🇵🇱 KAZMIERCZAK Wojciech · POLAND
vs par split: bidding +0.74 · play +0.19
Strength of schedule: opponents averaged +0.02/bd (an average draw) → opponent-adjusted +1.09/bd
Card play — on target: opening leads 85.4% #9 of 88 · declarer play 66.0% #63 of 88 · defence 80.0% #58 of 88
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 80.0% (10) | 87.1% (31) |
| Declarer play | 62.5% (16) | 67.7% (31) |
| Defence | 75.0% (20) | 81.4% (70) |
Opening leads by suit led: ♠ 75.0% (8) · ♥ 82.4% (17) · ♦ 100.0% (7) · ♣ 88.9% (9)
vs par by strain: NT +0.37 (43) · a suit +1.02 (129)
vs par by level: part-score -0.47 (58) · game +1.20 (96) · slam +3.33 (18)
By role: declaring +1.76/bd (-0.36 vs par · 83) · defending +0.42/bd (+1.95 vs par · 92)
By vulnerability: vulnerable +1.66/bd (+0.90 vs par · 88) · not vulnerable +0.48/bd (+0.84 vs par · 88)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 3 | L.Witkowski | C.Bakke – H.Brandsnes | Closed | 16 | +1.2 | +0.07 | -2.62 |
| Round 4 | L.Witkowski | F.Illingworth – C.Huber | Closed | 16 | +72.3 | +4.52 | +3.25 |
| Round 6 | L.Witkowski | G.Donati – G.Percario | Closed | 16 | +11.0 | +0.69 | +2.88 |
| Round 7 | L.Witkowski | G.Dreimanis – J.Ilzins | Closed | 16 | +5.9 | +0.37 | +1.50 |
| Round 8 | L.Witkowski | Y.Goma – T.Kikuchi | Closed | 16 | +17.7 | +1.11 | -0.88 |
| Round 10 | L.Witkowski | B.Snowden – B.Kristensen | Closed | 16 | +33.4 | +2.09 | +1.31 |
| Round 13 | L.Witkowski | S.Ekenberg – S.Hult | Closed | 16 | +5.4 | +0.34 | -0.88 |
| Round 14 | L.Witkowski | A.Asulin – H.Levi | Closed | 16 | -11.8 | -0.74 | +1.38 |
| Round 15 | L.Witkowski | Y.Yin – C.Shen | Closed | 16 | +17.0 | +1.06 | +2.88 |
| Round 16 | L.Witkowski | R.Cooper – D.Braun | Closed | 16 | +3.3 | +0.21 | -1.31 |
| Round 17 | M.Klukowski | C.Laloubeyre – B.Combescure | Open | 16 | +33.3 | +2.08 | +2.06 |
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 |
|---|---|---|---|---|---|---|---|
