PIAFSKY Don · BARAN
558rank
-29.3Butler · 90 bds
-0.33per board
±4.4swing
-0.81vs par /bd · #593/672
+0.08adjusted /bd
by round
vs par split: bidding -0.98 · play +0.40
Strength of schedule: opponents averaged +0.41/bd (a tough draw) → opponent-adjusted +0.08/bd
Card play — on target: opening leads 69.2% #590 of 671 · declarer play 90.0% #69 of 671 · defence 88.9% #181 of 672
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | · | 69.2% (13) |
| Declarer play | · | 90.0% (20) |
| Defence | · | 88.9% (27) |
Opening leads by suit led: ♠ 75.0% (4) · ♥ 100.0% (3) · ♦ 33.3% (3) · ♣ 66.7% (3)
vs par by strain: a suit -0.58 (62)
vs par by level: part-score -0.75 (24) · game -0.42 (36) · slam -1.50 (2)
By role: declaring +0.29/bd (-1.66 vs par · 53) · defending -1.21/bd (+0.41 vs par · 37)
By vulnerability: vulnerable -0.80/bd (-1.52 vs par · 52) · not vulnerable +0.32/bd (+0.16 vs par · 38)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | F.Hoffer | F.Dahl – G.Norris | Closed | 10 | -19.2 | -1.92 | -3.20 |
| Round 3 | D.Korbel | Q.Zhou – J.Qian | Open | 10 | +3.2 | +0.32 | -1.50 |
| Round 4 | J.Carruthers | R.Parasian Tobing – T.Asbi | Open | 10 | -9.6 | -0.96 | -1.40 |
| Round 7 | A.Hobart | K.Murniati – S.Dewi | Closed | 10 | -7.6 | -0.76 | -1.70 |
| Round 8 | A.Hobart | P.Choy – Y.Tan | Closed | 10 | +13.5 | +1.35 | +2.30 |
| Round 9 | B.Baran | G.Mattsson – H.Humburg | Closed | 10 | -10.0 | -1.00 | -1.70 |
| Round 10 | B.Baran | G.Cui – W.Cui | Open | 10 | -19.5 | -1.95 | -3.70 |
| Round 11 | B.Baran | G.Zhang – J.Weng | Open | 10 | +1.9 | +0.19 | +0.60 |
| Round 12 | A.Hobart | N.Chen – Y.Jing | Closed | 10 | +18.0 | +1.80 | +3.00 |
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 |
|---|---|---|---|---|---|---|---|
| +11.9 | Round 8 | SCTT | 13 | 6♠ | ♥A | = | +10 |
| +10.9 | Round 12 | BEIJING ZHU YE | 26 | 4♥ | ♣4 | = | +10 |
| +10.1 | Round 4 | INDONESIA OPEN | 8 | 5♦ | ♦A | = | +11 |
| +8.1 | Round 11 | SII-06 STAR | 15 | 4♠ | ♥A | +1 | +11 |
| +6.9 | Round 1 | SWE-DANES | 8 | 3N | ♣4 | +1 | +8 |
| +6.3 | Round 3 | JIANGSU | 28 | 3N | ♠4 | +1 | +5 |
| +6.3 | Round 12 | BEIJING ZHU YE | 21 | 4♥ | ♣2 | = | +8 |
| +6.2 | Round 3 | JIANGSU | 24 | 3N | ♣K | = | +6 |
| +5.8 | Round 7 | INDONESIA LADIES | 5 | 4♠ | ♥J | +1 | +6 |
| +5.4 | Round 12 | BEIJING ZHU YE | 24 | 2♠ | ♦4 | +1 | +0 |
