CHEN Rugang · WUHAN ENGINEERING
579rank
-52.1Butler · 80 bds
-0.65per board
±4.6swing
-1.77vs par /bd · #564/567
-0.81adjusted /bd
by round
vs par split: bidding -1.18 · play -0.66
Strength of schedule: opponents averaged -0.15/bd (an easy draw) → opponent-adjusted -0.81/bd
Card play — on target: opening leads 78.9% #320 of 567 · declarer play 64.0% #527 of 567 · defence 87.5% #108 of 567
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 75.0% (4) | 80.0% (15) |
| Declarer play | 75.0% (8) | 58.8% (17) |
| Defence | 87.5% (8) | 87.5% (24) |
Opening leads by suit led: ♠ 100.0% (3) · ♥ 75.0% (8) · ♦ 100.0% (3) · ♣ 60.0% (5)
vs par by strain: NT -2.92 (26) · a suit -1.30 (53)
vs par by level: part-score -0.84 (31) · game -2.14 (44) · slam -6.25 (4)
By role: declaring -0.51/bd (-3.12 vs par · 48) · defending -0.87/bd (+0.25 vs par · 32)
By vulnerability: vulnerable -0.61/bd (-1.82 vs par · 40) · not vulnerable -0.69/bd (-1.73 vs par · 40)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 2 | D.Fei | R.Milne – B.O'Brien | Closed | 10 | -5.0 | -0.50 | +1.20 |
| Round 3 | X.Hua | S.Shen – S.Wu | Closed | 10 | +4.2 | +0.42 | +1.60 |
| Round 5 | D.Fei | Z.Ba – L.Tian | Open | 10 | -12.7 | -1.27 | -1.80 |
| Round 6 | X.Hua | Z.Zhu – W.Cai | Open | 10 | -14.2 | -1.42 | -3.20 |
| Round 7 | D.Fei | S.Haque – M.Ahasan | Open | 10 | +1.4 | +0.14 | -2.20 |
| Round 9 | D.Fei | S.Rungsathit – P.Suriya | Open | 10 | -9.7 | -0.97 | -4.10 |
| Round 10 | X.Hua | K.Plengsap – K.Janebunjong | Open | 10 | -17.1 | -1.71 | -3.60 |
| Round 15 | D.Fan | X.Zhang – J.Liang | Open | 10 | +1.0 | +0.10 | -2.10 |
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 |
|---|---|---|---|---|---|---|---|
| +8.4 | Round 7 | BANGLADESH | 10 | 1♦ | ♣9 | -4 | +7 |
| +8.1 | Round 2 | IRELAND | 19 | 3NT | ♦10 | +2 | +11 |
| +7.8 | Round 15 | YENOVA | 28 | 6♠ | ♦6 | = | +0 |
| +7.5 | Round 3 | SAN CHEN FUND | 21 | 3NT | ♠K | -1 | +11 |
| +7.1 | Round 9 | BANGKOK MIND SPORT | 21 | 4♥x | ♠J | -1 | +11 |
| +6.8 | Round 9 | BANGKOK MIND SPORT | 22 | 3NT | ♠5 | +1 | +7 |
| +6.8 | Round 10 | THAILAND Mixed | 2 | 4♠x | ♥A | = | +7 |