| +15.1 | Round 4 | 🏴 ENGLAND | 5 | 7♦x | ♥2 | -2 | +18 |
| +13.5 | Round 4 | 🏴 ENGLAND | 3 | 7♥ | ♥3 | = | +0 |
| +13.2 | Round 16 | 🇦🇺 AUSTRALIA | 6 | 7♣ | ♥3 | -1 | +16 |
| +12.7 | Round 4 | 🏴 ENGLAND | 4 | 3Nx | ♠9 | -3 | +14 |
| +12.7 | Round 15 | 🇨🇳 CHINA | 8 | 5♣x | ♥7 | -5 | +13 |
| +12.5 | Round 4 | 🏴 ENGLAND | 13 | 3NTx | ♥5 | +3 | +12 |
| +12.0 | Round 15 | 🇨🇳 CHINA | 10 | 6♥ | ♥A | -1 | +13 |
| +11.1 | Round 7 | 🇱🇻 LATVIA | 13 | 5♠x | ♣6 | -3 | +12 |
| +11.1 | Round 10 | 🇺🇸 USA2 | 14 | 5♥x | ♣3 | -2 | +13 |
| +10.1 | Round 10 | 🇺🇸 USA2 | 4 | 5♣ | ♥8 | = | +0 |
| +9.9 | Round 10 | 🇺🇸 USA2 | 2 | 6♠ | ♦K | -1 | +13 |
| +9.9 | Round 14 | 🇮🇱 ISRAEL | 13 | 4♥ | ♦7 | = | +10 |
| +9.8 | Round 13 | 🇸🇪 SWEDEN | 7 | 4♠ | ♦6 | = | +0 |
| +9.7 | Round 8 | 🇯🇵 JAPAN | 2 | 6♥ | ♠A | -2 | +9 |
| +9.7 | Round 15 | 🇨🇳 CHINA | 7 | 4♠x | ♠J | -2 | +12 |
| +9.5 | Round 4 | 🏴 ENGLAND | 15 | 4♠ | ♠6 | -1 | +12 |
| +9.2 | Round 4 | 🏴 ENGLAND | 1 | 6♦ | ♠8 | = | +10 |
| +9.1 | Round 6 | 🇮🇹 ITALY | 12 | 3♥x | ♣A | -3 | +8 |
| +9.1 | Round 13 | 🇸🇪 SWEDEN | 9 | 6♥ | ♠5 | = | +0 |
| +8.7 | Round 17 | 🇫🇷 FRANCE | 1 | 5♦x | ♠Q | -3 | +12 |
| +8.1 | Round 17 | 🇫🇷 FRANCE | 10 | 3NT | ♣5 | -3 | +9 |
| +7.6 | Round 3 | 🇳🇴 NORWAY | 7 | 3♥ | ♣J | -2 | +8 |
| +7.5 | Round 7 | 🇱🇻 LATVIA | 2 | 4♥ | ♦T | = | +8 |
| +7.3 | Round 8 | 🇯🇵 JAPAN | 15 | 4♠ | ♣J | -1 | +12 |
| +7.2 | Round 8 | 🇯🇵 JAPAN | 3 | 4♥ | ♦10 | = | +10 |
| +7.1 | Round 3 | 🇳🇴 NORWAY | 12 | 6♦ | ♣A | = | +0 |
| +7.1 | Round 17 | 🇫🇷 FRANCE | 3 | 7♣x | ♥A | -5 | -7 |
| +7.0 | Round 4 | 🏴 ENGLAND | 9 | 6♥ | ♠K | -3 | +11 |
| +6.7 | Round 8 | 🇯🇵 JAPAN | 6 | 3NT | ♠5 | = | +0 |
| +6.7 | Round 8 | 🇯🇵 JAPAN | 13 | 3NT | ♦3 | +2 | +1 |
| +6.3 | Round 10 | 🇺🇸 USA2 | 7 | 4♥ | ♠6 | -1 | +12 |
| +6.2 | Round 10 | 🇺🇸 USA2 | 8 | 3NT | ♥5 | +1 | +7 |
| +5.8 | Round 15 | 🇨🇳 CHINA | 12 | 6NT | ♣9 | = | +0 |
| +5.7 | Round 13 | 🇸🇪 SWEDEN | 16 | 3NT | ♠K | = | -1 |
| +5.7 | Round 16 | 🇦🇺 AUSTRALIA | 7 | 3NT | ♥3 | +1 | +0 |
