GRZEJDZIAK Igor · POLAND
vs par split: bidding -0.43 · play +0.21
Strength of schedule: opponents averaged -0.70/bd (an easy draw) → opponent-adjusted -0.47/bd
Card play — on target: opening leads 81.8% · declarer play 71.4% · defence 94.7%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 75.0% (4) | 85.7% (7) |
| Declarer play | 100.0% (3) | 50.0% (4) |
| Defence | 100.0% (8) | 90.9% (11) |
Opening leads by suit led: ♠ 100.0% (3) · ♥ 66.7% (3) · ♦ 75.0% (4) · ♣ 100.0% (1)
vs par by strain: NT +1.87 (15) · a suit -1.37 (27)
vs par by level: part-score -1.00 (11) · game -0.56 (27) · slam +4.25 (4)
By role: declaring -0.24/bd (-3.35 vs par · 23) · defending +0.80/bd (+3.58 vs par · 19)
By vulnerability: vulnerable +0.88/bd (+0.38 vs par · 21) · not vulnerable -0.42/bd (-0.81 vs par · 21)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round of 32 | S.Grzejdziak | C.Seker – C.Adiguzel | Closed | 14 | +4.5 | +0.32 | -1.14 |
| Round of 16 | S.Grzejdziak | S.Shan – L.Gan | Closed | 14 | +5.3 | +0.38 | +1.50 |
| Round of 16 | S.Grzejdziak | D.Lu – Y.Huang | Closed | 14 | -0.2 | -0.01 | -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 |
|---|---|---|---|---|---|---|---|
| +7.1 | Round of 16 | LU DONG | 4 | 6♥ | ♠4 | -1 | +7 |
| +5.5 | Round of 16 | LU DONG | 15 | 6NT | ♦10 | -1 | +11 |
| +5.0 | Round of 16 | LU DONG | 18 | 3NT | ♥8 | +2 | +4 |
| +4.7 | Round of 32 | KOKSOY | 17 | 2♠ | ♥7 | +1 | +7 |
| +3.5 | Round of 16 | LU DONG | 9 | 4♥ | ♦10 | +1 | +0 |
| +3.3 | Round of 32 | KOKSOY | 28 | 3NT | ♦4 | -2 | +5 |
| +2.7 | Round of 16 | LU DONG | 26 | 5♥ | ♠A | -3 | +10 |
| +2.6 | Round of 16 | LU DONG | 12 | 1NT | ♣10 | +2 | +7 |
| +2.1 | Round of 32 | KOKSOY | 24 | 4♠ | ♣J | +1 | +0 |
| +2.1 | Round of 16 | LU DONG | 7 | 6♣ | ♠J | -1 | +16 |
| +2.1 | Round of 16 | LU DONG | 11 | 4♥ | ♠K | +1 | +0 |
| +2.0 | Round of 32 | KOKSOY | 27 | 4♥x | ♥2 | -1 | +8 |
| +1.8 | Round of 16 | LU DONG | 13 | 3♠ | ♥A | = | -10 |
| +1.6 | Round of 32 | KOKSOY | 23 | 3NT | ♥6 | +1 | +4 |
| +1.4 | Round of 16 | LU DONG | 25 | 4♠ | ♥K | = | +0 |
| +1.3 | Round of 32 | KOKSOY | 21 | 1NT | ♥2 | -1 | -2 |
| +1.2 | Round of 16 | LU DONG | 20 | 3♠ | ♦7 | -1 | -1 |
| +0.8 | Round of 32 | KOKSOY | 18 | 3NT | ♣2 | +1 | +1 |
| +0.5 | Round of 32 | KOKSOY | 25 | 3NT | ♥K | = | -1 |
| +0.5 | Round of 32 | KOKSOY | 26 | 3♣ | ♥2 | = | +0 |
| +0.5 | Round of 16 | LU DONG | 21 | 3NT | ♥5 | +3 | -13 |
| +0.4 | Round of 16 | LU DONG | 5 | 3NT | ♠Q | +1 | +11 |
| +0.1 | Round of 16 | LU DONG | 6 | 3NT | ♦2 | +1 | +0 |
| -0.5 | Round of 16 | LU DONG | 17 | 2♠ | ♥A | +1 | -6 |
| -0.8 | Round of 32 | KOKSOY | 16 | 4♠ | ♦A | = | -3 |
| -0.8 | Round of 16 | LU DONG | 10 | 4♠ | ♦3 | = | -1 |
| -0.9 | Round of 16 | LU DONG | 1 | 3NT | ♠4 | +2 | +11 |
| -0.9 | Round of 16 | LU DONG | 28 | 1NT | ♥5 | -2 | -1 |
| -1.0 | Round of 32 | KOKSOY | 22 | 4♠ | ♠8 | +1 | +0 |
| -1.2 | Round of 16 | LU DONG | 19 | 4♥ | ♦5 | = | +1 |
| -1.5 | Round of 16 | LU DONG | 2 | 2♠ | ♦8 | = | +0 |
| -1.5 | Round of 16 | LU DONG | 24 | 4♥ | ♣7 | +1 | +0 |
| -1.8 | Round of 16 | LU DONG | 27 | 4♠x | ♥Q | -2 | -4 |
| -1.9 | Round of 16 | LU DONG | 14 | 4♥ | ♠A | = | +1 |
| -2.1 | Round of 32 | KOKSOY | 19 | 4♠ | ♣8 | -1 | -5 |
| -2.1 | Round of 16 | LU DONG | 22 | 1NT | ♣Q | -2 | +1 |
| -2.2 | Round of 16 | LU DONG | 16 | 3♣ | ♥A | = | -6 |
| -2.3 | Round of 32 | KOKSOY | 15 | 5♦ | ♥A | +1 | -13 |
| -3.8 | Round of 16 | LU DONG | 3 | 4♠ | ♥10 | -1 | -10 |
| -5.5 | Round of 16 | LU DONG | 8 | 5♦ | ♥2 | -2 | -11 |
| -6.1 | Round of 32 | KOKSOY | 20 | 6♥ | ♣2 | -2 | -17 |
| -6.3 | Round of 16 | LU DONG | 23 | 3NT | ♥J | -3 | -10 |