DUFRAT Katarzyna · WESTHEIMER
9rank
+70.9Butler · 90 bds
+0.79per board
±4.3swing
+1.26vs par /bd · #5/84
+0.74adjusted /bd
by round
vs par split: bidding +0.99 · play +0.27
Strength of schedule: opponents averaged -0.04/bd (an average draw) → opponent-adjusted +0.74/bd
Card play — on target: opening leads 81.5% #35 of 84 · declarer play 76.2% #39 of 84 · defence 89.6% #17 of 84
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 75.0% (12) | 86.7% (15) |
| Declarer play | 75.0% (4) | 76.5% (17) |
| Defence | 95.0% (20) | 85.7% (28) |
Opening leads by suit led: ♠ 83.3% (6) · ♥ 87.5% (8) · ♦ 83.3% (12) · ♣ 0.0% (1)
vs par by strain: NT +1.28 (29) · a suit +1.25 (61)
vs par by level: part-score +1.85 (34) · game +0.55 (51) · slam +4.40 (5)
By role: declaring +1.10/bd (-0.26 vs par · 42) · defending +0.51/bd (+2.58 vs par · 48)
By vulnerability: vulnerable +1.17/bd (+1.16 vs par · 45) · not vulnerable +0.41/bd (+1.36 vs par · 45)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | J.Zmuda | J.Weingold – M.Oneill | Open | 10 | +18.9 | +1.89 | -0.50 |
| Round 3 | J.Zmuda | T.Ponomareva – V.Gromova | Closed | 10 | +7.8 | +0.78 | +2.80 |
| Round 4 | J.Zmuda | J.Stansby – D.Rosenberg | Open | 10 | -4.8 | -0.48 | -0.30 |
| Round 5 | J.Zmuda | S.Kolen – C.Arnolds | Open | 10 | +6.7 | +0.67 | +2.50 |
| Round 6 | J.Zmuda | M.Sato – N.Nishida | Closed | 10 | -2.1 | -0.21 | -1.70 |
| Round 7 | J.Zmuda | V.Bessis – A.Huberschwiller | Closed | 10 | +35.0 | +3.50 | +6.60 |
| Round 8 | J.Zmuda | C.Baldysz – Z.Baldysz | Closed | 10 | +4.5 | +0.45 | +0.70 |
| Round 9 | J.Zmuda | I.Gronkvist – C.Rimstedt | Closed | 10 | -1.5 | -0.15 | +0.20 |
| Round 10 | J.Zmuda | K.Sanborn – I.Levitina | Closed | 10 | +6.4 | +0.64 | +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 |
|---|---|---|---|---|---|---|---|
| +11.7 | Round 3 | APEROL | 2 | 4♠ | ♦A | = | +14 |
| +10.5 | Round 7 | BARONI | 18 | 6♠ | ♦K | -7 | +13 |
| +8.4 | Round 8 | POLAND | 25 | 4♠x | ♦Q | = | +4 |
| +8.2 | Round 1 | STRUL | 1 | 3♦x | ♥2 | = | +11 |
| +7.4 | Round 7 | BARONI | 11 | 4♠x | ♥7 | -4 | -5 |
| +7.3 | Round 8 | POLAND | 29 | 3NT | ♥J | -4 | +11 |
| +7.0 | Round 7 | BARONI | 14 | 4♠ | ♦J | = | +11 |
| +6.8 | Round 7 | BARONI | 13 | 3♥ | ♥5 | -3 | +9 |