| +6.5 | Round 6 | ZJJDWUHANYUAN | 29 | 6♠ | ♦3 | = | +0 |
| +6.1 | Round 5 | NEIMENGGU | 17 | 4♥ | ♦5 | = | +7 |
| +5.9 | Round 15 | YENOVA | 22 | 3NT | ♠4 | = | +0 |
| +5.8 | Round 3 | SAN CHEN FUND | 25 | 4♥ | ♦A | -2 | +3 |
| +5.5 | Round 15 | YENOVA | 25 | 2♥x | ♥K | -1 | +6 |
| +5.4 | Round 15 | YENOVA | 21 | 4♥ | ♠5 | -2 | +8 |
| +4.6 | Round 7 | BANGLADESH | 3 | 3NT | ♥10 | -2 | +6 |
| +4.0 | Round 2 | IRELAND | 17 | 3♠ | ♦A | -1 | +10 |
| +3.6 | Round 3 | SAN CHEN FUND | 23 | 2♣x | ♠J | = | +7 |
| +3.6 | Round 9 | BANGKOK MIND SPORT | 24 | 2♥ | ♦5 | = | +1 |
| +3.6 | Round 10 | THAILAND Mixed | 1 | 3NT | ♣Q | -2 | +0 |
| +3.1 | Round 6 | ZJJDWUHANYUAN | 25 | 1NT | ♦3 | = | -1 |
| +2.8 | Round 2 | IRELAND | 18 | 2♥ | ♠A | = | +1 |
| +2.0 | Round 3 | SAN CHEN FUND | 27 | 3NT | ♣4 | = | +3 |
| +1.9 | Round 7 | BANGLADESH | 1 | 4♥ | ♣9 | -2 | +0 |
| +1.6 | Round 7 | BANGLADESH | 5 | 3♣ | ♥7 | +1 | +0 |
| +1.4 | Round 9 | BANGKOK MIND SPORT | 23 | 5♦x | ♥4 | +1 | -13 |
| +1.1 | Round 3 | SAN CHEN FUND | 26 | 4♥ | ♠K | +2 | +13 |
| +0.8 | Round 15 | YENOVA | 24 | 3NT | ♠8 | +3 | +1 |
| +0.6 | Round 2 | IRELAND | 13 | 1NT | ♦K | = | -1 |
| +0.6 | Round 5 | NEIMENGGU | 11 | 2NT | ♣3 | = | +1 |
| +0.6 | Round 5 | NEIMENGGU | 16 | 3♣ | ♠A | +1 | -7 |
| +0.5 | Round 9 | BANGKOK MIND SPORT | 26 | 3NT | ♥5 | +2 | -12 |
| +0.2 | Round 5 | NEIMENGGU | 14 | 3♠ | ♥J | -1 | +5 |
| +0.2 | Round 6 | ZJJDWUHANYUAN | 26 | 1♠ | ♦3 | -1 | +1 |
| +0.2 | Round 6 | ZJJDWUHANYUAN | 30 | 2♥ | ♦3 | +2 | -6 |
| +0.1 | Round 6 | ZJJDWUHANYUAN | 22 | 2♥ | ♦3 | = | +1 |
| -0.0 | Round 10 | THAILAND Mixed | 8 | 6NT | ♣5 | = | -11 |
| -0.4 | Round 5 | NEIMENGGU | 20 | 2♠ | ♣4 | +1 | +0 |
| -0.4 | Round 7 | BANGLADESH | 7 | 2♦ | ♦3 | = | -1 |
| -0.6 | Round 2 | IRELAND | 14 | 3♦ | ♥7 | = | -5 |
| -0.8 | Round 7 | BANGLADESH | 4 | 5♠x | ♠5 | -2 | +0 |
| -0.8 | Round 15 | YENOVA | 23 | 2♠ | ♥5 | = | +0 |
| -1.3 | Round 7 | BANGLADESH | 8 | 5♣ | ♦4 | = | -11 |
| -1.3 | Round 10 | THAILAND Mixed | 10 | 2♠ | ♥9 | = | +0 |
| -1.4 | Round 10 | THAILAND Mixed | 9 | Pass | +3 | ||
| -1.5 | Round 10 | THAILAND Mixed | 5 | 2♠ | ♦6 | -1 | -5 |
