CHEN Yong · SHANGHAILVCHENG
151rank
+30.4Butler · 90 bds
+0.34per board
±4.0swing
+0.10vs par /bd · #254/567
+0.65adjusted /bd
by round
vs par split: bidding -0.53 · play +0.63
Strength of schedule: opponents averaged +0.32/bd (a tough draw) → opponent-adjusted +0.65/bd
Card play — on target: opening leads 94.7% #10 of 567 · declarer play 92.0% #18 of 567 · defence 92.3% #16 of 567
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (6) | 92.3% (13) |
| Declarer play | 83.3% (12) | 100.0% (13) |
| Defence | 100.0% (10) | 89.7% (29) |
Opening leads by suit led: ♠ 100.0% (3) · ♥ 100.0% (5) · ♦ 100.0% (5) · ♣ 83.3% (6)
vs par by strain: NT -0.76 (33) · a suit +0.60 (57)
vs par by level: part-score +1.06 (35) · game -0.77 (48) · slam +1.29 (7)
By role: declaring +0.24/bd (-2.14 vs par · 51) · defending +0.47/bd (+3.03 vs par · 39)
By vulnerability: vulnerable +0.48/bd (+0.35 vs par · 49) · not vulnerable +0.17/bd (-0.20 vs par · 41)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | Y.Luo | H.Wang – C.Nie | Closed | 10 | -5.8 | -0.58 | -0.40 |
| Round 3 | Y.Luo | S.Sze – W.Chiu | Closed | 10 | +15.7 | +1.57 | +0.40 |
| Round 4 | Y.Luo | T.Asbi – L.Bojoh | Closed | 10 | -2.7 | -0.27 | -0.50 |
| Round 7 | Y.Luo | H.Lasut – E.Manoppo | Closed | 10 | +3.1 | +0.31 | -3.00 |
| Round 8 | Y.Luo | J.Lall – B.Moss | Open | 10 | +9.3 | +0.93 | +1.00 |
| Round 10 | Y.Luo | P.Ravenna – M.Thoma | Closed | 10 | +5.4 | +0.54 | +2.80 |
| Round 12 | Y.Luo | H.Wu – S.Wu | Open | 10 | +12.4 | +1.24 | +2.00 |
| Round 13 | Y.Luo | M.Cichocki – P.Koluda | Closed | 10 | -3.4 | -0.34 | +1.40 |
| Round 15 | Y.Luo | C.Lorenzini – T.Bessis | Open | 10 | -3.6 | -0.36 | -2.80 |
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 |
|---|---|---|---|---|---|---|---|
| +10.5 | Round 12 | CHINA MIXED | 27 | 5♣x | ♣2 | -4 | +9 |
| +9.8 | Round 12 | CHINA MIXED | 26 | 4♥ | ♦6 | = | +10 |
| +9.5 | Round 10 | BRAZIL Mixed | 6 | 3NT | ♦Q | = | +10 |
| +8.8 | Round 3 | KONG HAN | 27 | 4♥x | ♣6 | -1 | +9 |
| +8.2 | Round 7 | INDONESIA Seniors | 7 | 2♣x | ♠2 | -2 | +9 |
| +7.1 | Round 10 | BRAZIL Mixed | 7 | 2NT | ♠2 | = | +10 |
| +6.3 | Round 15 | SHEN | 29 | 4♥ | ♠8 | = | +3 |
| +5.7 | Round 4 | INDONESIA Mixed | 4 | 3NT | ♠J | +2 | +0 |
| +5.7 | Round 8 | SIVY A | 12 | 6♣ | ♣J | = | -2 |
| +5.4 | Round 15 | SHEN | 21 | 4♥ | ♦6 | -2 | +8 |