| +6.8 | Round 8 | POLAND | 24 | 2♣ | ♦6 | +1 | +8 |
| +6.5 | Round 3 | APEROL | 1 | 3NT | ♥Q | -1 | +5 |
| +5.4 | Round 10 | BAKER | 16 | 3NT | ♠Q | -1 | +6 |
| +5.2 | Round 1 | STRUL | 10 | 2NT | ♦Q | = | +0 |
| +5.1 | Round 4 | JOEL | 11 | 3NTx | ♣J | = | +4 |
| +4.7 | Round 7 | BARONI | 15 | 3♦ | ♣10 | = | +0 |
| +4.6 | Round 5 | NETHERLANDS WOMEN | 22 | 2♥ | ♦10 | +3 | +10 |
| +4.6 | Round 9 | KODA | 7 | 2♥ | ♠A | = | +12 |
| +4.3 | Round 1 | STRUL | 2 | 5♦ | ♠7 | = | +3 |
| +4.2 | Round 9 | KODA | 5 | 4♠ | ♥5 | -1 | -2 |
| +4.1 | Round 6 | ALLINA AND MAK | 5 | 1NT | ♠Q | +3 | -2 |
| +4.1 | Round 10 | BAKER | 13 | 4NT | ♥J | +2 | +17 |
| +4.0 | Round 4 | JOEL | 14 | 4♠ | ♦9 | -2 | +6 |
| +3.9 | Round 4 | JOEL | 18 | 3♠ | ♥5 | = | +0 |
| +3.5 | Round 5 | NETHERLANDS WOMEN | 26 | 1NT | ♥10 | +2 | +10 |
| +3.5 | Round 6 | ALLINA AND MAK | 1 | 3♠ | ♦J | -2 | +0 |
| +3.3 | Round 3 | APEROL | 7 | 3NT | ♥10 | -1 | +12 |
| +3.3 | Round 5 | NETHERLANDS WOMEN | 27 | 4♥ | ♦7 | -1 | +10 |
| +3.1 | Round 1 | STRUL | 9 | 2NT | ♥5 | -2 | +3 |
| +2.9 | Round 1 | STRUL | 5 | 3♥ | ♦4 | = | +1 |
| +2.9 | Round 3 | APEROL | 8 | 4♠ | ♣5 | = | +7 |
| +2.6 | Round 1 | STRUL | 3 | 3♠ | ♦K | = | +0 |
| +2.5 | Round 5 | NETHERLANDS WOMEN | 25 | 3NT | ♥J | +2 | +0 |
| +2.4 | Round 3 | APEROL | 10 | 2NT | ♠9 | -1 | +0 |
| +2.2 | Round 7 | BARONI | 20 | 4♠ | ♠2 | +1 | +0 |
| +2.1 | Round 7 | BARONI | 19 | 2♣ | ♥K | +1 | +12 |
| +1.7 | Round 1 | STRUL | 6 | 3♦ | ♣3 | +1 | +1 |
| +1.5 | Round 10 | BAKER | 15 | 4♥ | ♦K | -1 | -2 |
| +1.4 | Round 6 | ALLINA AND MAK | 8 | 5♣ | ♠3 | +1 | -14 |
| +1.4 | Round 9 | KODA | 9 | 4♠ | ♠A | +1 | +1 |
| +1.3 | Round 9 | KODA | 1 | 2NT | ♥J | = | +7 |
| +1.2 | Round 3 | APEROL | 5 | 4♠ | ♥4 | +1 | +0 |
| +1.1 | Round 7 | BARONI | 16 | 4♠ | ♦2 | -2 | +8 |
| +1.0 | Round 5 | NETHERLANDS WOMEN | 28 | 2♠ | ♥A | = | +0 |
| +0.9 | Round 4 | JOEL | 20 | 3NT | ♥4 | +3 | -13 |
| +0.7 | Round 1 | STRUL | 4 | 2♥ | ♦9 | -1 | -11 |
| +0.7 | Round 6 | ALLINA AND MAK | 4 | 4♥ | ♣K | = | +3 |
| +0.6 | Round 10 | BAKER | 18 | 1NT | ♦9 | -1 | -1 |
| +0.3 | Round 5 | NETHERLANDS WOMEN | 29 | 5♦ | ♣3 | = | -1 |
| +0.3 | Round 6 | ALLINA AND MAK | 9 | 3♠ | ♣A | -1 | -4 |
| +0.3 | Round 9 | KODA | 2 | 4♠ | ♦K | -1 | +5 |