| +5.7 | Round 17 | 🇫🇷 FRANCE | 4 | 3NT | ♥4 | = | +0 |
| +5.1 | Round 13 | 🇸🇪 SWEDEN | 2 | 4♠ | ♠3 | +1 | +1 |
| +5.1 | Round 17 | 🇫🇷 FRANCE | 6 | 4♥ | ♠5 | +2 | +11 |
| +4.9 | Round 6 | 🇮🇹 ITALY | 14 | 5♥ | ♣3 | -1 | +11 |
| +4.9 | Round 7 | 🇱🇻 LATVIA | 8 | 3NT | ♦T | +1 | +0 |
| +4.9 | Round 17 | 🇫🇷 FRANCE | 8 | 3NT | ♦9 | -1 | +5 |
| +4.8 | Round 10 | 🇺🇸 USA2 | 5 | 4♠ | ♥A | -1 | +6 |
| +4.7 | Round 3 | 🇳🇴 NORWAY | 16 | 6♦ | ♣5 | +1 | -2 |
| +4.6 | Round 4 | 🏴 ENGLAND | 6 | 4♠ | ♣4 | +1 | +0 |
| +4.5 | Round 14 | 🇮🇱 ISRAEL | 10 | 3NT | ♠6 | +2 | -12 |
| +4.5 | Round 17 | 🇫🇷 FRANCE | 2 | 3NT | ♦J | = | +7 |
| +4.4 | Round 3 | 🇳🇴 NORWAY | 5 | 4♠ | ♠J | +1 | +1 |
| +4.3 | Round 3 | 🇳🇴 NORWAY | 6 | 2♥ | ♠A | = | +0 |
| +4.1 | Round 3 | 🇳🇴 NORWAY | 13 | 3N | ♥A | = | -13 |
| +4.0 | Round 6 | 🇮🇹 ITALY | 15 | 5♣ | ♠K | +1 | -2 |
| +4.0 | Round 7 | 🇱🇻 LATVIA | 10 | 3NT | ♥A | +2 | +0 |
| +3.8 | Round 4 | 🏴 ENGLAND | 10 | 2♦ | ♠K | = | +5 |
| +3.4 | Round 4 | 🏴 ENGLAND | 12 | 4♠ | ♠6 | +2 | +2 |
| +3.4 | Round 10 | 🇺🇸 USA2 | 12 | 5♣x | ♥4 | -1 | +0 |
| +3.2 | Round 6 | 🇮🇹 ITALY | 10 | Pass | +4 | ||
| +3.2 | Round 17 | 🇫🇷 FRANCE | 13 | 2♠ | ♥A | +2 | +1 |
| +3.1 | Round 3 | 🇳🇴 NORWAY | 11 | 4♥ | ♠J | -1 | +2 |
| +3.0 | Round 15 | 🇨🇳 CHINA | 13 | 4♠ | ♦9 | -1 | +6 |
| +2.9 | Round 6 | 🇮🇹 ITALY | 2 | 4♦ | ♠4 | -1 | +6 |
| +2.4 | Round 7 | 🇱🇻 LATVIA | 6 | 3NT | ♠6 | = | +7 |
| +2.3 | Round 10 | 🇺🇸 USA2 | 3 | 2♥ | ♦Q | +2 | +6 |
| +2.2 | Round 8 | 🇯🇵 JAPAN | 16 | 3NT | ♠2 | +3 | +1 |
| +2.1 | Round 8 | 🇯🇵 JAPAN | 12 | 3♦ | ♠Q | = | +5 |
| +1.9 | Round 13 | 🇸🇪 SWEDEN | 10 | 2♠ | ♥3 | -1 | +0 |
| +1.9 | Round 16 | 🇦🇺 AUSTRALIA | 8 | 4♥ | ♥3 | +1 | +1 |
| +1.9 | Round 17 | 🇫🇷 FRANCE | 14 | 4♥ | ♦4 | +1 | +4 |
| +1.8 | Round 17 | 🇫🇷 FRANCE | 7 | 5♥ | ♠6 | -2 | +12 |
| +1.7 | Round 6 | 🇮🇹 ITALY | 9 | 2♠ | ♦9 | -2 | +0 |
| +1.7 | Round 16 | 🇦🇺 AUSTRALIA | 12 | 3NT | ♥3 | = | +0 |
| +1.5 | Round 7 | 🇱🇻 LATVIA | 5 | 1NT | ♠6 | -2 | +0 |
| +1.4 | Round 7 | 🇱🇻 LATVIA | 3 | 6NT | ♣5 | +1 | +13 |
