CHAI Greta · SINGAPORE
107rank
-83.4Butler · 98 bds
-0.85per board
±4.7swing
-0.66vs par /bd · #83/107
-0.91adjusted /bd
by round
vs par split: bidding -0.19 · play -0.47
Strength of schedule: opponents averaged -0.06/bd (an easy draw) → opponent-adjusted -0.91/bd
Card play — on target: opening leads 55.6% #106 of 107 · declarer play 61.1% #91 of 107 · defence 76.9% #96 of 107
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 28.6% (7) | 72.7% (11) |
| Declarer play | 54.5% (11) | 64.0% (25) |
| Defence | 75.0% (16) | 78.3% (23) |
Opening leads by suit led: ♠ 100.0% (2) · ♥ 50.0% (6) · ♦ 71.4% (7) · ♣ 0.0% (3)
vs par by strain: NT -2.27 (33) · a suit +0.15 (65)
vs par by level: part-score -1.33 (45) · game -0.12 (48) · slam +0.20 (5)
By role: declaring -0.77/bd (-1.71 vs par · 59) · defending -0.97/bd (+0.92 vs par · 39)
By vulnerability: vulnerable -0.39/bd (-0.98 vs par · 49) · not vulnerable -1.31/bd (-0.35 vs par · 49)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | J.Choo | P.Hackett – J.Sansom | Closed | 7 | -22.7 | -3.24 | -4.57 |
| Round 2 | J.Choo | M.Sawiruddin – M.Hartono | Closed | 7 | -2.0 | -0.29 | -1.86 |
| Round 3 | J.Choo | A.Yamada – K.Ohno | Closed | 7 | -3.5 | -0.50 | -1.00 |
| Round 4 | J.Choo | M.Kovacs – M.Dumbovich | Closed | 7 | -5.1 | -0.73 | +4.71 |
| Round 5 | J.Choo | R.Goel – R.Jolly | Closed | 7 | -4.6 | -0.66 | -0.29 |
| Round 6 | J.Choo | J.Liu – S.Xu | Closed | 7 | -21.3 | -3.04 | +0.71 |
| Round 7 | J.Choo | L.Dan – Y.Hu | Closed | 7 | -15.4 | -2.20 | -2.00 |
| Round 11 | J.Choo | S.Ho – A.Yeung | Closed | 7 | +0.8 | +0.11 | -1.14 |
| Round 12 | J.Choo | C.Hu – D.Gan | Closed | 7 | -16.3 | -2.33 | -6.86 |
| Round 13 | J.Choo | T.Yoshida – H.Abe | Closed | 7 | +20.8 | +2.97 | +4.00 |
| Round 14 | J.Choo | E.Sophonpanich – S.Baisamut | Closed | 7 | -0.6 | -0.09 | +0.71 |
| Round 15 | J.Choo | J.Rayner – M.Roche | Open | 7 | +6.3 | +0.90 | +0.29 |
| Round 16 | J.Choo | S.Zeligman – V.Melman | Open | 7 | -25.6 | -3.66 | -3.00 |
| Round 17 | J.Choo | H.Lall – R.Milner | Open | 7 | +5.8 | +0.83 | +1.00 |
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 |
|---|---|---|---|---|---|---|---|
| +9.9 | Round 17 | MILNER | 16 | 4♥ | ♣2 | -1 | +17 |
| +9.4 | Round 13 | IMAX | 13 | 4♥ | ♦K | = | +10 |
| +9.1 | Round 2 | INDONESIA | 10 | 6♦ | ♥5 | -2 | +13 |
| +7.7 | Round 17 | MILNER | 15 | 3NT | ♦7 | = | +10 |
| +6.9 | Round 15 | CANADA | 2 | 3NT | ♦Q | +2 | +0 |
| +6.8 | Round 13 | IMAX | 14 | 4♠ | ♦5 | = | +0 |
| +6.0 | Round 17 | MILNER | 20 | 3NT | ♦5 | = | -1 |
