IZWANTOWSKI Jan · POLAND U21
vs par split: bidding +0.93 · play -0.90
Strength of schedule: opponents averaged -0.04/bd (an average draw) → opponent-adjusted +0.08/bd
Card play — on target: opening leads 100.0% #1 of 428 · declarer play 61.9% #388 of 428 · defence 79.2% #313 of 428
Bidding activity — not a pass: 40.9% #318 of 428 (70/171)
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 100.0% (2) | 100.0% (7) |
| Declarer play | 37.5% (8) | 76.9% (13) |
| Defence | 66.7% (3) | 81.0% (21) |
Opening leads by suit led: ♠ 100.0% (1) · ♥ 100.0% (3) · ♦ 100.0% (1) · ♣ 100.0% (4)
vs par by strain: NT -2.07 (15) · a suit +0.73 (45)
vs par by level: part-score +0.36 (25) · game -0.64 (33) · slam +7.00 (2)
By role: declaring -0.60/bd (-2.19 vs par · 36) · defending +1.19/bd (+3.38 vs par · 24)
By vulnerability: vulnerable +0.70/bd (+0.79 vs par · 29) · not vulnerable -0.43/bd (-0.68 vs par · 31)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 2 | W.Tokarski | J.Stoeckli – F.Stoeckli | Open | 10 | +0.1 | +0.01 | -1.40 |
| Round 3 | W.Tokarski | T.Stryszawski – J.Gawron | Open | 10 | -2.6 | -0.26 | +0.60 |
| Round 5 | W.Tokarski | P.Belcak – M.Henc | Closed | 10 | +12.5 | +1.25 | +0.40 |
| Round 6 | W.Tokarski | M.Vodicka – B.Koros | Closed | 10 | -49.0 | -4.90 | -4.50 |
| Round 8 | W.Tokarski | M.Krasa – C.Romanowski | Closed | 10 | +37.0 | +3.70 | +5.00 |
| Round 9 | W.Tokarski | K.Ozkurt – I.Mermer | Closed | 10 | +9.0 | +0.90 | +0.10 |
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 |
|---|---|---|---|---|---|---|---|
| +10.2 | Round 8 | CZECHIA FANATIC | 12 | 4♥ | ♦J | -4 | +12 |
| +8.9 | Round 2 | ZAEHRINGER | 13 | 5♣x | ♥T | = | +12 |
| +8.8 | Round 9 | VISTA | 29 | 2♠x | ♥7 | -2 | +9 |
| +8.6 | Round 8 | CZECHIA FANATIC | 17 | 6♥ | ♠A | -1 | +14 |
| +7.1 | Round 5 | SLOVAKIA WHITE | 12 | 3♠ | ♥9 | +2 | +10 |
| +5.4 | Round 9 | VISTA | 21 | 4♠ | ♥9 | -1 | +6 |
| +5.3 | Round 8 | CZECHIA FANATIC | 11 | 1NT | ♠2 | +1 | +6 |
| +5.1 | Round 3 | CKIS SKAWINA WISLA | 23 | 3NT | ♣Q | -1 | +6 |
| +5.0 | Round 9 | VISTA | 30 | 3NT | ♠Q | +1 | +0 |
| +4.4 | Round 2 | ZAEHRINGER | 20 | 2♥ | ♣Q | -1 | +6 |
| +4.4 | Round 8 | CZECHIA FANATIC | 15 | 5♦ | ♣2 | +2 | +11 |
| +3.3 | Round 3 | CKIS SKAWINA WISLA | 26 | 4♥ | ♦Q | = | -1 |
| +3.1 | Round 5 | SLOVAKIA WHITE | 20 | 3NT | ♠K | = | -13 |
| +3.0 | Round 8 | CZECHIA FANATIC | 14 | 2NT | ♦9 | +1 | +2 |
| +2.6 | Round 3 | CKIS SKAWINA WISLA | 30 | 4♠ | ♥2 | +1 | +1 |
| +2.5 | Round 5 | SLOVAKIA WHITE | 18 | 2♠ | ♥A | +1 | +0 |
| +2.0 | Round 5 | SLOVAKIA WHITE | 17 | 2♠ | ♥3 | -1 | -1 |