| +1.4 | Round 15 | 🇨🇳 CHINA | 11 | 4♥x | ♠J | -1 | +8 |
| +1.2 | Round 16 | 🇦🇺 AUSTRALIA | 11 | 4♥ | ♠6 | = | -11 |
| +1.0 | Round 8 | 🇯🇵 JAPAN | 5 | 3♥ | ♦5 | = | +0 |
| +0.9 | Round 7 | 🇱🇻 LATVIA | 11 | 3NT | ♣7 | +2 | +0 |
| +0.9 | Round 10 | 🇺🇸 USA2 | 9 | 4♥ | ♠2 | +1 | +0 |
| +0.9 | Round 14 | 🇮🇱 ISRAEL | 15 | 5♥ | ♦5 | = | +13 |
| +0.9 | Round 16 | 🇦🇺 AUSTRALIA | 13 | 3♥ | ♥3 | -3 | +8 |
| +0.7 | Round 13 | 🇸🇪 SWEDEN | 15 | 4♥ | ♠A | +1 | +0 |
| +0.6 | Round 3 | 🇳🇴 NORWAY | 14 | 1N | ♠2 | = | +0 |
| +0.5 | Round 15 | 🇨🇳 CHINA | 15 | 1NT | ♣2 | = | +0 |
| +0.5 | Round 16 | 🇦🇺 AUSTRALIA | 4 | 3NT | ♥3 | +1 | -1 |
| +0.3 | Round 16 | 🇦🇺 AUSTRALIA | 3 | 4♥ | ♥3 | -1 | -2 |
| +0.2 | Round 16 | 🇦🇺 AUSTRALIA | 14 | 3NT | ♥3 | -1 | -14 |
| +0.1 | Round 6 | 🇮🇹 ITALY | 4 | 1NT | ♦7 | -1 | +0 |
| +0.1 | Round 7 | 🇱🇻 LATVIA | 4 | 2♣ | ♦A | -2 | +2 |
| +0.1 | Round 14 | 🇮🇱 ISRAEL | 3 | 4♠ | ♥K | -1 | +4 |
| +0.1 | Round 17 | 🇫🇷 FRANCE | 9 | 4♥ | ♣A | = | +0 |
| -0.0 | Round 6 | 🇮🇹 ITALY | 3 | 5♥ | ♠4 | = | +0 |
| -0.0 | Round 10 | 🇺🇸 USA2 | 16 | 3♣ | ♠A | -2 | -1 |
| -0.1 | Round 6 | 🇮🇹 ITALY | 16 | 2♠ | ♥A | -1 | -2 |
| -0.1 | Round 14 | 🇮🇱 ISRAEL | 5 | 1NT | ♠3 | +1 | +1 |
| -0.1 | Round 15 | 🇨🇳 CHINA | 16 | 1NT | ♥3 | +1 | +6 |
| -0.1 | Round 16 | 🇦🇺 AUSTRALIA | 16 | 2NT | ♥3 | = | +1 |
| -0.2 | Round 4 | 🏴 ENGLAND | 2 | 4♠ | ♣J | = | -1 |
| -0.2 | Round 7 | 🇱🇻 LATVIA | 15 | 2♥ | ♣6 | = | +7 |
| -0.3 | Round 13 | 🇸🇪 SWEDEN | 3 | 3NT | ♠6 | +1 | +0 |
| -0.3 | Round 16 | 🇦🇺 AUSTRALIA | 2 | 5♦x | ♥3 | -2 | +5 |
| -0.3 | Round 17 | 🇫🇷 FRANCE | 11 | 2♠ | ♣J | -4 | +5 |
| -0.4 | Round 6 | 🇮🇹 ITALY | 8 | 1NT | ♠6 | -1 | +4 |
| -0.4 | Round 7 | 🇱🇻 LATVIA | 1 | 2♦ | ♠2 | -1 | +2 |
| -0.4 | Round 7 | 🇱🇻 LATVIA | 14 | 3♦ | ♣K | +2 | -6 |
| -0.4 | Round 13 | 🇸🇪 SWEDEN | 4 | 3♥ | ♠K | = | -7 |
| -0.5 | Round 4 | 🏴 ENGLAND | 8 | 1♠ | ♦K | +1 | -7 |
| -0.5 | Round 6 | 🇮🇹 ITALY | 6 | 4♥ | ♣8 | +1 | +11 |
| -0.5 | Round 14 | 🇮🇱 ISRAEL | 6 | 2♥ | ♣A | = | +6 |
