🇵🇱 JASSEM Krzysztof · POLAND
13rank
+17.2Butler · 96 bds
+0.18per board
±4.9swing
+0.09vs par /bd
+0.19adjusted /bd
by round
vs par split: bidding +0.25 · play -0.17
Strength of schedule: opponents averaged +0.01/bd (an average draw) → opponent-adjusted +0.19/bd
Card play — on target: opening leads 84.2% · declarer play 74.1% · defence 80.9%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 66.7% (6) | 92.3% (13) |
| Declarer play | 50.0% (6) | 81.0% (21) |
| Defence | 62.5% (8) | 84.6% (39) |
Opening leads by suit led: ♠ 100.0% (3) · ♥ 100.0% (5) · ♦ 66.7% (6) · ♣ 80.0% (5)
vs par by strain: NT +0.40 (20) · a suit +0.01 (76)
vs par by level: part-score -0.29 (35) · game +0.49 (53) · slam -0.88 (8)
By role: declaring +0.14/bd (-1.55 vs par · 49) · defending +0.23/bd (+1.81 vs par · 47)
By vulnerability: vulnerable +0.46/bd (+0.71 vs par · 48) · not vulnerable -0.10/bd (-0.52 vs par · 48)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Quarterfinal | M.Mazurkiewicz | S.De Wijs – B.Muller | Open | 16 | +14.7 | +0.92 | +1.31 |
| Quarterfinal | M.Mazurkiewicz | S.Brink – B.Drijver | Closed | 16 | +9.2 | +0.57 | +0.12 |
| Semifinal | M.Mazurkiewicz | A.Versace – L.Lauria | Open | 16 | -24.3 | -1.52 | -1.69 |
| Semifinal | M.Mazurkiewicz | A.Sementa – G.Duboin | Closed | 16 | +5.3 | +0.33 | +2.00 |
| Semifinal | M.Mazurkiewicz | A.Sementa – G.Duboin | Open | 0 | +0.0 | +0.00 | · |
| Final | M.Mazurkiewicz | K.Bathurst – K.Dwyer | Open | 16 | +17.0 | +1.06 | -1.38 |
| Final | M.Mazurkiewicz | S.Weinstein – R.Levin | Open | 16 | -4.7 | -0.29 | +0.19 |
| Final | M.Mazurkiewicz | K.Dwyer – K.Bathurst | Open | 0 | +0.0 | +0.00 | · |
| Final | M.Mazurkiewicz | K.Dwyer – K.Bathurst | Open | 0 | +0.0 | +0.00 | · |
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 |
|---|---|---|---|---|---|---|---|
| +13.0 | Semifinal | 🇮🇹 ITALY | 44 | 6♠ | ♣T | +1 | +13 |
| +11.7 | Final | 🇺🇸 USA1 | 10 | 6♠x | ♣9 | -1 | +13 |
| +10.0 | Final | 🇺🇸 USA1 | 47 | 5♦ | ♥8 | = | +0 |
| +8.3 | Final | 🇺🇸 USA1 | 4 | 3NT | ♥7 | = | +0 |
| +7.7 | Final | 🇺🇸 USA1 | 39 | 2♥ | ♣J | -2 | +2 |
| +7.4 | Quarterfinal | 🇳🇱 NETHERLANDS | 42 | 4♠x | ♠A | -1 | +13 |
| +7.0 | Semifinal | 🇮🇹 ITALY | 43 | 3NT | ♣T | +1 | +0 |
| +6.7 | Final | 🇺🇸 USA1 | 7 | 4♥ | ♣J | -2 | +8 |
| +6.6 | Quarterfinal | 🇳🇱 NETHERLANDS | 44 | 3♥ | ♣6 | +2 | +13 |
| +6.3 | Quarterfinal | 🇳🇱 NETHERLANDS | 13 | 1NT | ♠2 | -2 | +10 |
| +4.9 | Quarterfinal | 🇳🇱 NETHERLANDS | 38 | 4♥ | ♣K | -1 | +5 |