| +5.9 | Round 2 | INDONESIA | 13 | 5♥x | ♠A | = | +5 |
| +5.4 | Round 14 | MAGIC EYES | 15 | 1NT | ♦A | +1 | +6 |
| +5.2 | Round 6 | HAINAN OLD MAN | 12 | 4♥ | ♣2 | -2 | +11 |
| +4.3 | Round 15 | CANADA | 3 | 2♥ | ♣J | +3 | +3 |
| +4.0 | Round 3 | PLATINUM | 16 | 3NT | ♣J | +4 | +10 |
| +4.0 | Round 14 | MAGIC EYES | 17 | 2♠ | ♦K | = | +5 |
| +3.2 | Round 5 | ENGINEERS | 1 | 2NT | ♥7 | +1 | +6 |
| +3.0 | Round 5 | ENGINEERS | 3 | 2NT | ♠10 | +1 | +0 |
| +3.0 | Round 16 | MARKOWICZ | 8 | 4♠ | ♣2 | -1 | +4 |
| +2.9 | Round 13 | IMAX | 9 | 2♠ | ♥A | = | +5 |
| +2.9 | Round 13 | IMAX | 11 | 5♣ | ♥4 | = | +3 |
| +2.8 | Round 3 | PLATINUM | 19 | 3NT | ♥4 | +1 | -17 |
| +2.7 | Round 11 | MASTER MINDS | 24 | 4♠ | ♦A | = | +0 |
| +2.7 | Round 14 | MAGIC EYES | 20 | 2♥ | ♠4 | -1 | +0 |
| +2.6 | Round 11 | MASTER MINDS | 25 | 3NT | ♣6 | +2 | +0 |
| +2.2 | Round 11 | MASTER MINDS | 26 | 4♠ | ♣7 | = | +9 |
| +2.1 | Round 12 | WUHAN | 7 | 2♥ | ♥4 | +1 | +0 |
| +2.0 | Round 3 | PLATINUM | 17 | 2♥ | ♠Q | = | -1 |
| +1.8 | Round 7 | HUBEI QIAOXIE | 15 | 4♥ | ♠K | -2 | +13 |
| +1.5 | Round 5 | ENGINEERS | 5 | 3♥ | ♦10 | = | +0 |
| +1.5 | Round 7 | HUBEI QIAOXIE | 17 | 2♠ | ♥3 | +2 | +1 |
| +1.3 | Round 13 | IMAX | 12 | 3NT | ♣8 | +1 | +0 |
| +1.0 | Round 3 | PLATINUM | 18 | 1NT | ♦5 | -1 | +2 |
| +1.0 | Round 15 | CANADA | 7 | 4♥ | ♣Q | +1 | +0 |
| +0.8 | Round 2 | INDONESIA | 14 | 1NT | ♣4 | -1 | -2 |
| +0.7 | Round 4 | HUNGARY | 23 | 6♣ | ♦10 | -1 | +17 |
| +0.7 | Round 12 | WUHAN | 3 | 1NT | ♠4 | +2 | -10 |
| +0.6 | Round 5 | ENGINEERS | 7 | 4♠ | ♠6 | = | +0 |
| +0.6 | Round 16 | MARKOWICZ | 11 | 1NT | ♣4 | +3 | +6 |
| +0.5 | Round 1 | HACKETT | 3 | 2♠ | ♣9 | -1 | +1 |
| +0.4 | Round 4 | HUNGARY | 24 | 3NT | ♠3 | = | -2 |
| +0.2 | Round 4 | HUNGARY | 22 | 2♥ | ♦K | +1 | +0 |
| +0.2 | Round 15 | CANADA | 5 | 5♥ | ♦A | = | +4 |
| +0.1 | Round 15 | CANADA | 1 | 3NT | ♣J | +2 | +0 |
| +0.1 | Round 16 | MARKOWICZ | 9 | 2♥ | ♥3 | -2 | +11 |
| +0.0 | Round 1 | HACKETT | 5 | 2♠ | ♣2 | +1 | +0 |
| +0.0 | Round 4 | HUNGARY | 28 | 3NT | ♣2 | -1 | -6 |
| -0.0 | Round 11 | MASTER MINDS | 28 | 3NT | ♠J | +1 | +0 |
| +0.0 | Round 15 | CANADA | 4 | 4♥ | ♠4 | +1 | +0 |
| +0.0 | Round 17 | MILNER | 19 | 3NT | ♠9 | +1 | +0 |
| -0.2 | Round 6 | HAINAN OLD MAN | 13 | 3♠ | ♥A | = | +0 |
| -0.2 | Round 11 | MASTER MINDS | 27 | 2NT | ♠8 | = | -7 |
| -0.3 | Round 1 | HACKETT | 4 | 1NT | ♣3 | = | -5 |
| -0.3 | Round 4 | HUNGARY | 26 | 4♠ | ♣A | = | +13 |
| -0.3 | Round 5 | ENGINEERS | 2 | 2♥ | ♠10 | +1 | +0 |
| -0.5 | Round 2 | INDONESIA | 8 | 3♣ | ♠10 | -1 | -4 |