| +0.3 | Round 10 | BAKER | 17 | 2♥ | ♣Q | = | -1 |
| +0.2 | Round 6 | ALLINA AND MAK | 10 | 2♠ | ♥8 | +1 | +0 |
| +0.2 | Round 10 | BAKER | 20 | 5♦ | ♥3 | = | +2 |
| +0.1 | Round 6 | ALLINA AND MAK | 7 | 4♥ | ♣4 | +1 | +0 |
| +0.1 | Round 8 | POLAND | 28 | 1NT | ♥Q | = | +1 |
| +0.1 | Round 10 | BAKER | 14 | 3NT | ♠A | +1 | +0 |
| +0.0 | Round 8 | POLAND | 23 | 3NT | ♥2 | +1 | +0 |
| -0.2 | Round 9 | KODA | 8 | 4♠ | ♥J | = | +0 |
| -0.3 | Round 3 | APEROL | 6 | 3NT | ♠4 | = | +0 |
| -0.3 | Round 4 | JOEL | 19 | 3♦ | ♥5 | +1 | +1 |
| -0.3 | Round 8 | POLAND | 21 | 3NT | ♠6 | = | +0 |
| -0.3 | Round 9 | KODA | 4 | 4♥ | ♣A | +1 | +0 |
| -0.4 | Round 8 | POLAND | 26 | 2♥ | ♦Q | +1 | +0 |
| -0.8 | Round 7 | BARONI | 12 | 3♦ | ♥3 | +1 | +7 |
| -0.9 | Round 3 | APEROL | 9 | 2♠ | ♣6 | +1 | +0 |
| -0.9 | Round 4 | JOEL | 12 | 6♦ | ♠2 | = | -2 |
| -1.2 | Round 6 | ALLINA AND MAK | 2 | 4♥ | ♦K | = | +1 |
| -1.4 | Round 6 | ALLINA AND MAK | 6 | 2♠ | ♦A | -1 | -1 |
| -1.5 | Round 5 | NETHERLANDS WOMEN | 23 | 5♦x | ♣A | -1 | -2 |
| -1.6 | Round 9 | KODA | 3 | 1NT | ♠4 | -1 | -4 |
| -1.9 | Round 10 | BAKER | 12 | 2♠ | ♦5 | +1 | +0 |
| -1.9 | Round 10 | BAKER | 19 | 3NT | ♠7 | -1 | -5 |
| -2.0 | Round 4 | JOEL | 17 | 5♥ | ♠3 | = | +0 |
| -2.0 | Round 5 | NETHERLANDS WOMEN | 21 | 3NT | ♣2 | +1 | -1 |
| -2.0 | Round 10 | BAKER | 11 | 5♣ | ♥4 | -2 | -6 |
| -2.3 | Round 5 | NETHERLANDS WOMEN | 24 | 6NT | ♠J | = | +0 |
| -2.5 | Round 8 | POLAND | 27 | 3NT | ♦2 | -1 | -5 |
| -2.7 | Round 5 | NETHERLANDS WOMEN | 30 | 2♥ | ♠10 | +1 | -1 |
| -4.0 | Round 1 | STRUL | 8 | 2♣ | ♣2 | = | -5 |
| -4.2 | Round 4 | JOEL | 15 | 5♥x | ♠K | -2 | -2 |
| -5.0 | Round 9 | KODA | 6 | 4♥ | ♣7 | -1 | -5 |
| -5.6 | Round 4 | JOEL | 13 | 4NT | ♥9 | +1 | +0 |
| -5.7 | Round 4 | JOEL | 16 | 5♥ | ♠A | +1 | +3 |
| -5.8 | Round 1 | STRUL | 7 | 3NT | ♦3 | -2 | -8 |
| -6.0 | Round 7 | BARONI | 17 | 6♣ | ♦5 | +1 | +11 |
| -6.2 | Round 9 | KODA | 10 | 4♠ | ♣3 | -1 | -12 |
| -6.9 | Round 8 | POLAND | 30 | 3NT | ♣J | = | +0 |
| -8.0 | Round 8 | POLAND | 22 | 4♠x | ♥6 | -2 | -12 |
| -9.1 | Round 3 | APEROL | 3 | 3NT | ♦J | = | +0 |
| -9.8 | Round 6 | ALLINA AND MAK | 3 | 6♥ | ♦A | = | +0 |
| -9.9 | Round 3 | APEROL | 4 | 4♥ | ♦2 | = | -10 |