| +4.7 | Final | 🇺🇸 USA1 | 33 | 6♦ | ♠A | = | -2 |
| +4.3 | Quarterfinal | 🇳🇱 NETHERLANDS | 2 | 3NT | ♥3 | = | +0 |
| +4.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 10 | 2♠ | ♦A | +1 | +1 |
| +4.0 | Semifinal | 🇮🇹 ITALY | 8 | 3♣ | -2 | +1 | |
| +3.9 | Quarterfinal | 🇳🇱 NETHERLANDS | 34 | 3♣ | ♥7 | -2 | +5 |
| +3.9 | Quarterfinal | 🇳🇱 NETHERLANDS | 36 | 4♠ | ♠7 | +1 | -13 |
| +3.7 | Quarterfinal | 🇳🇱 NETHERLANDS | 4 | 4♠ | ♦2 | +1 | +0 |
| +3.7 | Quarterfinal | 🇳🇱 NETHERLANDS | 7 | 4♠ | ♥6 | -1 | +6 |
| +3.7 | Final | 🇺🇸 USA1 | 11 | 4♠ | ♣4 | +2 | -11 |
| +3.6 | Quarterfinal | 🇳🇱 NETHERLANDS | 48 | 3NT | ♥7 | = | -1 |
| +3.3 | Final | 🇺🇸 USA1 | 34 | 3NT | ♦5 | = | +11 |
| +3.3 | Final | 🇺🇸 USA1 | 46 | 5♥ | ♥A | -2 | +0 |
| +3.0 | Final | 🇺🇸 USA1 | 5 | 5♦x | ♥A | -3 | +5 |
| +2.7 | Final | 🇺🇸 USA1 | 15 | 1NT | ♥3 | -2 | -5 |
| +2.4 | Quarterfinal | 🇳🇱 NETHERLANDS | 6 | 2♠ | ♣4 | -1 | +0 |
| +2.3 | Semifinal | 🇮🇹 ITALY | 45 | 1NT | ♥2 | +1 | +0 |
| +2.0 | Semifinal | 🇮🇹 ITALY | 3 | 4♠ | ♣6 | = | +0 |
| +1.7 | Quarterfinal | 🇳🇱 NETHERLANDS | 9 | 1♠ | ♦7 | -1 | +2 |
| +1.7 | Semifinal | 🇮🇹 ITALY | 11 | 4♠ | ♣K | = | -1 |
| +1.7 | Semifinal | 🇮🇹 ITALY | 41 | 5♦x | ♣A | -2 | +0 |
| +1.7 | Final | 🇺🇸 USA1 | 14 | 4♣ | ♠J | = | -1 |
| +1.4 | Quarterfinal | 🇳🇱 NETHERLANDS | 35 | 3♥ | ♣J | = | +0 |
| +1.3 | Quarterfinal | 🇳🇱 NETHERLANDS | 8 | 4♠ | ♣K | = | +0 |
| +1.3 | Quarterfinal | 🇳🇱 NETHERLANDS | 11 | 3♦ | ♣6 | = | +0 |
| +1.3 | Quarterfinal | 🇳🇱 NETHERLANDS | 14 | 3♦ | ♣A | = | +0 |
| +1.3 | Semifinal | 🇮🇹 ITALY | 5 | 2♠ | ♣7 | = | +0 |
| +1.3 | Semifinal | 🇮🇹 ITALY | 38 | 3NT | ♠J | = | +11 |
| +1.0 | Semifinal | 🇮🇹 ITALY | 48 | 3NT | ♣T | -1 | -6 |
| +0.9 | Quarterfinal | 🇳🇱 NETHERLANDS | 40 | 3NT | ♥2 | +2 | +1 |
| +0.7 | Semifinal | 🇮🇹 ITALY | 6 | 3NT | ♠2 | +2 | +1 |
| +0.7 | Semifinal | 🇮🇹 ITALY | 10 | 4♠ | ♥6 | -1 | +6 |
| +0.7 | Final | 🇺🇸 USA1 | 13 | 2♠ | ♠3 | = | +0 |
| +0.7 | Final | 🇺🇸 USA1 | 40 | 2♠ | ♦K | -1 | +2 |
| +0.7 | Final | 🇺🇸 USA1 | 41 | 2♠ | ♥A | -1 | +2 |
| +0.4 | Quarterfinal | 🇳🇱 NETHERLANDS | 1 | 3NT | ♥2 | +1 | +1 |
| +0.4 | Quarterfinal | 🇳🇱 NETHERLANDS | 3 | 5♠x | ♣2 | -1 | +9 |
| +0.3 | Quarterfinal | 🇳🇱 NETHERLANDS | 43 | 4♥ | ♠A | +1 | +0 |
| +0.3 | Semifinal | 🇮🇹 ITALY | 15 | 2♠ | ♣5 | +1 | -1 |
| +0.3 | Semifinal | 🇮🇹 ITALY | 36 | 3♣ | ♠A | = | -6 |
| +0.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 45 | 1NT | ♣A | -1 | +5 |
| +0.0 | Semifinal | 🇮🇹 ITALY | 1 | 4♥ | ♠K | = | +3 |
| +0.0 | Semifinal | 🇮🇹 ITALY | 9 | 5♥ | ♠4 | = | -4 |