| -1.5 | Round 10 | THAILAND Mixed | 6 | 3♦x | ♦2 | -1 | +1 |
| -1.6 | Round 5 | NEIMENGGU | 15 | 2♥ | ♠A | = | -5 |
| -1.7 | Round 6 | ZJJDWUHANYUAN | 21 | 3NT | ♦3 | -4 | -7 |
| -1.7 | Round 9 | BANGKOK MIND SPORT | 25 | 4♥ | ♦5 | +2 | -11 |
| -2.0 | Round 3 | SAN CHEN FUND | 30 | 4♠x | ♣4 | -3 | -2 |
| -2.1 | Round 2 | IRELAND | 12 | 3♠ | ♥Q | = | +8 |
| -2.1 | Round 3 | SAN CHEN FUND | 22 | 3NT | ♣5 | -2 | -6 |
| -2.7 | Round 9 | BANGKOK MIND SPORT | 28 | 3♣ | ♥A | -1 | +0 |
| -2.8 | Round 3 | SAN CHEN FUND | 28 | 4♥ | ♦A | +1 | +0 |
| -2.8 | Round 15 | YENOVA | 30 | 3NT | ♦4 | -1 | -5 |
| -2.9 | Round 6 | ZJJDWUHANYUAN | 24 | 3NT | ♦3 | -1 | -4 |
| -3.3 | Round 2 | IRELAND | 15 | 4♦ | ♠3 | = | -2 |
| -3.6 | Round 5 | NEIMENGGU | 19 | 4♠ | ♥2 | -1 | -5 |
| -3.7 | Round 3 | SAN CHEN FUND | 24 | 5♦x | ♥4 | = | -3 |
| -3.7 | Round 7 | BANGLADESH | 2 | 2♠ | ♣K | -3 | -2 |
| -3.8 | Round 2 | IRELAND | 11 | 5♦ | ♥5 | +1 | +0 |
| -3.8 | Round 2 | IRELAND | 16 | 3NT | ♠4 | = | -7 |
| -4.3 | Round 5 | NEIMENGGU | 18 | 3NT | ♠A | -2 | -8 |
| -4.3 | Round 7 | BANGLADESH | 9 | 4♣ | ♠6 | +1 | -15 |
| -4.4 | Round 5 | NEIMENGGU | 13 | 3NT | ♦5 | = | +1 |
| -4.4 | Round 6 | ZJJDWUHANYUAN | 23 | 3NT | ♦3 | -1 | -6 |
| -4.6 | Round 7 | BANGLADESH | 6 | 5♦x | ♥2 | +1 | -6 |
| -5.2 | Round 3 | SAN CHEN FUND | 29 | 4♠ | ♥J | = | -10 |
| -5.2 | Round 15 | YENOVA | 27 | 3♠ | ♣K | = | -6 |
| -5.7 | Round 6 | ZJJDWUHANYUAN | 27 | 5♥x | ♦3 | -2 | +0 |
| -5.9 | Round 5 | NEIMENGGU | 12 | 2♠x | ♠3 | -1 | -7 |
| -5.9 | Round 10 | THAILAND Mixed | 3 | 3NT | ♥K | -2 | -11 |
| -6.0 | Round 10 | THAILAND Mixed | 4 | 5♦ | ♠A | -2 | -8 |
| -6.2 | Round 9 | BANGKOK MIND SPORT | 27 | 4♠ | ♥A | = | +0 |
| -6.9 | Round 2 | IRELAND | 20 | 3NT | ♥6 | = | -3 |
| -7.1 | Round 15 | YENOVA | 29 | 2♠ | ♥A | +1 | -12 |
| -8.0 | Round 9 | BANGKOK MIND SPORT | 29 | 4♠ | ♥A | = | -10 |
| -8.5 | Round 15 | YENOVA | 26 | 3NT | ♣Q | -2 | -13 |
| -9.6 | Round 6 | ZJJDWUHANYUAN | 28 | 3NT | ♦3 | = | -10 |
| -9.9 | Round 10 | THAILAND Mixed | 7 | 3NT | ♥K | -1 | -12 |
| -10.5 | Round 9 | BANGKOK MIND SPORT | 30 | 6♠x | ♦Q | -3 | -14 |