8 | Round 15 | LYNCH | 3 | 4♥ | ♥10 | = | -8 |
| -4.9 | Round 14 | STERNBERG | 18 | 4♥ | ♠9 | +1 | -1 |
| -5.1 | Round 2 | HUBEI QIAOXIE | 10 | 3NT | ♠10 | +2 | -1 |
| -5.3 | Round 16 | LORTZ | 12 | 1♠x | ♣K | -3 | -8 |
| -5.4 | Round 13 | LEWIS | 9 | 3♣ | ♠K | -2 | -7 |
| -5.8 | Round 17 | HACKETT | 17 | 3♦ | ♥5 | +1 | -7 |
| -6.6 | Round 20 | HUNGARY | 12 | 2♥ | ♦K | = | -12 |
| -6.8 | Round 13 | LEWIS | 14 | 4♠ | ♦2 | = | +0 |
| -8.9 | Round 10 | CANADA | 20 | 3NT | ♠8 | +1 | -1 |
| -9.6 | Round 20 | HUNGARY | 11 | 3NT | ♣Q | = | +0 |
| -10.6 | Round 9 | MAGIC EYES | 9 | 4♠ | ♥3 | = | -10 |
| -11.4 | Round 15 | LYNCH | 7 | 6♥ | ♣Q | -1 | -13 |
| -12.5 | Round 20 | HUNGARY | 13 | 3NT | ♠10 | -2 | -12 |
| -13.4 | Round 7 | WUHAN | 20 | 3NT | ♣4 | -1 | -17 |
| -14.5 | Round 9 | MAGIC EYES | 10 | 3♠x | ♣A | = | -15 |