| -0.6 | Round 6 | 🇮🇹 ITALY | 13 | 2♠ | ♥J | +2 | -1 |
| -0.6 | Round 8 | 🇯🇵 JAPAN | 7 | 3NT | ♦6 | +1 | +0 |
| -0.6 | Round 13 | 🇸🇪 SWEDEN | 5 | 4♠ | ♥3 | +2 | -1 |
| -0.7 | Round 3 | 🇳🇴 NORWAY | 8 | 4♠ | ♦5 | -2 | +0 |
| -0.7 | Round 8 | 🇯🇵 JAPAN | 4 | 4♥ | ♣J | -1 | -6 |
| -0.7 | Round 10 | 🇺🇸 USA2 | 15 | 4♠ | ♣9 | +1 | +0 |
| -0.8 | Round 14 | 🇮🇱 ISRAEL | 1 | 3NT | ♣5 | +2 | +0 |
| -0.9 | Round 16 | 🇦🇺 AUSTRALIA | 15 | 3NT | ♥3 | +1 | +0 |
| -1.0 | Round 4 | 🏴 ENGLAND | 7 | 2♦ | ♠8 | +1 | +0 |
| -1.1 | Round 15 | 🇨🇳 CHINA | 6 | 3♦ | ♠9 | = | +0 |
| -1.3 | Round 13 | 🇸🇪 SWEDEN | 11 | 3NT | ♥3 | = | +0 |
| -1.3 | Round 13 | 🇸🇪 SWEDEN | 13 | 3♣ | ♣4 | -1 | +0 |
| -1.3 | Round 14 | 🇮🇱 ISRAEL | 11 | 4♥ | ♦8 | = | -3 |
| -1.4 | Round 3 | 🇳🇴 NORWAY | 15 | 3♠ | ♥6 | -3 | +0 |
| -1.5 | Round 3 | 🇳🇴 NORWAY | 1 | 3NT | ♣K | = | +0 |
| -1.5 | Round 6 | 🇮🇹 ITALY | 11 | 2NT | ♣J | = | +1 |
| -1.6 | Round 6 | 🇮🇹 ITALY | 7 | 3♣ | ♥9 | +2 | +10 |
| -1.6 | Round 10 | 🇺🇸 USA2 | 13 | 3♠ | ♥10 | = | +0 |
| -1.6 | Round 13 | 🇸🇪 SWEDEN | 14 | 2♥ | ♣7 | -2 | +0 |
| -1.9 | Round 14 | 🇮🇱 ISRAEL | 9 | 5♦ | ♥A | +1 | +9 |
| -2.0 | Round 3 | 🇳🇴 NORWAY | 10 | 2♥ | ♦7 | -1 | -5 |
| -2.1 | Round 8 | 🇯🇵 JAPAN | 11 | 6♥ | ♠9 | +1 | -11 |
| -2.1 | Round 13 | 🇸🇪 SWEDEN | 1 | 4♠ | ♦A | = | -3 |
| -2.1 | Round 14 | 🇮🇱 ISRAEL | 2 | 1NT | ♣7 | +1 | +0 |
| -2.2 | Round 16 | 🇦🇺 AUSTRALIA | 9 | 3NT | ♥3 | -1 | -12 |
| -2.3 | Round 14 | 🇮🇱 ISRAEL | 4 | 4♥ | ♠7 | +1 | +13 |
| -2.3 | Round 15 | 🇨🇳 CHINA | 9 | 4♠ | ♥4 | +1 | +0 |
| -2.5 | Round 15 | 🇨🇳 CHINA | 14 | 4♠x | ♣4 | -2 | +4 |
| -2.6 | Round 14 | 🇮🇱 ISRAEL | 12 | 2♠ | ♠4 | -2 | +0 |
| -2.7 | Round 8 | 🇯🇵 JAPAN | 8 | 4♥ | ♦5 | = | +1 |
| -2.8 | Round 14 | 🇮🇱 ISRAEL | 8 | 2NT | ♠Q | = | +0 |
| -2.9 | Round 6 | 🇮🇹 ITALY | 1 | 2♦x | ♦6 | +2 | +1 |
| -3.0 | Round 13 | 🇸🇪 SWEDEN | 12 | 1NT | ♠Q | -1 | +0 |
| -3.0 | Round 15 | 🇨🇳 CHINA | 4 | 4♠x | ♠6 | = | -4 |
| -3.2 | Round 15 | 🇨🇳 CHINA | 1 | 4♥ | ♠Q | = | -3 |