| +5.3 | Round 8 | SCTT | 11 | 3N | ♥2 | -1 | +8 |
| +4.2 | Round 9 | GERMANY SENIORS 1 | 29 | 4♠ | ♥K | -3 | +5 |
| +3.6 | Round 12 | BEIJING ZHU YE | 22 | 4♦ | ♥10 | -1 | +5 |
| +3.5 | Round 10 | HENAN FENGSHEN | 2 | 5♦ | ♦7 | = | +0 |
| +3.3 | Round 3 | JIANGSU | 30 | 3N | ♠J | = | -6 |
| +3.3 | Round 11 | SII-06 STAR | 18 | 3♣ | ♣3 | +2 | +2 |
| +3.0 | Round 9 | GERMANY SENIORS 1 | 30 | 4♠ | ♣K | -1 | +5 |
| +2.6 | Round 4 | INDONESIA OPEN | 6 | 4♣x | ♠Q | -2 | -8 |
| +2.6 | Round 8 | SCTT | 20 | 4♠ | ♥K | = | +0 |
| +2.6 | Round 10 | HENAN FENGSHEN | 8 | 4♠ | ♦A | -1 | -1 |
| +2.4 | Round 4 | INDONESIA OPEN | 3 | 3N | ♥9 | +2 | +0 |
| +2.4 | Round 8 | SCTT | 19 | 2♠ | ♥K | = | +5 |
| +2.0 | Round 11 | SII-06 STAR | 12 | 3♣ | ♦8 | +1 | +11 |
| +1.9 | Round 8 | SCTT | 12 | 2N | ♦2 | -1 | +5 |
| +1.5 | Round 12 | BEIJING ZHU YE | 29 | 4♠ | ♥Q | -1 | +0 |
| +1.4 | Round 1 | SWE-DANES | 9 | 3N | ♥10 | +2 | +0 |
| +1.3 | Round 11 | SII-06 STAR | 17 | 2♠ | ♣Q | -1 | +4 |
| +1.2 | Round 1 | SWE-DANES | 1 | 3♦ | ♣K | +1 | +8 |
| +1.2 | Round 10 | HENAN FENGSHEN | 3 | 3♠ | ♠3 | +1 | +1 |
| +1.2 | Round 11 | SII-06 STAR | 19 | 4♠ | ♣J | +1 | +1 |
| +0.9 | Round 7 | INDONESIA LADIES | 6 | 5♥ | ♣K | = | +0 |
| +0.9 | Round 9 | GERMANY SENIORS 1 | 24 | 4♥ | ♦4 | = | -5 |
| +0.9 | Round 11 | SII-06 STAR | 20 | 3N | ♠4 | +2 | +13 |
| +0.8 | Round 7 | INDONESIA LADIES | 4 | 4♥ | ♠9 | +1 | +0 |
| +0.8 | Round 12 | BEIJING ZHU YE | 25 | 3N | ♥5 | +2 | +6 |
| +0.7 | Round 3 | JIANGSU | 22 | 3N | ♥Q | +1 | -5 |
| +0.6 | Round 4 | INDONESIA OPEN | 7 | 1N | ♥2 | +1 | -1 |
| +0.5 | Round 12 | BEIJING ZHU YE | 23 | 5♦ | ♠6 | -1 | +6 |
| +0.2 | Round 9 | GERMANY SENIORS 1 | 23 | 1N | ♥4 | +1 | +0 |
| +0.1 | Round 7 | INDONESIA LADIES | 1 | 4♥ | ♠K | = | +1 |
| -0.0 | Round 7 | INDONESIA LADIES | 3 | 1N | ♣Q | -2 | -9 |
| -0.1 | Round 4 | INDONESIA OPEN | 2 | 3N | ♠4 | +1 | +0 |
| -0.3 | Round 3 | JIANGSU | 21 | 2N | ♣10 | = | -1 |
| -0.3 | Round 3 | JIANGSU | 25 | 2♣x | ♣5 | -1 | +0 |
| -0.3 | Round 7 | INDONESIA LADIES | 10 | 2♥ | ♦K | = | -1 |
| -0.3 | Round 10 | HENAN FENGSHEN | 5 | 4♠ | ♥7 | +2 | -11 |
| -0.4 | Round 9 | GERMANY SENIORS 1 | 28 | 5♦ | ♠A | +1 | +5 |
| -0.6 | Round 8 | SCTT | 17 | 3N | ♥4 | = | +6 |
| -0.7 | Round 1 | SWE-DANES | 10 | 4♥ | ♠4 | +1 | -4 |
| -0.8 | Round 1 | SWE-DANES | 6 | 2♠ | ♦5 | -1 | +0 |