| +0.0 | Semifinal | 🇮🇹 ITALY | 13 | 5♥ | ♠4 | = | +0 |
| -0.0 | Semifinal | 🇮🇹 ITALY | 34 | 4♥ | ♦K | = | +6 |
| -0.0 | Semifinal | 🇮🇹 ITALY | 39 | 4♠ | ♣Q | = | +0 |
| +0.0 | Final | 🇺🇸 USA1 | 3 | 4♠ | ♣2 | = | +0 |
| +0.0 | Final | 🇺🇸 USA1 | 6 | 6♣ | ♥9 | = | +0 |
| +0.0 | Final | 🇺🇸 USA1 | 12 | 4♠ | ♦6 | = | +0 |
| +0.0 | Final | 🇺🇸 USA1 | 35 | 4♥ | ♣K | +1 | +0 |
| +0.0 | Final | 🇺🇸 USA1 | 36 | 4♥ | ♥2 | +1 | +13 |
| +0.0 | Final | 🇺🇸 USA1 | 44 | 4♠ | ♦K | = | +0 |
| -0.3 | Semifinal | 🇮🇹 ITALY | 14 | 4♠ | ♠6 | +1 | +0 |
| -0.3 | Semifinal | 🇮🇹 ITALY | 47 | 5♦ | ♥7 | +1 | +13 |
| -0.4 | Quarterfinal | 🇳🇱 NETHERLANDS | 46 | 3♥ | ♠A | -1 | +2 |
| -0.7 | Quarterfinal | 🇳🇱 NETHERLANDS | 12 | 3NT | ♣2 | = | +0 |
| -0.7 | Quarterfinal | 🇳🇱 NETHERLANDS | 37 | 5♠ | ♥Q | = | +0 |
| -0.7 | Final | 🇺🇸 USA1 | 9 | 6♣ | ♠2 | = | -11 |
| -1.0 | Semifinal | 🇮🇹 ITALY | 37 | 3♣ | ♣3 | -4 | -2 |
| -1.0 | Semifinal | 🇮🇹 ITALY | 40 | 2♥ | ♣5 | = | +1 |
| -1.0 | Final | 🇺🇸 USA1 | 43 | 3NT | ♦5 | +3 | -1 |
| -1.3 | Quarterfinal | 🇳🇱 NETHERLANDS | 15 | 5♠x | ♦9 | +1 | +6 |
| -1.3 | Semifinal | 🇮🇹 ITALY | 33 | 3♦ | ♠Q | = | +5 |
| -1.7 | Final | 🇺🇸 USA1 | 8 | 1NT | ♦3 | = | +1 |
| -1.7 | Final | 🇺🇸 USA1 | 38 | 3NT | ♠K | -1 | -5 |
| -1.7 | Final | 🇺🇸 USA1 | 42 | 2♥ | ♦8 | = | +0 |
| -2.4 | Quarterfinal | 🇳🇱 NETHERLANDS | 47 | 3♥ | ♠Q | -2 | -2 |
| -2.9 | Quarterfinal | 🇳🇱 NETHERLANDS | 39 | 3NT | ♦3 | = | -10 |
| -3.0 | Semifinal | 🇮🇹 ITALY | 2 | 4♥ | ♦5 | -3 | -10 |
| -3.1 | Quarterfinal | 🇳🇱 NETHERLANDS | 5 | 7♥ | ♠A | = | -3 |
| -3.7 | Semifinal | 🇮🇹 ITALY | 46 | 2♠ | ♥J | +2 | -1 |
| -4.3 | Semifinal | 🇮🇹 ITALY | 16 | 4♠ | ♥J | +1 | -4 |
| -4.7 | Final | 🇺🇸 USA1 | 2 | 1NT | ♥8 | = | -5 |
| -4.7 | Final | 🇺🇸 USA1 | 45 | 5♦x | ♠J | -1 | -7 |
| -6.3 | Quarterfinal | 🇳🇱 NETHERLANDS | 41 | 3♠ | ♣4 | -1 | -5 |
| -6.7 | Final | 🇺🇸 USA1 | 16 | 4♥ | ♣Q | -1 | -10 |
| -7.0 | Semifinal | 🇮🇹 ITALY | 12 | 4♠ | ♣8 | = | +1 |
| -7.0 | Semifinal | 🇮🇹 ITALY | 35 | 4♠x | ♥K | -2 | -2 |
| -7.0 | Semifinal | 🇮🇹 ITALY | 42 | 4♠ | ♣K | = | +0 |
| -7.7 | Final | 🇺🇸 USA1 | 1 | 3♣ | ♥7 | -3 | -6 |
| -8.0 | Final | 🇺🇸 USA1 | 48 | 2♥x | ♥5 | -1 | -6 |
| -8.7 | Semifinal | 🇮🇹 ITALY | 7 | 4♠x | ♥A | -1 | -8 |
| -11.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 16 | 6♥ | ♦A | -1 | -11 |
| -11.0 | Quarterfinal | 🇳🇱 NETHERLANDS | 33 | 4♦x | ♠5 | -1 | -11 |
| -11.7 | Semifinal | 🇮🇹 ITALY | 4 | 3♦ | ♦6 | = | -11 |
| -18.0 | Final | 🇺🇸 USA1 | 37 | 7♥x | ♦8 | = | -6 |