| -3.3 | Round 8 | 🇯🇵 JAPAN | 1 | 2♠ | ♥K | = | -13 |
| -3.3 | Round 8 | 🇯🇵 JAPAN | 14 | 3♦ | ♣6 | = | -5 |
| -3.4 | Round 17 | 🇫🇷 FRANCE | 12 | 3NT | ♠4 | = | -10 |
| -3.7 | Round 7 | 🇱🇻 LATVIA | 16 | 4♦ | ♠8 | = | -1 |
| -3.7 | Round 10 | 🇺🇸 USA2 | 6 | 2♥ | ♣Q | -1 | -11 |
| -3.7 | Round 13 | 🇸🇪 SWEDEN | 8 | 3NT | ♣3 | = | -3 |
| -3.7 | Round 14 | 🇮🇱 ISRAEL | 16 | 2♠ | ♠2 | = | -5 |
| -3.7 | Round 16 | 🇦🇺 AUSTRALIA | 5 | 3NT | ♥3 | +1 | +0 |
| -3.9 | Round 14 | 🇮🇱 ISRAEL | 14 | 4♣ | ♦K | -1 | -10 |
| -4.1 | Round 3 | 🇳🇴 NORWAY | 4 | 3♥ | ♠3 | = | +0 |
| -4.1 | Round 4 | 🏴 ENGLAND | 14 | 6♥ | ♥A | -1 | -11 |
| -4.1 | Round 8 | 🇯🇵 JAPAN | 10 | 3♠ | ♥10 | -2 | -7 |
| -4.2 | Round 10 | 🇺🇸 USA2 | 11 | 2♠ | ♣A | = | -11 |
| -4.3 | Round 7 | 🇱🇻 LATVIA | 7 | 4♥ | ♣Q | = | -10 |
| -4.3 | Round 17 | 🇫🇷 FRANCE | 5 | 4♥ | ♣9 | = | +0 |
| -4.5 | Round 15 | 🇨🇳 CHINA | 5 | 4♠ | ♦T | -2 | -7 |
| -4.7 | Round 10 | 🇺🇸 USA2 | 10 | 3NT | ♠A | -1 | -6 |
| -4.7 | Round 17 | 🇫🇷 FRANCE | 15 | 3♠ | ♥6 | -1 | -8 |
| -5.0 | Round 15 | 🇨🇳 CHINA | 2 | 2♥ | ♣A | -1 | +1 |
| -5.1 | Round 16 | 🇦🇺 AUSTRALIA | 10 | 4♥ | ♥3 | = | +1 |
| -5.1 | Round 17 | 🇫🇷 FRANCE | 16 | 5♥x | ♥6 | -2 | -8 |
| -5.2 | Round 14 | 🇮🇱 ISRAEL | 7 | 2♥ | ♦4 | -3 | -4 |
| -5.5 | Round 3 | 🇳🇴 NORWAY | 9 | 4♠ | ♣6 | +1 | -11 |
| -5.6 | Round 4 | 🏴 ENGLAND | 16 | 6♦x | ♣Q | -3 | -12 |
| -6.4 | Round 15 | 🇨🇳 CHINA | 3 | 4♥ | ♠A | = | -3 |
| -6.7 | Round 10 | 🇺🇸 USA2 | 1 | 4♠x | ♥A | = | -7 |
| -7.3 | Round 6 | 🇮🇹 ITALY | 5 | 2♣x | ♣A | -2 | -5 |
| -7.6 | Round 4 | 🏴 ENGLAND | 11 | 5♦ | ♥A | +1 | -1 |
| -8.1 | Round 3 | 🇳🇴 NORWAY | 2 | 4♥ | ♦3 | -1 | -10 |
| -8.4 | Round 8 | 🇯🇵 JAPAN | 9 | 4♠ | ♥A | = | -11 |
| -8.5 | Round 7 | 🇱🇻 LATVIA | 9 | 4♠ | ♥Q | +1 | -1 |
| -10.0 | Round 16 | 🇦🇺 AUSTRALIA | 1 | 5♥x | ♥3 | = | -13 |
| -10.4 | Round 7 | 🇱🇻 LATVIA | 12 | 5♥x | ♦T | -2 | -9 |
| -11.4 | Round 3 | 🇳🇴 NORWAY | 3 | 1♠x | ♥7 | -3 | -12 |
| -12.6 | Round 13 | 🇸🇪 SWEDEN | 6 | 7♠ | ♦K | = | +0 |