| -0.5 | Round 3 | PLATINUM | 15 | 2♠ | ♦6 | = | +0 |
| -0.5 | Round 7 | HUBEI QIAOXIE | 20 | 5♠ | ♠2 | +1 | -13 |
| -0.8 | Round 7 | HUBEI QIAOXIE | 21 | 2♠ | ♦6 | +1 | +0 |
| -0.9 | Round 4 | HUNGARY | 25 | 3NT | ♣4 | +3 | +12 |
| -1.0 | Round 13 | IMAX | 8 | 3NT | ♠7 | +2 | -1 |
| -1.1 | Round 14 | MAGIC EYES | 19 | 2♥ | ♠Q | +2 | +1 |
| -1.2 | Round 2 | INDONESIA | 9 | 4♣ | ♦A | = | -7 |
| -1.4 | Round 12 | WUHAN | 5 | 3NT | ♠J | +1 | -10 |
| -1.5 | Round 13 | IMAX | 10 | 2♥ | ♣K | = | +11 |
| -1.9 | Round 14 | MAGIC EYES | 16 | 2♠ | ♦9 | = | +1 |
| -2.0 | Round 1 | HACKETT | 2 | 3NT | ♥5 | -2 | -6 |
| -2.3 | Round 16 | MARKOWICZ | 10 | 2♠ | ♠8 | = | -6 |
| -2.4 | Round 5 | ENGINEERS | 4 | 2♠ | ♣5 | +2 | -10 |
| -2.5 | Round 17 | MILNER | 18 | 4♦ | ♣4 | -2 | -2 |
| -2.7 | Round 6 | HAINAN OLD MAN | 10 | 2♠ | ♦K | +1 | +0 |
| -2.7 | Round 12 | WUHAN | 1 | 2♠ | ♥A | -1 | -8 |
| -2.8 | Round 3 | PLATINUM | 21 | 5♦x | ♠10 | -5 | +15 |
| -2.8 | Round 7 | HUBEI QIAOXIE | 18 | 2♦ | ♠8 | -1 | +1 |
| -2.9 | Round 1 | HACKETT | 1 | 2♠ | ♦J | -1 | +2 |
| -2.9 | Round 7 | HUBEI QIAOXIE | 19 | 3♣ | ♥10 | -1 | -5 |
| -3.2 | Round 6 | HAINAN OLD MAN | 9 | 4♥ | ♣3 | +1 | +12 |
| -3.2 | Round 11 | MASTER MINDS | 23 | 3NT | ♦4 | +1 | -11 |
| -3.3 | Round 11 | MASTER MINDS | 22 | 3♠ | ♣7 | -2 | +1 |
| -3.4 | Round 6 | HAINAN OLD MAN | 8 | 3NT | ♦J | = | +1 |
| -4.4 | Round 12 | WUHAN | 4 | 3♥ | ♦A | -1 | -6 |
| -4.5 | Round 12 | WUHAN | 6 | 4♥ | ♥8 | +1 | -11 |
| -4.6 | Round 6 | HAINAN OLD MAN | 11 | 4♣ | ♦7 | -2 | -6 |
| -4.8 | Round 14 | MAGIC EYES | 21 | 2♥ | ♥Q | -2 | -7 |
| -4.9 | Round 14 | MAGIC EYES | 18 | 3NT | ♥3 | +2 | -1 |
| -5.2 | Round 4 | HUNGARY | 27 | 5♣ | ♦A | +1 | -1 |
| -5.3 | Round 16 | MARKOWICZ | 12 | 1♠x | ♥9 | -3 | -8 |
| -5.9 | Round 1 | HACKETT | 6 | 3NT | ♥3 | = | -11 |
| -6.1 | Round 12 | WUHAN | 2 | 4♠ | ♥A | = | -3 |
| -6.1 | Round 17 | MILNER | 21 | 3NT | ♦Q | = | -7 |
| -6.2 | Round 15 | CANADA | 6 | 4♠x | ♦6 | -2 | -5 |
| -6.8 | Round 2 | INDONESIA | 12 | 3NT | ♥K | -3 | -4 |
| -9.2 | Round 17 | MILNER | 17 | 5♦ | ♥3 | -1 | -10 |
| -9.3 | Round 2 | INDONESIA | 11 | 6♠ | ♥J | -1 | -14 |
| -9.4 | Round 16 | MARKOWICZ | 14 | 4♥ | ♠K | -2 | -11 |
| -10.0 | Round 3 | PLATINUM | 20 | 2NT | ♥8 | -1 | -16 |
| -10.2 | Round 5 | ENGINEERS | 6 | 7♣ | ♠8 | = | +2 |
| -11.7 | Round 7 | HUBEI QIAOXIE | 16 | 3NTx | ♠6 | -5 | -11 |
| -12.1 | Round 1 | HACKETT | 7 | 3♠ | ♥J | -2 | -13 |
| -12.3 | Round 16 | MARKOWICZ | 13 | 6♥ | ♠Q | -1 | -17 |
| -12.4 | Round 6 | HAINAN OLD MAN | 14 | 4♠x | ♦A | = | -13 |