| +4.9 | Round 1 | NEIMENGGU | 3 | 3NT | ♦9 | -2 | +6 |
| +4.7 | Round 8 | SIVY A | 16 | 2NT | ♥6 | +1 | +2 |
| +4.3 | Round 4 | INDONESIA Mixed | 10 | 3♣ | ♣8 | -1 | +5 |
| +4.3 | Round 13 | POLAND Women | 5 | 4♥ | ♠7 | = | +11 |
| +4.2 | Round 7 | INDONESIA Seniors | 9 | 3NT | ♠2 | = | -13 |
| +4.0 | Round 10 | BRAZIL Mixed | 5 | 2♠x | ♦3 | -1 | +7 |
| +3.8 | Round 1 | NEIMENGGU | 6 | 3NTx | ♦10 | -1 | +11 |
| +3.7 | Round 10 | BRAZIL Mixed | 4 | 2♠ | ♥5 | = | +6 |
| +3.6 | Round 1 | NEIMENGGU | 5 | 3NT | ♥7 | = | -1 |
| +3.6 | Round 8 | SIVY A | 20 | 3NT | ♥2 | -2 | +7 |
| +3.4 | Round 13 | POLAND Women | 10 | 2NT | ♦5 | = | +0 |
| +2.8 | Round 3 | KONG HAN | 23 | 1NT | ♣2 | = | -1 |
| +2.8 | Round 3 | KONG HAN | 28 | 4♥ | ♠Q | +1 | +0 |
| +2.2 | Round 4 | INDONESIA Mixed | 8 | 2♠ | ♦K | = | +0 |
| +2.1 | Round 3 | KONG HAN | 22 | 3NT | ♥8 | -2 | +6 |
| +2.1 | Round 3 | KONG HAN | 25 | 3♥ | ♣5 | = | +6 |
| +2.1 | Round 12 | CHINA MIXED | 23 | 2♣x | ♠Q | -1 | +2 |
| +1.9 | Round 3 | KONG HAN | 21 | 3NT | ♦9 | = | -2 |
| +1.8 | Round 13 | POLAND Women | 4 | 2♥ | ♣3 | +1 | +1 |
| +1.7 | Round 10 | BRAZIL Mixed | 1 | 1NT | ♦9 | = | +5 |
| +1.5 | Round 1 | NEIMENGGU | 2 | 4♦ | ♠9 | = | +0 |
| +1.3 | Round 12 | CHINA MIXED | 28 | 5♥ | ♣2 | +1 | -11 |
| +1.1 | Round 7 | INDONESIA Seniors | 8 | 3NT | ♣Q | +3 | -10 |
| +1.0 | Round 8 | SIVY A | 14 | 3NT | ♣7 | +1 | +1 |
| +1.0 | Round 12 | CHINA MIXED | 29 | 2♠ | ♣5 | = | +1 |
| +0.8 | Round 15 | SHEN | 24 | 3NT | ♠2 | +3 | +1 |
| +0.7 | Round 8 | SIVY A | 13 | 3♠ | ♠3 | -1 | +1 |
| +0.6 | Round 1 | NEIMENGGU | 1 | 3♠ | ♣3 | +1 | +6 |
| +0.6 | Round 4 | INDONESIA Mixed | 3 | 4♥ | ♠K | +2 | +11 |
| +0.5 | Round 1 | NEIMENGGU | 7 | 1NT | ♥4 | +1 | +0 |
| +0.5 | Round 8 | SIVY A | 19 | 2♦ | ♥Q | = | +7 |
| +0.4 | Round 4 | INDONESIA Mixed | 5 | 4♠ | ♥A | +1 | +1 |
| +0.4 | Round 7 | INDONESIA Seniors | 6 | 3NT | ♠J | -4 | +0 |
| +0.4 | Round 13 | POLAND Women | 6 | 2♦ | ♥6 | +2 | +7 |
| +0.3 | Round 3 | KONG HAN | 30 | 4♥ | ♦3 | +1 | +0 |
| +0.3 | Round 4 | INDONESIA Mixed | 1 | 4♥ | ♠K | +1 | +0 |
| +0.2 | Round 7 | INDONESIA Seniors | 1 | 3♥ | ♣9 | -1 | -2 |
| +0.2 | Round 13 | POLAND Women | 7 | 3NT | ♥K | = | -2 |
| +0.1 | Round 13 | POLAND Women | 9 | 3NT | ♠6 | +1 | -1 |
| +0.0 | Round 8 | SIVY A | 11 | 4♠ | ♥A | +1 | +0 |