| -0.8 | Round 7 | INDONESIA LADIES | 9 | 4♥ | ♦A | +2 | +11 |
| -1.0 | Round 4 | INDONESIA OPEN | 5 | 2♥ | ♦A | -1 | +1 |
| -1.0 | Round 8 | SCTT | 14 | 2N | ♥6 | -2 | +0 |
| -1.0 | Round 10 | HENAN FENGSHEN | 4 | 1N | ♣7 | -1 | -5 |
| -1.2 | Round 11 | SII-06 STAR | 13 | 2♥ | ♣2 | = | -1 |
| -1.3 | Round 3 | JIANGSU | 29 | 5♦ | ♣A | +1 | +1 |
| -1.3 | Round 12 | BEIJING ZHU YE | 30 | 4♥ | ♦A | -1 | -5 |
| -1.4 | Round 10 | HENAN FENGSHEN | 6 | 4♠ | ♣A | +1 | -1 |
| -1.5 | Round 8 | SCTT | 18 | 2♠ | ♥Q | = | +0 |
| -1.5 | Round 10 | HENAN FENGSHEN | 7 | 3♠ | ♥K | = | +8 |
| -1.6 | Round 9 | GERMANY SENIORS 1 | 22 | 2♠ | ♦3 | +3 | -6 |
| -1.8 | Round 1 | SWE-DANES | 5 | 4♠ | ♣3 | -1 | -5 |
| -1.9 | Round 7 | INDONESIA LADIES | 7 | 4♠ | ♥4 | -1 | -6 |
| -2.3 | Round 3 | JIANGSU | 23 | 4♠ | ♥K | +1 | +0 |
| -2.5 | Round 4 | INDONESIA OPEN | 9 | 2♠ | ♠6 | = | +0 |
| -3.1 | Round 4 | INDONESIA OPEN | 10 | 2N | ♠2 | +1 | -1 |
| -3.1 | Round 9 | GERMANY SENIORS 1 | 26 | 4♠ | ♣8 | -1 | -6 |
| -3.1 | Round 12 | BEIJING ZHU YE | 27 | 4♥ | ♦Q | +1 | +5 |
| -3.3 | Round 11 | SII-06 STAR | 11 | 3♦ | ♦2 | +2 | -7 |
| -3.5 | Round 9 | GERMANY SENIORS 1 | 27 | 2N | ♦3 | +2 | -1 |
| -3.6 | Round 10 | HENAN FENGSHEN | 1 | 3♣ | ♦3 | -3 | -6 |
| -3.6 | Round 11 | SII-06 STAR | 14 | 3♦ | ♣5 | +2 | -15 |
| -3.7 | Round 8 | SCTT | 15 | 2♠ | ♥3 | -1 | -6 |
| -3.8 | Round 8 | SCTT | 16 | 4♠ | ♥K | -1 | -5 |
| -4.2 | Round 3 | JIANGSU | 26 | 5♣ | ♦A | +1 | -8 |
| -4.5 | Round 9 | GERMANY SENIORS 1 | 25 | 3N | ♠6 | -2 | -8 |
| -4.6 | Round 1 | SWE-DANES | 4 | 2♠ | ♦Q | = | -6 |
| -4.9 | Round 3 | JIANGSU | 27 | 3N | ♠Q | -3 | -7 |
| -4.9 | Round 7 | INDONESIA LADIES | 2 | 3♣ | ♠10 | -3 | -7 |
| -5.2 | Round 9 | GERMANY SENIORS 1 | 21 | 3N | ♣8 | +2 | -6 |
| -5.4 | Round 1 | SWE-DANES | 2 | 3N | ♠4 | = | -7 |
| -6.5 | Round 1 | SWE-DANES | 7 | 3N | ♠J | -1 | -13 |
| -6.6 | Round 12 | BEIJING ZHU YE | 28 | 4♠ | ♦K | = | -5 |
| -6.8 | Round 11 | SII-06 STAR | 16 | 6N | ♣9 | -1 | -13 |
| -7.3 | Round 7 | INDONESIA LADIES | 8 | 4♠ | ♣J | = | -12 |
| -8.5 | Round 4 | INDONESIA OPEN | 1 | 4♥ | ♣J | = | -11 |
| -8.9 | Round 1 | SWE-DANES | 3 | 6♦ | ♠A | -2 | -13 |
| -9.1 | Round 10 | HENAN FENGSHEN | 9 | 5♥x | ♠2 | -1 | -11 |
| -9.9 | Round 10 | HENAN FENGSHEN | 10 | 3N | ♣K | +1 | -11 |
| -10.1 | Round 4 | INDONESIA OPEN | 4 | 4♥x | ♠9 | -3 | -5 |