| +1.8 | Round 8 | CZECHIA FANATIC | 13 | 3♥ | ♠J | -2 | +3 |
| +1.4 | Round 5 | SLOVAKIA WHITE | 11 | 2♠ | ♣A | = | +0 |
| +1.4 | Round 8 | CZECHIA FANATIC | 16 | 4♥ | ♣T | +2 | +1 |
| +1.4 | Round 8 | CZECHIA FANATIC | 18 | 4♥ | ♠A | = | +0 |
| +1.3 | Round 2 | ZAEHRINGER | 18 | 3♥ | ♣4 | +1 | +6 |
| +1.3 | Round 5 | SLOVAKIA WHITE | 19 | 3♥ | ♦4 | +1 | +2 |
| +1.2 | Round 3 | CKIS SKAWINA WISLA | 21 | 2♥ | ♥4 | = | +8 |
| +1.0 | Round 8 | CZECHIA FANATIC | 19 | 1NT | ♥4 | +2 | +1 |
| +1.0 | Round 9 | VISTA | 26 | 4♠ | ♦Q | +1 | +0 |
| +0.9 | Round 9 | VISTA | 23 | 3NT | ♦2 | = | +0 |
| +0.8 | Round 3 | CKIS SKAWINA WISLA | 29 | 2♥ | ♥4 | +1 | +0 |
| +0.4 | Round 5 | SLOVAKIA WHITE | 13 | 4♠ | ♣J | +1 | +13 |
| -0.1 | Round 2 | ZAEHRINGER | 15 | 3♠ | ♦7 | = | -10 |
| -0.1 | Round 3 | CKIS SKAWINA WISLA | 22 | 3NT | ♥5 | +1 | +0 |
| -0.1 | Round 8 | CZECHIA FANATIC | 20 | 3♥ | ♠K | -1 | +0 |
| -0.4 | Round 6 | SLOVAKIA BLUE | 30 | 4♥ | ♦A | +1 | +0 |
| -0.5 | Round 9 | VISTA | 22 | 4♥ | ♦5 | = | -1 |
| -0.6 | Round 2 | ZAEHRINGER | 16 | 1NT | ♠5 | -1 | -4 |
| -0.6 | Round 6 | SLOVAKIA BLUE | 23 | 3NT | ♠4 | = | -2 |
| -0.8 | Round 5 | SLOVAKIA WHITE | 16 | 6♥ | ♦Q | = | +0 |
| -1.0 | Round 2 | ZAEHRINGER | 17 | 3NT | ♣T | -2 | -5 |
| -1.1 | Round 5 | SLOVAKIA WHITE | 15 | 3♠ | ♥3 | +1 | -1 |
| -1.5 | Round 2 | ZAEHRINGER | 19 | 5♠ | ♦7 | = | +0 |
| -1.6 | Round 9 | VISTA | 24 | 3♠ | ♥4 | +1 | -4 |
| -1.7 | Round 3 | CKIS SKAWINA WISLA | 24 | 3♣ | ♠A | -2 | +0 |
| -1.9 | Round 9 | VISTA | 25 | 3NT | ♥Q | = | +1 |
| -2.3 | Round 3 | CKIS SKAWINA WISLA | 25 | 4♠x | ♦A | -3 | +0 |
| -2.8 | Round 9 | VISTA | 27 | 4♥x | ♣T | -1 | +0 |
| -3.1 | Round 6 | SLOVAKIA BLUE | 29 | 3♦ | ♠5 | +1 | +0 |
| -3.3 | Round 2 | ZAEHRINGER | 14 | 5♦x | ♦J | -1 | +0 |
| -3.3 | Round 6 | SLOVAKIA BLUE | 24 | 4♠ | ♥Q | -1 | -4 |
| -3.4 | Round 5 | SLOVAKIA WHITE | 14 | 2♠ | ♦Q | +1 | -6 |
| -3.9 | Round 2 | ZAEHRINGER | 12 | 4♥ | ♠J | -2 | -8 |
| -4.1 | Round 2 | ZAEHRINGER | 11 | 4♠ | ♥4 | -2 | -11 |
| -4.1 | Round 6 | SLOVAKIA BLUE | 26 | 3♦ | ♠Q | -1 | -5 |
| -4.4 | Round 6 | SLOVAKIA BLUE | 28 | 2♣ | ♣2 | = | -5 |
| -4.7 | Round 3 | CKIS SKAWINA WISLA | 27 | 4♠ | ♣5 | -2 | +0 |
| -5.3 | Round 9 | VISTA | 28 | 3NT | ♦3 | -1 | -10 |
| -6.3 | Round 6 | SLOVAKIA BLUE | 22 | 4♥ | ♠A | -1 | -6 |
| -6.3 | Round 6 | SLOVAKIA BLUE | 27 | 3NT | ♥2 | +1 | -1 |
| -6.8 | Round 3 | CKIS SKAWINA WISLA | 28 | 3♠ | ♣5 | +1 | -8 |
| -9.8 | Round 6 | SLOVAKIA BLUE | 25 | 3NT | ♥4 | -1 | -12 |
| -10.7 | Round 6 | SLOVAKIA BLUE | 21 | 4♥ | ♣9 | = | -10 |