| +0.0 | Round 10 | BRAZIL Mixed | 8 | 6NT | ♦4 | = | +11 |
| +0.0 | Round 12 | CHINA MIXED | 21 | 2♠ | ♠5 | +1 | +1 |
| -0.1 | Round 4 | INDONESIA Mixed | 7 | 2♠ | ♠7 | +2 | -1 |
| -0.3 | Round 3 | KONG HAN | 24 | 5♦ | ♥4 | = | -2 |
| -0.5 | Round 8 | SIVY A | 15 | 3NT | ♥8 | +1 | +0 |
| -0.5 | Round 15 | SHEN | 25 | 3NT | ♣4 | +1 | +0 |
| -0.8 | Round 7 | INDONESIA Seniors | 3 | 2♦ | ♣A | +1 | +0 |
| -0.8 | Round 15 | SHEN | 23 | 2NT | ♠10 | -1 | +0 |
| -0.9 | Round 7 | INDONESIA Seniors | 2 | 2♠ | ♣K | -1 | +1 |
| -1.1 | Round 3 | KONG HAN | 26 | 4♥ | ♠K | +2 | -13 |
| -1.3 | Round 15 | SHEN | 26 | 2♠ | ♣A | -2 | -10 |
| -1.3 | Round 15 | SHEN | 27 | 4♠ | ♥8 | -1 | -2 |
| -1.4 | Round 12 | CHINA MIXED | 30 | 2NT | ♦2 | -1 | -5 |
| -1.5 | Round 10 | BRAZIL Mixed | 9 | 1NT | ♣3 | -1 | -5 |
| -2.0 | Round 4 | INDONESIA Mixed | 6 | 2♥ | ♠7 | -2 | -3 |
| -2.4 | Round 12 | CHINA MIXED | 22 | 6♣ | ♦A | = | +2 |
| -2.4 | Round 13 | POLAND Women | 2 | 3♦ | ♥K | +1 | +9 |
| -2.5 | Round 15 | SHEN | 28 | 3NT | ♦4 | +3 | -11 |
| -2.6 | Round 12 | CHINA MIXED | 25 | 6♥ | ♣2 | = | +11 |
| -2.8 | Round 7 | INDONESIA Seniors | 5 | 3NT | ♥A | -1 | -5 |
| -2.8 | Round 15 | SHEN | 30 | 3NT | ♦4 | -1 | -5 |
| -3.1 | Round 1 | NEIMENGGU | 8 | 4♠ | ♥4 | -1 | -10 |
| -3.2 | Round 7 | INDONESIA Seniors | 10 | 2♠ | ♥8 | +1 | -7 |
| -3.2 | Round 8 | SIVY A | 17 | 6♦ | ♥6 | -3 | -6 |
| -3.2 | Round 8 | SIVY A | 18 | 4♠ | ♣K | +1 | +0 |
| -3.2 | Round 13 | POLAND Women | 3 | 1NT | ♦4 | +1 | -11 |
| -3.3 | Round 7 | INDONESIA Seniors | 4 | 5♦ | ♠K | +1 | -3 |
| -3.5 | Round 13 | POLAND Women | 1 | 4♥ | ♦Q | = | +0 |
| -3.7 | Round 3 | KONG HAN | 29 | 3♠ | ♥J | +1 | +1 |
| -3.7 | Round 10 | BRAZIL Mixed | 10 | 3♠ | ♥6 | -1 | -5 |
| -3.9 | Round 1 | NEIMENGGU | 9 | 4♥x | ♦Q | -1 | +0 |
| -4.5 | Round 13 | POLAND Women | 8 | 6♦ | ♠A | = | +0 |
| -5.9 | Round 12 | CHINA MIXED | 24 | 4♠ | ♣4 | +1 | +0 |
| -6.3 | Round 4 | INDONESIA Mixed | 2 | 6♥x | ♦A | -1 | -7 |
| -6.8 | Round 1 | NEIMENGGU | 10 | 5♣x | ♣4 | -1 | -8 |
| -6.8 | Round 10 | BRAZIL Mixed | 2 | 4♠x | ♠2 | = | -7 |
| -6.9 | Round 1 | NEIMENGGU | 4 | 4♥ | ♦9 | -2 | -8 |
| -6.9 | Round 15 | SHEN | 22 | 3NT | ♠4 | -1 | -12 |
| -7.8 | Round 4 | INDONESIA Mixed | 9 | 3NTx | ♠A | -2 | -11 |
| -8.6 | Round 10 | BRAZIL Mixed | 3 | 5♣x | ♣4 | = | -4 |